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linux/net/mac80211/util.c

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[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-07-15 11:47:34 -04:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
[NET]: Make the device list and device lookups per namespace. This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-17 11:56:21 -07:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: provide interface iterator for drivers Sometimes drivers need to know which interfaces are associated with their hardware. Rather than forcing those drivers to keep track of the interfaces that were added, this adds an iteration function to mac80211. As it is intended to be used from the interface add/remove callbacks, the iteration function may currently only be called under RTNL. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-09 01:57:29 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: add driver ops wrappers In order to later add tracing or verifications to the driver calls mac80211 makes, this patch adds static inline wrappers for all operations. All calls are now written as drv_<op>(local, ...); instead of local->ops-><op>(&local->hw, ...); Where necessary, the wrappers also do existence checking and return default values as appropriate. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-23 18:52:52 +02:00
mac80211: rename files This patch renames all mac80211 files (except ieee80211_i.h) to get rid of the useless ieee80211_ prefix. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 15:14:40 -04:00
mac80211: mesh data structures and first mesh changes Includes integration in struct sta_info of mesh peer link elements, previously on their own mesh peer link table. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-23 15:17:11 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
cfg80211: rework key operation This reworks the key operation in cfg80211, and now only allows, from userspace, configuring keys (via nl80211) after the connection has been established (in managed mode), the IBSS been joined (in IBSS mode), at any time (in AP[_VLAN] modes) or never for all the other modes. In order to do shared key authentication correctly, it is now possible to give a WEP key to the AUTH command. To configure static WEP keys, these are given to the CONNECT or IBSS_JOIN command directly, for a userspace SME it is assumed it will configure it properly after the connection has been established. Since mac80211 used to check the default key in IBSS mode to see whether or not the network is protected, it needs an update in that area, as well as an update to make use of the WEP key passed to auth() for shared key authentication. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 14:22:54 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: allow mac80211 drivers to get to struct ieee80211_hw from wiphy If a driver is given a wiphy and it wants to get to its private mac80211 driver area it can use wiphy_to_ieee80211_hw() to get first to its ieee80211_hw and then access the private structure via hw->priv. The wiphy_priv() is already being used internally by mac80211 and drivers should not use this. This can be helpful in a drivers reg_notifier(). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 15:05:53 -08:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: A-MPDU Rx adding BAR handling capability This patch adds the ability to handle Block Ack Request Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-25 17:00:36 +02:00
mac80211: use nl80211 interface types There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 00:01:58 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: pass in PS_POLL frames This patch fixes should_drop_frame function to pass in ps poll control frames required for power save functioanlity. Interface types that do not have interest for PS POLL frames now drop it in handler. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-18 17:23:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
mac80211: pass in PS_POLL frames This patch fixes should_drop_frame function to pass in ps poll control frames required for power save functioanlity. Interface types that do not have interest for PS POLL frames now drop it in handler. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-18 17:23:53 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
mac80211: pass in PS_POLL frames This patch fixes should_drop_frame function to pass in ps poll control frames required for power save functioanlity. Interface types that do not have interest for PS POLL frames now drop it in handler. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-18 17:23:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
mac80211: A-MPDU Rx adding BAR handling capability This patch adds the ability to handle Block Ack Request Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-25 17:00:36 +02:00
mac80211: use nl80211 interface types There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 00:01:58 +02:00
mac80211: A-MPDU Rx adding BAR handling capability This patch adds the ability to handle Block Ack Request Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-25 17:00:36 +02:00
mac80211: use nl80211 interface types There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 00:01:58 +02:00
mac80211: A-MPDU Rx adding BAR handling capability This patch adds the ability to handle Block Ack Request Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-25 17:00:36 +02:00
mac80211: use new helpers in util.c - ieee80211_get_bssid() Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-11 14:21:58 -07:00
mac80211: A-MPDU Rx adding BAR handling capability This patch adds the ability to handle Block Ack Request Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-25 17:00:36 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: split ieee80211_txrx_data Split it into ieee80211_tx_data and ieee80211_rx_data to clarify usage/flag usage and remove the stupid union thing. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-25 16:27:43 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use skb list for fragments We are currently linking the skbs by using skb->next directly. This works, but the preferred way is to use a struct sk_buff_head instead. That also prepares for passing that to drivers directly. While at it I noticed we calculate the duration for fragments twice -- remove one of them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-16 15:28:55 +01:00
mac80211: rewrite fragmentation Fragmentation currently uses an allocated array to store the fragment skbs, and then keeps track of which have been sent and which are still pending etc. This is rather complicated; make it simpler by just chaining the fragments into skb->next and removing from that list when sent. Also simplifies all code that needs to touch fragments, since it now only needs to walk the skb->next list. This is a prerequisite for fixing the stored packet code, which I need to do for proper aggregation packet storing. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:35 +01:00
mac80211: use skb list for fragments We are currently linking the skbs by using skb->next directly. This works, but the preferred way is to use a struct sk_buff_head instead. That also prepares for passing that to drivers directly. While at it I noticed we calculate the duration for fragments twice -- remove one of them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-16 15:28:55 +01:00
mac80211: rewrite fragmentation Fragmentation currently uses an allocated array to store the fragment skbs, and then keeps track of which have been sent and which are still pending etc. This is rather complicated; make it simpler by just chaining the fragments into skb->next and removing from that list when sent. Also simplifies all code that needs to touch fragments, since it now only needs to walk the skb->next list. This is a prerequisite for fixing the stored packet code, which I need to do for proper aggregation packet storing. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:35 +01:00
mac80211: use skb list for fragments We are currently linking the skbs by using skb->next directly. This works, but the preferred way is to use a struct sk_buff_head instead. That also prepares for passing that to drivers directly. While at it I noticed we calculate the duration for fragments twice -- remove one of them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-16 15:28:55 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: dont use interface indices in drivers This patch gets rid of the if_id stuff where possible in favour of a new per-virtual-interface structure "struct ieee80211_vif". This structure is located at the end of the per-interface structure and contains a variable length driver-use data area. This has two advantages: * removes the need to look up interfaces by if_id, this is better for working with network namespaces and performance * allows drivers to store and retrieve per-interface data without having to allocate own lists/hash tables Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-12-19 01:31:26 +01:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
cfg80211 API for channels/bitrates, mac80211 and driver conversion This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-24 19:38:38 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
cfg80211 API for channels/bitrates, mac80211 and driver conversion This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-24 19:38:38 +01:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: move bss_conf into vif Move bss_conf into the vif struct so that drivers can access it during ->tx without having to store it in the private data or similar. No driver updates because this is only for when they want to start using it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-11 01:51:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
cfg80211 API for channels/bitrates, mac80211 and driver conversion This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-24 19:38:38 +01:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: dont use interface indices in drivers This patch gets rid of the if_id stuff where possible in favour of a new per-virtual-interface structure "struct ieee80211_vif". This structure is located at the end of the per-interface structure and contains a variable length driver-use data area. This has two advantages: * removes the need to look up interfaces by if_id, this is better for working with network namespaces and performance * allows drivers to store and retrieve per-interface data without having to allocate own lists/hash tables Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-12-19 01:31:26 +01:00
mac80211: move TX info into skb->cb This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:29 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: add unified BSS configuration This patch (based on Ron Rindjunsky's) creates a framework for a unified way to pass BSS configuration to drivers that require the information, e.g. for implementing power save mode. This patch introduces new ieee80211_bss_conf structure that is passed to the driver via the new bss_info_changed() callback when the BSS configuration changes. This new BSS configuration infrastructure adds the following new features: * drivers are notified of their association AID * drivers are notified of association status and replaces the erp_ie_changed() callback. The patch also does the relevant driver updates for the latter change. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-12-28 14:32:58 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use rate index in TX control This patch modifies struct ieee80211_tx_control to give band info and the rate index (instead of rate pointers) to drivers. This mostly serves to reduce the TX control structure size to make it fit into skb->cb so that the fragmentation code can put it there and we can think about passing it to drivers that way in the future. The rt2x00 driver update was done by Ivo, thanks. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:27 +02:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: improved short preamble handling Similarly to CTS protection, whether short preambles are used for 802.11b transmissions should be a per-subif setting, not device global. For STAs, this patch makes short preamble handling automatic based on the ERP IE. For APs, hostapd still uses the prism ioctls, but the write ioctl has been restricted to AP-only subifs. ieee80211_txrx_data.short_preamble (an unused field) was removed. Unfortunately, some API changes were required for the following functions: - ieee80211_generic_frame_duration - ieee80211_rts_duration - ieee80211_ctstoself_duration - ieee80211_rts_get - ieee80211_ctstoself_get Affected drivers were updated accordingly. Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:24 +02:00
mac80211: move TX info into skb->cb This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:29 +02:00
cfg80211 API for channels/bitrates, mac80211 and driver conversion This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-24 19:38:38 +01:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: move bss_conf into vif Move bss_conf into the vif struct so that drivers can access it during ->tx without having to store it in the private data or similar. No driver updates because this is only for when they want to start using it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-11 01:51:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: dont use interface indices in drivers This patch gets rid of the if_id stuff where possible in favour of a new per-virtual-interface structure "struct ieee80211_vif". This structure is located at the end of the per-interface structure and contains a variable length driver-use data area. This has two advantages: * removes the need to look up interfaces by if_id, this is better for working with network namespaces and performance * allows drivers to store and retrieve per-interface data without having to allocate own lists/hash tables Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-12-19 01:31:26 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: move TX info into skb->cb This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:29 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: add unified BSS configuration This patch (based on Ron Rindjunsky's) creates a framework for a unified way to pass BSS configuration to drivers that require the information, e.g. for implementing power save mode. This patch introduces new ieee80211_bss_conf structure that is passed to the driver via the new bss_info_changed() callback when the BSS configuration changes. This new BSS configuration infrastructure adds the following new features: * drivers are notified of their association AID * drivers are notified of association status and replaces the erp_ie_changed() callback. The patch also does the relevant driver updates for the latter change. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-12-28 14:32:58 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: use rate index in TX control This patch modifies struct ieee80211_tx_control to give band info and the rate index (instead of rate pointers) to drivers. This mostly serves to reduce the TX control structure size to make it fit into skb->cb so that the fragmentation code can put it there and we can think about passing it to drivers that way in the future. The rt2x00 driver update was done by Ivo, thanks. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:27 +02:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: improved short preamble handling Similarly to CTS protection, whether short preambles are used for 802.11b transmissions should be a per-subif setting, not device global. For STAs, this patch makes short preamble handling automatic based on the ERP IE. For APs, hostapd still uses the prism ioctls, but the write ioctl has been restricted to AP-only subifs. ieee80211_txrx_data.short_preamble (an unused field) was removed. Unfortunately, some API changes were required for the following functions: - ieee80211_generic_frame_duration - ieee80211_rts_duration - ieee80211_ctstoself_duration - ieee80211_rts_get - ieee80211_ctstoself_get Affected drivers were updated accordingly. Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:24 +02:00
mac80211: move TX info into skb->cb This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:29 +02:00
cfg80211 API for channels/bitrates, mac80211 and driver conversion This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-24 19:38:38 +01:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: move bss_conf into vif Move bss_conf into the vif struct so that drivers can access it during ->tx without having to store it in the private data or similar. No driver updates because this is only for when they want to start using it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-11 01:51:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: fix virtual interfaces vs. injection Currently, virtual interface pointers passed to drivers might be from monitor interfaces and as such completely uninitialised because we do not tell the driver about monitor interfaces when those are created. Instead of passing them, we should therefore indicate to the driver that there is no information; do that by passing a NULL value and adjust drivers to cope with it. As a result, some mac80211 API functions also need to cope with a NULL vif pointer so drivers can still call them unconditionally. Also, when injecting frames we really don't want to pass NULL all the time, if we know we are the source address of a frame and have a local interface for that address, we can to use that interface. This also helps with processing the frame correctly for that interface which will help the 802.11w implementation. It's not entirely correct for VLANs or WDS interfaces because there the MAC address isn't unique, but it's already a lot better than what we do now. Finally, when injecting without a matching local interface, don't assign sequence numbers at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-12 22:52:47 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
mac80211: move TX info into skb->cb This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15 12:55:29 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix timing for 5 MHz and 10 MHz channels according to IEEE 802.11-2012 section 18, various timings change when using 5 MHz and 10 MHz. Reflect this by using a "shift" when calculating durations. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:51 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: fix crash with single-queue drivers Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-04 12:49:59 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: support P2P Device abstraction After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-18 20:07:15 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: fix crash with single-queue drivers Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-04 12:49:59 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: enhance tracing Enhance tracing by adding tracing for a variety of callbacks that the drivers call, and also for internal calls (currently limited to queue status). This can aid debugging what is going on in mac80211 in interaction with drivers, since we can now see what drivers call and not just what mac80211 calls in the driver. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-07 16:48:40 +02:00
mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi This patch removes all the virtual A-MPDU-queue bookkeeping from mac80211. Curiously, iwlwifi already does its own bookkeeping, so it doesn't require much changes except where it needs to handle starting and stopping the queues in mac80211. To handle the queue stop/wake properly, we rewrite the software queue number for aggregation frames and internally to iwlwifi keep track of the queues that map into the same AC queue, and only talk to mac80211 about the AC queue. The implementation requires calling two new functions, iwl_stop_queue and iwl_wake_queue instead of the mac80211 counterparts. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Reinette Chattre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:42 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: debounce queue stop/wake When the queue status changes we need to do a fair bit of work, so ignore no-op changes early. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:27 +02:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211: move netdev queue enabling to correct spot "mac80211: fix skb buffering issue" still left a race between enabling the hardware queues and the virtual interface queues. In hindsight it's totally obvious that enabling the netdev queues for a hardware queue when the hardware queue is enabled is wrong, because it could well possible that we can fill the hw queue with packets we already have pending. Thus, we must only enable the netdev queues once all the pending packets have been processed and sent off to the device. In testing, I haven't been able to trigger this race condition, but it's clearly there, possibly only when aggregation is being enabled. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-22 13:42:43 -07:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: move netdev queue enabling to correct spot "mac80211: fix skb buffering issue" still left a race between enabling the hardware queues and the virtual interface queues. In hindsight it's totally obvious that enabling the netdev queues for a hardware queue when the hardware queue is enabled is wrong, because it could well possible that we can fill the hw queue with packets we already have pending. Thus, we must only enable the netdev queues once all the pending packets have been processed and sent off to the device. In testing, I haven't been able to trigger this race condition, but it's clearly there, possibly only when aggregation is being enabled. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-22 13:42:43 -07:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: fix skb buffering issue Since I removed the master netdev, we've been keeping internal queues only, and even before that we never told the networking stack above the virtual interfaces about congestion. This means that packets are queued in mac80211 and the upper layers never know, possibly leading to memory exhaustion and other problems. This patch makes all interfaces multiqueue and uses ndo_select_queue to put the packets into queues per AC. Additionally, when the driver stops a queue, we now stop all corresponding queues for the virtual interfaces as well. The injection case will use VO by default for non-data frames, and BE for data frames, but downgrade any data frames according to ACM. It needs to be fleshed out in the future to allow chosing the queue/AC in radiotap. Reported-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 18:00:58 +01:00
mac80211: fix crash with single-queue drivers Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-04 12:49:59 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: enhance tracing Enhance tracing by adding tracing for a variety of callbacks that the drivers call, and also for internal calls (currently limited to queue status). This can aid debugging what is going on in mac80211 in interaction with drivers, since we can now see what drivers call and not just what mac80211 calls in the driver. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-07 16:48:40 +02:00
mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi This patch removes all the virtual A-MPDU-queue bookkeeping from mac80211. Curiously, iwlwifi already does its own bookkeeping, so it doesn't require much changes except where it needs to handle starting and stopping the queues in mac80211. To handle the queue stop/wake properly, we rewrite the software queue number for aggregation frames and internally to iwlwifi keep track of the queues that map into the same AC queue, and only talk to mac80211 about the AC queue. The implementation requires calling two new functions, iwl_stop_queue and iwl_wake_queue instead of the mac80211 counterparts. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Reinette Chattre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:42 +01:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211: debounce queue stop/wake When the queue status changes we need to do a fair bit of work, so ignore no-op changes early. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:27 +02:00
mac80211: rework the pending packets code The pending packets code is quite incomprehensible, uses memory barriers nobody really understands, etc. This patch reworks it entirely, using the queue spinlock, proper stop bits and the skb queues themselves to indicate whether packets are pending or not (rather than a separate variable like before). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:37 +01:00
mac80211: fix skb buffering issue Since I removed the master netdev, we've been keeping internal queues only, and even before that we never told the networking stack above the virtual interfaces about congestion. This means that packets are queued in mac80211 and the upper layers never know, possibly leading to memory exhaustion and other problems. This patch makes all interfaces multiqueue and uses ndo_select_queue to put the packets into queues per AC. Additionally, when the driver stops a queue, we now stop all corresponding queues for the virtual interfaces as well. The injection case will use VO by default for non-data frames, and BE for data frames, but downgrade any data frames according to ACM. It needs to be fleshed out in the future to allow chosing the queue/AC in radiotap. Reported-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 18:00:58 +01:00
mac80211: fix crash with single-queue drivers Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-04 12:49:59 +02:00
mac80211: fix skb buffering issue Since I removed the master netdev, we've been keeping internal queues only, and even before that we never told the networking stack above the virtual interfaces about congestion. This means that packets are queued in mac80211 and the upper layers never know, possibly leading to memory exhaustion and other problems. This patch makes all interfaces multiqueue and uses ndo_select_queue to put the packets into queues per AC. Additionally, when the driver stops a queue, we now stop all corresponding queues for the virtual interfaces as well. The injection case will use VO by default for non-data frames, and BE for data frames, but downgrade any data frames according to ACM. It needs to be fleshed out in the future to allow chosing the queue/AC in radiotap. Reported-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 18:00:58 +01:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: support P2P Device abstraction After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-18 20:07:15 +02:00
mac80211: fix crash with single-queue drivers Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-04 12:49:59 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: fix skb buffering issue Since I removed the master netdev, we've been keeping internal queues only, and even before that we never told the networking stack above the virtual interfaces about congestion. This means that packets are queued in mac80211 and the upper layers never know, possibly leading to memory exhaustion and other problems. This patch makes all interfaces multiqueue and uses ndo_select_queue to put the packets into queues per AC. Additionally, when the driver stops a queue, we now stop all corresponding queues for the virtual interfaces as well. The injection case will use VO by default for non-data frames, and BE for data frames, but downgrade any data frames according to ACM. It needs to be fleshed out in the future to allow chosing the queue/AC in radiotap. Reported-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 18:00:58 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: verify info->control.vif is not NULL When enqueuing packets on the internal packet queue, we need to ensure that we have a valid vif pointer since that is required since the net namespace work. Add some assertions to verify this, but also don't crash is for some reason we don't end up with a vif pointer -- warn and drop the packet in all these cases. Since this code touches a number of hotpaths, it is intended to be temporary, or maybe configurable in the future, at least the bit that is in the path that gets hit for every packet, ieee80211_tx_pending(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 10:33:31 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: verify info->control.vif is not NULL When enqueuing packets on the internal packet queue, we need to ensure that we have a valid vif pointer since that is required since the net namespace work. Add some assertions to verify this, but also don't crash is for some reason we don't end up with a vif pointer -- warn and drop the packet in all these cases. Since this code touches a number of hotpaths, it is intended to be temporary, or maybe configurable in the future, at least the bit that is in the path that gets hit for every packet, ieee80211_tx_pending(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 10:33:31 +02:00
mac80211: use ieee80211_free_txskb in a few more places Free tx status skbs when draining power save buffers, pending frames, or when tearing down a vif. Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when running out of socket write memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-10 22:40:23 +02:00
mac80211: verify info->control.vif is not NULL When enqueuing packets on the internal packet queue, we need to ensure that we have a valid vif pointer since that is required since the net namespace work. Add some assertions to verify this, but also don't crash is for some reason we don't end up with a vif pointer -- warn and drop the packet in all these cases. Since this code touches a number of hotpaths, it is intended to be temporary, or maybe configurable in the future, at least the bit that is in the path that gets hit for every packet, ieee80211_tx_pending(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 10:33:31 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: remove return value from add_pending_skbs Now that we no longer use the return value, we no longer need to maintain it either, so remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:30 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: remove return value from add_pending_skbs Now that we no longer use the return value, we no longer need to maintain it either, so remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:30 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: verify info->control.vif is not NULL When enqueuing packets on the internal packet queue, we need to ensure that we have a valid vif pointer since that is required since the net namespace work. Add some assertions to verify this, but also don't crash is for some reason we don't end up with a vif pointer -- warn and drop the packet in all these cases. Since this code touches a number of hotpaths, it is intended to be temporary, or maybe configurable in the future, at least the bit that is in the path that gets hit for every packet, ieee80211_tx_pending(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 10:33:31 +02:00
mac80211: use ieee80211_free_txskb in a few more places Free tx status skbs when draining power save buffers, pending frames, or when tearing down a vif. Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when running out of socket write memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-10 22:40:23 +02:00
mac80211: verify info->control.vif is not NULL When enqueuing packets on the internal packet queue, we need to ensure that we have a valid vif pointer since that is required since the net namespace work. Add some assertions to verify this, but also don't crash is for some reason we don't end up with a vif pointer -- warn and drop the packet in all these cases. Since this code touches a number of hotpaths, it is intended to be temporary, or maybe configurable in the future, at least the bit that is in the path that gets hit for every packet, ieee80211_tx_pending(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 10:33:31 +02:00
mac80211: add improved HW queue control mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 16:28:50 +02:00
mac80211: lazily stop queues in add_pending When adding pending SKBs there's no need to stop all queues, we only need to stop those that we're adding frames to. Implement that by lazily stopping a queue as we add an SKB. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:28 +02:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: fix powersaving clients races The code to handle powersaving stations has a race: when the powersave flag is lifted from a station, we could transmit a packet that is being processed for TX at the same time right away, even if there are other frames queued for it. This would cause frame reordering. To fix this, lift the flag only under the appropriate lock that blocks TX. Additionally, the code to allow drivers to block a station while frames for it are on the HW queue is never re-enabled the station, so traffic would get stuck indefinitely. Fix this by clearing the flag for this appropriately. Finally, as an optimisation, don't do anything if the driver unblocks an already unblocked station. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16 11:50:28 -08:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: do not pass PS frames out of mac80211 again In order to handle powersave frames properly we had needed to pass these out to the device queues again, and introduce the skb->requeue bit. This, however, also has unnecessary overhead by needing to 'clean up' already tried frames, and this clean-up code is also buggy when software encryption is used. Instead of sending the frames via the master netdev queue again, simply put them into the pending queue. This also fixes a problem where frames for that particular station could be reordered when some were still on the software queues and older ones are re-injected into the software queue after them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-07 21:58:37 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: add ieee80211_queue_stopped) This patch adds ieee80211_queue_stopped that let drivers to query queue status Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-07-24 21:02:04 +03:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi This patch removes all the virtual A-MPDU-queue bookkeeping from mac80211. Curiously, iwlwifi already does its own bookkeeping, so it doesn't require much changes except where it needs to handle starting and stopping the queues in mac80211. To handle the queue stop/wake properly, we rewrite the software queue number for aggregation frames and internally to iwlwifi keep track of the queues that map into the same AC queue, and only talk to mac80211 about the AC queue. The implementation requires calling two new functions, iwl_stop_queue and iwl_wake_queue instead of the mac80211 counterparts. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Reinette Chattre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-23 17:28:42 +01:00
mac80211: fix aggregation for hardware with ampdu queues Hardware with AMPDU queues currently has broken aggregation. This patch fixes it by making all A-MPDUs go over the regular AC queues, but keeping track of the hardware queues in mac80211. As a first rough version, it actually stops the AC queue for extended periods of time, which can be removed by adding buffering internal to mac80211, but is currently not a huge problem because people rarely use multiple TIDs that are in the same AC (and iwlwifi currently doesn't operate as AP). This is a short-term fix, my current medium-term plan, which I hope to execute soon as well, but am not sure can finish before .30, looks like this: 1) rework the internal queuing layer in mac80211 that we use for fragments if the driver stopped queue in the middle of a fragmented frame to be able to queue more frames at once (rather than just a single frame with its fragments) 2) instead of stopping the entire AC queue, queue up the frames in a per-station/per-TID queue during aggregation session initiation, when the session has come up take all those frames and put them onto the queue from 1) 3) push the ampdu queue layer abstraction this patch introduces in mac80211 into the driver, and remove the virtual queue stuff from mac80211 again This plan will probably also affect ath9k in that mac80211 queues the frames instead of passing them down, even when there are no ampdu queues. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-12 00:51:53 +01:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: fix ieee80211_queue_stopped() Johannes Berg notes mac80211 drivers which use ieee80211_queue_stopped() really only want to know if they previously requested a queue stop. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-10 15:41:40 -07:00
mac80211: remove master netdev With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-17 17:43:56 +02:00
mac80211: add ieee80211_queue_stopped) This patch adds ieee80211_queue_stopped that let drivers to query queue status Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-07-24 21:02:04 +03:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: track master queue status This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-18 23:35:20 +02:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
[MAC80211]: introduce util.c Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-07-27 15:43:23 +02:00
mac80211: provide interface iterator for drivers Sometimes drivers need to know which interfaces are associated with their hardware. Rather than forcing those drivers to keep track of the interfaces that were added, this adds an iteration function to mac80211. As it is intended to be used from the interface add/remove callbacks, the iteration function may currently only be called under RTNL. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-09 01:57:29 +01:00
mac80211: pass queue bitmap to flush operation There are a number of situations in which mac80211 only really needs to flush queues for one virtual interface, and in fact during this frames might be transmitted on other virtual interfaces. Calculate and pass a queue bitmap to the driver so it knows which queues to flush. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:11:00 +01:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: pass queue bitmap to flush operation There are a number of situations in which mac80211 only really needs to flush queues for one virtual interface, and in fact during this frames might be transmitted on other virtual interfaces. Calculate and pass a queue bitmap to the driver so it knows which queues to flush. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:11:00 +01:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: pass queue bitmap to flush operation There are a number of situations in which mac80211 only really needs to flush queues for one virtual interface, and in fact during this frames might be transmitted on other virtual interfaces. Calculate and pass a queue bitmap to the driver so it knows which queues to flush. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:11:00 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: provide interface iterator for drivers Sometimes drivers need to know which interfaces are associated with their hardware. Rather than forcing those drivers to keep track of the interfaces that were added, this adds an iteration function to mac80211. As it is intended to be used from the interface add/remove callbacks, the iteration function may currently only be called under RTNL. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-09 01:57:29 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: use nl80211 interface types There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 00:01:58 +02:00
mac80211: support active monitor interfaces Support them only if the driver advertises support for them via IEEE80211_HW_SUPPORTS_ACTIVE_MONITOR. Unlike normal monitor interfaces, they are added to the driver, along with their MAC address. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-28 13:01:53 +02:00
mac80211: use nl80211 interface types There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 00:01:58 +02:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: add p2p device type support When a driver advertises p2p device support, mac80211 will handle it, but internally it will rewrite the interface type to STA/AP rather than P2P-STA/GO since otherwise a lot of paths need to be touched that are otherwise identical. A p2p boolean tells drivers whether or not a given interface will be used for p2p or not. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-16 14:58:23 +02:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: clarify interface iteration and make it configurable During hardware restart, all interfaces are iterated even though they haven't been re-added to the driver, document this behaviour. The same also happens during resume, which is even more confusing since all of the interfaces were previously removed from the driver. Make this optional so drivers relying on the current behaviour can still use it, but to let drivers that don't want this behaviour disable it. Also convert all API users, keeping the old semantics except in hwsim, where the new normal ones are desired. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-06 20:23:30 +01:00
mac80211: add ieee80211_sdata_running Instead of always using netif_running(sdata->dev) use ieee80211_sdata_running(sdata) now which is just an inline containing netif_running() for now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:31 +01:00
mac80211: reduce reliance on netdev For bluetooth 3, we will most likely not have a netdev for a virtual interface (sdata), so prepare for that by reducing the reliance on having a netdev. This patch moves the name and address fields into the sdata struct and uses them from there all over. Some work is needed to keep them sync'ed, but that's not a lot of work and in slow paths anyway. In doing so, this also reduces the number of pointer dereferences in many places, because of things like sdata->dev->dev_addr becoming sdata->vif.addr. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-25 17:46:19 +01:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: clarify interface iteration and make it configurable During hardware restart, all interfaces are iterated even though they haven't been re-added to the driver, document this behaviour. The same also happens during resume, which is even more confusing since all of the interfaces were previously removed from the driver. Make this optional so drivers relying on the current behaviour can still use it, but to let drivers that don't want this behaviour disable it. Also convert all API users, keeping the old semantics except in hwsim, where the new normal ones are desired. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-06 20:23:30 +01:00
mac80211: iterate the virtual monitor interface If the virtual monitor interface is requested by the driver, it should also be iterated over when the driver wants to iterate all active interfaces. To allow that protect it with the iflist_mtx. Change-Id: I58ac5de2f4ce93d12c5a98ecd2859f60158d5d69 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-11 16:38:09 +02:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: iterate the virtual monitor interface If the virtual monitor interface is requested by the driver, it should also be iterated over when the driver wants to iterate all active interfaces. To allow that protect it with the iflist_mtx. Change-Id: I58ac5de2f4ce93d12c5a98ecd2859f60158d5d69 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-11 16:38:09 +02:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: add interface list lock Using only the RTNL has a number of problems, most notably that ieee80211_iterate_active_interfaces() and other interface list traversals cannot be done from the internal workqueue because it needs to be flushed under the RTNL. This patch introduces a new mutex that protects the interface list against modifications. A more detailed explanation is part of the code change. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-23 22:54:03 +01:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: clarify interface iteration and make it configurable During hardware restart, all interfaces are iterated even though they haven't been re-added to the driver, document this behaviour. The same also happens during resume, which is even more confusing since all of the interfaces were previously removed from the driver. Make this optional so drivers relying on the current behaviour can still use it, but to let drivers that don't want this behaviour disable it. Also convert all API users, keeping the old semantics except in hwsim, where the new normal ones are desired. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-06 20:23:30 +01:00
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces Since commit e38bad4766a110b61fa6038f10be16ced8c6cc38 mac80211: make ieee80211_iterate_active_interfaces not need rtnl rt2500usb and rt73usb broke down due to attempting register access in atomic context (which is not possible for USB hardware). This patch restores ieee80211_iterate_active_interfaces() to use RTNL lock, and provides the non-RTNL version under a new name: ieee80211_iterate_active_interfaces_atomic() So far only rt2x00 uses ieee80211_iterate_active_interfaces(), and those drivers require the RTNL version of ieee80211_iterate_active_interfaces(). Since they already call that function directly, this patch will automatically fix the USB rt2x00 drivers. v2: Rename ieee80211_iterate_active_interfaces_rtnl Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-10 13:40:49 +02:00
mac80211: make ieee80211_iterate_active_interfaces not need rtnl Interface iteration in mac80211 can be done without holding any locks because I converted it to RCU. Initially, I thought this wouldn't be needed for ieee80211_iterate_active_interfaces but it's turning out that multi-BSS AP support can be much simpler in a driver if ieee80211_iterate_active_interfaces can be called without holding locks. This converts it to use RCU, it adds a requirement that the callback it invokes cannot sleep. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-28 10:55:32 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: provide interface iterator for drivers Sometimes drivers need to know which interfaces are associated with their hardware. Rather than forcing those drivers to keep track of the interfaces that were added, this adds an iteration function to mac80211. As it is intended to be used from the interface add/remove callbacks, the iteration function may currently only be called under RTNL. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-09 01:57:29 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: make ieee80211_iterate_active_interfaces not need rtnl Interface iteration in mac80211 can be done without holding any locks because I converted it to RCU. Initially, I thought this wouldn't be needed for ieee80211_iterate_active_interfaces but it's turning out that multi-BSS AP support can be much simpler in a driver if ieee80211_iterate_active_interfaces can be called without holding locks. This converts it to use RCU, it adds a requirement that the callback it invokes cannot sleep. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-28 10:55:32 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: iterate the virtual monitor interface If the virtual monitor interface is requested by the driver, it should also be iterated over when the driver wants to iterate all active interfaces. To allow that protect it with the iflist_mtx. Change-Id: I58ac5de2f4ce93d12c5a98ecd2859f60158d5d69 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-11 16:38:09 +02:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: provide interface iterator for drivers Sometimes drivers need to know which interfaces are associated with their hardware. Rather than forcing those drivers to keep track of the interfaces that were added, this adds an iteration function to mac80211. As it is intended to be used from the interface add/remove callbacks, the iteration function may currently only be called under RTNL. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-09 01:57:29 +01:00
mac80211: add ieee80211_iterate_active_interfaces_rtnl() If it is needed to disconnect multiple virtual interfaces after (WoWLAN-) suspend, the most obvious approach would be to iterate all interfaces by calling ieee80211_iterate_active_interfaces() and then call ieee80211_resume_disconnect() for each one. This is what the iwlmvm driver does. Unfortunately, this causes a locking dependency from mac80211's iflist_mtx to the key_mtx. This is problematic as the former is intentionally never held while calling any driver operation to allow drivers to iterate with their own locks held. The key_mtx is held while installing a key into the driver though, so this new lock dependency means drivers implementing the logic above can no longer hold their own lock while iterating. To fix this, add a new ieee80211_iterate_active_interfaces_rtnl() function that iterates while the RTNL is already held. This is true during suspend/resume, so that then the locking dependency isn't introduced. While at it, also refactor the various interface iterators and keep only a single implementation called by the various cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 22:07:20 +02:00
mac80211: move IE parsing to util file Since IE parsing is required for the mlme and mesh code, it's not a static function anyway, and it's much better to have it in util rather than the overly large mlme.c Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-08 16:40:36 +02:00
mac80211: redefine usage of the mac80211 workqueue The mac80211 workqueue exists to enable mac80211 and drivers to queue their own work on a single threaded workqueue. mac80211 takes care to flush the workqueue during suspend but we never really had requirements on drivers for how they should use the workqueue in consideration for suspend. We extend mac80211 to document how the mac80211 workqueue should be used, how it should not be used and finally move raw access to the workqueue to mac80211 only. Drivers and mac80211 use helpers to queue work onto the mac80211 workqueue: * ieee80211_queue_work() * ieee80211_queue_delayed_work() These helpers will now warn if mac80211 already completed its suspend cycle and someone is trying to queue work. mac80211 flushes the mac80211 workqueue prior to suspend a few times, but we haven't taken the care to ensure drivers won't add more work after suspend. To help with this we add a warning when someone tries to add work and mac80211 already completed the suspend cycle. Drivers should ensure they cancel any work or delayed work in the mac80211 stop() callback. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 20:08:07 -04:00
mac80211: fix resume When mac80211 resumes, it currently first sets suspended to false so the driver can start doing things and we can receive frames. However, if we actually receive frames then it can end up starting some work which adds timers and then later runs into a BUG_ON in the timer code because it tries add_timer() on a pending timer. Fix this by keeping track of the resuming process by introducing a new variable 'resuming' which gets set to true early on instead of setting 'suspended' to false, and allow queueing work but not receiving frames while resuming. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-19 14:29:39 +01:00
mac80211: redefine usage of the mac80211 workqueue The mac80211 workqueue exists to enable mac80211 and drivers to queue their own work on a single threaded workqueue. mac80211 takes care to flush the workqueue during suspend but we never really had requirements on drivers for how they should use the workqueue in consideration for suspend. We extend mac80211 to document how the mac80211 workqueue should be used, how it should not be used and finally move raw access to the workqueue to mac80211 only. Drivers and mac80211 use helpers to queue work onto the mac80211 workqueue: * ieee80211_queue_work() * ieee80211_queue_delayed_work() These helpers will now warn if mac80211 already completed its suspend cycle and someone is trying to queue work. mac80211 flushes the mac80211 workqueue prior to suspend a few times, but we haven't taken the care to ensure drivers won't add more work after suspend. To help with this we add a warning when someone tries to add work and mac80211 already completed the suspend cycle. Drivers should ensure they cancel any work or delayed work in the mac80211 stop() callback. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 20:08:07 -04:00
mac80211: work around broken APs not including HT info There are some APs, notably 2G/3G/4G Wifi routers, specifically the "Onda PN51T", "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile branded device [1] that erroneously don't include all the needed information in (re)association response frames. Work around this by assuming the information is the same as it was in the beacon or probe response and using the data from there instead. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58881. [1] https://bbs.archlinux.org/viewtopic.php?pid=1277305 Note that this requires marking the first ieee802_11_parse_elems() argument const, otherwise we'd get a compiler warning. Cc: stable@vger.kernel.org Reported-and-tested-by: Michal Zajac <manwe@manwe.pl> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-28 10:54:03 +02:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: work around broken APs not including HT info There are some APs, notably 2G/3G/4G Wifi routers, specifically the "Onda PN51T", "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile branded device [1] that erroneously don't include all the needed information in (re)association response frames. Work around this by assuming the information is the same as it was in the beacon or probe response and using the data from there instead. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58881. [1] https://bbs.archlinux.org/viewtopic.php?pid=1277305 Note that this requires marking the first ieee802_11_parse_elems() argument const, otherwise we'd get a compiler warning. Cc: stable@vger.kernel.org Reported-and-tested-by: Michal Zajac <manwe@manwe.pl> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-28 10:54:03 +02:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
mac80211: parse VHT channel switch IEs VHT introduces multiple IEs that need to be parsed for a wide bandwidth channel switch. Two are (currently) needed in mac80211: * wide bandwidth channel switch element * channel switch wrapper element The former is contained in the latter for beacons and probe responses, but not for the spectrum management action frames so the IE parser needs a new argument to differentiate them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 14:54:16 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
mac80211: use blacklist for duplicate IE check Instead of the current whitelist which accepts duplicates only for the quiet and vendor IEs, use a blacklist of all IEs (that we currently parse) that can't be duplicated. This avoids detecting a beacon as corrupt in the future when new IEs are added that can be duplicated. Cc: stable@vger.kernel.org Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-24 14:19:53 +02:00
mac80211: support secondary channel offset in CSA Add support for the secondary channel offset IE in channel switch announcements. This is necessary for proper handling of CSA on HT access points. For this to work it is also necessary to convert everything here to use chandef structs instead of just channels. The driver updates aren't really correct though. In particular, the TI wl18xx driver update can't possibly be right since it just ignores the new channel width for lack of firmware API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-25 18:29:27 +01:00
mac80211: parse VHT channel switch IEs VHT introduces multiple IEs that need to be parsed for a wide bandwidth channel switch. Two are (currently) needed in mac80211: * wide bandwidth channel switch element * channel switch wrapper element The former is contained in the latter for beacons and probe responses, but not for the spectrum management action frames so the IE parser needs a new argument to differentiate them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 14:54:16 +01:00
mac80211: process the CSA frame for mesh accordingly Process the CSA frame according to the procedures define in IEEE Std 802.11-2012 section 10.9.8.4.3 as follow: * The mesh channel switch parameters element (MCSP) must be availabe. * If the MCSP's TTL is 1, drop the frame but still process the CSA. * If the MCSP's precedence value is less than or equal to the current precedence value, drop the frame and do not process the CSA. * The CSA frame is forwarded after TTL is decremented by 1 and the initiator field is set to 0. Transmit restrict field and others are maintained as is. * No beacon or probe response frame are handled here. Also, introduce the debug message used for mesh CSA purpose. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-14 19:08:27 -07:00
mac80211: parse VHT channel switch IEs VHT introduces multiple IEs that need to be parsed for a wide bandwidth channel switch. Two are (currently) needed in mac80211: * wide bandwidth channel switch element * channel switch wrapper element The former is contained in the latter for beacons and probe responses, but not for the spectrum management action frames so the IE parser needs a new argument to differentiate them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 14:54:16 +01:00
mac80211: use blacklist for duplicate IE check Instead of the current whitelist which accepts duplicates only for the quiet and vendor IEs, use a blacklist of all IEs (that we currently parse) that can't be duplicated. This avoids detecting a beacon as corrupt in the future when new IEs are added that can be duplicated. Cc: stable@vger.kernel.org Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-24 14:19:53 +02:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: check DSSS params IE length in parser It's always just one byte, so check for that and remove the length field from the parser struct. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-27 14:30:12 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: don't pick up WPA vendor IE There's no use for it, WPA is entirely handled in wpa_supplicant in userspace, so don't pick the IE. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:27:04 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: check ERP info IE length in parser It's always just one byte, so check for that and remove the length field from the parser struct. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-27 14:31:53 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: VHT peer STA caps Save the AP's VHT capabilities (in managed mode) and make them available to the driver in the station information. Unlike HT capabilities, they aren't restricted to the common capabilities, so drivers must be aware of their own capabilities. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> [fix endian conversion bug ...] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-10 11:33:04 +00:00
mac80211: handle operating mode notif in beacon/assoc response In beacons and association response frames an AP may include an operating mode notification element to advertise changes in the number of spatial streams it can receive. Handle this using the existing function that handles the action frame, but only handle NSS changes, not bandwidth changes which aren't allowed here. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-07 22:24:55 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: mesh power save basics Add routines to - maintain a PS mode for each peer and a non-peer PS mode - indicate own PS mode in transmitted frames - track neighbor STAs power modes - buffer frames when neighbors are in PS mode - add TIM and Awake Window IE to beacons - release frames in Mesh Peer Service Periods Add local_pm to sta_info to represent the link-specific power mode at this station towards the remote station. When a peer link is established, use the default power mode stored in mesh config. Update the PS status if the peering status of a neighbor changes. Maintain a mesh power mode for non-peer mesh STAs. Set the non-peer power mode to active mode during peering. Authenticated mesh peering is currently not working when either node is configured to be in power save mode. Indicate the current power mode in transmitted frames. Use QoS Nulls to indicate mesh power mode transitions. For performance reasons, calls to the function setting the frame flags are placed in HWMP routing routines, as there the STA pointer is already available. Add peer_pm to sta_info to represent the peer's link-specific power mode towards the local station. Add nonpeer_pm to represent the peer's power mode towards all non-peer stations. Track power modes based on received frames. Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS neighbor counter and group-addressed frame buffer). Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame buffering routines in the tx path. Update num_sta_ps to buffer and release group-addressed frames after DTIM beacons. Announce the awake window duration in beacons if in light or deep sleep mode towards any peer or non-peer. Create a TIM IE similarly to AP mode and add it to mesh beacons. Parse received Awake Window IEs and check TIM IEs for buffered frames. Release frames towards peers in mesh Peer Service Periods. Use the corresponding trigger frames and monitor the MPSP status. Append a QoS Null as trigger frame if neccessary to properly end the MPSP. Currently, in HT channels MPSPs behave imperfectly and show large delay spikes and frame losses. Signed-off-by: Marco Porsch <marco@cozybit.com> Signed-off-by: Ivan Bezyazychnyy <ivan.bezyazychnyy@gmail.com> Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-30 18:14:08 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: check size of channel switch IE when parsing The channel switch IE has a fixed size, so we can discard it in parsing if it's not the right size and use the right struct pointer. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-01 16:13:02 +02:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: support extended channel switch Support extended channel switch when the operating class is one of the global operating classes as defined in Annex E of 802.11-2012. If it isn't, disconnect from the AP instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 14:13:58 +01:00
mac80211: support secondary channel offset in CSA Add support for the secondary channel offset IE in channel switch announcements. This is necessary for proper handling of CSA on HT access points. For this to work it is also necessary to convert everything here to use chandef structs instead of just channels. The driver updates aren't really correct though. In particular, the TI wl18xx driver update can't possibly be right since it just ignores the new channel width for lack of firmware API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-25 18:29:27 +01:00
mac80211: process the CSA frame for mesh accordingly Process the CSA frame according to the procedures define in IEEE Std 802.11-2012 section 10.9.8.4.3 as follow: * The mesh channel switch parameters element (MCSP) must be availabe. * If the MCSP's TTL is 1, drop the frame but still process the CSA. * If the MCSP's precedence value is less than or equal to the current precedence value, drop the frame and do not process the CSA. * The CSA frame is forwarded after TTL is decremented by 1 and the initiator field is set to 0. Transmit restrict field and others are maintained as is. * No beacon or probe response frame are handled here. Also, introduce the debug message used for mesh CSA purpose. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-14 19:08:27 -07:00
mac80211: parse VHT channel switch IEs VHT introduces multiple IEs that need to be parsed for a wide bandwidth channel switch. Two are (currently) needed in mac80211: * wide bandwidth channel switch element * channel switch wrapper element The former is contained in the latter for beacons and probe responses, but not for the spectrum management action frames so the IE parser needs a new argument to differentiate them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 14:54:16 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: check power constraint IE size when parsing The power constraint IE is always a single byte so check the size when parsing instead of later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-05 13:07:00 +02:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: parse Timeout Interval Element using a struct Instead of open-coding the accesses and length check do the length check in the IE parser and assign a struct pointer for use in the remaining code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-27 14:38:07 +01:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
mac80211: use non-atomic bitmap operation for local variable For a local variable there's no need to use the atomic set_bit() operation, use __set_bit() instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-24 14:22:37 +02:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: Filter duplicate IE ids mac80211 is lenient with respect to reception of corrupted beacons. Even if the frame is corrupted as a whole, the available IE elements are still passed back and accepted, sometimes replacing legitimate data. It is unknown to what extent this "feature" is made use of, but it is clear that in some cases, this is detrimental. One such case is reported in http://crosbug.com/26832 where an AP corrupts its beacons but not its probe responses. One approach would be to completely reject frames with invaid data (for example, if the last tag extends beyond the end of the enclosing PDU). The enclosed approach is much more conservative: we simply prevent later IEs from overwriting the state from previous ones. This approach hopes that there might be some salient data in the IE stream before the corruption, and seeks to at least prevent that data from being overwritten. This approach will fix the case above. Further, we flag element structures that contain data we think might be corrupted, so that as we fill the mac80211 BSS structure, we try not to replace data from an un-corrupted probe response with that of a corrupted beacon, for example. Short of any statistics gathering in the various forms of AP breakage, it's not possible to ascertain the side effects of more stringent discarding of data. Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Sam Leffler <sleffler@chromium.org> Cc: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-23 17:59:53 -08:00
cfg80211/mac80211: Revert "move information element parsing logic to cfg80211" No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 16:54:50 +01:00
mac80211: combine QoS with other BSS changes When associating and particularly when disassociating there's no need to notify the driver about changes with multiple calls to bss_info_changed, we should combine the QoS enabling/disabling into the same call as otherwise the driver could get confused about QoS suddenly getting disabled while connected. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-02 15:56:59 +01:00
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: refuse TX queue configuration on non-QoS HW Drivers that don't support QoS also don't support setting up their ACs, catch that early. While at it, remove the input check since cfg80211 does it now. Also fix up the restart code to not try to set up the queues in this case. Finally also change the tx_conf array to have IEEE80211_NUM_ACS entries instead of # of queues since that's what it really needs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:25 +02:00
mac80211: configure 11b/g channel access rules for legacy APs For each EDCA TX queue change default settings (in STA mode) to conform old 802.11b/g channel access rules. This is needed for drivers that do not have QoS enable/disable "switch" (like rt2x00) to make them work properly with legacy APs. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-30 10:56:46 +02:00
mac80211: set default QoS values according to spec We've never really cared about the default QoS (WMM) values, but we really should if the AP doesn't send any. This patch makes mac80211 use the default values according to 802.11-2007, and additionally syncs the default values when we disassociate so whatever the last AP said gets "unconfigured". Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-07 16:16:24 +02:00
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: refuse TX queue configuration on non-QoS HW Drivers that don't support QoS also don't support setting up their ACs, catch that early. While at it, remove the input check since cfg80211 does it now. Also fix up the restart code to not try to set up the queues in this case. Finally also change the tx_conf array to have IEEE80211_NUM_ACS entries instead of # of queues since that's what it really needs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:25 +02:00
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: set default QoS values according to spec We've never really cared about the default QoS (WMM) values, but we really should if the AP doesn't send any. This patch makes mac80211 use the default values according to 802.11-2007, and additionally syncs the default values when we disassociate so whatever the last AP said gets "unconfigured". Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-07 16:16:24 +02:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: configure 11b/g channel access rules for legacy APs For each EDCA TX queue change default settings (in STA mode) to conform old 802.11b/g channel access rules. This is needed for drivers that do not have QoS enable/disable "switch" (like rt2x00) to make them work properly with legacy APs. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-30 10:56:46 +02:00
mac80211: improve default WMM parameter setting Move the default setting for WMM parameters outside the for loop to avoid redundant assignment multiple times. Signed-off-by: Fred Zhou <fred.zy@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-09 23:03:41 +08:00
mac80211: set default QoS values according to spec We've never really cared about the default QoS (WMM) values, but we really should if the AP doesn't send any. This patch makes mac80211 use the default values according to 802.11-2007, and additionally syncs the default values when we disassociate so whatever the last AP said gets "unconfigured". Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-07 16:16:24 +02:00
mac80211: improve default WMM parameter setting Move the default setting for WMM parameters outside the for loop to avoid redundant assignment multiple times. Signed-off-by: Fred Zhou <fred.zy@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-09 23:03:41 +08:00
mac80211: configure 11b/g channel access rules for legacy APs For each EDCA TX queue change default settings (in STA mode) to conform old 802.11b/g channel access rules. This is needed for drivers that do not have QoS enable/disable "switch" (like rt2x00) to make them work properly with legacy APs. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-30 10:56:46 +02:00
mac80211: set default QoS values according to spec We've never really cared about the default QoS (WMM) values, but we really should if the AP doesn't send any. This patch makes mac80211 use the default values according to 802.11-2007, and additionally syncs the default values when we disassociate so whatever the last AP said gets "unconfigured". Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-07 16:16:24 +02:00
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: add U-APSD client support Add Unscheduled Automatic Power-Save Delivery (U-APSD) client support. The idea is that the data frames from the client trigger AP to send the buffered frames with ACs which have U-APSD enabled. This decreases latency and makes it possible to save even more power. Driver needs to use IEEE80211_HW_UAPSD to enable the feature. The current implementation assumes that firmware takes care of the wakeup and hardware needing IEEE80211_HW_PS_NULLFUNC_STACK is not yet supported. Tested with wl1251 on a Nokia N900 and Cisco Aironet 1231G AP and running various test traffic with ping. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-12 10:42:31 +02:00
mac80211: refuse TX queue configuration on non-QoS HW Drivers that don't support QoS also don't support setting up their ACs, catch that early. While at it, remove the input check since cfg80211 does it now. Also fix up the restart code to not try to set up the queues in this case. Finally also change the tx_conf array to have IEEE80211_NUM_ACS entries instead of # of queues since that's what it really needs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:25 +02:00
mac80211: set default QoS values according to spec We've never really cared about the default QoS (WMM) values, but we really should if the AP doesn't send any. This patch makes mac80211 use the default values according to 802.11-2007, and additionally syncs the default values when we disassociate so whatever the last AP said gets "unconfigured". Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-07 16:16:24 +02:00
mac80211: explicitly disable/enable QoS Add interface to disable/enable QoS (aka WMM or WME). Currently drivers enable it explicitly when ->conf_tx method is called, and newer disable. Disabling is needed for some APs, which do not support QoS, such we should send QoS frames to them. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-29 12:18:34 +02:00
mac80211: support P2P Device abstraction After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-18 20:07:15 +02:00
mac80211: configure 11b/g channel access rules for legacy APs For each EDCA TX queue change default settings (in STA mode) to conform old 802.11b/g channel access rules. This is needed for drivers that do not have QoS enable/disable "switch" (like rt2x00) to make them work properly with legacy APs. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-30 10:56:46 +02:00
mac80211: combine QoS with other BSS changes When associating and particularly when disassociating there's no need to notify the driver about changes with multiple calls to bss_info_changed, we should combine the QoS enabling/disabling into the same call as otherwise the driver could get confused about QoS suddenly getting disabled while connected. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-02 15:56:59 +01:00
mac80211: Don't set per-BSS QoS for monitor interfaces In AP mode, there is no need to notify the driver about QoS changes for the monitor interface that is created. The warning in ieee80211_bss_info_change_notify() would be hit otherwise. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-23 10:47:11 +05:30
mac80211: initialise queue QoS parameters at hw start When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 12:56:01 +02:00
mac80211: move frame TX function The ieee80211_sta_tx function isn't MLME code any more, it's getting used by a lot of code. Move it to utils and rename it to ieee80211_tx_skb. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-09 15:07:09 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Take status code as parameter to ieee80211_send_auth Non-zero status code may be needed for Authentication frames, e.g., when using SAE. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-30 19:29:37 +03:00
mac80211: constify IE parsing Make all the parsed IE pointers const, and propagate the change to all the users etc. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:43:19 +01:00
mac80211: start auth/assoc timeout on frame status When sending authentication/association frames they might take a bit of time to go out because we may have to synchronise with the AP, in particular in the case where it's really a P2P GO. In this case the 200ms fixed timeout could potentially be too short if the beacon interval is relatively large. For drivers that report TX status we can do better. Instead of starting the timeout directly, start it only when the frame status arrives. Since then the frame was out on the air, we can wait shorter (the typical response time is supposed to be 30ms, wait 100ms.) Also, if the frame failed to be transmitted try again right away instead of waiting. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-29 15:02:27 +01:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
cfg80211: rework key operation This reworks the key operation in cfg80211, and now only allows, from userspace, configuring keys (via nl80211) after the connection has been established (in managed mode), the IBSS been joined (in IBSS mode), at any time (in AP[_VLAN] modes) or never for all the other modes. In order to do shared key authentication correctly, it is now possible to give a WEP key to the AUTH command. To configure static WEP keys, these are given to the CONNECT or IBSS_JOIN command directly, for a userspace SME it is assumed it will configure it properly after the connection has been established. Since mac80211 used to check the default key in IBSS mode to see whether or not the network is protected, it needs an update in that area, as well as an update to make use of the WEP key passed to auth() for shared key authentication. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 14:22:54 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: use exact-size allocation for authentication frame The authentication frame has a fixied size of 30 bytes (including header, algo num, trans seq num, and status) followed by a variable challenge text. Allocate using exact size, instead of over-allocation by sizeof(ieee80211_mgmt). Signed-off-by: Fred Zhou <fred.zy@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-24 10:33:01 +08:00
mac80211: Remove unnecessary OOM logging messages Removing unnecessary messages saves code and text. Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-29 14:17:31 -07:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Remove unnecessary OOM logging messages Removing unnecessary messages saves code and text. Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-29 14:17:31 -07:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: In IBSS the DA field of auth frames is different from BSSID In case of authentication frame exchange between two IBSS STAs, the DA field must contain the destinatioin address (instead of the BSSID). Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-09 19:43:06 +01:00
mac80211: reduce reliance on netdev For bluetooth 3, we will most likely not have a netdev for a virtual interface (sdata), so prepare for that by reducing the reliance on having a netdev. This patch moves the name and address fields into the sdata struct and uses them from there all over. Some work is needed to keep them sync'ed, but that's not a lot of work and in slow paths anyway. In doing so, this also reduces the number of pointer dereferences in many places, because of things like sdata->dev->dev_addr becoming sdata->vif.addr. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-25 17:46:19 +01:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Take status code as parameter to ieee80211_send_auth Non-zero status code may be needed for Authentication frames, e.g., when using SAE. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-30 19:29:37 +03:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
cfg80211: rework key operation This reworks the key operation in cfg80211, and now only allows, from userspace, configuring keys (via nl80211) after the connection has been established (in managed mode), the IBSS been joined (in IBSS mode), at any time (in AP[_VLAN] modes) or never for all the other modes. In order to do shared key authentication correctly, it is now possible to give a WEP key to the AUTH command. To configure static WEP keys, these are given to the CONNECT or IBSS_JOIN command directly, for a userspace SME it is assumed it will configure it properly after the connection has been established. Since mac80211 used to check the default key in IBSS mode to see whether or not the network is protected, it needs an update in that area, as well as an update to make use of the WEP key passed to auth() for shared key authentication. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 14:22:54 +02:00
mac80211: start auth/assoc timeout on frame status When sending authentication/association frames they might take a bit of time to go out because we may have to synchronise with the AP, in particular in the case where it's really a P2P GO. In this case the 200ms fixed timeout could potentially be too short if the beacon interval is relatively large. For drivers that report TX status we can do better. Instead of starting the timeout directly, start it only when the frame status arrives. Since then the frame was out on the air, we can wait shorter (the typical response time is supposed to be 30ms, wait 100ms.) Also, if the frame failed to be transmitted try again right away instead of waiting. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-29 15:02:27 +01:00
mac80211: remove encrypt parameter from ieee80211_tx_skb Since the flags moved into skb->cb, there's no longer a need to have the encrypt bool passed into the function, anyone who requires it set to 0 (false) can just set the flag directly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:05 +01:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: move ieee80211_send_deauth_disassoc outside mlme code Move ieee80211_send_deauth_disassoc() to util.c to make it available for the rest of the mac80211 code. Signed-off-by: Antonio Quartulli <ordex@autistici.org> [reword commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-07 13:28:52 +02:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz IEEE Std 802.11k-2008 added DS Parameter Set information element into Probe Request frames as an optional information on 2.4 GHz band (and mandatory, if radio measurements are enabled). This allows APs to filter out Probe Request frames that may be received from neighboring overlapping channels and by doing so, reduce the number of unnecessary frames in the air. Make mac80211 add this IE into Probe Request frames whenever the channel is known (i.e., whenever hwscan is not used). Signed-off-by: Jouni Malinen <j@w1.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:37:51 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: split hardware scan by band There's currently a very odd bug in mac80211 -- a hardware scan that is done while the hardware is really operating on 2.4 GHz will include CCK rates in the probe request frame, even on 5 GHz (if the driver uses the mac80211 IEs). Vice versa, if the hardware is operating on 5 GHz the 2.4 GHz probe requests will not include CCK rates even though they should. Fix this by splitting up cfg80211 scan requests by band -- recalculating the IEs every time -- and requesting only per-band scans from the driver. Apparently this bug hasn't been a problem yet, but it is imaginable that some older access points get confused if confronted with such behaviour. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 20:59:55 +01:00
mac80211: fix invalid band deref building preq IEs The function building probe-request IEs does not validate the band is supported before dereferencing it. This can result in a panic when all bands are traversed, as done during sched-scan start. Warn when this happens and return an empty probe request. Also fix sched-scan to not waste memory on unsupported bands. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-09 19:57:28 +03:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: Filter ProbeReq SuppRates based on TX rate mask If the TX rate set has been masked, the removed rates can also be removed from the Supported Rates and Extended Supported Rates IEs in Probe Request frames. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:36:10 +03:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz IEEE Std 802.11k-2008 added DS Parameter Set information element into Probe Request frames as an optional information on 2.4 GHz band (and mandatory, if radio measurements are enabled). This allows APs to filter out Probe Request frames that may be received from neighboring overlapping channels and by doing so, reduce the number of unnecessary frames in the air. Make mac80211 add this IE into Probe Request frames whenever the channel is known (i.e., whenever hwscan is not used). Signed-off-by: Jouni Malinen <j@w1.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:37:51 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz IEEE Std 802.11k-2008 added DS Parameter Set information element into Probe Request frames as an optional information on 2.4 GHz band (and mandatory, if radio measurements are enabled). This allows APs to filter out Probe Request frames that may be received from neighboring overlapping channels and by doing so, reduce the number of unnecessary frames in the air. Make mac80211 add this IE into Probe Request frames whenever the channel is known (i.e., whenever hwscan is not used). Signed-off-by: Jouni Malinen <j@w1.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:37:51 +03:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: Support ht-cap over-rides. This implements ht-cap over-rides for mac80211 drivers. HT may be disabled, making an /a/b/g/n station act like an a/b/g station. HT40 may be disabled forcing the station to be HT20 even if the AP and local hardware support HT40. MAX-AMSDU may be disabled. AMPDU-Density may be increased. AMPDU-Factor may be decreased. This has been successfully tested with ath9k using patched wpa_supplicant and iw. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 11:32:00 -08:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: include HT capabilities in probe request Include the HT capabilities in the probe request frame. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-31 12:12:07 +02:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: include VHT capability IE in probe requests Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 11:25:12 +00:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: include VHT capability IE in probe requests Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 11:25:12 +00:00
mac80211: make ieee80211_build_preq_ies safer Instead of assuming 200 bytes are always enough for all the IEs we add, give the length of the buffer to the function and warn instead of overrunning. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 12:45:18 +01:00
mac80211: pass all probe request IEs to driver Instead of just passing the cfg80211-requested IEs, pass the locally generated ones as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-01 11:58:36 +02:00
mac80211: Add function to get probe request template for current AP Chipsets with hardware based connection monitoring need to autonomically send directed probe-request frames to the AP (in the event of beacon loss, for example.) For the hardware to be able to do this, it requires a template for the frame to transmit to the AP, filled in with the BSSID and SSID of the AP, but also the supported rate IE's. This patch adds a function to mac80211, which allows the hardware driver to fetch this template after association, so it can be configured to the hardware. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-11 08:50:18 +02:00
mac80211: implement scan supported rates Scanning currently uses the TX rate mask to restrict the rate set, which is bogus. Make it use the new set of rates from userspace. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-18 18:08:36 +02:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: Add function to get probe request template for current AP Chipsets with hardware based connection monitoring need to autonomically send directed probe-request frames to the AP (in the event of beacon loss, for example.) For the hardware to be able to do this, it requires a template for the frame to transmit to the AP, filled in with the BSSID and SSID of the AP, but also the supported rate IE's. This patch adds a function to mac80211, which allows the hardware driver to fetch this template after association, so it can be configured to the hardware. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-11 08:50:18 +02:00
mac80211: Drop DS Channel PARAM in directed probe Do not send DS Channel parameter for directed probe requests in order to maximize the chance that we get a response. Some badly-behaved APs don't respond when this parameter is included. Signed-off-by: Paul Stewart <pstew@chromium.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-23 09:00:11 -08:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: remove probe response temporary buffer allocation Instead of allocating a temporary buffer to build IEs build them right into the SKB. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 13:00:10 +01:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Drop DS Channel PARAM in directed probe Do not send DS Channel parameter for directed probe requests in order to maximize the chance that we get a response. Some badly-behaved APs don't respond when this parameter is included. Signed-off-by: Paul Stewart <pstew@chromium.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-23 09:00:11 -08:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Drop DS Channel PARAM in directed probe Do not send DS Channel parameter for directed probe requests in order to maximize the chance that we get a response. Some badly-behaved APs don't respond when this parameter is included. Signed-off-by: Paul Stewart <pstew@chromium.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-23 09:00:11 -08:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Drop DS Channel PARAM in directed probe Do not send DS Channel parameter for directed probe requests in order to maximize the chance that we get a response. Some badly-behaved APs don't respond when this parameter is included. Signed-off-by: Paul Stewart <pstew@chromium.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-23 09:00:11 -08:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz IEEE Std 802.11k-2008 added DS Parameter Set information element into Probe Request frames as an optional information on 2.4 GHz band (and mandatory, if radio measurements are enabled). This allows APs to filter out Probe Request frames that may be received from neighboring overlapping channels and by doing so, reduce the number of unnecessary frames in the air. Make mac80211 add this IE into Probe Request frames whenever the channel is known (i.e., whenever hwscan is not used). Signed-off-by: Jouni Malinen <j@w1.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-28 19:37:51 +03:00
mac80211: use Probe Request template when sending a direct scan As mac80211 now has a separate function for creating Probe Request templates, better to use it when sending direct Probe Requests to an AP. Only the bssid needs to be updated in the template before sending it. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 20:16:44 +02:00
mac80211: remove probe response temporary buffer allocation Instead of allocating a temporary buffer to build IEs build them right into the SKB. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 13:00:10 +01:00
mac80211: fix bug in ieee80211_build_probe_req ieee80211_probereq_get() can return NULL in which case we should clean up & return NULL in ieee80211_build_probe_req() as well. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 13:04:41 +01:00
mac80211: remove probe response temporary buffer allocation Instead of allocating a temporary buffer to build IEs build them right into the SKB. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 13:00:10 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: remove probe response temporary buffer allocation Instead of allocating a temporary buffer to build IEs build them right into the SKB. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-29 13:00:10 +01:00
mac80211: use Probe Request template when sending a direct scan As mac80211 now has a separate function for creating Probe Request templates, better to use it when sending direct Probe Requests to an AP. Only the bssid needs to be updated in the template before sending it. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 20:16:44 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: use Probe Request template when sending a direct scan As mac80211 now has a separate function for creating Probe Request templates, better to use it when sending direct Probe Requests to an AP. Only the bssid needs to be updated in the template before sending it. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-05 20:16:44 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: remove encrypt parameter from ieee80211_tx_skb Since the flags moved into skb->cb, there's no longer a need to have the encrypt bool passed into the function, anyone who requires it set to 0 (false) can just set the flag directly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:05 +01:00
mac80211: fix bug in ieee80211_build_probe_req ieee80211_probereq_get() can return NULL in which case we should clean up & return NULL in ieee80211_build_probe_req() as well. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 13:04:41 +01:00
mac80211: Add function to get probe request template for current AP Chipsets with hardware based connection monitoring need to autonomically send directed probe-request frames to the AP (in the event of beacon loss, for example.) For the hardware to be able to do this, it requires a template for the frame to transmit to the AP, filled in with the BSSID and SSID of the AP, but also the supported rate IE's. This patch adds a function to mac80211, which allows the hardware driver to fetch this template after association, so it can be configured to the hardware. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-11 08:50:18 +02:00
mac80211: Drop DS Channel PARAM in directed probe Do not send DS Channel parameter for directed probe requests in order to maximize the chance that we get a response. Some badly-behaved APs don't respond when this parameter is included. Signed-off-by: Paul Stewart <pstew@chromium.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-23 09:00:11 -08:00
mac80211: start auth/assoc timeout on frame status When sending authentication/association frames they might take a bit of time to go out because we may have to synchronise with the AP, in particular in the case where it's really a P2P GO. In this case the 200ms fixed timeout could potentially be too short if the beacon interval is relatively large. For drivers that report TX status we can do better. Instead of starting the timeout directly, start it only when the frame status arrives. Since then the frame was out on the air, we can wait shorter (the typical response time is supposed to be 30ms, wait 100ms.) Also, if the frame failed to be transmitted try again right away instead of waiting. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-29 15:02:27 +01:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: Add function to get probe request template for current AP Chipsets with hardware based connection monitoring need to autonomically send directed probe-request frames to the AP (in the event of beacon loss, for example.) For the hardware to be able to do this, it requires a template for the frame to transmit to the AP, filled in with the BSSID and SSID of the AP, but also the supported rate IE's. This patch adds a function to mac80211, which allows the hardware driver to fetch this template after association, so it can be configured to the hardware. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-11 08:50:18 +02:00
mac80211: pass channel to ieee80211_send_probe_req In multi-channel scenarios, the channel that we will transmit a probe request on isn't always the current channel (which will be NULL anyway) but will instead be the channel that the AP is on. Pass the channel to the ieee80211_send_probe_req() function so it can be used in the different scenarios. The scan code continues to pass the current channel, of course. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-30 12:26:34 +02:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: implement scan supported rates Scanning currently uses the TX rate mask to restrict the rate set, which is bogus. Make it use the new set of rates from userspace. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-18 18:08:36 +02:00
mac80211: Send the management frame at requested rate Whenever the scan request or tx_mgmt is requesting not to use CCK rate for managemet frames through NL80211_ATTR_TX_NO_CCK_RATE attribute, then mac80211 should select appropriate least non-CCK rate. This could help to send P2P probes and P2P action frames at non 11b rates without diabling 11b rates globally. Cc: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-25 14:53:31 +05:30
mac80211: start auth/assoc timeout on frame status When sending authentication/association frames they might take a bit of time to go out because we may have to synchronise with the AP, in particular in the case where it's really a P2P GO. In this case the 200ms fixed timeout could potentially be too short if the beacon interval is relatively large. For drivers that report TX status we can do better. Instead of starting the timeout directly, start it only when the frame status arrives. Since then the frame was out on the air, we can wait shorter (the typical response time is supposed to be 30ms, wait 100ms.) Also, if the frame failed to be transmitted try again right away instead of waiting. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-29 15:02:27 +01:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: Send the management frame at requested rate Whenever the scan request or tx_mgmt is requesting not to use CCK rate for managemet frames through NL80211_ATTR_TX_NO_CCK_RATE attribute, then mac80211 should select appropriate least non-CCK rate. This could help to send P2P probes and P2P action frames at non 11b rates without diabling 11b rates globally. Cc: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-25 14:53:31 +05:30
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Modify sta_get_rates to give basic rates Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:21 -07:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: remove hw.conf.channel usage where possible Removes hw.conf.channel usage from the following functions: * ieee80211_mandatory_rates * ieee80211_sta_get_rates * ieee80211_frame_duration * ieee80211_rts_duration * ieee80211_ctstoself_duration This is in preparation for multi-channel operation. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-11 08:47:56 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Modify sta_get_rates to give basic rates Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:21 -07:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Modify sta_get_rates to give basic rates Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:21 -07:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: Modify sta_get_rates to give basic rates Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:21 -07:00
mac80211: split IBSS/managed code This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-15 12:44:28 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: fix configure_filter invocation after stop Since configure_filter can sleep now, any multicast configuration needed to be postponed to a work struct. This, however, lead to a problem that we could queue the work, stop the device and then afterwards invoke configure_filter which may lead to driver hangs and is a bug. To fix this, we can just cancel the filter work since it's unnecessary to do after stopping the hw. Since there are various places that call drv_stop, and two of them do very similar things, the code for them can be put into a shared function at the same time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Tested-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 20:02:20 +02:00
mac80211: selective throughput LED trigger active The throughput LED trigger was always active when the radio was enabled. In most cases that's likely the desired behaviour, but iwlwifi requires it to be only active when one of the virtual interfaces is actually "connected" in some way. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-30 08:59:23 +01:00
mac80211: fix configure_filter invocation after stop Since configure_filter can sleep now, any multicast configuration needed to be postponed to a work struct. This, however, lead to a problem that we could queue the work, stop the device and then afterwards invoke configure_filter which may lead to driver hangs and is a bug. To fix this, we can just cancel the filter work since it's unnecessary to do after stopping the hw. Since there are various places that call drv_stop, and two of them do very similar things, the code for them can be put into a shared function at the same time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Tested-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 20:02:20 +02:00
mac80211: flush workqueue before calling driver ->stop() method Since commit "mwl8k: handle station database update for AP's sta entry via ->sta_notify()", mwl8k every now and then gets a command timeout when ifconfig'ing a STA interface down. This turns out to be due to mwl8k_stop() being called while the work queue item that was scheduled by mwl8k_sta_notify() to remove the STA entry for the associated AP is still queued, and the former disables interrupts so that when the latter eventually runs, a command completion interrupt is never seen. Fix this by changing ieee80211_stop_device() so that the workqueue is flushed before drv_stop() is called, instead of doing it the other way around as is done now. (As ->stop() is allowed to sleep, there isn't any reason for drivers to queue work from within it.) Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-10 14:07:53 +01:00
mac80211: fix configure_filter invocation after stop Since configure_filter can sleep now, any multicast configuration needed to be postponed to a work struct. This, however, lead to a problem that we could queue the work, stop the device and then afterwards invoke configure_filter which may lead to driver hangs and is a bug. To fix this, we can just cancel the filter work since it's unnecessary to do after stopping the hw. Since there are various places that call drv_stop, and two of them do very similar things, the code for them can be put into a shared function at the same time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Tested-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 20:02:20 +02:00
mac80211: merge reconfig assign chanctx code Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-28 10:55:30 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: reconfigure tx on device reconfiguration Add tx_conf array to save the current tx queues configuration, and reconfig it on resume (ieee80211_reconfig). On resume, the driver is being reconfigured. Without reconfiguring the tx queues as well, the driver might configure the device to use wrong ac params (e.g. ps-poll instead of uapsd). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 20:29:42 +03:00
mac80211: fix resume from WoWLAN My commit 529ba6e9313dbe60dab7e72c6fdf647a012e9f5b ("mac80211: clean up association better in suspend") introduced a bug when resuming from WoWLAN when a device reset is desired. This case must not use the suspend_bss_conf as it hasn't been stored. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-10 23:55:33 +01:00
mac80211: call restart complete at wowlan resume time When the driver's resume function can't completely restore the configuration in the device, it returns 1 from the callback which will be treated like a HW restart request, but done directly. In this case, also call the driver's restart_complete() function so it can finish the reconfiguration there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-11 00:28:01 +01:00
mac80211: fix resume When mac80211 resumes, it currently first sets suspended to false so the driver can start doing things and we can receive frames. However, if we actually receive frames then it can end up starting some work which adds timers and then later runs into a BUG_ON in the timer code because it tries add_timer() on a pending timer. Fix this by keeping track of the resuming process by introducing a new variable 'resuming' which gets set to true early on instead of setting 'suspended' to false, and allow queueing work but not receiving frames while resuming. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-19 14:29:39 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: add basic support for WoWLAN This adds basic support for the new WoWLAN configuration in mac80211. The behaviour is completely offloaded to the driver though, with two new callbacks (suspend/resume). Options for the driver include a complete reconfiguration after wakeup, and exposing all the triggers it wants to support. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-04 15:37:29 +02:00
mac80211: add APIs to allow keeping connections after WoWLAN In order to be able to (securely) keep connections alive after the system was suspended for WoWLAN, we need some additional APIs. We already have API (ieee80211_gtk_rekey_notify) to tell wpa_supplicant about the new replay counter if GTK rekeying was done by the device while the host was asleep, but that's not sufficient. If GTK rekeying wasn't done, we need to tell the host about sequence counters for the GTK (and PTK regardless of rekeying) that was used while asleep, add ieee80211_set_key_rx_seq() for that. If GTK rekeying was done, then we need to be able to disable the old keys (with ieee80211_remove_key()) and allocate the new GTK key(s) in mac80211 (with ieee80211_gtk_rekey_add()). If protocol offload (e.g. ARP) is implemented, then also the TX sequence counter for the PTK must be updated, using the new ieee80211_set_key_tx_seq() function. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-07 20:11:55 +02:00
mac80211: add basic support for WoWLAN This adds basic support for the new WoWLAN configuration in mac80211. The behaviour is completely offloaded to the driver though, with two new callbacks (suspend/resume). Options for the driver include a complete reconfiguration after wakeup, and exposing all the triggers it wants to support. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-04 15:37:29 +02:00
mac80211: fix resume from WoWLAN My commit 529ba6e9313dbe60dab7e72c6fdf647a012e9f5b ("mac80211: clean up association better in suspend") introduced a bug when resuming from WoWLAN when a device reset is desired. This case must not use the suspend_bss_conf as it hasn't been stored. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-10 23:55:33 +01:00
mac80211: add basic support for WoWLAN This adds basic support for the new WoWLAN configuration in mac80211. The behaviour is completely offloaded to the driver though, with two new callbacks (suspend/resume). Options for the driver include a complete reconfiguration after wakeup, and exposing all the triggers it wants to support. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-04 15:37:29 +02:00
mac80211: be more careful in suspend/resume When suspending with all netdevs down, the device is stopped but we still call a number of driver callbacks that the driver might not expect. The same happens during resume, we might call a few callbacks without starting the driver. Fix this by checking open_count around more things and exiting quickly if it is 0. Also, while at this I noticed that the coverage class isn't reprogrammed after resume, so add that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 16:48:54 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: be more careful in suspend/resume When suspending with all netdevs down, the device is stopped but we still call a number of driver callbacks that the driver might not expect. The same happens during resume, we might call a few callbacks without starting the driver. Fix this by checking open_count around more things and exiting quickly if it is 0. Also, while at this I noticed that the coverage class isn't reprogrammed after resume, so add that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 16:48:54 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: Call driver commands after drv_start in mac80211 restart code Ideally, hardware/firmware initialization is complete after the drv_start routine. In mac80211 restart code (ieee80211_reconfig), defer calling the driver commands i.e. setup fragmentation threshold, rts threshold and coverage class till drv_start routine is called. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> v2: Removed extra blank line added. Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-30 16:34:25 +05:30
mac80211: be more careful in suspend/resume When suspending with all netdevs down, the device is stopped but we still call a number of driver callbacks that the driver might not expect. The same happens during resume, we might call a few callbacks without starting the driver. Fix this by checking open_count around more things and exiting quickly if it is 0. Also, while at this I noticed that the coverage class isn't reprogrammed after resume, so add that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 16:48:54 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: add explicit monitor interface if needed The queue mapping redesign that I'm planning to do will break pure injection unless we handle monitor interfaces explicitly. One possible option would be to have the driver tell mac80211 about monitor mode queues etc., but that would duplicate the API since we already need to have queue assignments handled per virtual interface. So in order to solve this, have a virtual monitor interface that is added whenever all active vifs are monitors. We could also use the state of one of the monitor interfaces, but managing that would be complicated, so allocate separate state. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 14:35:57 +02:00
mac80211: destroy virtual monitor interface across suspend It has to be removed from the driver, but completely destroying it helps handle unplug of a device during suspend since then the channel context handling etc. doesn't have to happen later when it's removed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-27 23:20:27 +01:00
mac80211: add explicit monitor interface if needed The queue mapping redesign that I'm planning to do will break pure injection unless we handle monitor interfaces explicitly. One possible option would be to have the driver tell mac80211 about monitor mode queues etc., but that would duplicate the API since we already need to have queue assignments handled per virtual interface. So in order to solve this, have a virtual monitor interface that is added whenever all active vifs are monitors. We could also use the state of one of the monitor interfaces, but managing that would be complicated, so allocate separate state. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-03 14:35:57 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: remove struct ieee80211_if_init_conf All its members (vif, mac_addr, type) are now available in the vif struct directly, so we can pass that instead of the conf struct. I generated this patch (except the mac80211 and header file changes) with this semantic patch: @@ identifier conf, fn, hw; type tp; @@ tp fn(struct ieee80211_hw *hw, -struct ieee80211_if_init_conf *conf) +struct ieee80211_vif *vif) { <... ( -conf->type +vif->type | -conf->mac_addr +vif->addr | -conf->vif +vif ) ...> } Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:45 +01:00
mac80211: verify virtual interfaces in driver API The driver is never informed about monitor or AP_VLAN interfaces, so whenever we pass those to it later this is a bug. Verify we don't as there are some cases where this could happen. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-03 14:41:13 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: check add_chanctx callback before use in ieee80211_reconfig During testing our mac80211 driver a fatal error occurred which was signalled to mac80211. Upon performing the reconfiguration of the device a WARN_ON was triggered. This warning checked the return value of drv_add_chanctx(). However, this returns -EOPNOTSUPP when the driver does not provide the callback. As the callback is optional better check it is defined before calling drv_add_chanctx(). Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-19 12:01:05 +01:00
mac80211: use channel contexts Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-26 17:24:39 +02:00
mac80211: reassign channel contexts before stations Since channel contexts are usually present before stations can be added to an interface, reassign before stations them in reconfiguration as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-07 12:40:41 +01:00
mac80211: merge reconfig assign chanctx code Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-28 10:55:30 +01:00
mac80211: reassign channel contexts before stations Since channel contexts are usually present before stations can be added to an interface, reassign before stations them in reconfiguration as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-07 12:40:41 +01:00
mac80211: fix channel context suspend/reconfig handling Sujith reported warnings with suspend/resume due to channel contexts. When I looked into it, I realised that the code was completely broken as it unassigned the channel contexts when suspending, which actually means they are destroyed. Eliad Peller then pointed out that we also need to remove the channel contexts from the driver. When I looked into this, I also noticed that the code isn't handling the virtual monitor interface correctly (if it exists.) Fix this by calling just the driver methods (if they are implemented) instead of using the channel context management code. Also add reconfiguration for the virtual monitor interface. Reported-by: Sujith Manoharan <sujith@msujith.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-19 22:19:08 +01:00
mac80211: merge reconfig assign chanctx code Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-28 10:55:30 +01:00
mac80211: fix channel context suspend/reconfig handling Sujith reported warnings with suspend/resume due to channel contexts. When I looked into it, I realised that the code was completely broken as it unassigned the channel contexts when suspending, which actually means they are destroyed. Eliad Peller then pointed out that we also need to remove the channel contexts from the driver. When I looked into this, I also noticed that the code isn't handling the virtual monitor interface correctly (if it exists.) Fix this by calling just the driver methods (if they are implemented) instead of using the channel context management code. Also add reconfiguration for the virtual monitor interface. Reported-by: Sujith Manoharan <sujith@msujith.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-19 22:19:08 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: allow station add/remove to sleep Many drivers would like to sleep during station addition and removal, and currently have a high complexity there from not being able to. This introduces two new callbacks sta_add() and sta_remove() that drivers can implement instead of using sta_notify() and that can sleep, and the new sta_add() callback is also allowed to fail. The reason we didn't do this previously is that the IBSS code wants to insert stations from the RX path, which is a tasklet, so cannot sleep. This patch will keep the station allocation in that path, but moves adding the station to the driver out of line. Since the addition can now fail, we can have IBSS peer structs the driver rejected -- in that case we still talk to the station but never tell the driver about it in the control.sta pointer. If there will ever be a driver that has a low limit on the number of stations and that cannot talk to any stations that are not known to it, we need to do come up with a new strategy of handling larger IBSSs, maybe quicker expiry or rejecting peers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-03 13:59:58 +01:00
mac80211: add stations after AP start on reconfig When performing a HW restart for an AP mode interface, add stations back only after the AP is beaconing. This mimics the normal flow of STA addition on AP. Some devices (wlcore) do not support adding stations before beaconing, so this has the added benefit of making recovery work for them. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-03 23:31:56 +03:00
mac80211: add sta_state callback (based on Eliad's patch) Add a callback to notify the low-level driver whenever the state of a station changes. The driver is only notified when the station is actually in the mac80211 hash table, not for pre-insert state transitions. To allow the driver to replace sta_add/remove calls with this, call extra transitions with the NOTEXIST state. This callback can fail, so we need to be careful in handling it when a station is inserted, particularly in the IBSS case where we still keep the station entry around for mac80211 purposes. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-20 13:55:21 +01:00
mac80211: add stations after AP start on reconfig When performing a HW restart for an AP mode interface, add stations back only after the AP is beaconing. This mimics the normal flow of STA addition on AP. Some devices (wlcore) do not support adding stations before beaconing, so this has the added benefit of making recovery work for them. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-03 23:31:56 +03:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: allow station add/remove to sleep Many drivers would like to sleep during station addition and removal, and currently have a high complexity there from not being able to. This introduces two new callbacks sta_add() and sta_remove() that drivers can implement instead of using sta_notify() and that can sleep, and the new sta_add() callback is also allowed to fail. The reason we didn't do this previously is that the IBSS code wants to insert stations from the RX path, which is a tasklet, so cannot sleep. This patch will keep the station allocation in that path, but moves adding the station to the driver out of line. Since the addition can now fail, we can have IBSS peer structs the driver rejected -- in that case we still talk to the station but never tell the driver about it in the control.sta pointer. If there will ever be a driver that has a low limit on the number of stations and that cannot talk to any stations that are not known to it, we need to do come up with a new strategy of handling larger IBSSs, maybe quicker expiry or rejecting peers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-03 13:59:58 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: reconfigure tx on device reconfiguration Add tx_conf array to save the current tx queues configuration, and reconfig it on resume (ieee80211_reconfig). On resume, the driver is being reconfigured. Without reconfiguring the tx queues as well, the driver might configure the device to use wrong ac params (e.g. ps-poll instead of uapsd). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 20:29:42 +03:00
mac80211: refuse TX queue configuration on non-QoS HW Drivers that don't support QoS also don't support setting up their ACs, catch that early. While at it, remove the input check since cfg80211 does it now. Also fix up the restart code to not try to set up the queues in this case. Finally also change the tx_conf array to have IEEE80211_NUM_ACS entries instead of # of queues since that's what it really needs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:25 +02:00
mac80211: save tx params per sdata save and configure tx param per sdata, rather than per hardware. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-25 20:06:54 +03:00
mac80211: refuse TX queue configuration on non-QoS HW Drivers that don't support QoS also don't support setting up their ACs, catch that early. While at it, remove the input check since cfg80211 does it now. Also fix up the restart code to not try to set up the queues in this case. Finally also change the tx_conf array to have IEEE80211_NUM_ACS entries instead of # of queues since that's what it really needs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28 11:04:25 +02:00
mac80211: save tx params per sdata save and configure tx param per sdata, rather than per hardware. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-25 20:06:54 +03:00
mac80211: reconfigure tx on device reconfiguration Add tx_conf array to save the current tx queues configuration, and reconfig it on resume (ieee80211_reconfig). On resume, the driver is being reconfigured. Without reconfiguring the tx queues as well, the driver might configure the device to use wrong ac params (e.g. ps-poll instead of uapsd). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-14 20:29:42 +03:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
mac80211: add ieee80211_sdata_running Instead of always using netif_running(sdata->dev) use ieee80211_sdata_running(sdata) now which is just an inline containing netif_running() for now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:31 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
mac80211: move QoS-enable to BSS info Ever since commit e1b3ec1a2a336c328c336cfa5485a5f0484cc90d Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Mon Mar 29 12:18:34 2010 +0200 mac80211: explicitly disable/enable QoS mac80211 is telling drivers, in particular iwlwifi, whether QoS is enabled or not. However, this is only relevant for station mode, since only then will any device send nullfunc frames and need to know whether they should be QoS frames or not. In other modes, there are (currently) no frames the device is supposed to send. When you now consider virtual interfaces, it becomes apparent that the current mechanism is inadequate since it enables/disables QoS on a global scale, where for nullfunc frames it has to be on a per-interface scale. Due to the above considerations, we can change the way mac80211 advertises the QoS state to drivers to only ever advertise it as "off" in station mode, and make it a per-BSS setting. Tested-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-19 16:39:04 +02:00
mac80211: set BSS_CHANGED_IDLE on vif reconfig The vif might be busy while reconfiguring (e.g. associated), so indicate BSS_CHANGED_IDLE as well. Reported-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-01 15:16:55 +02:00
mac80211: handle TX power per virtual interface Even before channel contexts/multi-channel, having a single global TX power limit was already problematic, in particular if two managed interfaces connected to two APs with different power constraints. The channel context introduction completely broke this though and in fact I had disabled TX power configuration there for drivers using channel contexts. Change everything to track TX power per interface so that different user settings and different channel maxima are treated correctly. Also continue tracking the global TX power though for compatibility with applications that attempt to configure the wiphy's TX power globally. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-24 10:59:25 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: configure BSS_CHANGED_ARP_FILTER on reconfiguration Configure arp filtering on sta reconfiguration. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-12 14:10:49 +02:00
mac80211: add PS flag to bss_conf Currently, ps mode is indicated per device (rather than per interface), which doesn't make a lot of sense. Moreover, there are subtle bugs caused by the inability to indicate ps change along with other changes (e.g. when the AP deauth us, we'd like to indicate CHANGED_PS | CHANGED_ASSOC, as changing PS before notifying about disassociation will result in null-packets being sent (if IEEE80211_HW_SUPPORTS_DYNAMIC_PS) while the sta is already disconnected.) Keep the current per-device notifications, and add parallel per-vif notifications. In order to keep it simple, the per-device ps and the per-vif ps are orthogonal - the per-vif ps configuration is determined only by the user configuration (enable/disable) and the connection state, and is not affected by other vifs state and (temporary) dynamic_ps/offchannel operations (unlike per-device ps). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-27 12:33:22 +03:00
mac80211: inform the driver about update of dtim_period Currently, when the driver requires the DTIM period, mac80211 will wait to hear a beacon before association. This behavior is suboptimal since some drivers may be able to deal with knowing the DTIM period after the association, if they get it at all. To address this, notify the drivers with bss_info_changed with the new BSS_CHANGED_DTIM_PERIOD flag when the DTIM becomes known. This might be when changing to associated, or later when the entire association was done with only probe response information. Rename the hardware flag for the current behaviour to IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC to more accurately reflect its behaviour. IEEE80211_HW_NEED_DTIM_PERIOD is no longer accurate as all drivers get the DTIM period now, just not before association. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-12 10:12:24 +02:00
mac80211: Use suitable semantics for beacon availability indication Currently beacon availability upon association is marked by have_beacon flag of assoc_data structure that becomes unavailable when association completes. However beacon availability indication is required also after association to inform a driver. Currently dtim_period parameter is used for this purpose. Move have_beacon flag to another structure, persistant throughout a interface's life cycle. Use suitable sematics for beacon availability indication. Signed-off-by: Alexander Bondar <alexander.bondar@intel.com> [fix another instance of BSS_CHANGED_DTIM_PERIOD in docs] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-16 17:34:17 +03:00
mac80211: inform the driver about update of dtim_period Currently, when the driver requires the DTIM period, mac80211 will wait to hear a beacon before association. This behavior is suboptimal since some drivers may be able to deal with knowing the DTIM period after the association, if they get it at all. To address this, notify the drivers with bss_info_changed with the new BSS_CHANGED_DTIM_PERIOD flag when the DTIM becomes known. This might be when changing to associated, or later when the entire association was done with only probe response information. Rename the hardware flag for the current behaviour to IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC to more accurately reflect its behaviour. IEEE80211_HW_NEED_DTIM_PERIOD is no longer accurate as all drivers get the DTIM period now, just not before association. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-12 10:12:24 +02:00
cfg80211/mac80211: use cfg80211 wdev mutex in mac80211 Using separate locks in cfg80211 and mac80211 has always caused issues, for example having to unlock in places in mac80211 to call cfg80211, which even needed a framework to make cfg80211 calls after some functions returned etc. Additionally, I suspect some issues people have reported with the cfg80211 state getting confused could be due to such issues, when cfg80211 is asking mac80211 to change state but mac80211 is in the process of telling cfg80211 that the state changed (in another way.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-10 12:32:47 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
cfg80211/mac80211: use cfg80211 wdev mutex in mac80211 Using separate locks in cfg80211 and mac80211 has always caused issues, for example having to unlock in places in mac80211 to call cfg80211, which even needed a framework to make cfg80211 calls after some functions returned etc. Additionally, I suspect some issues people have reported with the cfg80211 state getting confused could be due to such issues, when cfg80211 is asking mac80211 to change state but mac80211 is in the process of telling cfg80211 that the state changed (in another way.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-10 12:32:47 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: fix BSS info reconfiguration When reconfiguring an interface due to a previous hardware restart, mac80211 will currently include the new IBSS flag on non-IBSS interfaces which may confuse drivers. Instead of doing the ~0 trick, simply spell out which things are going to be reconfigured. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 09:44:02 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: support P2P GO powersave configuration If the low-level driver wants to support P2P GO powersave configuration, it must set the cfg80211 flags and mac80211 will pass the parameters to it. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-14 15:21:17 +01:00
mac80211: don't indicate probe resp change in IBSS mode Due the a fall-through in the switch statement, the IBSS mode got a report for AP_RPOBE_RESPONSE change on reconfig. Change this to an AP only notification. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-22 19:33:18 +02:00
mac80211: add explicit AP/GO driver operations Depending on the driver, a lot of setup may be necessary to start operating as an AP, some of which may fail. Add an explicit AP start driver method to make such failures easier to handle, and add an AP stop driver method for symmetry. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-19 15:44:42 +02:00
mac80211: don't indicate probe resp change in IBSS mode Due the a fall-through in the switch statement, the IBSS mode got a report for AP_RPOBE_RESPONSE change on reconfig. Change this to an AP only notification. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-22 19:33:18 +02:00
mac80211: add explicit AP/GO driver operations Depending on the driver, a lot of setup may be necessary to start operating as an AP, some of which may fail. Add an explicit AP start driver method to make such failures easier to handle, and add an AP stop driver method for symmetry. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-19 15:44:42 +02:00
mac80211: add ssid config to bss information in AP-mode Set SSID information from nl80211 beacon parameters. Advertise changes in SSID to low level drivers. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-04 11:11:32 +03:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: reconfig bss_info_changed only if beaconing For AP/IBSS/mesh interfaces, call the driver to reconfigure bss_info_changed only if the interface was beaconing before suspend, otherwise we call the driver and it might interpret the change as going from enabled to disabled. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-14 14:17:26 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
cfg80211: add P2P Device abstraction In order to support using a different MAC address for the P2P Device address we must first have a P2P Device abstraction that can be assigned a MAC address. This abstraction will also be useful to support offloading P2P operations to the device, e.g. periodic listen for discoverability. Currently, the driver is responsible for assigning a MAC address to the P2P Device, but this could be changed by allowing a MAC address to be given to the NEW_INTERFACE command. As it has no associated netdev, a P2P Device can only be identified by its wdev identifier but the previous patches allowed using the wdev identifier in various APIs, e.g. remain-on-channel. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-16 00:19:54 +02:00
mac80211: support P2P Device abstraction After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-18 20:07:15 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
cfg80211/mac80211: extensible frame processing Allow userspace to register for more than just action frames by giving the frame subtype, and make it possible to use this in various modes as well. With some tweaks and some added functionality this will, in the future, also be usable in AP mode and be able to replace the cooked monitor interface currently used in that case. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-12 15:38:38 +02:00
mac80211: add p2p device type support When a driver advertises p2p device support, mac80211 will handle it, but internally it will rewrite the interface type to STA/AP rather than P2P-STA/GO since otherwise a lot of paths need to be touched that are otherwise identical. A p2p boolean tells drivers whether or not a given interface will be used for p2p or not. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-16 14:58:23 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: add recalc PS in ieee80211_reconfig() Driver should be instructed to enter PS AFTER reconfiguring ASSOCIATED (in STA case) using ieee80211_bss_info_change_notify same as it's being done in ieee80211_set_associated() Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 12:29:06 +02:00
mac80211: send null packet on active (psm) reconfiguration The sta might be in psm against the ap (e.g. because this was the before a hw restart), so we explicitly send a null packet in order to make sure it'll sync against the ap (and get out of psm). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-26 13:36:05 +02:00
mac80211: don't send null data packet when not associated On resume or firmware recovery, mac80211 sends a null data packet to see if the AP is still around and hasn't disconnected us. However, it always does this even if it wasn't even connected before, leading to a warning in the new channel context code. Fix this by checking that it's associated. Cc: stable@vger.kernel.org Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-08 14:06:28 +01:00
mac80211: send null packet on active (psm) reconfiguration The sta might be in psm against the ap (e.g. because this was the before a hw restart), so we explicitly send a null packet in order to make sure it'll sync against the ap (and get out of psm). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-26 13:36:05 +02:00
mac80211: add stations after AP start on reconfig When performing a HW restart for an AP mode interface, add stations back only after the AP is beaconing. This mimics the normal flow of STA addition on AP. Some devices (wlcore) do not support adding stations before beaconing, so this has the added benefit of making recovery work for them. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-03 23:31:56 +03:00
mac80211: fix ADDBA declined after suspend with wowlan WLAN_STA_BLOCK_BA is set while suspending but doesn't get cleared when resuming in case of wowlan. This causes further ADDBA requests received to be rejected. Fix it by clearing it in the wowlan path as well. Signed-off-by: Eyal Shapira <eyal@wizery.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-29 02:00:22 -07:00
mac80211: always set in_reconfig=false on wakeup If the interfaces were removed just before a restart work was started, open_count will be 0, and most of the reconfig work will be skipped, including the resetting of local->in_reconfig to false. Leaving local->inconfig = true will result in dropping any incoming packet. Fix it by always setting local->in_reconfig = false (even if there are no active interfaces). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 15:08:25 +03:00
mac80211: stop Rx during HW reconfig While HW reconfig is in progress, drop all incoming Rx. This prevents incoming packets from changing the internal state of the driver or calling callbacks of the low level driver while it is in inconsistent state. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-06 11:25:02 +03:00
mac80211: destroy virtual monitor interface across suspend It has to be removed from the driver, but completely destroying it helps handle unplug of a device during suspend since then the channel context handling etc. doesn't have to happen later when it's removed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-27 23:20:27 +01:00
mac80211: simplify station/aggregation code A number of places use RCU locking for accessing the station list, even though they do not need to. Use mutex locking instead to prepare for the locking changes I want to make. The mlme code is also using a WLAN_STA_DISASSOC flag that has the same meaning as WLAN_STA_BLOCK_BA, so use that. While doing so, combine places where we loop over stations twice, and optimise away some of the loops by checking if the hardware supports aggregation at all first. Also fix a more theoretical race condition: right now we could resume, set up an aggregation session, and right after tear it down again due to the code that is needed for hardware reconfiguration here. Also mark add a comment to that code marking it as a workaround. Finally, remove a pointless aggregation disabling loop when an interface is stopped, directly after that we remove all stations from it which will also disable all aggregation sessions that may still be active, and does so in a race-free way unlike the current loop that doesn't block new sessions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-10 10:21:29 +02:00
mac80211: tear down all agg queues when restart/reconfig hw When there is a need to restart/reconfig hw, tear down all the aggregation queues and let the mac80211 and driver get in-sync to have the opportunity to re-establish the aggregation queues again. Need to wait until driver re-establish all the station information before tear down the aggregation queues, driver(at least iwlwifi driver) will reject the stop aggregation queue request if station is not ready. But also need to make sure the aggregation queues are tear down before waking up the queues, so mac80211 will not sending frames with aggregation bit set. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-03 09:28:55 -08:00
mac80211: simplify station/aggregation code A number of places use RCU locking for accessing the station list, even though they do not need to. Use mutex locking instead to prepare for the locking changes I want to make. The mlme code is also using a WLAN_STA_DISASSOC flag that has the same meaning as WLAN_STA_BLOCK_BA, so use that. While doing so, combine places where we loop over stations twice, and optimise away some of the loops by checking if the hardware supports aggregation at all first. Also fix a more theoretical race condition: right now we could resume, set up an aggregation session, and right after tear it down again due to the code that is needed for hardware reconfiguration here. Also mark add a comment to that code marking it as a workaround. Finally, remove a pointless aggregation disabling loop when an interface is stopped, directly after that we remove all stations from it which will also disable all aggregation sessions that may still be active, and does so in a race-free way unlike the current loop that doesn't block new sessions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-10 10:21:29 +02:00
mac80211: split aggregation stop by reason The initiator/tx doesn't really identify why an aggregation session is stopped, give a reason for stopping that more clearly identifies what's going on. This will help tell the driver clearly what is expected of it. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-18 13:31:31 +02:00
mac80211: optimise station flags The flaglock in struct sta_info has long been something that I wanted to get rid of, this finally does the conversion to atomic bitops. The conversion itself is straight-forward in most places, a few things needed to change a bit since we can no longer use multiple bits at the same time. On x86-64, this is a fairly significant code size reduction: text data bss dec hex 427861 23648 1008 452517 6e7a5 before 425383 23648 976 450007 6ddd7 after Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:36 +02:00
mac80211: tear down all agg queues when restart/reconfig hw When there is a need to restart/reconfig hw, tear down all the aggregation queues and let the mac80211 and driver get in-sync to have the opportunity to re-establish the aggregation queues again. Need to wait until driver re-establish all the station information before tear down the aggregation queues, driver(at least iwlwifi driver) will reject the stop aggregation queue request if station is not ready. But also need to make sure the aggregation queues are tear down before waking up the queues, so mac80211 will not sending frames with aggregation bit set. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-03 09:28:55 -08:00
mac80211: simplify station/aggregation code A number of places use RCU locking for accessing the station list, even though they do not need to. Use mutex locking instead to prepare for the locking changes I want to make. The mlme code is also using a WLAN_STA_DISASSOC flag that has the same meaning as WLAN_STA_BLOCK_BA, so use that. While doing so, combine places where we loop over stations twice, and optimise away some of the loops by checking if the hardware supports aggregation at all first. Also fix a more theoretical race condition: right now we could resume, set up an aggregation session, and right after tear it down again due to the code that is needed for hardware reconfiguration here. Also mark add a comment to that code marking it as a workaround. Finally, remove a pointless aggregation disabling loop when an interface is stopped, directly after that we remove all stations from it which will also disable all aggregation sessions that may still be active, and does so in a race-free way unlike the current loop that doesn't block new sessions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-10 10:21:29 +02:00
mac80211: tear down all agg queues when restart/reconfig hw When there is a need to restart/reconfig hw, tear down all the aggregation queues and let the mac80211 and driver get in-sync to have the opportunity to re-establish the aggregation queues again. Need to wait until driver re-establish all the station information before tear down the aggregation queues, driver(at least iwlwifi driver) will reject the stop aggregation queue request if station is not ready. But also need to make sure the aggregation queues are tear down before waking up the queues, so mac80211 will not sending frames with aggregation bit set. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-03 09:28:55 -08:00
mac80211: stop queues temporarily for flushing Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-13 12:25:28 +01:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: cancel/restart all timers across suspend/resume We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-17 11:40:42 +02:00
mac80211: call restart complete at wowlan resume time When the driver's resume function can't completely restore the configuration in the device, it returns 1 from the callback which will be treated like a HW restart request, but done directly. In this case, also call the driver's restart_complete() function so it can finish the reconfiguration there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-11 00:28:01 +01:00
mac80211: call driver method when restart completes When the driver requests a restart (reconfiguration) it gets all the normal method calls, but can't really tell why they're happening. Call a new restart_complete op in the driver when the restart completes, so it could keep its own state about the restart and clear it there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-06 19:18:13 +01:00
mac80211: call restart complete at wowlan resume time When the driver's resume function can't completely restore the configuration in the device, it returns 1 from the callback which will be treated like a HW restart request, but done directly. In this case, also call the driver's restart_complete() function so it can finish the reconfiguration there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-11 00:28:01 +01:00
mac80211: cancel/restart all timers across suspend/resume We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-17 11:40:42 +02:00
mac80211: fix resume When mac80211 resumes, it currently first sets suspended to false so the driver can start doing things and we can receive frames. However, if we actually receive frames then it can end up starting some work which adds timers and then later runs into a BUG_ON in the timer code because it tries add_timer() on a pending timer. Fix this by keeping track of the resuming process by introducing a new variable 'resuming' which gets set to true early on instead of setting 'suspended' to false, and allow queueing work but not receiving frames while resuming. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-19 14:29:39 +01:00
mac80211: cancel/restart all timers across suspend/resume We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-17 11:40:42 +02:00
mac80211: fix resume When mac80211 resumes, it currently first sets suspended to false so the driver can start doing things and we can receive frames. However, if we actually receive frames then it can end up starting some work which adds timers and then later runs into a BUG_ON in the timer code because it tries add_timer() on a pending timer. Fix this by keeping track of the resuming process by introducing a new variable 'resuming' which gets set to true early on instead of setting 'suspended' to false, and allow queueing work but not receiving frames while resuming. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-19 14:29:39 +01:00
mac80211: cancel/restart all timers across suspend/resume We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-17 11:40:42 +02:00
mac80211: fix IEEE80211_SDATA_DISCONNECT_RESUME Since commit 12e7f517029dad819c45eca9ca01fdb9ba57616b, IEEE80211_SDATA_DISCONNECT_RESUME no longer worked as it would simply never be tested. Restore a bit of the code removed there and in 9b7d72c1041ec5b20b24af487a9 to make it work again. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-29 14:57:44 +02:00
mac80211: clean up station cleanup timer We currently run this timer exactly once when a new mac80211 device is registered, but that is completely pointless since it will have no work to do at all. Therefore, remove that and also simplify some code using the timer. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-01 13:52:48 +02:00
mac80211: cancel/restart all timers across suspend/resume We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-17 11:40:42 +02:00
mac80211: add hardware restart function Some hardware defects may require the hardware to be re-initialised completely from scratch. Drivers would need much information (for instance the current MAC address, crypto keys, beaconing information, etc.) stored duplicated from mac80211 to be able to do this, so let mac80211 help them. The new ieee80211_restart_hw() function requires the same code as resuming, so move that code into a new ieee80211_reconfig() function in util.c and leave only the suspend code in pm.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-14 10:09:24 +02:00
mac80211: redefine usage of the mac80211 workqueue The mac80211 workqueue exists to enable mac80211 and drivers to queue their own work on a single threaded workqueue. mac80211 takes care to flush the workqueue during suspend but we never really had requirements on drivers for how they should use the workqueue in consideration for suspend. We extend mac80211 to document how the mac80211 workqueue should be used, how it should not be used and finally move raw access to the workqueue to mac80211 only. Drivers and mac80211 use helpers to queue work onto the mac80211 workqueue: * ieee80211_queue_work() * ieee80211_queue_delayed_work() These helpers will now warn if mac80211 already completed its suspend cycle and someone is trying to queue work. mac80211 flushes the mac80211 workqueue prior to suspend a few times, but we haven't taken the care to ensure drivers won't add more work after suspend. To help with this we add a warning when someone tries to add work and mac80211 already completed the suspend cycle. Drivers should ensure they cancel any work or delayed work in the mac80211 stop() callback. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 20:08:07 -04:00
mac80211: allow driver to disconnect after resume In WoWLAN, devices may use crypto keys for TX/RX and could also implement GTK rekeying. If the driver isn't able to retrieve replay counters and similar information from the device upon resume, or if the device isn't responsive due to platform issues, it isn't safe to keep the connection up as GTK rekey messages from during the sleep time could be replayed against it. The only protection against that is disconnecting from the AP. Modifying mac80211 to do that while it is resuming would be very complex and invasive in the case that the driver requires a reconfig, so do it after it has resumed completely. In that case, however, packets might be replayed since it can then only happen after TX/RX are up again, so mark keys for interfaces that need to disconnect as "tainted" and drop all packets that are sent or received with those keys. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-12 12:30:59 +02:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: enable spatial multiplexing powersave Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-01 13:37:02 +01:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: fix deadlock with multiple interfaces The locking around ieee80211_recalc_smps is buggy -- it cannot acquire another interface's mutex while the iflist mutex is held because another code path could be holding the iface mutex and trying to acquire the iflist mutex. But the locking is also unnecessary, we only check "ifmgd->associated" as a bool, and don't use the pointer (in check_mgd_smps). Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-05 10:41:47 +02:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: enable spatial multiplexing powersave Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-01 13:37:02 +01:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: enable spatial multiplexing powersave Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-01 13:37:02 +01:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: change locking around ieee80211_recalc_smps Make the function acquire the necessary mutex itself to simplify the callers. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 10:17:11 +02:00
mac80211: enable spatial multiplexing powersave Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-01 13:37:02 +01:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: change locking around ieee80211_recalc_smps Make the function acquire the necessary mutex itself to simplify the callers. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 10:17:11 +02:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: enable spatial multiplexing powersave Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-01 13:37:02 +01:00
mac80211: split up and insert custom IEs correctly Currently, we insert all user-specified IEs before the HT IE for association, and after the HT IE for probe requests. For association, that's correct only if the user-specified IEs are RSN only, incorrect in all other cases including WPA. Change this to split apart the user-specified IEs in two places for association: before the HT IE (e.g. RSN), after the HT IE (generally empty right now I think?) and after WMM (all other vendor-specific IEs). For probes, split the IEs in different places to be correct according to the spec. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-23 13:15:38 +01:00
mac80211: add driver RSSI threshold events mac80211 maintains a running average of the RSSI when a STA is associated to an AP. Report threshold events to any driver that has registered callbacks for getting RSSI measurements. Implement callbacks in mac80211 so that driver can set thresholds. Add callbacks in mac80211 which is invoked when an RSSI threshold event occurs. mac80211: add tracing to rssi_reports api and remove extraneous fn argument mac80211: scale up rssi thresholds from driver by 16 before storing Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-08 08:46:22 -07:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: Support ht-cap over-rides. This implements ht-cap over-rides for mac80211 drivers. HT may be disabled, making an /a/b/g/n station act like an a/b/g station. HT40 may be disabled forcing the station to be HT20 even if the AP and local hardware support HT40. MAX-AMSDU may be disabled. AMPDU-Density may be increased. AMPDU-Factor may be decreased. This has been successfully tested with ath9k using patched wpa_supplicant and iw. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 11:32:00 -08:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: Support ht-cap over-rides. This implements ht-cap over-rides for mac80211 drivers. HT may be disabled, making an /a/b/g/n station act like an a/b/g station. HT40 may be disabled forcing the station to be HT20 even if the AP and local hardware support HT40. MAX-AMSDU may be disabled. AMPDU-Density may be increased. AMPDU-Factor may be decreased. This has been successfully tested with ath9k using patched wpa_supplicant and iw. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 11:32:00 -08:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: Support ht-cap over-rides. This implements ht-cap over-rides for mac80211 drivers. HT may be disabled, making an /a/b/g/n station act like an a/b/g station. HT40 may be disabled forcing the station to be HT20 even if the AP and local hardware support HT40. MAX-AMSDU may be disabled. AMPDU-Density may be increased. AMPDU-Factor may be decreased. This has been successfully tested with ath9k using patched wpa_supplicant and iw. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 11:32:00 -08:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: include VHT capability IE in probe requests Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 11:25:12 +00:00
mac80211: fix ieee80211_ie_build_vht_cap indentation Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-07 12:45:06 +01:00
mac80211: include VHT capability IE in probe requests Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 11:25:12 +00:00
ieee80211: Rename VHT cap struct Rename struct ieee80211_vht_capabilities to ieee80211_vht_cap and renamed its member vht_capabilities_info to vht_cap_info. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-10 11:25:40 +00:00
mac80211: include VHT capability IE in probe requests Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-02 11:25:12 +00:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: Advertise HT protection mode in IEs Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Reviewed-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-30 14:20:29 -07:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: fix STA channel width field According to IEEE 802.11 8.4.2.59, set the "STA channel width" bit to 0 if transmitting STA is using a 20mhz channel. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-18 19:24:14 -07:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: handle protection mode, RIFS and ADDBA for HT IBSS * Follow 802.11n-2009 9.13.3.1 for protection mode and ADDBA * Send ADDBA only to HT STAs - implement 11.5.1.1 partially Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30 16:56:33 +01:00
mac80211: Advertise HT protection mode in IEs Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Reviewed-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-30 14:20:29 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: constify IE parsing Make all the parsed IE pointers const, and propagate the change to all the users etc. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:43:19 +01:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
wireless: rename ht_info to ht_operation Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15 19:45:16 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: convert to channel definition struct Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 11:39:59 +01:00
mac80211: Add HT helper functions Some refactoring for IBSS HT. Move HT info and capability IEs building code into separate functions. Add function to get the channel type from an HT info IE. Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-26 14:47:26 -07:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: don't expose ieee80211_add_srates_ie() This and ieee80211_add_ext_srates_ie() aren't exported, so can't be used by drivers anyway, but there's also no reason that they should be so make them private to mac80211 and use sdata instead of vif arguments. Acked-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-28 10:33:25 +02:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: don't expose ieee80211_add_srates_ie() This and ieee80211_add_ext_srates_ie() aren't exported, so can't be used by drivers anyway, but there's also no reason that they should be so make them private to mac80211 and use sdata instead of vif arguments. Acked-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-28 10:33:25 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: Indicate basic rates when adding rate IEs Basic rates are added with supported rates IE and extended supported rates IE. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:20 -07:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Indicate basic rates when adding rate IEs Basic rates are added with supported rates IE and extended supported rates IE. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:20 -07:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: don't expose ieee80211_add_srates_ie() This and ieee80211_add_ext_srates_ie() aren't exported, so can't be used by drivers anyway, but there's also no reason that they should be so make them private to mac80211 and use sdata instead of vif arguments. Acked-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-28 10:33:25 +02:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: fix the setting of extended supported rate IE The patch "mac80211: select and adjust bitrates according to channel mode" causes regression and breaks the extended supported rate IE setting. Since "i" is starting with 8, so this is not necessary to introduce "skip" here. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Colleen Twitty <colleen@cozybit.com> Reviewed-by: Jason Abele <jason@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-07 23:40:44 -07:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: don't expose ieee80211_add_srates_ie() This and ieee80211_add_ext_srates_ie() aren't exported, so can't be used by drivers anyway, but there's also no reason that they should be so make them private to mac80211 and use sdata instead of vif arguments. Acked-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-28 10:33:25 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: fix current vs. operating channel in preq/beacon When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-23 14:53:27 +02:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: Indicate basic rates when adding rate IEs Basic rates are added with supported rates IE and extended supported rates IE. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:20 -07:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: Indicate basic rates when adding rate IEs Basic rates are added with supported rates IE and extended supported rates IE. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-02 21:21:20 -07:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: standardize adding supported rates IEs Relocate the mesh implementation of adding the (extended) supported rates IE to util.c, anticipating its use by other parts of mac80211. Signed-off-by: Arik Nemtsov <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-28 14:12:51 +03:00
mac80211: add function retrieve average rssi Add utility function to provide the average rssi per vif Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-13 12:02:57 -07:00
mac80211: check for non-managed interface Average beacon signal only keep tracked by managed interface, give warning and return 0 for the others. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-23 09:30:32 -07:00
mac80211: return the RSSI in dBm For the sake of speed of calculation and number accuracy, mac80211 tracks the RSSI in dBm * 16. But it forgot to divide back by 16 when the RSSI is asked by the driver. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20 17:05:45 +02:00
mac80211: add function retrieve average rssi Add utility function to provide the average rssi per vif Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-13 12:02:57 -07:00
mac80211: declare ieee80211_ave_rssi as EXPORT ieee80211_ave_rssi need to be declare as export for driver to use it. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-20 11:57:00 -07:00
mac80211: track needed RX chains for channel contexts On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-11 14:34:12 +02:00
mac80211: support RX_FLAG_MACTIME_END Allow drivers to indicate their mactime is at RX completion and adjust for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by Johannes Berg. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [fix docs, atheros drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 10:46:27 -08:00
mac80211: support drivers reporting VHT RX Add support to mac80211 for having drivers report received VHT MCS information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 15:07:02 +01:00
mac80211: support RX_FLAG_MACTIME_END Allow drivers to indicate their mactime is at RX completion and adjust for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by Johannes Berg. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [fix docs, atheros drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 10:46:27 -08:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: support RX_FLAG_MACTIME_END Allow drivers to indicate their mactime is at RX completion and adjust for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by Johannes Berg. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [fix docs, atheros drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 10:46:27 -08:00
mac80211: select and adjust bitrates according to channel mode The various components accessing the bitrates table must use consider the used channel bandwidth to select only available rates or calculate the bitrate correctly. There are some rates in reduced bandwidth modes which can't be represented as multiples of 500kbps, like 2.25 MBit/s in 5 MHz mode. The standard suggests to round up to the next multiple of 500kbps, just do that in mac80211 as well. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [make rate unsigned in ieee80211_add_tx_radiotap_header(), squash fix] Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-08 16:55:53 +02:00
mac80211: support RX_FLAG_MACTIME_END Allow drivers to indicate their mactime is at RX completion and adjust for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by Johannes Berg. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [fix docs, atheros drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 10:46:27 -08:00
mac80211: fix crash if bitrate calculation goes wrong If a frame's timestamp is calculated, and the bitrate calculation goes wrong and returns zero, the system will attempt to divide by zero and crash. Catch this case and print the rate information that the driver reported when this happens. Cc: stable@vger.kernel.org Reported-by: Thomas Lindroth <thomas.lindroth@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11 15:47:06 +02:00
mac80211: support RX_FLAG_MACTIME_END Allow drivers to indicate their mactime is at RX completion and adjust for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by Johannes Berg. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [fix docs, atheros drivers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 10:46:27 -08:00
mac80211: add radar detection command/event Add command to trigger radar detection in the driver/FW. Once radar detection is started it should continuously monitor for radars as long as the channel active. If radar is detected usermode notified with 'radar detected' event. Scanning and remain on channel functionality must be disabled while doing radar detection/scanning, and vice versa. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-08 18:16:20 +01:00
mac80211: DFS setup chandef for radar_event correctly Setup chandef for radar event correctly, before we will clear this in ieee80211_dfs_cac_cancel() function. Without this patch mac80211 will report wrong channel width in case we will get radar event during active CAC. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-11-05 14:48:46 +01:00
mac80211: add radar detection command/event Add command to trigger radar detection in the driver/FW. Once radar detection is started it should continuously monitor for radars as long as the channel active. If radar is detected usermode notified with 'radar detected' event. Scanning and remain on channel functionality must be disabled while doing radar detection/scanning, and vice versa. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-08 18:16:20 +01:00
mac80211: DFS setup chandef for radar_event correctly Setup chandef for radar event correctly, before we will clear this in ieee80211_dfs_cac_cancel() function. Without this patch mac80211 will report wrong channel width in case we will get radar event during active CAC. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-11-05 14:48:46 +01:00
mac80211: add radar detection command/event Add command to trigger radar detection in the driver/FW. Once radar detection is started it should continuously monitor for radars as long as the channel active. If radar is detected usermode notified with 'radar detected' event. Scanning and remain on channel functionality must be disabled while doing radar detection/scanning, and vice versa. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-08 18:16:20 +01:00
mac80211: split off channel switch parsing function The channel switch parsing function can be re-used for the IBSS code, put the common part into an extra function. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [also move/rename chandef_downgrade] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-28 13:41:29 +02:00
mac80211: implement SMPS for AP When the driver requests to move to STATIC or DYNAMIC SMPS, we send an action frame to each associated station and reconfigure the channel context / driver. Of course, non-MIMO stations are ignored. The beacon isn't updated. The association response will include the original capabilities. Stations that associate while in non-OFF SMPS mode will get an action frame right after association to inform them about our current state. Note that we wait until the end of the EAPOL. Sending an action frame before the EAPOL is finished can be an issue for a few clients. Clients aren't likely to send EAPOL frames in MIMO anyway. When the SMPS configuration gets more permissive (e.g. STATIC -> OFF), we don't wake up stations that are asleep We remember that they don't know about the change and send the action frame when they wake up. When the SMPS configuration gets more restrictive (e.g. OFF -> STATIC), we set the TIM bit for every sleeping STA. uAPSD stations might send MIMO until they poll the action frame, but this is for a short period of time. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> [fix vht streams loop, initialisation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-01 16:45:43 +03:00
{nl,cfg,mac}80211: enable the triggering of CSA frame in mesh Allow the triggering of CSA frame using mesh interface. The rules are more or less same with IBSS, such as not allowed to change between the band and channel width has to be same from the previous mode. Also, move the ieee80211_send_action_csa to a common space so that it can be re-used by mesh interface. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-14 19:08:28 -07:00