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linux/net/mac80211/status.c

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mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
cfg80211/mac80211: allow registering for and sending action frames This implements a new command to register for action frames that userspace wants to handle instead of the in-kernel rejection. It is then responsible for rejecting ones that it decided not to handle. There is no unregistration, but the socket can be closed for that. Frames that are not registered for will not be forwarded to userspace and will be rejected by the kernel, the cfg80211 API helps implementing that. Additionally, this patch adds a new command that allows doing action frame transmission from userspace. It can be used either to exchange action frames on the current operational channel (e.g., with the AP with which we are currently associated) or to exchange off-channel Public Action frames with the remain-on-channel command. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-15 12:53:10 +02:00
mac80211: add Intel Mobile Communications copyright Our legal structure changed at some point (see wikipedia), but we forgot to immediately switch over to the new copyright notice. For files that we have modified in the time since the change, add the proper copyright notice now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-03 15:24:57 +03:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
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: use compare_ether_addr on MAC addresses instead of memcmp Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-01 15:22:09 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: clean up asm/unaligned.h inclusion Some files implicitly get this via mesh.h which itself doesn't need it, so move the inclusion into the right files. Some other files don't need it at all but include it, so remove it from there. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-20 11:38:41 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: split PS buffers into ACs For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:29 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: use ieee80211_free_txskb to fix possible skb leaks A few places free skbs using dev_kfree_skb even though they're called after ieee80211_subif_start_xmit might have cloned it for tracking tx status. Use ieee80211_free_txskb here to prevent skb leaks. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-08 14:39:33 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: split PS buffers into ACs For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:29 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: don't handle filtered frames within a BA session When running a BA session, the driver (or the hardware) already takes care of retransmitting failed frames, since it has to keep the receiver reorder window in sync. Adding another layer of retransmit around that does not improve anything. In fact, it can only lead to some strong reordering with huge latency. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-22 16:16:07 +01:00
mac80211: Don't buffer non-bufferable MMPDUs Non-bufferable MMPDUs are sent out to STAs even while in PS mode (for example probe responses). Applying filtered frame handling for these doesn't seem to make much sense and will only create more air utilization when the STA wakes up. Hence, apply filtered frame handling only for bufferable MMPDUs. Discovered while testing an old VOIP phone that started probing for APs while in PS mode. The mac80211/ath9k AP where the STA is associated would reply with a probe response but the phone sometimes moved to a new channel already and couldn't ack the probe response anymore. In that case mac80211 applied filtered frame handling for the un-acked probe response. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-05 17:42:13 +01:00
mac80211: clear TX control on filtered frames When an skb survived a round-trip through the driver and needs to be re-used, its control information is definitely not valid any more, the driver will have overwritten it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-17 01:47:56 +01:00
wireless: fix several minor description typos Signed-off-by: Walter Goldens <goldenstranger@yahoo.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-18 04:44:54 -07:00
mac80211: re-enable re-transmission of filtered frames In an earlier commit, mac80211: disable software retry for now Pavel Roskin reported a problem that seems to be due to software retry of already transmitted frames. It turns out that we've never done that correctly, but due to some recent changes it now crashes in the TX code. I've added a comment in the patch that explains the problem better and also points to possible solutions -- which I can't implement right now. I disabled software retry of failed/filtered frames because it was broken. With the work of the previous patches, it now becomes fairly easy to re-enable it by adding a flag indicating that the frame shouldn't be modified, but still running it through the transmit handlers to populate the control information. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-17 01:47:59 +01:00
mac80211: clear TX control on filtered frames When an skb survived a round-trip through the driver and needs to be re-used, its control information is definitely not valid any more, the driver will have overwritten it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-17 01:47:56 +01:00
mac80211: fill jiffies/vif on filtered frames Filtered frames not only need their control information cleared to avoid wrong checks, but also need to have jiffies and vif assigned so they can be processed or expired. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-25 19:07:39 +01:00
mac80211: re-enable re-transmission of filtered frames In an earlier commit, mac80211: disable software retry for now Pavel Roskin reported a problem that seems to be due to software retry of already transmitted frames. It turns out that we've never done that correctly, but due to some recent changes it now crashes in the TX code. I've added a comment in the patch that explains the problem better and also points to possible solutions -- which I can't implement right now. I disabled software retry of failed/filtered frames because it was broken. With the work of the previous patches, it now becomes fairly easy to re-enable it by adding a flag indicating that the frame shouldn't be modified, but still running it through the transmit handlers to populate the control information. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-17 01:47:59 +01:00
mac80211: clear txflags for ps-filtered frames This patch fixes stale mac80211_tx_control_flags for filtered / retried frames. Because ieee80211_handle_filtered_frame feeds skbs back into the tx path, they have to be stripped of some tx flags so they won't confuse the stack, driver or device. Cc: <stable@kernel.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21 21:36:18 +02:00
mac80211: clear TX control on filtered frames When an skb survived a round-trip through the driver and needs to be re-used, its control information is definitely not valid any more, the driver will have overwritten it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-17 01:47:56 +01:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: clear more-data bit on filtered frames It doesn't seem likely, but maybe possible, that the more-data bit needs to be recomputed due to changes in the queued frames. Clear it for filtered frames to ensure that we never send it incorrectly. It'll be set again as necessary when we retransmit this frame. The more likely case is maybe where the station woke up after the filtered frame in which case more-data should be clear when the frame is transmitted to the station since it is now awake. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:31 +02:00
mac80211: split PS buffers into ACs For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:29 +02:00
mac80211: implement uAPSD Add uAPSD support to mac80211. This is probably not possible with all devices, so advertising it with the cfg80211 flag will be left up to drivers that want it. Due to my previous patches it is now a fairly straight-forward extension. Drivers need to have accurate TX status reporting for the EOSP frame. For drivers that buffer themselves, the provided APIs allow releasing the right number of frames, but then drivers need to set EOSP and more-data themselves. This is documented in more detail in the new code itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:33 +02:00
mac80211: use helper function to access ieee802_1d_to_ac[] cleanup patch to make use of ieee80211_ac_from_tid() to retrieve ac from ieee802_1d_to_ac[] Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-01-24 16:42:10 +01:00
mac80211: split PS buffers into ACs For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:29 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
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: fix handling of PS filtering with fast-xmit Fixes dropped packets in the tx path in case a non-PS station triggers the tx filter. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-24 14:59:49 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: add HW flag for disabling auto link-PS in AP mode When operating in AP mode the wl1271 hardware filters out null-data packets as well as management packets. This makes it impossible for mac80211 to monitor the PS mode by using the PM bit of incoming frames. Implement a HW flag to indicate that mac80211 should ignore the PM bit. In addition, expose ieee80211_sta_ps_transition() to make low-level drivers capable of controlling PS-mode. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-31 22:29:13 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
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: split PS buffers into ACs For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:29 +02:00
mac80211: unify TIM bit handling Currently, the TIM bit for a given station is set and cleared all over the place. Since the logic to set/clear it will become much more complex when we add uAPSD support, as a first step let's collect the entire logic in one place. This requires a few small adjustments to other places. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:27 +02:00
mac80211: also expire filtered frames mac80211 will expire normal PS-buffered frames, but if the device rejected some frames for a sleeping station, these won't be on the ps_tx_buf queue but on the tx_filtered queue instead; this is done to avoid reordering. However, mac80211 will not expire frames from the filtered queue, let's fix that. Also add a more comments to what all this expiry is doing and how it works. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
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: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: clean up debugging There are a few things that make the logging and debugging in mac80211 less useful than it should be right now: * a lot of messages should be pr_info, not pr_debug * wholesale use of pr_debug makes it require *both* Kconfig and dynamic configuration * there are still a lot of ifdefs * the style is very inconsistent, sometimes the sdata->name is printed in front Clean up everything, introducing new macros and separating out the station MLME debugging into a new Kconfig symbol. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-22 11:29:50 +02:00
mac80211: use ieee80211_free_txskb to fix possible skb leaks A few places free skbs using dev_kfree_skb even though they're called after ieee80211_subif_start_xmit might have cloned it for tracking tx status. Use ieee80211_free_txskb here to prevent skb leaks. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-08 14:39:33 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +02:00
mac80211: make ieee80211_send_bar available for drivers To properly maintain the peer's block ack window, the driver needs to be able to control the new starting sequence number that is sent along with the BlockAckReq frame. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-20 15:53:55 +02:00
mac80211: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +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: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: add separate last_ack variable Instead of touching the rx_stats.last_rx from the status path, introduce and use a status_stats.last_ack variable. This will make rx_stats.last_rx indicate when the last frame was received, making it available for real "last_rx" and statistics gathering; statistics, when done per-CPU, will need to figure out which place was updated last for those items where the "last" value is exposed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-03-31 20:02:07 +03:00
mac80211: update sta->last_rx on acked tx frames When clients are idle for too long, hostapd sends nullfunc frames for probing. When those are acked by the client, the idle time needs to be updated. To make this work (and to avoid unnecessary probing), update sta->last_rx whenever an ACK was received for a tx packet. Only do this if the flag IEEE80211_HW_REPORTS_TX_ACK_STATUS is set. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-29 21:39:34 +02:00
mac80211: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +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: don't parse encrypted management frames in ieee80211_frame_acked ieee80211_frame_acked is called when a frame is acked by the peer. In case this is a management frame, we check if this an SMPS frame, in which case we can update our antenna configuration. When we parse the management frame we look at the category in case it is an action frame. That byte sits after the IV in case the frame was encrypted. This means that if the frame was encrypted, we basically look at the IV instead of looking at the category. It is then theorically possible that we think that an SMPS action frame was acked where really we had another frame that was encrypted. Since the only management frame whose ack needs to be tracked is the SMPS action frame, and that frame is not a robust management frame, it will never be encrypted. The easiest way to fix this problem is then to not look at frames that were encrypted. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 10:58:51 +03:00
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: 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
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: 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
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: 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
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: 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
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: 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
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: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +02:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +02:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +02:00
mac80211: Populate radiotap header with MCS info for TX frames mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed frames that are sent to a monitor interface during the status callback lack this information. Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr and populate them when sending tx'ed frames to the monitors. The needed headroom is only extended by one byte since we don't include legacy rate information in the rtap header for HT frames. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:55 +02:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +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: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +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: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: Fix endian bug in radiotap header generation I intoduced this bug in commit a2fe81667410723d941a688e1958a49d67ca3346 "mac80211: Build TX radiotap header dynamically" Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 17:02:16 +01:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
networking: make skb_push & __skb_push return void pointers It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) @@ expression SKB, LEN; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; @@ - fn(SKB, LEN)[0] + *(u8 *)fn(SKB, LEN) Note that the last part there converts from push(...)[0] to the more idiomatic *(u8 *)push(...). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 14:29:23 +02:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +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: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +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: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: Fix endian bug in radiotap header generation I intoduced this bug in commit a2fe81667410723d941a688e1958a49d67ca3346 "mac80211: Build TX radiotap header dynamically" Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 17:02:16 +01:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: fixup radiotap tx flags for RTS/CTS When using RTS/CTS, the CTS-to-Self bit in radiotap TX flags is getting set instead of the RTS bit. Set the correct one. Reported-by: Larry Maxwell <larrymaxwell@agilemesh.com> Signed-off-by: Bob Copeland <bob@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-16 08:32:41 -04:00
mac80211: Fix endian bug in radiotap header generation I intoduced this bug in commit a2fe81667410723d941a688e1958a49d67ca3346 "mac80211: Build TX radiotap header dynamically" Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 17:02:16 +01:00
mac80211: fixup radiotap tx flags for RTS/CTS When using RTS/CTS, the CTS-to-Self bit in radiotap TX flags is getting set instead of the RTS bit. Set the correct one. Reported-by: Larry Maxwell <larrymaxwell@agilemesh.com> Signed-off-by: Bob Copeland <bob@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-16 08:32:41 -04:00
mac80211: Fix endian bug in radiotap header generation I intoduced this bug in commit a2fe81667410723d941a688e1958a49d67ca3346 "mac80211: Build TX radiotap header dynamically" Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-18 17:02:16 +01:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: Populate radiotap header with MCS info for TX frames mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed frames that are sent to a monitor interface during the status callback lack this information. Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr and populate them when sending tx'ed frames to the monitors. The needed headroom is only extended by one byte since we don't include legacy rate information in the rtap header for HT frames. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:55 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +02:00
mac80211: Populate radiotap header with MCS info for TX frames mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed frames that are sent to a monitor interface during the status callback lack this information. Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr and populate them when sending tx'ed frames to the monitors. The needed headroom is only extended by one byte since we don't include legacy rate information in the rtap header for HT frames. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:55 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +02:00
mac80211: Populate radiotap header with MCS info for TX frames mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed frames that are sent to a monitor interface during the status callback lack this information. Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr and populate them when sending tx'ed frames to the monitors. The needed headroom is only extended by one byte since we don't include legacy rate information in the rtap header for HT frames. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:55 +02:00
mac80211: report some VHT radiotap infos for tx status The radiotap VHT info is 12 bytes (required to be aligned on 2) : u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* u8 bandwidth u8 mcs_nss[4] u8 coding u8 group_id u16 partial_aid ATM mac80211 can handle IEEE80211_RADIOTAP_VHT_KNOWN_{GI,BANDWIDTH} and mcs_nss[0] (i.e single user) in simple cases. This is more a placeholder to let sniffers give more clues for VHT, since we don't have yet the proper infrastructure/conventions in mac80211 for complete feedback (e.g consider dynamic BW). Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-27 11:47:04 +02:00
mac80211: Build TX radiotap header dynamically Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 18:08:54 +02:00
mac80211: retransmit TDLS teardown packet through AP if not ACKed Since the TDLS peer station might not receive the teardown packet (e.g., when in PS), this makes sure the packet is retransmitted - this time through the AP - if the TDLS peer didn't ACK the packet. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-09 18:50:08 +02:00
mac80211: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: retransmit TDLS teardown packet through AP if not ACKed Since the TDLS peer station might not receive the teardown packet (e.g., when in PS), this makes sure the packet is retransmitted - this time through the AP - if the TDLS peer didn't ACK the packet. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-09 18:50:08 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
idr: Return the deleted entry from idr_remove It is a relatively common idiom (8 instances) to first look up an IDR entry, and then remove it from the tree if it is found, possibly doing further operations upon the entry afterwards. If we change idr_remove() to return the removed object, all of these users can save themselves a walk of the IDR tree. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
2016-12-22 13:30:22 -05:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: stop using pointers as userspace cookies Even if the pointers are really only accessible to root and used pretty much only by wpa_supplicant, this is still not great; even for debugging it'd be easier to have something that's easier to read and guaranteed to never get reused. With the recent change to make mac80211 create an ack_skb for the mgmt-tx path this becomes possible, only the client probe method needs to also allocate an ack_skb, and we can store the cookie in that skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 23:14:59 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: stop using pointers as userspace cookies Even if the pointers are really only accessible to root and used pretty much only by wpa_supplicant, this is still not great; even for debugging it'd be easier to have something that's easier to read and guaranteed to never get reused. With the recent change to make mac80211 create an ack_skb for the mgmt-tx path this becomes possible, only the client probe method needs to also allocate an ack_skb, and we can store the cookie in that skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 23:14:59 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: stop using pointers as userspace cookies Even if the pointers are really only accessible to root and used pretty much only by wpa_supplicant, this is still not great; even for debugging it'd be easier to have something that's easier to read and guaranteed to never get reused. With the recent change to make mac80211 create an ack_skb for the mgmt-tx path this becomes possible, only the client probe method needs to also allocate an ack_skb, and we can store the cookie in that skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 23:14:59 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: stop using pointers as userspace cookies Even if the pointers are really only accessible to root and used pretty much only by wpa_supplicant, this is still not great; even for debugging it'd be easier to have something that's easier to read and guaranteed to never get reused. With the recent change to make mac80211 create an ack_skb for the mgmt-tx path this becomes possible, only the client probe method needs to also allocate an ack_skb, and we can store the cookie in that skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 23:14:59 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +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: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: remove always true condition The outside if statement checks that IEEE80211_TX_INTFL_MLME_CONN_TX is set so this condition is always true. Checking twice upsets the static checkers. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-07-27 11:11:11 +03:00
mac80211: retransmit TDLS teardown packet through AP if not ACKed Since the TDLS peer station might not receive the teardown packet (e.g., when in PS), this makes sure the packet is retransmitted - this time through the AP - if the TDLS peer didn't ACK the packet. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-09 18:50:08 +02:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: copy nl80211 mgmt TX SKB for status When we return the TX status for an nl80211 mgmt TX SKB, we should also return the original frame with the status to allow userspace to match up the submission (it could also use the cookie but both ways are permissible.) As TX SKBs could be encrypted, at least in the case of ANQP while associated with the AP, copy the original SKB, store it with an ACK frame ID and restructure the status path to use that to return status with the original SKB. Otherwise, userspace (in particular wpa_supplicant) will get confused. Reported-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-01 22:54:13 +02:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: set wifi_acked[_valid] bits for transmitted SKBs There may be situations in which the in-kernel originator of an SKB cares about its wifi transmission status. To have that, set the wifi_acked[_valid] bits before freeing/orphaning the SKB if the destructor is set. The originator can then use it in there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-19 15:02:32 +02:00
mac80211: Invoke TX LED in more code paths ieee80211_tx_status() is only one of the possible ways a driver can report a handled packet, some drivers call this for every packet while others calls it rarely or never. In order to invoke the TX LED in the non-status reporting cases this patch pushes the call to ieee80211_led_tx() into ieee80211_report_used_skb(), which is shared between the various code paths. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-05-27 14:59:27 -07:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: implement packet loss notification For drivers that have accurate TX status reporting we can report the number of consecutive lost packets to userspace using the new cfg80211 CQM event. The threshold is fixed right now, this may need to be improved in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24 08:10:06 +01:00
mac80211: add TDLS connection timeout Adding a timeout for tearing down a TDLS connection that hasn't had ACKed traffic sent through it for a certain amount of time. Since we have no other monitoring facility to indicate the existance (or non-existance) of a peer, this patch will cause a peer to be considered as unavailable if for some X time at least some Y packets have all not been ACKed. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-04 08:28:40 +03:00
mac80211: implement packet loss notification For drivers that have accurate TX status reporting we can report the number of consecutive lost packets to userspace using the new cfg80211 CQM event. The threshold is fixed right now, this may need to be improved in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24 08:10:06 +01:00
mac80211: pass tx info to ieee80211_lost_packet instead of an skb Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:11 +01:00
mac80211: reduce packet loss notifications under load During strong signal fluctuations under high throughput, few consecutive failed A-MPDU transmissions can easily trigger packet loss notification, and thus (in AP mode) client disconnection. Reduce the number of false positives by checking the A-MPDU status flag and treating a failed A-MPDU as a single packet. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-23 20:05:28 +02:00
mac80211: allow driver to handle packet-loss mechanism Based on consecutive msdu failures, mac80211 triggers CQM packet-loss mechanism. Drivers like ath10k that have its own connection monitoring algorithm, offloaded to firmware for triggering station kickout. In case of station kickout, driver will report low ack status by mac80211 API (ieee80211_report_low_ack). This flag will enable the driver to completely rely on firmware events for station kickout and bypass mac80211 packet loss mechanism. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-14 12:48:32 +05:30
mac80211: reduce packet loss notifications under load During strong signal fluctuations under high throughput, few consecutive failed A-MPDU transmissions can easily trigger packet loss notification, and thus (in AP mode) client disconnection. Reduce the number of false positives by checking the A-MPDU status flag and treating a failed A-MPDU as a single packet. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-23 20:05:28 +02:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: add TDLS connection timeout Adding a timeout for tearing down a TDLS connection that hasn't had ACKed traffic sent through it for a certain amount of time. Since we have no other monitoring facility to indicate the existance (or non-existance) of a peer, this patch will cause a peer to be considered as unavailable if for some X time at least some Y packets have all not been ACKed. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-04 08:28:40 +03:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: add TDLS connection timeout Adding a timeout for tearing down a TDLS connection that hasn't had ACKed traffic sent through it for a certain amount of time. Since we have no other monitoring facility to indicate the existance (or non-existance) of a peer, this patch will cause a peer to be considered as unavailable if for some X time at least some Y packets have all not been ACKed. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-04 08:28:40 +03:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: reduce packet loss notifications under load During strong signal fluctuations under high throughput, few consecutive failed A-MPDU transmissions can easily trigger packet loss notification, and thus (in AP mode) client disconnection. Reduce the number of false positives by checking the A-MPDU status flag and treating a failed A-MPDU as a single packet. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-23 20:05:28 +02:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: reduce packet loss notifications under load During strong signal fluctuations under high throughput, few consecutive failed A-MPDU transmissions can easily trigger packet loss notification, and thus (in AP mode) client disconnection. Reduce the number of false positives by checking the A-MPDU status flag and treating a failed A-MPDU as a single packet. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-23 20:05:28 +02:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Fix sta->last_tx_rate setting with no-op rate control devices The sta->last_tx_rate is traditionally updated just before transmitting a frame based on information from the rate control algorithm. However, for hardware drivers with IEEE80211_HW_HAS_RATE_CONTROL this is not performed, as the rate control algorithm is not executed, and because the used rate is not known before the frame has actually been transmitted. This causes atleast a fixed 1Mb/s to be reported to user space. A few other instances of code also rely on this information. Fix this by setting the sta->last_tx_rate in tx_status handling. There, look for last rates entry set by the driver, and use that as value for sta->last_tx_rate. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-22 10:27:48 +03:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: fix an issue in ieee80211_tx_info count field management I noticed a possible issue in the status count field management of the ieee80211_tx_info data structure. In particular, when the AGGR processing is employed, status.rates[].count is set just for the first frame and not for others belonging to the same burst, leading to wrong statistic data in the mac80211 debug file system. Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-06 20:48:15 +02:00
mac80211: Minor optimization in tx status handling ieee80211_tx_status iterates over all tx rates the driver reports back in order to 1) mark tx rates as invalid if the driver cannot have tried that rate 2) find the actually used tx rate for the final retransmission By leaving the for loop when the first invalid rate index is found we can move the rates_idx assignment after the loop and therefore save a few assignments and conditionals. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21 15:07:55 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Minor optimization in tx status handling ieee80211_tx_status iterates over all tx rates the driver reports back in order to 1) mark tx rates as invalid if the driver cannot have tried that rate 2) find the actually used tx rate for the final retransmission By leaving the for loop when the first invalid rate index is found we can move the rates_idx assignment after the loop and therefore save a few assignments and conditionals. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21 15:07:55 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Minor optimization in tx status handling ieee80211_tx_status iterates over all tx rates the driver reports back in order to 1) mark tx rates as invalid if the driver cannot have tried that rate 2) find the actually used tx rate for the final retransmission By leaving the for loop when the first invalid rate index is found we can move the rates_idx assignment after the loop and therefore save a few assignments and conditionals. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21 15:07:55 +01:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac80211: use reset to set header pointer Since offset is zero, it's not necessary to use set function. Reset function is straightforward, and will remove the unnecessary add operation in set function. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-03 01:16:56 +00:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac80211: refactor monitor representation in sdata Insert the u32 monitor flags variable in a new structure that represents a monitor interface. This will allow to add more configuration variables to that structure which will happen in an upcoming change. Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-08-29 23:25:15 +03:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: remove doubled semicolon Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-16 13:27:56 +01:00
mac0211: add a helper function for fixing up tx status rates Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:12 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Retry null data frame for power save. Even if the null data frame is not acked by the AP, mac80211 goes into power save. This might lead to loss of frames from the AP. Prevent this by restarting dynamic_ps_timer when ack is not received for null data frames. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-09 14:50:28 +05:30
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +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: implement uAPSD Add uAPSD support to mac80211. This is probably not possible with all devices, so advertising it with the cfg80211 flag will be left up to drivers that want it. Due to my previous patches it is now a fairly straight-forward extension. Drivers need to have accurate TX status reporting for the EOSP frame. For drivers that buffer themselves, the provided APIs allow releasing the right number of frames, but then drivers need to set EOSP and more-data themselves. This is documented in more detail in the new code itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:33 +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: implement uAPSD Add uAPSD support to mac80211. This is probably not possible with all devices, so advertising it with the cfg80211 flag will be left up to drivers that want it. Due to my previous patches it is now a fairly straight-forward extension. Drivers need to have accurate TX status reporting for the EOSP frame. For drivers that buffer themselves, the provided APIs allow releasing the right number of frames, but then drivers need to set EOSP and more-data themselves. This is documented in more detail in the new code itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-29 16:04:33 +02:00
mac80211: speed up AP probing using nullfunc frames If the nullfunc frame used to probe the AP was not acked, there is no point in waiting for the probe timeout, so advance to the next try (or disconnect) immediately. If we do reach the probe timeout without having received a tx status, the connection is probably really bad and worth disconnecting. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02 21:01:08 +01:00
mac80211: End the MPSP even if EOSP frame was not acked If QoS frame with EOSP (end of service period) subfield=1 sent by local peer was not acked by remote peer, local peer did not end the MPSP. This prevents local peer from going to DOZE state. And if the remote peer goes away without closing connection, local peer continues AWAKE state and wastes battery. Signed-off-by: Masashi Honma <masashi.honma@gmail.com> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-08-02 17:16:57 +09:00
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: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: update last_tx_rate only for data frame Rate controller in firmware may also return the Tx Rate used for management frame that is usually sent as lowest Tx Rate (1Mbps in 2.4GHz). So update the last_tx_rate only if it is data frame. This patch is tested with ath9k_htc. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-02 12:05:09 +08:00
mac80211: Fix sta->last_tx_rate setting with no-op rate control devices The sta->last_tx_rate is traditionally updated just before transmitting a frame based on information from the rate control algorithm. However, for hardware drivers with IEEE80211_HW_HAS_RATE_CONTROL this is not performed, as the rate control algorithm is not executed, and because the used rate is not known before the frame has actually been transmitted. This causes atleast a fixed 1Mb/s to be reported to user space. A few other instances of code also rely on this information. Fix this by setting the sta->last_tx_rate in tx_status handling. There, look for last rates entry set by the driver, and use that as value for sta->last_tx_rate. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-22 10:27:48 +03:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: Fix sta->last_tx_rate setting with no-op rate control devices The sta->last_tx_rate is traditionally updated just before transmitting a frame based on information from the rate control algorithm. However, for hardware drivers with IEEE80211_HW_HAS_RATE_CONTROL this is not performed, as the rate control algorithm is not executed, and because the used rate is not known before the frame has actually been transmitted. This causes atleast a fixed 1Mb/s to be reported to user space. A few other instances of code also rely on this information. Fix this by setting the sta->last_tx_rate in tx_status handling. There, look for last rates entry set by the driver, and use that as value for sta->last_tx_rate. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-22 10:27:48 +03:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: provide per-TID RX/TX MSDU counters Implement the new counters cfg80211 can now advertise to userspace. The TX code is in the sequence number handler, which is a bit odd, but that place already knows the TID and frame type, so it was easiest and least impact there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-21 14:26:31 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: make ieee80211_send_bar available for drivers To properly maintain the peer's block ack window, the driver needs to be able to control the new starting sequence number that is sent along with the BlockAckReq frame. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-20 15:53:55 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: provide per-TID RX/TX MSDU counters Implement the new counters cfg80211 can now advertise to userspace. The TX code is in the sequence number handler, which is a bit odd, but that place already knows the TID and frame type, so it was easiest and least impact there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-21 14:26:31 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Tear down BA session on BAR tx failure As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 16:17:42 +02:00
mac80211: provide per-TID RX/TX MSDU counters Implement the new counters cfg80211 can now advertise to userspace. The TX code is in the sequence number handler, which is a bit odd, but that place already knows the TID and frame type, so it was easiest and least impact there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-21 14:26:31 +01:00
mac80211: fix endian issues and comments for BAR failure handling Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-15 09:37:46 +02:00
mac80211: Tear down BA session on BAR tx failure As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 16:17:42 +02:00
mac80211: fix endian issues and comments for BAR failure handling Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-15 09:37:46 +02:00
mac80211: Tear down BA session on BAR tx failure As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 16:17:42 +02:00
mac80211: fix endian issues and comments for BAR failure handling Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-15 09:37:46 +02:00
mac80211: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +02:00
mac80211: fix endian issues and comments for BAR failure handling Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-15 09:37:46 +02:00
mac80211: Tear down BA session on BAR tx failure As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 16:17:42 +02:00
mac80211: retry sending failed BAR frames later instead of tearing down aggr Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-28 21:11:01 +02:00
mac80211: remove IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL This is basically a revert of: commit 5b632fe85ec82e5c43740b52e74c66df50a37db3 Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Mon Dec 3 12:56:33 2012 +0100 mac80211: introduce IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL We do not need this flag any longer, rt2x00 BAR/BA problem was fixed correctly by wireless-testing commit: commit 84e9e8ebd369679a958200a8baca96aafb2393bb Author: Helmut Schaa <helmut.schaa@googlemail.com> Date: Thu Jan 17 17:34:32 2013 +0100 rt2x00: Improve TX status handling for BlockAckReq frames Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-28 14:42:30 +01:00
mac80211: Tear down BA session on BAR tx failure As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 16:17:42 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: speed up AP probing using nullfunc frames If the nullfunc frame used to probe the AP was not acked, there is no point in waiting for the probe timeout, so advance to the next try (or disconnect) immediately. If we do reach the probe timeout without having received a tx status, the connection is probably really bad and worth disconnecting. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02 21:01:08 +01:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: provide per-TID RX/TX MSDU counters Implement the new counters cfg80211 can now advertise to userspace. The TX code is in the sequence number handler, which is a bit odd, but that place already knows the TID and frame type, so it was easiest and least impact there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-21 14:26:31 +01:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: provide per-TID RX/TX MSDU counters Implement the new counters cfg80211 can now advertise to userspace. The TX code is in the sequence number handler, which is a bit odd, but that place already knows the TID and frame type, so it was easiest and least impact there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-21 14:26:31 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
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: speed up AP probing using nullfunc frames If the nullfunc frame used to probe the AP was not acked, there is no point in waiting for the probe timeout, so advance to the next try (or disconnect) immediately. If we do reach the probe timeout without having received a tx status, the connection is probably really bad and worth disconnecting. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02 21:01:08 +01:00
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: implement packet loss notification For drivers that have accurate TX status reporting we can report the number of consecutive lost packets to userspace using the new cfg80211 CQM event. The threshold is fixed right now, this may need to be improved in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24 08:10:06 +01:00
mac80211: speed up AP probing using nullfunc frames If the nullfunc frame used to probe the AP was not acked, there is no point in waiting for the probe timeout, so advance to the next try (or disconnect) immediately. If we do reach the probe timeout without having received a tx status, the connection is probably really bad and worth disconnecting. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02 21:01:08 +01:00
mac80211: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: add WMM admission control support Use the currently existing APIs between mac80211 and the low level driver to implement WMM admission control. The low level driver needs to report the media time used by each transmitted packet in ieee80211_tx_status. Based on that information, mac80211 will modify the QoS parameters of the admission controlled Access Category when the limit is reached. Once the original QoS parameters can be restored, mac80211 will do so. One issue with this approach is that management frames will also erroneously be downgraded, but the upside is that the implementation is simple. In the future, it can be extended to driver- or device-based implementations that are better. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-10-07 10:38:50 +03:00
mac80211: speed up AP probing using nullfunc frames If the nullfunc frame used to probe the AP was not acked, there is no point in waiting for the probe timeout, so advance to the next try (or disconnect) immediately. If we do reach the probe timeout without having received a tx status, the connection is probably really bad and worth disconnecting. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02 21:01:08 +01:00
mac80211: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: implement packet loss notification For drivers that have accurate TX status reporting we can report the number of consecutive lost packets to userspace using the new cfg80211 CQM event. The threshold is fixed right now, this may need to be improved in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24 08:10:06 +01:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: add TDLS connection timeout Adding a timeout for tearing down a TDLS connection that hasn't had ACKed traffic sent through it for a certain amount of time. Since we have no other monitoring facility to indicate the existance (or non-existance) of a peer, this patch will cause a peer to be considered as unavailable if for some X time at least some Y packets have all not been ACKed. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-04 08:28:40 +03:00
mac80211: move station statistics into sub-structs Group station statistics by where they're (mostly) updated (TX, RX and TX-status) and group them into sub-structs of the struct sta_info. Also rename the variables since the grouping now makes it obvious where they belong. This makes it easier to identify where the statistics are updated in the code, and thus easier to think about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16 17:54:47 +02:00
mac80211: reduce packet loss notifications under load During strong signal fluctuations under high throughput, few consecutive failed A-MPDU transmissions can easily trigger packet loss notification, and thus (in AP mode) client disconnection. Reduce the number of false positives by checking the A-MPDU status flag and treating a failed A-MPDU as a single packet. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-23 20:05:28 +02:00
mac80211: pass tx info to ieee80211_lost_packet instead of an skb Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-19 20:08:11 +01:00
mac80211: implement packet loss notification For drivers that have accurate TX status reporting we can report the number of consecutive lost packets to userspace using the new cfg80211 CQM event. The threshold is fixed right now, this may need to be improved in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24 08:10:06 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Fix accounting of multicast frames Since multicast frames are marked as no-ack, using IEEE80211_TX_STAT_ACK to check if they have been successfully transmitted by the driver is incorrect since a driver can choose to ignore transmission status for no-ack frames. This results in incorrect accounting for such frames. To fix this issue, this patch introduces a new flag that can be used by drivers to indicate error-free transmission of no-ack frames. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> [add a note about not setting the flag for non-no-ack frames] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-12-10 21:26:11 +05:30
mac80211: Make use of ieee80211_is_* functions in tx status path Use ieee80211_is_data, ieee80211_is_mgmt and ieee80211_is_first_frag in the tx status path. This makes the code easier to read and allows us to remove two local variables: frag and type. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-08 13:11:55 +01:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: fix dot11MulticastTransmittedFrameCount tested address dot11MulticastTransmittedFrameCount should be updated according to the DA, which might be different from A1. Checking A1 results in the counter being 0 in case of station, as to-DS data frames use A1 for the BSSID. This behaviour is defined in state machines, specifically in the sta_tx_dcf_3.1d(10) description of 802.11-2012. Signed-off-by: Eliad Peller <eliad@wizery.com> [rewrite commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-12-21 15:25:28 +02:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Make use of ieee80211_is_* functions in tx status path Use ieee80211_is_data, ieee80211_is_mgmt and ieee80211_is_first_frag in the tx status path. This makes the code easier to read and allows us to remove two local variables: frag and type. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-08 13:11:55 +01:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Make use of ieee80211_is_* functions in tx status path Use ieee80211_is_data, ieee80211_is_mgmt and ieee80211_is_first_frag in the tx status path. This makes the code easier to read and allows us to remove two local variables: frag and type. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-08 13:11:55 +01:00
mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS Since these counters can only be read through debugfs, there's very little point in maintaining them all the time. However, even just making them depend on debugfs is pointless - they're not normally used. Additionally a number of them aren't even concurrency safe. Move them under MAC80211_DEBUG_COUNTERS so they're normally not even compiled in. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-22 20:47:28 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Retry null data frame for power save. Even if the null data frame is not acked by the AP, mac80211 goes into power save. This might lead to loss of frames from the AP. Prevent this by restarting dynamic_ps_timer when ack is not received for null data frames. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-09 14:50:28 +05:30
mac80211: convert HW flags to unsigned long bitmap As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-02 21:39:54 +02:00
mac80211: Retry null data frame for power save. Even if the null data frame is not acked by the AP, mac80211 goes into power save. This might lead to loss of frames from the AP. Prevent this by restarting dynamic_ps_timer when ack is not received for null data frames. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-09 14:50:28 +05:30
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: implement wifi TX status Implement the socket wifi TX status error queue reflection in mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-06 14:13:34 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: optimize tx status processing When a cooked monitor interface is active, ieee80211_tx_status() generates a radiotap header for every single frame, even if it wasn't injected and thus won't be sent to a monitor interface. This patch reduces cpu utilization by moving the cooked monitor check a bit earlier, before it generates the rtap header. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-11 16:28:24 +01:00
mac80211: Make use of ieee80211_is_* functions in tx status path Use ieee80211_is_data, ieee80211_is_mgmt and ieee80211_is_first_frag in the tx status path. This makes the code easier to read and allows us to remove two local variables: frag and type. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-08 13:11:55 +01:00
mac80211: optimize tx status processing When a cooked monitor interface is active, ieee80211_tx_status() generates a radiotap header for every single frame, even if it wasn't injected and thus won't be sent to a monitor interface. This patch reduces cpu utilization by moving the cooked monitor check a bit earlier, before it generates the rtap header. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-11 16:28:24 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: optimize tx status processing When a cooked monitor interface is active, ieee80211_tx_status() generates a radiotap header for every single frame, even if it wasn't injected and thus won't be sent to a monitor interface. This patch reduces cpu utilization by moving the cooked monitor check a bit earlier, before it generates the rtap header. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-11 16:28:24 +01:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: Split sending tx'ed frames to monitor interfaces into its own function This allows ieee80211_tx_monitor to be used directly for sending 802.11 frames to all monitor interfaces. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-02 13:23:30 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move TX status handling It's enough code to have its own file, I think. Especially since I'm going to add to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 18:42:47 +01:00
mac80211: allow low level drivers to report packet loss Add API that allows low level drivers to notify mac80211 about TX packet loss. This is useful when there are FW triggers to notify the low level driver about these events. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-18 14:22:28 +03:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move ieee80211_tx_status_noskb below ieee80211_tx_status Makes further cleanups more readable Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:36 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move ieee80211_tx_status_noskb below ieee80211_tx_status Makes further cleanups more readable Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:36 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move ieee80211_tx_status_noskb below ieee80211_tx_status Makes further cleanups more readable Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:36 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move ieee80211_tx_status_noskb below ieee80211_tx_status Makes further cleanups more readable Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:36 +02:00
mac80211: add ieee80211_tx_status_ext This allows the driver to pass in struct ieee80211_tx_status directly. Make ieee80211_tx_status_noskb a wrapper around it. As with ieee80211_tx_status_noskb, there is no _ni variant of this call, because it probably won't be needed. Even if the driver won't provide any extra status info other than what's in struct ieee80211_tx_info already, it can optimize status reporting this way by passing in the station pointer. Signed-off-by: Felix Fietkau <nbd@nbd.name> [use C99 initializers] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:37 +02:00
mac80211: move ieee80211_tx_status_noskb below ieee80211_tx_status Makes further cleanups more readable Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-26 17:11:36 +02:00
mac80211: allow low level drivers to report packet loss Add API that allows low level drivers to notify mac80211 about TX packet loss. This is useful when there are FW triggers to notify the low level driver about these events. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-18 14:22:28 +03:00
mac80211: add helper to free TX skb Drivers that need to drop a frame before it can be transmitted will usually simply free that frame. This is currently fine, but in the future it'll be needed to tell mac80211 about this case, so add a new routine that frees a TX skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-04 11:18:10 +01:00
mac80211: implement wifi TX status Implement the socket wifi TX status error queue reflection in mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-06 14:13:34 +01:00
mac80211: combine status/drop reporting The TX status reporting is done for both the nl80211 report as well as the socket option. The socket option is also reported when an skb is dropped to guarantee that the copy in the IDR tree is freed and status is reported to userspace. However, when a frame is dropped, no nl80211 status is reported. This can cause userspace to stop making progress while waiting for a status notification. Combine the nl80211 and socket option status reporting into a new function and call it in both places -- when the status comes in from the driver and when the skb is dropped. While at it, also simplify the code in the nl80211 portion a bit. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26 15:53:06 +02:00
mac80211: add helper to free TX skb Drivers that need to drop a frame before it can be transmitted will usually simply free that frame. This is currently fine, but in the future it'll be needed to tell mac80211 about this case, so add a new routine that frees a TX skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-04 11:18:10 +01:00
mac80211: call skb_dequeue/ieee80211_free_txskb instead of __skb_queue_purge Fixes more wifi status skb leaks, leading to hostapd/wpa_supplicant hangs. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-10 03:44:14 +01:00