The code is clean, there are users of it, so it doesn't belong in
staging anymore, move it to drivers/misc/.
Cc: Steve Underwood <steveu@coppice.org>
Cc: David Rowe <david@rowetel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Aring says:
====================
6lowpan: reimplementation of fragmentation handling
this patch series reimplementation the fragmentation handling of 6lowpan
accroding to rfc4944 [1].
The first big note is, that the current fragmentation behaviour isn't rfc
complaint. The main issue is a wrong datagram_size value which needs to be:
datagram_size = ipv6_payload + ipv6 header + (maybe compressed transport header,
currently only udp is supported)
but the current datagram_size value is calculated as:
datagram_size = ipv6_payload
Fragmentation work in a linux<->linux communication only.
Why reimplementation?
I reimplemted the reassembly side only. The current behaviour is to allocate a
skb with the reassembled size and hold all fragments in a list, protected by a
spinlock. After we received all fragments (detected by the sum of all fragments,
it begins to place all fragments into the allocated skb).
This reassembly implementation has some race condition. Additional I make it more
rfc complaint. The current implementation match on the tag value inside the frag
header only, but rfc4944 says we need to match on dst addr(mac), src addr(mac),
tag value, datagram_size value. [2]
The new reassembly handling use the inet_frag api (I mean the callback interface
of ipv6 and ipv4 reassembly). I looked into ipv6 and wanted to see how ipv6 is
dealing with reassembly, so I based my code on this implementation.
On the sending side to generate the fragments I improved the current code to use
the nearest 8 divided payload. (We can do that, because the mac layer has a
dynamic size, so it depends on mac_header how big we can do the payload).
Of course I fix also the reassembly/sending side to be rfc complaint now.
Regards
Alexander Aring
[1] http://tools.ietf.org/html/rfc4944
[2] http://tools.ietf.org/html/rfc4944#section-5.3
changes since v2:
- rework checkpatch code style issue patch.
Merge two pr_debugs into one pr_debug.
changes since v3:
- rename 6lowpan.ko to 6lowpan_rtnl.c in commit msg of patch 5/8.
changes since v4:
- Add a new patch 2/8 to introduce lowpan_uncompress_size function. Also
improving this function a little bit.
- Add a new patch 4/8 to change tag value to __be16.
- use skb_header_reset function on FRAG1 only, which should have the
lowpan header. See lowpan_get_frag_info function. (slightly improving
of fragmentation header parsing).
- changes types of variables to u16 in lowpan_skb_fragmentation.
- use lowpan_uncompress_size instead of storing necessary information
in skb control block, this can be destroyed after dev_queue_xmit call.
Thanks David for this hint.
- remove Tested-by: Martin Townsend <martin.townsend@xsilon.com>, because
too many funcionality change.
changes since v5:
- handle lowpan_addr_mode_size with lookup table.
changes since v6:
- remove unnecessary parameter in lowpan_frag_queue.
- fix commit message in patch 8/8 which included a describtion of adding the
lownpan_uncompress_size function. This was splitted in a seperate patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch drops the current way of 6lowpan fragmentation on receiving
side and replace it with a implementation which use the inet_frag api.
The old fragmentation handling has some race conditions and isn't
rfc4944 compatible. Also adding support to match fragments on
destination address, source address, tag value and datagram_size
which is missing in the current implementation.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds necessary ieee802154 6lowpan namespace to provide the
inet_frag information. This is a initial support for handling 6lowpan
fragmentation with the inet_frag api.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Detected with:
./scripts/checkpatch.pl --strict -f net/ieee802154/6lowpan_rtnl.c
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We have a 6lowpan.c file and 6lowpan.ko file. To avoid confusing we
should move 6lowpan.c to 6lowpan_rtnl.c. Then we can support multiple
source files for 6lowpan module.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fix the fragmentation on sending side according to rfc4944.
Also add improvement to use the full payload of a PDU which calculate
the nearest divided to 8 payload length for the fragmentation datagram
size attribute.
The main issue is that the datagram size of fragmentation header use the
ipv6 payload length, but rfc4944 says it's the ipv6 payload length inclusive
network header size (and transport header size if compressed).
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch add a lookup function for uncompressed 6LoWPAN header
size. This is needed to estimate the real size after uncompress the
6LoWPAN header.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds a 6lowpan fragmentation struct into cb of skb which
is necessary to hold fragmentation information.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It hasn't been worked on in a very long time, and the original author
has moved on to a different product as this one is no longer being made.
So remove the driver. If someone wants to resurect it, and clean it up
and get it merged to the "proper" part of the kernel, this commit can be
reverted.
Cc: Teddy Wang <teddy.wang@siliconmotion.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
update aliases for the ssi clocks ssi_ssr_fck, ssi_sst_fck and ssi_ick
to make them consistent for omap34xx and omap36xx. This makes it
possible to reference the clocks from generic omap3 dts files.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use devm_ioremap_resource() in order to make the code simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use devm_ioremap_resource() in order to make the code simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds a devicetree node for the backup battery regulator.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit 57f89bfa21 ("network: Allow af_packet to transmit +4 bytes
for VLAN packets.") added the possibility for non-mmaped frames to
send extra 4 byte for VLAN header so the MTU increases from 1500 to
1504 byte, for example.
Commit cbd89acb9e ("af_packet: fix for sending VLAN frames via
packet_mmap") attempted to fix that for the mmap part but was
reverted as it caused regressions while using eth_type_trans()
on output path.
Lets just act analogous to 57f89bfa21 and add a similar logic
to TX_RING. We presume size_max as overcharged with +4 bytes and
later on after skb has been built by tpacket_fill_skb() check
for ETH_P_8021Q header on packets larger than normal MTU. Can
be easily reproduced with a slightly modified trafgen in mmap(2)
mode, test cases:
{ fill(0xff, 12) const16(0x8100) fill(0xff, <1504|1505>) }
{ fill(0xff, 12) const16(0x0806) fill(0xff, <1500|1501>) }
Note that we need to do the test right after tpacket_fill_skb()
as sockets can have PACKET_LOSS set where we would not fail but
instead just continue to traverse the ring.
Reported-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Ben Greear <greearb@candelatech.com>
Cc: Phil Sutter <phil@nwl.cc>
Tested-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The last time tegra_defconfig was rebuilt, various LEDs options were
somehow selected by other options, and hence their entries in
tegra_defconfig were removed by "make savedefconfig". However, for some
reason this is no longer happening, so we need to add the entries back
into tegra_defconfig so the they are enabled in .config.
Fixes: db079b1811 ("ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS)"
Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
xenbus_bind_evtchn() has no callers so remove it.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Since bind_evtchn_to_cpu() is always called after an event channel is
bound, there is no need to call it after closing an event channel.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
resend_irq_on_evtchn() was only used by ia64 (which no longer has Xen
support).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
When I looked at this issue https://lkml.org/lkml/2013/11/21/158, I found that
frontswap_selfshrink() doesn't work as expected sometimes.
Pages are continuously added to frontswap and gotten back soon. It's a waste of
cpu time and increases the memory pressue of Guest OS.
Take an example.
First time in frontswap_selfshrink():
1. last_frontswap_pages = cur_frontswap_pages = 0
2. cur_frontswap_pages = frontswap_curr_pages() = 100
When 'frontswap_inertia_counter' decreased to 0:
1. last_frontswap_pages = cur_frontswap_pages = 100
2. cur_frontswap_pages = frontswap_curr_pages() = 100
3. call frontswap_shrink() and let's assumption that 10 pages are gotten back
from frontswap.
4. now frontswap_curr_pages() is 90.
If then memory is not enough in Guest OS and 9 more pages(smaller than gotten
back) added to frontswap.
Now frontswap_curr_pages() is 99 and we don't expect to get back more pages from
frontswap because geust os is under memory pressure.
But next time in frontswap_selfshrink():
1. last_frontswap_pages is set to the old value of cur_frontswap_pages(still
100)
2. cur_frontswap_pages(99) is still smaller than last_frontswap_pages.
3. call frontswap_shrink() and continue to get back pages from frontswap!!
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Include appropriate header file in xen/pcpu.c because include/xen/acpi.h
contains prototype declaration of functions defined in the file.
This eliminates the following warning in xen/pcpu.c:
drivers/xen/pcpu.c:336:6: warning: no previous prototype for ‘xen_pcpu_hotplug_sync’ [-Wmissing-prototypes]
drivers/xen/pcpu.c:346:5: warning: no previous prototype for ‘xen_pcpu_id’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Mark function as static in xen/platform-pci.c because it is not used
outside this file.
This eliminates the following warning in xen/platform-pci.c:
drivers/xen/platform-pci.c:48:15: warning: no previous prototype for ‘alloc_xen_mmio’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
The rfc1002 length actually includes a type byte, which we aren't
masking off. In most cases, it's not a problem since the
RFC1002_SESSION_MESSAGE type is 0, but when doing a RFC1002 session
establishment, the type is non-zero and that throws off the returned
length.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
couple immutable biovec fixups for dm mirror, and a few dm-thin fixes.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTEK7qAAoJEMUj8QotnQNav50IAL7v1pOZoBdwohTwAgIIJZoC
2g49vowx+QP8O7uDiKeO5a+tG3hfaXA0Vq7RGmPfR1HsQjwu4hNu8DXJub3ajfKs
THAKrjlARTCkntoIYdg3uYWYqhh/J3aJuR0ToUboQ/sCyieDKQ/sxQA7VlADowO/
2wsmf7jQcIruv/ZjfBEhKgGcOooOBy/A6sH7YkfHjuKwpcXId2QpQ+vKBdSBx6/A
lqmGBNLb0agbCr8u4I+kmRyxwETD76VEE5RY+zCpXAgzFx41RW/lmxUHMZoxEZwH
KJHqcbHbIiwCzehfO2Qhq8X/hs8gP/Ws0T53vU7qOGkk3yyc7TE/8Y/bSXSynZY=
=3YvF
-----END PGP SIGNATURE-----
Merge tag 'dm-3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"A few dm-cache fixes, an invalid ioctl handling fix for dm multipath,
a couple immutable biovec fixups for dm mirror, and a few dm-thin
fixes.
There will likely be additional dm-thin metadata and data resize fixes
to include in 3.14-rc6 next week.
Note to stable-minded folks: Immutable biovecs were introduced in
3.14, so the related fixups for dm mirror are not needed in stable@
kernels"
* tag 'dm-3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix truncation bug when mapping I/O to >2TB fast device
dm thin: allow metadata space larger than supported to go unused
dm mpath: fix stalls when handling invalid ioctls
dm thin: fix the error path for the thin device constructor
dm raid1: fix immutable biovec related BUG when retrying read bio
dm io: fix I/O to multiple destinations
dm thin: avoid metadata commit if a pool's thin devices haven't changed
dm cache: do not add migration to completed list before unhooking bio
dm cache: move hook_info into common portion of per_bio_data structure
It's a bad habit to get a higher volume of fixes often lately, but
things happen again. All commits found here are real bug fixes,
and are mostly trivial. Most of changes in ASoC are the fixes for
enum items due to the wrong API usages, in addition to a few DAPM
mutex deadlock and other fixes. In HD-audio, only fixups for HP
laptops. Although diffstat shows much, the changes are simple:
there are just so many different device entries there.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=nvm5
-----END PGP SIGNATURE-----
Merge tag 'sound-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"It's a bad habit to get a higher volume of fixes often lately, but
things happen again.
All commits found here are real bug fixes, and are mostly trivial.
Most of changes in ASoC are the fixes for enum items due to the wrong
API usages, in addition to a few DAPM mutex deadlock and other fixes.
In HD-audio, only fixups for HP laptops. Although diffstat shows
much, the changes are simple: there are just so many different device
entries there"
* tag 'sound-3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: sta32x: Fix wrong enum for limiter2 release rate
ASoC: da732x: Mark DC offset control registers volatile
ALSA: hda/realtek - Add more entry for enable HP mute led
ALSA: hda - Add a fixup for HP Folio 13 mute LED
ASoC: wm8958-dsp: Fix firmware block loading
ASoC: sta32x: Fix cache sync
ALSA: hda/realtek - Add more entry for enable HP mute led
ASoC: dapm: Add locking to snd_soc_dapm_xxxx_pin functions
Input - arizona-haptics: Fix double lock of dapm_mutex
ASoC: wm8400: Fix the wrong number of enum items
ASoC: isabelle: Fix the wrong number of items in enum ctls
ASoC: ad1980: Fix wrong number of items for capture source
ASoC: wm8994: Fix the wrong number of enum items
ASoC: wm8900: Fix the wrong number of enum items
ASoC: wm8770: Fix wrong number of enum items
ASoC: sta32x: Fix array access overflow
ASoC: dapm: Correct regulator bypass error messages
virtualization on Intel is broken in 3.13 and fixed by this
pull request.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=zQTn
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Three x86 fixes and one for ARM/ARM64.
In particular, nested virtualization on Intel is broken in 3.13 and
fixed by this pull request"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm, vmx: Really fix lazy FPU on nested guest
kvm: x86: fix emulator buffer overflow (CVE-2014-0049)
arm/arm64: KVM: detect CPU reset on CPU_PM_EXIT
KVM: MMU: drop read-only large sptes when creating lower level sptes
omap3_noncore_dpll_set_rate forces a reparent to the same clk_ref
for every call that takes place. This is an can be done only if a change
is detected.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Printing with unsigned long rates with %ld gives wrong result if the
rate is high enough. Fix this by using %lu.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
AM43xx has a spinlock module which is identical to the
one present on AM33xx. Register the spinlock ocp_if link
so that the spinlock hwmod and associated omap_device can
be instantiated, and the runtime pm API could be used by
the OMAP hwspinlock driver.
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Since commit 65aa94b204 (ARM: OMAP4: clockdomain/CM code: Update supported
transition modes), on OMAP4, all CLKDMs support HW_AUTO so this is used
instead of SW_SLEEP for the idling of clockdomains. However, additional
SoCs now leverage the OMAP4 clockdomain code so update it to use SW_SLEEP
if the clockdomain data specifies that the CLKDM has the
CLKDM_CAN_FORCE_SLEEP flag set rather than using HW_AUTO for both cases.
Without this patch, clockdomain handling is broken on AM43xx and no
clockdomains are actually being put into idle on this platform. Any
attempt to idle them results in the HW_AUTO value (0x3) being written
to them with no apparent effect.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[paul@pwsan.com: added extra explanatory text from patch set intro]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Add restart hook so that AM4372 builds can restart the platform.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a few more powerpc fixes for 3.14.
Most of these are also CC'ed to stable and fix bugs in new
functionality introduced in the last 2 or 3 versions"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/powernv: Fix indirect XSCOM unmangling
powerpc/powernv: Fix opal_xscom_{read,write} prototype
powerpc/powernv: Refactor PHB diag-data dump
powerpc/powernv: Dump PHB diag-data immediately
powerpc: Increase stack redzone for 64-bit userspace to 512 bytes
powerpc/ftrace: bugfix for test_24bit_addr
powerpc/crashdump : Fix page frame number check in copy_oldmem_page
powerpc/le: Ensure that the 'stop-self' RTAS token is handled correctly
The suspend callback first sets the suspend flag used in the driver
but after that the actual suspend is done, which may fail. Reset the
flag upon suspend failure.
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Even if the device is changed to 1X1 mode, data is sent with
higher MCS rates after association.
This patch fixes the problem by updating MCS information field
in HT capability when antenna setting changes so that correct
information will be advertised in association and probe request.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Command timeout happens when firmware goes into bad state.
There is no chance that next command will be successful after
this. Hence we will maintain a flag instead of count.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We already have one in mwifiex_adapter structure.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch adds a check in command preparation routine.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Instead of allocating a scatter-gather table for every transmit
reuse a pre-allocated table. The transmit path will be faster by
taking out this allocation.
Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
There is a mismatch between the mcs index(0-7) reported to cfg80211
and the actual mcs index(0-15) in use. This patch resolves the mismatch
by setting mcs info with the number of chains read from FW.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Deauth is sent to AP when the device is acting as station at
shutdown time. Similarly we should stop AP operation also.
mwifiex_deauthenticate() takes care closing the connection
based on provided interface type.
Add a new function to simplify the code.
Reported-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We skip downloading other commands after FUNC_SHUTDOWN is queued
during driver unload. Main thread should be woken up each time
after freeing skipped command so that FUNC_SHUTDOWN gets served
in case if there are other pending commands before FUNC_SHUTDOWN.
Also, call mwifiex_complete_cmd() only for synchronous commands.
Reported-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Maithili Hinge <maithili@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mwifiex_cancel_pending_ioctl() and
mwifiex_cancel_all_pending_cmd() are called in command timeout
and driver unload paths respectively.
If scan operation is in progress, we should abort it smoothly.
Reported-by: Tim Shepard <shep@alum.mit.edu>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Currently default Tx buffer size configured to firmware is 2K
for all chipsets. This patch changes it to 4K for SD/PCIe/USB
8897 chipsets as per firmware requirements.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
There is a race condition while queuing synchronous command and
asynchronous command requested from different threads, because
the wait_q_enabled flag is set based on a global variable
cmd_wait_q_required.
The issue is fixed by removing this global variable and using a
unified function with an argument 'sync' passed into the
function.
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>