Commit Graph

1035 Commits

Author SHA1 Message Date
Marty Faltesek
0117e78aec mwifiex: toggle carrier state in start_ap/stop_ap.
In uap mode the carrier is not enabled until after the first STA joins.
The carrier triggers the bridge to start its state machine, and if STP
is enabled, it takes 4 seconds as it transitions from disabled to
forwarding. During this time the bridge drops all traffic, and the EAPOL
handshake times out after 3 seconds, preventing stations from joining.

Follow the logic used in mac80211 and start the carrier in start_ap
and disable it in stop_ap. This has a nice benefit of allowing the
first station connection time to be reduced by up to 75% when STP is
in use.

Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 21:00:01 +02:00
Xinming Hu
8785955bbc mwifiex: remove unnecessary NULL check
ra_list cannot be NULL here, so remove the unnecessary NULL check.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:22:08 +03:00
Amitkumar Karwar
fe24372d1b mwifiex: add ndo_validate_addr netdev ops
ndo_validate_addr is set to generic eth_validate_addr() function
used for MAC address validation.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:22:07 +03:00
Ganapathi Bhat
505c5cb82d mwifiex: fix AP VHT behaviour
Even if hostapd configuration file contains VHT parameters,
they were not getting reflected in beacons. The reason is
we are resetting them before starting AP. This patch removes
redundant BSS_STOP and SYS_RESET firmware commands before
starting AP to fix the problem.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:22:06 +03:00
Amitkumar Karwar
46dbe2476c mwifiex: control WLAN and bluetooth coexistence modes
By default our chip will be in spatial coexistence mode.
This patch adds a provision to change it to timeshare mode
via debugfs command.

Enable timeshare coexistence mode
   echo 1 > /sys/kernel/debug/mwifiex/mlan0/timeshare_coex

Go back to spacial coexistence mode
   echo 0 > /sys/kernel/debug/mwifiex/mlan0/timeshare_coex

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:21:29 +03:00
Geliang Tang
a484804b3e mwifiex: fix a comment typo
Just fix a typo in the code comment.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:16:56 +03:00
Amitkumar Karwar
ce03966a16 mwifiex: correction in USB8997 chipset's product ID
For 8897 chipset, mwifiex_usb unnecessarily used to
come into picture when wlan is supposed to be used
via PCIe interface and USB interface is for
bluetooth.

This problem has been resolved for newer chipset by
having separate USB product ids for USB-USB8997 and
PCIe-USB8997 chipset variants. This patch ensures to
use wlan specific product id.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:14:18 +03:00
Amitkumar Karwar
60a188a271 mwifiex: remove USB8897 chipset support
We don't have any customer using this chipset via USB
interface. if both mwifiex_pcie and mwifiex_usb modules
are enabled by user, sometimes mwifiex_usb wins the race
even if user wants wlan interface to be on PCIe and
USB for bluetooth. This patch solves the problem.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-14 14:14:16 +03:00
David S. Miller
9916596742 Major changes:
iwlwifi
 
 * some debugfs improvements
 * fix signedness in beacon statistics
 * deinline some functions to reduce size when device tracing is enabled
 * filter beacons out in AP mode when no stations are associated
 * deprecate firmwares version -12
 * fix a runtime PM vs. legacy suspend race
 * one-liner fix for a ToF bug
 * clean-ups in the rx code
 * small debugging improvement
 * fix WoWLAN with new firmware versions
 * more clean-ups towards multiple RX queues;
 * some rate scaling fixes and improvements;
 * some time-of-flight fixes;
 * other generic improvements and clean-ups;
 
 brcmfmac
 
 * rework code dealing with multiple interfaces
 * allow logging firmware console using debug level
 * support for BCM4350, BCM4365, and BCM4366 PCIE devices
 * fixed for legacy P2P and P2P device handling
 * correct set and get tx-power
 
 ath9k
 
 * add support for Outside Context of a BSS (OCB) mode
 
 mwifiex
 
 * add USB multichannel feature
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Merge tag 'wireless-drivers-next-for-davem-2015-10-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
Major changes:

iwlwifi

* some debugfs improvements
* fix signedness in beacon statistics
* deinline some functions to reduce size when device tracing is enabled
* filter beacons out in AP mode when no stations are associated
* deprecate firmwares version -12
* fix a runtime PM vs. legacy suspend race
* one-liner fix for a ToF bug
* clean-ups in the rx code
* small debugging improvement
* fix WoWLAN with new firmware versions
* more clean-ups towards multiple RX queues;
* some rate scaling fixes and improvements;
* some time-of-flight fixes;
* other generic improvements and clean-ups;

brcmfmac

* rework code dealing with multiple interfaces
* allow logging firmware console using debug level
* support for BCM4350, BCM4365, and BCM4366 PCIE devices
* fixed for legacy P2P and P2P device handling
* correct set and get tx-power

ath9k

* add support for Outside Context of a BSS (OCB) mode

mwifiex

* add USB multichannel feature
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 19:39:18 -07:00
Arnd Bergmann
52f4f91893 mwifiex: avoid gettimeofday in ba_threshold setting
mwifiex_get_random_ba_threshold() uses a complex homegrown implementation
to generate a pseudo-random number from the current time as returned
from do_gettimeofday().

This currently requires two 32-bit divisions plus a couple of other
computations that are eventually discarded as only eight bits of
the microsecond portion are used at all.

We could replace this with a call to get_random_bytes(), but that
might drain the entropy pool too fast if this is called for each
packet.

Instead, this patch converts it to use ktime_get_ns(), which is a
bit faster than do_gettimeofday(), and then uses a similar algorithm
as before, but in a way that takes both the nanosecond and second
portion into account for slightly-more-but-still-not-very-random
pseudorandom number.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:44 -07:00
Arnd Bergmann
e253fb74d6 mwifiex: use ktime_get_real for timestamping
The mwifiex_11n_aggregate_pkt() function creates a ktime_t from
a timeval returned by do_gettimeofday, which is slow and causes
an overflow in 2038 on 32-bit architectures.

This solves both problems by using the appropriate ktime_get_real()
function.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:43 -07:00
Dan Carpenter
1f9c6e1bc1 mwifiex: fix mwifiex_rdeeprom_read()
There were several bugs here.

1)  The done label was in the wrong place so we didn't copy any
    information out when there was no command given.

2)  We were using PAGE_SIZE as the size of the buffer instead of
    "PAGE_SIZE - pos".

3)  snprintf() returns the number of characters that would have been
    printed if there were enough space.  If there was not enough space
    (and we had fixed the memory corruption bug #2) then it would result
    in an information leak when we do simple_read_from_buffer().  I've
    changed it to use scnprintf() instead.

I also removed the initialization at the start of the function, because
I thought it made the code a little more clear.

Fixes: 5e6e3a92b9 ('wireless: mwifiex: initial commit for Marvell mwifiex driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 11:08:50 +03:00
Zhaoyang Liu
735ab6bfc0 mwifiex: complete usb tx data with multi endpoints
This patch do the work to TX data with specific USB
endpoint. At the same time, update data_sent flag
according to multi port status. And is_port_ready
API is added for BSS interface to check if current
used usb data endpoint is available or not.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:49 +03:00
Zhaoyang Liu
7e4e5d2cd0 mwifiex: add usb multi endpoints resync support
This patch add support for usb multi endpoints resync.
Once multi channel event is received from firmware,
update usb_mc_setp flag to block TX data until setup is over.
And available data endpoint will be attached to BSS interface.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:48 +03:00
Zhaoyang Liu
308fe29ef2 mwifiex: add usb tx data multi endpoints support
This patch add support for USB interface to TX data
with different endpoint. And previous TX information
are saved in new designed structure.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:46 +03:00
Zhaoyang Liu
2b0f997db4 mwifiex: add usb multi channel event process support
This patch add multi channel event process for USB multi tx data endpoints.
Driver receives firmware multi channel event only in case that new
connection is setup or interface is disconnect. Different BSS interface
need update used usb endpoint.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:44 +03:00
Zhaoyang Liu
d941444321 mwifiex: move usb specific data_sent update to usb.c
This patch move data_sent flag update to usb.c file.
>From now all data_sent update cases only happened in specific file:
sdio.c, usb.c, pcie.c. Outside ot these files, it is only allowed
to check the value of data_ent.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:43 +03:00
Zhaoyang Liu
d22871db01 mwifiex: fix tx data_sent issue for usb interface
This patch fix missing tx data_sent flag update for usb interface.
Except USB interface, data_sent flag has been updated in specific
file such as sdio.c and pcie.c. So only USB interface type need check
when TX data completed.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:42 +03:00
Amitkumar Karwar
17090beec2 mwifiex: Suppress -ENOSR error for data traffic on USB
We have preallocated buffer pool for Tx data. During high
data traffic, all buffers are submitted to USB and driver needs
to wait until one of the buffers get available for next Tx
packet.

"data: -ENOSR is returned" errors is expected in this case. Let's
lower the priority of this message.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:40 +03:00
Zhaoyang Liu
70c5ad7e20 mwifiex: correct paused tx data packet counter
This patch fixes observed issues while updating counter for
number of paused data packets in wmm queue when trying to
delete packet or delete station entry.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:38 +03:00
Amitkumar Karwar
14d9c11c91 mwifiex: avoid memsetting PCIe event buffer
Preallocated PCIe buffer is being reused for all PCIe interface
events. Physical address of the buffer is shared with firmware
so that it can perform DMA on it. As event length is specified
in the header, there should not be a problem if the buffer gets
overwritten.
We will save some cycles by avoiding memset everytime while
submitting the buffer to firmware.

Fixes: 2728cecdc7d6bf3d21(mwifiex: corrections in PCIe event skb)
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:37 +03:00
Aniket Nagarnaik
17e524b1b6 mwifiex: fix NULL pointer dereference during hidden SSID scan
This NULL pointer dereference is observed during suspend resume
stress test. All pending commands are cancelled when system goes
into suspend state. There a corner case in which host may receive
response for last scan command after this and try to trigger extra
active scan for hidden SSIDs.

The issue is fixed by adding a NULL check to skip that extra scan.

Fixes: 2375fa2b36 (mwifiex: fix unable to connect hidden SSID..)
Cc: <stable@vger.kernel.org> [v4.2+]
Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:36 +03:00
Aniket Nagarnaik
2c3da96126 mwifiex: don't always include ht/vht info in tdls confirm frame
Current TDLS implementation always includes ht/vht information
in tdls setup confirm frame which causes teardown by legacy
peer station after TDLS handshake. We will inclue ht/vht
capabilities in tdls setup confirm frame only if peer station
supports it to fix this problem.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:34 +03:00
Xinming Hu
02421dd3f6 mwifiex: NULL check for cfg80211_inform_bss()
cfg80211_inform_bss would return null in some cases, such as
memory allocation failure.

This patch adds sanity check for this case, to avoid possible
issues when above corner case is hit.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:33 +03:00
Xinming Hu
9a9053c342 mwifiex: fix driver init failure under memory pressure
64k Tx and Rx buffers are allocated during driver initialization
for SDIO level data aggregations. When host is under memory
pressure situation, kzalloc() request for 64k may fail.

We will try allocating 32k buffers and disable our rx single port
aggreagation feature in this situation.

If the allocation still fails, we will disable our sdio multport
aggregation feature as well. In this way, we will transmit and
receive packets one by one, thus reduce the demand for big
memory.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:31 +03:00
Xinming Hu
e3ad3d5b6a mwifiex: minor corrections in multiport aggregation code
This patch includes below changes
1) Check if multiport aggregation feature flag while doing rx
length validation check.
2) Reset buffer size variables when buffers are freed.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:30 +03:00
Zhaoyang Liu
0a252abb6a mwifiex: update amsdu tx packet time stamp
This patch fixes the issue of delay time in A-MSDU tx packet.
In generated new A-MSDU packet, the time stamp is initialized to zero.
Choose the time of first MSDU packet as aggregated packet's time.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:28 +03:00
Xinming Hu
65405c51bb mwifiex: fix typo in del_virtual_intf() function
Interface counters should be incremented in add_virtual_intf()
and decremented in del_virtual_intf() function. This patch
corrects it.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:27 +03:00
Joe Perches
36925e52c5 mwifiex: Make mwifiex_dbg a function, reduce object size
The mwifiex_dbg macro has two tests that could be consolidated
into a function reducing overall object size ~10KB (~4%).

So convert the macro into a function.

$ size drivers/net/wireless/mwifiex/built-in.o* (x86-64 defconfig)
   text	   data	    bss	    dec	    hex	filename
 233102	   8628	   4809	 246539	  3c30b	drivers/net/wireless/mwifiex/built-in.o.new
 243949	   8628	   4809	 257386	  3ed6a	drivers/net/wireless/mwifiex/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:32:46 +03:00
Andrzej Hajda
cc75149859 mwifiex: fix comparison expression
To avoid underflows signed variables should be used in expression.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-22 16:14:32 -07:00
Aniket Nagarnaik
cb9d61e530 mwifiex: claim sdio bus while downloading the firmware
Our 8887 A2 chip can have separate firmware images for
bluetooth and WLAN. We observed an issue during parallel
downloading of these images by btmrvl and mwifiex drivers.

This patch claims sdio bus before starting of the firmware
download in mwifiex and releases it after completion to
fix the problem.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-13 15:35:55 +03:00
chunfan chen
2375fa2b36 mwifiex: fix unable to connect hidden SSID AP on DFS channel
We will check if any hidden SSID found in passive scan channels
and do specific SSID active scan for those channels.

Signed-off-by: chunfan chen <jeffc@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-13 15:34:53 +03:00
Zhaoyang Liu
eee7f1961b mwifiex: add firmware dump support for SD8997
This patch adds firmware dump feature for SD8997 chipset.
The difference here is only one memory type is needed
to save all firmware information. Device dump information
will be uploaded to usersapace file.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-13 15:34:51 +03:00
Zhaoyang Liu
6d85ef00d9 mwifiex: add support for 8997 chipset
This patch adds support for 8997 chipset to mwifiex
with SDIO/PCIe/USB interface.

The corresponding firmware image files are located in:
"mrvl/sd8997_uapsta.bin"
"mrvl/pcie8997_uapsta.bin"
"mrvl/usb8997_uapsta.bin"

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-13 15:34:50 +03:00
Dan Carpenter
3b1f0e8695 mwifiex: usb: return an error if kmalloc fails
The current code returns success if kmalloc fails.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-13 15:33:25 +03:00
Amitkumar Karwar
100a008331 mwifiex: correct TDLS link delete failure message priority
Commit d8d2f19feb ("mwifiex: silence TDLS link delete failure
for nonexistent link") lowers the priority of error message when
TDLS link is already deleted. But it had got increased by
commit acebe8c10a ("mwifiex: change dbg print func to
mwifiex_dbg")

Reported-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-10 22:15:18 +03:00
Amitkumar Karwar
6c63173211 mwifiex: add missing skb_push() in mwifiex_check_uap_capabilties
For PCIe/USB chipsets, preallocated skb buffers are reused for
event handling. mwifiex_check_uap_capabilties() performs
skb_pull(). This patch adds missing skb_push() to restore skb's
data pointer/length.

This bug was introduced by commit debfc60081 ("mwifiex: update
AP WMM settings from BSS_START event")

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:19:23 +03:00
Amitkumar Karwar
2728cecdc7 mwifiex: corrections in PCIe event skb handling
Preallocated event SKBs are getting reused for PCIe chipset.
Their physical addresses are shared with firmware so that
firmware can write data into them.

This patch makes sure that SKB is cleared and length is set to
default while submitting it to firmware.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:14:00 +03:00
Zhaoyang Liu
d788ac2979 mwifiex: fix system crash observed during initialisation
System crash was observed if one of the driver initialisation
commands is timed out. The reason is our timeout handler triggers
firmware dump, meanwhile driver initialisation error paths have
already freed the adapter structure.

Firmware hasn't yet completely initialized. So collecting firmware
dump is not needed in this case. Command timeout handler is
modified in this patch to fix the crash issue.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:13:56 +03:00
Zhaoyang Liu
398750992e mwifiex: fix command timeout for PCIe chipsets
When WLAN interface is up and running, driver unload and
load was causing command timeout error.

We enable Rx data by updating RX ring read pointer in
init_fw_port(). It should be done when FW is completely
intialialised. Command timeout is fixed in this patch by
moving init_fw_port() call to mwifiex_init_fw_complete().

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:13:50 +03:00
Xinming Hu
3afafd6dcc mwifiex: using right aid value for tdls action frame
Variable pos is u8 here, so memcpy is needed to store u16 aid.
At the same time, aid should be platform independent, upper layer
utility(wpa_supplicant,etc.,) parse it as le16, so keep it le16
here.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:13:46 +03:00
Andreas Fenkart
c5bc15fce6 mwifiex: simplify mwifiex_complete_cmd
600f5d909a54("mwifiex: cleanup ioctl wait queue and abstraction layer")
introduced the wakeup_interruptible suppression in mwifiex_complete_cmd
b1a47aa5e1e1("mwifiex: fix system hang issue in cmd timeout error case")
then added wakup_interruptible to mwifiex_cmd_timeout_func the single
place setting a status of ETIMEDOUT.
Instead of doing extra work, using the standard call-chain will have the
same effect:
mwifiex_cancel_pending_ioctl
-> mwifiex_recycle_cmd_node
-> mwifiex_insert_cmd_to_free_q
-> mwifiex_complete_cmd
-> wake_up_interruptible

The difference is that previously the condition was not set to true,
but that's probably just an oversight in b1a47aa5e1 and shouldn't
have any consequence

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:09:13 +03:00
Andreas Fenkart
e9f21d4036 mwifiex: remove CMD_F_CANCELED flag
CMD_F_CANCELED was used to abort mwifiex_process_cmdresp in
case it already started or starts processing the cmd.
But this was probably not working the way intended:
- it is racy: mwifiex_process_cmdresp might already have passed that
  test and is continuing to use the cmd node being recycled
- mwifiex_process_cmdresp repeatedly uses adapter->curr_cmd which
  we just set to NULL
- mwifiex_recycle_cmd_node will clear the flag

The reason why it probably works is that mwifiex_cancel_pending_ioctl
is only called from mwifiex_cmd_timeout_func, where the there is little
chance of a command response still arriving

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:09:09 +03:00
Andreas Fenkart
aeb0300083 mwifiex: remove redundant reset of cmd_wait_q status
mwifiex_cancel_pending_ioctl is called only from
mwifiex_cmd_timeout_func. There the wait_q status is set to
-ETIMEDWAIT before calling this function. Whether we reset the status
to -1 or leave it at -ETIMEDWAIT at end doesn't matter since both
are != 0 hence mean failure

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:09:05 +03:00
Andreas Fenkart
e3a3ef25b8 mwifiex: remove explicit mwifiex_complete_cmd calls
standard call chain when releasing a cmd node:
mwifiex_recycle_cmd_node
-> mwifiex_insert_cmd_to_free_q
-> mwifiex_complete_cmd, if wait_q_enabled

calling mwifiex_complete_cmd explicitly and setting
wait_q_enabled = false is redundant

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:09:02 +03:00
Andreas Fenkart
b4336a282d mwifiex: sdio: reset adapter using mmc_hw_reset
Since 1fb654fd97ff("mmc: sdio: add reset callback to bus operations"),
sdio cards can be power cycled using mmc_hw_reset.
The use mmc_remove_host/mmc_add_host is discouraged, because these are
internal functions to the mmc core and should only be used by mmc hosts

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-06 10:05:32 +03:00
Aniket Nagarnaik
e79801ffe9 mwifiex: correct p2p and station interface counters
While changing interface type from p2p client or p2p go to
station, we should update counters for p2p interface and
station interface. Also calling mwifiex_cfg80211_deinit_p2p
method instead of mwifiex_cfg80211_init_p2p_client method to
deinit p2p interface.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-21 18:09:53 +03:00
Aniket Nagarnaik
0c6303cc06 mwifiex: use maximum ssid length as 0xfe for p2p
0xfe is basically a magic number used to ask firmware match
provided string in a SSID. In this case, firmware will
return scan results containing"DIRECT-" string.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-21 18:09:49 +03:00
Aniket Nagarnaik
40d7412b56 mwifiex: add bss mode TLV to extended scan command
We are setting BSS mode as ANY so that firmware will provide
all types of scan entries.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-21 18:09:47 +03:00
Aniket Nagarnaik
ae86c587b5 mwifiex: fix for p2p broken link
This patch fixes following issues in p2p code paths.

1) bss role, bss type and connection type was not set correctly
for p2p GO and p2p client at couple of places.
2) Driver appends a proprietary header to management frames
which will be parsed by our firmware. Later while informing
TX status to cfg80211, modified frame buffer was passed to
cfg80211_mgmt_tx_status() instead of original one.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-21 16:57:20 +03:00