Commit Graph

27113 Commits

Author SHA1 Message Date
Seraphime Kirkovski 57bcc81d52 iwlwifi: dvm: remove unused defines
Those constants have been unused for quite some time now.

Signed-off-by: Seraphime Kirkovski <kirkseraph@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:44 +03:00
Johannes Berg c67a3d0502 iwlwifi: mvm: byte-swap constant instead of variable
Convention has it to byte-swap the constant instead of the variable
when doing bit checks. This also generates better code when the swap
is actually needed, since the constant can be swapped at compile-time.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:44 +03:00
Johannes Berg c8c017a6ff iwlwifi: mvm: check family instead of new TX API for workarounds
There are two workarounds because RSS is currently broken on A000
devices due to firmware issues, but checking for the new TX API
doesn't really make sense. Check the hardware family instead of
the new TX API - there's nothing better to check since it's just
a temporary workaround.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:44 +03:00
Johannes Berg 7d6222e270 iwlwifi: mvm: add and use iwl_mvm_has_unified_ucode()
This may need to be refined later, but for now using this,
even with the TODO, is better than checking "has new TX API".

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg b37ca87f93 iwlwifi: fw api: fix various kernel-doc warnings
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg d172a5eff6 iwlwifi: reorganize firmware API
Apart from DVM, all firmware uses the same base API, and there's
code outside iwlmvm that needs to interact with it. Reflect this
in the source better and reorganize the firmware API to a new
fw/api/ directory.

While at it, split the already pretty large fw-api.h file into a
number of smaller files, going from almost 3k lines in there to
a maximum number of lines less than 1k.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg 7174beb60c iwlwifi: refactor firmware debug code
Split out the firmware debug code to be more general, so that it
can be used by different subdrivers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg 702e975d6a iwlwifi: track current firmware image in common code
Track the current firmware image in the common code instead
of in the opmode so that later patches can access it there
in a common way.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg d0b813fcdc iwlwifi: refactor shared mem parsing
Refactor the shared memory command parsing into common code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Johannes Berg 235acb1894 iwlwifi: refactor out paging code
Refactor the paging code from mvm to be used by different opmodes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:41:43 +03:00
Tzipi Peres 558f479f68 iwlwifi: add the new 9000 series PCI IDs
Add two PCI IDs for the 9160 series.
Add five PCI IDs for the 9260 series.
Add one PCI IDs for the 9270 series.
Add seven PCI IDs for the 9460 series.
Add five PCI IDs for the 9560 series.

Signed-off-by: Tzipi Peres <tzipi.peres@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:26:17 +03:00
Naftali Goldstein 8addabf8e6 iwlwifi: mvm: set the RTS_MIMO_PROT bit in flag mask when sending sta to fw
Set the STA_FLG_RTS_MIMO_PROT bit in station_flags_msk of the add sta
command, so that when smps mode changes, the FW will know about it.

In particular, in AP mode, clients are added upon receival of an auth
request, at which point there's no knowledge of the client's smps mode.
When the assoc request arrives, the add_sta command is resent to modify
the station parameters. At this point the driver knows the smps mode,
but since the corresponding bit in the mask is not set, the fw doesn't
update this field so there's no rts protection for mimo.

Fixes: 5bc5aaad40 ("iwlwifi: mvm: set up initial SMPS/NSS station info")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:18:51 +03:00
Haim Dreyfuss e9fb92e13d iwlwifi: fix fw_pre_next_step to apply also for C step
C step NICs should use the latest FW (currently B step).
Correct the condition to make C step NICs advanced its default FW name
to the latest one.
Also rename _next_ to b_or_c to avoid confusion.

Fixes: 5da083d192 ("iwlwifi: add support for 9000 HW B-step NICs")
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 12:05:09 +03:00
Gregory Greenman 87f55616f8 iwlwifi: mvm: rs: fix TLC statistics collection
Statistics should be collected according to the actual rate a
frame/aggregation was transmitted and not according to the initial rate
from the last LQ command (these rates are different if the frames were
retransmitted at a lower rate from the rate scale table).

This is needed to remove throughput degradation.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 11:51:02 +03:00
Gregory Greenman 9465c3f8ba iwlwifi: mvm: set A-MPDU bit upon empty BA notification from FW
The bit was set only if there was at least one reclaimed frame in an
aggregation. It's important to set it also in the case that the whole
A-MPDU was lost, otherwise rate scaling statistics will not be
updated correctly. Thus, set it always in ba notification handler.

This fixes a throughput degradation of about 20% in certain scenarios
with multiple streams on 11ac.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 11:50:30 +03:00
Emmanuel Grumbach 92b0f7b26b iwlwifi: split the regulatory rules when the bandwidth flags require it
When we create a regulatory domain out of an MCC
notification, we need to make sure that all the channels
in the rule have the exact same properties.
The current code mixes channel 36 and 40 although 36 can be
a control channel with HT40+ (36, 40) whereas 40 can't be
a control channel with HT40+ since  (40, 44) is invalid.

Because of that, cfg80211 would allow to connect in 40MHz
to APs that are configured to channel 40 HT40+ and that made
our firmware assert.

Fix this by checking the bandwidth flags before taking the
decision if the rule should be split.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=195299 partly.

Fixes: af45a9003f ("iwlwifi: create regdomain from mcc_update_cmd response")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 11:19:13 +03:00
Emmanuel Grumbach 58877d7428 iwlwifi: add TLV for MLME offload firmware capability
The firmware now adds a new DWORD for the MLME offload's
capability even on firmware versions that don't support
it.
Add the TLV bit to avoid getting the print:
capa flags index 3 larger than supported by driver.

This fixes the bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=196195

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 11:10:12 +03:00
Emmanuel Grumbach 3f25bb4b7f iwlwifi: mvm: fix TCP CSUM offload with WEP and A000 series
When we enabled TCP checksum offload, we need to tell the
firmware where the IP header starts. If we have an IV, then
we need to adapt that value since the IV is placed before
the SNAP header. This is true only for cases where the
driver adds the IV, not the WEP case in which the IV is
added by the firmware itself.

On A000 devices series, the IV is always added by the
device.

Fix this.

Fixes: 5e6a98dc48 ("iwlwifi: mvm: enable TCP/UDP checksum support for 9000 family")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-08-01 11:02:54 +03:00
Dan Carpenter d28ac7be15 rtlwifi: rtl8821ae: Fix HW_VAR_NAV_UPPER operation
The cast here is wrong.  We want to cast the pointer but we accidentally
do a no-op cast of the value.  We normally want to set us_nav_upper to
WIFI_NAV_UPPER_US (30000) but because of this bug we instead set it to
184 on little endian systems and 0 on big endian ones.

Fixes: 3c05bedb5f ("Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:42:59 +03:00
Souptick Joarder f2764f61fa rtlwifi: Fix memory leak when firmware request fails
This patch will fix memory leak when firmware request fails

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:42:25 +03:00
Souptick Joarder 4de95fc5fa rtlwifi: Remove unused dummy function
Removing unused dummy function

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:41:55 +03:00
Souptick Joarder f81372ed8b rtlwifi: remove dummy function call
_rtl92cu_init_usb_aggregation() can be removed as it is dummy one

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:41:05 +03:00
Ping-Ke Shih 58438d9ae1 rtlwifi: move IS_HARDWARE_TYPE_xxx checker to wifi.h
Use rtlpriv instead of rtlhal as argument, so driver and btcoex use
the same definitions.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:38 +03:00
Ping-Ke Shih e7c528615e rtlwifi: Uses addr1 instead DA to determine broadcast and multicast addr.
We should check addr1 to indicate a packet as broadcast or multicast
in tx desc. An obvious example, a STA transmit an *unicast* ARP packet
where addr1 and DA are the addresses of AP and broadcast respectively.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:37 +03:00
Ping-Ke Shih 6ec9dfbc05 rtlwifi: Rename rtl_desc92_rate to rtl_desc_rate
This is a common enumeration, so we use a common name.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:37 +03:00
Ping-Ke Shih 66970e38e5 rtlwifi: Update 8723be new phy parameters and its parser.
There are new PHY table values for the RTL8723BE. The changes require
new parsing code.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:36 +03:00
Ping-Ke Shih ca0e657bda rtlwifi: add amplifier type for 8812ae
With correct amplifier_type, the phy praser can choose correct parameters.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:36 +03:00
Ping-Ke Shih 881d53ab1f rtlwifi: Add board type for 8723be and 8192ee
With correct board_type, the phy praser can choose correct parameters.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:35 +03:00
Ping-Ke Shih 6aad6075cc rtlwifi: Add BT_MP_INFO to c2h handler.
We use H2C to ask BT's status, and C2H will return the status.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:35 +03:00
Ping-Ke Shih 11f35c9504 rtlwifi: Fill in_4way field by driver
Because it isn't always correct to use EAPOL to check 4-way,
we add a timer to handle exception.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:16:33 +03:00
Colin Ian King fcc870d76a wl3501_cs: fix spelling mistake: "Insupported" -> "Unsupported"
Trivial fix to spelling mistake in printk message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:06:31 +03:00
Arvind Yadav e66d70b789 brcmfmac: constify pci_device_id
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:03:46 +03:00
Colin Ian King af643fe9bb zd1211rw: fix spelling mistake 'hybernate' -> 'hibernate'
Trivial fix to spelling mistake in PDEBUG debug message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:02:41 +03:00
Dan Williams 185ffc1948 ipw2100: don't return positive values to PCI probe on error
Causes the PCI stack to complain, and then eventually call the
PCI remove function, which ipw2100 is not expecting.  It then
tries to unregister an already-released netdev and other nasty
things, leading to a panic.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1185518

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 18:01:43 +03:00
Colin Ian King 17830147c4 mwifiex: fix spelling mistake: "Insuffient" -> "Insufficient"
Trivial fix to spelling mistake in mwifiex_dbg debug message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:52:33 +03:00
Colin Ian King c55971726c mwifiex: usb: fix spelling mistake: "aggreataon"-> "aggregation"
Trivial fix to spelling mistake in aggr_ctrl module parameter
message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:52:09 +03:00
Xinming Hu 9e467c52ae mwifiex: disable uapsd in tdls config
Tdls uapsd support capability is default disabled during
tdls setup, correspondingly it should also been disabled
in tdls config.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Zhiyuan Yang <yangzy@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:51:49 +03:00
Dan Carpenter fe0c94be77 mwifiex: usb: unlock on error in mwifiex_usb_tx_aggr_tmo()
We need to unlock if mwifiex_usb_prepare_tx_aggr_skb() fails.

Fixes: a2ca85ad72 ("mwifiex: usb: add timer to flush aggregation packets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:50:56 +03:00
Jeffy Chen f101d9649c mwifiex: uninit wakeup info in the error handling
We inited wakeup info at the beginning of mwifiex_add_card, so we need
to uninit it in the error handling.

It's much the same as what we did in:
36908c4 mwifiex: uninit wakeup info when removing device

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:50:13 +03:00
Shawn Lin f46a5b0156 mwifiex: fix compile warning of unused variable
We got a compile warning shows below:

drivers/net/wireless/marvell/mwifiex/sdio.c: In function
'mwifiex_sdio_remove':
drivers/net/wireless/marvell/mwifiex/sdio.c:377:6: warning: variable
'ret' set but not used [-Wunused-but-set-variable]

Per the code, it didn't check if mwifiex_sdio_read_fw_status
finish successfully. We should at least check the return of
mwifiex_sdio_read_fw_status, otherwise the following check of
firmware_stat and adapter->mfg_mode is pointless as the device
is probably dead.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:49:48 +03:00
Brian Norris 0bc03cfd82 mwifiex: drop num CPU notice
This print isn't very useful. It's also different between
mwifiex_add_card() and mwifiex_reinit_sw(), and I'd like to consolidate
them eventually.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:55 +03:00
Brian Norris 2d98cfd17e mwifiex: keep mwifiex_cancel_pending_ioctl() static
It has some scary comments about "only being called" from the timeout
handler, so let's help keep it that way.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:55 +03:00
Brian Norris 43a0c9aea6 mwifiex: pcie: remove unnecessary 'pdev' check
'card->dev' is initialized once and is never cleared. Drop the
unnecessary "safety" check, as it simply obscures things, and we don't
do this check everywhere (and therefore it's not really "safe").

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:54 +03:00
Brian Norris 2f47150ab3 mwifiex: pcie: disable device DMA before unmapping/freeing buffers
In testing the mwifiex reset code path, I've noticed KASAN complaining
about some "overwritten poison values" in our RX buffer descriptors.
Because KASAN didn't notice this at the time of a CPU write, this seems
to suggest that the device is writing to this memory.

This makes a little sense, because when resetting, we don't necessarily
expect the device to be responsive, so we don't have a chance to disable
everything cleanly.

We can at least take the precaution of disabling DMA for the device
though, and in my testing that seems to clear up this particular issue.

This patch reorders the removal path so that we disable the device
*before* releasing our last PCIe buffers, and it clears/sets the bus
master feature from the PCI device when resetting.

Along the way, remove the insufficient (and confusing) error path in
mwifiex_pcie_up_dev() (it doesn't unwind things well enough, and it
doesn't propagate its errors upward anyway).

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:54 +03:00
Brian Norris 37680819c6 mwifiex: debugfs: allow card_reset() to cancel things
The card_reset() implementation should be setting our state flags and
cancelling commands for us (i.e., in mwifiex_shutdown_drv()), so let's
not do it here.

Also, this debugfs file is useful for testing and debugging the reset
feature, so we shouldn't do extra preparatory steps here, as that might
cause different reset behavior, which could either cause new bugs or
paper over existing ones that this debug feature should otherwise help
us catch.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:53 +03:00
Brian Norris 87a602126a mwifiex: pcie: unify MSI-X / non-MSI-X interrupt process
After removing the interrupt loop in commit 5d5ddb5e0d ("mwifiex:
pcie: don't loop/retry interrupt status checks"), there is practically
zero difference between mwifiex_process_pcie_int() (which handled legacy
PCI interrupts and MSI interrupts) and mwifiex_process_msix_int() (which
handled MSI-X interrupts). Let's add the one relevant line to
mwifiex_process_pcie_int() and kill the copy-and-paste.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:53 +03:00
Brian Norris 605db27f74 mwifiex: pcie: remove unnecessary masks
After removing the interrupt loop in commit 5d5ddb5e0d ("mwifiex:
pcie: don't loop/retry interrupt status checks"), we don't need to keep
track of the cleared interrupts (actually, we didn't need to do that
before, but we *really* don't need to now).

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:52 +03:00
Brian Norris 463df47190 mwifiex: drop 'add_tail' param from mwifiex_insert_cmd_to_pending_q()
It's always called with 'true' -- we only determine it 'false' locally
within this function. So drop the parameter.

Also, this should be 'bool' (since we use true/false), not 'u32'.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:51 +03:00
Brian Norris 8395fd9b19 mwifiex: don't open-code ARRAY_SIZE()
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:51 +03:00
Brian Norris fe8d730ada mwifiex: utilize netif_tx_{wake,stop}_all_queues()
We're open-coding these. Just use the helpers.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:50 +03:00
Brian Norris f7d7e4b689 mwifiex: make mwifiex_free_cmd_buffer() return void
It doesn't fail.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:50 +03:00
Brian Norris 5e6588b9d4 mwifiex: fix misnomers in mwifiex_free_lock_list()
Despite the name (and meticulous comments), this function frees no
memory and does not touch any locks. All it does is "delete" the list
heads -- which just means they'll be dangling, and we'll need to re-init
them if we use them again.

It seems like this code would work OK as a sort of canary for using the
list after we've torn everything down, so it's fine to keep the code;
let's just get the name and comments to match what's actually happening.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:49 +03:00
Brian Norris 9557d9f2e6 mwifiex: ensure "disable auto DS" struct is initialized
The .idle_time field *should* be unused, but technically, we're allowing
unitialized stack garbage to pass all the way through to the firmware
host command. Let's zero it out instead.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:48 +03:00
Brian Norris c253a62da9 mwifiex: fixup init_channel_scan_gap error case
In reading through _mwifiex_fw_dpc(), I noticed that after we've
registered our wiphy, we still have error paths that don't free it back
up. Let's do that.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:48 +03:00
Brian Norris 6417dba335 mwifiex: don't short-circuit netdev notifiers on interface deletion
When we leave the delete interface function, there are still netdev
hooks that might try to process the device. We're short-circuiting some
of that by changing the interface type and clearing ieee80211_ptr. This
means we skip NETDEV_UNREGISTER_FINAL in cfg80211. Fortunately, that is
currently a no-op.

We don't need most of the cleanup here anyway:

 * the connection state will get (un)set as part of the disconnect
   process (which cfg80211 already initiates for us)
 * the interface type doesn't actually need to be cleared at all (it'll
   trigger a WARN_ON() in cfg80211 if we do)
 * the iee80211_ptr isn't really "ours" to clear anyway

So stop resetting those 3 things.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:47 +03:00
Brian Norris ce32d1d837 mwifiex: unregister wiphy before freeing resources
It's possible for some control interfaces (e.g., scans, set freq) to be
active after we've stopped our main work queue and the netif TX queues.
These don't get completely shut out until we've unregistered the wdevs
and wiphy.

So let's only free command buffers and poison our lists after
wiphy_unregister().

This resolves various use-after-free issues seen when resetting the
device.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:47 +03:00
Brian Norris 643acea629 mwifiex: re-register wiphy across reset
In general, it's helpful to use the same code for device removal as for
device reset, as this tends to have fewer bugs. Let's move the wiphy
unregistration code into the common reset and removal code.

In particular, it's very hard to properly handle the reset sequence when
something fails. Currently, if mwifiex_reinit_sw() fails, we've failed
to unregister the associated wiphy, and so running something as simple
as "iw phy" can trigger an OOPS, as the wiphy still has hooks back into
freed mwifiex data structures. For example, KASAN complained:

[... see reset fail for other reasons ...]
[ 1184.821158] mwifiex_pcie 0000:01:00.0: info: dnld wifi firmware from 174948 bytes
[ 1186.870914] mwifiex_pcie 0000:01:00.0: info: FW download over, size 608396 bytes
[ 1187.685990] mwifiex_pcie 0000:01:00.0: WLAN FW is active
[ 1187.692673] mwifiex_pcie 0000:01:00.0: cmd_wait_q terminated: -512
[ 1187.699075] mwifiex_pcie 0000:01:00.0: info: _mwifiex_fw_dpc: unregister device
[ 1187.713476] mwifiex: Failed to bring up adapter: -5
[ 1187.718644] mwifiex_pcie 0000:01:00.0: reinit failed: -5

[... run `iw phy` ...]
[ 1212.902419] ==================================================================
[ 1212.909806] BUG: KASAN: use-after-free in mwifiex_cfg80211_get_antenna+0x54/0xfc [mwifiex] at addr ffffffc0ad1a8028
[ 1212.920246] Read of size 1 by task iw/3127
[...]
[ 1212.934946] page dumped because: kasan: bad access detected
[...]
[ 1212.950665] Call trace:
[ 1212.953148] [<ffffffc00020a69c>] dump_backtrace+0x0/0x190
[ 1212.958572] [<ffffffc00020a96c>] show_stack+0x20/0x28
[ 1212.963648] [<ffffffc0005ce18c>] dump_stack+0xa4/0xcc
[ 1212.968723] [<ffffffc0003c4430>] kasan_report+0x378/0x500
[ 1212.974140] [<ffffffc0003c3358>] __asan_load1+0x44/0x4c
[ 1212.979462] [<ffffffbffc2e8360>] mwifiex_cfg80211_get_antenna+0x54/0xfc [mwifiex]
[ 1212.987131] [<ffffffbffc084fc4>] nl80211_send_wiphy+0x75c/0x2de0 [cfg80211]
[ 1212.994246] [<ffffffbffc094f60>] nl80211_dump_wiphy+0x32c/0x438 [cfg80211]
[ 1213.001149] [<ffffffc000ab6404>] genl_lock_dumpit+0x48/0x64
[ 1213.006746] [<ffffffc000ab3474>] netlink_dump+0x178/0x398
[ 1213.012171] [<ffffffc000ab3d18>] __netlink_dump_start+0x1bc/0x260
[...]

This all goes away if we just tear down the wiphy on the way down, and
set it back up if/when we bring the device back up.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:46 +03:00
Brian Norris 7dc4a6b5ca mwifiex: pcie: don't allow cmd buffer reuse after reset
In rogue cases (due to other bugs) it's possible we try to process an
old command response *after* resetting the device. This could trigger a
double-free (or the SKB can get reallocated elsewhere...causing other
memory corruptions) in mwifiex_pcie_process_cmd_complete().

For safety (and symmetry) let's always NULL out the command buffer as we
free it up. We're already doing this for the command response buffer.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:46 +03:00
Brian Norris 4b1f5a0d2e mwifiex: reset interrupt status across device reset
When resetting the device, we might have queued up interrupts that
didn't get a chance to finish processing. We really don't need to handle
them at this point; we just want to make sure they don't cause us to try
to process old commands from before the device was reset.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:45 +03:00
Brian Norris b6658b66d8 mwifiex: reunite copy-and-pasted remove/reset code
When PCIe FLR code was added, it explicitly copy-and-pasted much of
mwifiex_remove_card() into mwifiex_shutdown_sw(). This is unnecessary,
as almost all of the code should be reused.

Let's reunite what we can for now.

The only functional changes for now:

 * call netif_device_detach() in the remove() code path -- this wasn't
   done before, but it really should be a no-op, when the device is
   getting totally unregistered soon anyway

 * call the ->down_dev() driver callback only after we've finished all
   SW teardown -- this should have no significant effect, since the only
   user (pcie.c) does very minimal work there, and it doesn't matter
   that we reorder this

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:47:45 +03:00
Amitkumar Karwar e6249e15fe rsi: fix static checker warning
u32 pointer is changed to u16 and filled the value. Problem is
solved by using local temporary variable. Below static checker
warning was reported.

drivers/net/wireless/rsi/rsi_91x_usb.c:400 rsi_usb_master_reg_read()
        warn: passing casted pointer 'value' to 'rsi_usb_reg_read()'
32 vs 16.

Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:27:19 +03:00
Amitkumar Karwar 59f73e2ae1 rsi: check length before USB read/write register
These checks are required. Otherwise we may end up getting
memory corruption if invalid length is passed.

Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:27:19 +03:00
Amitkumar Karwar 523b724a76 rsi: use macro for allocating USB buffer
4 bytes is fixed size for reading or writing USB register. We
will use a macro instead of hardcoding this.

Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:27:18 +03:00
Prameela Rani Garnepudi d7203a83f0 rsi: regulatory enhancements
Below regulatory changes are included this patch
* Country code is saved as it will be used in bgscan.
* Region codes are mapped according to RSI region codes.
* Radar flag settings are moved under the check if 5GHZ band
  is enabled.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:45 +03:00
Prameela Rani Garnepudi 8658325849 rsi: Send rx filter frame to device when interface is down
When interface is down it is better to stop all RX packets to
host. 0xffff will block all packets to host.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:45 +03:00
Prameela Rani Garnepudi 5059afacee rsi: Remove internal header from Tx status skb
Device specific descriptor for each TX packet is prepared on top of
skb data address. This descriptor should be pulled out before
indicating the TX status to mac80211.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:44 +03:00
Prameela Rani Garnepudi 79e590d924 rsi: update tx command frame block/unblock data
TX command frame block/unblock data is modified to
use common descriptor structure.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:44 +03:00
Prameela Rani Garnepudi bcb283d27f rsi: block/unblock data queues as per connection status
Data queues should be unblocked after station add notify frame
is sent and should be blocked after station delete notify is sent.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:43 +03:00
Prameela Rani Garnepudi b3115e8a42 rsi: update autorate request command frame
When Short Gaurd Interval is enabled bit 9 is set in rate. Otherwise
it should not be set. Added missing 'else' case in this patch.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:42 +03:00
Prameela Rani Garnepudi 2a58900bf5 rsi: set_key enhancements
Broadcast bit to be set for broadcast and multicast packets.
For remove_key, tx and rx mic need not be filled.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:42 +03:00
Prameela Rani Garnepudi a84faab0fd rsi: update set_key command frame
TX command frame set_key is modified to use common descriptor
structure.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:41 +03:00
Prameela Rani Garnepudi de1d1813a8 rsi: update vap capabilities command frame
VAP capablities frame configured to device is modified to use
common descriptor structure.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:41 +03:00
Prameela Rani Garnepudi f04854fa3c rsi: update set_channel command frame
TX command frame set_channel is modified to use common
descriptor structure. Also DFS channel indication to firmware
is added in the descriptor for dfs channels configuration.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:40 +03:00
Prameela Rani Garnepudi 5c7ca1bbf2 rsi: Update baseband RF programming frame
Baseband RF programming frame configured to device is modified
to use common descriptor structure.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:39 +03:00
Prameela Rani Garnepudi 3a9828c92b rsi: Update aggregation parameters command frame
AMPDU aggregation parameters frame configured to device is
modified to use common descriptor structure.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:39 +03:00
Prameela Rani Garnepudi 59e006dc77 rsi: Update peer notify command frame
TX command frame peer notify is updated to use common descriptor
structure. MPDU density value added to the frame.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:38 +03:00
Prameela Rani Garnepudi dff80fc5fe rsi: remove unnecessary check for 802.11 management packet
The function rsi_mgmt_pkt_to_core() is for passing the 802.11
management frames to mac80211. So, it is unnecessary to check
again for the frame type 802.11 management in this function.
It can be checked before passing to this function.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:37 +03:00
Prameela Rani Garnepudi 6abdf2c193 rsi: Update in tx command frame radio capabilities
Radio capabilities frame is updated to use common descriptor
structure. Also, few changes to this frame is done like hardware
queues are increase to 12 from 8, default channel number is included.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:37 +03:00
Prameela Rani Garnepudi 9a629fafe7 rsi: immediate wakeup bit and priority for TX command packets
For all TX command packets immediate wakeup bit needs to be
set in descriptor. This will make sure device will wakeup if it
is in any sleep state. Priority of the packet is also set.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:36 +03:00
Prameela Rani Garnepudi 6c8ab76d6a rsi: add common structures needed for command packets
All internal management packets (command packets) use some common
fields and some packet specific fields for packet descriptors.
This patch adds some common structures which are needed for all
command packets.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:36 +03:00
Karun Eagalapati cb16453565 rsi: Rename mutex tx_rxlock to the tx_lock.
We have now added separate lock for Rx. This lock is used to protect
tx path only

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:44 +03:00
Karun Eagalapati 6c409cad3d rsi: use separate mutex lock for receive thread
Deadlock issue is observed during our stress tests. The root
cause for the issue is same lock is used between tx and rx threads.

This patch adds a separate mutex lock for rx thread to resolve
the problem.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:43 +03:00
Karun Eagalapati ebf084ea0e rsi: SDIO Rx packet processing enhancement
Newer firmware sends information about number of blocks through
interrupt only. We don't need to read extra register for this.
This patch adds needed driver changes for this enhancment. The
change here is backward compatible

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:42 +03:00
Karun Eagalapati 72bccf51d4 rsi: Optimise sdio claim and release host
SDIO host is already claimed in our interrupt handler. Some lower
level APIs claims host while performing SDIO read or write operations.
Let's use sdio_irq_task variable to check if we are in interrupt
context and claim/release the host accordingly.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:42 +03:00
Karun Eagalapati 5f6ae7cae2 rsi: rename variable in_sdio_litefi_irq
The variable in_sdio_litefi_irq is renamed to sdio_irq_task,
as it is more relevant here.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:41 +03:00
Pavani Muthyala ceb2e4eab9 rsi: separate function for data packet descriptor
Data packet descriptor preparation code is moved a separate
function.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:41 +03:00
Pavani Muthyala 0eb42586cf rsi: data packet descriptor enhancements
This patch covers some enhancements in data packet descriptor
preparation especially for EAPOL, multicast/broadcast packets.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:40 +03:00
Pavani Muthyala af19309776 rsi: data packet descriptor code cleanup
Currently this descriptor is prepared with the help of __le16
pointer. This patch makes use of a structure to prepare the
descriptor in a cleaner way.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:39 +03:00
Prameela Rani Garnepudi 6507de6df9 rsi: separate function for management packet descriptor
Management descriptor preparation is move to a separate function
as it will be called from a different context in upcoming patches.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:38 +03:00
Pavani Muthyala de2dea16ec rsi: management frame descriptor preparation cleanup
Currently this descriptor is prepared with the help of __le16
pointer. This patch makes use of a structure to prepare the
descriptor in a cleaner way.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:38 +03:00
Karun Eagalapati 015240018b rsi: set immediate wakeup bit
immediate wakeup bit is set while sending internal management
frame to the firmware.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:37 +03:00
Karun Eagalapati d1f69e418f rsi: choose correct endpoint based on queue.
Till now only management packets were handled. Let's enhance
the logic for choosing endpoint to accommodate other packets.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:37 +03:00
Karun Eagalapati 5d16a1c1ae rsi: rename USB endpoint macros
These endpoints are for WLAN and BT protocols.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:36 +03:00
Amitkumar Karwar ac6107caa0 rsi: correct the logic of deriving queue number
Maximum valid queue number is 0x5. So anding with 0x7 should be
ok here.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:36 +03:00
Karun Eagalapati ed833be6fa rsi: USB tx headroom cleanup
USB headroom is added while submitting the data to URB as per
firmware's requirement. This logic is moved to rsi_usb_card_write() so
that caller need not worry about it.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:35 +03:00
Karun Eagalapati ea0676c470 rsi: card reset for USB interface
We need to reset the chip in teardown path so that it can work
next time when driver is loaded. This patch adds support for this
reset configuration for USB.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:35 +03:00
Karun Eagalapati f746606a51 rsi: correct SDIO disconnect path handling
Sometimes it's observed that we get interrupt/Rx frame when device is
already detached from mac80211. In this case couple of error messages
are displayed in dmesg log. This patch corrects the order so that
disconnection will happen cleanly

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:34 +03:00
Karun Eagalapati 49ddac0d4b rsi: chip reset for SDIO interface
We need to reset the chip in teardown path so that it can work
next time when driver is loaded. This patch adds support for
this reset configuration for SDIO.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:34 +03:00
Karun Eagalapati f95bbd979d rsi: fix sdio card reset problem
card reset is not working with recent kernels. Using
host->card->ocr instead of host->ocr_avail solved the problem.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:33 +03:00
Prameela Rani Garnepudi 09cfb41f35 rsi: changes in eeprom read frame
EEPROM read frame is sent during device initialization to read mac address.
The format of the frame is modified in firmware to include eeprom length
and offset. This frame does not return firmware version now. Also same
frame is sent again to read rf type and band information.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:33 +03:00
Amitkumar Karwar e0d0ae8a43 rsi: use BUILD_BUG_ON check for fsm_state
Whenever new fsm_state enum element is added, fsm_state array
also needs to be updated. If this change is missed, we may end
up doing invalid access in array. BUILD_BUG_ON check will help
to avoid this problem.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:22:32 +03:00
Kalle Valo 1283c6174d Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.14. Major changes:

ath10k

* preparation for wcn3990 support
2017-07-28 15:11:34 +03:00
Arend Van Spriel 5f5d03143d brcmfmac: fix memleak due to calling brcmf_sdiod_sgtable_alloc() twice
Due to a bugfix in wireless tree and the commit mentioned below a merge
was needed which went haywire. So the submitted change resulted in the
function brcmf_sdiod_sgtable_alloc() being called twice during the probe
thus leaking the memory of the first call.

Cc: stable@vger.kernel.org # 4.6.x
Fixes: 4d79289598 ("brcmfmac: switch to new platform data")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-27 14:03:14 +03:00
Daniel Stone 58f36b4526 brcmfmac: Don't grow SKB by negative size
The commit to rework the headroom check in start_xmit() now calls
pxskb_expand_head() unconditionally if the header is CoW. Unfortunately,
it does so with the delta between the extant headroom and the header
length, which may be negative if there is already sufficient headroom.

pskb_expand_head() does allow for size being 0, in which case it just
copies, so clamp the header delta to zero.

Opening Chrome (and all my tabs) on a PCIE device was enough to reliably
hit this.

Fixes: 270a6c1f65 ("brcmfmac: rework headroom check in .start_xmit()")
Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Arend Van Spriel <arend.vanspriel@broadcom.com>
Cc: James Hughes <james.hughes@raspberrypi.org>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-27 14:02:16 +03:00
Cong Wang 6e9aae179f wl1251: add a missing spin_lock_init()
This fixes the following kernel warning:

  [ 5668.771453] BUG: spinlock bad magic on CPU#0, kworker/u2:3/9745
  [ 5668.771850]  lock: 0xce63ef20, .magic: 00000000, .owner: <none>/-1,
  .owner_cpu: 0
  [ 5668.772277] CPU: 0 PID: 9745 Comm: kworker/u2:3 Tainted: G        W
  4.12.0-03002-gec979a4-dirty #40
  [ 5668.772796] Hardware name: Nokia RX-51 board
  [ 5668.773071] Workqueue: phy1 wl1251_irq_work
  [ 5668.773345] [<c010c9e4>] (unwind_backtrace) from [<c010a274>]
  (show_stack+0x10/0x14)
  [ 5668.773803] [<c010a274>] (show_stack) from [<c01545a4>]
  (do_raw_spin_lock+0x6c/0xa0)
  [ 5668.774230] [<c01545a4>] (do_raw_spin_lock) from [<c06ca578>]
  (_raw_spin_lock_irqsave+0x10/0x18)
  [ 5668.774658] [<c06ca578>] (_raw_spin_lock_irqsave) from [<c048c010>]
  (wl1251_op_tx+0x38/0x5c)
  [ 5668.775115] [<c048c010>] (wl1251_op_tx) from [<c06a12e8>]
  (ieee80211_tx_frags+0x188/0x1c0)
  [ 5668.775543] [<c06a12e8>] (ieee80211_tx_frags) from [<c06a138c>]
  (__ieee80211_tx+0x6c/0x130)
  [ 5668.775970] [<c06a138c>] (__ieee80211_tx) from [<c06a3dbc>]
  (ieee80211_tx+0xdc/0x104)
  [ 5668.776367] [<c06a3dbc>] (ieee80211_tx) from [<c06a4af0>]
  (__ieee80211_subif_start_xmit+0x454/0x8c8)
  [ 5668.776824] [<c06a4af0>] (__ieee80211_subif_start_xmit) from
  [<c06a4f94>] (ieee80211_subif_start_xmit+0x30/0x2fc)
  [ 5668.777343] [<c06a4f94>] (ieee80211_subif_start_xmit) from
  [<c0578848>] (dev_hard_start_xmit+0x80/0x118)
  ...

by adding the missing spin_lock_init().

Reported-by: Pavel Machek <pavel@ucw.cz>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-27 13:59:31 +03:00
Colin Ian King d0116f6f7b rtlwifi: kfree entry until after entry->bssid has been accessed
The current code kfree's entry and then dereferences it by accessing
entry->bssid.  Avoid the dereference-after-free by moving the kfree
after the access to entry->bssid.

Detected by CoverityScan, CID#1448600 ("Read from pointer after free")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-27 13:58:18 +03:00
Brian Norris 4b5dde2d62 mwifiex: correct channel stat buffer overflows
mwifiex records information about various channels as it receives scan
information. It does this by appending to a buffer that was sized
to the max number of supported channels on any band, but there are
numerous problems:

(a) scans can return info from more than one band (e.g., both 2.4 and 5
    GHz), so the determined "max" is not large enough
(b) some firmware appears to return multiple results for a given
    channel, so the max *really* isn't large enough
(c) there is no bounds checking when stashing these stats, so problems
    (a) and (b) can easily lead to buffer overflows

Let's patch this by setting a slightly-more-correct max (that accounts
for a combination of both 2.4G and 5G bands) and adding a bounds check
when writing to our statistics buffer.

Due to problem (b), we still might not properly report all known survey
information (e.g., with "iw <dev> survey dump"), since duplicate results
(or otherwise "larger than expected" results) will cause some
truncation. But that's a problem for a future bugfix.

(And because of this known deficiency, only log the excess at the WARN
level, since that isn't visible by default in this driver and would
otherwise be a bit too noisy.)

Fixes: bf35443314 ("mwifiex: channel statistics support for mwifiex")
Cc: <stable@vger.kernel.org>
Cc: Avinash Patil <patila@marvell.com>
Cc: Xinming Hu <huxm@marvell.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-27 12:35:55 +03:00
Tonghao Zhang 81fc9b5ccf drivers/net: Fix ptr_ret.cocci warnings.
we can use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
1. drivers/net/appletalk/ipddp.c
2. drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25 12:27:06 -07:00
Johannes Berg bf8b286f86 iwlwifi: mvm: defer setting IWL_MVM_STATUS_IN_HW_RESTART
A hardware/firmware error may happen at any point in time. In
particular, it might happen while mac80211 is in the middle of
a flow. We observed the following situation:
 * mac80211 is in authentication flow, in ieee80211_prep_connection()
 * iwlwifi firmware crashes, but no error can be reported at this
   precise point (mostly because the driver method is void, but even
   if it wasn't we'd just shift to a race condition)
 * mac80211 continues the flow, trying to add the AP station
 * iwlwifi has already set its internal restart flag, and so thinks
   that adding the station is part of the restart and already set up,
   so it uses the information that's supposed to already be in the
   struct

This can happen with any flow in mac80211 and with any information
we try to preserve across hardware restarts.

To fix this, only set a new HW_RESTART_REQUESTED flag and translate
that to IN_HW_RESTART once mac80211 actually starts the restart by
calling our start() method. As a consequence, any mac80211 flow in
progress at the time of the restart will properly finish (certainly
with errors), before the restart is attempted.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=195299.

Reported-by: djagoo <dev@djagoo.io>
Reported-by: Łukasz Siudut <lsiudut@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:39 +03:00
Luca Coelho 7b758a1118 iwlwifi: mvm: handle IBSS probe_queue in a few missing places
When IBSS was implemented for DQA, we missid a few places where it
should be handled in the same way as AP.

Fixes: ee48b72211 ("iwlwifi: mvm: support ibss in dqa mode")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:39 +03:00
Emmanuel Grumbach 5462bcd8c9 iwlwifi: fix tracing when tx only is enabled
iwl_trace_data is somewhat confusing. It returns a bool
that tells if the payload of the skb should be added to
the tx_data event. If it returns false, then the payload
of the skb is added to the tx event.

The purpose is to be able to start tracing with
-e iwlwifi
and record non-data packets only which saves bandwidth.

Since EAPOLs are important, seldom and not real data
packet (despite being WiFi data packets), they are
included in tx event and thus iwl_trace_data returns false
on those. This last part was buggy, and because of that,
all the data packets were included in the tx event.

Fix that.

Fixes: 0c4cb7314d ("iwlwifi: tracing: decouple from mac80211")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:38 +03:00
Dan Carpenter 2388bd7b13 iwlwifi: missing error code in iwl_trans_pcie_alloc()
We don't set the error code here so we end up returning ERR_PTR(0) which
is NULL.  The caller doesn't expect that so it results in a NULL
dereference.

Fixes: 2e5d4a8f61 ("iwlwifi: pcie: Add new configuration to enable MSIX")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:38 +03:00
Emmanuel Grumbach 61dd8a8a6a iwlwifi: mvm: fix a NULL pointer dereference of error in recovery
Sometimes, we can have an firmware crash while trying to
recover from a previous firmware problem.
When that happens, lots of things can go wrong. For example
the stations don't get added properly to mvm->fw_id_to_mac_id.

Mac80211 tries to stop A-MPDU upon reconfig but in case of
a firmware crash we will bail out fairly early and in the
end, we won't delete the A-MPDU Rx timeout.
When that timer expired after a double firmware crash,
we end up dereferencing mvm->fw_id_to_mac_id[sta_id]
which is NULL.

Fixes: 10b2b2019d ("iwlwifi: mvm: add infrastructure for tracking BA session in driver")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:37 +03:00
Mordechai Goodstein f6eac740a9 iwlwifi: pcie: fix unused txq NULL pointer dereference
Before TVQM, all TX queues were allocated straight at init.
With TVQM, queues are allocated on demand and hence we need
to check if a queue exists before dereferencing it.

Fixes: 66128fa08806 ("iwlwifi: move to TVQM mode")
Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:37 +03:00
Emmanuel Grumbach 0b0f934e92 iwlwifi: dvm: prevent an out of bounds access
iwlagn_check_ratid_empty takes the tid as a parameter, but
it doesn't check that it is not IWL_TID_NON_QOS.
Since IWL_TID_NON_QOS = 8 and iwl_priv::tid_data is an array
with 8 entries, accessing iwl_priv::tid_data[IWL_TID_NON_QOS]
is a bad idea.
This happened in iwlagn_rx_reply_tx. Since
iwlagn_check_ratid_empty is relevant only to check whether
we can open A-MPDU, this flow is irrelevant if tid is
IWL_TID_NON_QOS. Call iwlagn_check_ratid_empty only inside
the
	if (tid != IWL_TID_NON_QOS)

a few lines earlier in the function.

Cc: <stable@vger.kernel.org>
Reported-by: Seraphime Kirkovski <kirkseraph@gmail.com>
Tested-by: Seraphime Kirkovski <kirkseraph@gmail.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-07-21 12:26:36 +03:00
Larry Finger 271612d72d Revert "rtlwifi: btcoex: rtl8723be: fix ant_sel not work"
This reverts commit f95d95a7cd.

With commit f95d95a7cd ("rtlwifi: btcoex: rtl8723be: fix ant_sel not
work"), the kernel has a NULL pointer dereference oops. This content and
the proper fix will be included in a later patch.

Fixes: f95d95a7cd ("rtlwifi: btcoex: rtl8723be: fix ant_sel not work")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-21 10:41:43 +03:00
Arend Van Spriel 0a16628212 brcmfmac: fix regression in brcmf_sdio_txpkt_hdalign()
Recent change in brcmf_sdio_txpkt_hdalign() changed the
behavior and now always returns 0. This resulted in a
regression which basically renders the device useless.

Fixes: 270a6c1f65 ("brcmfmac: rework headroom check in .start_xmit()")
Reported-by: S. Gilles <sgilles@math.umd.edu>
Tested-by: S. Gilles <sgilles@math.umd.edu>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-21 10:40:48 +03:00
David S. Miller 7a68ada6ec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
Gustavo A. R. Silva f55dda4bde rtlwifi: remove useless code
Remove useless local variables last_read_point and last_txw_point and
the code related.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-19 16:33:57 -07:00
Gustavo A. R. Silva 06548fbb60 wireless: airo: remove unnecessary static in writerids()
Remove unnecessary static on local function pointer _writer_.
Such pointer is initialized before being used, on every
execution path throughout the function. The static has no
benefit and, removing it reduces the object file size.

This issue was detected using Coccinelle and the following semantic patch:

@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;

In the following log you can see a significant difference in the object
file size. This log is the output of the size command, before and after
the code change:

before:
   text    data     bss     dec     hex filename
 113797   19152    1216  134165   20c15 drivers/net/wireless/cisco/airo.o

after:
   text	   data	    bss	    dec	    hex	filename
 113881	  19096	   1152	 134129	  20bf1	drivers/net/wireless/cisco/airo.o

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-19 16:33:57 -07:00
Arvind Yadav 6cbbd7ec06 wireless: iwlegacy: Constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-18 12:04:56 -07:00
Arvind Yadav 64571ca71b wireless: iwlegacy: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-18 12:04:56 -07:00
Arvind Yadav e00b6c6d98 wireless: ipw2100: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-18 12:04:56 -07:00
Arvind Yadav d7979553ef wireless: ipw2200: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-18 12:04:56 -07:00
Colin Ian King bf98bd0be1 rt2x00: make const array glrt_table static
Don't populate array glrt_table on the stack but make it static.
Makes the object code a smaller by over 670 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
 131772	   4733	      0	 136505	  21539	rt2800lib.o

After:
   text	   data	    bss	    dec	    hex	filename
 131043	   4789	      0	 135832	  21298	rt2800lib.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-13 09:23:56 -07:00
Arend van Spriel 8f44c9a413 brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
The lower level nl80211 code in cfg80211 ensures that "len" is between
25 and NL80211_ATTR_FRAME (2304).  We subtract DOT11_MGMT_HDR_LEN (24) from
"len" so thats's max of 2280.  However, the action_frame->data[] buffer is
only BRCMF_FIL_ACTION_FRAME_SIZE (1800) bytes long so this memcpy() can
overflow.

	memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
	       le16_to_cpu(action_frame->len));

Cc: stable@vger.kernel.org # 3.9.x
Fixes: 18e2f61db3 ("brcmfmac: P2P action frame tx.")
Reported-by: "freenerguo(郭大兴)" <freenerguo@tencent.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-12 08:29:56 -07:00
Linus Torvalds f263fbb8d6 pci-v4.13-changes
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZYAFUAAoJEFmIoMA60/r8cFQP/A4fpdjhd42WRNQXGTpZieop
 i40lBQtGdBn/UY97U6BoutcS1ygDi9OiSzg+IR6I90iMgidqyUHFhe4hGWgVHD2g
 Tg0KLzd+lKKfQ6Gqt1P6t4dLGLvyEj5NUbCeFE4XYODAUkkiBaOndax6DK1GvU54
 Vjuj63rHtMKFR/tG/4iFTigObqyI8QE6O9JVxwuvIyEX6RXKbJe+wkulv5taSnWt
 Ne94950i10MrELtNreVdi8UbCbXiqjg0r5sKI/WTJ7Bc7WsC7X5PhWlhcNrbHyBT
 Ivhoypkui3Ky8gvwWqL0KBG+cRp8prBXAdabrD9wRbz0TKnfGI6pQzseCGRnkE6T
 mhlSJpsSNIHaejoCjk93yPn5oRiTNtPMdVhMpEQL9V/crVRGRRmbd7v2TYvpMHVR
 JaPZ8bv+C2aBTY8uL3/v/rgrjsMKOYFeaxeNklpErxrknsbgb6BgubmeZXDvTBVv
 YUIbAkvveonUKisv+kbD8L7tp1+jdbRUT0AikS0NVgAJQhfArOmBcDpTL9YC51vE
 feFhkVx4A32vvOm7Zcg9A7IMXNjeSfccKGw3dJOAvzgDODuJiaCG6S0o7B5Yngze
 axMi87ixGT4QM98z/I4MC8E9rDrJdIitlpvb6ZBgiLzoO3kmvsIZZKt8UxWqf5r8
 w3U2HoyKH13Qbkn1xkum
 =mkyb
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

  - add sysfs max_link_speed/width, current_link_speed/width (Wong Vee
    Khee)

  - make host bridge IRQ mapping much more generic (Matthew Minter,
    Lorenzo Pieralisi)

  - convert most drivers to pci_scan_root_bus_bridge() (Lorenzo
    Pieralisi)

  - mutex sriov_configure() (Jakub Kicinski)

  - mutex pci_error_handlers callbacks (Christoph Hellwig)

  - split ->reset_notify() into ->reset_prepare()/reset_done()
    (Christoph Hellwig)

  - support multiple PCIe portdrv interrupts for MSI as well as MSI-X
    (Gabriele Paoloni)

  - allocate MSI/MSI-X vector for Downstream Port Containment (Gabriele
    Paoloni)

  - fix MSI IRQ affinity pre/post/min_vecs issue (Michael Hernandez)

  - test INTx masking during enumeration, not at run-time (Piotr Gregor)

  - avoid using device_may_wakeup() for runtime PM (Rafael J. Wysocki)

  - restore the status of PCI devices across hibernation (Chen Yu)

  - keep parent resources that start at 0x0 (Ard Biesheuvel)

  - enable ECRC only if device supports it (Bjorn Helgaas)

  - restore PRI and PASID state after Function-Level Reset (CQ Tang)

  - skip DPC event if device is not present (Keith Busch)

  - check domain when matching SMBIOS info (Sujith Pandel)

  - mark Intel XXV710 NIC INTx masking as broken (Alex Williamson)

  - avoid AMD SB7xx EHCI USB wakeup defect (Kai-Heng Feng)

  - work around long-standing Macbook Pro poweroff issue (Bjorn Helgaas)

  - add Switchtec "running" status flag (Logan Gunthorpe)

  - fix dra7xx incorrect RW1C IRQ register usage (Arvind Yadav)

  - modify xilinx-nwl IRQ chip for legacy interrupts (Bharat Kumar
    Gogada)

  - move VMD SRCU cleanup after bus, child device removal (Jon Derrick)

  - add Faraday clock handling (Linus Walleij)

  - configure Rockchip MPS and reorganize (Shawn Lin)

  - limit Qualcomm TLP size to 2K (hardware issue) (Srinivas Kandagatla)

  - support Tegra MSI 64-bit addressing (Thierry Reding)

  - use Rockchip normal (not privileged) register bank (Shawn Lin)

  - add HiSilicon Kirin SoC PCIe controller driver (Xiaowei Song)

  - add Sigma Designs Tango SMP8759 PCIe controller driver (Marc
    Gonzalez)

  - add MediaTek PCIe host controller support (Ryder Lee)

  - add Qualcomm IPQ4019 support (John Crispin)

  - add HyperV vPCI protocol v1.2 support (Jork Loeser)

  - add i.MX6 regulator support (Quentin Schulz)

* tag 'pci-v4.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits)
  PCI: tango: Add Sigma Designs Tango SMP8759 PCIe host bridge support
  PCI: Add DT binding for Sigma Designs Tango PCIe controller
  PCI: rockchip: Use normal register bank for config accessors
  dt-bindings: PCI: Add documentation for MediaTek PCIe
  PCI: Remove __pci_dev_reset() and pci_dev_reset()
  PCI: Split ->reset_notify() method into ->reset_prepare() and ->reset_done()
  PCI: xilinx: Make of_device_ids const
  PCI: xilinx-nwl: Modify IRQ chip for legacy interrupts
  PCI: vmd: Move SRCU cleanup after bus, child device removal
  PCI: vmd: Correct comment: VMD domains start at 0x10000, not 0x1000
  PCI: versatile: Add local struct device pointers
  PCI: tegra: Do not allocate MSI target memory
  PCI: tegra: Support MSI 64-bit addressing
  PCI: rockchip: Use local struct device pointer consistently
  PCI: rockchip: Check for clk_prepare_enable() errors during resume
  MAINTAINERS: Remove Wenrui Li as Rockchip PCIe driver maintainer
  PCI: rockchip: Configure RC's MPS setting
  PCI: rockchip: Reconfigure configuration space header type
  PCI: rockchip: Split out rockchip_pcie_cfg_configuration_accesses()
  PCI: rockchip: Move configuration accesses into rockchip_pcie_cfg_atu()
  ...
2017-07-08 15:51:57 -07:00
Tamizh chelvam 75e0dde2ab ath10k: increase buffer len to print all wmi services
All wmi_services are not printing when we give below command.

cat /sys/kernel/debug/ieee80211/phyX/ath10k/wmi_services

This patch increases the buffer_len to 8192 to print all the wmi_services.

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-07-06 15:18:44 +03:00
Govind Singh f9e1830454 ath10k: add copy engine register MAP for wcn3990 target
Copy engine is a host to target communication interface
between wlan firmware and wlan wcn3990 platform driver. Add copy
engine register map for wcn3990 wlan module. This add support
for the copy engine source/destination ring configuration for
wcn3990 chipset.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-07-06 15:17:10 +03:00
Govind Singh 641fe28ad3 ath10k: make CE layer bus agnostic
Remove bus specific dependencies from CE layer
to have common CE layer across multiple targets.
This is required for adding support for WCN3990
chipset support as WCN3990 chipset uses SNOC
bus interface with Copy Engine endpoint.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-07-06 15:17:05 +03:00
Kalle Valo 5784f87df1 ath10k: fix indenting in ath10k_wmi_update_noa()
Commit 59ae1d127a ("networking: introduce and use skb_put_data()") introduced
a new checkpatch warning:

drivers/net/wireless/ath/ath10k/wmi.c:3308: code indent should use tabs where possible

Fix that.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-07-06 15:14:57 +03:00
Linus Torvalds 5518b69b76 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Reasonably busy this cycle, but perhaps not as busy as in the 4.12
  merge window:

   1) Several optimizations for UDP processing under high load from
      Paolo Abeni.

   2) Support pacing internally in TCP when using the sch_fq packet
      scheduler for this is not practical. From Eric Dumazet.

   3) Support mutliple filter chains per qdisc, from Jiri Pirko.

   4) Move to 1ms TCP timestamp clock, from Eric Dumazet.

   5) Add batch dequeueing to vhost_net, from Jason Wang.

   6) Flesh out more completely SCTP checksum offload support, from
      Davide Caratti.

   7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
      Neira Ayuso, and Matthias Schiffer.

   8) Add devlink support to nfp driver, from Simon Horman.

   9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
      Prabhu.

  10) Add stack depth tracking to BPF verifier and use this information
      in the various eBPF JITs. From Alexei Starovoitov.

  11) Support XDP on qed device VFs, from Yuval Mintz.

  12) Introduce BPF PROG ID for better introspection of installed BPF
      programs. From Martin KaFai Lau.

  13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.

  14) For loads, allow narrower accesses in bpf verifier checking, from
      Yonghong Song.

  15) Support MIPS in the BPF selftests and samples infrastructure, the
      MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
      Daney.

  16) Support kernel based TLS, from Dave Watson and others.

  17) Remove completely DST garbage collection, from Wei Wang.

  18) Allow installing TCP MD5 rules using prefixes, from Ivan
      Delalande.

  19) Add XDP support to Intel i40e driver, from Björn Töpel

  20) Add support for TC flower offload in nfp driver, from Simon
      Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
      Kicinski, and Bert van Leeuwen.

  21) IPSEC offloading support in mlx5, from Ilan Tayari.

  22) Add HW PTP support to macb driver, from Rafal Ozieblo.

  23) Networking refcount_t conversions, From Elena Reshetova.

  24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
      for tuning the TCP sockopt settings of a group of applications,
      currently via CGROUPs"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
  net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
  dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
  cxgb4: Support for get_ts_info ethtool method
  cxgb4: Add PTP Hardware Clock (PHC) support
  cxgb4: time stamping interface for PTP
  nfp: default to chained metadata prepend format
  nfp: remove legacy MAC address lookup
  nfp: improve order of interfaces in breakout mode
  net: macb: remove extraneous return when MACB_EXT_DESC is defined
  bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
  bpf: fix return in load_bpf_file
  mpls: fix rtm policy in mpls_getroute
  net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
  net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
  ...
2017-07-05 12:31:59 -07:00
Linus Torvalds 974668417b driver core patches for 4.13-rc1
Here is the big driver core update for 4.13-rc1.
 
 The large majority of this is a lot of cleanup of old fields in the
 driver core structures and their remaining usages in random drivers.
 All of those fixes have been reviewed by the various subsystem
 maintainers.  There's also some small firmware updates in here, a new
 kobject uevent api interface that makes userspace interaction easier,
 and a few other minor things.
 
 All of these have been in linux-next for a long while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWVpX4A8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymobgCfd0d13IfpZoq1N41wc6z2Z0xD7cwAnRMeH1/p
 kEeISGpHPYP9f8PBh9FO
 =Hfqt
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big driver core update for 4.13-rc1.

  The large majority of this is a lot of cleanup of old fields in the
  driver core structures and their remaining usages in random drivers.
  All of those fixes have been reviewed by the various subsystem
  maintainers. There's also some small firmware updates in here, a new
  kobject uevent api interface that makes userspace interaction easier,
  and a few other minor things.

  All of these have been in linux-next for a long while with no reported
  issues"

* tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (56 commits)
  arm: mach-rpc: ecard: fix build error
  zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()
  driver-core: remove struct bus_type.dev_attrs
  powerpc: vio_cmo: use dev_groups and not dev_attrs for bus_type
  powerpc: vio: use dev_groups and not dev_attrs for bus_type
  USB: usbip: convert to use DRIVER_ATTR_RW
  s390: drivers: convert to use DRIVER_ATTR_RO/WO
  platform: thinkpad_acpi: convert to use DRIVER_ATTR_RO/RW
  pcmcia: ds: convert to use DRIVER_ATTR_RO
  wireless: ipw2x00: convert to use DRIVER_ATTR_RW
  net: ehea: convert to use DRIVER_ATTR_RO
  net: caif: convert to use DRIVER_ATTR_RO
  TTY: hvc: convert to use DRIVER_ATTR_RW
  PCI: pci-driver: convert to use DRIVER_ATTR_WO
  IB: nes: convert to use DRIVER_ATTR_RW
  HID: hid-core: convert to use DRIVER_ATTR_RO and drv_groups
  arm: ecard: fix dev_groups patch typo
  tty: serdev: use dev_groups and not dev_attrs for bus_type
  sparc: vio: use dev_groups and not dev_attrs for bus_type
  hid: intel-ish-hid: use dev_groups and not dev_attrs for bus_type
  ...
2017-07-03 20:27:48 -07:00
Christoph Hellwig 775755ed3c PCI: Split ->reset_notify() method into ->reset_prepare() and ->reset_done()
The pci_error_handlers->reset_notify() method had a flag to indicate
whether to prepare for or clean up after a reset.  The prepare and done
cases have no shared functionality whatsoever, so split them into separate
methods.

[bhelgaas: changelog, update locking comments]
Link: http://lkml.kernel.org/r/20170601111039.8913-3-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-07-03 07:58:30 -05:00
Kalle Valo 17d9aa66b0 Final set of patches for 4.13
* Some important fixes for 9000 HW;
 * FW API changes for the upcoming -30 ucode release;
 * A few new PCI IDs for 9000 series;
 * Reorganization of common files;
 * Some more fixes and improvements here and there
 * Initialization and other important fixes for 9000 series;
 * Support for version 30 of the FW API for 8000 and 9000 series;
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEF3LNfgb2BPWm68smoUecoho8xfoFAllWIc0ACgkQoUecoho8
 xfr0zBAAt6PE8+JWZOOdd6BcS6/rd7cqr/2MTmLMZ03ZyGBiCT0ypN9Nmwmo1ud3
 YVPYAr4YtzTP9qNuELb8/x0m/ACoWcoNJo55lgngesYQXBWnNckBCsJnQ/gFDaYh
 IKOCTf6WeIEr0K8NRdrQRc1RhHzIhfdgcv45bzrDIrbKX5LByX1b6HwuMet3AMby
 PBtBiczJdmerPfsQ9v0WMYYcwNTfCCfX+kS1PmyveFLR0LBA4tuoFqWTLlA7J7N1
 zokIdvpa6o7C9HepCDy7ShX602iSs0Xf3ZL6Xsw8Z60ZkJsmMc3poWXW39aoiCGF
 IAvtJFWQdGfZt9qHmQ54CmQ9ng2uUt/4XIa9x+w0cWyCaGSQ9Onn0oNTOs0YgMCY
 3VqG+H6NdRa9Tw3QB97l7VhjNeU3HQzP1wU7usOpipkyk4u/lO3obeojzCfzE+ID
 +jTjpEMBsABB4oLfeBKd+7313QhU5FEaZ7y29FF+VAFOXQe0fZyiDF611RYvdlrk
 laDzhXg877Wr3D6MRNXWPhoXpFTqvROKIEWMs1fokegbrPPhKkkDouafJ0SX/1XK
 +vsGOvg0K5EpXCjPxLN9/9Zt+ngMFtgDUWmZ70qtrjEMwLlSGL9R8KbfDOLKduag
 v1oQalNwU8NVR93V4CPMe1/o8P9SA1gUwCxaJbVsRoZUrGnkYvU=
 =f5vG
 -----END PGP SIGNATURE-----

Merge tag 'iwlwifi-next-for-kalle-2017-06-30' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Final set of patches for 4.13

* Some important fixes for 9000 HW;
* FW API changes for the upcoming -30 ucode release;
* A few new PCI IDs for 9000 series;
* Reorganization of common files;
* Some more fixes and improvements here and there
* Initialization and other important fixes for 9000 series;
* Support for version 30 of the FW API for 8000 and 9000 series;
2017-06-30 13:48:19 +03:00
Ganapathi Bhat 8a063a2781 mwifiex: do not update MCS set from hostapd
We should not copy the MCS set from hostapd RX-STBC. We
have to just use the MCS set supported by the hardware.
This fixes an issue, where mwifiex is advertising wrong
MCS sets in beacons.

Fixes: 474a41e94d ("mwifiex: update MCS set as per RX-STBC bit from hostapd")
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-30 09:54:59 +03:00
Arend van Spriel 123fef3fd4 brcmfmac: switch to using cfg80211_connect_done()
The driver used cfg80211_connect_result() which is basically a wrapper
around cfg80211_connect_done() passing a subset of the information that
can be passed. For upcoming functionality this is not sufficient so
switching to use cfg80211_connect_done().

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-30 09:38:22 +03:00
Arend van Spriel 2526ff21aa brcmfmac: support 4-way handshake offloading for 802.1X
Adding callbacks for PMK provisioning. If firmware supports offloading
it is indicated to user-space that 802.1X offload is supported.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-30 09:38:22 +03:00
Arend van Spriel b8a64f0e96 brcmfmac: support 4-way handshake offloading for WPA/WPA2-PSK
The firmware may have supplicant code built-in. This is detected
by the driver and indicated in the wiphy features flags. User-space
can use this flag to determine whether or not to provide the
pre-shared key material in the nl80211 CONNECT command.

Reviewed-by: Gautam (Gautam Kumar) Shukla <gautams@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-30 09:38:22 +03:00
Luca Coelho ba320dd61e iwlwifi: bump MAX API for 8000/9000/A000 to 33
Bump the maximum API supported by these device families to 33.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 21:09:58 +03:00
Emmanuel Grumbach 099a628bf6 iwlwifi: pcie: wait longer after device reset
The newest devices need a longer time to reset because of
their more complex hardware. Wait 5ms after device reset.
Consolidate all the places that reset the device in the
PCIe transport to avoid future bugs.

While at it, unify the flow to use set_bit instead of full
write as requested by the hardware designers.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 21:02:51 +03:00
Emmanuel Grumbach 52b6e168ae iwlwifi: pcie: propagate iwl_pcie_apm_init's status
iwl_pcie_apm_init can fail so make sure that the caller
takes the status into account.
Also, ensure that the error that iwl_pcie_apm_init can emit
will appear in the kernel log by default.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 21:02:50 +03:00
Johannes Berg 51da3d8b94 iwlwifi: mvm: quietly accept non-sta disassoc frames
When a station that's not associated sends a data frame (e.g. an NDP)
hostapd will respond with a disassoc frame, telling it that it's not
associated. The station might also not be authenticated, in which case
there will not be a station entry for it, and as a result we need to
accept such frames without a station.

Fixes: 3ee0f0e23e ("iwlwifi: mvm: fix DQA AP mode station assumption")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 21:02:50 +03:00
Liad Kaufman 678d9b6ddd iwlwifi: mvm: update rx statistics cmd api
The API has changed - update the code.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 21:02:47 +03:00
Johannes Berg 6e46496302 iwlwifi: mvm: remove DQA non-STA client mode special case
When we get a non-STA frame to transmit in client mode, we try to use
the IWL_MVM_DQA_BSS_CLIENT_QUEUE queue (queue #4). However, at this
point, the queue might not be allocated at all, causing warnings. The
scenario on which this happened was a race condition between mac80211
and our queue allocation work:
 * mac80211 sends auth
 * we stop mac80211 queues to allocate a hw queue
 * authentication is aborted
 * we allocate HW queue and start mac80211 queues
 * mac80211 removes station
 * mac80211 hands us the auth frame from the pending queue

At this point, since mac80211 has already removed the station, we try
to transmit the frame through this special non-station case on queue
4 anyway.

In order to really use it properly, we'd have to again go through the
hw queue allocation work, and attach it to a station, etc. In this
case that isn't possible (there's no station anymore), but if this
special case were needed, then we'd have to do it this way.

However, the special case is documented to exist for TDLS, but can't
trigger there because the TDLS setup frames etc. are normal to-DS
frames going to the peer through the AP. Testing also confirms that
this code path isn't triggered in TDLS.

Therefore, remove the code path to avoid using an unused queue. The
erroneous frame described above will still be transmitted on the AUX
queue, but arguably that's a mac80211 problem, which will eventually
be fixed by moving everything there to TXQs.

Fixes: e3118ad74d ("iwlwifi: mvm: support tdls in dqa mode")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:42:18 +03:00
Emmanuel Grumbach 6344436e9d iwlwifi: mvm: don't mess the SNAP header in TSO for non-QoS packets
When we get large sends on non-QoS association, we had a
bug that mangled the SNAP header. Fix that.

Fixes: a6d5e32f24 ("iwlwifi: mvm: send large SKBs to the transport")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:40:43 +03:00
Johannes Berg 52848a79b9 iwlwifi: pcie: reconfigure MSI-X HW on resume
When going into suspend, the HW configuration for MSI-X will
likely be lost. As a consequence, after waking up, all IRQ
causes will be mapped to interrupt 0, and as a consequence we
don't notice the interrupt because in most cases this is an
interrupt for a queue, and getting it doesn't read the other
cause registers.

Fixes: 2e5d4a8f61 ("iwlwifi: pcie: Add new configuration to enable MSIX")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:40:05 +03:00
Emmanuel Grumbach 4f555e602b iwlwifi: mvm: don't send fetch the TID from a non-QoS packet in TSO
Getting the TID of a packet before we know it is a QoS data
packet isn't a good idea. Delay the TID retrieval until
we know the packet is a QoS data packet.

Fixes: bb81bb68f4 ("iwlwifi: mvm: add Tx A-MSDU inside A-MPDU")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:39:29 +03:00
Johannes Berg 32026e8f70 iwlwifi: mvm: fix mac80211's hw_queue in DQA mode
When in non-DQA mode, mac80211 actually gets a pretty much perfect
idea (in vif->hw_queue/cab_queue) of which queues we're using. But
in DQA mode, this isn't true - nonetheless, we were adding all the
queues, even the ones stations are using, to the queue allocation
bitmap.

Fix this, we should only add the queues we really are using in DQA
mode:
 * IWL_MVM_OFFCHANNEL_QUEUE, as we use this in both modes
 * mvm->aux_queue, as we use this in both modes - mac80211
   never really knows about it but we use it as a cookie
   internally, so can't reuse it
 * possibly the GCAST queue (cab_queue)
 * all the "queues" we told mac80211 about we were using on each
   interface (vif->hw_queue), these are entirely virtual in this
   mode

Also add back the failure now when we can't allocate any more of
these - now virtual - queues; this was skipped in DQA mode and
would lead to having multiple ACs or even interfaces use the same
queue number in mac80211 (10, since that's the limit), which would
stop far too many queues if stopped.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:39:01 +03:00
Johannes Berg b0129db4f0 iwlwifi: mvm: map cab_queue to real one earlier
There may be a difference between the mac80211 vif->cab_queue and
mvmvif->cab_queue, particularly with TVQM. Make the code map this
earlier, instead of first returning the mac80211 one again from
iwl_mvm_get_ctrl_vif_queue().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:38:35 +03:00
Johannes Berg 37e474acc9 iwlwifi: mvm: fix mac80211 queue tracking
In the driver, we track which hardware queue is associated with
which mac80211 "hw_queue", in order to be able to stop and wake
it. When moving these bitmaps out of the queue_info structures,
the type of the bitmap was erroneously changed from u32 to u8,
presumably in order to save memory.

Turns out that u32 isn't needed, because the highest queue we
can ever tell mac80211 is always < 16, but a u16 definitely is
needed, queues >=8 do happen.

While at it, throw a BUILD_BUG_ON() into the place where we set
the limit (mvm->first_agg_queue) and a warning when it actually
gets put into the bitmap.

The consequence of this bug is that full HW queues associated
with such a too-high mac80211 number never stop higher layer
queues when full, and thus would simply drop all packets that
couldn't be enqueued to the hardware queue.

Fixes: 34e10860ae ("iwlwifi: mvm: remove references to queue_info in new TX path")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:37:43 +03:00
Johannes Berg 275896ab5f iwlwifi: mvm: properly enable IP header checksumming
The code was intended to enable IP header checksumming on AMSDUs, but
failed to really do so because the A-MSDU bit was set after all the
checksumming bits, and thus checking for A-MSDU could never be true.

Fix this by setting the A-MSDU bit before the offload bits.

Fixes: 5e6a98dc48 ("iwlwifi: mvm: enable TCP/UDP checksum support for 9000 family")
Reported-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:30:01 +03:00
Johannes Berg c42ff65da8 iwlwifi: pcie: add MSI-X interrupt tracing
We have tracing for both pre-ICT and ICT interrupts, including all
the data read there. Extend the tracing to MSI-X interrupts.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 20:27:48 +03:00
Johannes Berg e6835942a7 iwlwifi: mvm: quietly accept non-sta assoc response frames
When hostapd adds a station, it does so before sending the association
response frame, so that it can indicate the correct status code in the
response.

However, when this then fails, or the association response already is
a reject for some other reason, then there's no station entry and thus
no per-station management queue to send the response on and it must be
sent on the probe response queue. The code should therefore not warn.

In theory, we could check and warn if the status code is success, but
that seems excessive, so just relax the check to allow any association
response frames.

Fixes: 3ee0f0e23e ("iwlwifi: mvm: fix DQA AP mode station assumption")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:29:32 +03:00
Johannes Berg 4f2210ee84 iwlwifi: mvm: remove version 2 of paging command
Only a000-series devices were going to use this, but actually
initialize using the context info, which includes paging, so
this code is never invoked; remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:27 +03:00
Johannes Berg 650aaed3b3 iwlwifi: move configuration into sub-directory
Since we now support 8 device families, move their configuration
files into a new subdirectory "cfg".

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:27 +03:00
Johannes Berg 9fca9d5c97 iwlwifi: move notification wait into fw/
Move the notification wait code into the new fw interaction directory.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:27 +03:00
Johannes Berg d962f9b101 iwlwifi: create new subdirectory for FW interaction
There's a lot of mvm code that really should be more generic
and part of the iwlwifi module. Start by making a place to
keep such code - in the new "fw" subdirectory - and already
move the firmware related header files there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:27 +03:00
Johannes Berg b4f489857a iwlwifi: mvm: rename iwl_shared_mem_cfg_v1 to the correct _v2
This structure represents V2, V1 has the three last fields missing.
Rename it to be more accurate.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:26 +03:00
Johannes Berg 92c4dca6f5 iwlwifi: mvm: fix deduplication start logic
If the first frame on a given TID is received with seqno 0 and needed
to be retransmitted, we erroneously drop it because the deduplication
data is initialized to zero, and then comparing

        if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
                     dup_data->last_seq[tid] == hdr->seq_ctrl &&
                     dup_data->last_sub_frame[tid] >= sub_frame_idx))
                return true;

will return in iwl_mvm_is_dup() since last_sub_frame is also set to
zero, and sub_frame_idx is usually zero since this only covers the
relatively rare case of A-MSDU.

Fix this by initializing the last_seq array to 0xffff, which is an
impossible value for hdr->seq_ctrl to have here because the lower
four bits are the fragment number, and fragments aren't handled in
this code but go to mac80211 instead.

Fixes: a571f5f635 ("iwlwifi: mvm: add duplicate packet detection per rx queue")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:26 +03:00
Johannes Berg b092c9f25d iwlwifi: mvm: unconditionally stop device after init
In commit b93b1fe3b5 ("iwlwifi: mvm: fix init_dbg flow to work
as expected"), the code was changed to make the stop conditional
on not having failed (and on not having init_dbg), which doesn't
make sense - we should stop the device regardless of failures.

Failure to do so is leading to the device being enabled when it
shouldn't be, and - if it gets re-enabled later - the new context
info code gets confused as paging data wasn't freed.

Remove the invalid error condition again.

Fixes: b93b1fe3b5 ("iwlwifi: mvm: fix init_dbg flow to work as expected")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:26 +03:00
Johannes Berg f0fea2b728 iwlwifi: pcie: warn if paging is already initialized during init
This appears to happen in some cases, like when iwlmvm is unloaded and
loaded again without also unloading iwlwifi. Warn in this case and free
the paging data to be able to continue without causing corruption and
kernel crashes due to it (otherwise, paging data is overwritten, but
dram->paging_cnt gets to be twice as big as it should be, and then an
eventual free will crash.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:26 +03:00
Johannes Berg 87fc030231 iwlwifi: pcie: make ctxt-info free idempotent
By setting the pointers to NULL at the end, these functions
are made idempotent.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:26 +03:00
Johannes Berg 3b37f4c99c iwlwifi: unify external & internal modparam names
Where possible (all except for "11n_disable", which isn't valid in C)
rename the internal names for module parameters to be the same as the
externally visible names, to aid finding their use etc.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Liad Kaufman cba46988c0 iwlwifi: mvm: support multi tid ba notif
When receiving a BA_NOTIF on new TX API, it can
contain BAs for several TIDs. Go over them and
reclaim TX for every TID.

Note that although the small API change, the API
version still isn't bumped forward, as this NIC
isn't still officially released.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Emmanuel Grumbach b3de3ef48a iwlwifi: mvm: change when the BT_COEX is sent
The BT_COEX command should not be sent to the INIT
firmware image starting from 8000 family.
The firmware team also requested to send the BT_COEX
command after the PHY_DB_CMD and the PHY_CFG_CMD.

While at it:
s/iwl_send_bt_init_conf/iwl_mvm_send_bt_init_conf/

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Johannes Berg 3bfdee768c iwlwifi: pcie: improve debug in iwl_pcie_rx_handle_rb()
Print the queue for the existing debug message and add a new
debug message indicating where the RB ended.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Liad Kaufman a58bb46855 iwlwifi: mvm: support aggs of 64 frames in A000 family
A SCD bug was fixed in the A000 family, allowing to
support aggregations of 64 frames (rather than 63).

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Johannes Berg a395058eb6 iwlwifi: pcie: improve "invalid queue" warning
Print out both queue IDs to be able to see what went wrong.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Johannes Berg 91109f42d0 iwlwifi: mvm: use proper CDB check in PHY context modify
When the firmware supports CDB, PHY contexts cannot be modified to
change their band, but need to be added/remove instead. Instead of
relying on iwl_mvm_has_new_tx_api(), check the right FW capa flag
IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT and remove the comment.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Tzipi Peres 4e37b063ad iwlwifi: add twelve new 9560 series PCI IDs
Add twelve new PCI IDs for the 9560 series.

Signed-off-by: Tzipi Peres <tzipi.peres@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:25 +03:00
Tzipi Peres 175b87c692 iwlwifi: add the new a000_2ax series
Add a new config struct for the new a000 2ax series and add
the five PCI ID for it.

Signed-off-by: Tzipi Peres <tzipi.peres@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Luca Coelho 4c324a51b6 iwlwifi: mvm: simplify CHECK_MLME_TRIGGER macro
There's no reason to pass mvm and trig as parameters to the macro,
since it will be expanded inside the function itself.  Also remove the
bogus buf parameter which doesn't exist and is not used.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Sharon Dvir 806911da64 iwlwifi: mvm: change sta_id to u8
The sta_id variable is used as an index in an array, should be unsigned.
Found by Klocwork.

Fixes: 9f9af3d7d3 ("iwlwifi: mvm: re-aggregate shared queue after unsharing")
Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg ae5bb2a62d iwlwifi: pcie: fix 9000-series RF-kill interrupt propagation
A hardware issue on 9000 series devices sometimes causes RF-kill
interrupts to not be propagated to the host properly if ASPM is
enabled. Work around this by setting the right hardware bit to
allow it to interrupt the host for this reason (rfkill).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg 565291c60a iwlwifi: pcie: only apply retention workaround on 9000-series A-step
Due to a hardware issue, certain power saving had to be
disabled. However, this issue was fixed in B-step, so the
workaround only needs to apply to A-step.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg 779e0513c7 iwlwifi: dvm: use macros for format strings
Some static checkers (e.g. smatch) complain if a non-constant
format string is used, even if that's a static const variable.
Since there's no impact on code generation, just change those
format strings to be macros.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg acf91dda3f iwlwifi: mvm: fix a bunch of kernel-doc warnings
Fix the kernel-doc, and remove some fields even the firmware doesn't
use in ToF, RX, scan, station and generic FW APIS.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg 358631bf44 iwlwifi: mvm: add documentation for all command IDs
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg cecb43c7b5 iwlwifi: mvm: use __le16 even for reserved fields
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg 40e07545d1 iwlwifi: mvm: remove various unused command IDs/structs
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg 83b0319abc iwlwifi: mvm: fix various "Excess ... description" kernel-doc warnings
Fix various "Excess struct/union/enum/typedef member '...' description
in '...'" warnings from kernel-doc, mostly caused by typos.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg 1644be9189 iwlwifi: mvm: remove some CamelCase from firmware API
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Haim Dreyfuss e6ee06575b iwlwifi: mvm: Add debugfs entry to retrieve SAR geographic profile
Add a debugfs entry to get a verbose description of the power settings
used in each band with the currently selected SAR geographic profile.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Haim Dreyfuss 7fe90e0e3d iwlwifi: mvm: refactor geo init
We are going to add debugfs entry to retrieve the current geographic
profile being used in the FW. Currently the driver reads those tables
from the BIOS and passes them to the FW.
To prepare for this retrieving we want to store those
tables in the driver.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Kalle Valo fdcbe65d61 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.13. Major changes:

Only bugfixes or cleanups, no new features.
2017-06-28 22:10:48 +03:00
Colin Ian King 3334c28ec5 mwifiex: fix spelling mistake: "secuirty" -> "security"
Trivial fix to spelling mistake in mwifiex_dbg message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 22:06:50 +03:00
Gustavo A. R. Silva 059c98599b wl18xx: add checks on wl18xx_top_reg_write() return value
Check return value from call to wl18xx_top_reg_write(),
so in case of error jump to goto label out and return.

Also, remove unnecessary value check before goto label out.

Addresses-Coverity-ID: 1226938
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 21:18:40 +03:00
Dan Carpenter 69551f5f37 libertas: Fix lbs_prb_rsp_limit_set()
The kstrtoul() test was reversed so this always returned -ENOTSUPP.

Fixes: 27d7f47756 ("net: wireless: replace strict_strtoul() with kstrtoul()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: James Cameron <quozl@laptop.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 21:18:08 +03:00
Bhumika Goyal 3ac27dd37b cw1200: add const to hwbus_ops structures
Declare hwbus_ops structures as const as they are only passed as an
argument to the function cw1200_core_probe. This argument is of type
const. So, make these structures const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 21:17:46 +03:00
Colin Ian King 58828680af rsi: add in missing RSI_FSM_STATES into array fsm_state
Two recent commits added new RSI_FSM_STATES (namely FSM_FW_NOT_LOADED
and FSM_COMMON_DEV_PARAMS_SENT) and the corresponding table fsm_state
was not updated to match. This can lead to an array overrun when
accessing the latter two states in fsm_state. Fix this by adding in
the missing states.

Detected by CoverityScan, CID#1398379 ("Illegal address computation")

Fixes: 9920322ccd ("rsi: add tx frame for common device configuration")
Fixes: 015e367494 ("rsi: Register interrupt handler before firmware load")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:54:14 +03:00
Arend Van Spriel 270a6c1f65 brcmfmac: rework headroom check in .start_xmit()
Since commit 9cc4b7cb86 ("brcmfmac: Make skb header writable
before use") the headroom usage has been fixed. However, the
driver was keeping statistics that got lost. So reworking the
code so we get those driver statistics back for debugging.

Cc: James Hughes <james.hughes@raspberrypi.org>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:53:06 +03:00
Arend Van Spriel a833f3d4de brcmfmac: use atomic_t for statistic counter in struct brcmf_bus
The statistic counter is used in common layer and in the bus layer
in different thread contexts so change to use atomic operations.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:53:05 +03:00
Arend Van Spriel ca2e99b2ca brcmfmac: cleanup kerneldoc for struct brcmf_bus
A couple of old fields were still described and one field was not
described.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:53:05 +03:00
Ganapathi Bhat 4d7ab36f0c mwifiex: Do not change bss_type in change_virtual_intf
When user adds a virtual interface driver will set the
bss_type to the iface_type given by the user. When
supplicant is started on the same interface, a call to
change_virtual_intf will be triggered if if_type is not
NL80211_IFTYPE_STATION. Here driver should not update
it's bss_type, because bss_type is intended to indicate
the original iface_type and changing the same will defeat
the purpose of creating this interface.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:52:21 +03:00
Ping-Ke Shih 76f146b664 rtlwifi: Add in_4way field for btcoexist
If wifi is in 4way, btcoex give wifi higher priority to use antenna.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:51:01 +03:00
Ping-Ke Shih c76ab8e754 rtlwifi: Fill ap_num field by driver
Check beacon and probe_resp frames to know ap_num

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:51:01 +03:00
Ping-Ke Shih f1cb27eda3 rtlwifi: Add ap_num field for btcoexist
If there are many AP (dirty environment), we use another strategy set
to resolve coex issue.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:51:00 +03:00
Ping-Ke Shih 8488e211d6 rtlwifi: Add return value to btc_set.
We will use return value to handle error case.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:51:00 +03:00
Ping-Ke Shih 838dd0d3ff rtlwifi: Update some cases in btc_get function -- roam, 5G, AP mode, and return value.
Return value may be false in some situations.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:50:59 +03:00
Ping-Ke Shih 1024b31629 rtlwifi: Modify power mode parameters of 8723be and 8821ae.
Change the parameters suggested by FW.
awake int: 2
smart_ps: 2 or 0
ps_mode: 2 (MAX -- every DTIM)

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:50:59 +03:00
Ping-Ke Shih a70883920e rtlwifi: Do IQK only once to reduce wifi occupy antenna
Modify 8723be and 8192e only.
8812/8821 do IQK in DM, so we may do it later.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:50:58 +03:00
Ping-Ke Shih 135f4fbd75 rtlwifi: Fix a2dp choppy while BT RSSI stays on threshold.
In this case, BTC asks to enter/leave PS mode frequently to cause A2DP
choppy.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:50:58 +03:00
Colin Ian King 3e3d8aa611 qtnfmac: fix uninitialized return code in ret
The return value ret is unitialized and garbage is being returned
for the three different error conditions when setting up the PCIe
BARs. Fix this by initializing ret to  -ENOMEM to indicate that
the BARs failed to be setup correctly.

Detected by CoverityScan, CID#1437563 ("Unitialized scalar variable")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28 20:50:12 +03:00
Gustavo A. R. Silva 6788a3832c ath9k: remove useless variable assignment in ath_mci_intr()
Value assigned to variable offset at line 551 is overwritten at line 562,
before it can be used. This makes such variable assignment useless.

Addresses-Coverity-ID: 1226941
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:56:36 +03:00
Colin Ian King 23de57975f ath10k: fix a bunch of spelling mistakes in messages
Fix the following spelling mistakes in messages:
  syncronise -> synchronize
  unusally -> unusually
  addrress -> address
  inverval -> interval

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:55:44 +03:00
Miaoqing Pan f23cdfb3fe ath9k: Use mutex_lock to avoid potential race in start/stop rng
Move ath9k_rng_stop/ath9k_rng_start pair into critical section,
use mutex_lock to void potential race accessing.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:54:43 +03:00
Miaoqing Pan 473becac4b ath9k: avoid potential freezing during random generator read
In the worst case, ath9k_rng_stop() may take 10s to stop rng kthread.
The time is too long for users, use wait_event_interruptible_timeout()
instead of msleep_interruptible(), wakup immediately once
kthread_should_stop() is true.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:54:38 +03:00
Miaoqing Pan 07246c1158 ath9k: fix an invalid pointer dereference in ath9k_rng_stop()
The bug was triggered when do suspend/resuming continuously
on Dell XPS L322X/0PJHXN version 9333 (2013) with kernel
4.12.0-041200rc4-generic. But can't reproduce on DELL
E5440 + AR9300 PCIE chips.

The warning is caused by accessing invalid pointer sc->rng_task.
sc->rng_task is not be cleared after kthread_stop(sc->rng_task)
be called in ath9k_rng_stop(). Because the kthread is stopped
before ath9k_rng_kthread() be scheduled.

So set sc->rng_task to null after kthread_stop(sc->rng_task) to
resolve this issue.

WARNING: CPU: 0 PID: 984 at linux/kernel/kthread.c:71 kthread_stop+0xf1/0x100
CPU: 0 PID: 984 Comm: NetworkManager Not tainted 4.12.0-041200rc4-generic #201706042031
Hardware name: Dell Inc.          Dell System XPS L322X/0PJHXN, BIOS A09 05/15/2013
task: ffff950170fdda00 task.stack: ffffa22c01538000
RIP: 0010:kthread_stop+0xf1/0x100
RSP: 0018:ffffa22c0153b5b0 EFLAGS: 00010246
RAX: ffffffffa6257800 RBX: ffff950171b79560 RCX: 0000000000000000
RDX: 0000000080000000 RSI: 000000007fffffff RDI: ffff9500ac9a9680
RBP: ffffa22c0153b5c8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffa22c0153b648 R11: ffff9501768004b8 R12: ffff9500ac9a9680
R13: ffff950171b79f70 R14: ffff950171b78780 R15: ffff9501749dc018
FS:  00007f0d6bfd5540(0000) GS:ffff95017f200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc190161a08 CR3: 0000000232906000 CR4: 00000000001406f0
Call Trace:
  ath9k_rng_stop+0x1a/0x20 [ath9k]
  ath9k_stop+0x3b/0x1d0 [ath9k]
  drv_stop+0x33/0xf0 [mac80211]
  ieee80211_stop_device+0x43/0x50 [mac80211]
  ieee80211_do_stop+0x4f2/0x810 [mac80211]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196043
Reported-by: Giulio Genovese <giulio.genovese@gmail.com>
Tested-by: Giulio Genovese <giulio.genovese@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:54:33 +03:00
Bhumika Goyal 1cdb6c9fd4 ath10k: add const to thermal_cooling_device_ops structure
Declare thermal_cooling_device_ops structure as const as it is only passed
as an argument to the function thermal_cooling_device_register and this
argument is of type const. So, declare the structure as const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:53:40 +03:00
Miaoqing Pan bde717ab47 ath9k: fix tx99 bus error
The hard coded register 0x9864 and 0x9924 are invalid
for ar9300 chips.

Cc: <stable@vger.kernel.org>
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:52:26 +03:00
Miaoqing Pan cf8ce1ea61 ath9k: fix tx99 use after free
One scenario that could lead to UAF is two threads writing
simultaneously to the "tx99" debug file. One of them would
set the "start" value to true and follow to ath9k_tx99_init().
Inside the function it would set the sc->tx99_state to true
after allocating sc->tx99skb. Then, the other thread would
execute write_file_tx99() and call ath9k_tx99_deinit().
sc->tx99_state would be freed. After that, the first thread
would continue inside ath9k_tx99_init() and call
r = ath9k_tx99_send(sc, sc->tx99_skb, &txctl);
that would make use of the freed sc->tx99_skb memory.

Cc: <stable@vger.kernel.org>
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28 19:52:21 +03:00
Kalle Valo b90a16854d More iwlwifi patches for 4.13
* Some changes in suspend/resume handling to support new FWs;
 * A bunch of RF-kill related fixes;
 * Continued work towards the A000 family;
 * Support for a new version of the TX flush FW API;
 * Some fixes in monitor interfaces;
 * A few fixes in the recovery flows;
 * Johannes' documentation fixes and FW API struct cleanups continue;
 * Remove some noise from the kernel logs;
 * Some other small improvements, fixes and cleanups;
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEF3LNfgb2BPWm68smoUecoho8xfoFAllTgG4ACgkQoUecoho8
 xfopuBAAnRfYFrgZJ+hasZBNjaP2n1dc3wutnOMfly79owxUy7Iw7ekuo3MKZuxr
 kLv7l02Zbo8hG9KO/sAvsjVNEIhnPrD1bUuY2DCJb5+ap2BWoFkA9+Z1nw5K1q2z
 zD+nlAVE+v0rdmRe/gt6+s3kgQKahvqgotXJ/ObOuoaphQRm1VP22eVKl+XTG1gL
 9NwmJ/ohuqwjVDVsv6ThTOq1pfbf0r065pUHrbSvCh7Wtus9KSloNajRbHhHjmz7
 DG1Lop1bWTlEwYuGyJpFGwVt2hUcFb4sO6chzWhBxIeX/NBNHy+8ooY6dFbExgfD
 ++Co/HbMLZr9KRrIRxCkoe5Z1X5VaQR6rpUWLIWSvMrBb1CreBW4YdTdSdAPzk+n
 MlyF2s3SxJkl/wvXCmwKsy02RX+X6ncbZ0/ihRoi+PAw4UI1sqbQN8y8/IlbNORc
 fTBAqVpph+yyrUQoFlepSWTmVOGwKivbxEWZmKNpCbLBWMCA+nGwRbJnhMkj/bc2
 Xkl17S4CTHD2basikiUiXjObKPPFw9c+ZuNgX+DnBD0qmyBilxgYuXRpaXRTPl1N
 YbPygbEyiUeOzGS9fQcnLVEHVmvqRrFChD1eM6ag2nw2CVz5n57Zyu8j1QQQLq7F
 Wsx7WE+sf/P48shVVkcXgCiZ7Bk10knSHC77ox4tH3PmLiVDNag=
 =DdqX
 -----END PGP SIGNATURE-----

Merge tag 'iwlwifi-next-for-kalle-2017-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

More iwlwifi patches for 4.13

* Some changes in suspend/resume handling to support new FWs;
* A bunch of RF-kill related fixes;
* Continued work towards the A000 family;
* Support for a new version of the TX flush FW API;
* Some fixes in monitor interfaces;
* A few fixes in the recovery flows;
* Johannes' documentation fixes and FW API struct cleanups continue;
* Remove some noise from the kernel logs;
* Some other small improvements, fixes and cleanups;
2017-06-28 18:55:55 +03:00
Christophe Jaillet 57c00f2fac brcmfmac: Fix a memory leak in error handling path in 'brcmf_cfg80211_attach'
If 'wiphy_new()' fails, we leak 'ops'. Add a new label in the error
handling path to free it in such a case.

Cc: stable@vger.kernel.org
Fixes: 5c22fb8510 ("brcmfmac: add wowl gtk rekeying offload support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-27 17:15:45 +03:00
Arend Van Spriel dca2307ed6 brcmfmac: fix double free upon register_netdevice() failure
The function brcmf_net_attach() can only fail when register_netdevice()
fails. When this happens register_netdevice() calls priv_destructor, ie.
brcmf_cfg80211_free_netdev() freeing the vif instance. Also upon this
failure brcmf_net_attach() calls free_netdev(). However, callers are also
doing cleanup resulting in double free. In some places they need netdev
private space as it holds parameters to communicate with the device. So
we want to do the cleanup only in callers of brcmf_net_attach() by making
the following changes:

 - set priv_destructor after register_netdevice() succeeds.
 - remove call to free_netdev() in brcmf_net_attach().
 - call free_netdev() in brcmf_net_detach() for unregistered netdev.
 - add free_netdev() if brcmf_net_attach() fails for a created interface.

Fixes: cf124db566 ("net: Fix inconsistent teardown and release of private netdev state.")
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-27 17:13:57 +03:00
David S. Miller 24a72b77f3 wireless-drivers-next patches for 4.13
New features and bug fixes to quite a few different drivers, but
 nothing really special standing out.
 
 What makes me happy that we have now more vendors actively
 contributing to upstream drivers. In this pull request we have patches
 from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I
 still have patches from Marvell and Quantenna pending in patchwork. Now
 that's something comparing to how things looked 11 years ago in Jeff
 Garzik's "State of the Union: Wireless" email:
 
 https://lkml.org/lkml/2006/1/5/671
 
 Major changes:
 
 wil6210
 
 * add low level RF sector interface via nl80211 vendor commands
 
 * add module parameter ftm_mode to load separate firmware for factory
   testing
 
 * support devices with different PCIe bar size
 
 * add support for PCIe D3hot in system suspend
 
 * remove ioctl interface which should not be in a wireless driver
 
 ath10k
 
 * go back to using dma_alloc_coherent() for firmware scratch memory
 
 * add per chain RSSI reporting
 
 brcmfmac
 
 * add support multi-scheduled scan
 
 * add scheduled scan support for specified BSSIDs
 
 * add support for brcm43430 revision 0
 
 wlcore
 
 * add wil1285 compatible
 
 rsi
 
 * add RS9113 USB support
 
 iwlwifi
 
 * FW API documentation improvements (for tools and htmldoc)
 
 * continuing work for the new A000 family
 
 * bump the maximum supported FW API to 31
 
 * improve the differentiation between 8000, 9000 and A000 families
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJZT/ROAAoJEG4XJFUm622b/IwH+wQtBXP+P57DZ97BdETcZ3Wd
 ejm9KKT3IxcP7kzItT9UR1zv7LNx4NgSkJMfhf37jJ1WIuE2fp/ctNv6mz3PvohW
 jD1fLynwEMMC7PLHEy5+xGtL61KYc2mtXs/bfLFl94hZUiaocrsBDIT4fXoyIWif
 y3MUlBKDbHA27ULRd485C0MRekRSvR/rq6iST4KsIsa8RflJbdH64teTEnQPp4kh
 nvhfnaxVEqHK7mYbarC58yYLNOU8gfQXmeeTfd6jhCXRjfEw37IvtNC8BT4B9ZDX
 YMZLbkeDSwNGXIH7EIrpGOYHCPh+qsiJ+sx7YodomcJvd1nVrmbuZZt9/EqWXuY=
 =Fd/c
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2017-06-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.13

New features and bug fixes to quite a few different drivers, but
nothing really special standing out.

What makes me happy that we have now more vendors actively
contributing to upstream drivers. In this pull request we have patches
from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I
still have patches from Marvell and Quantenna pending in patchwork. Now
that's something comparing to how things looked 11 years ago in Jeff
Garzik's "State of the Union: Wireless" email:

https://lkml.org/lkml/2006/1/5/671

Major changes:

wil6210

* add low level RF sector interface via nl80211 vendor commands

* add module parameter ftm_mode to load separate firmware for factory
  testing

* support devices with different PCIe bar size

* add support for PCIe D3hot in system suspend

* remove ioctl interface which should not be in a wireless driver

ath10k

* go back to using dma_alloc_coherent() for firmware scratch memory

* add per chain RSSI reporting

brcmfmac

* add support multi-scheduled scan

* add scheduled scan support for specified BSSIDs

* add support for brcm43430 revision 0

wlcore

* add wil1285 compatible

rsi

* add RS9113 USB support

iwlwifi

* FW API documentation improvements (for tools and htmldoc)

* continuing work for the new A000 family

* bump the maximum supported FW API to 31

* improve the differentiation between 8000, 9000 and A000 families
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25 14:45:34 -04:00
Ingo Molnar 1bc3cd4dfa Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-24 08:57:20 +02:00
Liad Kaufman 6d759b02f4 iwlwifi: mvm: support TX on MONITOR iface
When trying to TX through a monitor interface, the
conditions in iwl_mvm_tx_skb_non_sta() don't match
and the frame tries to go out from an usued TXQ.

Add a check for monitor iface, and use the AUX queue
in such a case.

In non-DQA mode the frame is sent through the
static-allocated queues anyway, so the problem is
in DQA mode only.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:27:52 +03:00
Johannes Berg c00ee467b3 iwlwifi: pcie: work around suspend/resume issue
In some platforms, having the device enabled with certain radio
frontends causes the platform to not be able to resume properly
from suspend, regardless of the wakeup cause. This was traced to
a hardware issue with the integrated 9000-series A-step variant.
Set the right hardware bit to disable the problematic state.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:27:31 +03:00
Chaya Rachel Ivgi 3b9449bb1d iwlwifi: mvm: fix typo in CTDP_CMD_OPERATION_REPORT description
Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:27:11 +03:00
Emmanuel Grumbach 7d75f32e09 iwlwifi: pcie: delete the Tx queue timer earlier upon firmware crash
When the firmware crashes, the transmit queues can't make
any progress. This is why we stop the counter that monitor
the transmit queues' activity.
The call that notifies the error to the op_mode may take
a bit of time, so stop the timer of the transmit queues
earlier.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:20:55 +03:00
Luca Coelho d74a61fc6b iwlwifi: pcie: reduce unwanted noise in the logs
The driver prints "L1 Enabled - LTR Enabled" all the time as dev_info,
which is just useless noise in most cases.  Convert this to
IWL_DEBUG_POWER() so we don't pollute the log unnecessarily but still
can get this info on demand.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:20:39 +03:00
Luca Coelho 4409e72b71 iwlwifi: mvm: print base HW address during init
It's sometimes hard to find out which HW address the iwlwifi device is
using, for instance when reading crouded sniffer logs.  To make it
easier, print out an info level message with the HW address as soon as
we know it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:20:16 +03:00
Luca Coelho a8d011446b iwlwifi: mvm: document assoc_beacon_arrive_time
Document the assoc_beacon_arrive_time element in the iwl_mac_data_sta
struct.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:19:54 +03:00
Mordechai Goodstein d167e81ad4 iwlwifi: mvm: support new flush API
This new API allows flushing queues based on station ID and TID in A000
devices.  One reason for using this is that tfd_queue_mask is only good
for 32 queues, which is not enough for A000 devices.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:19:33 +03:00
Emmanuel Grumbach a509a248bb iwlwifi: mvm: reset the fw_dump_desc pointer after ASSERT
When we get an ASSERT, the fw_dump_desc pointer points to
iwl_mvm_dump_desc_assert which can't be freed since it is
a global. We still need to NULL'ify the pointer when we
call iwl_mvm_free_fw_dump_desc otherwise we will hit

int iwl_mvm_fw_dbg_collect_desc(struct iwl_mvm *mvm,
                                const struct iwl_mvm_dump_desc *desc,
                                const struct iwl_fw_dbg_trigger_tlv *trigger)
{
<snip>
        if (WARN_ON(mvm->fw_dump_desc))
                iwl_mvm_free_fw_dump_desc(mvm);

Fixes: b6eaa45aa1 ("iwlwifi: mvm: add the cause of the firmware dump in the dump")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:09:13 +03:00
Avraham Stern b566972725 iwlwifi: mvm: set assoc_beacon_arrive_time
When updating the mac context after association,
assoc_beacon_arrive_time is not being set, which causes the FW to
set a wrong TSF to the MAC.

Fix this by setting the assoc_beacon_arrive_time when updating the
mac context after association.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:08:34 +03:00
Johannes Berg e8c8935efd iwlwifi: pcie: make iwl_pcie_apm_stop_master() return void
Nothing ever checks the return value of iwl_pcie_apm_stop_master(),
so there's no point in it having one - make it return void.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:08:12 +03:00
Emmanuel Grumbach dcfbd67b4b iwlwifi: add a W/A for a scheduler hardware bug
In case we need to move the scheduler write pointer by
steps of 0x40, 0x80 or 0xc0, the scheduler gets stuck.
This leads to hardware error interrupts with status:
0x5A5A5A5A or alike.

In order to work around this, detect in the transport
layer that we are going to hit this case and tell iwlmvm
to increment the sequence number of the packets. This
allows to keep the requirement that the WiFi sequence
number is in sync with the index in the scheduler Tx queue
and it also allows to avoid the problematic sequence.
This means that from time to time, we will start a queue
from ssn + 1, but that shouldn't be a problem since we
don't switch to new queues for AMPDU now that we have
DQA which allows to keep the same queue while toggling
the AMPDU state.

This bug has been fixed on 9000 devices and up.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:07:04 +03:00
Emmanuel Grumbach 59df97f722 iwlwifi: mvm: don't mark TIDs that are not idle wrt BA as inactive
A TID may not have traffic but still have a BA agreement
active (or being setup / torn down) since a BA agreement
can be triggered by a debugfs hook.
Just avoid to consider such a TID as inactive to make the
logic safer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:06:39 +03:00
Luca Coelho 6b54ebf73b iwlwifi: mvm: reset the HW before dumping if HW error is detected
If the hardware is stuck, we can't read any of the memory we need to
dump it, so we end up printing only 0xa5a5a5a5, which is useless.

To solve this, poke the hardware by triggering a reset and re-enabling
the clocks if we detect a HW error.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:06:14 +03:00
Luca Coelho ffd6fd4561 iwlwifi: pcie: don't disable bh when handling FW errors
When we started using threaded irqs, all the opmode calls were changed
to be called with local_bh disabled.  The reason for this was it was
that mac80211 needs that.  When we are handling FW errors, mac80211 is
not involved, so we don't need it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:05:51 +03:00
Emmanuel Grumbach 6b28f9784c iwlwifi: mvm: fix the recovery flow while connecting
In BSS mode in the disconnection flow, mac80211 removes
the AP station before the vif is set to unassociated.
Our firmware wants it the other way around: first set
the vif as unassociated, and then remove the AP station.

In order to bridge between those two different behaviors,
iwlmvm doesn't remove the station from the firmware when
mac80211 removes it, but only after the vif is set to
unassociated. The implementation is in
iwl_mvm_bss_info_changed_station:

if (assoc state was modified && mvmvif->ap_sta_id is VALID
    && assoc state is now UNASSC)
	remove_the_station_from_the_firmware()

During the recovery flow, mac80211 re-adds the AP station
and then reconfigures the vif. Since the vif is not
associated, and then, we enter the if above (which was
intended to be taken in the disconnection flow only) and
remove the station we just added. This defeats the
recovery flow.

Fix this by not removing the AP station in this flow if
we are in recovery flow.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:04:14 +03:00
Luca Coelho 946af0079c iwlwifi: mvm: fix nvm_data leak
We allocate nvm_data in iwl_mvm_nvm_get_from_fw().  If something goes
wrong after the allocation (i.e. if no valid MAC address is valid), we
should free nvm_data before returning an error.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:03:13 +03:00
Luca Coelho 1dad3e0a31 iwlwifi: remove useless iwl_free_nvm_data() function
This function just calls kfree(), so it only obscures the code without
bringing any benefits.  Remove it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:02:58 +03:00
Johannes Berg d98d6fb9f1 iwlwifi: document transmit buffer bits better
Properly document the transmit buffer bits using an enum and
kernel-doc documentation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:01:19 +03:00
Johannes Berg e6138c9ca5 iwlwifi: mvm: add documentation for enum iwl_debug_cmds
Add kernel-doc documentation for enum iwl_debug_cmds, linking the
structures used by the commands.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:01:02 +03:00
Johannes Berg a6a621934e iwlwifi: mvm: disentangle union in TX status struct
This improves documentation, since kernel-doc can't deal with the
union well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:00:41 +03:00
Liad Kaufman 3e73148406 iwlwifi: mvm: fix fw monitor 7000 HW recollecting
To stop and start the FW monitor in the 7000 HW
family we need to use a different bit, otherwise
after stopping it for the first time - it won't
get restarted. Use the correct bitmask.

Note: This fix is only for DRAM collection mode.
      For other modes, an additional fix will be
      needed.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:00:28 +03:00
Johannes Berg 7b7cab79b8 iwlwifi: mvm: docs: fix enum link, provide TX response link
Fix the enum link by adding the missing & and provide the link
to the TX response documentation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 11:59:05 +03:00
Johannes Berg d490e09784 iwlwifi: pcie: fix command completion name debug
When the command name is printed on command completion, the wrong
group is used, leading to the wrong name being printed. Fix this
by using the group ID without inappropriately mangling it through
iwl_cmd_groupid() - it's already a u8. Also, while at it, use it
from the same place as the command ID, everything else is just
confusing.

Fixes: ab02165cce ("iwlwifi: add wide firmware command infrastructure for TX")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 11:58:32 +03:00
Johannes Berg 8790fce4f6 iwlwifi: fix TX tracing for non-linear SKBs
When sending non-linear SKBs that should be included in the regular
TX tracing completely (and not be pushed into the tx_data tracing),
the (tracing) code didn't correctly take the fact that they were
non-linear into account and added only the skb head portion.

This probably never really triggered, since those frames we want
traced fully are most likely linear anyway, but the code gets easier
to understand and we lose an argument to the tracing function, so
overall fixing this is better.

Fixes: 206eea7833 ("iwlwifi: pcie: support frag SKBs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 11:57:48 +03:00
Johannes Berg 78c1acf35f iwlwifi: simplify data tracepoint
There's no need to calculate the data_len outside of the tracepoint,
since it's always skb->len - hdr_len, which are both available inside.
Simplify the callers and move the calculation in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 11:57:20 +03:00
Johannes Berg 550aba9b8d iwlwifi: mvm: better link scan notification results length
Show the name of the member (scanned_channels) that provides the
length with some better markup.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg 078f11311f iwlwifi: pcie: use kstrtou32_from_user()
Use kstrtou32_from_user() in debugfs instead of open-coding it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Liad Kaufman dd32162da4 iwlwifi: mvm: support aggregations on A000 HW
On A000 HW, the SCD rdptr has only 8 bits allocated
for it, thus when checking if a queue is full, or
when checking if the SSN is equal to the TID's
next_reclaimed, A000 HW should trim the SSN.

Fix this by "normalizing" the SSN to wrap around
0xFF when comparing to the next_reclaimed on A000
HW.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg 87afe9b0f4 iwlwifi: mvm: document status bits
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg 302b5e9e7d iwlwifi: pcie: remove pointless debugfs parsing for csr file
We don't actually care about the value at all, just making sure
that we can successfully parse a single integer value, but that's
entirely pointless - remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg 326477e485 iwlwifi: pcie: don't report RF-kill enabled while shutting down
When toggling the RF-kill pin quickly in succession, the driver can
get rather confused because it might be in the process of shutting
down, expecting all commands to go through quickly due to rfkill,
but the transport already thinks the device is accessible again,
even though it previously shut it down. This leads to bugs, and I
even observed a kernel panic.

Avoid this by making the PCIe code only report that the radio is
enabled again after the higher layers actually decided to shut it
off.

This also pulls out this common RF-kill checking code into a common
function called by both transport generations and also moves it to
the direct method - in the internal helper we don't really care
about the RF-kill status anymore since we won't report it up until
the stop anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Johannes Berg 6ad0435991 iwlwifi: mvm: don't warn in queue sync on RF-kill
If we happen to be in or get into the queue sync when RF-kill
is asserted, we return from there and warn since there are
still queue sync notifications outstanding. These can't ever
come though, because we're in RF-kill, so don't WARN then.

While at it, also move the warning to the appropriate place,
if the request is not synchronous then we shouldn't warn, but
currently always will.

To make it fast, also trigger the waitq when on rfkill assert.

Fixes: 0636b93821 ("iwlwifi: mvm: implement driver RX queues sync command")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Johannes Berg fa4de7f7c3 iwlwifi: pcie: add fake RF-kill to debugfs
In order to debug "hardware" RF-kill flows, add a low-level hook to
allow changing the "hardware" RF-kill from debugfs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Johannes Berg 3a6e168baa iwlwifi: pcie: pull out common rfkill IRQ handling code
There's no point in duplicating exactly the same code here
for legacy and MSI-X interrupts, so pull it out into a new
function to call in both places.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Gregory Greenman 8f6438f72a iwlwifi: mvm: rs: add logs for the wrong antenna case
In case that rate's antenna is wrong at the init stage, it's
very hard to say what went wrong. Add debug data to the already
existing WARN_ON_ONCE.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Johannes Berg 28269897c6 iwlwifi: mvm: make iwl_mvm_update_mcc() easier to follow
Some static checkers (e.g. smatch) complain about the logic, saying that
resp_cp might be leaked. Clearly that isn't true, but making the logic
easier to follow does not result in any significant code changes and makes
the code more readable by moving the NULL check closer to its source.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Mordechai Goodstein e9eb0fa247 iwlwifi: mvm: change the firmware name loading
The firmware moved the development from a0 MAC to z0.
z0 is using the same RFID and device ID as a0 so we only
need to switch the name.

Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Luca Coelho fcea37b2cf iwlwifi: mvm: support D0I3_END_CMD at the start of resume
New FW versions require the D0I3_END_CMD to be sent as the first
command to the FW in the resume flow.  If the TLV is set, send that
command first, otherwise keep the original behavior (i.e. send last).

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Luca Coelho f28b936124 iwlwifi: mvm: make D0I3_END_CMD sync during system resume
There is no need to send D0I3_END_CMD as ASYNC during the system
resume flow.  Additionally, the other flags used are meaningless in
this case (they were just copied from the runtime resume flow), so
remove them all.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg 2f0282db41 iwlwifi: mvm: track and report IBSS manager status to mac80211
Shaul reported that when iwlmvm was sending beacons, it didn't properly
also take ownership of the probe responses. This is because the whole
mac80211 callback (tx_last_beacon) wasn't implemented. Fix that to make
IBSS discovery work better.

Reported-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg f3779f476b iwlwifi: use bitfield.h for some registers
Letting the preprocessor/compiler generate the shift/mask by itself
is a win for readability, so use bitfield.h for some registers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg 40e86a3619 iwlwifi: mvm: use scnprintf() instead of snprintf()
It's safer to use scnprintf() here because the buffer might
be too short for the full format strings. In most cases
this isn't true because of external limits on the values.

In one case, this fixes a stack data leak.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg a9c50726ce iwlwifi: mvm: avoid variable shadowing
Avoid one kind of symbol shadowing another in iwl_mvm_flush_sta()
by renaming the function parameter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg f8565f3329 iwlwifi: pcie: fix TVQM queue ID range check
The queue ID should never be 512 either, so correct the check
to be >= instead of just >.

Fixes: 310181ec34 ("iwlwifi: move to TVQM mode")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg aeb8012cdf iwlwifi: mvm: remove pointless num_stored condition
Since we exit if buf->num_stored is 0, there's no need to
check it again later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Emmanuel Grumbach 6f2f019495 iwlwifi: mvm: avoid unnecessary cache trashing in Tx path
When sending a Tx Command with a Tx packet, we allocate the
Tx command separately from the payload of the packet.
The WiFi MAC header is then copied into the buffer that was
allocated for the Tx Command. This means that this buffer
needs to be big enough to contain both. This is why it is
allocated with iwl_trans_alloc_tx_cmd which returns a
pointer to a newly allocated not zeroed struct
iwl_device_cmd.

The Tx command has a few bit fields and hence it needs to
be zeroed, but all the rest of the buffer doesn't need to
be zeroed since it will either be memcopy'ed with the MAC
header, or not even sent to the device.
This means that we don't need to zero all the
iwl_device_cmd structure, but rather only the size of
the iwl_tx_cmd structure.

Since sizeof(iwl_tx_cmd) - sizeof(iwl_tx_cmd) is about
260 bytes, this can avoid touching 4 cache lines for each
packet.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
David Spinadel 85aeb58cec iwlwifi: mvm: Enable security on new TX API
Install GTKs on AP side for new TX API.
Don't add IV space, it's added by the HW.

While at that fix GCMP abnd GCMP-256 GTK installation
which work similarly to the new TX API.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Liad Kaufman f45f979dc2 iwlwifi: mvm: disable dbg data collect when fw isn't alive
If FW isn't alive, trying to collect debug data will
result in errors both in driver and in the collected
data, so just warn and leave the collecting function
in this case.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Johannes Berg 0ec971fdad iwlwifi: remove resp_pkt NULL checks
Contrary to what some of the comments say, if rfkill was
asserted the transport will return -ERFKILL instead of
success, if CMD_WANT_SKB was set, so it's not necessary
to check cmd.resp_pkt for being NULL if the return code
was success.

Validate that this is true in iwl_trans_send_cmd().

Most of the other code modifications were done with the
following spatch:
    @@
    struct iwl_host_cmd cmd;
    identifier pkt;
    @@
    <...
    (
    pkt = cmd.resp_pkt;
    ...
    -if (!pkt) { ... }
    |
    pkt = cmd.resp_pkt;
    ...
    -if (WARN_ON(!pkt)) { ... }
    |
    -if (!cmd.resp_pkt) { ... }
    )
    ...>

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Liad Kaufman 664e968be3 iwlwifi: mvm: remove txq EMPTYING_DELBA state for DQA
In DQA mode, there is no need to wait for the TXQ to
clear out after getting a DELBA, since traffic can
continue running on the queue.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Kalle Valo 52f8c9380f Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.13. Major changes:

wil6210

* add low level RF sector interface via nl80211 vendor commands

* add module parameter ftm_mode to load separate firmware for factory
  testing

* support devices with different PCIe bar size

* add support for PCIe D3hot in system suspend

* remove ioctl interface which should not be in a wireless driver

ath10k

* go back to using dma_alloc_coherent() for firmware scratch memory

* add per chain RSSI reporting
2017-06-22 16:29:52 +03:00
David S. Miller 3d09198243 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two entries being added at the same time to the IFLA
policy table, whilst parallel bug fixes to decnet
routing dst handling overlapping with the dst gc removal
in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21 17:35:22 -04:00
Michał Mirosław 3f426c9689 brcmfmac: initialize oob irq data before request_irq()
This fixes spin-forever in irq handler when IRQ is already asserted
at request_irq() time.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:30:59 +03:00
Ping-Ke Shih 42213f2f35 rtlwifi: btcoexist control to enter/leave LPS
To yield better user experience, have btcoex control LPS's parameters.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:07 +03:00
Ping-Ke Shih c692205da1 rtlwifi: add btc_is_bt_lps_on() for btcoexist
If LPS is controlled by btcoex, this function tell driver LPS is on or off.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:06 +03:00
Ping-Ke Shih 2635664e6e rtlwifi: Add rx ampdu cfg for btcoexist.
If RX ampdu is too long, BT will have less time.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:06 +03:00
Ping-Ke Shih 54685f9c7a rtlwifi: Add btcoex record_pwr_mode
Add btcoex record pwr mode to control LPS's parameters and share time
with BT.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:05 +03:00
Ping-Ke Shih 5b757ba757 rtlwifi: Revise special packet notification to be readable format.
We extend types of special packets to a enumeration from boolean value.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:05 +03:00
Ping-Ke Shih 8479580b52 rtlwifi: Add TX report and disable key to force wait until report acked.
When using EAPOL to do a PTK rekey, there is a possible race condition.
When msg 3/4 is received, the supplicant will send msg 4/4 and install
the new key immediately; however, the driver must make sure that msg 4/4
is sent before installing the new key. We use TX report to ensure it is
sent.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:03 +03:00
Ping-Ke Shih 79b64ed7a6 rtlwifi: extend debug_comp to u64
The number of debugging conditions now exceeds the capabilities of a
32-bit word.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:02 +03:00
Ping-Ke Shih e332e2a294 rtlwifi: Correct power save capability while init mac80211
Since the driver itself will enter power saving mode dynamically
according to the traffic, we set hw capability SUPPORTS_PS and
SUPPORTS_DYNAMIC_PS in case of fwctrl_lps.

The process IEEE80211_CONF_CHANGE_PS in op_config is used by
SW-LPS only, so we add constraints to avoid errors.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: vincent_fann <vincent_fann@realtek.com>
Signed-off-by: shaofu <shaofu@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:01 +03:00
Ping-Ke Shih f95d95a7cd rtlwifi: btcoex: rtl8723be: fix ant_sel not work
To make ant_sel work, we should call power_on_setting to set antenna
correctly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:28:00 +03:00
Ping-Ke Shih 43f5644a90 rtlwifi: btcoex: set correct interface type and parameter.
This commit fixies two problems. The first one is interface types
(e.g. PCI) that are used to switch antenna, and the second is to add
wifi_only parameter to give correct state.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:27:58 +03:00
Ping-Ke Shih 87d8a9f352 rtlwifi: btcoex: call bind to setup btcoex
New btcoex add a function 'bind' to connect adapter, so we should call
it during initializing.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:27:58 +03:00
Prameela Rani Garnepudi 9920322ccd rsi: add tx frame for common device configuration
After successful loading of firmware, a CARD READY indication is
received by host. Common device configuration parameters are sent
to the device after this. It includes information like device
operating mode (Wi-Fi alone or BT coex), power save related
parameters, GPIO information etc. As device supports BT coex,
this frame is send in COEX queue initially. Based on the operating
mode, CARD READY indication is received from each protocol module
in firmware i.e. WLAN, BT.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:27 +03:00
Prameela Rani Garnepudi 1b1bed0165 rsi: configure new boot parameters to device
Boot parameters are changed in new firmware. Also three
new sdio sleep parameters are added for ultra low power
save.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:26 +03:00
Prameela Rani Garnepudi 61f2a6fcaa rsi: receive path enhancement for RS9113
RS9113 chipset supports Coex feature. Initial frame exchanges during
device initialization happens on coex queue. This patch adds the
handling for coex queue.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:26 +03:00
Prameela Rani Garnepudi 015e367494 rsi: Register interrupt handler before firmware load
Before firmware load, sometimes false interrupts are received.
System hang is observed if interrupt handler is not registered
to receive these interrupts. Hence interrupt handler registration
is moved before firmware load. We will drop these false interrupts
as these are not from the device.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:25 +03:00
Amitkumar Karwar 4833c953fd rsi: use enum for FSM states
Currently macros are used for FSM states. We will replace
it with enum so that new state can be added easily without
worrying about macro value.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:25 +03:00
Prameela Rani Garnepudi d2d1831723 rsi: add usb RS9113 chipset support
usb device id and vendor id for RS9113 chipset are included.
So it can be used through usb interface.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:26:24 +03:00
Shawn Lin 7c26029f87 mwifiex: debugfs: remove redunant check of mwifiex_dfs_dir
debugfs_remove already check mwifiex_dfs_dir, so remove it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:25:47 +03:00
Caesar Wang 421ba82c67 mwifiex: fixes the unexpected be printed log by default
This patch uses WARN level is not printed by default.

In some cases, some boards have always met the unused log be printed as
follows.
...
[23193.523182] mwifiex_pcie 0000:01:00.0: mwifiex_get_cfp:
cannot find cfp by band 2    & channel=13 freq=0
[23378.633684] mwifiex_pcie 0000:01:00.0: mwifiex_get_cfp:
cannot find cfp by band 2    & channel=13 freq=0

Due to we used the wifi default area was US and didn't support 12~14
channels. As Frequencies:
* 2412 MHz [1] (30.0 dBm)
* 2417 MHz [2] (30.0 dBm)
* 2422 MHz [3] (30.0 dBm)
* 2427 MHz [4] (30.0 dBm)
* 2432 MHz [5] (30.0 dBm)
* 2437 MHz [6] (30.0 dBm)
* 2442 MHz [7] (30.0 dBm)
* 2447 MHz [8] (30.0 dBm)
* 2452 MHz [9] (30.0 dBm)
* 2457 MHz [10] (30.0 dBm)
* 2462 MHz [11] (30.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)

Also, as the commit 1b499cb72f
("mwifiex: disable channel filtering feature in firmware"), it proved to
be a feature to get better scan result from overlapping channel.

Even there could be AP from overlapping channel (might be 12/13/14
in this case), it will be filtered depend on reg domain rules.
e.g:
...
if (ch->flags & IEEE80211_CHAN_DISABLED)
        continue;

So it should not been an ERROR, use the WARN level to instead it for now.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:24:50 +03:00
Kevin Lo 9da96c5e7e rtlwifi: fix REG_USTIME_TSF register definition
The REG_USTIME_TSF (US Time Tuning for TSF) definition of Realtek chips
should be 0x55C.

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:23:43 +03:00
Hans de Goede 1278bd1498 brcmfmac: Use separate firmware for revision 0 of the brcm43430 chip
The brcm43430 chip needs different firmware files for chip revision 0
and 1. The file currently in linux-firmware is for revision 1 only.

This commit makes brcmfmac request brcmfmac43430a0-sdio.bin instead
of brcmfmac43430-sdio.bin for revision 0 chips.

Note that the behavior for revision 1 chips is not changed, ideally those
would load brcmfmac43430a1-sdio.bin, but that will break existing setups.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21 18:20:57 +03:00
Maya Erez a520b49ec1 wil6210: remove ioctl interface
Wireless drivers should not be using ioctl interface,
hence remove this interface for wil6210 driver.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:18:51 +03:00
Maya Erez fe9ee51e6a wil6210: add support for PCIe D3hot in system suspend
In order to preserve the connection in suspend/resume flow,
wil6210 host allows going to PCIe D3hot state in suspend,
instead of performing a full wil6210 device reset. This
requires the platform ability to initiate wakeup in case of
RX data. To check that, a new platform API is added.
In addition, add cfg80211 suspend/resume callbacks
implementation.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:18:47 +03:00
Dedy Lansky 5b49ee9f13 wil6210: prevent platform callbacks after uninit
After calling platform_ops.uninit() it is still possible to invoke
platform callbacks.
To prevent this, zero platform_ops right after invoking uninit.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:18:42 +03:00
Sven Eckelmann 6824834946 ath10k: set rxnss_override for QCA9888
QCA9888 supports VHT80 with 2x2. But it only support 1x1 with VHT160 or
VHT80+80. Inform userspace and the the QCA firmware about that limitation
whenever VHT80+80 or VHT160 is configured.

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
[kvalo@qca.qualcomm.com: use hw_params]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:17:27 +03:00
Ben Greear cc914a5500 ath10k: configure rxnss_override for QCA9984
QCA9984 hardware can do 4x4 at 80Mhz, but only 2x2 at 160Mhz.

First, report this to user-space by setting the max-tx-speed
and max-rx-speed vht capabilities.

Second, if the peer rx-speed is configured, and if we
are in 160 or 80+80 mode, and the peer rx-speed matches
the max speed for 2x2 or 1x1 at 160Mhz (long guard interval),
then use that info to set the peer_bw_rxnss_override appropriately.

Without this, a 9984 firmware will not use 2x2 ratesets when
transmitting to peer (it will be stuck at 1x1), because
the firmware would not have configured the rxnss_override.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[sven.eckelmann@openmesh.com: rebase, cleanup, drop 160Mhz workaround cleanup]
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
[kvalo@qca.qualcomm.com: use hw_params, rename the title]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:17:21 +03:00
Ben Greear e509e59477 ath10k: use complete VHT chan width for 160MHz workaround
The ath10k firmware doesn't announce its VHT channel width capabilities in
the vht_cap information from the "service ready event" arguments. The
driver must therefore check whether the 160MHz short GI bit is set and
whether the driver still doesn't set the bits for the 160/80+80 MHz
capabilities.

The two bits for the channel width are a two bit integer and not two
separate bits which cannot be parsed without the knowledge of the other
bit. Using IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ (b10..) as a
mask for this task doesn't make any sense. The correct mask for the VHT
channel width should be used instead to make this check more readable.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[sven.eckelmann@openmesh.com: separate 160Mhz workaround cleanup, add commit
 message]
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-21 16:17:16 +03:00
David S. Miller afd64631f8 wireless-drivers fixes for 4.12
Two important fixes for brcmfmac. The rest of the brcmfmac patches are
 either code preparation and fixing a new build warning.
 
 brcmfmac
 
 * fix a NULL pointer dereference during resume
 
 * fix a NULL pointer dereference with USB devices, a regression from
   v4.12-rc1
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJZSSOQAAoJEG4XJFUm622browIAKdoXRzDj9t/r1s9UY+Fvm2w
 YLiVCEy3Z/enF2iQcdmBC+uHNeaVWGctvjljxWwL6UsWx+Dl0/Dxcfilnan7SrYI
 x5ysh+K4vfQ3oOf314vRuw+7u/h1WgobxdD9dgv7+C8yA7AIgHJlzZeM6PYdhibE
 cEw/BOKDMDQ9NDnTJmaUmUogB/92TP3f5ACrNBe11kyPBtHuYFhNzee3PJQ3xP3I
 D2knpUD3LtHhPDRC7ku9tpsmBpGHbOwGPHkLW1i9YhjHPe5ecmfvXtc7o/yUlLZK
 f+xOMNuktUwsTjV0qhRnwx6Z2uJS1LlCmqVncaZIn7f+BYhORmTYIo45x628FGg=
 =D6GF
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-for-davem-2017-06-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.12

Two important fixes for brcmfmac. The rest of the brcmfmac patches are
either code preparation and fixing a new build warning.

brcmfmac

* fix a NULL pointer dereference during resume

* fix a NULL pointer dereference with USB devices, a regression from
  v4.12-rc1
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20 15:41:56 -04:00
yuan linyu b952f4dff2 net: manual clean code which call skb_put_[data:zero]
Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20 13:30:15 -04:00