Commit Graph

1734 Commits

Author SHA1 Message Date
Wen Gong
828853ac58 ath10k: add waiting htt tx complete before wow enable
If there are some tx packets pending in firmware, and then system
enters suspend, firmware will fail for wow enable. This will trigger
mac80211 to stop ath10k and download firmware again, then it is
non-wow suspend.

After add the waiting htt tx complete, then firmware will have some
time window to send or flush the pending tx packets.

Tested with QCA6174 PCI with firmware
WLAN.RM.4.4.1-00109-QCARMSWPZ-1, but this will also affect QCA9377 PCI.
It's not a regression with new firmware releases.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:57:03 +03:00
Brian Norris
9d5804662c ath10k: retrieve MAC address from system firmware if provided
Devices may provide their own MAC address via system firmware (e.g.,
device tree), especially in the case where the device doesn't have a
useful EEPROM on which to store its MAC address (e.g., for integrated
Wifi).

Use the generic device helper to retrieve the MAC address, and (if
present) honor it above the MAC address advertised by the card.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:53:18 +03:00
Sven Eckelmann
34d5629d2c ath10k: limit available channels via DT ieee80211-freq-limit
Tri-band devices (1x 2.4GHz + 2x 5GHz) often incorporate special filters in
the RX and TX path. These filtered channel can in theory still be used by
the hardware but the signal strength is reduced so much that it makes no
sense.

There is already a DT property to limit the available channels but ath10k
has to manually call this functionality to limit the currrently set wiphy
channels further.

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-28 16:50:36 +03:00
Gustavo A. R. Silva
06ae8dc004 ath10k: use struct_size() in kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
	int stuff;
        void *entry[];
};

instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-28 16:42:54 +03:00
Martin Willi
a9911937e7 ath10k: schedule hardware restart if WMI command times out
When running in AP mode, ath10k sometimes suffers from TX credit
starvation. The issue is hard to reproduce and shows up once in a
few days, but has been repeatedly seen with QCA9882 and a large
range of firmwares, including 10.2.4.70.67.

Once the module is in this state, TX credits are never replenished,
which results in "SWBA overrun" errors, as no beacons can be sent.
Even worse, WMI commands run in a timeout while holding the conf
mutex for three seconds each, making any further operations slow
and the whole system unresponsive.

The firmware/driver never recovers from that state automatically,
and triggering TX flush or warm restarts won't work over WMI. So
issue a hardware restart if a WMI command times out due to missing
TX credits. This implies a connectivity outage of about 1.4s in AP
mode, but brings back the interface and the whole system to a usable
state. WMI command timeouts have not been seen in absent of this
specific issue, so taking such drastic actions seems legitimate.

Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-28 16:41:53 +03:00
Rakesh Pillai
58da3b4230 ath10k: skip resetting rx filter for WCN3990
WCN3990 has the MAC_PCU_ADDR1 configured properly
and hence it will not send spurious ack frames
during boot up.

Hence the reset_rx_filter workaround is not needed
for WCN3990. Add a hw_param to indicate if hardware rx
filter reset is needed and skip the reset_rx_filter for
WCN3990.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-28 16:40:36 +03:00
Tamizh chelvam
bd1d395070 ath10k: fix kernel panic by moving pci flush after napi_disable
When continuously running wifi up/down sequence, the napi poll
can be scheduled after the CE buffers being freed by ath10k_pci_flush

Steps:
  In a certain condition, during wifi down below scenario might occur.

ath10k_stop->ath10k_hif_stop->napi_schedule->ath10k_pci_flush->napi_poll(napi_synchronize).

In the above scenario, CE buffer entries will be freed up and become NULL in
ath10k_pci_flush. And the napi_poll has been invoked after the flush process
and it will try to get the skb from the CE buffer entry and perform some action on that.
Since the CE buffer already cleaned by pci flush this action will create NULL
pointer dereference and trigger below kernel panic.

Unable to handle kernel NULL pointer dereference at virtual address 0000005c
PC is at ath10k_pci_htt_rx_cb+0x64/0x3ec [ath10k_pci]
ath10k_pci_htt_rx_cb [ath10k_pci]
ath10k_ce_per_engine_service+0x74/0xc4 [ath10k_pci]
ath10k_ce_per_engine_service [ath10k_pci]
ath10k_ce_per_engine_service_any+0x74/0x80 [ath10k_pci]
ath10k_ce_per_engine_service_any [ath10k_pci]
ath10k_pci_napi_poll+0x48/0xec [ath10k_pci]
ath10k_pci_napi_poll [ath10k_pci]
net_rx_action+0xac/0x160
net_rx_action
__do_softirq+0xdc/0x208
__do_softirq
irq_exit+0x84/0xe0
irq_exit
__handle_domain_irq+0x80/0xa0
__handle_domain_irq
gic_handle_irq+0x38/0x5c
gic_handle_irq
__irq_usr+0x44/0x60

Tested on QCA4019 and firmware version 10.4.3.2.1.1-00010

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-24 14:41:50 +03:00
Sven Eckelmann
3f25911158 ath10k: prevent active scans on potential unusable channels
The QCA4019 hw1.0 firmware 10.4-3.2.1-00050 and 10.4-3.5.3-00053 (and most
likely all other) seem to ignore the WMI_CHAN_FLAG_DFS flag during the
scan. This results in transmission (probe requests) on channels which are
not "available" for transmissions.

Since the firmware is closed source and nothing can be done from our side
to fix the problem in it, the driver has to work around this problem. The
WMI_CHAN_FLAG_PASSIVE seems to be interpreted by the firmware to not
scan actively on a channel unless an AP was detected on it. Simple probe
requests will then be transmitted by the STA on the channel.

ath10k must therefore also use this flag when it queues a radar channel for
scanning. This should reduce the chance of an active scan when the channel
might be "unusable" for transmissions.

Fixes: e8a50f8ba4 ("ath10k: introduce DFS implementation")
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-31 10:47:32 +03:00
Kalle Valo
ebfac1d0c1 ath10k: fix parenthesis alignment
These were recently introduced and found by checkpatch:

drivers/net/wireless/ath/ath10k/mac.c:6118: Alignment should match open parenthesis
drivers/net/wireless/ath/ath10k/mac.c:6121: Alignment should match open parenthesis
drivers/net/wireless/ath/ath10k/mac.c:6124: Alignment should match open parenthesis

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-31 10:41:55 +03:00
Maharaja Kennadyrajan
db251d7df4 ath10k: add debugfs file warm_hw_reset
Debugfs support to do hardware warm reset with WMI command
WMI_PDEV_PARAM_PDEV_RESET for 10.4 and 10.2.4(if wmi
service is enabled in the firmware for backward compatibility).

This change is purely for debugging purpose when hardware hangs/mutes.

This hardware reset won't affect the connectivity but there will be small
pause in data traffic. Here we are doing BB/MAC level reset and hence
whenever the BB/MAC watchdog is triggered, it does a hardware_chip_reset.
So the target will be in the active state.

Below command used to warm reset the hardware.
echo 1 > /sys/kernel/debug/ieee80211/phyX/ath10k/warm_hw_reset

Tested in QCA988X with firmware ver 10.2.4.70.45
Tested in QCA4019 with firmware ver 10.4-3.2.1.1-00011

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:59:32 +03:00
Nicholas Mc Guire
e82f57c8b9 ath10k: htt_tx: move lock into id_get function
This is only code refactoring as all call sites of
ath10k_htt_tx_alloc_msdu_id() take the same lock it can be moved into the
id_get function and the assertion dropped.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:58:44 +03:00
Colin Ian King
e6712aa124 ath10k: remove redundant pointers 'dev' and 'noa'
Pointers dev and noa are being assigned but are never used hence they
are redundant and can be removed.

Cleans up clang warnings:
warning: variable 'dev' set but not used [-Wunused-but-set-variable]
warning: variable 'noa' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:54:05 +03:00
Rakesh Pillai
dc405152bb ath10k: handle mgmt tx completion event
WCN3990 transmits management frames via WMI
with reference. Currently, with the management
tx completion not being handled, these frames are
not getting freed even after the transmission status
is returned by the firmware.

The transmitted management frames should be freed
when the firmware sends the over-the-air tx status of
the corresponding management frames.

Handle the wmi mgmt tx completion event and free
the corresponding management frame.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:51:47 +03:00
Surabhi Vishnoi
673bc519c5 ath10k: disable bundle mgmt tx completion event support
The tx completion of multiple mgmt frames can be bundled
in a single event and sent by the firmware to host, if this
capability is not disabled explicitly by the host. If the host
cannot handle the bundled mgmt tx completion, this capability
support needs to be disabled in the wmi init cmd, sent to the firmware.

Add the host capability indication flag in the wmi ready command,
to let firmware know the features supported by the host driver.
This field is ignored if it is not supported by firmware.

Set the host capability indication flag(i.e. host_capab) to zero,
for disabling the support of bundle mgmt tx completion. This will
indicate the firmware to send completion event for every mgmt tx
completion, instead of bundling them together and sending in a single
event.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:51:38 +03:00
Pradeep Kumar Chitrapu
cd93b83ad9 ath10k: support for multicast rate control
Issues a wmi command to firmware when multicast rate change is received with the
new BSS_CHANGED_MCAST_RATE flag.  Also fixes the incorrect fixed_rate setting
for CCK rates which got introduced with addition of ath10k_rates_rev2 enum.

Tested on QCA9984 with firmware ver 10.4-3.6-00104

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:46:50 +03:00
Kalle Valo
1e3c43a7f1 ath10k: fix open brace location in ath10k_wmi_tlv_op_gen_dbglog_cfg()
Fixes a recently added checkpatch warning:

wmi-tlv.c:2703: open brace '{' following function definitions go on the next line

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 20:45:22 +03:00
Kalle Valo
bf9b608e63 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.19. Major changes:

wcn36xx

* fix WEP in client mode

wil6210

* add support for Talyn-MB (Talyn ver 2.0) device

* add support for enhanced DMA firmware feature
2018-07-25 10:50:54 +03:00
David S. Miller
a527d3f728 wireless-drivers-next patches for 4.19
The first set of patches for 4.19. Only smaller features and bug
 fixes, not really anything major. Also included are changes to
 include/linux/bitfield.h, we agreed with Johannes that it makes sense
 to apply them via wireless-drivers-next.
 
 Major changes:
 
 ath10k
 
 * support channel 173
 
 * fix spectral scan for QCA9984 and QCA9888 chipsets
 
 ath6kl
 
 * add support for Dell Wireless 1537
 
 ti wlcore
 
 * add support for runtime PM
 
 * enable runtime PM autosuspend support
 
 qtnfmac
 
 * support changing MAC address
 
 * enable source MAC address randomization support
 
 libertas
 
 * fix suspend and resume for SDIO cards
 
 mt76
 
 * add software DFS radar pattern detector for mt76x2 based devices
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Merge tag 'wireless-drivers-next-for-davem-2018-07-23' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.19

The first set of patches for 4.19. Only smaller features and bug
fixes, not really anything major. Also included are changes to
include/linux/bitfield.h, we agreed with Johannes that it makes sense
to apply them via wireless-drivers-next.

Major changes:

ath10k

* support channel 173

* fix spectral scan for QCA9984 and QCA9888 chipsets

ath6kl

* add support for Dell Wireless 1537

ti wlcore

* add support for runtime PM

* enable runtime PM autosuspend support

qtnfmac

* support changing MAC address

* enable source MAC address randomization support

libertas

* fix suspend and resume for SDIO cards

mt76

* add software DFS radar pattern detector for mt76x2 based devices
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-23 21:30:03 -07:00
Alagu Sankar
8530b4e7b2 ath10k: sdio: set skb len for all rx packets
Without this, packets larger than 1500 will silently be dropped.
Easily reproduced by sending a ping packet with a size larger
than 1500.

Co-Developed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Alagu Sankar <alagusankar@silex-india.com>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-02 17:21:46 +03:00
Alagu Sankar
d1d061b139 ath10k: sdio: allocate correct size for RECV_1MORE_BLOCK rx packets
Without this, when receiving a packet that has this flag set
from firmware, we will read invalid trailer data from the packet,
which will be shown as various errors, e.g. "sdio mbox lookahead
is zero" or "invalid rx packet" or "payload length x exceeds max
htc length".

Co-Developed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Alagu Sankar <alagusankar@silex-india.com>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-02 17:21:37 +03:00
Alagu Sankar
679e1f07c8 ath10k: sdio: use same endpoint id for all packets in a bundle
All packets in a bundle should use the same endpoint id as the
first lookahead.

This matches how things are done is ath6kl, however,
this patch can theoretically handle several bundles
in ath10k_sdio_mbox_rx_process_packets().

Without this patch we get lots of errors about invalid endpoint id:

ath10k_sdio mmc2:0001:1: invalid endpoint in look-ahead: 224
ath10k_sdio mmc2:0001:1: failed to get pending recv messages: -12
ath10k_sdio mmc2:0001:1: failed to process pending SDIO interrupts: -12

Co-Developed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Alagu Sankar <alagusankar@silex-india.com>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-02 17:21:22 +03:00
Bob Copeland
62652555c6 ath10k: use locked skb_dequeue for rx completions
In our environment we are occasionally seeing the following stack trace
in ath10k:

Unable to handle kernel paging request at virtual address 0000a800
pgd = c0204000
[0000a800] *pgd=00000000
Internal error: Oops: 17 [#1] SMP ARM
Modules linked in: dwc3 dwc3_of_simple phy_qcom_dwc3 nf_nat xt_connmark
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.31 #2
Hardware name: Generic DT based system
task: c09f4f40 task.stack: c09ee000
PC is at kfree_skb_list+0x1c/0x2c
LR is at skb_release_data+0x6c/0x108
pc : [<c065dcc4>]    lr : [<c065da5c>]    psr: 200f0113
sp : c09efb68  ip : c09efb80  fp : c09efb7c
r10: 00000000  r9 : 00000000  r8 : 043fddd1
r7 : bf15d160  r6 : 00000000  r5 : d4ca2f00  r4 : ca7c6480
r3 : 000000a0  r2 : 01000000  r1 : c0a57470  r0 : 0000a800
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 10c5787d  Table: 56e6006a  DAC: 00000051
Process swapper/0 (pid: 0, stack limit = 0xc09ee210)
Stack: (0xc09efb68 to 0xc09f0000)
fb60:                   ca7c6480 d4ca2f00 c09efb9c c09efb80 c065da5c c065dcb4
fb80: d4ca2f00 00000000 dcbf8400 bf15d160 c09efbb4 c09efba0 c065db28 c065d9fc
fba0: d4ca2f00 00000000 c09efbcc c09efbb8 c065db48 c065db04 d4ca2f00 00000000
fbc0: c09efbe4 c09efbd0 c065ddd0 c065db38 d4ca2f00 00000000 c09efc64 c09efbe8
fbe0: bf09bd00 c065dd10 00000003 7fffffff c09efc24 dcbfc9c0 01200000 00000000
fc00: 00000000 00000000 ddb7e440 c09e9440 c09efc48 1d195000 c09efc7c c09efc28
fc20: c027bb68 c028aa00 ddb7e4f8 bf13231c ddb7e454 0004091f bf154571 d4ca2f00
fc40: dcbf8d00 ca7c5df6 bf154538 01200000 00000000 bf154538 c09efd1c c09efc68
fc60: bf132458 bf09bbbc ca7c5dec 00000041 bf154538 bf154539 000007bf bf154545
fc80: bf154538 bf154538 bf154538 bf154538 bf154538 00000000 00000000 000016c1
fca0: 00000001 c09efcb0 01200000 00000000 00000000 00000000 00000000 00000001
fcc0: bf154539 00000041 00000000 00000007 00000000 000000d0 ffffffff 3160ffff
fce0: 9ad93e97 3e973160 7bf09ad9 0004091f d4ca2f00 c09efdb0 dcbf94e8 00000000
fd00: dcbf8d00 01200000 00000000 dcbf8d00 c09efd44 c09efd20 bf132544 bf132130
fd20: dcbf8d00 00000000 d4ca2f00 c09efdb0 00000001 d4ca2f00 c09efdec c09efd48
fd40: bf133630 bf1324d0 ca7c5cc0 000007c0 c09efd88 c09efd70 c0764230 c02277d8
fd60: 200f0113 ffffffff dcbf94c8 bf000000 dcbf93b0 dcbf8d00 00000040 dcbf945c
fd80: dcbf94e8 00000000 c09efdcc 00000000 c09efd90 c09efd90 00000000 00000024
fda0: dcbf8d00 00000000 00000005 dcbf8d00 c09efdb0 c09efdb0 00000000 00000040
fdc0: c09efdec dcbf8d00 dcbfc9c0 c09ed140 00000040 00000000 00000100 00000040
fde0: c09efe14 c09efdf0 bf1739b4 bf132840 dcbfc9c0 ddb82140 c09ed140 1d195000
fe00: 00000001 00000100 c09efe64 c09efe18 c067136c bf173958 ddb7fac8 c09f0d00
fe20: 001df678 0000012c c09efe28 c09efe28 c09efe30 c09efe30 c0a7fb28 ffffe000
fe40: c09f008c 00000003 00000008 c0a598c0 00000100 c09f0080 c09efeb4 c09efe68
fe60: c02096e0 c0671278 c0494584 00000080 dd5c3300 c09f0d00 00000004 001df677
fe80: 0000000a 00200100 dd5c3300 00000000 00000000 c09eaa70 00000060 dd410800
fea0: c09ee000 00000000 c09efecc c09efeb8 c0227944 c02094c4 00000000 00000000
fec0: c09efef4 c09efed0 c0268b64 c02278ac de802000 c09f1b1c c09eff20 c0a16cc0
fee0: de803000 c09ee000 c09eff1c c09efef8 c020947c c0268ae0 c02103dc 600f0013
ff00: ffffffff c09eff54 ffffe000 c09ee000 c09eff7c c09eff20 c021448c c0209424
ff20: 00000001 00000000 00000000 c021ddc0 00000000 00000000 c09f1024 00000001
ff40: ffffe000 c09f1078 00000000 c09eff7c c09eff80 c09eff70 c02103ec c02103dc
ff60: 600f0013 ffffffff 00000051 00000000 c09eff8c c09eff80 c0763cc4 c02103bc
ff80: c09effa4 c09eff90 c025f0e4 c0763c98 c0a59040 c09f1000 c09effb4 c09effa8
ffa0: c075efe0 c025efd4 c09efff4 c09effb8 c097dcac c075ef7c ffffffff ffffffff
ffc0: 00000000 c097d6c4 00000000 c09c1a28 c0a59294 c09f101c c09c1a24 c09f61c0
ffe0: 4220406a 512f04d0 00000000 c09efff8 4220807c c097d95c 00000000 00000000
[<c065dcc4>] (kfree_skb_list) from [<c065da5c>] (skb_release_data+0x6c/0x108)
[<c065da5c>] (skb_release_data) from [<c065db28>] (skb_release_all+0x30/0x34)
[<c065db28>] (skb_release_all) from [<c065db48>] (__kfree_skb+0x1c/0x9c)
[<c065db48>] (__kfree_skb) from [<c065ddd0>] (consume_skb+0xcc/0xd8)
[<c065ddd0>] (consume_skb) from [<bf09bd00>] (ieee80211_rx_napi+0x150/0x82c [mac80211])
[<bf09bd00>] (ieee80211_rx_napi [mac80211]) from [<bf132458>] (ath10k_htt_t2h_msg_handler+0x15e8/0x19c4 [ath10k_core])
[<bf132458>] (ath10k_htt_t2h_msg_handler [ath10k_core]) from [<bf132544>] (ath10k_htt_t2h_msg_handler+0x16d4/0x19c4 [ath10k_core])
[<bf132544>] (ath10k_htt_t2h_msg_handler [ath10k_core]) from [<bf133630>] (ath10k_htt_txrx_compl_task+0xdfc/0x12cc [ath10k_core])
[<bf133630>] (ath10k_htt_txrx_compl_task [ath10k_core]) from [<bf1739b4>] (ath10k_pci_napi_poll+0x68/0xf4 [ath10k_pci])
[<bf1739b4>] (ath10k_pci_napi_poll [ath10k_pci]) from [<c067136c>] (net_rx_action+0x100/0x33c)
[<c067136c>] (net_rx_action) from [<c02096e0>] (__do_softirq+0x228/0x31c)
[<c02096e0>] (__do_softirq) from [<c0227944>] (irq_exit+0xa4/0x114)

The trace points to a corrupt skb inside kfree_skb(), seemingly because
one of the shared skb queues is getting corrupted.  Most of the skb queues
ath10k uses are local to a single call stack, but three are shared among
multiple codepaths:

 - rx_msdus_q,
 - rx_in_ord_compl_q, and
 - tx_fetch_ind_q

Of the three, the first two are manipulated using the unlocked skb_queue
functions without any additional lock protecting them.  Use the locked
variants of skb_queue_* functions to protect these manipulations.

Signed-off-by: Bob Copeland <bobcopeland@fb.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-29 14:56:58 +03:00
Erik Stromdahl
e4568eac04 ath10k: replace hardcoded constant with define
The hardcoded values used in ath10k_mac_tx_push_pending and
ath10k_mac_op_wake_tx_queue set an upper limit of how many packets that
can be consumed from the TX queue.

HTC_HOST_MAX_MSG_PER_TX_BUNDLE is a proper name for this constant, as
the value effectively limits the number of messages that can be consumed
in one step. Thus, the value is an upper limit of the number of messages
that can be added to a TX message bundle.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:56:17 +03:00
Erik Stromdahl
ab687de953 ath10k: rename HTC_HOST_MAX_MSG_PER_BUNDLE define
This define is only used for RX bundling so it is more descriptive if
RX is added to the define-name.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:56:05 +03:00
Erik Stromdahl
d1a566bec5 ath10k: fix bug in masking of TID value
Although the TID mask is 0xf, the modulus operation does still not
produce identical results as the bitwise and operator. If the TID is 15, the
modulus operation will "convert" it to 0, whereas the bitwise and will keep it
as 15.

This was found during code review.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:53:15 +03:00
Ben Greear
168f75f11f ath10k: protect ath10k_htt_rx_ring_free with rx_ring.lock
While debugging driver crashes related to a buggy firmware
crashing under load, I noticed that ath10k_htt_rx_ring_free
could be called without being under lock.  I'm not sure if this
is the root cause of the crash or not, but it seems prudent to
protect it.

Originally tested on 4.16+ kernel with ath10k-ct 10.4 firmware
running on 9984 NIC.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:49:04 +03:00
Niklas Cassel
3f04950f32 ath10k: transmit queued frames after processing rx packets
When running iperf on ath10k SDIO, TX can stop working:

iperf -c 192.168.1.1 -i 1 -t 20 -w 10K
[  3]  0.0- 1.0 sec  2.00 MBytes  16.8 Mbits/sec
[  3]  1.0- 2.0 sec  3.12 MBytes  26.2 Mbits/sec
[  3]  2.0- 3.0 sec  3.25 MBytes  27.3 Mbits/sec
[  3]  3.0- 4.0 sec   655 KBytes  5.36 Mbits/sec
[  3]  4.0- 5.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  5.0- 6.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  6.0- 7.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  7.0- 8.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  8.0- 9.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  9.0-10.0 sec  0.00 Bytes  0.00 bits/sec
[  3]  0.0-10.3 sec  9.01 MBytes  7.32 Mbits/sec

There are frames in the ieee80211_txq and there are frames that have
been removed from from this queue, but haven't yet been sent on the wire
(num_pending_tx).

When num_pending_tx reaches max_num_pending_tx, we will stop the queues
by calling ieee80211_stop_queues().

As frames that have previously been sent for transmission
(num_pending_tx) are completed, we will decrease num_pending_tx and wake
the queues by calling ieee80211_wake_queue(). ieee80211_wake_queue()
does not call wake_tx_queue, so we might still have frames in the
queue at this point.

While the queues were stopped, the socket buffer might have filled up,
and in order for user space to write more, we need to free the frames
in the queue, since they are accounted to the socket. In order to free
them, we first need to transmit them.

This problem cannot be reproduced on low-latency devices, e.g. pci,
since they call ath10k_mac_tx_push_pending() from
ath10k_htt_txrx_compl_task(). ath10k_htt_txrx_compl_task() is not called
on high-latency devices.
Fix the problem by calling ath10k_mac_tx_push_pending(), after
processing rx packets, just like for low-latency devices, also in the
SDIO case. Since we are calling ath10k_mac_tx_push_pending() directly,
we also need to export it.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:44:21 +03:00
Zhi Chen
98dc04ba60 ath10k: fix tlv 5ghz channel missing issue
The 5ghz channel parameters of TLV target wasn't passed to host, it caused
host can only use lower channels from 36 to 64.

Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:37:59 +03:00
Zhi Chen
c829198880 ath10k: fix scan crash due to incorrect length calculation
Length of WMI scan message was not calculated correctly. The allocated
buffer was smaller than what we expected. So WMI message corrupted
skb_info, which is at the end of skb->data. This fix takes TLV header
into account even if the element is zero-length.

Crash log:
  [49.629986] Unhandled kernel unaligned access[#1]:
  [49.634932] CPU: 0 PID: 1176 Comm: logd Not tainted 4.4.60 #180
  [49.641040] task: 83051460 ti: 8329c000 task.ti: 8329c000
  [49.646608] $ 0   : 00000000 00000001 80984a80 00000000
  [49.652038] $ 4   : 45259e89 8046d484 8046df30 8024ba70
  [49.657468] $ 8   : 00000000 804cc4c0 00000001 20306320
  [49.662898] $12   : 33322037 000110f2 00000000 31203930
  [49.668327] $16   : 82792b40 80984a80 00000001 804207fc
  [49.673757] $20   : 00000000 0000012c 00000040 80470000
  [49.679186] $24   : 00000000 8024af7c
  [49.684617] $28   : 8329c000 8329db88 00000001 802c58d0
  [49.690046] Hi    : 00000000
  [49.693022] Lo    : 453c0000
  [49.696013] epc   : 800efae4 put_page+0x0/0x58
  [49.700615] ra    : 802c58d0 skb_release_data+0x148/0x1d4
  [49.706184] Status: 1000fc03 KERNEL EXL IE
  [49.710531] Cause : 00800010 (ExcCode 04)
  [49.714669] BadVA : 45259e89
  [49.717644] PrId  : 00019374 (MIPS 24Kc)

Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:33:32 +03:00
Ryan Hsu
9191fc2a43 ath10k: update the phymode along with bandwidth change request
In the case of Station connects to AP with narrower bandwidth at beginning.
And later the AP changes the bandwidth to winder bandwidth, the AP will
beacon with wider bandwidth IE, eg VHT20->VHT40->VHT80 or VHT40->VHT80.

Since the supported BANDWIDTH will be limited by the PHYMODE, so while
Station receives the bandwidth change request, it will also need to
reconfigure the PHYMODE setting to firmware instead of just configuring
the BANDWIDTH info, otherwise it'll trigger a firmware crash with
non-support bandwidth.

The issue was observed in WLAN.RM.4.4.1-00051-QCARMSWP-1, QCA6174 with
below scenario:

AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0 MHz)
disconnect from AP xxx for new auth to yyy
RX ReassocResp from xxx (capab=0x1111 status=0 aid=102)
associated

....

AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0 MHz)
AP xxx changed bandwidth, new config is 5200 MHz, width 3 (5210/0 MHz)

....

firmware register dump:
[00]: 0x05030000 0x000015B3 0x00987291 0x00955B31
[04]: 0x00987291 0x00060730 0x00000004 0x00000001
[08]: 0x004089F0 0x00955A00 0x000A0B00 0x00400000
[12]: 0x00000009 0x00000000 0x00952CD0 0x00952CE6
[16]: 0x00952CC4 0x0098E25F 0x00000000 0x0091080D
[20]: 0x40987291 0x0040E7A8 0x00000000 0x0041EE3C
[24]: 0x809ABF05 0x0040E808 0x00000000 0xC0987291
[28]: 0x809A650C 0x0040E948 0x0041FE40 0x004345C4
[32]: 0x809A5C63 0x0040E988 0x0040E9AC 0x0042D1A8
[36]: 0x8091D252 0x0040E9A8 0x00000002 0x00000001
[40]: 0x809FDA9D 0x0040EA58 0x0043D554 0x0042D554
[44]: 0x809F8B22 0x0040EA78 0x0043D554 0x00000001
[48]: 0x80911210 0x0040EAC8 0x00000010 0x004041D0
[52]: 0x80911154 0x0040EB28 0x00400000 0x00000000
[56]: 0x8091122D 0x0040EB48 0x00000000 0x00400600

Reported-by: Rouven Czerwinski <rouven@czerwinskis.de>
Tested-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-28 12:27:05 +03:00
Omer Efrat
22d0d2fafc wireless-drivers: use BIT_ULL for NL80211_STA_INFO_ attribute types
The BIT macro uses unsigned long which some architectures handle as 32 bit
and therefore might cause macro's shift to overflow when used on a value
equals or larger than 32 (NL80211_STA_INFO_RX_DURATION and afterwards).

Since 'filled' member in station_info changed to u64, BIT_ULL macro
should be used with all NL80211_STA_INFO_* attribute types instead of BIT
to prevent future possible bugs when one will use BIT macro for higher
attributes by mistake.

This commit cleans up all usages of BIT macro with the above field
in wireless-drivers by changing it to BIT_ULL instead. In addition, there are
some places which don't use BIT nor BIT_ULL macros so align those as well.

Signed-off-by: Omer Efrat <omer.efrat@tandemg.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:07:39 +03:00
Kalle Valo
4cf44d5255 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.19. Major changes:

ath10k

* support channel 173

* fix spectral scan for QCA9984 and QCA9888 chipsets

ath6kl

* add support for Dell Wireless 1537
2018-06-18 16:48:15 +03:00
Govind Singh
d16a7ab20a ath10k: handle resource init failure case
Return type of resource init method is not assigned.
Handle resource init failures for graceful exit.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:21:18 +03:00
Surabhi Vishnoi
5db98aee93 ath10k: skip data calibration for non-bmi target
In non-bmi target ex. WCN3990, data calibration
is handled via QMI.

Skip data calibration in debug routine to enable ath10k
debugfs for non bmi targets.

Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:19:13 +03:00
Niklas Cassel
50c51f394e ath10k: do not mix spaces and tabs in Kconfig
Do not mix spaces and tabs in Kconfig.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:17:27 +03:00
Brian Norris
c9f3e7fa8b ath10k: snoc: sort include files
Sort these alphabetically, with local includes in a separate section.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:15:22 +03:00
Brian Norris
13e6cc0bd4 ath10k: snoc: drop unused WCN3990_CE_ATTR_FLAGS
We started using a common CE_ATTR_FLAGS definition, so drop this one.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:15:12 +03:00
Brian Norris
8ac5fe8e3d ath10k: snoc: stop including pci.h
It's easier to violate abstractions and introduce bugs when snoc.h is
including pci.h. Let's not do that.

I'm not extremely familiar with this driver yet, but several of the
shared PCI/SNOC bits seem to be related to the Copy Engine, so move them
to ce.h.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:15:01 +03:00
Brian Norris
426a0f0b5a ath10k: snoc: use correct bus-specific pointer in RX retry
We're 'ath10k_snoc', not 'ath10k_pci'. This probably means we're
accessing junk data in ath10k_snoc_rx_replenish_retry(), unless
'ath10k_snoc' and 'ath10k_pci' happen to have very similar struct
layouts.

Noticed by inspection.

Fixes: d915105231 ("ath10k: add hif rx methods for wcn3990")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:14:53 +03:00
Brian Norris
0644fef974 ath10k: snoc: use module_platform_driver() macro
ath10k_snoc_init()/ath10k_snoc_exit() don't add much value;
module_platform_driver() can remove the boilerplate.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:13:53 +03:00
Brian Norris
7f8f72d851 ath10k: use crash_dump enum instead of magic numbers
The comments are telling you what the enum could tell you instead.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:13:10 +03:00
YueHaibing
9fb31b66b9 ath10k: use dma_zalloc_coherent instead of allocator/memset
Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:12:32 +03:00
YueHaibing
5a21162700 ath10k: fix incorrect size of dma_free_coherent in ath10k_ce_alloc_src_ring_64
sizeof(struct ce_desc) should be a copy-paste mistake
just use sizeof(struct ce_desc_64) to avoid mem leak

Fixes: b7ba83f7c4 ("ath10k: add support for shadow register for WNC3990")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:11:26 +03:00
Wei Yongjun
6ee0e175a3 ath10k: make some functions static
Fixes the following sparse warnings:

drivers/net/wireless/ath/ath10k/snoc.c:823:5: warning:
 symbol 'ath10k_snoc_get_ce_id_from_irq' was not declared. Should it be static?
drivers/net/wireless/ath/ath10k/snoc.c:871:6: warning:
 symbol 'ath10k_snoc_init_napi' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:10:31 +03:00
Karthikeyan Periyasamy
2e9bcd0d73 ath10k: fix spectral scan for QCA9984 and QCA9888 chipsets
The spectral scan has been always broken on QCA9984 and QCA9888.

Introduce a hardware parameter 'spectral_bin_offset' to resolve this issue for
QCA9984 and QCA9888 chipsets. For other chipsets, the hardware parameter
'spectral_bin_offset' is zero so that existing behaviour is retained as it is.

In QCA9984 and QCA9888 chipsets, hardware param value 'spectral_bin_discard'
is 12 bytes. This 12 bytes is derived as the sum of segment index (4 bytes),
extra bins before the actual data (4 bytes) and extra bins after the actual
data (4 bytes). Always discarding (12 bytes) happens at end of the samples and
incorrect samples got dumped, so that user can find incorrect arrangement
samples in spectral scan dump.

To fix this issue, we have to discard first 8 bytes and last 4 bytes in every
samples, so totally 12 bytes are discarded. In every sample we need to consider
the offset while taking the actual spectral data. For QCA9984, QCA9888 the
offset is 8 bytes (segment index + extra bins before actual data).

Hardware tested: QCA9984 and QCA9888
Firmware tested: 10.4-3.5.3-00053

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:09:45 +03:00
Ben Greear
38441fb6fc ath10k: support use of channel 173
The India regulatory domain allows CH 173, so add that to the
available channel list.  I verified basic connectivity between
a 9880 and 9984 NIC.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-14 18:08:37 +03:00
Colin Ian King
260e629bbf ath10k: fix memory leak of tpc_stats
Currently tpc_stats is allocated and is leaked on the return
path if num_tx_chain is greater than WMI_TPC_TX_N_CHAIN. Avoid
this leak by performing the check on num_tx_chain before the
allocation of tpc_stats.

Detected by CoverityScan, CID#1469422 ("Resource Leak")
Fixes: 4b190675ad ("ath10k: fix kernel panic while reading tpc_stats")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-13 14:50:40 +03:00
Gustavo A. R. Silva
f1d270ae10 ath10k: htt_tx: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in this particular case, I replaced "pass through" with
a proper "fall through" comment, which is what GCC is expecting
to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-13 14:39:39 +03:00
Kees Cook
6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Linus Torvalds
1c8c5a9d38 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Add Maglev hashing scheduler to IPVS, from Inju Song.

 2) Lots of new TC subsystem tests from Roman Mashak.

 3) Add TCP zero copy receive and fix delayed acks and autotuning with
    SO_RCVLOWAT, from Eric Dumazet.

 4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
    Brouer.

 5) Add ttl inherit support to vxlan, from Hangbin Liu.

 6) Properly separate ipv6 routes into their logically independant
    components. fib6_info for the routing table, and fib6_nh for sets of
    nexthops, which thus can be shared. From David Ahern.

 7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
    messages from XDP programs. From Nikita V. Shirokov.

 8) Lots of long overdue cleanups to the r8169 driver, from Heiner
    Kallweit.

 9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.

10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.

11) Plumb extack down into fib_rules, from Roopa Prabhu.

12) Add Flower classifier offload support to igb, from Vinicius Costa
    Gomes.

13) Add UDP GSO support, from Willem de Bruijn.

14) Add documentation for eBPF helpers, from Quentin Monnet.

15) Add TLS tx offload to mlx5, from Ilya Lesokhin.

16) Allow applications to be given the number of bytes available to read
    on a socket via a control message returned from recvmsg(), from
    Soheil Hassas Yeganeh.

17) Add x86_32 eBPF JIT compiler, from Wang YanQing.

18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
    From Björn Töpel.

19) Remove indirect load support from all of the BPF JITs and handle
    these operations in the verifier by translating them into native BPF
    instead. From Daniel Borkmann.

20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.

21) Allow XDP programs to do lookups in the main kernel routing tables
    for forwarding. From David Ahern.

22) Allow drivers to store hardware state into an ELF section of kernel
    dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.

23) Various RACK and loss detection improvements in TCP, from Yuchung
    Cheng.

24) Add TCP SACK compression, from Eric Dumazet.

25) Add User Mode Helper support and basic bpfilter infrastructure, from
    Alexei Starovoitov.

26) Support ports and protocol values in RTM_GETROUTE, from Roopa
    Prabhu.

27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
    Brouer.

28) Add lots of forwarding selftests, from Petr Machata.

29) Add generic network device failover driver, from Sridhar Samudrala.

* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
  strparser: Add __strp_unpause and use it in ktls.
  rxrpc: Fix terminal retransmission connection ID to include the channel
  net: hns3: Optimize PF CMDQ interrupt switching process
  net: hns3: Fix for VF mailbox receiving unknown message
  net: hns3: Fix for VF mailbox cannot receiving PF response
  bnx2x: use the right constant
  Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
  net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
  enic: fix UDP rss bits
  netdev-FAQ: clarify DaveM's position for stable backports
  rtnetlink: validate attributes in do_setlink()
  mlxsw: Add extack messages for port_{un, }split failures
  netdevsim: Add extack error message for devlink reload
  devlink: Add extack to reload and port_{un, }split operations
  net: metrics: add proper netlink validation
  ipmr: fix error path when ipmr_new_table fails
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  net: hns3: remove unused hclgevf_cfg_func_mta_filter
  netfilter: provide udp*_lib_lookup for nf_tproxy
  qed*: Utilize FW 8.37.2.0
  ...
2018-06-06 18:39:49 -07:00
Sriram R
6f6eb1bcbe ath10k: DFS Host Confirmation
In the 10.4-3.6 firmware branch there's a new DFS Host confirmation
feature which is advertised using WMI_SERVICE_HOST_DFS_CHECK_SUPPORT flag.

This new features enables the ath10k host to send information to the
firmware on the specifications of detected radar type. This allows the
firmware to validate if the host's radar pattern detector unit is
operational and check if the radar information shared by host matches
the radar pulses sent as phy error events from firmware. If the check
fails the firmware won't allow use of DFS channels on AP mode when using
FCC regulatory region.

Hence this patch is mandatory when using a firmware from 10.4-3.6 branch.
Else, DFS channels on FCC regions cannot be used.

Supported Chipsets : QCA9984/QCA9888/QCA4019
Firmware Version : 10.4-3.6-00104

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-25 13:15:31 +03:00
Sriram R
f40105e674 ath: add support to get the detected radar specifications
This enables ath10k/ath9k drivers to collect the specifications of the
radar type once it is detected by the dfs pattern detector unit.
Usage of the collected info is specific to driver implementation.
For example, collected radar info could be used by the host driver
to send to co-processors for additional processing/validation.

Note: 'radar_detector_specs' data containing the specifications of
different radar types which was private within dfs_pattern_detector/
dfs_pri_detector is now shared with drivers as well for making use
of this information.

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-25 13:15:21 +03:00
YueHaibing
cf3c0ae6a3 ath10k: remove useless test before clk_disable_unprepare
clk_disable_unprepare() already checks that the clock pointer is valid.
No need to test it before calling it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-25 13:02:56 +03:00
Pradeep Kumar Chitrapu
be8cce96f1 ath10k: add support to configure channel dwell time
Configure channel dwell time from duration of the scan request
received from mac80211 when the duration is non-zero. When the
scan request does not have duration value, use the default ones,
the current implementation.

Corresponding flag NL80211_EXT_FEATURE_SET_SCAN_DWELL is
advertized.

Supported Chipsets:
 -QCA988X/QCA9887 PCI
 -QCA99X0/QCA9984/QCA9888/QCA4019 PCI
 -QCA6174/QCA9377 PCI/USB/SDIO
 -WCN3990 SNOC

Tested on QCA9984 with firmware ver 10.4-3.6-0010

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-25 12:48:48 +03:00
Anilkumar Kolli
46dbf98c69 ath10k: add memory dump support for QCA9888 and QCA99X0
This patch adds firmware crash memory dump support for QCA9888 and QCA99X0.

Tested on:

QCA9888 firmware 10.4-3.5.3-00053
QCA99X0 firmware 10.4.1.00030-1

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-25 12:46:05 +03:00
Andres Rodriguez
1bc4d68b06 ath10k: re-enable the firmware fallback mechanism for testmode
The ath10k testmode uses request_firmware_direct() in order to avoid
producing firmware load warnings. Disabling the fallback mechanism was a
side effect of disabling warnings.

We now have a new API that allows us to avoid warnings while keeping the
fallback mechanism enabled. So use that instead.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-14 16:44:41 +02:00
Andres Rodriguez
c8e0280263 ath10k: use firmware_request_nowarn() to load firmware
This reduces the unnecessary spew when trying to load optional firmware:
"Direct firmware load for ... failed with error -2"

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-14 16:44:41 +02:00
Govind Singh
c3f7f31efe ath10k: replace bit shifts with the BIT() macro for rx desc bits
Use the BIT() macro from 'linux/bitops.h' to define the rx desc
bit flags to have consistency with new definitions.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:25:17 +03:00
Marcus Folkesson
0be928850d ath10k: hw: make consistent usage of ATH10K_FW_DIR in paths
For some reason not all entries used ATH10K_FW_DIR so fix that. No functional
changes.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:24:03 +03:00
Kenneth Lu
3e2740cda2 ath10k: remove variables which set but not used
Variable buf_len and num_vdev_stats are being assigned but never read.
These are redundant and can be remove.

Signed-off-by: Kenneth Lu <kuohsianglu@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:22:11 +03:00
Erik Stromdahl
e3148cc5fe ath10k: fix return value check in wake_tx_q op
ath10k_mac_tx_push_txq returns either a postive integer (length) on
success or a negative error code on error.

The "if (ret) break;" statement will thus always break out of the loop
immediately after ath10k_mac_tx_push_txq has returned (making the loop
pointless).

A side effect of this fix is that we will iterate the queue until
ath10k_mac_tx_push_txq returns -ENOENT. This will make sure the queue is
not added back to ar->txqs when it is empty. This could potentially
improve performance somewhat (I have seen a small improvement with SDIO
devices).

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:03:08 +03:00
Fabio Estevam
469bd5eab6 ath10k: snoc: Remove owner assignment from platform_driver
Structure platform_driver does not need to set the owner field, as this
will be populated by the driver core.

Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:02:11 +03:00
Yu Wang
cfb353c0dc ath10k: add quiet mode support for QCA6174/QCA9377
To enable thermal throttling for QCA6174 and QCA9377,
implement gen_pdev_set_quiet_mode for them.
With this change, quiet period for QCA6174/QCA9377 can
be also set/get via debugfs.
Usage:
To set quiet period:
 echo <period> > /sys/kernel/debug/ieee80211/phyX/ath10k/quiet_period
To get the current quiet period:
 cat /sys/kernel/debug/ieee80211/phyX/ath10k/quiet_period

This change has been verified with
QCA6174 hw3.2(fw: WLAN_RM.4.4.1-00102-QCARMSWP-1).

Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 12:00:33 +03:00
Niklas Cassel
e60a925901 ath10k: sdio: jump to correct label in error handling path
Jump to the correct label in error handling path.
At this point of execution create_singlethread_workqueue() has succeeded,
so it should be properly destroyed.

Jump label was renamed in commit ec2c64e202 ("ath10k: sdio: fix memory
leak for probe allocations").
However, the bug was originally introduced in commit d96db25d20
("ath10k: add initial SDIO support").

Fixes: d96db25d20 ("ath10k: add initial SDIO support")
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-27 14:39:32 +03:00
Colin Ian King
785281342d ath10k: fix spelling mistake: "servive" -> "service"
Trivial fix to spelling mistake in ath10k_warn warning message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-27 14:38:35 +03:00
Tamizh Chelvam
4b190675ad ath10k: fix kernel panic while reading tpc_stats
When attempt to read tpc_stats for the chipsets which support
more than 3 tx chain will trigger kernel panic(kernel stack is corrupted)
due to writing values on rate_code array out of range.
This patch changes the array size depends on the WMI_TPC_TX_N_CHAIN and
added check to avoid write values on the array if the num tx chain
get in tpc config event is greater than WMI_TPC_TX_N_CHAIN.

Tested on QCA9984 with firmware-5.bin_10.4-3.5.3-00057

Kernel panic log :

[  323.510944] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: bf90c654
[  323.510944]
[  323.524390] CPU: 0 PID: 1908 Comm: cat Not tainted 3.14.77 #31
[  323.530224] [<c021db48>] (unwind_backtrace) from [<c021ac08>] (show_stack+0x10/0x14)
[  323.537941] [<c021ac08>] (show_stack) from [<c03c53c0>] (dump_stack+0x80/0xa0)
[  323.545146] [<c03c53c0>] (dump_stack) from [<c022e4ac>] (panic+0x84/0x1e4)
[  323.552000] [<c022e4ac>] (panic) from [<c022e61c>] (__stack_chk_fail+0x10/0x14)
[  323.559350] [<c022e61c>] (__stack_chk_fail) from [<bf90c654>] (ath10k_wmi_event_pdev_tpc_config+0x424/0x438 [ath10k_core])
[  323.570471] [<bf90c654>] (ath10k_wmi_event_pdev_tpc_config [ath10k_core]) from [<bf90d800>] (ath10k_wmi_10_4_op_rx+0x2f0/0x39c [ath10k_core])
[  323.583047] [<bf90d800>] (ath10k_wmi_10_4_op_rx [ath10k_core]) from [<bf8fcc18>] (ath10k_htc_rx_completion_handler+0x170/0x1a0 [ath10k_core])
[  323.595702] [<bf8fcc18>] (ath10k_htc_rx_completion_handler [ath10k_core]) from [<bf961f44>] (ath10k_pci_hif_send_complete_check+0x1f0/0x220 [ath10k_pci])
[  323.609421] [<bf961f44>] (ath10k_pci_hif_send_complete_check [ath10k_pci]) from [<bf96562c>] (ath10k_ce_per_engine_service+0x74/0xc4 [ath10k_pci])
[  323.622490] [<bf96562c>] (ath10k_ce_per_engine_service [ath10k_pci]) from [<bf9656f0>] (ath10k_ce_per_engine_service_any+0x74/0x80 [ath10k_pci])
[  323.635423] [<bf9656f0>] (ath10k_ce_per_engine_service_any [ath10k_pci]) from [<bf96365c>] (ath10k_pci_napi_poll+0x44/0xe8 [ath10k_pci])
[  323.647665] [<bf96365c>] (ath10k_pci_napi_poll [ath10k_pci]) from [<c0599994>] (net_rx_action+0xac/0x160)
[  323.657208] [<c0599994>] (net_rx_action) from [<c02324a4>] (__do_softirq+0x104/0x294)
[  323.665017] [<c02324a4>] (__do_softirq) from [<c0232920>] (irq_exit+0x9c/0x11c)
[  323.672314] [<c0232920>] (irq_exit) from [<c0217fc0>] (handle_IRQ+0x6c/0x90)
[  323.679341] [<c0217fc0>] (handle_IRQ) from [<c02084e0>] (gic_handle_irq+0x3c/0x60)
[  323.686893] [<c02084e0>] (gic_handle_irq) from [<c02095c0>] (__irq_svc+0x40/0x70)
[  323.694349] Exception stack(0xdd489c58 to 0xdd489ca0)
[  323.699384] 9c40:                                                       00000000 a0000013
[  323.707547] 9c60: 00000000 dc4bce40 60000013 ddc1d800 dd488000 00000990 00000000 c085c800
[  323.715707] 9c80: 00000000 dd489d44 0000092d dd489ca0 c026e664 c026e668 60000013 ffffffff
[  323.723877] [<c02095c0>] (__irq_svc) from [<c026e668>] (rcu_note_context_switch+0x170/0x184)
[  323.732298] [<c026e668>] (rcu_note_context_switch) from [<c020e928>] (__schedule+0x50/0x4d4)
[  323.740716] [<c020e928>] (__schedule) from [<c020e490>] (schedule_timeout+0x148/0x178)
[  323.748611] [<c020e490>] (schedule_timeout) from [<c020f804>] (wait_for_common+0x114/0x154)
[  323.756972] [<c020f804>] (wait_for_common) from [<bf8f6ef0>] (ath10k_tpc_stats_open+0xc8/0x340 [ath10k_core])
[  323.766873] [<bf8f6ef0>] (ath10k_tpc_stats_open [ath10k_core]) from [<c02bb598>] (do_dentry_open+0x1ac/0x274)
[  323.776741] [<c02bb598>] (do_dentry_open) from [<c02c838c>] (do_last+0x8c0/0xb08)
[  323.784201] [<c02c838c>] (do_last) from [<c02c87e4>] (path_openat+0x210/0x598)
[  323.791408] [<c02c87e4>] (path_openat) from [<c02c9d1c>] (do_filp_open+0x2c/0x78)
[  323.798873] [<c02c9d1c>] (do_filp_open) from [<c02bc85c>] (do_sys_open+0x114/0x1b4)
[  323.806509] [<c02bc85c>] (do_sys_open) from [<c0208c80>] (ret_fast_syscall+0x0/0x44)
[  323.814241] CPU1: stopping
[  323.816927] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.14.77 #31
[  323.823008] [<c021db48>] (unwind_backtrace) from [<c021ac08>] (show_stack+0x10/0x14)
[  323.830731] [<c021ac08>] (show_stack) from [<c03c53c0>] (dump_stack+0x80/0xa0)
[  323.837934] [<c03c53c0>] (dump_stack) from [<c021cfac>] (handle_IPI+0xb8/0x140)
[  323.845224] [<c021cfac>] (handle_IPI) from [<c02084fc>] (gic_handle_irq+0x58/0x60)
[  323.852774] [<c02084fc>] (gic_handle_irq) from [<c02095c0>] (__irq_svc+0x40/0x70)
[  323.860233] Exception stack(0xdd499fa0 to 0xdd499fe8)
[  323.865273] 9fa0: ffffffed 00000000 1d3c9000 00000000 dd498000 dd498030 10c0387d c08b62c8
[  323.873432] 9fc0: 4220406a 512f04d0 00000000 00000000 00000001 dd499fe8 c021838c c0218390
[  323.881588] 9fe0: 60000013 ffffffff
[  323.885070] [<c02095c0>] (__irq_svc) from [<c0218390>] (arch_cpu_idle+0x30/0x50)
[  323.892454] [<c0218390>] (arch_cpu_idle) from [<c026500c>] (cpu_startup_entry+0xa4/0x108)
[  323.900690] [<c026500c>] (cpu_startup_entry) from [<422085a4>] (0x422085a4)

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-27 14:33:28 +03:00
Venkateswara Naralasetty
2f177c1628 ath10k: fix information leak in debugfs
During write to some of debugfs in ath10k, few variables exposing stack
data when process user input. which leads to possible information leak.

This patch fix this issue by initializing buffer and checks
the return valure of 'simple_write_to_buffer'.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-27 14:24:25 +03:00
Govind Singh
d5cded16fd ath10k: enable sta idle power save
Enable sta power save in fw for the targets that
supports idle power save. The idle ps enable command
will be ignored by the firmware which does not support
this feature.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 09:04:30 +03:00
Govind Singh
4945af5b26 ath10k: enable SRRI/DRRI support on ddr for WCN3990
SRRI/DRRI are not mapped in the HW Shadow block and can lead
to un-clocked access if common subsystem in the target is
powered down due to idle mode.

To mitigate this problem SRRI/DRRI can be read from
DDR instead of doing an actual hardware read.
Host allocates non cached memory on ddr and configures
the physical address of this memory to the CE hardware.
The hardware updates the RRI on this particular location.
Read SRRI/DRRI from DDR location instead of
direct target read.

Enable retention restore on ddr using hw params to enable
in specific targets.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 09:04:21 +03:00
Rakesh Pillai
b7ba83f7c4 ath10k: add support for shadow register for WNC3990
WCN3990 needs shadow register write operation support
for copy engine for regular operation in powersave mode.
Add support for copy engine shadow register write in
datapath tx for WCN3990

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 09:04:14 +03:00
Rakesh Pillai
b2e40d7ab8 ath10k: add hw params for shadow register support
wcn3990 supports shadow register for ce write.

Add a hw param for shadow register support.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 09:04:07 +03:00
Rakesh Pillai
20529b33aa ath10k: enable hw checksum for wcn3990
By default ath10k driver enables the support for HW_CHECKSUM
(NETIF_F_HW_CSUM). Since the TCP/UDP checksum calculation is not enabled
in the wcn3990 firmware the checksum is incorrect in the TCP/UDP packets
and all patckets are dropped. But due note that wcn3990 support in
ath10k is still incomplete so this isn't a critical fix (yet).

Enable hw checksum calculations in wcn3990 hardware by
setting the proper flags in msdu descriptor tso flags.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 08:57:48 +03:00
Wen Gong
fa3440fa2f ath10k: convert wow pattern from 802.3 to 802.11
When trying to set wow wakeup patterns it fails with this command:

iw phyxx wowlan enable patterns offset xx+ IP address xx.xx.xx.xx

The reason is that the wow pattern from upper layer is in 802.3 format
for this case, it need to convert it to 802.11 format. The input
offset parameter is used for 802.3, but the actual offset firmware
need depends on rx_decap_mode, so that it needs to be recalculated.
Pattern of 802.3 packet is not same with 802.11 packet. If the
rx_decap_mode is ATH10K_HW_TXRX_NATIVE_WIFI, then firmware will
receive data packet with 802.11 format from hardware.

Tested with QCA6174 hw3.0 with firmware
WLAN.RM.4.4.1-00099-QCARMSWPZ-1, but this will also affect QCA9377.
This has always failed, so it's not a regression with new firmware
releases.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 08:54:52 +03:00
Carl Huang
60e1d0fb29 ath10k: support MAC address randomization in scan
The ath10k reports the random_mac_addr capability to upper layer
based on the service bit firmware reported. Driver sets the
spoofed flag in scan_ctrl_flag to firmware if upper layer has
enabled this feature in scan request.

Test with QCA6174 hw3.0 and firmware-6.bin_WLAN.RM.4.4.1-00102-QCARMSWP-1,
but QCA9377 is also affected.

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 08:45:41 +03:00
Carl Huang
cea19a6ce8 ath10k: add WMI_SERVICE_AVAILABLE_EVENT support
Add WMI_SERVICE_AVAILABLE_EVENT to extend WMI_SERVICE_READY_EVENT,
the 128bit service map in WMI_SERVICE_READY_EVENT is not enough
for firmware to notice new WLAN service to host driver. Hereby,
for thoese new WLAN service, firmware will notice host driver by
WMI_SERVICE_AVAILABLE_EVENT.

Signed-off-by: Alan Liu <alanliu@codeaurora.org>
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 08:45:33 +03:00
Govind Singh
6da2b2d46f ath10k: fix fw path name for WCN3990 target
FW path is mapped incorrectly for the WCN3990
hw version. Fix fw path with correct hw1.0 name.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 19:21:18 +03:00
Erik Stromdahl
9a5511d5f2 ath10k: add inlined wrappers for htt rx ops
Added for the same reason as the TX wrappers.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 19:19:34 +03:00
Erik Stromdahl
5df6e13130 ath10k: add inlined wrappers for htt tx ops
These wrappers makes the HTT ops align better with the HIF ops
(where similar wrappers are used).

It also makes it easier for a target to have unsupported ops
(by letting the corresponding function pointer be NULL).

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 19:19:28 +03:00
Thomas Hebb
c848966806 ath10k: search all IEs for variant before falling back
commit f2593cb1b2 ("ath10k: Search SMBIOS for OEM board file
extension") added a feature to ath10k that allows Board Data File
(BDF) conflicts between multiple devices that use the same device IDs
but have different calibration requirements to be resolved by allowing
a "variant" string to be stored in SMBIOS [and later device tree, added
by commit d06f26c5c8 ("ath10k: search DT for qcom,ath10k-calibration-
variant")] that gets appended to the ID stored in board-2.bin.

This original patch had a regression, however. Namely that devices with
a variant present in SMBIOS that didn't need custom BDFs could no longer
find the default BDF, which has no variant appended. The patch was
reverted and re-applied with a fix for this issue in commit 1657b8f84e
("search SMBIOS for OEM board file extension").

But the fix to fall back to a default BDF introduced another issue: the
driver currently parses IEs in board-2.bin one by one, and for each one
it first checks to see if it matches the ID with the variant appended.
If it doesn't, it checks to see if it matches the "fallback" ID with no
variant. If a matching BDF is found at any point during this search, the
search is terminated and that BDF is used. The issue is that it's very
possible (and is currently the case for board-2.bin files present in the
ath10k-firmware repository) for the default BDF to occur in an earlier
IE than the variant-specific BDF. In this case, the current code will
happily choose the default BDF even though a better-matching BDF is
present later in the file.

This patch fixes the issue by first searching the entire file for the ID
with variant, and searching for the fallback ID only if that search
fails. It also includes some code cleanup in the area, as
ath10k_core_fetch_board_data_api_n() no longer does its own string
mangling to remove the variant from an ID, instead leaving that job to a
new flag passed to ath10k_core_create_board_name().

I've tested this patch on a QCA4019 and verified that the driver behaves
correctly for 1) both fallback and variant BDFs present, 2) only fallback
BDF present, and 3) no matching BDFs present.

Fixes: 1657b8f84e ("ath10k: search SMBIOS for OEM board file extension")
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 19:18:15 +03:00
Maharaja Kennadyrajan
b022ca257c ath10k: fix a typo in ath10k_wmi_set_wmm_param()
Fix a typo in the function ath10k_wmi_set_wmm_param().

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:59:30 +03:00
Manikanta Pubbisetty
1e8f775023 ath10k: correct target assert problem due to CE5 stuck
Correct a minor bug in the commit 0628467f97 ("ath10k: fix
copy engine 5 destination ring stuck") which introduced a change to fix
firmware assert that happens when ring indices of copy engine 5 are stuck
for a specific duration, problem with this fix is that it did not use
ring arithmatic. As a result,firmware asserts did not go away entirely
athough the frequency of occurrence has reduced. Using ring arithmatic
to fix the issue.

Tested on QCA9984(fw version-10.4-3.4-00082).

Fixes: 0628467f97 ("ath10k: fix copy engine 5 destination ring stuck)
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:58:27 +03:00
Govind Singh
a6a793f987 ath10k: vote for hardware resources for WCN3990
Add clock and regulator votes for WCN3990 WLAN
chipset.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:53:03 +03:00
Rakesh Pillai
ea66b12e63 ath10k: check all CE for data if irq summary is not retained
WCN3990 has interrupts per CE and the interrupt summary
is not retained after the interrupt handler has finished
execution. We need to check if we received any
ce in rx and tx completion path.

Generate a interrupt summary with all CE interrupts if
the target does not retain interrupt summary after the
execution of interrupt handler.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:57 +03:00
Rakesh Pillai
140d1214ef ath10k: add support to get target info from hif ops
wcn3990 does not use bmi.
Add support to get target info from hif ops.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:51 +03:00
Govind Singh
546d407c90 ath10k: modify hif tx paddr to dma_addr_t type
Change type of hif sg tx paddr to dma_addr_t for
supporting target having addressing mode greater than
32 bit.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:44 +03:00
Govind Singh
d915105231 ath10k: add hif rx methods for wcn3990
Add hif rx methods in rx path for wcn3990
target.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:38 +03:00
Govind Singh
d390509bdf ath10k: add hif tx methods for wcn3990
Add hif tx/tx-complete methods for wcn3990
target.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:31 +03:00
Govind Singh
0fa4fbe9b8 ath10k: add hif power-up/power-down methods
Add hif power-up/power-down methods for wcn3990
target.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:25 +03:00
Govind Singh
84efe7f6eb ath10k: map HTC services to tx/rx pipes for wcn3990
Add mapping of HTC endpoint services supported
by wcn3990 target to tx/rx pipe.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:19 +03:00
Govind Singh
b8c27e8621 ath10k: add HTC services for WCN3990
WCN3990 target uses 3 Copy engine(CE1/CE9/CE10) in RX path
and CE 11 for pktlog.
Add data path HTC ep services and PKTLOG services for WCN3990.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:12 +03:00
Govind Singh
a6e149a9ff ath10k: add hif start/stop methods for wcn3990 snoc layer
Add hif start/stop callback for allocating/freeing buffers
on tx/rx pipe and enabling/disabling the tx/rx pipe
interrupts.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:52:06 +03:00
Govind Singh
c963a683e7 ath10k: add resource init and deinit for WCN3990
Add methods for resource(memory, irq, HOST CE config)
initialization and de-initialization for WCN3990 target.

WCN3990 target uses 12 copy engine and following CE config.

[CE0] :host->target control and raw streams
[CE1] :target->host HTT
[CE2] :target->host WMI
[CE3] :host->target WMI
[CE4] :host->target HTT
[CE5] :reserved
[CE6] :Target autonomous HIF_memcpy
[CE7] :reserved
[CE8] :reserved
[CE9] :target->host HTT
[CE10] :target->host HTT
[CE11] :target -> host PKTLOG

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:51:59 +03:00
Govind Singh
17f5559e0d ath10k: platform driver for WCN3990 SNOC WLAN module
WCN3990 is integrated 802.11ac chipset with SNOC
bus interface. Add snoc layer driver registration
and associated ops.

WCN3990 support is not yet complete as cold-boot
handshake is done using qmi(Qualcomm-MSM-Interface)
and qmi client support will be added once qmi framework
is available.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:51:52 +03:00
Govind Singh
a0aedd6e0b ath10k: build ce layer in ath10k core module
CE layer is shared between pci and snoc target and results
in duplicate object inclusion if both modules are compiled
together statically and undefined KBUILD_MODNAME if
compiled as module.

Fix this by building ce layer in ath10k core module by
adding ce object inclusion with ATH10K_CE boolean CONFIG.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:50:33 +03:00
Venkateswara Naralasetty
235b9c4276 ath10k: Add tx ack signal support for management frames
This patch add support to get RSSI from acknowledgment
frames for transmitted management frames.

hardware_used: QCA4019, QCA9984.
firmware version: 10.4-3.5.3-00052.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-19 18:47:00 +03:00
Colin Ian King
6ce36faeac ath10k: fix spelling mistake: "tiggers" -> "triggers"
Trivial fix to spelling mistake in message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-10 17:31:47 +03:00
Marcus Folkesson
ec2c64e202 ath10k: sdio: fix memory leak for probe allocations
These allocations are not freed upon release.
When on it; go for managed resources instead.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
[kvalo: fix two checkpatch warnings]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-10 17:30:50 +03:00
Arnd Bergmann
6707ba0105 ath10k: avoid possible string overflow
The way that 'strncat' is used here raised a warning in gcc-8:

drivers/net/wireless/ath/ath10k/wmi.c: In function 'ath10k_wmi_tpc_stats_final_disp_tables':
drivers/net/wireless/ath/ath10k/wmi.c:4649:4: error: 'strncat' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]

Effectively, this is simply a strcat() but the use of strncat() suggests
some form of overflow check. Regardless of whether this might actually
overflow, using strlcat() instead of strncat() avoids the warning and
makes the code more robust.

Fixes: bc64d05220 ("ath10k: debugfs support to get final TPC stats for 10.4 variants")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-10 17:27:52 +03:00
Rajkumar Manoharan
1b3fdb50f8 ath10k: fix vdev stats for 10.4 firmware
Currently vdev stats displayed in fw_stats are applicable
only for TLV based firmware and fix it for 10.4 firmware
as of now. The vdev stats in 10.4 firmware is split into two
parts (vdev_stats, vdev_stats_extended). The actual stats
are captured only in extended vdev stats. In order to enable
vdev stats, appropriate feature bit will be set on extended
resource config. As FTM related counters are available only on
newer 10.4 based firmware, these counters will be displayed
only on valid data.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:04:12 +03:00
Christian Lamparter
91493e8e10 ath10k: fix recent bandwidth conversion bug
The commit "cfg80211: make RATE_INFO_BW_20 the default" changed
the index of RATE_INFO_BW_20, but the updates to ath10k missed
the special bandwidth calculation case in
ath10k_update_per_peer_tx_stats().

This will fix below warning,

 WARNING: CPU: 0 PID: 609 at net/wireless/util.c:1254
 cfg80211_calculate_bitrate+0x174/0x220
 invalid rate bw=1, mcs=9, nss=2

 (unwind_backtrace) from
 (cfg80211_calculate_bitrate+0x174/0x220)
 (cfg80211_calculate_bitrate) from
 (nl80211_put_sta_rate+0x44/0x1dc)from
 (nl80211_put_sta_rate) from
 (nl80211_send_station+0x388/0xaf0)
 (nl80211_get_station+0xa8/0xec)
 [ end trace da8257d6a850e91a ]

Fixes: 842be75c77 ("cfg80211: make RATE_INFO_BW_20 the default")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:02:49 +03:00
Anilkumar Kolli
8ebee73b57 ath10k: advertize beacon_int_min_gcd
This patch fixes regression caused by 0c317a02ca
("cfg80211: support virtual interfaces with different beacon intervals"),
with this change cfg80211 expects the driver to advertize
'beacon_int_min_gcd' to support different beacon intervals in multivap
scenario. This support is added for, QCA988X/QCA99X0/QCA9984/QCA4019.

Verifed AP + mesh bring up on QCA9984 with beacon interval 100msec and
1000msec respectively.
Frimware: firmware-5.bin_10.4-3.5.3-00053

Fixes: 0c317a02ca ("cfg80211: support virtual interfaces with different beacon intervals")
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:01:19 +03:00
Yingying Tang
9cdd005750 ath10k: fix TDLS peer TX data failure issue on encryped AP
For WPA encryption, QCA6174 firmware(version: WLAN.RM.4.4) will unblock
data when M4 was sent successfully. For other encryption which didn't need
4-way handshake firmware will unblock the data when peer authorized. Since
TDLS is 3-way handshake host need send authorize cmd to firmware to unblock
data.

Signed-off-by: Yingying Tang <yintang@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:00:19 +03:00
Yingying Tang
c3816c9ee1 ath10k: avoid to set WEP key for TDLS peer
TDLS peer do not need WEP key. Setting WEP key will lead
to TDLS setup failure. Add fix to avoid setting WEP key
for TDLS peer.

Signed-off-by: Yingying Tang <yintang@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:00:12 +03:00
Yingying Tang
4c9f8d1146 ath10k: enable TDLS peer inactivity detection
Enable TDLS peer inactivity detetion feature.
QCA6174 firmware(version: WLAN.RM.4.4) support TDLS link inactivity detecting.
Set related parameters in TDLS WMI command to enable this feature.

Signed-off-by: Yingying Tang <yintang@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 12:00:06 +03:00
Yingying Tang
802ca33549 ath10k: enable TDLS peer buffer STA feature
Enable TDLS peer buffer STA feature.
QCA6174 firmware(version: WLAN.RM.4.4) support TDLS peer buffer STA,
it reports this capability through wmi service map in wmi service ready
event. Set related parameter in TDLS WMI command to enable this feature.

Signed-off-by: Yingying Tang <yintang@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:59:58 +03:00
Anilkumar Kolli
219cc084c6 ath10k: add memory dump support QCA9984
QCA9984/QCA99X0/QCA4019 chipsets have 8 memory regions, dump all of them to the
firmware coredump file. Some of the regions need to be read using ioread() so
add new region types for them.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
[kvalo: refactoring etc]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:54:32 +03:00
Kalle Valo
10c2288430 ath10k: refactor ath10k_pci_dump_memory() in preparation for QCA9984 support
As QCA9984 needs two region types refactor the code to make it easier add the
new types. No functional changes.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:54:25 +03:00
Sathishkumar Muruganandam
606204bb86 ath10k: suppress "Unknown eventid: 36925" warnings
FW has Smart Logging feature enabled by default for detecting failures
and processing FATAL_CONDITION_EVENTID (36925 - 0x903D) back to host.

Since ath10k doesn't implement the Smart Logging and FATAL CONDITION
EVENT processing yet, suppressing the unknown event ID warning by moving
this under ATH10K_DBG_WMI.

Simulated the same issue by having associated STA powered off when
ping flood was running from AP backbone. This triggerd STA KICKOUT
in AP followed by FATAL CONDITION event 36925.

Issue was reproduced and verified in below DUT
------------------------------------------------
AP mode of OpenWRT QCA9984 running 6.0.8 with FW ver 10.4-3.5.3-00053

Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:53:19 +03:00
Ryan Hsu
e3814bec38 ath10k: add FW API 6 firmware image for QCA9377
Firmware WLAN.TF.2.1-00014-QCARMSWP-1 now supports reading the board ID
information and also required 9 IRAM bank, which older ath10k version
don't have the support will fail to be enabled, so in order to maintain
the backward compatibility, we need to update the FW API to 6.

Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:51:20 +03:00
Ryan Hsu
e98199a8c2 ath10k: enable QCA6174/QCA9377 to read the chip temperature
The firmware of QCA6174/QCA9377 already support the feature, just enable
it to be able to handle the get_temperature command and process the event.

You can read the temperature by using the hwmon interface,

cat /sys/class/ieee80211/phy*/device/hwmon/hwmon2/temp1_input

Verified with the following hardware and software combination,
QCA6174, only firmware-4.bin doesn't support this, otherwise all support.
QCA9377, all the firmwares upstreamed support this command

Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:51:14 +03:00
Karthikeyan Periyasamy
55cc11da69 Revert "ath10k: send (re)assoc peer command when NSS changed"
This reverts commit 55884c045d.

When Ath10k is in AP mode and an unassociated STA sends a VHT action frame
(Operating Mode Notification for the NSS change) periodically to AP this causes
ath10k to call ath10k_station_assoc() which sends WMI_PEER_ASSOC_CMDID during
NSS update. Over the time (with a certain client it can happen within 15 mins
when there are over 500 of these VHT action frames) continuous calls of
WMI_PEER_ASSOC_CMDID cause firmware to assert due to resource exhaust.

To my knowledge setting WMI_PEER_NSS peer param itself enough to handle NSS
updates and no need to call ath10k_station_assoc(). So revert the original
commit from 2014 as it's unclear why the change was really needed.
Now the firmware assert doesn't happen anymore.

Issue observed in QCA9984 platform with firmware version:10.4-3.5.3-00053.
This Change tested in QCA9984 with firmware version: 10.4-3.5.3-00053 and
QCA988x platform with firmware version: 10.2.4-1.0-00036.

Firmware Assert log:

ath10k_pci 0002:01:00.0: firmware crashed! (guid e61f1274-9acd-4c5b-bcca-e032ea6e723c)
ath10k_pci 0002:01:00.0: qca9984/qca9994 hw1.0 target 0x01000000 chip_id 0x00000000 sub 168c:cafe
ath10k_pci 0002:01:00.0: kconfig debug 1 debugfs 1 tracing 0 dfs 1 testmode 1
ath10k_pci 0002:01:00.0: firmware ver 10.4-3.5.3-00053 api 5 features no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast crc32 4c56a386
ath10k_pci 0002:01:00.0: board_file api 2 bmi_id 0:4 crc32 c2271344
ath10k_pci 0002:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal otp max-sta 512 raw 0 hwcrypto 1
ath10k_pci 0002:01:00.0: firmware register dump:
ath10k_pci 0002:01:00.0: [00]: 0x0000000A 0x000015B3 0x00981E5F 0x00975B31
ath10k_pci 0002:01:00.0: [04]: 0x00981E5F 0x00060530 0x00000011 0x00446C60
ath10k_pci 0002:01:00.0: [08]: 0x0042F1FC 0x00458080 0x00000017 0x00000000
ath10k_pci 0002:01:00.0: [12]: 0x00000009 0x00000000 0x00973ABC 0x00973AD2
ath10k_pci 0002:01:00.0: [16]: 0x00973AB0 0x00960E62 0x009606CA 0x00000000
ath10k_pci 0002:01:00.0: [20]: 0x40981E5F 0x004066DC 0x00400000 0x00981E34
ath10k_pci 0002:01:00.0: [24]: 0x80983B48 0x0040673C 0x000000C0 0xC0981E5F
ath10k_pci 0002:01:00.0: [28]: 0x80993DEB 0x0040676C 0x00431AB8 0x0045D0C4
ath10k_pci 0002:01:00.0: [32]: 0x80993E5C 0x004067AC 0x004303C0 0x0045D0C4
ath10k_pci 0002:01:00.0: [36]: 0x80994AAB 0x004067DC 0x00000000 0x0045D0C4
ath10k_pci 0002:01:00.0: [40]: 0x809971A0 0x0040681C 0x004303C0 0x00441B00
ath10k_pci 0002:01:00.0: [44]: 0x80991904 0x0040688C 0x004303C0 0x0045D0C4
ath10k_pci 0002:01:00.0: [48]: 0x80963AD3 0x00406A7C 0x004303C0 0x009918FC
ath10k_pci 0002:01:00.0: [52]: 0x80960E80 0x00406A9C 0x0000001F 0x00400000
ath10k_pci 0002:01:00.0: [56]: 0x80960E51 0x00406ACC 0x00400000 0x00000000
ath10k_pci 0002:01:00.0: Copy Engine register dump:
ath10k_pci 0002:01:00.0: index: addr: sr_wr_idx: sr_r_idx: dst_wr_idx: dst_r_idx:
ath10k_pci 0002:01:00.0: [00]: 0x0004a000 15 15 3 3
ath10k_pci 0002:01:00.0: [01]: 0x0004a400 17 17 212 213
ath10k_pci 0002:01:00.0: [02]: 0x0004a800 21 21 20 21
ath10k_pci 0002:01:00.0: [03]: 0x0004ac00 25 25 27 25
ath10k_pci 0002:01:00.0: [04]: 0x0004b000 515 515 144 104
ath10k_pci 0002:01:00.0: [05]: 0x0004b400 28 28 155 156
ath10k_pci 0002:01:00.0: [06]: 0x0004b800 12 12 12 12
ath10k_pci 0002:01:00.0: [07]: 0x0004bc00 1 1 1 1
ath10k_pci 0002:01:00.0: [08]: 0x0004c000 0 0 127 0
ath10k_pci 0002:01:00.0: [09]: 0x0004c400 1 1 1 1
ath10k_pci 0002:01:00.0: [10]: 0x0004c800 0 0 0 0
ath10k_pci 0002:01:00.0: [11]: 0x0004cc00 0 0 0 0
ath10k_pci 0002:01:00.0: CE[1] write_index 212 sw_index 213 hw_index 0 nentries_mask 0x000001ff
ath10k_pci 0002:01:00.0: CE[2] write_index 20 sw_index 21 hw_index 0 nentries_mask 0x0000007f
ath10k_pci 0002:01:00.0: CE[5] write_index 155 sw_index 156 hw_index 0 nentries_mask 0x000001ff
ath10k_pci 0002:01:00.0: DMA addr: nbytes: meta data: byte swap: gather:
ath10k_pci 0002:01:00.0: [455]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [456]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [457]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [458]: 0x594a0038 0 0 0 1
ath10k_pci 0002:01:00.0: [459]: 0x580c0a42 0 0 0 0
ath10k_pci 0002:01:00.0: [460]: 0x594a0060 0 0 0 1
ath10k_pci 0002:01:00.0: [461]: 0x580c0c42 0 0 0 0
ath10k_pci 0002:01:00.0: [462]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [463]: 0x580c0c42 0 0 0 0
ath10k_pci 0002:01:00.0: [464]: 0x594a0038 0 0 0 1
ath10k_pci 0002:01:00.0: [465]: 0x580c0a42 0 0 0 0
ath10k_pci 0002:01:00.0: [466]: 0x594a0060 0 0 0 1
ath10k_pci 0002:01:00.0: [467]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [468]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [469]: 0x580c1c42 0 0 0 0
ath10k_pci 0002:01:00.0: [470]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [471]: 0x580c1c42 0 0 0 0
ath10k_pci 0002:01:00.0: [472]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [473]: 0x580c1c42 0 0 0 0
ath10k_pci 0002:01:00.0: [474]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [475]: 0x580c0642 0 0 0 0
ath10k_pci 0002:01:00.0: [476]: 0x594a0038 0 0 0 1
ath10k_pci 0002:01:00.0: [477]: 0x580c0842 0 0 0 0
ath10k_pci 0002:01:00.0: [478]: 0x594a0060 0 0 0 1
ath10k_pci 0002:01:00.0: [479]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [480]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [481]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [482]: 0x594a0038 0 0 0 1
ath10k_pci 0002:01:00.0: [483]: 0x580c0842 0 0 0 0
ath10k_pci 0002:01:00.0: [484]: 0x594a0060 0 0 0 1
ath10k_pci 0002:01:00.0: [485]: 0x580c0642 0 0 0 0
ath10k_pci 0002:01:00.0: [486]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [487]: 0x580c0642 0 0 0 0
ath10k_pci 0002:01:00.0: [488]: 0x594a0038 0 0 0 1
ath10k_pci 0002:01:00.0: [489]: 0x580c0842 0 0 0 0
ath10k_pci 0002:01:00.0: [490]: 0x594a0060 0 0 0 1
ath10k_pci 0002:01:00.0: [491]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [492]: 0x58174040 0 1 0 0
ath10k_pci 0002:01:00.0: [493]: 0x5a946040 0 1 0 0
ath10k_pci 0002:01:00.0: [494]: 0x59909040 0 1 0 0
ath10k_pci 0002:01:00.0: [495]: 0x5ae5a040 0 1 0 0
ath10k_pci 0002:01:00.0: [496]: 0x58096040 0 1 0 0
ath10k_pci 0002:01:00.0: [497]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [498]: 0x580c0642 0 0 0 0
ath10k_pci 0002:01:00.0: [499]: 0x5c1e0040 0 1 0 0
ath10k_pci 0002:01:00.0: [500]: 0x58153040 0 1 0 0
ath10k_pci 0002:01:00.0: [501]: 0x58129040 0 1 0 0
ath10k_pci 0002:01:00.0: [502]: 0x5952f040 0 1 0 0
ath10k_pci 0002:01:00.0: [503]: 0x59535040 0 1 0 0
ath10k_pci 0002:01:00.0: [504]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [505]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [506]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [507]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [508]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [509]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [510]: 0x594a0010 0 0 0 1
ath10k_pci 0002:01:00.0: [511]: 0x580c0042 0 0 0 0
ath10k_pci 0002:01:00.0: [512]: 0x5adcc040 0 1 0 0
ath10k_pci 0002:01:00.0: [513]: 0x5cf3d040 0 1 0 0
ath10k_pci 0002:01:00.0: [514]: 0x5c1e9040 64 1 0 0
ath10k_pci 0002:01:00.0: [515]: 0x00000000 0 0 0 0

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-29 11:49:46 +03:00
Karthikeyan Periyasamy
8b2d93dd22 ath10k: Fix kernel panic while using worker (ath10k_sta_rc_update_wk)
When attempt to run worker (ath10k_sta_rc_update_wk) after the station object
(ieee80211_sta) delete will trigger the kernel panic.

This problem arise in AP + Mesh configuration, Where the current node AP VAP
and neighbor node mesh VAP MAC address are same. When the current mesh node
try to establish the mesh link with neighbor node, driver peer creation for
the neighbor mesh node fails due to duplication MAC address. Already the AP
VAP created with same MAC address.

It is caused by the following scenario steps.

Steps:
1. In above condition, ath10k driver sta_state callback (ath10k_sta_state)
   fails to do the state change for a station from IEEE80211_STA_NOTEXIST
   to IEEE80211_STA_NONE due to peer creation fails. Sta_state callback is
   called from ieee80211_add_station() to handle the new station
   (neighbor mesh node) request from the wpa_supplicant.
2. Concurrently ath10k receive the sta_rc_update callback notification from
   the mesh_neighbour_update() to handle the beacon frames of the above
   neighbor mesh node. since its atomic callback, ath10k driver queue the
   work (ath10k_sta_rc_update_wk) to handle rc update.
3. Due to driver sta_state callback fails (step 1), mac80211 free the station
   object.
4. When the worker (ath10k_sta_rc_update_wk) scheduled to run, it will access
   the station object which is already deleted. so it will trigger kernel
   panic.

Added the peer exist check in sta_rc_update callback before queue the work.

Kernel Panic log:

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0204000
[00000000] *pgd=00000000
Internal error: Oops: 17 [#1] PREEMPT SMP ARM
CPU: 1 PID: 1833 Comm: kworker/u4:2 Not tainted 3.14.77 #1
task: dcef0000 ti: d72b6000 task.ti: d72b6000
PC is at pwq_activate_delayed_work+0x10/0x40
LR is at pwq_activate_delayed_work+0xc/0x40
pc : [<c023f988>]    lr : [<c023f984>]    psr: 40000193
sp : d72b7f18  ip : 0000007a  fp : d72b6000
r10: 00000000  r9 : dd404414  r8 : d8c31998
r7 : d72b6038  r6 : 00000004  r5 : d4907ec8  r4 : dcee1300
r3 : ffffffe0  r2 : 00000000  r1 : 00000001  r0 : 00000000
Flags: nZcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5787d  Table: 595bc06a  DAC: 00000015
...
Process kworker/u4:2 (pid: 1833, stack limit = 0xd72b6238)
Stack: (0xd72b7f18 to 0xd72b8000)
7f00:                                                       00000001 dcee1300
7f20: 00000001 c02410dc d8c31980 dd404400 dd404400 c0242790 d8c31980 00000089
7f40: 00000000 d93e1340 00000000 d8c31980 c0242568 00000000 00000000 00000000
7f60: 00000000 c02474dc 00000000 00000000 000000f8 d8c31980 00000000 00000000
7f80: d72b7f80 d72b7f80 00000000 00000000 d72b7f90 d72b7f90 d72b7fac d93e1340
7fa0: c0247404 00000000 00000000 c0208d20 00000000 00000000 00000000 00000000
7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<c023f988>] (pwq_activate_delayed_work) from [<c02410dc>] (pwq_dec_nr_in_flight+0x58/0xc4)
[<c02410dc>] (pwq_dec_nr_in_flight) from [<c0242790>] (worker_thread+0x228/0x360)
[<c0242790>] (worker_thread) from [<c02474dc>] (kthread+0xd8/0xec)
[<c02474dc>] (kthread) from [<c0208d20>] (ret_from_fork+0x14/0x34)
Code: e92d4038 e1a05000 ebffffbc[69210.619376] SMP: failed to stop secondary CPUs
Rebooting in 3 seconds..

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-26 18:14:22 +03:00
Carl Huang
9ef0f58ed7 ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait
The skb may be freed in tx completion context before
trace_ath10k_wmi_cmd is called. This can be easily captured when
KASAN(Kernel Address Sanitizer) is enabled. The fix is to move
trace_ath10k_wmi_cmd before the send operation. As the ret has no
meaning in trace_ath10k_wmi_cmd then, so remove this parameter too.

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-26 18:13:03 +03:00
Maharaja Kennadyrajan
bc64d05220 ath10k: debugfs support to get final TPC stats for 10.4 variants
Export the final Transmit Power Control (TPC) value, which is the
minimum of control power and existing TPC value to user space via
a new debugfs file "tpc_stats_final" to help with debugging.
It works with the new wmi cmd and event introduced in 10.4 firmware
branch.

WMI command ID: WMI_PDEV_GET_TPC_TABLE_CMDID
WMI event ID: WMI_PDEV_TPC_TABLE_EVENTID

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

$ cat /sys/kernel/debug/ieee80211/phyX/ath10k/tpc_stats_final

TPC config for channel 5180 mode 10

CTL             =  0x 0 Reg. Domain             = 58
Antenna Gain    =  0 Reg. Max Antenna Gain      =   0
Power Limit     = 60 Reg. Max Power             = 60
Num tx chains   =  2 Num supported rates        = 109

******************* CDD POWER TABLE ****************

No.  Preamble Rate_code tpc_value1 tpc_value2 tpc_value3
0    CCK      0x40        0          0
1    CCK      0x41        0          0
[...]
107  HTCUP    0x 0       46          46
108  HTCUP    0x 0       46          46

******************* STBC POWER TABLE ****************

No.  Preamble Rate_code tpc_value1 tpc_value2 tpc_value3
0    CCK      0x40        0          0
1    CCK      0x41        0          0
[...]
107  HTCUP    0x 0        46         46
108  HTCUP    0x 0        46         46

***********************************
TXBF not supported
**********************************

The existing tpc_stats debugfs file provides the dump
which is minimum of target power and regulatory domain.

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

Hardware_used: QCA4019
Firmware version: firmware-5.bin_10.4-3.0-00209

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-26 18:08:56 +03:00
Vasanthakumar Thiagarajan
caee728ab7 ath10k: add sta rx packet stats per tid
Added per tid sta counters for the following

- Total number MSDUs received from firmware
- Number of MSDUs received with errors like decryption, crc, mic ,etc.
- Number of MSDUs dropped in the driver
- A-MPDU/A-MSDU subframe stats
- Number of MSDUS passed to mac80211

All stats other than A-MPDU stats are only for received data frames.
A-MPDU stats might have stats for management frames when monitor
interface is active where management frames are notified both in wmi
and HTT interfaces.

These per tid stats can be enabled with tid bitmask through a debugfs
like below

 echo <tid_bitmask> > /sys/kernel/debug/ieee80211/phyX/ath10k/sta_tid_stats_mask

 tid 16 (tid_bitmask 0x10000) is used for non-qos data/management frames

The stats are read from
/sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/<sta_mac>/dump_tid_stats

Sample output:

 To enable rx stats for tid 0, 5 and 6,

 echo 0x00000061 > /sys/kernel/debug/ieee80211/phy0/ath10k/sta_tid_stats_mask

cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan15/stations/8c\:fd\:f0\:0a\:8e\:df/dump_tid_stats

  		Driver Rx pkt stats per tid, ([tid] count)
                ------------------------------------------
MSDUs from FW                   [00] 2567        [05] 3178        [06] 1089
MSDUs unchained                 [00] 0           [05] 0           [06] 0
MSDUs locally dropped:chained   [00] 0           [05] 0           [06] 0
MSDUs locally dropped:filtered  [00] 0           [05] 0           [06] 0
MSDUs queued for mac80211       [00] 2567        [05] 3178        [06] 1089
MSDUs with error:fcs_err        [00] 0           [05] 0           [06] 2
MSDUs with error:tkip_err       [00] 0           [05] 0           [06] 0
MSDUs with error:crypt_err      [00] 0           [05] 0           [06] 0
MSDUs with error:peer_idx_inval [00] 0           [05] 0           [06] 0

A-MPDU num subframes upto 10    [00] 2567        [05] 3178        [06] 1087
A-MPDU num subframes 11-20      [00] 0           [05] 0           [06] 0
A-MPDU num subframes 21-30      [00] 0           [05] 0           [06] 0
A-MPDU num subframes 31-40      [00] 0           [05] 0           [06] 0
A-MPDU num subframes 41-50      [00] 0           [05] 0           [06] 0
A-MPDU num subframes 51-60      [00] 0           [05] 0           [06] 0
A-MPDU num subframes >60        [00] 0           [05] 0           [06] 0

A-MSDU num subframes 1          [00] 2567        [05] 3178        [06] 1089
A-MSDU num subframes 2          [00] 0           [05] 0           [06] 0
A-MSDU num subframes 3          [00] 0           [05] 0           [06] 0
A-MSDU num subframes 4          [00] 0           [05] 0           [06] 0
A-MSDU num subframes >4         [00] 0           [05] 0           [06] 0

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-26 18:06:44 +03:00
Rakesh Pillai
38a1390e02 ath10k: dma unmap mgmt tx buffer if wmi cmd send fails
WCN3990 sends mgmt frames by reference via WMI.
The host dma maps the mgmt frame and sends the physical
address to the firmware in the wmi command. Since the
dma mapping is done in the gen_mgmt_tx and if the wmi
command send fails, the corresponding mgmt frame is
not being dma unmapped.

Fix the missing dma unmapping of mgmt tx frame when
wmi command sending fails for mgmt tx by reference
via WMI. The already exisiting mgmt tx using copy by
value does not need such dma unmapping.
Add a separate wmi-tlv op for mgmt tx via ref, which
takes care of unmapping the dma address, in case of
wmi command sending failure.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-14 11:52:23 +02:00
Ryan Hsu
fc8b92635f ath10k: update the IRAM bank number for QCA9377
Preparation for a new QCA9377 firmware release. The new firmware release
requires more IRAM banks, hence update that on ath10k.

The IRAM banks promotion won't break any backwards compatibility, as those IRAM
banks were not getting used in previous firmware releases.

Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 18:44:38 +02:00
Govind Singh
cf0d37aecc ath10k: fix log message for hif power on failure
HIF power-on failure is applicable to each underlying
bus type. Fix log message for hif power on failure.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-27 18:41:09 +02:00
Ignacio Nunez Hernanz
abb374fe84 ath10k: make ath10k report discarded packets to mac80211
Whenever ath10k firmware discards a packet (HTT_TX_COMPL_STATE_DISCARD
flag), the skb is freed and mac80211 does not get feedback through
ieee80211_tx_status().

Instead, make sure that the IEEE80211_TX_STAT_ACK flag is disabled and
let the packet go through, like ath9k does.

Signed-off-by: Ignacio Nunez Hernanz <nacho.nunez@aoifes.com>
[kvalo@codeaurora.org: rebase patch manually]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-26 16:44:26 +02:00
Ryan Hsu
9ce8b24aa9 Revert "ath10k: add sanity check to ie_len before parsing fw/board ie"
This reverts commit 9ed4f91628.

The commit introduced a regression that over read the ie with
the padding.

- the expected IE information

ath10k_pci 0000:03:00.0: found firmware features ie (1 B)
ath10k_pci 0000:03:00.0: Enabling feature bit: 6
ath10k_pci 0000:03:00.0: Enabling feature bit: 7
ath10k_pci 0000:03:00.0: features
ath10k_pci 0000:03:00.0: 00000000: c0 00 00 00 00 00 00 00

- the wrong IE with padding is read (0x77)

ath10k_pci 0000:03:00.0: found firmware features ie (4 B)
ath10k_pci 0000:03:00.0: Enabling feature bit: 6
ath10k_pci 0000:03:00.0: Enabling feature bit: 7
ath10k_pci 0000:03:00.0: Enabling feature bit: 8
ath10k_pci 0000:03:00.0: Enabling feature bit: 9
ath10k_pci 0000:03:00.0: Enabling feature bit: 10
ath10k_pci 0000:03:00.0: Enabling feature bit: 12
ath10k_pci 0000:03:00.0: Enabling feature bit: 13
ath10k_pci 0000:03:00.0: Enabling feature bit: 14
ath10k_pci 0000:03:00.0: Enabling feature bit: 16
ath10k_pci 0000:03:00.0: Enabling feature bit: 17
ath10k_pci 0000:03:00.0: Enabling feature bit: 18
ath10k_pci 0000:03:00.0: features
ath10k_pci 0000:03:00.0: 00000000: c0 77 07 00 00 00 00 00

Tested-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-08 14:34:18 +02:00
Yu Wang
50e79e2525 ath10k: fix kernel panic issue during pci probe
If device gone during chip reset, ar->normal_mode_fw.board is not
initialized, but ath10k_debug_print_hwfw_info() will try to access its
member, which will cause 'kernel NULL pointer' issue. This was found
using a faulty device (pci link went down sometimes) in a random
insmod/rmmod/other-op test.
To fix it, check ar->normal_mode_fw.board before accessing the member.

pci 0000:02:00.0: BAR 0: assigned [mem 0xf7400000-0xf75fffff 64bit]
ath10k_pci 0000:02:00.0: enabling device (0000 -> 0002)
ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
ath10k_pci 0000:02:00.0: failed to read device register, device is gone
ath10k_pci 0000:02:00.0: failed to wait for target init: -5
ath10k_pci 0000:02:00.0: failed to warm reset: -5
ath10k_pci 0000:02:00.0: firmware crashed during chip reset
ath10k_pci 0000:02:00.0: firmware crashed! (uuid 5d018951-b8e1-404a-8fde-923078b4423a)
ath10k_pci 0000:02:00.0: (null) target 0x00000000 chip_id 0x00340aff sub 0000:0000
ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 1 testmode 1
ath10k_pci 0000:02:00.0: firmware ver  api 0 features  crc32 00000000
...
BUG: unable to handle kernel NULL pointer dereference at 00000004
...
Call Trace:
 [<fb4e7882>] ath10k_print_driver_info+0x12/0x20 [ath10k_core]
 [<fb62b7dd>] ath10k_pci_fw_crashed_dump+0x6d/0x4d0 [ath10k_pci]
 [<fb629f07>] ? ath10k_pci_sleep.part.19+0x57/0xc0 [ath10k_pci]
 [<fb62c8ee>] ath10k_pci_hif_power_up+0x14e/0x1b0 [ath10k_pci]
 [<c10477fb>] ? do_page_fault+0xb/0x10
 [<fb4eb934>] ath10k_core_register_work+0x24/0x840 [ath10k_core]
 [<c18a00d8>] ? netlbl_unlhsh_remove+0x178/0x410
 [<c10477f0>] ? __do_page_fault+0x480/0x480
 [<c1068e44>] process_one_work+0x114/0x3e0
 [<c1069d07>] worker_thread+0x37/0x4a0
 [<c106e294>] kthread+0xa4/0xc0
 [<c1069cd0>] ? create_worker+0x180/0x180
 [<c106e1f0>] ? kthread_park+0x50/0x50
 [<c18ab4f7>] ret_from_fork+0x1b/0x28
 Code: 78 80 b8 50 09 00 00 00 75 5d 8d 75 94 c7 44 24 08 aa d7 52 fb c7 44 24 04 64 00 00 00
 89 34 24 e8 82 52 e2 c5 8b 83 dc 08 00 00 <8b> 50 04 8b 08 31 c0 e8 20 57 e3 c5 89 44 24 10 8b 83 58 09 00
 EIP: [<fb4e7754>]-
 ath10k_debug_print_board_info+0x34/0xb0 [ath10k_core]
 SS:ESP 0068:f4921d90
 CR2: 0000000000000004

Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-07 16:16:10 +02:00
Tobias Schramm
34f1cb339c ath10k: add support for Ubiquiti rebranded QCA988X v2
Some modern Ubiquiti devices contain a rebranded QCA988X rev2 with
a custom Ubiquiti vendor and device id. This patch adds support for
those devices, treating them as a QCA988X v2.

Signed-off-by: Tobias Schramm <tobleminer@gmail.com>
[kvalo@codeaurora.org: rebase, add missing fields in hw_params, fix a long line in pci.c:61]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-07 16:09:44 +02:00
Yu Wang
0a7fe71823 ath10k: correct the length of DRAM dump for QCA6174 hw3.x/QCA9377 hw1.1
The length of DRAM dump for QCA6174 hw3.0/hw3.2 and QCA9377 hw1.1
are less than the actual value, some coredump contents are missed.
To fix it, change the length from 0x90000 to 0xa8000.

Fixes: 703f261dd7 ("ath10k: add memory dump support for QCA6174/QCA9377")
Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-07 16:07:35 +02:00
Kalle Valo
a3e712b74b ath10k: fix recently introduced checkpatch warnings
Checkpatch found these issues:

drivers/net/wireless/ath/ath10k/ce.h:324: Please use a blank line after function/struct/union/enum declarations
drivers/net/wireless/ath/ath10k/core.c:1321: Please don't use multiple blank lines
drivers/net/wireless/ath/ath10k/htt.h:1859: Please use a blank line after function/struct/union/enum declarations

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-16 16:34:42 +02:00
Colin Ian King
95f27a51ee ath10k: remove redundant -ve check against u32 integer size
Variable section_table.size is a u32 and so cannot be less than
zero, hence the less than zero check is redundant and can be
removed.

Detected by CoverityScan, CID#1463855 ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-16 16:34:04 +02:00
Colin Ian King
cdd4743e9b ath10k: fix spelling mistake: "addrress" -> "address"
Trivial fix to spelling mistake in warning message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-16 16:32:15 +02:00
Ryan Hsu
9ed4f91628 ath10k: add sanity check to ie_len before parsing fw/board ie
Validate ie_len after the alignment padding before access the buffer
to avoid potential overflow.

Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-16 16:31:12 +02:00
Erik Stromdahl
e6fe214e61 ath10k: bugfix: add USB case in ath10k_core_probe_fw
It was accidentally left out from the switch statement and target info was not
queried.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
[kvalo@codeaurora.org: add commit log]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-09 10:18:32 +02:00
Erik Stromdahl
fbea11c8d5 ath10k: remove unused prototype
The function does not exist and thus, the prototype can be removed.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-09 10:18:27 +02:00
Erik Stromdahl
5c9f071327 ath10k: fix spelling error
Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-09 10:18:20 +02:00
Kalle Valo
8b1083d618 ath10k: update copyright year
Update year for Qualcomm Atheros, Inc. copyrights.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:22:01 +02:00
Kalle Valo
1a8e5c618b ath10k: add memory dump support QCA988X
Copy two regions of registers and bigger DRAM region to the dump file.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:49 +02:00
Alan Liu
703f261dd7 ath10k: add memory dump support for QCA6174/QCA9377
Add memory dump to the firmware crash data file which is provided to user space
via devcoredump interface. This makes it easier for firmware engineers to debug
firmware crashes.

Due to increased memory consumption the memory dump is disabled by default. To
enable it make sure that bit 3 is set in coredump_mask module parameter:

modprobe ath10k_core coredump_mask=0xffffffff

When RAMDUMP is enabled a buffer for the dump is allocated with vmalloc during
device probe. The actual memory layout is different in hardware versions and
the layouts are defined in coredump.c. The memory is split to regions and, to
get even finegrained control of what to copy, the region can split to smaller
sections as not all registers are readable (which could cause the whole system
to stall).

Signed-off-by: Alan Liu <alanliu@qca.qualcomm.com>
[kvalo@qca.qualcomm.com: refactoring and cleanup]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:41 +02:00
Kalle Valo
5c9d0a2020 ath10k: add coredump_mask module parameter
For memory dump support (it consumes quite a lot of memory) we need to control
what is exactly stored to the crash dump. Add a module parameter call
coredump_mask to do that. It's a bit mask of these values:

enum ath10k_fw_crash_dump_type {
	ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
	ATH10K_FW_CRASH_DUMP_CE_DATA = 1,

	ATH10K_FW_CRASH_DUMP_MAX,
};

For example, if we only want to store CE_DATA we would enable bit 2:

modprobe ath10k_core coredump_mask=0x2

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:32 +02:00
Kalle Valo
e2fcf60c6f ath10k: detach coredump.c from debug.c
Now coredump is totally separate from debug.c and doesn't depend on
CONFIG_ATH10K_DEBUGFS anymore, only on CONFIG_DEV_COREDUMP. Also remove
leftovers from the removed debugfs file support.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:23 +02:00
Kalle Valo
f25b9f285a ath10k: refactor firmware crashdump code to coredump.c
In preparation to add RAM dump support. No functional changes, only moving code
and renaming function names.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:15 +02:00
Kalle Valo
d333bdd9b0 ath10k: remove deprecated fw_crash_dump debugfs file
The fw_crash_dump file was deprecated by commmit 727000e6af ("ath10k: support
dev_coredump for crash dump") in v4.11 in favor of dev_coredump interface,
remove it now for good. Everyone should use dev_coredump now.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:20:04 +02:00
Balaji Pothunoori
14d6577568 ath10k: advertise TDLS wider bandwidth support for 5GHz
Enable TDLS wider bandwidth support for 5GHz based on firmware wmi capabilities.

This patch is required for chipset QCA9888. Tested with firmware version
10.4-3.5.1-00018.

Signed-off-by: Balaji Pothunoori <bpothuno@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:18:31 +02:00
Rakesh Pillai
71e9c29fbd ath10k: Add fw feature flag for non-bmi firmware load
HL1.0 firmware is not loaded via bmi. The bmi specific
code should not be executed for HL1.0

Add fw feature flag for non bmi targets and skip the bmi
specific code for non bmi targets.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:08:55 +02:00
Govind Singh
b796240409 ath10k: Add debug mask for SNOC bus type
WCN3990 target uses SNOC bus.
Add debug mask for SNOC bus type.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:08:49 +02:00
Govind Singh
63855e3d6e ath10k: Add SNOC bus type for WCN3990 target
WCN3990 is integrated chipset which uses system NOC.
Add SNOC bus type and related definitions.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:08:41 +02:00
Govind Singh
2a1e1ad3fd ath10k: Add support for 64 bit ce descriptor
WCN3990 CE descriptor uses 64bit address for
src/dst ring buffer. It has extended field for toeplitz
hash result, which is being used for HW assisted
hash results.

To accommodate WCN3990 descriptor, define new CE
descriptor for extended addressing mode and related
methods to handle the descriptor data.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:48 +02:00
Govind Singh
5dac5f3772 ath10k: Use dma_addr_t for ce buffers to support 64bit target
CE send and receive API's are using u32 ring address, which
truncates the address for target with 64bit addressing range.
Use dma_addr_t for ce buffers to support target with extended
addressing range.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:40 +02:00
Govind Singh
a91a626baa ath10k: Add paddrs_ring_64 support for 64bit target
paddrs_ring_64 holds the physical device address of the
rx buffers that host SW provides for the MAC HW to fill.
Since this field is used in rx ring setup and rx ring
replenish in rx data path. Define separate methods
for handling 64 bit ring paddr and attach them dynamically
based on target_64bit hw param flag. Use u64 type
while popping paddr from the rx hash table for 64bit target.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:31 +02:00
Govind Singh
bb8d0d15fc ath10k: Add hw param for rx ring size support
WCN3990 uses larger ring size in comparison to existing
ring size value.
Add rx ring size hw param for supporting different rx ring
size across multiple target.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:23 +02:00
Govind Singh
e62ee5c381 ath10k: Add support for htt_data_tx_desc_64 descriptor
WCN3990 target uses 64 bit frags_paddr in htt tx descriptor,
which holds the physical address of SKB fragments in tx data path.

In order to support 64 bit bit frags_paddr in htt tx descriptor, define
htt_data_tx_desc_64 descriptor and ath10k_htt_tx_64 method for handling
tx data path with new descriptor fields.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:11 +02:00
Govind Singh
71ad709610 ath10k: Add support for 64 bit HTT frag descriptor
WCN3990 target uses 64 bit frag descriptor and more
fields in TSO flag.
Add support for 64 bit HTT frag descriptor.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:06:02 +02:00
Govind Singh
9abe68535a ath10k: Add support for 64 bit htt rx ring cfg
WCN3900 target uses 64bit rx_ring_base_paddr and
fw_idx_shadow_reg_paddr fields in HTT rx ring cfg message.
These address points to the memory region where remote
ring empty buffers are allocated.
In order to add 64 bit htt rx ring cfg, define separate
64 bit htt rx ring cfg message and attach it in runtime
based on target_64bit hw param flag.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:05:53 +02:00
Govind Singh
3b0b55b19d ath10k: Add support for 64 bit HTT in-order indication msg
WCN3990 target use 64bit msdu address in htt in-order
indication message. Add support for 64 bit msdu address in
HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND message.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:05:44 +02:00
Govind Singh
e3def6f7dd ath10k: Update rx descriptor for WCN3990 target
WCN3990 rx descriptor uses different offset of msdu start, msdu end,
ppdu end, rx pkt end and rx frag info.
To accommodate different offsets, define respective fields in
rx descriptor of WCN3990 target.

Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:05:35 +02:00
Rakesh Pillai
f13cc6bd68 ath10k: Add hw param for 64-bit address support
WCN3990 target supports 37-bit addressing mode. In order
to accommodate extended address support, add hw param to
indicate if the target supports addressing above 32-bits.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:05:26 +02:00
Colin Ian King
a0709dfd7f ath10k: wmi: remove redundant integer fc
Variable fc is being assigned but never used, so remove it. Cleans
up the clang warning:

warning: Value stored to 'fc' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27 12:03:00 +02:00
Rakesh Pillai
03a72288c5 ath10k: wmi: add hw params entry for wcn3990
Add hw params entry for wcn3990 and populate various
target specific values for wcn3990.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:33:24 +02:00
Rakesh Pillai
9f2992fea5 ath10k: wmi: get wmi init parameter values from hw params
The parameter values for skid limit, number of peers and wds
entries values which are sent in wmi init cmd are hardware
specific.

Add support to obtain skid limit, number of peers and wds entries
values from hw params which will have the hw specific values
for these parameters.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:33:18 +02:00
Rakesh Pillai
1807da4973 ath10k: wmi: add management tx by reference support over wmi
HL1.0 firmware branch, used in wcn3990, transmits management
frames by reference over WMI.

Add support for management tx by reference over WMI.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:33:12 +02:00
Rakesh Pillai
229329ff34 ath10k: wmi: modify svc bitmap parsing for wcn3990
Due to the limitation of wmi tlv parsing logic, if there are
two parameters in a wmi event with same tlv tag, we can get only
the last value, as it overwrites the prev value of the same tlv tag.

The service ready event in wcn3990 contains two parameters of the
same tag UINT32, due to which the svc bitmap is overwritten with the
DBS support parameter.

Refactor the service ready event parsing to allow parsing two tlv
of the same tag UINT32 for wcn3990.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:33:05 +02:00
Sven Eckelmann
d06f26c5c8 ath10k: search DT for qcom,ath10k-calibration-variant
Board Data File (BDF) is loaded upon driver boot-up procedure. The right
board data file is identified on QCA4019 using bus, bmi-chip-id and
bmi-board-id.

The problem, however, can occur when the (default) board data file cannot
fulfill with the vendor requirements and it is necessary to use a different
board data file.

This problem was solved for SMBIOS by adding a special SMBIOS type 0xF8.
Something similar has to be provided for systems without SMBIOS but with
device trees. No solution was specified by QCA and therefore a new one has
to be found for ath10k.

The device tree requires addition strings to define the variant name

    wifi@a000000 {
    	status = "okay";
    	qcom,ath10k-calibration-variant = "RT-AC58U";
    };

    wifi@a800000 {
    	status = "okay";
    	qcom,ath10k-calibration-variant = "RT-AC58U";
    };

This would create the boarddata identifiers for the board-2.bin search

 *  bus=ahb,bmi-chip-id=0,bmi-board-id=16,variant=RT-AC58U
 *  bus=ahb,bmi-chip-id=0,bmi-board-id=17,variant=RT-AC58U

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:27:54 +02:00
Anilkumar Kolli
e8123bb74c ath10k: add per peer tx stats support for 10.2.4
10.2.4 firmware branch (used in QCA988X) does not support
HTT_10_4_T2H_MSG_TYPE_PEER_STATS and that's why ath10k does not provide
tranmission rate statistics to user space, instead it just shows
hardcoded 6 Mbit/s. But pktlog firmware facility provides per peer tx
statistics. The firmware sends one pktlog event for every four
PPDUs per peer, which include:

* successful number of packets and bytes transmitted
* number of packets and bytes dropped
* retried number of packets and bytes
* rate info per ppdu

Firmware supports WMI_SERVICE_PEER_STATS, pktlog is enabled through
ATH10K_FLAG_PEER_STATS, which is nowadays enabled by default in ath10k.

This patch does not impact throughput.

Tested on QCA9880 with firmware version 10.2.4.70.48. This should also
work with firmware branch 10.2.4-1.0-00029

Parse peer stats from pktlog packets and update the tx rate information
per STA. This way user space can query about transmit rate with iw:

$iw wlan0 station dump
Station 3c:a9:f4:72:bb:a4 (on wlan1)
        inactive time:  8210 ms
        rx bytes:       9166
        rx packets:     44
        tx bytes:       1105
        tx packets:     9
        tx retries:     0
        tx failed:      1
        rx drop misc:   3
        signal:         -75 [-75, -87, -88] dBm
        signal avg:     -75 [-75, -85, -88] dBm
        tx bitrate:     39.0 MBit/s MCS 10
        rx bitrate:     26.0 MBit/s MCS 3
        rx duration:    23250 us
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       short
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    2
        beacon interval:100
        short preamble: yes
        short slot time:yes
        connected time: 22 seconds

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:26:41 +02:00
Anilkumar Kolli
7f9befbb55 ath10k: move pktlog_filter out of ath10k_debug
Move pktlog_filter from struct ath10k_debug to struct ath10k
so that pktlog can be enabled even when debugfs is not
enabled, needed to enable peer tx stats for 10.2.4.

No changes in functionality.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:26:34 +02:00
Anilkumar Kolli
6a7f891178 ath10k: remove MAC80211_DEBUGFS dependency on ath10k_sta_statistics
Remove CONFIG_MAC80211_DEBUGFS dependency on ath10k_sta_statistics().
ath10k_sta_statistics() has per sta tx/rx stats and this should not
be dependent on MAC80211_DEBUGFS.

No changes in functionality.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:26:27 +02:00
Rajkumar Manoharan
deba1b9ea6 ath10k: unify rx processing in napi_poll
With current NAPI implementation, NAPI poll can deliver more frames
to net core than allotted budget. This may cause warning in napi_poll.
Remaining quota is not accounted, while processing amsdus in
rx_in_ord_ind and rx_ind queue. Adding num_msdus at last can not
prevent delivering more frames to net core. With this change,
all amdus from both in_ord_ind and rx_ind queues are processed and
enqueued into common skb list instead of delivering into mac80211.
Later msdus from common queue are dequeued and delivered depends on
quota availability. This change also simplifies the rx processing in
napi poll routine.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:20:28 +02:00
Balaji Pothunoori
07ffb44973 ath10k: handling qos at STA side based on AP WMM enable/disable
Data packets are not sent by STA in case of STA joined to
non QOS AP (WMM disabled AP). This is happening because of STA
is sending data packets to firmware from host with qos enabled
along with non qos queue value(TID = 16).
Due to qos enabled, firmware is discarding the packet.

This patch fixes this issue by updating the qos based on station
WME capability field if WMM is disabled in AP.

This patch is required by 10.4 family chipsets like
QCA4019/QCA9888/QCA9884/QCA99X0.
Firmware Versoin : 10.4-3.5.1-00018.

For 10.2.4 family chipsets QCA988X/QCA9887 and QCA6174 this patch
has no effect.

Signed-off-by: Balaji Pothunoori <bpothuno@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-14 17:19:08 +02:00
Ben Greear
8cec57f527 ath10k: fix invalid STS_CAP_OFFSET_MASK
The 10.4 firmware defines this as a 3-bit field, as does the
mac80211 stack.  The 4th bit is defined as CONF_IMPLICIT_BF
at least in the firmware header I have seen.  This patch
fixes the ath10k wmi header to match the firmware.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-07 16:40:16 +02:00
Matthias Schiffer
42e01cb9cb ath10k: move spectral scan support under a separate config symbol
At the moment, spectral scan support, and with it RELAY, is always enabled
with ATH10K_DEBUGFS. Spectral scan support is currently the only user of
RELAY in ath10k, and it unconditionally reserves a relay channel.

Having debugfs support in ath10k is often useful even on very small
embedded routers, where we'd rather like to avoid the code size and RAM
usage of the relay support. While ath10k-based devices usually have more
resources than ath9k-based ones, it makes sense to keep the configuration
symmetric to ath9k, so the same base kernel without RELAY can be used for
both ath9k and ath10k hardware.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-07 16:32:03 +02:00
Arnd Bergmann
dafa420360 ath10k: use 64-bit crash dump timestamps
The dump format uses 64-bit timestamps already, but calling
getnstimeofday() only returns a 32-bit number on 32-bit architectures,
so that will overflow in y2038.

This changes it to use ktime_get_real_ts64() instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-07 16:23:16 +02:00
Manikanta Pubbisetty
8ed05ed06f ath10k: handle tdls peer events
Handle tdls peer events from the target. TDLS events for the peer
could be discover, teardown, etc. As of now, adding the logic to
handle tdls teardown events alone.

Teardown due to peer traffic indication(PTR) timeout is one such
teardown event from the target.

Tested this change on QCA9888 with 10.4-3.5.1-00018 fw version.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-02 16:15:49 +02:00
Manikanta Pubbisetty
424ea0d174 ath10k: update tdls teardown state to target
It is required to update the teardown state of the peer when
a tdls link with that peer is terminated. This information is
useful for the target to perform some cleanups wrt the tdls peer.

Without proper cleanup, target assumes that the peer is connected and
blocks future connection requests, updating the teardown state of the
peer addresses the problem.

Tested this change on QCA9888 with 10.4-3.5.1-00018 fw version.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-02 16:15:43 +02:00
Toke Høiland-Jørgensen
170e8e6176 ath10k: re-enable TXQs for all devices
Commit 4ca1807815 ("ath10k: disable wake_tx_queue for older devices")
disables the use of the mac80211 TXQs for some devices because of a theoretical
throughput regression. The original regression report[1] was related to
fq_codel qdisc drop performance, which was fixed in commit 9d18562a22
("fq_codel: add batch ability to fq_codel_drop()"). Since then, we have not
seen the TXQ-related regression, so it should be safe to re-enable TXQs.

[1] http://lists.infradead.org/pipermail/ath10k/2016-April/007266.html

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-02 16:14:19 +02:00
Vasanthakumar Thiagarajan
307aeb31af ath10k: fix data rx for CCMP-256, GCMP and GCMP-256 in raw mode
Make sure 16-byte mic is removed from the rx data packet
tail when CCMP-256, GCMP and GCMP-256 ciphers are used
in raw decap mode. This fixed rx traffic failures in those
ciphers in raw mode. Split the helper returning crypto
tail length into two, one to get the ICV length and other
to get the mic lengh for the cipher to make it clean.

Fixes: 2ea9f12cef ("ath10k: add new cipher suite support")
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-11-20 18:10:18 +02:00
David S. Miller
6e300769dc wireless-drivers-next patches for 4.15
Mostly fixes this time, but also few new features.
 
 Major changes:
 
 wil6210
 
 * remove ssid debugfs file
 
 rsi
 
 * add WOWLAN support for suspend, hibernate and shutdown states
 
 ath10k
 
 * add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
   where it's supported (QCA99x0 and QCA4019)
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Merge tag 'wireless-drivers-next-for-davem-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.15

Mostly fixes this time, but also few new features.

Major changes:

wil6210

* remove ssid debugfs file

rsi

* add WOWLAN support for suspend, hibernate and shutdown states

ath10k

* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
  where it's supported (QCA99x0 and QCA4019)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 18:07:50 +09:00
Linus Torvalds
ead751507d License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
 makes it harder for compliance tools to determine the correct license.
 
 By default all files without license information are under the default
 license of the kernel, which is GPL version 2.
 
 Update the files which contain no license information with the 'GPL-2.0'
 SPDX license identifier.  The SPDX identifier is a legally binding
 shorthand, which can be used instead of the full boiler plate text.
 
 This patch is based on work done by Thomas Gleixner and Kate Stewart and
 Philippe Ombredanne.
 
 How this work was done:
 
 Patches were generated and checked against linux-4.14-rc6 for a subset of
 the use cases:
  - file had no licensing information it it.
  - file was a */uapi/* one with no licensing information in it,
  - file was a */uapi/* one with existing licensing information,
 
 Further patches will be generated in subsequent months to fix up cases
 where non-standard license headers were used, and references to license
 had to be inferred by heuristics based on keywords.
 
 The analysis to determine which SPDX License Identifier to be applied to
 a file was done in a spreadsheet of side by side results from of the
 output of two independent scanners (ScanCode & Windriver) producing SPDX
 tag:value files created by Philippe Ombredanne.  Philippe prepared the
 base worksheet, and did an initial spot review of a few 1000 files.
 
 The 4.13 kernel was the starting point of the analysis with 60,537 files
 assessed.  Kate Stewart did a file by file comparison of the scanner
 results in the spreadsheet to determine which SPDX license identifier(s)
 to be applied to the file. She confirmed any determination that was not
 immediately clear with lawyers working with the Linux Foundation.
 
 Criteria used to select files for SPDX license identifier tagging was:
  - Files considered eligible had to be source code files.
  - Make and config files were included as candidates if they contained >5
    lines of source
  - File already had some variant of a license header in it (even if <5
    lines).
 
 All documentation files were explicitly excluded.
 
 The following heuristics were used to determine which SPDX license
 identifiers to apply.
 
  - when both scanners couldn't find any license traces, file was
    considered to have no license information in it, and the top level
    COPYING file license applied.
 
    For non */uapi/* files that summary was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0                                              11139
 
    and resulted in the first patch in this series.
 
    If that file was a */uapi/* path one, it was "GPL-2.0 WITH
    Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0 WITH Linux-syscall-note                        930
 
    and resulted in the second patch in this series.
 
  - if a file had some form of licensing information in it, and was one
    of the */uapi/* ones, it was denoted with the Linux-syscall-note if
    any GPL family license was found in the file or had no licensing in
    it (per prior point).  Results summary:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|------
    GPL-2.0 WITH Linux-syscall-note                       270
    GPL-2.0+ WITH Linux-syscall-note                      169
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
    LGPL-2.1+ WITH Linux-syscall-note                      15
    GPL-1.0+ WITH Linux-syscall-note                       14
    ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
    LGPL-2.0+ WITH Linux-syscall-note                       4
    LGPL-2.1 WITH Linux-syscall-note                        3
    ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
    ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
 
    and that resulted in the third patch in this series.
 
  - when the two scanners agreed on the detected license(s), that became
    the concluded license(s).
 
  - when there was disagreement between the two scanners (one detected a
    license but the other didn't, or they both detected different
    licenses) a manual inspection of the file occurred.
 
  - In most cases a manual inspection of the information in the file
    resulted in a clear resolution of the license that should apply (and
    which scanner probably needed to revisit its heuristics).
 
  - When it was not immediately clear, the license identifier was
    confirmed with lawyers working with the Linux Foundation.
 
  - If there was any question as to the appropriate license identifier,
    the file was flagged for further research and to be revisited later
    in time.
 
 In total, over 70 hours of logged manual review was done on the
 spreadsheet to determine the SPDX license identifiers to apply to the
 source files by Kate, Philippe, Thomas and, in some cases, confirmation
 by lawyers working with the Linux Foundation.
 
 Kate also obtained a third independent scan of the 4.13 code base from
 FOSSology, and compared selected files where the other two scanners
 disagreed against that SPDX file, to see if there was new insights.  The
 Windriver scanner is based on an older version of FOSSology in part, so
 they are related.
 
 Thomas did random spot checks in about 500 files from the spreadsheets
 for the uapi headers and agreed with SPDX license identifier in the
 files he inspected. For the non-uapi files Thomas did random spot checks
 in about 15000 files.
 
 In initial set of patches against 4.14-rc6, 3 files were found to have
 copy/paste license identifier errors, and have been fixed to reflect the
 correct identifier.
 
 Additionally Philippe spent 10 hours this week doing a detailed manual
 inspection and review of the 12,461 patched files from the initial patch
 version early this week with:
  - a full scancode scan run, collecting the matched texts, detected
    license ids and scores
  - reviewing anything where there was a license detected (about 500+
    files) to ensure that the applied SPDX license was correct
  - reviewing anything where there was no detection but the patch license
    was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
    SPDX license was correct
 
 This produced a worksheet with 20 files needing minor correction.  This
 worksheet was then exported into 3 different .csv files for the
 different types of files to be modified.
 
 These .csv files were then reviewed by Greg.  Thomas wrote a script to
 parse the csv files and add the proper SPDX tag to the file, in the
 format that the file expected.  This script was further refined by Greg
 based on the output to detect more types of files automatically and to
 distinguish between header and source .c files (which need different
 comment types.)  Finally Greg ran the script using the .csv files to
 generate the patches.
 
 Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
 Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
 Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull initial SPDX identifiers from Greg KH:
 "License cleanup: add SPDX license identifiers to some files

  Many source files in the tree are missing licensing information, which
  makes it harder for compliance tools to determine the correct license.

  By default all files without license information are under the default
  license of the kernel, which is GPL version 2.

  Update the files which contain no license information with the
  'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
  binding shorthand, which can be used instead of the full boiler plate
  text.

  This patch is based on work done by Thomas Gleixner and Kate Stewart
  and Philippe Ombredanne.

  How this work was done:

  Patches were generated and checked against linux-4.14-rc6 for a subset
  of the use cases:

   - file had no licensing information it it.

   - file was a */uapi/* one with no licensing information in it,

   - file was a */uapi/* one with existing licensing information,

  Further patches will be generated in subsequent months to fix up cases
  where non-standard license headers were used, and references to
  license had to be inferred by heuristics based on keywords.

  The analysis to determine which SPDX License Identifier to be applied
  to a file was done in a spreadsheet of side by side results from of
  the output of two independent scanners (ScanCode & Windriver)
  producing SPDX tag:value files created by Philippe Ombredanne.
  Philippe prepared the base worksheet, and did an initial spot review
  of a few 1000 files.

  The 4.13 kernel was the starting point of the analysis with 60,537
  files assessed. Kate Stewart did a file by file comparison of the
  scanner results in the spreadsheet to determine which SPDX license
  identifier(s) to be applied to the file. She confirmed any
  determination that was not immediately clear with lawyers working with
  the Linux Foundation.

  Criteria used to select files for SPDX license identifier tagging was:

   - Files considered eligible had to be source code files.

   - Make and config files were included as candidates if they contained
     >5 lines of source

   - File already had some variant of a license header in it (even if <5
     lines).

  All documentation files were explicitly excluded.

  The following heuristics were used to determine which SPDX license
  identifiers to apply.

   - when both scanners couldn't find any license traces, file was
     considered to have no license information in it, and the top level
     COPYING file license applied.

     For non */uapi/* files that summary was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0                                              11139

     and resulted in the first patch in this series.

     If that file was a */uapi/* path one, it was "GPL-2.0 WITH
     Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
     was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0 WITH Linux-syscall-note                        930

     and resulted in the second patch in this series.

   - if a file had some form of licensing information in it, and was one
     of the */uapi/* ones, it was denoted with the Linux-syscall-note if
     any GPL family license was found in the file or had no licensing in
     it (per prior point). Results summary:

       SPDX license identifier                            # files
       ---------------------------------------------------|------
       GPL-2.0 WITH Linux-syscall-note                       270
       GPL-2.0+ WITH Linux-syscall-note                      169
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
       LGPL-2.1+ WITH Linux-syscall-note                      15
       GPL-1.0+ WITH Linux-syscall-note                       14
       ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
       LGPL-2.0+ WITH Linux-syscall-note                       4
       LGPL-2.1 WITH Linux-syscall-note                        3
       ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
       ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

     and that resulted in the third patch in this series.

   - when the two scanners agreed on the detected license(s), that
     became the concluded license(s).

   - when there was disagreement between the two scanners (one detected
     a license but the other didn't, or they both detected different
     licenses) a manual inspection of the file occurred.

   - In most cases a manual inspection of the information in the file
     resulted in a clear resolution of the license that should apply
     (and which scanner probably needed to revisit its heuristics).

   - When it was not immediately clear, the license identifier was
     confirmed with lawyers working with the Linux Foundation.

   - If there was any question as to the appropriate license identifier,
     the file was flagged for further research and to be revisited later
     in time.

  In total, over 70 hours of logged manual review was done on the
  spreadsheet to determine the SPDX license identifiers to apply to the
  source files by Kate, Philippe, Thomas and, in some cases,
  confirmation by lawyers working with the Linux Foundation.

  Kate also obtained a third independent scan of the 4.13 code base from
  FOSSology, and compared selected files where the other two scanners
  disagreed against that SPDX file, to see if there was new insights.
  The Windriver scanner is based on an older version of FOSSology in
  part, so they are related.

  Thomas did random spot checks in about 500 files from the spreadsheets
  for the uapi headers and agreed with SPDX license identifier in the
  files he inspected. For the non-uapi files Thomas did random spot
  checks in about 15000 files.

  In initial set of patches against 4.14-rc6, 3 files were found to have
  copy/paste license identifier errors, and have been fixed to reflect
  the correct identifier.

  Additionally Philippe spent 10 hours this week doing a detailed manual
  inspection and review of the 12,461 patched files from the initial
  patch version early this week with:

   - a full scancode scan run, collecting the matched texts, detected
     license ids and scores

   - reviewing anything where there was a license detected (about 500+
     files) to ensure that the applied SPDX license was correct

   - reviewing anything where there was no detection but the patch
     license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
     applied SPDX license was correct

  This produced a worksheet with 20 files needing minor correction. This
  worksheet was then exported into 3 different .csv files for the
  different types of files to be modified.

  These .csv files were then reviewed by Greg. Thomas wrote a script to
  parse the csv files and add the proper SPDX tag to the file, in the
  format that the file expected. This script was further refined by Greg
  based on the output to detect more types of files automatically and to
  distinguish between header and source .c files (which need different
  comment types.) Finally Greg ran the script using the .csv files to
  generate the patches.

  Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
  Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
  Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  License cleanup: add SPDX license identifier to uapi header files with a license
  License cleanup: add SPDX license identifier to uapi header files with no license
  License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 10:04:46 -07:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Kalle Valo
e48e9c429a Revert "ath10k: fix napi_poll budget overflow"
Thorsten reported on <fa6e3ee2-91b5-a54b-afe3-87f30aac7a48@leemhuis.info> that
commit c9353bf483 made ath10k unstable with QCA6174 on his Dell XPS13 (9360)
with an error message:

ath10k_pci 0000:3a:00.0: failed to extract amsdu: -11

It only seemed to happen with certain APs, not all, but when it happened the
only way to get ath10k working was to switch the wifi off and on with a hotkey.

As this commit made things even worse (a warning vs breaking the whole
connection) let's revert the commit for now and while the issue is being fixed.

Link: http://lists.infradead.org/pipermail/ath10k/2017-October/010227.html
Reported-by: Thorsten Leemhuis <linux@leemhuis.info>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-30 10:39:42 +02:00
Vasanthakumar Thiagarajan
7eccb738fc ath10k: rebuild crypto header in rx data frames
Rx data frames notified through HTT_T2H_MSG_TYPE_RX_IND and
HTT_T2H_MSG_TYPE_RX_FRAG_IND expect PN/TSC check to be done
on host (mac80211) rather than firmware. Rebuild cipher header
in every received data frames (that are notified through those
HTT interfaces) from the rx_hdr_status tlv available in the
rx descriptor of the first msdu. Skip setting RX_FLAG_IV_STRIPPED
flag for the packets which requires mac80211 PN/TSC check support
and set appropriate RX_FLAG for stripped crypto tail. Hw QCA988X,
QCA9887, QCA99X0, QCA9984, QCA9888 and QCA4019 currently need the
rebuilding of cipher header to perform PN/TSC check for replay
attack.

Please note that removing crypto tail for CCMP-256, GCMP and GCMP-256 ciphers
in raw mode needs to be fixed. Since Rx with these ciphers in raw
mode does not work in the current form even without this patch and
removing crypto tail for these chipers needs clean up, raw mode related
issues in CCMP-256, GCMP and GCMP-256 can be addressed in follow up
patches.

Tested-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-30 10:36:57 +02:00
Kees Cook
7ac767645a ath: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:54:19 +03:00
Christos Gkekas
d83c0d3293 ath10k: spectral: remove redundant check in write_file_spectral_count()
Variable val is unsigned, so checking whether it is less than zero is
redundant.

Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:48:50 +03:00
Anilkumar Kolli
e5b6853e99 ath10k: fix sending wmi cmd during the tdls teardown
The current firmware 10.4-3.5.1-00035 on QCA9888 supports
TDLS explicit mode, it expects WMI_TDLS_ENABLE_PASSIVE
for tdls setup and WMI_TDLS_DISABLE for tdls teardown.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:47:50 +03:00
Anilkumar Kolli
a60809313b ath10k: block offchannel operations if TDLS session is active
Do not allow off channel operations like scans/roc when
there are active TDLS sessions.

The Current firmware 10.4-3.5.1-00035 on QCA9888 does not
supports any offchannel operations on active TDLS sessions,
either driver needs to block the offchannel operation requests
or should teardown the TDLS connection.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:45:47 +03:00
Anilkumar Kolli
dd0f9cd6bc ath10k: move ath10k_mac_tdls_vif*() functions
To be able to use ath10k_mac_tdls_vif_stations_count() in
ath10k_hw_scan() in the following patch, move the functions
earlier in the file.

This commit is pure code move, no functional changes.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:45:41 +03:00
Brian Norris
20665a9076 ath10k: fix build errors with !CONFIG_PM
Build errors have been reported with CONFIG_PM=n:

drivers/net/wireless/ath/ath10k/pci.c:3416:8: error: implicit
declaration of function 'ath10k_pci_suspend'
[-Werror=implicit-function-declaration]

drivers/net/wireless/ath/ath10k/pci.c:3428:8: error: implicit
declaration of function 'ath10k_pci_resume'
[-Werror=implicit-function-declaration]

These are caused by the combination of the following two commits:

6af1de2e4e ("ath10k: mark PM functions as __maybe_unused")
96378bd2c6 ("ath10k: fix core PCI suspend when WoWLAN is supported but
disabled")

Both build fine on their own.

But now that ath10k_pci_pm_{suspend,resume}() is compiled
unconditionally, we should also compile ath10k_pci_{suspend,resume}()
unconditionally.

And drop the #ifdef around ath10k_pci_hif_{suspend,resume}() too; they
are trivial (empty), so we're not saving much space by compiling them
out. And the alternatives would be to sprinkle more __maybe_unused, or
spread the #ifdef's further.

Build tested with the following combinations:
CONFIG_PM=y && CONFIG_PM_SLEEP=y
CONFIG_PM=y && CONFIG_PM_SLEEP=n
CONFIG_PM=n

Fixes: 96378bd2c6 ("ath10k: fix core PCI suspend when WoWLAN is supported but disabled")
Fixes: 096ad2a15fd8 ("Merge branch 'ath-next'")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-27 16:44:20 +03:00
Kalle Valo
5a63b04ed5 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.15. Major changes:

ath10k

* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
  there it's supported (QCA99x0 and QCA4019)
2017-10-27 11:09:14 +03:00
Ben Greear
0a590a3877 ath10k: store coverage-class in case firmware is not booted
This way, we can apply the values when the NIC does come up.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-13 15:08:19 +03:00
Rajkumar Manoharan
2ea9f12cef ath10k: add new cipher suite support
QCA99x0 and QCA4019 family chips support CCMP-256, GCMP-128, and
GCMP-256 ciphers in hardware, so advertise support for these. As
firmware does not support group management frame ciphers (BIP),
handle them in software (mac80211).

Reviewed-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-13 14:40:06 +03:00
Venkateswara Naralasetty
36d9cdb6fb ath10k: check power save support in STA mode through FW IE
Currently ath10k host enables power save support in station mode by
default for all firmwares but Power save for station mode still not supported
in some of the firmware versions. Which results in firmware crash while
issueing multiple scan commands.

Fix this problem by introducing new FW feature flag to check power save
support in firmware and then the firmware image can tell to ath10k that power
save mode is not supported in station mode.

Signed-off-by: Venkateswara Naralasetty <vnaralas@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-13 14:38:09 +03:00
Brian Norris
96378bd2c6 ath10k: fix core PCI suspend when WoWLAN is supported but disabled
For devices where the FW supports WoWLAN but user-space has not
configured it, we don't do any PCI-specific suspend/resume operations,
because mac80211 doesn't call drv_suspend() when !wowlan. This has
particularly bad effects for some platforms, because we don't stop the
power-save timer, and if this timer goes off after the PCI controller
has suspended the link, Bad Things will happen.

Commit 32faa3f0ee ("ath10k: add the PCI PM core suspend/resume ops")
got some of this right, in that it understood there was a problem on
non-WoWLAN firmware. But it forgot the $subject case.

Fix this by moving all the PCI driver suspend/resume logic exclusively
into the driver PM hooks. This shouldn't affect WoWLAN support much
(this just gets executed later on).

I would just as well kill the entirety of ath10k_hif_suspend(), as it's
not even implemented on the USB or SDIO drivers. I expect that we don't
need the callback, except to return "supported" (i.e., 0) or "not
supported" (i.e., -EOPNOTSUPP).

Fixes: 32faa3f0ee ("ath10k: add the PCI PM core suspend/resume ops")
Fixes: 77258d409c ("ath10k: enable pci soc powersaving")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Cc: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-10-13 14:37:03 +03:00
Bhumika Goyal
496cbf3ebb ath10k: make ath10k_hw_ce_regs const
Make them const as they are not modified in the file referencing
them. They are only stored in the const field 'hw_ce_reg' of an ath10k
structure. Also, make the declarations in the header const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-09-25 10:15:45 +03:00
Arnd Bergmann
6af1de2e4e ath10k: mark PM functions as __maybe_unused
When CONFIG_PM_SLEEP is disabled, we get a compile-time
warning:

drivers/net/wireless/ath/ath10k/pci.c:3417:12: error: 'ath10k_pci_pm_resume' defined but not used [-Werror=unused-function]
 static int ath10k_pci_pm_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath10k/pci.c:3401:12: error: 'ath10k_pci_pm_suspend' defined but not used [-Werror=unused-function]
 static int ath10k_pci_pm_suspend(struct device *dev)

Rather than fixing the #ifdef, this just marks both functions
as __maybe_unused, which is a more robust way to do this.

Fixes: 32faa3f0ee ("ath10k: add the PCI PM core suspend/resume ops")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-09-21 18:01:30 +03:00
Ryan Hsu
393b706cf2 ath10k: configure and enable the wakeup capability
ACPI will rely on device driver to tell it if the device could support
wakeup function when system in D3 state.

This has caused some platform can't support remote wakeup correctly,
because the ACPI wakeup GPE is not enabled, hence registers the .set_wakeup
callback to handle it if device supports wakeup.

Tested with QCA6174 hw3.0, firmware ('WLAN.RM.4.4.1-00008-QCARMSWP-1')

Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 21:17:04 +03:00
Ryan Hsu
32faa3f0ee ath10k: add the PCI PM core suspend/resume ops
The actual PCI suspend/resume in ath10k has been handled in wow.c,
but in the case of the device doesn't support remote wakeup,
the .hif_suspend() and .hif_resume() will never be handled.

  ath10k_wow_op_suspend()
  {
	if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
		    ar->running_fw->fw_file.fw_features))) {
		ret = 1;
		goto exit;
	}

	....

	ret = ath10k_hif_suspend(ar);
  }

So register the PCI PM core to support the suspend/resume if the device
doesn't support remote wakeup.

Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 21:16:56 +03:00
Hauke Mehrtens
c0cc00f250 ath10k: activate user space firmware loading again
In commit 9f5bcfe933 ("ath10k: silence firmware file probing
warnings") the firmware loading was changed from request_firmware() to
request_firmware_direct() to silence some warnings in case it fails.
request_firmware_direct() directly searches in the file system only and
does not send a hotplug event to user space in case it could not find
the firmware directly.
In LEDE we use a user space script to extract the calibration data from
the flash memory which gets triggered by the hotplug event. This way the
firmware gets extracted from some vendor specific partition when the
driver requests this firmware. This mechanism does not work any more
after this change.

Fixes: 9f5bcfe933 ("ath10k: silence firmware file probing warnings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:15:15 +03:00
Erik Stromdahl
30b83fff6d ath10k: sdio: remove unused struct member
irq_wq in struct ath10k_sdio is a remnant from an earlier
version of the sdio patchset.

Its use was removed as a result of Kalle's review, but somehow
the struct member survived.

It is not used and can therefore safely be removed.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:14:18 +03:00
Ryan Hsu
c9353bf483 ath10k: fix napi_poll budget overflow
In napi_poll, the budget number is used to control the amount of packets
we should handle per poll to balance the resource in the system.

In the list of the amsdu packets reception, we check if there is budget
count left and handle the complete list of the packets, that it will have
chances the very last list will over the budget leftover.

So adding one more parameter - budget_left, this would help while
traversing the list to avoid handling more than the budget given.

Reported-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Fix-suggested-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Link: https://lkml.kernel.org/r/26670dce-4dd2-f8e4-0e14-90d74257e739@virtuozzo.com
Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:13:18 +03:00
Andy Shevchenko
ab3f9c8868 ath10k: switch to use new generic UUID API
There are new types and helpers that are supposed to be used in new code.

As a preparation to get rid of legacy types and API functions do
the conversion here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-08 14:07:33 +03:00
Rakesh Pillai
f35a7f91f6 ath10k: fix memory leak in rx ring buffer allocation
The rx ring buffers are added to a hash table if
firmware support full rx reorder. If the full rx
reorder support flag is not set before allocating
the rx ring buffers, none of the buffers are added
to the hash table.

There is a race condition between rx ring refill and
rx buffer replenish from napi poll. The interrupts are
enabled in hif start, before the rx ring is refilled during init.
We replenish buffers from napi poll due to the interrupts which
get enabled after hif start. Hence before the entire rx ring is
refilled during the init, the napi poll replenishes a few buffers
in steps of 100 buffers per attempt. During this rx ring replenish
from napi poll, the rx reorder flag has not been set due to which
the replenished buffers are not added to the hash table

Set the rx full reorder support flag before we allocate
the rx ring buffer to avoid the memory leak.

Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-08 14:06:42 +03:00
Gabriel Craciunescu
984eb90532 ath10k: ath10k_htt_rx_amsdu_allowed() use ath10k_dbg()
Each time we get disconnected from AP we get flooded with messages like:

...
ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
<until ratelimit kicks in>
ath10k_warn: 155 callbacks suppressed
...

Use ath10k_dbg() here too.

Signed-off-by: Gabriel Craciunescu <nix.or.die@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-08 14:05:49 +03:00
Philipp Zabel
a764284f34 ath10k: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-03 14:37:49 +03:00
Manikanta Pubbisetty
be5b4f4002 ath10k: push peer type to target for TDLS peers
WMI interface for all the firmwares(except QCA6174) does not include the
type of peer(default/bss/tdls) requested during peer creation, therefore
target creates a default peer.

TDLS implementation on 10.4 firmware requires host to configure the
peer type(tdls) for TDLS peers. This patch adds peer type parameter to the
existing WMI interface for peer creation to accommodate this requirement.

Tested this change on QCA9888(10.4-3.5.1-00018) and QCA988x(10.2.4.70.9-2)
with ping tests for AP/STA modes.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-03 14:36:40 +03:00
Manikanta Pubbisetty
add6cd8d5a ath10k: add tdls support for 10.4 firmwares
This patch adds the support of TDLS feature for 10.4 firmware
versions.

A new WMI service is added to advertise the support of TDLS for
10.4 firmwares.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-03 14:36:35 +03:00
Manikanta Pubbisetty
810fe818d6 ath10k: extend wmi service map to accommodate new services
Though there is room to accommodate 512 services in wmi service
ready event, target uses only first 4-bits of each 32-bit word for
advertising wmi services thereby limiting max wmi services to 64.

TDLS implementation for 10.4 firmwares introduces new wmi services by
making use of remaining unused bits of each 32-bit word, therefore the
wmi service mapping in host needs to be extended.

This patch adds the logic to extend the wmi SVCMAP to accommodate new
wmi services.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-03 14:36:29 +03:00
Erik Stromdahl
433ef1b226 ath10k: sdio: fix compile warning
As suggested by Arnd Bergmann, replace
"while (time_before_...) {}"
with
"do {} while (time_before_...)"

This fixes the following warnings detected by gcc 4.1.2:

drivers/net/wireless/ath/ath10k/sdio.c: In function
‘ath10k_sdio_mbox_rxmsg_pending_handler’:
drivers/net/wireless/ath/ath10k/sdio.c:676: warning: ‘ret’ may be used uninitialized in this function

...

drivers/net/wireless/ath/ath10k/sdio.c: In function
‘ath10k_sdio_irq_handler’:
drivers/net/wireless/ath/ath10k/sdio.c:1331: warning: ‘ret’ may be used uninitialized in this function

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-03 14:34:49 +03:00