platform/kernel/linux-starfive.git
4 years agoath11k: Use fallthrough pseudo-keyword
Gustavo A. R. Silva [Mon, 27 Jul 2020 19:44:15 +0000 (14:44 -0500)]
ath11k: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727194415.GA1275@embeddedor
4 years agoath11k: Fix possible memleak in ath11k_qmi_init_service
Wang Yufen [Mon, 20 Jul 2020 09:36:44 +0000 (17:36 +0800)]
ath11k: Fix possible memleak in ath11k_qmi_init_service

When qmi_add_lookup fail, we should destroy the workqueue

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595237804-66297-1-git-send-email-wangyufen@huawei.com
4 years agoath10k: fix VHT NSS calculation when STBC is enabled
Sathishkumar Muruganandam [Fri, 14 Aug 2020 08:16:11 +0000 (13:46 +0530)]
ath10k: fix VHT NSS calculation when STBC is enabled

When STBC is enabled, NSTS_SU value need to be accounted for VHT NSS
calculation for SU case.

Without this fix, 1SS + STBC enabled case was reported wrongly as 2SS
in radiotap header on monitor mode capture.

Tested-on: QCA9984 10.4-3.10-00047

Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597392971-3897-1-git-send-email-murugana@codeaurora.org
4 years agoath10k: Register shutdown handler
Rakesh Pillai [Fri, 26 Jun 2020 17:53:01 +0000 (23:23 +0530)]
ath10k: Register shutdown handler

As a part of device shutdown the smmu driver will be
stopped and henceforth any IOVA address translation
will not be done. The wlan driver, being one of the
smmu driver consumer, should stop all the dma related
activity as a part of shutdown, and thereby ensuring
that no dma activity is done once the smmu driver
shuts down.

During the device shutdown, the smmu calls shutdown
for all its consumers in order to indicate them to
stop all their dma activities.

Register the shutdown handler to stop the wlan
driver and avoid any dma operations.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1593193981-30161-1-git-send-email-pillair@codeaurora.org
4 years agoath11k: reset MHI during power down and power up
Carl Huang [Mon, 17 Aug 2020 10:31:55 +0000 (13:31 +0300)]
ath11k: reset MHI during power down and power up

For QCA6390, normal power up and power down can't bring MHI
to a workable state. This happens especially in warm reboot
and rmmod and insmod. Host needs to write a few registers to
bring MHI to normal state.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeauroro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-10-git-send-email-kvalo@codeaurora.org
4 years agoath11k: use TCL_DATA_RING_0 for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:55 +0000 (13:31 +0300)]
ath11k: use TCL_DATA_RING_0 for QCA6390

For QCA6390, wbm2sw1 is used for other purpose rather than
tx completion ring. So use TCL_DATA_RING 0 only for QCA6390.

Add MISC_CAPS_TCL_0_ONLY to control it.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-9-git-send-email-kvalo@codeaurora.org
4 years agoath11k: process both lmac rings for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:54 +0000 (13:31 +0300)]
ath11k: process both lmac rings for QCA6390

For QCA6390, the num_radios is 1 but it needs to process 2 lmac rings.
So use NUM_RXDMA_PER_PDEV to do another loop.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-8-git-send-email-kvalo@codeaurora.org
4 years agoath11k: assign correct search flag and type for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:54 +0000 (13:31 +0300)]
ath11k: assign correct search flag and type for QCA6390

QCA6390 doesn't enable V2 map and ummap event, so the addr search
flags and type is different from IPQ8074. Assign correct search flags
and type for QCA6390.

Without this change, ping sometimes fails. With this change, now ping
is always successful.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-7-git-send-email-kvalo@codeaurora.org
4 years agoath11k: delay vdev_start for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:53 +0000 (13:31 +0300)]
ath11k: delay vdev_start for QCA6390

For QCA6390 firmware, bss peer must be created before vdev_start, so delay
vdev_start until bss peer is created.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-6-git-send-email-kvalo@codeaurora.org
4 years agoath11k: refine the phy_id check in ath11k_reg_chan_list_event
Carl Huang [Mon, 17 Aug 2020 10:31:53 +0000 (13:31 +0300)]
ath11k: refine the phy_id check in ath11k_reg_chan_list_event

For QCA6390, it processes the reg chan list event only for phy0,
and it goes to fallback if the phy_id is not valid. For a valid
phy_id but not 0, just discard the event.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-5-git-send-email-kvalo@codeaurora.org
4 years agoath11k: setup QCA6390 rings for both rxdmas
Carl Huang [Mon, 17 Aug 2020 10:31:53 +0000 (13:31 +0300)]
ath11k: setup QCA6390 rings for both rxdmas

For QCA6390, only one pdev is created and this pdev manages both lmacs, thus
both rxdmas. So host needs to initialize all rxdma related rings for one pdev.

Another difference is for QCA6390, host fills rxbuf to firmware and firmware
further fills the rxbuf to rxbuf ring for each rxdma.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-4-git-send-email-kvalo@codeaurora.org
4 years agoath11k: don't initialize rxdma1 related ring
Carl Huang [Mon, 17 Aug 2020 10:31:52 +0000 (13:31 +0300)]
ath11k: don't initialize rxdma1 related ring

For QCA6390, it has 2 lmacs and thus 2 rxdmas. However, each rxdma has rxdma0
only, and doesn't have rxdma1. So for QCA6390, don't initialize rxdma1 related
rings such as rx_mon_buf_ring, rx_mon_dst_ring and rx_mon_desc_ring.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-3-git-send-email-kvalo@codeaurora.org
4 years agoath11k: enable DP interrupt setup for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:52 +0000 (13:31 +0300)]
ath11k: enable DP interrupt setup for QCA6390

QCA6390 uses MSI interrupt, so need to configure msi_add and
msi_data to dp srngs. As there are so many DP srngs, so need
to group them. Each group shares one MSI interrupt.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597555891-26112-2-git-send-email-kvalo@codeaurora.org
4 years agoath11k: dp: redefine peer_map and peer_unmap
Carl Huang [Mon, 17 Aug 2020 10:31:52 +0000 (13:31 +0300)]
ath11k: dp: redefine peer_map and peer_unmap

For QCA6390, it uses peer_map and peer_unmap V1. IPQ8074 uses V2.
Redefine previous definition to peer_map2 and peer_unmap2.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-13-git-send-email-kvalo@codeaurora.org
4 years agoath11k: wmi: put hardware to DBS mode
Carl Huang [Mon, 17 Aug 2020 10:31:51 +0000 (13:31 +0300)]
ath11k: wmi: put hardware to DBS mode

For QCA6390, host puts hardware to Dual Band Simultaneous (DBS) mode by default
so both 2G and 5G bands can be used. Otherwise only the 5G band can be used.
QCA6390 doesn't provide band_to_mac configuration and firmware will do the
band_to_mac map.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-12-git-send-email-kvalo@codeaurora.org
4 years agoath11k: initialize wmi config based on hw_params
Carl Huang [Mon, 17 Aug 2020 10:31:51 +0000 (13:31 +0300)]
ath11k: initialize wmi config based on hw_params

QCA6390 has very different wmi config parameters compared to IPQ8074,
so use different function to initialize wmi init config parameters.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-11-git-send-email-kvalo@codeaurora.org
4 years agoath11k: force single pdev only for QCA6390
Carl Huang [Mon, 17 Aug 2020 10:31:50 +0000 (13:31 +0300)]
ath11k: force single pdev only for QCA6390

For QCA6390, only one pdev is created and only one HW is registered to
mac80211. This one pdev manages both 2G radio and 5G radio.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-10-git-send-email-kvalo@codeaurora.org
4 years agoath11k: disable CE interrupt before hif start
Carl Huang [Mon, 17 Aug 2020 10:31:50 +0000 (13:31 +0300)]
ath11k: disable CE interrupt before hif start

Disable CE interrupt otherwise interrupt may come before host
initialized related context. This also fixes unbalanced interrupt
enablement.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-9-git-send-email-kvalo@codeaurora.org
4 years agoath11k: ce: get msi_addr and msi_data before srng setup
Carl Huang [Mon, 17 Aug 2020 10:31:50 +0000 (13:31 +0300)]
ath11k: ce: get msi_addr and msi_data before srng setup

Move function to get msi_addr and msi_data before srng setup,
otherwise srng is setup with no MSI configuration.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-8-git-send-email-kvalo@codeaurora.org
4 years agoath11k: hal: assign msi_addr and msi_data to srng
Carl Huang [Mon, 17 Aug 2020 10:31:49 +0000 (13:31 +0300)]
ath11k: hal: assign msi_addr and msi_data to srng

QCA6390 uses MSI interrupt so it needs msi_addr and msi_data
to generate interrupt.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-7-git-send-email-kvalo@codeaurora.org
4 years agoath11k: ce: remove CE_COUNT() macro
Kalle Valo [Mon, 17 Aug 2020 10:31:48 +0000 (13:31 +0300)]
ath11k: ce: remove CE_COUNT() macro

This macro is evil as it's accesses ab variable in a hidden way. It's better
for readibility to access ab->hw_params.ce_count directly.

This is done in a separate patch to keep the patches simple. No functional changes.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-6-git-send-email-kvalo@codeaurora.org
4 years agoath11k: ce: remove host_ce_config_wlan macro
Kalle Valo [Mon, 17 Aug 2020 10:31:47 +0000 (13:31 +0300)]
ath11k: ce: remove host_ce_config_wlan macro

This macro is evil as it's accesses ab variable in a hidden way. It's better
for readibility to access ab->hw_params.host_ce_config directly.

This is done in a separate patch to keep the patches simple. No functional changes.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-5-git-send-email-kvalo@codeaurora.org
4 years agoath11k: ce: support different CE configurations
Carl Huang [Mon, 17 Aug 2020 10:31:47 +0000 (13:31 +0300)]
ath11k: ce: support different CE configurations

QCA6390 uses only 9 Copy Engines while IPQ8074 may use 12, make it possible to
change CE configuration dynamically via hw_params.

The defines for host_ce_config_wlan and CE_COUNT are temporary solutions, they
will be removed in the following patches to keep things simple.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-4-git-send-email-kvalo@codeaurora.org
4 years agoath11k: hal: cleanup dynamic register macros
Kalle Valo [Mon, 17 Aug 2020 10:31:47 +0000 (13:31 +0300)]
ath11k: hal: cleanup dynamic register macros

Now some of the HAL register macros access ab variable in a hidden way, make ab
variable visible in the macro by adding it as an argument.

This is done in a separate patch to keep the patches simple. No functional changes.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-3-git-send-email-kvalo@codeaurora.org
4 years agoath11k: hal: create register values dynamically
Carl Huang [Mon, 17 Aug 2020 10:31:46 +0000 (13:31 +0300)]
ath11k: hal: create register values dynamically

QCA6390 has different register offset compared to IPQ8074, so need to
attach the register offset dynamically based on hw_params.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-2-git-send-email-kvalo@codeaurora.org
4 years agoath10k: move enable_pll_clk call to ath10k_core_start()
Kalle Valo [Mon, 17 Aug 2020 10:31:40 +0000 (13:31 +0300)]
ath10k: move enable_pll_clk call to ath10k_core_start()

There's no reason to have call for enable_pll_clk in ath10k_bmi_start(), move
it to ath10k_core_start() instead. This way it's possible to call
ath10k_bmi_start() from sdio.c during firmware dump creation. And also the
function call is more visible when it's in core.c.

No functional changes, compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597421745-4329-1-git-send-email-kvalo@codeaurora.org
4 years agowcn36xx: Fix reported 802.11n rx_highest rate wcn3660/wcn3680
Bryan O'Donoghue [Sun, 2 Aug 2020 00:48:24 +0000 (01:48 +0100)]
wcn36xx: Fix reported 802.11n rx_highest rate wcn3660/wcn3680

Qualcomm's document "80-WL007-1 Rev. J" states that the highest rx rate for
the WCN3660 and WCN3680 on MCS 7 is 150 Mbps not the 72 Mbps stated here.

This patch fixes the data-rate declared in the 5GHz table.

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680
hardware")

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200802004824.1307124-1-bryan.odonoghue@linaro.org
4 years agoath10k: Fix the size used in a 'dma_free_coherent()' call in an error handling path
Christophe JAILLET [Sun, 2 Aug 2020 12:22:27 +0000 (14:22 +0200)]
ath10k: Fix the size used in a 'dma_free_coherent()' call in an error handling path

Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()'.

Fixes: 1863008369ae ("ath10k: fix shadow register implementation for WCN3990")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200802122227.678637-1-christophe.jaillet@wanadoo.fr
4 years agoath10k: Use fallthrough pseudo-keyword
Gustavo A. R. Silva [Mon, 27 Jul 2020 19:38:21 +0000 (14:38 -0500)]
ath10k: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727193821.GA981@embeddedor
4 years agoath9k: Fix potential out of bounds in ath9k_htc_txcompletion_cb()
Dan Carpenter [Thu, 13 Aug 2020 14:12:53 +0000 (17:12 +0300)]
ath9k: Fix potential out of bounds in ath9k_htc_txcompletion_cb()

The value of "htc_hdr->endpoint_id" comes from skb->data so Smatch marks
it as untrusted so we have to check it before using it as an array
offset.

This is similar to a bug that syzkaller found in commit e4ff08a4d727
("ath9k: Fix use-after-free Write in ath9k_htc_rx_msg") so it is
probably a real issue.

Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200813141253.GA457408@mwanda
4 years agoath9k_htc: Use appropriate rs_datalen type
Masashi Honma [Sat, 8 Aug 2020 23:32:58 +0000 (08:32 +0900)]
ath9k_htc: Use appropriate rs_datalen type

kernel test robot says:
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: warning: incorrect type in assignment (different base types)
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse:    expected restricted __be16 [usertype] rs_datalen
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse:    got unsigned short [usertype]
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:988:13: sparse: warning: restricted __be16 degrades to integer
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1001:13: sparse: warning: restricted __be16 degrades to integer

Indeed rs_datalen has host byte order, so modify it's own type.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: cd486e627e67 ("ath9k_htc: Discard undersized packets")
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200808233258.4596-1-masashi.honma@gmail.com
4 years agoath9k: add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support
Alexander Wetzel [Tue, 4 Aug 2020 16:41:51 +0000 (18:41 +0200)]
ath9k: add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support

The ath9k driver was so far only able to rekey PTK0 keys correctly due
to the best effort queue flush added with commit 62872a9b9a10
("mac80211: Fix PTK rekey freezes and clear text leak").

Add the needed queue flush and set NL80211_EXT_FEATURE_CAN_REPLACE_PTK0
to tell mac80211 that the driver can now rekey PTK0 keys correctly and
no longer needs the best effort flush.

Effectively this prevents mac80211 to warn when rekeying a PTK0 key
only.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200804164152.175375-1-alexander@wetzel-home.de
4 years agoath6kl: prevent potential array overflow in ath6kl_add_new_sta()
Dan Carpenter [Thu, 13 Aug 2020 14:13:15 +0000 (17:13 +0300)]
ath6kl: prevent potential array overflow in ath6kl_add_new_sta()

The value for "aid" comes from skb->data so Smatch marks it as
untrusted.  If it's invalid then it can result in an out of bounds array
access in ath6kl_add_new_sta().

Fixes: 572e27c00c9d ("ath6kl: Fix AP mode connect event parsing and TIM updates")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200813141315.GB457408@mwanda
4 years agoath6kl: fix spelling mistake "initilisation" -> "initialization"
Colin Ian King [Thu, 6 Aug 2020 12:19:58 +0000 (13:19 +0100)]
ath6kl: fix spelling mistake "initilisation" -> "initialization"

There is a spelling mistake in an ath6kl_err error message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200806121958.60700-1-colin.king@canonical.com
4 years agoath6kl: Use fallthrough pseudo-keyword
Gustavo A. R. Silva [Mon, 27 Jul 2020 19:51:11 +0000 (14:51 -0500)]
ath6kl: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727195111.GA1603@embeddedor
4 years agoath5k: Fix kerneldoc formatting issue
Lee Jones [Fri, 14 Aug 2020 11:39:23 +0000 (12:39 +0100)]
ath5k: Fix kerneldoc formatting issue

Kerneldoc expects attributes/parameters to be in '@*.: ' format and
gets confused if the variable does not follow the type/attribute
definitions.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath5k/base.c:1111: warning: Function parameter or member 'ah' not described in 'ath5k_drain_tx_buffs'

Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jesper Dangaard Brouer <hawk@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: "Luis R. Rodriguez" <mcgrof@winlab.rutgers.edu>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200814113933.1903438-21-lee.jones@linaro.org
4 years agowil6210: Demote non-kerneldoc headers to standard comment blocks
Lee Jones [Fri, 14 Aug 2020 11:39:16 +0000 (12:39 +0100)]
wil6210: Demote non-kerneldoc headers to standard comment blocks

No effort has been made to document any of the function parameters here.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/cfg80211.c:1749: warning: Function parameter or member 'ies' not described in '_wil_cfg80211_find_ie'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1749: warning: Function parameter or member 'ies_len' not described in '_wil_cfg80211_find_ie'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1749: warning: Function parameter or member 'ie' not described in '_wil_cfg80211_find_ie'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1749: warning: Function parameter or member 'ie_len' not described in '_wil_cfg80211_find_ie'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'ies1' not described in '_wil_cfg80211_merge_extra_ies'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'ies1_len' not described in '_wil_cfg80211_merge_extra_ies'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'ies2' not described in '_wil_cfg80211_merge_extra_ies'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'ies2_len' not described in '_wil_cfg80211_merge_extra_ies'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'merged_ies' not described in '_wil_cfg80211_merge_extra_ies'
 drivers/net/wireless/ath/wil6210/cfg80211.c:1780: warning: Function parameter or member 'merged_len' not described in '_wil_cfg80211_merge_extra_ies'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200814113933.1903438-14-lee.jones@linaro.org
4 years agoath5k: pcu: Add a description for 'band' remove one for 'mode'
Lee Jones [Fri, 14 Aug 2020 11:39:12 +0000 (12:39 +0100)]
ath5k: pcu: Add a description for 'band' remove one for 'mode'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath5k/pcu.c:115: warning: Function parameter or member 'band' not described in 'ath5k_hw_get_frame_duration'
 drivers/net/wireless/ath/ath5k/pcu.c:955: warning: Excess function parameter 'mode' description in 'ath5k_hw_pcu_init'

Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Reyk Floeter <reyk@openbsd.org>
Cc: "W. S. Bell" <mentor@madwifi.org>
Cc: Luis Rodriguez <mcgrof@winlab.rutgers.edu>
Cc: Pavel Roskin <proski@gnu.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200814113933.1903438-10-lee.jones@linaro.org
4 years agoath5k: Use fallthrough pseudo-keyword
Gustavo A. R. Silva [Mon, 27 Jul 2020 19:49:30 +0000 (14:49 -0500)]
ath5k: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727194930.GA1491@embeddedor
4 years agoath11k: hal: create hw_srng_config dynamically
Kalle Valo [Fri, 14 Aug 2020 07:10:30 +0000 (10:10 +0300)]
ath11k: hal: create hw_srng_config dynamically

On QCA6390 reg_start and reg_size values are different from IPQ8074 so we need
to change the values runtime. As we can't modify a static const variable
hw_srng_config directly, instead use it as a template, copy it and modify the
copy with correct values.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-12-git-send-email-kvalo@codeaurora.org
4 years agoath11k: enable internal sleep clock
Carl Huang [Fri, 14 Aug 2020 07:10:29 +0000 (10:10 +0300)]
ath11k: enable internal sleep clock

On x86 and other non-qcom platforms, host needs to explicitly tell the firmware
to use the internal sleep clock. Some QCA6390 modules have OTP burnt with
external sleep clock selected, and these modules can't work expectedly unless
firmware selects internal sleep clock.

Add a field to hw_params to support this difference.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-11-git-send-email-kvalo@codeaurora.org
4 years agoath11k: fix KASAN warning of ath11k_qmi_wlanfw_wlan_cfg_send
Carl Huang [Fri, 14 Aug 2020 07:10:28 +0000 (10:10 +0300)]
ath11k: fix KASAN warning of ath11k_qmi_wlanfw_wlan_cfg_send

It's caused by reading memory out of boundary from target_ce_config_wlan.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-10-git-send-email-kvalo@codeaurora.org
4 years agoath11k: fix memory OOB access in qmi_decode
Carl Huang [Fri, 14 Aug 2020 07:10:27 +0000 (10:10 +0300)]
ath11k: fix memory OOB access in qmi_decode

The decoded_size is wrongly assigned in ath11k_qmi_msg_handlers and it results
in out of boundary access in qmi_decode. The correct decoded_size should be
calculated from the related ind_msg structure.

This issue is exposed with QCA6390 because it needs 11 small memory chunks
which are stored in qmi_wlanfw_request_mem_ind_msg_v01 and hence the
decoded_size exceeds the wrongly assigend decoded_size.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-9-git-send-email-kvalo@codeaurora.org
4 years agoath11k: allocate smaller chunks of memory for firmware
Carl Huang [Fri, 14 Aug 2020 07:10:26 +0000 (10:10 +0300)]
ath11k: allocate smaller chunks of memory for firmware

On x86 it's sometimes difficult to allocate a large contigous DMA
memory, so instead allocate blocks of small chunk memory.

In ath11k_qmi_msg_mem_request_cb() the error handling was cleaned up to avoid
an unused variable warning. Also changed the test from (ret < 0) to just (ret)
as the functions don't return any positive values.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-8-git-send-email-kvalo@codeaurora.org
4 years agoath11k: setup ce tasklet for control path
Govind Singh [Fri, 14 Aug 2020 07:10:25 +0000 (10:10 +0300)]
ath11k: setup ce tasklet for control path

CE srng is used for control path and CE srng processing is done using tasklet
bottom half. Setup ce tasklet initialization and scheduling for control path.

Needed for PCI support.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-7-git-send-email-kvalo@codeaurora.org
4 years agoath11k: configure copy engine msi address in CE srng
Govind Singh [Fri, 14 Aug 2020 07:10:24 +0000 (10:10 +0300)]
ath11k: configure copy engine msi address in CE srng

Fill msi base address and msi data to be programmed in CE srang.
This is used by the srng to generate the msi interrupt.

Needed for PCI support.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-6-git-send-email-kvalo@codeaurora.org
4 years agoath11k: pci: add read32() and write32() hif operations
Govind Singh [Fri, 14 Aug 2020 07:10:23 +0000 (10:10 +0300)]
ath11k: pci: add read32() and write32() hif operations

Add support for bus read/write/window selection operations
for reading hardware memory.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-5-git-send-email-kvalo@codeaurora.org
4 years agoath11k: fill appropriate QMI service instance id for QCA6390
Govind Singh [Fri, 14 Aug 2020 07:10:22 +0000 (10:10 +0300)]
ath11k: fill appropriate QMI service instance id for QCA6390

QMI service instance id is used for qmi service lookup, IPQ8074 and QCA6390
uses different instance id for service lookup.  Fill appropriate QMI service
instance id for respective targets.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-4-git-send-email-kvalo@codeaurora.org
4 years agoath11k: add board file support for PCI devices
Govind Singh [Fri, 14 Aug 2020 07:10:21 +0000 (10:10 +0300)]
ath11k: add board file support for PCI devices

PCI devices like QCA6390 load the board file differently, add support for that
and the method is chosen using bus_params variables.

Add support to create board name for different targets.  This board name is
used to parse the board data from board-2.bin for ahb/pci based targets.

As struct target_mem_chunk::vaddr was changed from 'u32' to 'u32 *' in
ath11k_qmi_assign_target_mem_chunk() vaddr assignments were changed to NULL to
avoid a compilation warning. IPQ8074 does not use the vaddr field for anything
so that change does not affect functionality.

At the moment this only supports board files with BIN type. Support for ELF
type, which seems to be more popular on QCA6390 devices, needs to be added later.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-3-git-send-email-kvalo@codeaurora.org
4 years agoath11k: add support for m3 firmware
Govind Singh [Fri, 14 Aug 2020 07:10:20 +0000 (10:10 +0300)]
ath11k: add support for m3 firmware

PCI devices like QCA6390 have a separate firmware image for the m3
micro-controller. Add support to load the firmware using m3.bin file.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597389030-13887-2-git-send-email-kvalo@codeaurora.org
4 years agoath11k: use remoteproc only with AHB devices
Govind Singh [Thu, 13 Aug 2020 09:04:26 +0000 (12:04 +0300)]
ath11k: use remoteproc only with AHB devices

QCA6390 and other PCI devices use MHI based firmware loading and do not use
remoteproc, so enable it only for AHB devices.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-11-git-send-email-kvalo@codeaurora.org
4 years agoath11k: pci: add HAL, CE and core initialisation
Govind Singh [Thu, 13 Aug 2020 09:04:25 +0000 (12:04 +0300)]
ath11k: pci: add HAL, CE and core initialisation

Define CE pipe/qmi config and setup pci irq for the
same. Call ath11k_core_init().

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-10-git-send-email-kvalo@codeaurora.org
4 years agoath11k: register MHI controller device for QCA6390
Govind Singh [Thu, 13 Aug 2020 09:04:24 +0000 (12:04 +0300)]
ath11k: register MHI controller device for QCA6390

Modem Host Interface (MHI) is a communication protocol to communicate with
external Qualcomm modems and Wi-Fi chipsets over high speed peripheral buses.
Even though MHI doesn’t dictate underlying physical layer, protocol and MHI
stack is structured for PCI based devices.

Register directly with MHI subsystem as a MHI device driver for firmware
download to QCA6390.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-9-git-send-email-kvalo@codeaurora.org
4 years agoath11k: implement ath11k_core_pre_init()
Kalle Valo [Thu, 13 Aug 2020 09:04:23 +0000 (12:04 +0300)]
ath11k: implement ath11k_core_pre_init()

This is needed to initialise hw_params before MHI registration starts. MHI
needs location of firmware directory and that's delivered via hw_params.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-8-git-send-email-kvalo@codeaurora.org
4 years agoath11k: pci: add MSI config initialisation
Govind Singh [Thu, 13 Aug 2020 09:04:22 +0000 (12:04 +0300)]
ath11k: pci: add MSI config initialisation

QCA6390 uses PCI MSI for CE/MHI/DP interrupt.  Add MSI vector mapping and MSI
enable/disable operations.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-7-git-send-email-kvalo@codeaurora.org
4 years agoath11k: pci: setup resources
Govind Singh [Thu, 13 Aug 2020 09:04:21 +0000 (12:04 +0300)]
ath11k: pci: setup resources

Add support for setting up pci region and dma mask.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-6-git-send-email-kvalo@codeaurora.org
4 years agoath11k: add simple PCI client driver for QCA6390 chipset
Govind Singh [Thu, 13 Aug 2020 09:04:20 +0000 (12:04 +0300)]
ath11k: add simple PCI client driver for QCA6390 chipset

QCA6390 is a PCI based 11ax chipset, split AHB into own kernel module
ath11k_ahb.ko and add ath11k_pci.ko for PCI devices.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-5-git-send-email-kvalo@codeaurora.org
4 years agoath11k: move ring mask definitions to hw_params
Kalle Valo [Thu, 13 Aug 2020 09:04:19 +0000 (12:04 +0300)]
ath11k: move ring mask definitions to hw_params

This is needed for splitting ahb and pci modules as they have different ring
mask settings.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-4-git-send-email-kvalo@codeaurora.org
4 years agoath11k: add hw_params entry for QCA6390
Carl Huang [Thu, 13 Aug 2020 09:04:18 +0000 (12:04 +0300)]
ath11k: add hw_params entry for QCA6390

Define own firmware directory and settings for QCA6390.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-3-git-send-email-kvalo@codeaurora.org
4 years agoath11k: do not depend on ARCH_QCOM for ath11k
Carl Huang [Thu, 13 Aug 2020 09:04:17 +0000 (12:04 +0300)]
ath11k: do not depend on ARCH_QCOM for ath11k

With only IPQ8074 supported ath11k was only usable on Qualcomm architectures.
But now that we are adding QCA6390 PCI support to ath11k that's not the case
anymore and it can be used on any architecture supporting PCI. So remove the
dependency on ARCH_QCOM. After that there is also no need to depend on
COMPILE_TEST.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-2-git-send-email-kvalo@codeaurora.org
4 years agoath10k: correct the array index from mcs index for HT mode for QCA6174
Wen Gong [Fri, 14 Aug 2020 08:04:54 +0000 (16:04 +0800)]
ath10k: correct the array index from mcs index for HT mode for QCA6174

The mcs index of HT mode is 0 to 31, please refer http://mcsindex.com/.
Its spatial stream(Nss) number is from 1 to 4, mcs index is 0~7 for
Nss=1, 8~15 for Nss=2, 16~23 for Nss=3 and 24~31 is for Nss=4.

The mcs is reported from firmware in wmi_tlv_peer_stats_info of
event WMI_TLV_PEER_STATS_INFO_EVENTID, its range is from 0~15 for
QCA6174 SDIO and PCIe. It is for both Nss=1 and Nss=2, and it has 2
rate table supported_ht_mcs_rate_nss1 and supported_ht_mcs_rate_nss2
in ath10k, they are for Nss=1 and Nss=2, each table has 8 rates.

It need to find the matched row number with the mcs index, for example,
mcs index is 2, it is <=7, so it is Nss=1, and match row 2 in table of
Nss=1. If mcs index is 12, it is >= 8 and <= 15, so it is Nss=2, it
match row 4(12-8) in table of Nss=2. If mcs index is >=16, it is for
Nss=3/4, it need to add rate table, so it is not support in current
ath10k.

This patch is to find the row number in rate table of Nss=1 or Nss=2
with the mcs index reported from firmware.

This patch only effect the chips which supports_peer_stats_info of its
hw_params is true, it is true only for QCA6174 currently.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00048
Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597392294-13124-1-git-send-email-wgong@codeaurora.org
4 years agoath10k: enable supports_peer_stats_info for QCA6174 PCI devices
Wen Gong [Fri, 14 Aug 2020 15:55:51 +0000 (18:55 +0300)]
ath10k: enable supports_peer_stats_info for QCA6174 PCI devices

When using QCA6174 PCI devices working in station mode, after connected
to AP, tx bitrate is always '1.0 MBit/s' in output of command 'iw wlan0
station dump'. (QCA6174 SDIO devices are working fine.)

After this patch, it show correct bitrate:

Station c4:04:15:5d:97:22 (on wls1)
        inactive time:  312 ms
        rx bytes:       31496
        rx packets:     173
        tx bytes:       8625
        tx packets:     46
        tx retries:     0
        tx failed:      0
        signal:         -76 [-88, -80] dBm
        signal avg:     -75 [-82, -77] dBm
        tx bitrate:     39.0 MBit/s MCS 4
        rx bitrate:     26.0 MBit/s MCS 3

Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597312029-32348-4-git-send-email-wgong@codeaurora.org
4 years agoath10k: remove return for NL80211_STA_INFO_TX_BITRATE
Wen Gong [Fri, 14 Aug 2020 15:55:50 +0000 (18:55 +0300)]
ath10k: remove return for NL80211_STA_INFO_TX_BITRATE

ath10k_sta_statistics is used to report many info to iw wlan0 link,
if it return for empty legacy and nss of arsta->txrate, then the other
stats after it will not be set.

It has 4 bit to set after the return:
NL80211_STA_INFO_TX_FAILED
NL80211_STA_INFO_RX_BITRATE
NL80211_STA_INFO_TX_BITRATE
NL80211_STA_INFO_TX_RETRIES

This patch not effect the info of above 4 bit for all hardware, reason
as below:

NL80211_STA_INFO_TX_FAILED is only for htt.disable_tx_comp is true, it
is for QCA6174 SDIO.

NL80211_STA_INFO_RX_BITRATE and NL80211_STA_INFO_TX_BITRATE are both
set in ath10k_mac_sta_get_peer_stats_info, it is only enabled for chips
which supports_peer_stats_info is true in hw_params, recently only for
QCA6174 SDIO, NL80211_STA_INFO_TX_BITRATE is set again in function
ath10k_mac_sta_get_peer_stats_info because the value which parsed from
arsta->tx_rate_code and arsta->tx_bitrate_kbps is correct for QCA6174
SDIO and PCIe, and the value arsta->txrate is not correct for QCA6174
SDIO and PCIe, so it need to set again with the correct value.

NL80211_STA_INFO_TX_RETRIES is use value of arsta->tx_retries, it is set
in ath10k_update_per_peer_tx_stats, which accumulate the retry_pkts in
HTT message from firmware, if the chips not support this feature, then
it is always 0 after accumulate, then iw wlan0 station dump always show
0 for retry count. If not set NL80211_STA_INFO_TX_RETRIES here, then it
is still 0, so the result is same, then set NL80211_STA_INFO_TX_RETRIES
has no effect.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00048
Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597312029-32348-3-git-send-email-wgong@codeaurora.org
4 years agoath10k: add wmi service peer stat info for wmi tlv
Wen Gong [Fri, 14 Aug 2020 15:55:50 +0000 (18:55 +0300)]
ath10k: add wmi service peer stat info for wmi tlv

ath10k_sta_statistics is used to report info for iw wlan0 link,
it check ath10k_peer_stats_enabled, and ath10k_peer_stats_enabled
check WMI_SERVICE_PEER_STATS bit of ar->wmi.svc_map. SVCMAP() for
WMI_SERVICE_PEER_STATS was defined only for wmi_10x_svc_map and
wmi_10_4_svc_map interfaces, it missed in wmi_tlv_svc_map, so it is
not usable for iw wlan0 link for wmi tlv interface.

If firmware report WMI_TLV_SERVICE_PEER_STATS_INFO for wmi tlv, then
enable the WMI_SERVICE_PEER_STATS bit in ath10k, and then it pass check
in ath10k_peer_stats_enabled and ath10k_sta_statistics pass check.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00048
Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597312029-32348-2-git-send-email-wgong@codeaurora.org
4 years agoath10k: start recovery process when payload length exceeds max htc length for sdio
Wen Gong [Fri, 14 Aug 2020 15:17:08 +0000 (18:17 +0300)]
ath10k: start recovery process when payload length exceeds max htc length for sdio

When simulate random transfer fail for sdio write and read, it happened
"payload length exceeds max htc length" and recovery later sometimes.

Test steps:
1. Add config and update kernel:
CONFIG_FAIL_MMC_REQUEST=y
CONFIG_FAULT_INJECTION=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y

2. Run simulate fail:
cd /sys/kernel/debug/mmc1/fail_mmc_request
echo 10 > probability
echo 10 > times # repeat until hitting issues

3. It happened payload length exceeds max htc length.
[  199.935506] ath10k_sdio mmc1:0001:1: payload length 57005 exceeds max htc length: 4088
....
[  264.990191] ath10k_sdio mmc1:0001:1: payload length 57005 exceeds max htc length: 4088

4. after some time, such as 60 seconds, it start recovery which triggered
by wmi command timeout for periodic scan.
[  269.229232] ieee80211 phy0: Hardware restart was requested
[  269.734693] ath10k_sdio mmc1:0001:1: device successfully recovered

The simulate fail of sdio is not a real sdio transter fail, it only
set an error status in mmc_should_fail_request after the transfer end,
actually the transfer is success, then sdio_io_rw_ext_helper will
return error status and stop transfer the left data. For example,
the really RX len is 286 bytes, then it will split to 2 blocks in
sdio_io_rw_ext_helper, one is 256 bytes, left is 30 bytes, if the
first 256 bytes get an error status by mmc_should_fail_request,then
the left 30 bytes will not read in this RX operation. Then when the
next RX arrive, the left 30 bytes will be considered as the header
of the read, the top 4 bytes of the 30 bytes will be considered as
lookaheads, but actually the 4 bytes is not the lookaheads, so the len
from this lookaheads is not correct, it exceeds max htc length 4088
sometimes. When happened exceeds, the buffer chain is not matched between
firmware and ath10k, then it need to start recovery ASAP. Recently then
recovery will be started by wmi command timeout, but it will be long time
later, for example, it is 60+ seconds later from the periodic scan, if
it does not have periodic scan, it will be longer.

Start recovery when it happened "payload length exceeds max htc length"
will be reasonable.

This patch only effect sdio chips.

Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200108031957.22308-3-wgong@codeaurora.org
4 years agoath5k: Replace HTTP links with HTTPS ones
Alexander A. Klimov [Sun, 19 Jul 2020 10:40:41 +0000 (12:40 +0200)]
ath5k: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200719104041.57916-1-grandmaster@al2klimov.de
4 years agoath: drop unnecessary list_empty
Julia Lawall [Sun, 26 Jul 2020 10:58:32 +0000 (12:58 +0200)]
ath: drop unnecessary list_empty

list_for_each_entry{_safe} is able to handle an empty list.
The only effect of avoiding the loop is not initializing the
index variable.
Drop list_empty tests in cases where these variables are not
used.

Note that list_for_each_entry{_safe} is defined in terms of
list_first_entry, which indicates that it should not be used on an
empty list.  But in list_for_each_entry{_safe}, the element obtained
by list_first_entry is not really accessed, only the address of its
list_head field is compared to the address of the list head, so the
list_first_entry is safe.

The semantic patch that makes this change for the list_for_each_entry
case is as follows: (http://coccinelle.lip6.fr/)

<smpl>
@@
expression x,e;
statement S;
identifier i;
@@

-if (!(list_empty(x)))
   list_for_each_entry(i,x,...) S
 ... when != i
? i = e
</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595761112-11003-8-git-send-email-Julia.Lawall@inria.fr
4 years agoath9k: Use fallthrough pseudo-keyword
Gustavo A. R. Silva [Mon, 27 Jul 2020 19:35:20 +0000 (14:35 -0500)]
ath9k: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200727193520.GA832@embeddedor
4 years agowcn36xx: Use sequence number allocated by mac80211
Loic Poulain [Fri, 24 Jul 2020 10:20:52 +0000 (12:20 +0200)]
wcn36xx: Use sequence number allocated by mac80211

Instead of using the firmware generated sequence number, use the one
already allocated by the mac80211 layer. This allows better control
of the sequence numbers and avoid to rely on same sequence for Data,
QOS Data and QOS Null Data packets.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595586052-16081-7-git-send-email-loic.poulain@linaro.org
4 years agowcn36xx: Fix TX data path
Loic Poulain [Fri, 24 Jul 2020 10:20:50 +0000 (12:20 +0200)]
wcn36xx: Fix TX data path

This patch contains the following fixes:

- Use correct queue for submitting QoS packet. The queue id to use
is a one-to-one mapping with the TID.

- Don't encrypt a frame with IEEE80211_TX_INTFL_DONT_ENCRYPT flag.

- Use the 'special queue' for null packets, preventing the firmware
to submit it as AMPDU.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595586052-16081-5-git-send-email-loic.poulain@linaro.org
4 years agowcn36xx: Increase number of TX retries
Loic Poulain [Fri, 24 Jul 2020 10:20:49 +0000 (12:20 +0200)]
wcn36xx: Increase number of TX retries

Increase the short/long retry limit to 15 in order to impove TX
robustness in noisy/busy environment. 15 is the default value
defined in the downstream driver. Observed number of ack timeout
is reduced with this change.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595586052-16081-4-git-send-email-loic.poulain@linaro.org
4 years agowcn36xx: Add TX ack support
Loic Poulain [Fri, 24 Jul 2020 10:20:48 +0000 (12:20 +0200)]
wcn36xx: Add TX ack support

The controller is capable of reporting TX indication which can be used
to report TX ack when IEEE80211_TX_CTL_REQ_TX_STATUS is set.
The support was only partially implemented.

The firmware can be configured for reporting event when a packet is
acked, without specifying which packet though. In order to send a
packet flagged with TX status callback, we need to stop the queue,
submit the packet and wait for the firmware ack event. Then the queue
can be restarted and mac80211 status callback called.

In case the packet is not acked, no ack event will be received,
therefore a timeout mechanism is introduced to restart the queue
and call the status cb in case no event is received after a 100ms.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595586052-16081-3-git-send-email-loic.poulain@linaro.org
4 years agowcn36xx: Fix multiple AMPDU sessions support
Loic Poulain [Fri, 24 Jul 2020 10:20:47 +0000 (12:20 +0200)]
wcn36xx: Fix multiple AMPDU sessions support

Several AMPDU sessions can be started, e.g. for different TIDs.
Currently the driver does not take care of the session ID when
requesting block-ack (statically set to 0), which leads to never
block-acked packet with sessions other than 0.

Fix this by saving the session id when creating the ba session and
use it in subsequent ba operations.

This issue can be reproduced with iperf in two steps (tid 0 strem
then tid 6 stream).

1.0 iperf -s                                # wcn36xx side
1.1 iperf -c ${IP_ADDR}                     # host side

Then

2.0 iperf -s -u -S 0xC0                     # wcn36xx side
2.1 iperf -c ${IP_ADDR} -u -S 0xC0 -l 2000  # host side

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1595586052-16081-2-git-send-email-loic.poulain@linaro.org
4 years agoath9k: Fix typo in function name
Pavel Machek [Sat, 25 Jul 2020 07:09:33 +0000 (10:09 +0300)]
ath9k: Fix typo in function name

Typo "destoy" made me wonder if correct patch is wrong; fix it. No
functional change.

Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200724083910.GA31930@amd
4 years agoath9k: Replace HTTP links with HTTPS ones
Alexander A. Klimov [Sat, 25 Jul 2020 07:09:33 +0000 (10:09 +0300)]
ath9k: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200719105052.57997-1-grandmaster@al2klimov.de
4 years agoath10k: check idx validity in __ath10k_htt_rx_ring_fill_n()
Zekun Shen [Tue, 23 Jun 2020 22:11:05 +0000 (18:11 -0400)]
ath10k: check idx validity in __ath10k_htt_rx_ring_fill_n()

The idx in __ath10k_htt_rx_ring_fill_n function lives in
consistent dma region writable by the device. Malfunctional
or malicious device could manipulate such idx to have a OOB
write. Either by
    htt->rx_ring.netbufs_ring[idx] = skb;
or by
    ath10k_htt_set_paddrs_ring(htt, paddr, idx);

The idx can also be negative as it's signed, giving a large
memory space to write to.

It's possibly exploitable by corruptting a legit pointer with
a skb pointer. And then fill skb with payload as rougue object.

Part of the log here. Sometimes it appears as UAF when writing
to a freed memory by chance.

 [   15.594376] BUG: unable to handle page fault for address: ffff887f5c1804f0
 [   15.595483] #PF: supervisor write access in kernel mode
 [   15.596250] #PF: error_code(0x0002) - not-present page
 [   15.597013] PGD 0 P4D 0
 [   15.597395] Oops: 0002 [#1] SMP KASAN PTI
 [   15.597967] CPU: 0 PID: 82 Comm: kworker/u2:2 Not tainted 5.6.0 #69
 [   15.598843] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
 BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
 [   15.600438] Workqueue: ath10k_wq ath10k_core_register_work [ath10k_core]
 [   15.601389] RIP: 0010:__ath10k_htt_rx_ring_fill_n
 (linux/drivers/net/wireless/ath/ath10k/htt_rx.c:173) ath10k_core

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200623221105.3486-1-bruceshenzk@gmail.com
4 years agoath9k: Check the return value of pcie_capability_read_*()
Bolarinwa Olayemi Saheed [Mon, 13 Jul 2020 17:55:26 +0000 (19:55 +0200)]
ath9k: Check the return value of pcie_capability_read_*()

On failure pcie_capability_read_dword() sets it's last parameter, val
to 0. However, with Patch 14/14, it is possible that val is set to ~0 on
failure. This would introduce a bug because (x & x) == (~0 & x).

This bug can be avoided without changing the function's behaviour if the
return value of pcie_capability_read_dword is checked to confirm success.

Check the return value of pcie_capability_read_dword() to ensure success.

Suggested-by: Bjorn Helgaas <bjorn@helgaas.com>
Signed-off-by: Bolarinwa Olayemi Saheed <refactormyself@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200713175529.29715-2-refactormyself@gmail.com
4 years agoath11k: remove define ATH11K_QMI_DEFAULT_CAL_FILE_NAME
Kalle Valo [Tue, 16 Jun 2020 14:00:55 +0000 (17:00 +0300)]
ath11k: remove define ATH11K_QMI_DEFAULT_CAL_FILE_NAME

It's just a duplicate of ATH11K_DEFAULT_CAL_FILE.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-13-git-send-email-kvalo@codeaurora.org
4 years agoath11k: don't use defines in hw_params
Kalle Valo [Tue, 16 Jun 2020 14:00:54 +0000 (17:00 +0300)]
ath11k: don't use defines in hw_params

These defines are not used anywhere else so to avoid extra indirection add the
values directly to hw_params.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-12-git-send-email-kvalo@codeaurora.org
4 years agoath11k: qmi: cleanup info messages
Kalle Valo [Tue, 16 Jun 2020 14:00:53 +0000 (17:00 +0300)]
ath11k: qmi: cleanup info messages

Use simplified format, just like ath10k uses, which is easier to read.

Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-11-git-send-email-kvalo@codeaurora.org
4 years agoath11k: remove useless info messages
Kalle Valo [Tue, 16 Jun 2020 14:00:52 +0000 (17:00 +0300)]
ath11k: remove useless info messages

ath11k should not be spamming these to the logs. If these are important they
should be debug messages, but I just remove them for now.

Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-10-git-send-email-kvalo@codeaurora.org
4 years agoath11k: change ath11k_core_fetch_board_data_api_n() to use ath11k_core_create_firmwar...
Kalle Valo [Tue, 16 Jun 2020 14:00:51 +0000 (17:00 +0300)]
ath11k: change ath11k_core_fetch_board_data_api_n() to use ath11k_core_create_firmware_path()

Use the helper added in previous comment to create the full path, instead of doing it manually.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-9-git-send-email-kvalo@codeaurora.org
4 years agoath11k: don't use defines for hw specific firmware directories
Kalle Valo [Tue, 16 Jun 2020 14:00:50 +0000 (17:00 +0300)]
ath11k: don't use defines for hw specific firmware directories

The downside of using defines in struct ath11k_hw_params.fw.dir is that it's
easy to get it wrong as the full path is not visible. So drop the use of
defines and instead create the patch runtime using a static inline function
ath11k_core_create_firmware_path(). Hopefully this reduces the chances of using
incorrect firmware path.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-8-git-send-email-kvalo@codeaurora.org
4 years agoath11k: create a common function to request all firmware files
Kalle Valo [Tue, 16 Jun 2020 14:00:49 +0000 (17:00 +0300)]
ath11k: create a common function to request all firmware files

To avoid duplicating the logic how the full firmware path is created create a
common function ath11k_core_firmware_request() and convert also qmi.c to use it.

Also remove a useless info print, it's more like a debug message anyway.

No functional changes. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-7-git-send-email-kvalo@codeaurora.org
4 years agoath11k: Add bdf-addr in hw_params
Anilkumar Kolli [Tue, 16 Jun 2020 14:00:48 +0000 (17:00 +0300)]
ath11k: Add bdf-addr in hw_params

bdf-addr is different for IPQ8074 and IPQ6018 so add it to hw_params.

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-6-git-send-email-kvalo@codeaurora.org
4 years agoath11k: add hw_ops for pdev id to hw_mac mapping
Anilkumar Kolli [Tue, 16 Jun 2020 14:00:47 +0000 (17:00 +0300)]
ath11k: add hw_ops for pdev id to hw_mac mapping

pdev_id to hw_mac is different for ipq8074 and ipq6018
Below table has the mapping

pdev_id ipq8074 ipq6018
------- ------- -------
  0 0 0
  1 2 1
  2 1 Not applicable

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-5-git-send-email-kvalo@codeaurora.org
4 years agoath11k: define max_radios in hw_params
Anilkumar Kolli [Tue, 16 Jun 2020 14:00:46 +0000 (17:00 +0300)]
ath11k: define max_radios in hw_params

IPQ6018 needs different value for max_radios so make it configurable via hw_params.

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-4-git-send-email-kvalo@codeaurora.org
4 years agoath11k: convert ath11k_hw_params to an array
Anilkumar Kolli [Tue, 16 Jun 2020 14:00:45 +0000 (17:00 +0300)]
ath11k: convert ath11k_hw_params to an array

Convert to ath11k_hw_params to an array to make it possible add new hardware in
the future, for example IPQ6018 or QCA6390.

No functional changes. Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-3-git-send-email-kvalo@codeaurora.org
4 years agoath11k: ahb: call ath11k_core_init() before irq configuration
Anilkumar Kolli [Tue, 16 Jun 2020 14:00:44 +0000 (17:00 +0300)]
ath11k: ahb: call ath11k_core_init() before irq configuration

This is needed to init .max_radios in hw_params and onfigure external
interrupts for available pdev_ids.

Compile tested only.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592316055-24958-2-git-send-email-kvalo@codeaurora.org
4 years agoath10k: pci: fix memcpy size of bmi response
Zekun Shen [Tue, 16 Jun 2020 13:25:43 +0000 (09:25 -0400)]
ath10k: pci: fix memcpy size of bmi response

A compromized ath10k peripheral is able to control the size argument
of memcpy in ath10k_pci_hif_exchange_bmi_msg.

The min result from previous line is not used as the size argument
for memcpy. Instead, xfer.resp_len comes from untrusted stream dma
input. The value comes from "nbytes" in ath10k_pci_bmi_recv_data,
which is set inside _ath10k_ce_completed_recv_next_nolock with the line

nbytes = __le16_to_cpu(sdesc.nbytes);

sdesc is a stream dma region which device can write to.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200616132544.17478-1-bruceshenzk@gmail.com
4 years agoath11k: rename default board file
Anilkumar Kolli [Tue, 16 Jun 2020 08:27:34 +0000 (11:27 +0300)]
ath11k: rename default board file

Rename default BDF to make it consistent with board-2.bin naming.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591709581-18039-4-git-send-email-akolli@codeaurora.org
4 years agoath11k: update firmware files read path
Anilkumar Kolli [Tue, 16 Jun 2020 08:27:33 +0000 (11:27 +0300)]
ath11k: update firmware files read path

We need this so that all hardware versions can coexist and
it's easier to manage everything then all hardware
directories are under ath11k directory.

Copy ath11k firmware files to
/lib/firmware/ath11k/IPQ8074/hw2.0/

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591709581-18039-3-git-send-email-akolli@codeaurora.org
4 years agowcn36xx: Add ieee80211 rx status rate information
Loic Poulain [Mon, 15 Jun 2020 17:29:06 +0000 (20:29 +0300)]
wcn36xx: Add ieee80211 rx status rate information

Packet encoding, bandwidth and bitrate can be derived from the
wcn36xx rate_idx, part of the buffer descriptor.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591961254-10243-1-git-send-email-loic.poulain@linaro.org
4 years agoath10k: provide survey info as accumulated data
Venkateswara Naralasetty [Mon, 15 Jun 2020 17:29:03 +0000 (20:29 +0300)]
ath10k: provide survey info as accumulated data

It is expected that the returned counters by .get_survey are monotonic
increasing. But the data from ath10k gets reset to zero regularly. Channel
active/busy time are then showing incorrect values (less than previous or
sometimes zero) for the currently active channel during successive survey
dump commands.

example:

  $ iw dev wlan0 survey dump
  Survey data from wlan0
   frequency:                      5180 MHz [in use]
   channel active time:            54995 ms
   channel busy time:              432 ms
   channel receive time:           0 ms
   channel transmit time:          59 ms
  ...

  $ iw dev wlan0 survey dump
  Survey data from wlan0
   frequency:                      5180 MHz [in use]
   channel active time:            32592 ms
   channel busy time:              254 ms
   channel receive time:           0 ms
   channel transmit time:          0 ms
  ...

The correct way to handle this is to use the non-clearing
WMI_BSS_SURVEY_REQ_TYPE_READ wmi_bss_survey_req_type. The firmware will
then accumulate the survey data and handle wrap arounds.

Tested-on: QCA9984 hw1.0 10.4-3.5.3-00057
Tested-on: QCA988X hw2.0 10.2.4-1.0-00047
Tested-on: QCA9888 hw2.0 10.4-3.9.0.2-00024
Tested-on: QCA4019 hw1.0 10.4-3.6-00140

Fixes: fa7937e3d5c2 ("ath10k: update bss channel survey information")
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Tested-by: Markus Theil <markus.theil@tu-ilmenau.de>
Tested-by: John Deere <24601deerej@gmail.com>
[sven@narfation.org: adjust commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592232686-28712-1-git-send-email-kvalo@codeaurora.org
4 years agoath10k: fix retry packets update in station dump
Venkateswara Naralasetty [Mon, 15 Jun 2020 17:29:01 +0000 (20:29 +0300)]
ath10k: fix retry packets update in station dump

When tx status enabled, retry count is updated from tx completion status.
which is not working as expected due to firmware limitation where
firmware can not provide per MSDU rate statistics from tx completion
status. Due to this tx retry count is always 0 in station dump.

Fix this issue by updating the retry packet count from per peer
statistics. This patch will not break on SDIO devices since, this retry
count is already updating from peer statistics for SDIO devices.

Tested-on: QCA9984 PCI 10.4-3.6-00104
Tested-on: QCA9882 PCI 10.2.4-1.0-00047

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591856446-26977-1-git-send-email-vnaralas@codeaurora.org
4 years agoath10k: Wait until copy complete is actually done before completing
Douglas Anderson [Mon, 15 Jun 2020 17:28:59 +0000 (20:28 +0300)]
ath10k: Wait until copy complete is actually done before completing

On wcn3990 we have "per_ce_irq = true".  That makes the
ath10k_ce_interrupt_summary() function always return 0xfff. The
ath10k_ce_per_engine_service_any() function will see this and think
that _all_ copy engines have an interrupt.  Without checking, the
ath10k_ce_per_engine_service() assumes that if it's called that the
"copy complete" (cc) interrupt fired.  This combination seems bad.

Let's add a check to make sure that the "copy complete" interrupt
actually fired in ath10k_ce_per_engine_service().

This might fix a hard-to-reproduce failure where it appears that the
copy complete handlers run before the copy is really complete.
Specifically a symptom was that we were seeing this on a Qualcomm
sc7180 board:
  arm-smmu 15000000.iommu: Unhandled context fault:
  fsr=0x402, iova=0x7fdd45780, fsynr=0x30003, cbfrsynra=0xc1, cb=10

Even on platforms that don't have wcn3990 this still seems like it
would be a sane thing to do.  Specifically the current IRQ handler
comments indicate that there might be other misc interrupt sources
firing that need to be cleared.  If one of those sources was the one
that caused the IRQ handler to be called it would also be important to
double-check that the interrupt we cared about actually fired.

Tested-on: WCN3990 SNOC WLAN.HL.3.2.2-00490-QCAHLSWMTPL-1

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200609082015.1.Ife398994e5a0a6830e4d4a16306ef36e0144e7ba@changeid
4 years agoMerge tag 'iwlwifi-next-for-kalle-2020-06-11' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Mon, 15 Jun 2020 17:23:23 +0000 (20:23 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2020-06-11' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

First set of patches intended for v5.9

* Fix links to wiki;
* Some preparations for gcc-10;
* Make FW reconfiguration quieter by not using warn level;
* Some other small fixes and clean-up;

# gpg: Signature made Thu 11 Jun 2020 12:03:51 PM EEST using RSA key ID 1A3CC5FA
# gpg: Good signature from "Luciano Roth Coelho (Luca) <luca@coelho.fi>"
# gpg:                 aka "Luciano Roth Coelho (Intel) <luciano.coelho@intel.com>"

4 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Mon, 15 Jun 2020 17:18:39 +0000 (20:18 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for v5.9. Major changes:

ath11k

* add 6G band support

* add spectral scan support

4 years agoath11k: fix wmi peer flags in peer assoc command
Venkateswara Naralasetty [Thu, 11 Jun 2020 05:09:55 +0000 (08:09 +0300)]
ath11k: fix wmi peer flags in peer assoc command

Currently need ptk/gtk wmi peer flags in wmi peer assoc cmd
are set based on the rsnie and wpaie of the bss from the bss list.
Since this bss list is not updated with current BSSID for AP mode,
we may not find bss from the bss list. Which results in ptk/gtk peer
flags are not set in the wmi peer assoc cmd. Due to this EAPOL frames
are going in data rates instead of management rates.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591771841-25503-1-git-send-email-vnaralas@codeaurora.org
4 years agoath11k: Add support for ring backpressure stats
Sriram R [Thu, 11 Jun 2020 05:09:54 +0000 (08:09 +0300)]
ath11k: Add support for ring backpressure stats

Add support for collecting and dumping the ring backpressure
stats via debugfs. Stats are dumped only if events are
received for the specific ring.

Below command can be used to obtain these stats as part of soc dp stats.
cat /sys/kernel/debug/ath11k/ipq8074/soc_dp_stats

 Sample Output - When No stats available:

 Backpressure Stats
 ==================
 No Ring Backpressure stats received

 Sample Output -  When ring bp stats available for specific ring

 Backpressure Stats
 ==================
 Ring: REO2SW1_RING
 count: 1
 hp: 2
 tp: 2
 seen before: 4ms

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01213-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591768308-32005-3-git-send-email-srirrama@codeaurora.org