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662 commits

Author SHA1 Message Date
Wen Gong
801cb1d234 ath11k: add support to search regdb data in board-2.bin for WCN6855
Currently ath11k only download the same regdb.bin file for all WCN6855
chips, actually ath11k needs to distinguish all different WCN6855 chips.

This is to re-use the string type which include bus, chip id, board id,
vendor, device, subsystem-vendor, subsystem-device and variant for
WCN6855 to distinguish different regdb in board-2.bin.

ath11k will first load board-2.bin and search in it for the regdb data
with the above parameters, if matched one regdb data, then download it
to firmware, if not matched any one, then ath11k will download the file
regdb.bin to firmware.

Add enum value ATH11K_BD_IE_REGDB and enum type ath11k_bd_ie_regdb_type
to distinguish regdb data and board data since they are in the same file
board-2.bin.

This only take effect for WCN6855 which supports regdb in hardware parameters.

Test log:
[ 3833.091948] ath11k_pci 0000:05:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[ 3833.092072] ath11k_pci 0000:05:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 205316
[ 3833.092079] ath11k_pci 0000:05:00.0: board name
[ 3833.092083] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092088] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 31                                   -id=1
[ 3833.092091] ath11k_pci 0000:05:00.0: board name
[ 3833.092095] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092099] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 32                                   -id=2
[ 3833.092102] ath11k_pci 0000:05:00.0: board name
[ 3833.092105] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092109] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 33                                   -id=3
[ 3833.092112] ath11k_pci 0000:05:00.0: board name
[ 3833.092116] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[ 3833.092119] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[ 3833.092123] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[ 3833.092126] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[ 3833.092130] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[ 3833.092133] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[ 3833.092137] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 36 2c 76 61 72 69 61  ard-id=266,varia
[ 3833.092140] ath11k_pci 0000:05:00.0: 00000070: 6e 74 3d 48 50 5f 47 38 5f 4c 61 6e 63 69 61 31  nt=HP_G8_Lancia1
[ 3833.092144] ath11k_pci 0000:05:00.0: 00000080: 35                                               5
[ 3833.092147] ath11k_pci 0000:05:00.0: board name
[ 3833.092150] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[ 3833.092154] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[ 3833.092157] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[ 3833.092161] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[ 3833.092165] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[ 3833.092168] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[ 3833.092172] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 36                    ard-id=266
[ 3833.092206] ath11k_pci 0000:05:00.0: board name
[ 3833.092209] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[ 3833.092213] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[ 3833.092216] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[ 3833.092220] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[ 3833.092223] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[ 3833.092227] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[ 3833.092230] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 32                    ard-id=262
[ 3833.092234] ath11k_pci 0000:05:00.0: boot found match regdb data for name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[ 3833.092238] ath11k_pci 0000:05:00.0: board name
[ 3833.092241] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092245] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 31 31                                -id=11
[ 3833.092248] ath11k_pci 0000:05:00.0: board name
[ 3833.092251] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092255] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 32 32                                -id=22
[ 3833.092258] ath11k_pci 0000:05:00.0: board name
[ 3833.092261] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 71 6d 69 2d 63 68 69 70  bus=pci,qmi-chip
[ 3833.092265] ath11k_pci 0000:05:00.0: 00000010: 2d 69 64 3d 33 33                                -id=33
[ 3833.092268] ath11k_pci 0000:05:00.0: boot found regdb data for 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[ 3833.092272] ath11k_pci 0000:05:00.0: fetched regdb

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220319023543.14288-4-quic_wgong@quicinc.com
2022-03-30 11:05:19 +03:00
Wen Gong
b2beae327e ath11k: store and send country code to firmware after recovery
Currently ath11k does not send the country code to firmware after device
recovery, as a result the regdomain info is reported from firmware by
default. Regdomain info is important, so ath11k also need to restore
it to the value which was used before recovery.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220324011856.11014-1-quic_wgong@quicinc.com
2022-03-28 14:48:52 +03:00
Karthikeyan Periyasamy
7b0c70d92a ath11k: Add peer rhash table support
When more clients (128) are connected, the UL data traffic
KPI measurement is low compared to single client. This issue
is due to more CPU cycles spent on the peer lookup operation
with more clients. So reduce the peer lookup operation by
modifying the linear based lookup operation into the rhash
based lookup operation. This improve the peak throughput
measurement. Since this is a software algorithm change, it is
applicable for all the platforms.

TCP UL 128 Clients test case Observation (64bit system):
Previous: ~550 Mbps
Now	: ~860 Mbps

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01067-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644036628-5334-1-git-send-email-quic_periyasa@quicinc.com
2022-03-25 12:31:10 +02:00
Wen Gong
9d97114d22 ath11k: add read variant from SMBIOS for download board data
This is to read variant from SMBIOS such as read from DT, the variant
string will be used to one part of string which used to search board
data from board-2.bin.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220315104721.26649-3-quic_wgong@quicinc.com
2022-03-25 12:29:43 +02:00
Wen Gong
62abdc06c5 ath11k: add fallback board name without variant while searching board-2.bin
Sometimes it has a variant value which read from DT or SMBIOS by
ath11k, and meanwhile it does not have the matched board name in
board-2.bin, then it will failed at boot up phase.

Add fallback board name which removed variant value and search again
in board-2.bin when failed with variant and try to load the board
data again to increase boot up success rate.

dmesg log after this patch:
[169547.248472] ath11k_pci 0000:05:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262,variant=test'
[169547.248565] ath11k_pci 0000:05:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 180324
[169547.248568] ath11k_pci 0000:05:00.0: board name
[169547.248570] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248571] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248572] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248574] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248575] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248576] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248577] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 32                    ard-id=262
[169547.248578] ath11k_pci 0000:05:00.0: board name
[169547.248579] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248581] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248582] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248583] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248584] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248585] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248587] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 36                    ard-id=266
[169547.248588] ath11k_pci 0000:05:00.0: board name
[169547.248589] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248590] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248591] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248592] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248594] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248595] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 31 38 2c 71 6d 69 2d 62  chip-id=18,qmi-b
[169547.248596] ath11k_pci 0000:05:00.0: 00000060: 6f 61 72 64 2d 69 64 3d 32 36 36                 oard-id=266
[169547.248597] ath11k_pci 0000:05:00.0: failed to fetch board data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262,variant=test from ath11k/WCN6855/hw2.0/board-2.bin
[169547.248476] ath11k_pci 0000:05:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248634] ath11k_pci 0000:05:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 180324
[169547.248636] ath11k_pci 0000:05:00.0: board name
[169547.248637] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248638] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248639] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248641] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248642] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248643] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248645] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 32                    ard-id=262
[169547.248646] ath11k_pci 0000:05:00.0: boot found match for name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248647] ath11k_pci 0000:05:00.0: boot found board data for 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248649] ath11k_pci 0000:05:00.0: using board api 2

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220315104721.26649-2-quic_wgong@quicinc.com
2022-03-25 12:29:22 +02:00
Baochen Qiang
1e4ac7173c ath11k: enable PLATFORM_CAP_PCIE_GLOBAL_RESET QMI host capability
In Qualcomm ARM platforms there is WL_EN pin and other power regulators
which can be controlled at platform side to completely reset the chip.
For most of x86 and other platforms, the chip is connected via PCIe M.2
interface, and there is no way to control WL_EN pin. Instead the host
driver needs to reset the chip via PCIE_SOC_GLOBAL_RESET hardware
register, just like ath11k does currently.

But when using PCIE_SOC_GLOBAL_RESET there are some hardware registers
which are not cleared/restored. To handle those cases we can enable
PLATFORM_CAP_PCIE_GLOBAL_RESET QMI host capability to tell the firmware
to do some platform specific operations after firmware download.

This does not fix any known issues, but is recommended by the firmware
team, so enable the capability on QCA6390 and WCN6855 PCI devices. It is
currently unclear if this should be enabled also on QCN9074, so leave it
disabled for now. On AHB devices this is not needed as they don't use
PCIE_SOC_GLOBAL_RESET.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211011055602.77342-1-bqiang@codeaurora.org
2022-03-23 11:05:54 +02:00
Wen Gong
0d7a8a6204 ath11k: fix the warning of dev_wake in mhi_pm_disable_transition()
When test device recovery with below command, it has warning in message
as below.
echo assert > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash
echo assert > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash

warning message:
[ 1965.642121] ath11k_pci 0000:06:00.0: simulating firmware assert crash
[ 1968.471364] ieee80211 phy0: Hardware restart was requested
[ 1968.511305] ------------[ cut here ]------------
[ 1968.511368] WARNING: CPU: 3 PID: 1546 at drivers/bus/mhi/core/pm.c:505 mhi_pm_disable_transition+0xb37/0xda0 [mhi]
[ 1968.511443] Modules linked in: ath11k_pci ath11k mac80211 libarc4 cfg80211 qmi_helpers qrtr_mhi mhi qrtr nvme nvme_core
[ 1968.511563] CPU: 3 PID: 1546 Comm: kworker/u17:0 Kdump: loaded Tainted: G        W         5.17.0-rc3-wt-ath+ #579
[ 1968.511629] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
[ 1968.511704] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [mhi]
[ 1968.511787] RIP: 0010:mhi_pm_disable_transition+0xb37/0xda0 [mhi]
[ 1968.511870] Code: a9 fe ff ff 4c 89 ff 44 89 04 24 e8 03 46 f6 e5 44 8b 04 24 41 83 f8 01 0f 84 21 fe ff ff e9 4c fd ff ff 0f 0b e9 af f8 ff ff <0f> 0b e9 5c f8 ff ff 48 89 df e8 da 9e ee e3 e9 12 fd ff ff 4c 89
[ 1968.511923] RSP: 0018:ffffc900024efbf0 EFLAGS: 00010286
[ 1968.511969] RAX: 00000000ffffffff RBX: ffff88811d241250 RCX: ffffffffc0176922
[ 1968.512014] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888118a90a24
[ 1968.512059] RBP: ffff888118a90800 R08: 0000000000000000 R09: ffff888118a90a27
[ 1968.512102] R10: ffffed1023152144 R11: 0000000000000001 R12: ffff888118a908ac
[ 1968.512229] R13: ffff888118a90928 R14: dffffc0000000000 R15: ffff888118a90a24
[ 1968.512310] FS:  0000000000000000(0000) GS:ffff888234200000(0000) knlGS:0000000000000000
[ 1968.512405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1968.512493] CR2: 00007f5538f443a8 CR3: 000000016dc28001 CR4: 00000000003706e0
[ 1968.512587] Call Trace:
[ 1968.512672]  <TASK>
[ 1968.512751]  ? _raw_spin_unlock_irq+0x1f/0x40
[ 1968.512859]  mhi_pm_st_worker+0x3ac/0x790 [mhi]
[ 1968.512959]  ? mhi_pm_mission_mode_transition.isra.0+0x7d0/0x7d0 [mhi]
[ 1968.513063]  process_one_work+0x86a/0x1400
[ 1968.513184]  ? pwq_dec_nr_in_flight+0x230/0x230
[ 1968.513312]  ? move_linked_works+0x125/0x290
[ 1968.513416]  worker_thread+0x6db/0xf60
[ 1968.513536]  ? process_one_work+0x1400/0x1400
[ 1968.513627]  kthread+0x241/0x2d0
[ 1968.513733]  ? kthread_complete_and_exit+0x20/0x20
[ 1968.513821]  ret_from_fork+0x22/0x30
[ 1968.513924]  </TASK>

Reason is mhi_deassert_dev_wake() from mhi_device_put() is called
but mhi_assert_dev_wake() from __mhi_device_get_sync() is not called
in progress of recovery. Commit 8e0559921f ("bus: mhi: core:
Skip device wake in error or shutdown state") add check for the
pm_state of mhi in __mhi_device_get_sync(), and the pm_state is not
the normal state untill recovery is completed, so it leads the
dev_wake is not 0 and above warning print in mhi_pm_disable_transition()
while checking mhi_cntrl->dev_wake.

Add check in ath11k_pci_write32()/ath11k_pci_read32() to skip call
mhi_device_put() if mhi_device_get_sync() does not really do wake,
then the warning gone.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220228064606.8981-5-quic_wgong@quicinc.com
2022-03-23 10:57:19 +02:00
Wen Gong
78e3e60942 ath11k: Add hw-restart option to simulate_fw_crash
Add hw-restart to directly restart wlan. Like UTF mode start it will
restart hardware and download firmware again.

Usage:
1. Run command:
   echo hw-restart > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash
   echo hw-restart > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash
2. wlan will be restart and do recovery process and success.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220228064606.8981-4-quic_wgong@quicinc.com
2022-03-23 10:56:58 +02:00
Wen Gong
38194f3a60 ath11k: add synchronization operation between reconfigure of mac80211 and ath11k_base
ieee80211_reconfig() of mac80211 is the main function for recovery of
each ieee80211_hw and ath11k, and ath11k_core_reconfigure_on_crash()
is the main function for recovery of ath11k_base, it has more than
one ieee80211_hw and ath11k for each ath11k_base, so it need to add
synchronization between them, otherwise it has many issue.

For example, when ath11k_core_reconfigure_on_crash() is not complete,
mac80211 send a hw scan request to ath11k, it leads firmware crash,
because firmware has not been initialized at that moment, firmware
is only finished downloaded and loaded, it can not receive scan
command.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220228064606.8981-3-quic_wgong@quicinc.com
2022-03-23 10:56:37 +02:00
Wen Gong
13da397f88 ath11k: add support for device recovery for QCA6390/WCN6855
Currently ath11k has device recovery logic, it is introduced by this
patch "ath11k: Add support for subsystem recovery" which is upstream
by https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=ath11k-bringup&id=3a7b4838b6f6f234239f263ef3dc02e612a083ad.

The patch is for AHB devices such as IPQ8074, it has remote proc module
which is used to download the firmware and boots the processor which
firmware is running on. If firmware crashed, remote proc module will
detect it and download and boot firmware again. Below command will
trigger a firmware crash, and then user can test feature of device
recovery.

Test command:
echo assert > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash
echo assert > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash

Unfortunately, QCA6390 is PCIe bus, it does not have the remote proc
module, it use mhi module to communicate between firmware and ath11k.
So ath11k does not support device recovery for QCA6390 currently.

This patch is to add the extra logic which is different for QCA6390.
When firmware crashed, MHI_CB_EE_RDDM event will be indicate by
firmware and then ath11k_mhi_op_status_cb which is the callback of
mhi_controller will receive the MHI_CB_EE_RDDM event, then ath11k
will start to do recovery process, ath11k_core_reset() calls
ath11k_hif_power_down()/ath11k_hif_power_up(), then the mhi/ath11k
will start to download and boot firmware. There are some logic to
avoid deadloop recovery and two simultaneous recovery operations.
And because it has muti-radios for the soc, so it add some logic
in ath11k_mac_op_reconfig_complete() to make sure all radios has
reconfig complete and then complete the device recovery.

Also it add workqueue_aux, because ab->workqueue is used when receive
ATH11K_QMI_EVENT_FW_READY in recovery process(queue_work(ab->workqueue,
&ab->restart_work)), and ath11k_core_reset will wait for max
ATH11K_RESET_TIMEOUT_HZ for the previous restart_work finished, if
ath11k_core_reset also queued in ab->workqueue, then it will delay
restart_work of previous recovery and lead previous recovery fail.

ath11k recovery success for QCA6390/WCN6855 after apply this patch.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220228064606.8981-2-quic_wgong@quicinc.com
2022-03-23 10:56:16 +02:00
Wen Gong
0c104b6163 ath11k: disable regdb support for QCA6390
Currently it does not have regdb files for QCA6390, so disable its regdb
support feature now.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-05266-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220319023543.14288-3-quic_wgong@quicinc.com
2022-03-23 10:53:16 +02:00
Wen Gong
7fb376ad7d ath11k: remove unused ATH11K_BD_IE_BOARD_EXT
Currently ATH11K_BD_IE_BOARD_EXT is not used, so remove it.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220319023543.14288-2-quic_wgong@quicinc.com
2022-03-23 10:52:55 +02:00
Niels Dossche
2db80f9386 ath11k: acquire ab->base_lock in unassign when finding the peer by addr
ath11k_peer_find_by_addr states via lockdep that ab->base_lock must be
held when calling that function in order to protect the list. All
callers except ath11k_mac_op_unassign_vif_chanctx have that lock
acquired when calling ath11k_peer_find_by_addr. That lock is also not
transitively held by a path towards ath11k_mac_op_unassign_vif_chanctx.
The solution is to acquire the lock when calling
ath11k_peer_find_by_addr inside ath11k_mac_op_unassign_vif_chanctx.

I am currently working on a static analyser to detect missing locks and
this was a reported case. I manually verified the report by looking at
the code, but I do not have real hardware so this is compile tested
only.

Fixes: 701e48a43e ("ath11k: add packet log support for QCA6390")
Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220314215253.92658-1-dossche.niels@gmail.com
2022-03-23 10:51:52 +02:00
Hari Chandrakanthan
72a9bff386 ath11k: change fw build id format in driver init log
Currently fw build id is printed during init as follows.

fw_version 0x250684a5 fw_build_timestamp 2021-07-13 10:57
fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

The string "QC_IMAGE_VERSION_STRING=" is removed from the log
to improve readability.

With this patch the fw build id is printed during init as follows.
fw_version 0x250684a5 fw_build_timestamp 2021-07-13 10:57
fw_build_id WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Signed-off-by: Hari Chandrakanthan <quic_haric@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1646825065-7736-1-git-send-email-quic_haric@quicinc.com
2022-03-21 12:55:44 +02:00
Karthikeyan Periyasamy
997dc60f08 ath11k: Refactor the peer delete
Introduce new helper function for peer delete to reuse this logic
in all peer cleanup procedures. Found this in code review.
Also this change is applicable for all the platform.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01067-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1646024079-26391-1-git-send-email-quic_periyasa@quicinc.com
2022-03-21 12:54:35 +02:00
Carl Huang
a16d9b50cf ath11k: support GTK rekey offload
Host sets GTK related info to firmware before WoW is enabled, and
gets rekey replay_count and then disables GTK rekey when WoW quits.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-7-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:36:23 +02:00
Carl Huang
c3c36bfe99 ath11k: support ARP and NS offload
Support ARP and NS offload in WoW state.

Tested this way: put machine A with QCA6390 to WoW state,
ping/ping6 machine A from another machine B, check sniffer to see
any ARP response and Neighbour advertisement from machine A.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-6-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:36:02 +02:00
Carl Huang
90bf5c8d0f ath11k: purge rx pktlog when entering WoW
This change is to purge rx pktlog when entering WoW and reap
the mon_status buffer to keep it empty. When leaving WoW, host
restarts the reap timer. In WoW state, it's not allowed to feed
into mon_status rings per firmware team's recommendation.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-5-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:35:41 +02:00
Carl Huang
c417b247ba ath11k: implement hardware data filter
Host needs to set hardware data filter before entering WoW to
let firmware drop needless broadcast/mulitcast frames to avoid
frequent wakeup. Host clears hardware data filter when leaving WoW.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-4-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:35:20 +02:00
Carl Huang
fec4b898f3 ath11k: Add WoW net-detect functionality
Implement net-detect feature by setting flag
WIPHY_WOWLAN_NET_DETECT if firmware supports this
feature. Driver sets the related PNO configuration
to firmware before entering WoW and firmware then
scans periodically and wakes up host if a specific
SSID is found.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-3-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:34:59 +02:00
Carl Huang
ba9177fcef ath11k: Add basic WoW functionalities
Implement basic WoW functionalities such as magic-packet, disconnect
and pattern. The logic is very similar to ath10k.

When WoW is configured, ath11k_core_suspend and ath11k_core_resume
are skipped as WoW configuration and hif suspend/resume are done in
ath11k_wow_op_suspend() and ath11k_wow_op_resume().

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-2-git-send-email-quic_cjhuang@quicinc.com
2022-03-18 17:34:37 +02:00
Lv Ruyi (CGEL ZTE)
57fe207f75 ath11k: remove unneeded flush_workqueue
All work currently pending will be done first by calling destroy_workqueue,
so there is no need to flush it explicitly.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi (CGEL ZTE) <lv.ruyi@zte.com.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220301013246.2052570-1-lv.ruyi@zte.com.cn
2022-03-10 17:50:57 +02:00
Kalle Valo
c7723917a4 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.18. Major changes:

ath11k

* debugfs interface to configure firmware debug log level

* debugfs interface to test Target Wake Time (TWT)

* provide 802.11ax High Efficiency (HE) data via radiotap

ath9k

* use hw_random API instead of directly dumping into random.c

wcn36xx

* fix wcn3660 to work on 5 GHz band
2022-02-25 11:36:57 +02:00
Venkateswara Naralasetty
691425b4a4 ath11k: add dbring debug support
Target copies spectral report and CFR report through dbring to
host for further processing. This mechanism involves ring and
buffer management in the Host, FW, and uCode, where improper
tail pointer update issues are seen.

This dbring debug support help to debug such issues by tracking
head and tail pointer movement along with the timestamp at which
each buffer is received and replenished.

Provide a debugfs interface to enalbe/disable dbring debug
support and dump the dbring debug entries.

Also introduced a new hardware param to add dbring debugfs support
for few hardwares which are using dbings.

Usage:

echo <dbr_id> <val> > /sys/kernel/debug/ath11k/ipq8074_2/
mac0/enable_dbr_debug

dbr_id: 0 for spectral and 1 for CFR
val: 0 - disable, 1 - enable.

Tested-on: IPQ8074 WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645366059-11798-1-git-send-email-quic_vnaralas@quicinc.com
2022-02-24 11:02:48 +02:00
Pradeep Kumar Chitrapu
ab0a9ef605 ath11k: translate HE status to radiotap format
Translate HE status to radiotap format. This uses HE radiotap
definitions from include/net/ieee80211_radiotap.h.

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-4-pradeepc@codeaurora.org
2022-02-24 10:59:41 +02:00
Pradeep Kumar Chitrapu
01d2f285e3 ath11k: decode HE status tlv
Add new bitmasks and macro definitions required for parsing HE
status tlvs. Decode HE status tlvs, which will used in dumping
ppdu stats as well as updating radiotap headers.

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-3-pradeepc@codeaurora.org
2022-02-24 10:59:20 +02:00
Pradeep Kumar Chitrapu
94739d45c3 ath11k: switch to using ieee80211_tx_status_ext()
This allows us to pass HE rates down into the stack.

Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-2-pradeepc@codeaurora.org
2022-02-24 10:58:59 +02:00
Baochen Qiang
261b075195 ath11k: Fix frames flush failure caused by deadlock
We are seeing below warnings:

kernel: [25393.301506] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0
kernel: [25398.421509] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0
kernel: [25398.421831] ath11k_pci 0000:01:00.0: dropping mgmt frame for vdev 0, is_started 0

this means ath11k fails to flush mgmt. frames because wmi_mgmt_tx_work
has no chance to run in 5 seconds.

By setting /proc/sys/kernel/hung_task_timeout_secs to 20 and increasing
ATH11K_FLUSH_TIMEOUT to 50 we get below warnings:

kernel: [  120.763160] INFO: task wpa_supplicant:924 blocked for more than 20 seconds.
kernel: [  120.763169]       Not tainted 5.10.90 #12
kernel: [  120.763177] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kernel: [  120.763186] task:wpa_supplicant  state:D stack:    0 pid:  924 ppid:     1 flags:0x000043a0
kernel: [  120.763201] Call Trace:
kernel: [  120.763214]  __schedule+0x785/0x12fa
kernel: [  120.763224]  ? lockdep_hardirqs_on_prepare+0xe2/0x1bb
kernel: [  120.763242]  schedule+0x7e/0xa1
kernel: [  120.763253]  schedule_timeout+0x98/0xfe
kernel: [  120.763266]  ? run_local_timers+0x4a/0x4a
kernel: [  120.763291]  ath11k_mac_flush_tx_complete+0x197/0x2b1 [ath11k 13c3a9bf37790f4ac8103b3decf7ab4008ac314a]
kernel: [  120.763306]  ? init_wait_entry+0x2e/0x2e
kernel: [  120.763343]  __ieee80211_flush_queues+0x167/0x21f [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763378]  __ieee80211_recalc_idle+0x105/0x125 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763411]  ieee80211_recalc_idle+0x14/0x27 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763441]  ieee80211_free_chanctx+0x77/0xa2 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763473]  __ieee80211_vif_release_channel+0x100/0x131 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763540]  ieee80211_vif_release_channel+0x66/0x81 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763572]  ieee80211_destroy_auth_data+0xa3/0xe6 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763612]  ieee80211_mgd_deauth+0x178/0x29b [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763654]  cfg80211_mlme_deauth+0x1a8/0x22c [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763697]  nl80211_deauthenticate+0xfa/0x123 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763715]  genl_rcv_msg+0x392/0x3c2
kernel: [  120.763750]  ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763782]  ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763802]  ? genl_rcv+0x36/0x36
kernel: [  120.763814]  netlink_rcv_skb+0x89/0xf7
kernel: [  120.763829]  genl_rcv+0x28/0x36
kernel: [  120.763840]  netlink_unicast+0x179/0x24b
kernel: [  120.763854]  netlink_sendmsg+0x393/0x401
kernel: [  120.763872]  sock_sendmsg+0x72/0x76
kernel: [  120.763886]  ____sys_sendmsg+0x170/0x1e6
kernel: [  120.763897]  ? copy_msghdr_from_user+0x7a/0xa2
kernel: [  120.763914]  ___sys_sendmsg+0x95/0xd1
kernel: [  120.763940]  __sys_sendmsg+0x85/0xbf
kernel: [  120.763956]  do_syscall_64+0x43/0x55
kernel: [  120.763966]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
kernel: [  120.763977] RIP: 0033:0x79089f3fcc83
kernel: [  120.763986] RSP: 002b:00007ffe604f0508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
kernel: [  120.763997] RAX: ffffffffffffffda RBX: 000059b40e987690 RCX: 000079089f3fcc83
kernel: [  120.764006] RDX: 0000000000000000 RSI: 00007ffe604f0558 RDI: 0000000000000009
kernel: [  120.764014] RBP: 00007ffe604f0540 R08: 0000000000000004 R09: 0000000000400000
kernel: [  120.764023] R10: 00007ffe604f0638 R11: 0000000000000246 R12: 000059b40ea04980
kernel: [  120.764032] R13: 00007ffe604f0638 R14: 000059b40e98c360 R15: 00007ffe604f0558
...
kernel: [  120.765230] INFO: task kworker/u32:26:4239 blocked for more than 20 seconds.
kernel: [  120.765238]       Not tainted 5.10.90 #12
kernel: [  120.765245] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kernel: [  120.765253] task:kworker/u32:26  state:D stack:    0 pid: 4239 ppid:     2 flags:0x00004080
kernel: [  120.765284] Workqueue: phy0 ieee80211_iface_work [mac80211]
kernel: [  120.765295] Call Trace:
kernel: [  120.765306]  __schedule+0x785/0x12fa
kernel: [  120.765316]  ? find_held_lock+0x3d/0xb2
kernel: [  120.765331]  schedule+0x7e/0xa1
kernel: [  120.765340]  schedule_preempt_disabled+0x15/0x1e
kernel: [  120.765349]  __mutex_lock_common+0x561/0xc0d
kernel: [  120.765375]  ? ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765390]  mutex_lock_nested+0x20/0x26
kernel: [  120.765416]  ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765430]  ? skb_dequeue+0x54/0x5e
kernel: [  120.765456]  ? ieee80211_iface_work+0x7b/0x339 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765485]  process_one_work+0x270/0x504
kernel: [  120.765501]  worker_thread+0x215/0x376
kernel: [  120.765514]  kthread+0x159/0x168
kernel: [  120.765526]  ? pr_cont_work+0x5b/0x5b
kernel: [  120.765536]  ? kthread_blkcg+0x31/0x31
kernel: [  120.765550]  ret_from_fork+0x22/0x30
...
kernel: [  120.765867] Showing all locks held in the system:
...
kernel: [  120.766164] 5 locks held by wpa_supplicant/924:
kernel: [  120.766172]  #0: ffffffffb1e63eb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x36
kernel: [  120.766197]  #1: ffffffffb1e5b1c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x2a/0x15c [cfg80211]
kernel: [  120.766238]  #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: nl80211_deauthenticate+0xde/0x123 [cfg80211]
kernel: [  120.766279]  #3: ffff99f09df12a48 (&local->mtx){+.+.}-{3:3}, at: ieee80211_destroy_auth_data+0x9b/0xe6 [mac80211]
kernel: [  120.766321]  #4: ffff99f09df12ce0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_vif_release_channel+0x5e/0x81 [mac80211]
...
kernel: [  120.766585] 3 locks held by kworker/u32:26/4239:
kernel: [  120.766593]  #0: ffff99f04458f948 ((wq_completion)phy0){+.+.}-{0:0}, at: process_one_work+0x19a/0x504
kernel: [  120.766621]  #1: ffffbad54b3cfe50 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x1c0/0x504
kernel: [  120.766649]  #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_sta_work+0x3e/0x1232 [mac80211]

With above info the issue is clear: First wmi_mgmt_tx_work is inserted
to local->workqueue after sdata->work inserted, then wpa_supplicant
acquires wdev->mtx in nl80211_deauthenticate and finally calls
ath11k_mac_op_flush where it waits all mgmt. frames to be sent out by
wmi_mgmt_tx_work. Meanwhile, sdata->work is blocked by wdev->mtx in
ieee80211_sta_work, as a result wmi_mgmt_tx_work has no chance to run.

Change to use ab->workqueue instead of local->workqueue to fix this issue.

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217084545.18844-1-quic_bqiang@quicinc.com
2022-02-21 12:29:18 +02:00
Seevalamuthu Mariappan
a19c0e104d ath11k: Handle failure in qmi firmware ready
In some scenarios like firmware crashes during init time
and hardware gets restarted after qmi firmware ready event.
During restart, ath11k_core_qmi_firmware_ready() returns timeout.
But, this failure is not handled and ATH11K_FLAG_REGISTERED is set.

When hardware restart completed, firmware sends firmware ready event
again. Since ATH11K_FLAG_REGISTERED is already set, ath11k handles
this as core restart. Inits are not done because of previous timeout.
But ath11k_core_restart does deinit's which causes NULL pointer crash.

Fix this by handling failure from ath11k_core_qmi_firmware_ready().

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-00881-QCAHKSWPL_SILICONZ-1

Signed-off-by: Seevalamuthu Mariappan <quic_seevalam@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645079195-13564-1-git-send-email-quic_seevalam@quicinc.com
2022-02-21 12:28:17 +02:00
Rameshkumar Sundaram
f2180ccb52 ath11k: Invalidate cached reo ring entry before accessing it
REO2SW ring descriptor is currently allocated in cacheable memory.
While reaping reo ring entries on second trial after updating head
pointer, first entry is not invalidated before accessing it.

This results in host reaping and using cached descriptor which is
already overwritten in memory by DMA device (HW).
Since the contents of descriptor(buffer id, peer info and other information
bits) are outdated host throws errors like below while parsing corresponding
MSDU's and drops them.

[347712.048904] ath11k_pci 0004:01:00.0: msdu_done bit in attention is not set
[349173.355503] ath11k_pci 0004:01:00.0: frame rx with invalid buf_id 962

Move the try_again: label above  ath11k_hal_srng_access_begin()
so that first entry will be invalidated and prefetched.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: 6452f0a3d5 ("ath11k: allocate dst ring descriptors from cacheable memory")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645000354-32558-1-git-send-email-quic_ramess@quicinc.com
2022-02-21 12:27:19 +02:00
Gustavo A. R. Silva
e9e591686c ath11k: Replace zero-length arrays with flexible-array members
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220216194836.GA904035@embeddedor
2022-02-21 12:24:34 +02:00
Wen Gong
03e0add742 ath11k: configure RDDM size to mhi for recovery by firmware
The rddm_size is needed by firmware while mhi enter RDDM state, add it
to support recovery when ath11k receive MHI_CB_EE_RDDM message.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-4-quic_wgong@quicinc.com
2022-02-21 12:05:41 +02:00
Carl Huang
e52b6a02bf ath11k: fix invalid m3 buffer address
This is to fix m3 buffer reuse issue as m3_mem->size isn't set to
ZERO in free function, which leads invalid m3 downloading to
firmware and firmware crashed.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-3-quic_wgong@quicinc.com
2022-02-21 12:05:20 +02:00
Wen Gong
5f71968e3c ath11k: add ath11k_qmi_free_resource() for recovery
ath11k_qmi_free_target_mem_chunk() and ath11k_qmi_m3_free() is static
in qmi.c, they are needed for recovery, export them in a new function.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-2-quic_wgong@quicinc.com
2022-02-21 12:04:59 +02:00
Mordechay Goodstein
2a2c86f15e ieee80211: add EHT 1K aggregation definitions
We add the fields for parsing extended ADDBA request/respond,
and new max 1K aggregation for limit ADDBA request/respond.

Adjust drivers to use the proper macro, IEEE80211_MAX_AMPDU_BUF ->
IEEE80211_MAX_AMPDU_BUF_HE.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Link: https://lore.kernel.org/r/20220214173004.b8b447ce95b7.I0ee2554c94e89abc7a752b0f7cc7fd79c273efea@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-02-16 15:42:18 +01:00
Karthikeyan Kathirvel
1e15aacd12 ath11k: fix destination monitor ring out of sync
More than 20000 PPDU id jumping causing status ring and destination
ring processing not sync. The status ring is processed and the
destination ring is not processed. Since destination is not reaped for
so long, backpressure occurs at the destination ring.

To address this issue update the PPDU id with the latest PPDU, this
will allow the destination ring to be reaped and will prevent the
rings from getting out of sync.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1.r1-00026-QCAHKSWPL_SILICONZ-2
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220210064706.6171-1-quic_kathirve@quicinc.com
2022-02-14 19:47:14 +02:00
Venkateswara Naralasetty
4f6dd92305 ath11k: fix radar detection in 160 Mhz
Radar detection fails in the secondary 80 MHz when the
the AP's primary 80 MHz is in non-DFS region in 160 MHz.

This is due to WMI channel flag WMI_CHAN_INFO_DFS_FREQ2 is not set
properly in case of the primary 80 MHz is in non-DFS region.
HALPHY detects the radar pulses in the secondary 80 MHz only when
WMI_CHAN_INFO_DFS_FREQ2 is set.

Fix this issue by setting WMI channel flag WMI_CHAN_INFO_DFS_FREQ2
based on the radar_enabled flag from the channel context.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644416019-820-2-git-send-email-quic_vnaralas@quicinc.com
2022-02-14 19:46:26 +02:00
Venkateswara Naralasetty
5ed98fb704 ath11k: fix WARN_ON during ath11k_mac_update_vif_chan
Fix WARN_ON() from ath11k_mac_update_vif_chan() if vdev is not up.
Since change_chanctx can be called even before vdev_up from
ieee80211_start_ap->ieee80211_vif_use_channel->
ieee80211_recalc_radar_chanctx.

Do vdev stop followed by a vdev start in case of vdev is down.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644416019-820-1-git-send-email-quic_vnaralas@quicinc.com
2022-02-14 19:46:24 +02:00
Wen Gong
8c4c567fa2 ath11k: fix uninitialized rate_idx in ath11k_dp_tx_update_txcompl()
The rate_idx which passed to ath11k_debugfs_sta_add_tx_stats() by
ath11k_dp_tx_update_txcompl() is not initialized, add initialization
for it.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Fixes: 1b8bb94c06 ("ath11k: report tx bitrate for iw wlan station dump")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060816.423-1-quic_wgong@quicinc.com
2022-02-14 19:45:29 +02:00
Avraham Stern
ea5907db2a mac80211: fix struct ieee80211_tx_info size
The size of the status_driver_data field was not adjusted when
the is_valid_ack_signal field was added.
Since the size of struct ieee80211_tx_info is limited, replace
the is_valid_ack_signal field with a flags field, and adjust the
struct size accordingly.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220202104617.0ff363d4fa56.I45792c0187034a6d0e1c99a7db741996ef7caba3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-02-04 16:26:53 +01:00
John Crispin
fe98a6137d ath11k: add debugfs for TWT debug calls
New debugfs files to manually add/delete/pause/resume TWT
dialogs for test/debug purposes.

The debugfs files expect the following parameters
- Add dialog
echo '<Peer_MAC> <Dialog_ID> <Wake_Interval_Usec> <Wake_Interval_Mantis>
 <Wake_Duration_Usec> <First_SP_Offset> <TWT_Command>
 <1:Broadcast /0:Individual> <1:Triggered / 0:Untriggered>
 <1:Unannounced /0:Announced> <1:Protected / 0:Unprotected>' >
 /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/add_dialog

Example (Non-triggered and un-announced):
echo '00:03:7F:20:13:52 1 102400 100 30720 20480 4 0 0 1 0' >
 /sys/kernel/debug/ieee80211/phy0/netdev:wlan0/twt/add_dialog

- Delete dialog
echo '<Peer_MAC> <Dialog_ID>' >
 /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/del_dialog

- Pause dialog
echo '<Peer_MAC> <Dialog_ID>' >
 /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/pause_dialog

- Resume dialog
echo '<Peer_MAC> <Dialog_ID> <SP_Offset_Usec> <Next_TWT_Size>' >
 /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/resume_dialog

Example:
echo '00:03:7F:20:13:52 1 2000000 3' >
 /sys/kernel/debug/ieee80211/phy0/netdev:wlan0/twt/resume_dialog

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01179-QCAHKSWPL_SILICONZ-1
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220131031043.1295-2-alokad@codeaurora.org
2022-02-01 12:57:08 +02:00
John Crispin
3d00e8b5b8 ath11k: add WMI calls to manually add/del/pause/resume TWT dialogs
These calls are used for debugging and will be required for WFA
certification tests.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01179-QCAHKSWPL_SILICONZ-1
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220131031043.1295-1-alokad@codeaurora.org
2022-02-01 12:57:07 +02:00
Seevalamuthu Mariappan
f295ad9129 ath11k: Add debugfs interface to configure firmware debug log level
Add debugfs interface "fw_dbglog_config" to configure firmware log level.
Configuration is done via WMI command WMI_DBGLOG_CFG_CMDID.

Command to configure,
echo "<dbglog_param> <values>" >
/sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config

where dbglog_param can be,
  1) WMI_DEBUG_LOG_PARAM_LOG_LEVEL - configure log level for a given module
     here, <values> = <0xaaaa00bb>, 'aaaa' - module id and 'bb' - loglevel
  2) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE - enable debug log for a given vdev
     here, <values> = vdev_id
  3) WMI_DEBUG_LOG_PARAM_VDEV_DISABLE - disable debug log for a given vdev
     except ERROR logs
     here, <values> = vdev_id
  4) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE_BITMAP - set vdev enable bitmap
       here, <values> = vdev_enable_bitmap
  5) WMI_DEBUG_LOG_PARAM_MOD_ENABLE_BITMAP - set a given log level to all the
     modules specified in the module bitmap. Command to configure for this log param,

     $ echo "5 <values> <module_id_index> <is_end>" >
         /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
     here,
                <values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
                          'bb' - loglevel
                <module_id_index> = index of module bitmap. Max module id is 512.
                                    So, module_id_index is 0-15.
                <is_end> = to indicate if more configuration to follow.

  6) WMI_DEBUG_LOG_PARAM_WOW_MOD_ENABLE_BITMAP - Wow mode specific logging enable.
     Command to configure for this log param,

      $ echo "6 <values> <module_id_index> <is_end>" >
          /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
      here,
                 <values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
                              'bb' - loglevel
                 <module_id_index> = index of module bitmap. Max module id is 512.
                                     So, module_id_index is 0-15.
                 <is_end> = to indicate if more configuration to follow.

Sample command usage,

To enable module WLAN_MODULE_WMI and log level ATH11K_FW_DBGLOG_VERBOSE,
echo "1 0x10001" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config

To enable module bit map from 32 to 63 and log level ATH11K_FW_DBGLOG_VERBOSE,
echo "5 0xffffffff00000001 1 1" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1

Signed-off-by: Seevalamuthu Mariappan <quic_seevalam@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642405103-32302-1-git-send-email-quic_seevalam@quicinc.com
2022-02-01 12:56:14 +02:00
Kalle Valo
3df6d74aed ath11k: mhi: use mhi_sync_power_up()
If amss.bin was missing ath11k would crash during 'rmmod ath11k_pci'. The
reason for that was that we were using mhi_async_power_up() which does not
check any errors. But mhi_sync_power_up() on the other hand does check for
errors so let's use that to fix the crash.

I was not able to find a reason why an async version was used.
ath11k_mhi_start() (which enables state ATH11K_MHI_POWER_ON) is called from
ath11k_hif_power_up(), which can sleep. So sync version should be safe to use
here.

[  145.569731] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN PTI
[  145.569789] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[  145.569843] CPU: 2 PID: 1628 Comm: rmmod Kdump: loaded Tainted: G        W         5.16.0-wt-ath+ #567
[  145.569898] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
[  145.569956] RIP: 0010:ath11k_hal_srng_access_begin+0xb5/0x2b0 [ath11k]
[  145.570028] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ec 01 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 <0f> b6 14 02 48 89 e8 83 e0 07 83 c0 03 45 85 ed 75 48 38 d0 7c 08
[  145.570089] RSP: 0018:ffffc900025d7ac0 EFLAGS: 00010246
[  145.570144] RAX: dffffc0000000000 RBX: ffff88814fca2dd8 RCX: 1ffffffff50cb455
[  145.570196] RDX: 0000000000000000 RSI: ffff88814fca2dd8 RDI: ffff88814fca2e80
[  145.570252] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffffa8659497
[  145.570329] R10: fffffbfff50cb292 R11: 0000000000000001 R12: ffff88814fca0000
[  145.570410] R13: 0000000000000000 R14: ffff88814fca2798 R15: ffff88814fca2dd8
[  145.570465] FS:  00007fa399988540(0000) GS:ffff888233e00000(0000) knlGS:0000000000000000
[  145.570519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  145.570571] CR2: 00007fa399b51421 CR3: 0000000137898002 CR4: 00000000003706e0
[  145.570623] Call Trace:
[  145.570675]  <TASK>
[  145.570727]  ? ath11k_ce_tx_process_cb+0x34b/0x860 [ath11k]
[  145.570797]  ath11k_ce_tx_process_cb+0x356/0x860 [ath11k]
[  145.570864]  ? tasklet_init+0x150/0x150
[  145.570919]  ? ath11k_ce_alloc_pipes+0x280/0x280 [ath11k]
[  145.570986]  ? tasklet_clear_sched+0x42/0xe0
[  145.571042]  ? tasklet_kill+0xe9/0x1b0
[  145.571095]  ? tasklet_clear_sched+0xe0/0xe0
[  145.571148]  ? irq_has_action+0x120/0x120
[  145.571202]  ath11k_ce_cleanup_pipes+0x45a/0x580 [ath11k]
[  145.571270]  ? ath11k_pci_stop+0x10e/0x170 [ath11k_pci]
[  145.571345]  ath11k_core_stop+0x8a/0xc0 [ath11k]
[  145.571434]  ath11k_core_deinit+0x9e/0x150 [ath11k]
[  145.571499]  ath11k_pci_remove+0xd2/0x260 [ath11k_pci]
[  145.571553]  pci_device_remove+0x9a/0x1c0
[  145.571605]  __device_release_driver+0x332/0x660
[  145.571659]  driver_detach+0x1e7/0x2c0
[  145.571712]  bus_remove_driver+0xe2/0x2d0
[  145.571772]  pci_unregister_driver+0x21/0x250
[  145.571826]  __do_sys_delete_module+0x30a/0x4b0
[  145.571879]  ? free_module+0xac0/0xac0
[  145.571933]  ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370
[  145.571986]  ? syscall_enter_from_user_mode+0x1d/0x50
[  145.572039]  ? lockdep_hardirqs_on+0x79/0x100
[  145.572097]  do_syscall_64+0x3b/0x90
[  145.572153]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220127090117.2024-2-kvalo@kernel.org
2022-01-31 16:11:48 +02:00
Kalle Valo
b4f4c56459 ath11k: pci: fix crash on suspend if board file is not found
Mario reported that the kernel was crashing on suspend if ath11k was not able
to find a board file:

[  473.693286] PM: Suspending system (s2idle)
[  473.693291] printk: Suspending console(s) (use no_console_suspend to debug)
[  474.407787] BUG: unable to handle page fault for address: 0000000000002070
[  474.407791] #PF: supervisor read access in kernel mode
[  474.407794] #PF: error_code(0x0000) - not-present page
[  474.407798] PGD 0 P4D 0
[  474.407801] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  474.407805] CPU: 2 PID: 2350 Comm: kworker/u32:14 Tainted: G        W         5.16.0 #248
[...]
[  474.407868] Call Trace:
[  474.407870]  <TASK>
[  474.407874]  ? _raw_spin_lock_irqsave+0x2a/0x60
[  474.407882]  ? lock_timer_base+0x72/0xa0
[  474.407889]  ? _raw_spin_unlock_irqrestore+0x29/0x3d
[  474.407892]  ? try_to_del_timer_sync+0x54/0x80
[  474.407896]  ath11k_dp_rx_pktlog_stop+0x49/0xc0 [ath11k]
[  474.407912]  ath11k_core_suspend+0x34/0x130 [ath11k]
[  474.407923]  ath11k_pci_pm_suspend+0x1b/0x50 [ath11k_pci]
[  474.407928]  pci_pm_suspend+0x7e/0x170
[  474.407935]  ? pci_pm_freeze+0xc0/0xc0
[  474.407939]  dpm_run_callback+0x4e/0x150
[  474.407947]  __device_suspend+0x148/0x4c0
[  474.407951]  async_suspend+0x20/0x90
dmesg-efi-164255130401001:
Oops#1 Part1
[  474.407955]  async_run_entry_fn+0x33/0x120
[  474.407959]  process_one_work+0x220/0x3f0
[  474.407966]  worker_thread+0x4a/0x3d0
[  474.407971]  kthread+0x17a/0x1a0
[  474.407975]  ? process_one_work+0x3f0/0x3f0
[  474.407979]  ? set_kthread_struct+0x40/0x40
[  474.407983]  ret_from_fork+0x22/0x30
[  474.407991]  </TASK>

The issue here is that board file loading happens after ath11k_pci_probe()
succesfully returns (ath11k initialisation happends asynchronously) and the
suspend handler is still enabled, of course failing as ath11k is not properly
initialised. Fix this by checking ATH11K_FLAG_QMI_FAIL during both suspend and
resume.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Reported-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215504
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220127090117.2024-1-kvalo@kernel.org
2022-01-31 16:11:47 +02:00
Baochen Qiang
648ab4720c ath11k: Fix missing rx_desc_get_ldpc_support in wcn6855_ops
rx_desc_get_ldpc_support is missing in wcn6855_ops, resulting on WCN6855 a
kernel crash after connecting to an AP and waiting for few minutes. Fix it by
implementing WCN6855's version of this field and adding it to wcn6855_ops.

Crash stack:
[  184.862605] BUG: kernel NULL pointer dereference, address: 0000000000000000
[  184.862615] #PF: supervisor instruction fetch in kernel mode
[  184.862620] #PF: error_code(0x0010) - not-present page
[  184.862626] PGD 0 P4D 0
[  184.862634] Oops: 0010 [#1] PREEMPT SMP PTI
[  184.862642] CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Not tainted 5.16.0-wt-ath+ #1
[  184.862651] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0059.2019.1112.1124 11/12/2019
[  184.862656] RIP: 0010:0x0
[  184.862669] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[  184.862673] RSP: 0018:ffff9eedc003cca8 EFLAGS: 00010202
[  184.862680] RAX: 0000000000000000 RBX: ffff9eedc003cd30 RCX: 0000000000000002
[  184.862686] RDX: 0000000000000002 RSI: ffffffffc1773458 RDI: ffff8eb5843de240
[  184.862692] RBP: ffff8eb59685a0e0 R08: 0000000000000001 R09: ffff8eb6fef2b000
[  184.862700] R10: ffff9eedc003cd70 R11: ffff8eb5880a9ff0 R12: ffff8eb5843de240
[  184.862707] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000003
[  184.862714] FS:  0000000000000000(0000) GS:ffff8eb6f6c40000(0000) knlGS:0000000000000000
[  184.862723] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.862733] CR2: ffffffffffffffd6 CR3: 000000002f60a001 CR4: 00000000003706e0
[  184.862743] Call Trace:
[  184.862751]  <IRQ>
[  184.862759]  ath11k_dp_rx_h_ppdu+0x210/0x350 [ath11k]
[  184.862841]  ath11k_dp_rx_process_received_packets+0x1e6/0x6b0 [ath11k]
[  184.862891]  ath11k_dp_process_rx+0x32d/0x3e0 [ath11k]

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Fixes: b3febdccde ("ath11k: add LDPC FEC type in 802.11 radiotap header")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220126010144.2090-1-quic_bqiang@quicinc.com
2022-01-31 16:06:01 +02:00
Anilkumar Kolli
dca857f07d ath11k: Fix uninitialized symbol 'rx_buf_sz'
Add missing else statement in ath11k_dp_rx_process_mon_status()
to fix below smatch warnings,
    drivers/net/wireless/ath/ath11k/dp_rx.c:3105
    ath11k_dp_rx_process_mon_status()
    error: uninitialized symbol 'rx_buf_sz'.

Fixes: ab18e3bc1c ("ath11k: Fix pktlog lite rx events")

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anilkumar Kolli <quic_akolli@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642605793-13518-1-git-send-email-quic_akolli@quicinc.com
2022-01-31 16:00:01 +02:00
Venkateswara Naralasetty
22b59cb965 ath11k: fix kernel panic during unload/load ath11k modules
Call netif_napi_del() from ath11k_ahb_free_ext_irq() to fix
the following kernel panic when unload/load ath11k modules
for few iterations.

[  971.201365] Unable to handle kernel paging request at virtual address 6d97a208
[  971.204227] pgd = 594c2919
[  971.211478] [6d97a208] *pgd=00000000
[  971.214120] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[  971.412024] CPU: 2 PID: 4435 Comm: insmod Not tainted 5.4.89 #0
[  971.434256] Hardware name: Generic DT based system
[  971.440165] PC is at napi_by_id+0x10/0x40
[  971.445019] LR is at netif_napi_add+0x160/0x1dc

[  971.743127] (napi_by_id) from [<807d89a0>] (netif_napi_add+0x160/0x1dc)
[  971.751295] (netif_napi_add) from [<7f1209ac>] (ath11k_ahb_config_irq+0xf8/0x414 [ath11k_ahb])
[  971.759164] (ath11k_ahb_config_irq [ath11k_ahb]) from [<7f12135c>] (ath11k_ahb_probe+0x40c/0x51c [ath11k_ahb])
[  971.768567] (ath11k_ahb_probe [ath11k_ahb]) from [<80666864>] (platform_drv_probe+0x48/0x94)
[  971.779670] (platform_drv_probe) from [<80664718>] (really_probe+0x1c8/0x450)
[  971.789389] (really_probe) from [<80664cc4>] (driver_probe_device+0x15c/0x1b8)
[  971.797547] (driver_probe_device) from [<80664f60>] (device_driver_attach+0x44/0x60)
[  971.805795] (device_driver_attach) from [<806650a0>] (__driver_attach+0x124/0x140)
[  971.814822] (__driver_attach) from [<80662adc>] (bus_for_each_dev+0x58/0xa4)
[  971.823328] (bus_for_each_dev) from [<80663a2c>] (bus_add_driver+0xf0/0x1e8)
[  971.831662] (bus_add_driver) from [<806658a4>] (driver_register+0xa8/0xf0)
[  971.839822] (driver_register) from [<8030269c>] (do_one_initcall+0x78/0x1ac)
[  971.847638] (do_one_initcall) from [<80392524>] (do_init_module+0x54/0x200)
[  971.855968] (do_init_module) from [<803945b0>] (load_module+0x1e30/0x1ffc)
[  971.864126] (load_module) from [<803948b0>] (sys_init_module+0x134/0x17c)
[  971.871852] (sys_init_module) from [<80301000>] (ret_fast_syscall+0x0/0x50)

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.6.0.1-00760-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642583973-21599-1-git-send-email-quic_vnaralas@quicinc.com
2022-01-31 15:59:05 +02:00
Venkateswara Naralasetty
a76ed59163 ath11k: Rename ath11k_ahb_ext_irq_config
Rename ath11k_ahb_ext_irq_config() to ath11k_ahb_config_ext_irq()
for just symmetry with ath11k_ahb_free_ext_irq().

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642583893-21485-1-git-send-email-quic_vnaralas@quicinc.com
2022-01-31 15:57:32 +02:00
Kalle Valo
3898da3ba4 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.18. Major changes:

ath11k

* add LDPC FEC type in 802.11 radiotap header

* enable RX PPDU stats in monitor co-exist mode

wcn36xx

* implement survey reporting
2022-01-28 14:53:24 +02:00