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path: root/drivers/net/wireless/ath
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2022-03-25ath9k: split set11nRateFlags and set11nChainSelWenli Looi3-10/+14
This makes the code clearer since set11nRateFlags currently sets both the rate flags and chain sel. This may also be required for QCN550x support, where the rate flags and chain sel are in separate fields. This change does not appear to affect the final binary. Signed-off-by: Wenli Looi <wlooi@ucalgary.ca> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220320233010.123106-3-wlooi@ucalgary.ca
2022-03-25ath9k: make ATH_SREV macros more consistentWenli Looi1-5/+5
This makes the macros more consistent and removes hidden dependencies on ah for macros that take _ah as a parameter. This change does not appear to affect the final binary. Signed-off-by: Wenli Looi <wlooi@ucalgary.ca> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220320233010.123106-2-wlooi@ucalgary.ca
2022-03-25ath11k: Add peer rhash table supportKarthikeyan Periyasamy5-24/+363
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
2022-03-25ath11k: add read variant from SMBIOS for download board dataWen Gong3-1/+93
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
2022-03-25ath11k: add fallback board name without variant while searching board-2.binWen Gong1-7/+41
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
2022-03-23ath11k: enable PLATFORM_CAP_PCIE_GLOBAL_RESET QMI host capabilityBaochen Qiang3-0/+11
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
2022-03-23ath11k: fix the warning of dev_wake in mhi_pm_disable_transition()Wen Gong1-4/+8
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 8e0559921f9a ("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
2022-03-23ath11k: Add hw-restart option to simulate_fw_crashWen Gong1-0/+4
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
2022-03-23ath11k: add synchronization operation between reconfigure of mac80211 and ↵Wen Gong3-8/+70
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
2022-03-23ath11k: add support for device recovery for QCA6390/WCN6855Wen Gong4-0/+132
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
2022-03-23ath11k: disable regdb support for QCA6390Wen Gong1-1/+1
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
2022-03-23ath11k: remove unused ATH11K_BD_IE_BOARD_EXTWen Gong1-1/+0
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
2022-03-23ath11k: acquire ab->base_lock in unassign when finding the peer by addrNiels Dossche1-3/+8
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: 701e48a43e15 ("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
2022-03-21ar5523: fix typo "to short" -> "too short"Tong Zhang1-1/+1
"RX USB to short" -> "RX USB too short" Signed-off-by: Tong Zhang <ztong0001@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-21ath11k: change fw build id format in driver init logHari Chandrakanthan1-1/+10
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
2022-03-21ath11k: Refactor the peer deleteKarthikeyan Periyasamy2-28/+19
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
2022-03-21ath10k: Use of_device_get_match_data() helperMeng Tang1-6/+3
Only the device data is needed, not the entire struct of_device_id. Use of_device_get_match_data() instead of of_match_device(). Signed-off-by: Meng Tang <tangmeng@uniontech.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220318025331.23030-1-tangmeng@uniontech.com
2022-03-21ath10k: Trigger sta disconnect on hardware restartYoughandhar Chintala2-0/+27
Currently after the hardware restart triggered from the driver, the station interface connection remains intact, since a disconnect trigger is not sent to userspace. This can lead to a problem in targets where the wifi mac sequence is added by the firmware. After the target restart, its wifi mac sequence number gets reset to zero. Hence AP to which our device is connected will receive frames with a wifi mac sequence number jump to the past, thereby resulting in the AP dropping all these frames, until the frame arrives with a wifi mac sequence number which AP was expecting. To avoid such frame drops, its better to trigger a station disconnect upon target hardware restart which can be done with API ieee80211_reconfig_disconnect exposed to mac80211. The other targets are not affected by this change, since the hardware params flag is not set. Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1 Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00048 Signed-off-by: Youghandhar Chintala <youghand@codeaurora.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220315082944.12406-3-youghand@codeaurora.org
2022-03-18ath6kl: fix typos in commentsJulia Lawall1-1/+1
Various spelling mistakes in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220314115354.144023-4-Julia.Lawall@inria.fr
2022-03-18ath9k: Use platform_get_irq() to get the interruptMinghao Chi1-5/+3
It is not recommened to use platform_get_resource(pdev, IORESOURCE_IRQ) for requesting IRQ's resources any more, as they can be not ready yet in case of DT-booting. platform_get_irq() instead is a recommended way for getting IRQ even if it was not retrieved earlier. It also makes code simpler because we're getting "int" value right away and no conversion from resource to int is required. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220314064501.2114002-1-chi.minghao@zte.com.cn
2022-03-18ath11k: support GTK rekey offloadCarl Huang5-1/+258
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
2022-03-18ath11k: support ARP and NS offloadCarl Huang5-0/+391
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
2022-03-18ath11k: purge rx pktlog when entering WoWCarl Huang1-0/+23
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
2022-03-18ath11k: implement hardware data filterCarl Huang3-0/+105
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
2022-03-18ath11k: Add WoW net-detect functionalityCarl Huang5-1/+510
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
2022-03-18ath11k: Add basic WoW functionalitiesCarl Huang10-19/+781
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
2022-03-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-32/+1
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16Revert "ath10k: drop beacon and probe response which leak from other channel"Kalle Valo1-32/+1
This reverts commit 3bf2537ec2e33310b431b53fd84be8833736c256. I was reported privately that this commit breaks AP and mesh mode on QCA9984 (firmware 10.4-3.9.0.2-00156). So revert the commit to fix the regression. There was a conflict due to cfg80211 API changes but that was easy to fix. Fixes: 3bf2537ec2e3 ("ath10k: drop beacon and probe response which leak from other channel") Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220315155455.20446-1-kvalo@kernel.org
2022-03-12Merge tag 'wireless-next-2022-03-11' of ↵Jakub Kicinski43-290/+2045
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== brcmfmac * add BCM43454/6 support rtw89 * add support for 160 MHz channels and 6 GHz band * hardware scan support iwlwifi * support UHB TAS enablement via BIOS * remove a bunch of W=1 warnings * add support for channel switch offload * support 32 Rx AMPDU sessions in newer devices * add support for a couple of new devices * add support for band disablement via BIOS mt76 * mt7915 thermal management improvements * SAR support for more mt76 drivers * mt7986 wmac support on mt7915 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 ath6kl * add device ID for WLU5150-D81 cfg80211/mac80211 * initial EHT (from 802.11be) support (EHT rates, 320 MHz, larger block-ack) * support disconnect on HW restart * tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (247 commits) mac80211: Add support to trigger sta disconnect on hardware restart mac80211: fix potential double free on mesh join mac80211: correct legacy rates check in ieee80211_calc_rx_airtime nl80211: fix typo of NL80211_IF_TYPE_OCB in documentation mac80211: Use GFP_KERNEL instead of GFP_ATOMIC when possible mac80211: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE rtw89: 8852c: process logic efuse map rtw89: 8852c: process efuse of phycap rtw89: support DAV efuse reading operation rtw89: 8852c: add chip::dle_mem rtw89: add page_regs to handle v1 chips rtw89: add chip_info::{h2c,c2h}_reg to support more chips rtw89: add hci_func_en_addr to support variant generation rtw89: add power_{on/off}_func rtw89: read chip version depends on chip ID rtw89: pci: use a struct to describe all registers address related to DMA channel rtw89: pci: add V1 of PCI channel address rtw89: pci: add struct rtw89_pci_info rtw89: 8852c: add 8852c empty files MAINTAINERS: add devicetree bindings entry for mt76 ... ==================== Link: https://lore.kernel.org/r/20220311124029.213470-1-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-10carl9170: devres ar->survey_infoChristian Lamparter1-4/+2
driver keeps the same survey_info struct for its lifetime around. This is used because while firmware does help by providing accounting information of the current channel, it doesn't keep track on the remaining channels. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/9b9a059b384f49587f4384ba47f01d3fb2115b22.1646250537.git.chunkeey@gmail.com
2022-03-10carl9170: replace bitmap_zalloc with devm_bitmap_zallocChristian Lamparter1-8/+1
the mem_bitmap is kept around for the lifetime of the driver device. This is a perfect candidate for devm. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/0a79221aa5477501c3def032e95ef8018973a514.1646250537.git.chunkeey@gmail.com
2022-03-10carl9170: devres-ing input_allocate_deviceChristian Lamparter1-11/+2
devres will take care of freeing the input_device once it is no longer needed. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/f81a6ff3b02116c6a448c42eecb546ea5d46c108.1646250537.git.chunkeey@gmail.com
2022-03-10carl9170: devres-ing hwrng_register usageChristian Lamparter2-27/+3
devres will take care of freeing the hwrng once it is no longer needed. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/d1c16490462a9371ab3cc16a018ef5e08382a35e.1646250537.git.chunkeey@gmail.com
2022-03-10carl9170: replace GFP_ATOMIC in ampdu_action, it can sleepChristian Lamparter1-1/+1
Since ~2010, the driver is allowed to sleep in the ampdu_action callback thanks to: commit 85ad181ea788 ("mac80211: allow drivers to sleep in ampdu_action") Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/0036538d0933626a1a5eb2c2c3935cf173028926.1646250537.git.chunkeey@gmail.com
2022-03-10ath10k: Fix error handling in ath10k_setup_msa_resourcesMiaoqian Lin1-1/+1
The device_node pointer is returned by of_parse_phandle() with refcount incremented. We should use of_node_put() on it when done. This function only calls of_node_put() in the regular path. And it will cause refcount leak in error path. Fixes: 727fec790ead ("ath10k: Setup the msa resources before qmi init") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220308070238.19295-1-linmq006@gmail.com
2022-03-10ath11k: remove unneeded flush_workqueueLv Ruyi (CGEL ZTE)1-1/+0
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
2022-03-10ath6kl: add device ID for WLU5150-D81André Apitzsch1-0/+1
This device with a male Mini-B USB connector is part of Panasonic TVs. Signed-off-by: André Apitzsch <git@apitzsch.eu> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220302211436.8746-1-git@apitzsch.eu
2022-03-09ath9k: make array voice_priority static constColin Ian King1-1/+1
Don't populate the read-only array voice_priority on the stack but instead make it static const. Also makes the object code a little smaller. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220222121749.87513-1-colin.i.king@gmail.com
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva2-5/+2
wmi_aplist_event Replace one-element array with flexible-array member in struct wmi_aplist_event. Also, make use of the struct_size() helper and remove unneeded variable ap_info_entry_size. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1b7889828f23763c034c1558cbab9c8e2066053e.1645736204.git.gustavoars@kernel.org
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva1-1/+1
wmi_disconnect_event Replace one-element array with flexible-array member in struct wmi_disconnect_event. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/e9957dc53ae48c2f39ae57b0157a67d844b5bc20.1645736204.git.gustavoars@kernel.org
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva1-1/+1
wmi_connect_event Replace one-element array with flexible-array member in struct wmi_connect_event. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/290a0cb7bddd813a6a96a59853880e66917aa03d.1645736204.git.gustavoars@kernel.org
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva1-1/+1
wmi_channel_list_reply Replace one-element array with flexible-array member in struct wmi_channel_list_reply. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/f3f9728a1dfc3767340f25a963be374e2ef5d8ad.1645736204.git.gustavoars@kernel.org
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva2-8/+2
wmi_start_scan_cmd Replace one-element array with flexible-array member in struct wmi_start_scan_cmd. Also, make use of the struct_size() helper. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/8b33c6d86a6bd40b5688cf118b4b35850db8d8c7.1645736204.git.gustavoars@kernel.org
2022-03-09ath6kl: wmi: Replace one-element array with flexible-array member in struct ↵Gustavo A. R. Silva2-8/+3
wmi_begin_scan_cmd Replace one-element array with flexible-array member in struct wmi_begin_scan_cmd. Also, make use of the struct_size() helper. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1ef801ea24475501fa0f296cb5435a440135206e.1645736204.git.gustavoars@kernel.org
2022-03-07Revert "ath: add support for special 0x0 regulatory domain"Brian Norris1-5/+5
This reverts commit 2dc016599cfa9672a147528ca26d70c3654a5423. Users are reporting regressions in regulatory domain detection and channel availability. The problem this was trying to resolve was fixed in firmware anyway: QCA6174 hw3.0: sdio-4.4.1: add firmware.bin_WLAN.RMH.4.4.1-00042 https://github.com/kvalo/ath10k-firmware/commit/4d382787f0efa77dba40394e0bc604f8eff82552 Link: https://bbs.archlinux.org/viewtopic.php?id=254535 Link: http://lists.infradead.org/pipermail/ath10k/2020-April/014871.html Link: http://lists.infradead.org/pipermail/ath10k/2020-May/015152.html Link: https://lore.kernel.org/all/1c160dfb-6ccc-b4d6-76f6-4364e0adb6dd@reox.at/ Fixes: 2dc016599cfa ("ath: add support for special 0x0 regulatory domain") Cc: <stable@vger.kernel.org> Cc: Wen Gong <wgong@codeaurora.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20200527165718.129307-1-briannorris@chromium.org
2022-03-06wireless: Atheros: Use netif_rx().Sebastian Andrzej Siewior3-3/+3
Since commit baebdf48c3600 ("net: dev: Makes sure netif_rx() can be invoked in any context.") the function netif_rx() can be used in preemptible/thread context as well as in interrupt context. Use netif_rx(). Cc: Kalle Valo <kvalo@kernel.org> Cc: Maya Erez <merez@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: wil6210@qti.qualcomm.com Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-25Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.gitKalle Valo37-206/+2017
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
2022-02-24ath10k: fix pointer arithmetic error in trace callFrancesco Magliocca1-1/+1
Reading through the commit history, it looks like there is no special need why we must skip the first 4 bytes in this trace call: trace_ath10k_htt_rx_desc(ar, (void*)rx_desc + sizeof(u32), hw->rx_desc_ops->rx_desc_size - sizeof(u32)); found in the function ath10k_htt_rx_amsdu_pop in the file htt_rx.c i think the original author (who is also the one who added rx_desc tracing capabilities in a0883cf7e75a) just wanted to trace the rx_desc contents, ignoring the fw_rx_desc_base info field (which is the part being skipped over). But the trace_ath10k_htt_rx_desc later added don't care about skipping it, so it may be good to uniform this call to the others in the file. But this would change the output of the trace and thus it may be a problem for tools that rely on it. Therefore I propose until further discussion to just keep it as it is and just fix the pointer arithmetic bug. Add missing void* cast to rx descriptor pointer in order to properly skip the initial 4 bytes of the rx descriptor when passing it to trace_ath10k_htt_rx_desc trace function. This fixes the pointer arithmetic error detected by Dan Carpenter's static analysis tool. Fixes: 6bae9de622d3 ("ath10k: abstract htt_rx_desc structure") Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00157-QCARMSWPZ-1 Signed-off-by: Francesco Magliocca <franciman12@gmail.com> Link: https://lore.kernel.org/ath10k/20220201130900.GD22458@kili/ Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220221122638.7971-1-franciman12@gmail.com
2022-02-24carl9170: Replace zero-length arrays with flexible-array membersGustavo A. R. Silva2-2/+2
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> Acked-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220216194955.GA904126@embeddedor
2022-02-24ath11k: add dbring debug supportVenkateswara Naralasetty6-6/+283
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
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