kernel/drivers/net/wireless/ath/ath11k/debugfs.c, branch linux-6.9.y

Merge tag 'wireless-2024-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

2024-01-23T16:38:13Z

Kalle Valo says: ==================== wireless fixes for v6.8-rc2 The most visible fix here is the ath11k crash fix which was introduced in v6.7. We also have a fix for iwlwifi memory corruption and few smaller fixes in the stack. * tag 'wireless-2024-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: mac80211: fix race condition on enabling fast-xmit wifi: iwlwifi: fix a memory corruption wifi: mac80211: fix potential sta-link leak wifi: cfg80211/mac80211: remove dependency on non-existing option wifi: cfg80211: fix missing interfaces when dumping wifi: ath11k: rely on mac80211 debugfs handling for vif wifi: p54: fix GCC format truncation warning with wiphy->fw_version ==================== Link: https://lore.kernel.org/r/20240122153434.E0254C433C7@smtp.kernel.org Signed-off-by: Jakub Kicinski

wifi: ath11k: rely on mac80211 debugfs handling for vif

2024-01-18T09:58:42Z

mac80211 started to delete debugfs entries in certain cases, causing a ath11k to crash when it tried to delete the entries later. Fix this by relying on mac80211 to delete the entries when appropriate and adding them from the vif_add_debugfs handler. Fixes: 0a3d898ee9a8 ("wifi: mac80211: add/remove driver debugfs entries as appropriate") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218364 Signed-off-by: Benjamin Berg Acked-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://msgid.link/20240115101805.1277949-1-benjamin@sipsolutions.net

wifi: ath11k: Update Qualcomm Innovation Center, Inc. copyrights

2023-11-30T16:59:24Z

Update the copyright for all ath11k files modified on behalf of Qualcomm Innovation Center, Inc. in 2021 through 2023. Signed-off-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231128-ath12kcopyrights-v1-2-be0b7408cbac@quicinc.com

wifi: ath11k: Introduce and use ath11k_sta_to_arsta()

2023-10-12T16:08:22Z

Currently, the logic to return an ath11k_sta pointer, given a ieee80211_sta pointer, uses typecasting throughout the driver. In general, conversion functions are preferable to typecasting since using a conversion function allows the compiler to validate the types of both the input and output parameters. ath11k already defines a conversion function ath11k_vif_to_arvif() for a similar conversion. So introduce ath11k_sta_to_arsta() for this use case, and convert all of the existing typecasting to use this function. No functional changes, compile tested only. Signed-off-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231009-ath11k_sta_to_arsta-v1-1-1563e3a307e8@quicinc.com

wifi: ath11k: ath11k_debugfs_register(): fix format-truncation warning

2023-10-12T16:04:24Z

In v6.6-rc4 with GCC 13.2 I see a new warning: drivers/net/wireless/ath/ath11k/debugfs.c: In function 'ath11k_debugfs_register': drivers/net/wireless/ath/ath11k/debugfs.c:1597:51: error: '%d' directive output may be truncated writing between 1 and 3 bytes into a region of size 2 [-Werror=format-truncation=] drivers/net/wireless/ath/ath11k/debugfs.c:1597:48: note: directive argument in the range [0, 255] drivers/net/wireless/ath/ath11k/debugfs.c:1597:9: note: 'snprintf' output between 5 and 7 bytes into a destination of size 5 Increase the size of pdev_name to 10 bytes to make sure there's enough room for the string. Also change the format to '%u' as ar->pdev_idx is u8. Compile tested only. Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231010062250.2580951-1-kvalo@kernel.org

wifi: ath11k: debugfs: fix to work with multiple PCI devices

2023-01-10T13:26:27Z

ath11k fails to load if there are multiple ath11k PCI devices with same name: ath11k_pci 0000:01:00.0: Hardware name qcn9074 hw1.0 debugfs: Directory 'ath11k' with parent '/' already present! ath11k_pci 0000:01:00.0: failed to create ath11k debugfs ath11k_pci 0000:01:00.0: failed to create soc core: -17 ath11k_pci 0000:01:00.0: failed to init core: -17 ath11k_pci: probe of 0000:01:00.0 failed with error -17 Fix this by creating a directory for each ath11k device using schema -, for example "pci-0000:06:00.0". This directory created under the top-level ath11k directory, for example /sys/kernel/debug/ath11k. The reference to the toplevel ath11k directory is not stored anymore within ath11k, instead it's retrieved using debugfs_lookup(). If the directory does not exist it will be created. After the last directory from the ath11k directory is removed, for example when doing rmmod ath11k, the empty ath11k directory is left in place, it's a minor cosmetic issue anyway. Here's an example hierarchy with one WCN6855: ath11k `-- pci-0000:06:00.0 |-- mac0 | |-- dfs_block_radar_events | |-- dfs_simulate_radar | |-- ext_rx_stats | |-- ext_tx_stats | |-- fw_dbglog_config | |-- fw_stats | | |-- beacon_stats | | |-- pdev_stats | | `-- vdev_stats | |-- htt_stats | |-- htt_stats_reset | |-- htt_stats_type | `-- pktlog_filter |-- simulate_fw_crash `-- soc_dp_stats I didn't have a test setup where I could connect multiple ath11k devices to the same the host, so I have only tested this with one device. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.9 Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1 Tested-by: Robert Marko Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20221220121231.20120-1-kvalo@kernel.org

wifi: ath11k: Add support to get power save duration for each client

2022-09-26T09:34:38Z

Add support to get the following power save information through debugfs interface, * Current ps state of the peer * Time duration since the peer is in power save * Total duration of the peer spent in power save Above information is helpful in debugging the issues with power save clients. This patch also add trace log support for PS timekeeper to track the PS state change of the peers alongs with the peer MAC address and timestamp. Use the below commands to get the above power save information, To know the time_since_station_in_power_save: cat /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/stations/ XX:XX:XX:XX:XX:XX/current_ps_duration To know power_save_duration: cat /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/stations/ XX:XX:XX:XX:XX:XX/total_ps_duration To reset the power_save_duration of all stations connected to AP: echo 1 > /sys/kernel/debug/ieee80211/phyX/ath11k/reset_ps_duration To enable/disable the ps_timekeeper: echo Y > /sys/kernel/debug/ieee80211/phyX/ath11k/ps_timekeeper_enable Y = 1 to enable and Y = 0 to disable. To record PS timekeeer logs after enabling ps_timekeeper: trace-cmd record -e ath11k_ps_timekeeper Tested-on: Tested-on: IPQ8074 WLAN.HK.2.5.0.1-00991-QCAHKSWPL_SILICONZ-1 Signed-off-by: Venkateswara Naralasetty Signed-off-by: Tamizh Chelvam Raja Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220725054601.14719-1-quic_tamizhr@quicinc.com

wifi: ath11k: move firmware stats out of debugfs

2022-09-22T07:28:20Z

Currently, firmware stats, comprising pdev, vdev and beacon stats are part of debugfs. In firmware pdev stats, firmware reports the final Tx power used to transmit each packet. If driver wants to know the final Tx power being used at firmware level, it can leverage from firmware pdev stats. Move firmware stats out of debugfs context in order to leverage the final Tx power reported in it even when debugfs is disabled. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3 Signed-off-by: Aditya Kumar Singh Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220603082814.31466-2-quic_adisi@quicinc.com

wifi: ath11k: implement SRAM dump debugfs interface

2022-09-10T06:26:18Z

On-board SRAM contains valuable information for firmware debugging so add a new file named "sram" to debugfs with which we can dump SRAM content using following the following: cp /sys/kernel/debug/ath11k/wcn6855\ hw2.0/sram /tmp/sram Currently this feature is enabled for QCA6390 and WCN6855. 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.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Baochen Qiang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220802075533.1744-3-quic_bqiang@quicinc.com

wifi: ath11k: Fix hardware restart failure due to twt debugfs failure

2022-09-02T12:27:11Z

Currently, creation of debugfs entries for TWT is failing during hardware restart because of the residual TWT files which were created during add_interface(). Since, struct arvif{} is memset to zero upon add_interface() invocation, when the hardware restart is triggered, arvif is memset to 0 and TWT files are attempted to create again which will fail because of the residual TWT files already in place, this leads to hardware restart failure. Also, it is not a good idea to return error from add_interface() because of debugfs file creation failures. Moreover, debugfs framework can very well handle the errors in it's create file & remove file APIs and the errors returned by these APIs are not checked in most usecases. Fix the HW restart failure by ignoring the errors returned from the debugfs APIs. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 Fixes: fe98a6137d03 ("ath11k: add debugfs for TWT debug calls") Signed-off-by: Manikanta Pubbisetty Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220720135150.22193-3-quic_mpubbise@quicinc.com