kernel/linux.git/drivers/net/wireless/ath/ath12k/debugfs.c, branch linux-7.0.y

Merge branch 'ath12k-ng' into ath-next

2025-12-15T16:55:21+00:00

As originally proposed in [1], the ath12k driver was re-architected in the ath12k-ng branch to separate the logic specific to 802.11be (Wi-Fi 7) from the core logic. This separation will allow ath12k to also support 802.11bn (Wi-Fi 8) in the future. Now merge this into ath-next. Many thanks to everyone who worked on this re-architecture. Special thanks to Vasanthakumar Thiagarajan and Baochen Qiang who reviewed every patch, and to Ripan Deuri for the ath12k-ng => ath-next merge conflict resolution. Link: https://lore.kernel.org/all/4a17d730-ede8-463e-98d8-9b0291d0ca45@oss.qualcomm.com/ # [1] Signed-off-by: Jeff Johnson

wifi: ath12k: Make firmware stats reset caller-driven

2025-11-06T15:33:31+00:00

Currently, ath12k_fw_stats_reset() is called in ath12k_mac_get_fw_stats() before fetching the required stats from the firmware. However, ath12k_open_bcn_stats() requests firmware stats for each enabled BSS individually. Since the firmware stats are reset before fetching, only the last BSS's data is displayed. Also, in ath12k_mac_op_get_txpower(), ath12k_mac_op_sta_statistics(), and ath12k_mac_op_link_sta_statistics(), after getting the stats from the firmware, the reset function is not called until the next firmware stats are requested or while unloading the module. Hence, the stats buffer will not be freed until one of the above sequences is executed. However, in ath12k_open_vdev_stats(), ath12k_open_bcn_stats() and ath12k_open_pdev_stats(), firmware stats are reset after copying the necessary data in ath12k_wmi_fw_stats_dump(). This leads to inconsistent usage of ath12k_fw_stats_reset() for freeing the firmware stats. Avoid these discrepancies by making it the caller's responsibility to free the stats buffer, thereby removing the need to free the stats buffer in ath12k_mac_get_fw_stats() and ath12k_wmi_fw_stats_dump(). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Signed-off-by: Manish Dharanenthiran Reviewed-by: Vasanthakumar Thiagarajan Reviewed-by: Baochen Qiang Link: https://patch.msgid.link/20251031-beacon_stats-v1-1-f52fce7b03ac@qti.qualcomm.com Signed-off-by: Jeff Johnson

wifi: ath12k: Move DP device stats to ath12k_dp

2025-11-05T15:16:54+00:00

As part of data path modularization of device object framework, the per packet tx/rx operations now use ath12k_dp. Move all the device stats 'device_stats' from ath12k_base to ath12k_dp, consolidating all device stats within ath12k_dp. This would improve the performance by allowing the datapath to reach to the stats counters without to having to reach out to ath12k_base object. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Pavankumar Nandeshwar Signed-off-by: Ripan Deuri Reviewed-by: Karthikeyan Periyasamy Reviewed-by: Baochen Qiang Link: https://patch.msgid.link/20251103112111.2260639-3-quic_rdeuri@quicinc.com Signed-off-by: Jeff Johnson

wifi: ath12k: track dropped MSDU buffer type packets in REO exception ring

2025-10-15T23:37:53+00:00

Add a counter "reo_excep_msdu_buf_type" in ath12k_debugfs_dump_device_dp_stats() to account for packets dropped due to unexpected MSDU buffer types in the RX error path. These packets are discarded to prevent incorrect parsing and potential kernel crashes. This helps in debugging and monitoring RX error handling behavior. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Signed-off-by: Sarika Sharma Reviewed-by: Baochen Qiang Reviewed-by: Vasanthakumar Thiagarajan Link: https://patch.msgid.link/20250930091551.3305312-3-sarika.sharma@oss.qualcomm.com Signed-off-by: Jeff Johnson

wifi: ath12k: Segregate the common and wifi7 specific structures

2025-10-10T14:06:19+00:00

Segregate the common and wifi7 specific structures in hal, and move them to corresponding header files. hal.h file in common directory is used by both common and wifi7 directory files, while hal.h and other hal headers are used only by files within the wifi7 directory since these headers contain hw specific hal data. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Pavankumar Nandeshwar Signed-off-by: Ripan Deuri Reviewed-by: Baochen Qiang Reviewed-by: Vasanthakumar Thiagarajan Link: https://patch.msgid.link/20251009111045.1763001-16-quic_rdeuri@quicinc.com Signed-off-by: Jeff Johnson

wifi: ath12k: Add framework for hardware specific ieee80211_ops registration

2025-09-30T16:12:58+00:00

Introduce a framework to register the ieee80211_ops table based on the underlying hardware architecture. This is necessary to support architecture-specific implementations of ieee80211_ops such as .tx, which will be introduced in upcoming patches. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Ripan Deuri Reviewed-by: Vasanthakumar Thiagarajan Reviewed-by: Baochen Qiang Link: https://patch.msgid.link/20250930131005.2884253-5-quic_rdeuri@quicinc.com Signed-off-by: Jeff Johnson

wifi: ath12k: Prefer {} to {0} in initializers

2025-07-21T21:34:01+00:00

Prefer {} to {0} in initializers since {} works even when the first member is not a scalar. Generated using: sed -i 's/{[[:space:]]*0[[:space:]]*}/{}/g' drivers/net/wireless/ath/ath12k/* Compile tested only. Link: https://patch.msgid.link/20250720-ath12k-zero-brace-v1-1-d8c8ca9d40a8@oss.qualcomm.com Signed-off-by: Jeff Johnson

wifi: ath12k: Avoid CPU busy-wait by handling VDEV_STAT and BCN_STAT

2025-06-17T23:28:34+00:00

When the ath12k driver is built without CONFIG_ATH12K_DEBUG, the recently refactored stats code can cause any user space application (such at NetworkManager) to consume 100% CPU for 3 seconds, every time stats are read. Commit 'b8a0d83fe4c7 ("wifi: ath12k: move firmware stats out of debugfs")' moved ath12k_debugfs_fw_stats_request() out of debugfs, by merging the additional logic into ath12k_mac_get_fw_stats(). Among the added responsibility of ath12k_mac_get_fw_stats() was the busy-wait for `fw_stats_done`. Signalling of `fw_stats_done` happens when one of the WMI_REQUEST_PDEV_STAT, WMI_REQUEST_VDEV_STAT, and WMI_REQUEST_BCN_STAT messages are received, but the handling of the latter two commands remained in the debugfs code. As `fw_stats_done` isn't signalled, the calling processes will spin until the timeout (3 seconds) is reached. Moving the handling of these two additional responses out of debugfs resolves the issue. Fixes: b8a0d83fe4c7 ("wifi: ath12k: move firmware stats out of debugfs") Signed-off-by: Bjorn Andersson Tested-by: Abel Vesa Link: https://patch.msgid.link/20250609-ath12k-fw-stats-done-v1-1-2b3624656697@oss.qualcomm.com Signed-off-by: Jeff Johnson

wifi: ath12k: print device dp stats in debugfs

2025-05-19T17:45:38+00:00

Print the data path related device specific stats in debugfs. These device_dp_stats are exposed in the ath12k debugfs directory. Output of device_dp_stats: root@CDCWLEX0799743-LIN:/home/qctest# cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/device_dp_stats DEVICE RX STATS: err ring pkts: 0 Invalid RBM: 0 RXDMA errors: Overflow: 0 MPDU len: 0 FCS: 0 Decrypt: 0 TKIP MIC: 0 Unencrypt: 0 MSDU len: 0 MSDU limit: 0 WiFi parse: 0 AMSDU parse: 0 SA timeout: 0 DA timeout: 0 Flow timeout: 0 Flush req: 0 AMSDU frag: 0 Multicast echo: 0 AMSDU mismatch: 0 Unauth WDS: 0 AMSDU or WDS: 0 REO errors: Desc addr zero: 0 Desc inval: 0 AMPDU in non BA: 0 Non BA dup: 0 BA dup: 0 Frame 2k jump: 0 BAR 2k jump: 0 Frame OOR: 155 BAR OOR: 0 No BA session: 0 Frame SN equal SSN: 0 PN check fail: 0 2k err: 0 PN err: 0 Desc blocked: 0 HAL REO errors: ring0: 0 ring1: 0 ring2: 0 ring3: 0 ring4: 0 ring5: 0 ring6: 0 ring7: 0 DEVICE TX STATS: TCL Ring Full Failures: ring0: 0 ring1: 0 ring2: 0 ring3: 0 Misc Transmit Failures: 0 tx_wbm_rel_source: 0:986 1:0 2:0 3:57 4:0 tqm_rel_reason: 0:1043 1:0 2:0 3:0 4:0 5:0 6:0 7:0 8:0 9:0 10:0 11:0 12:0 13:0 14:0 fw_tx_status: 0:57 1:0 2:0 3:0 4:0 5:0 6:0 tx_enqueued: 0:329 1:145 2:464 3:105 tx_completed: 0:329 1:145 2:464 3:105 radio0 tx_pending: 0 REO Rx Received: Ring1: 0:201 1:0 2:0 Ring2: 0:0 1:0 2:0 Ring3: 0:6152 1:0 2:0 Ring4: 0:9 1:0 2:0 Ring5: 0:0 1:0 2:0 Ring6: 0:0 1:0 2:0 Ring7: 0:0 1:0 2:0 Ring8: 0:0 1:0 2:0 Rx WBM REL SRC Errors: TQM: 0:0 1:0 2:0 Rxdma: 0:0 1:0 2:0 Reo: 0:155 1:0 2:0 FW: 0:0 1:0 2:0 SW: 0:0 1:0 2:0 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Vinith Kumar R Signed-off-by: Nithyanantham Paramasivam Reviewed-by: Mahendran P Link: https://patch.msgid.link/20250425012802.698914-4-nithyanantham.paramasivam@oss.qualcomm.com Signed-off-by: Jeff Johnson

wifi: ath12k: Add support to simulate firmware crash

2025-05-16T19:38:52+00:00

Add debugfs support to simulate firmware crash to test firmware restart. Usage: ----- echo assert > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/simulate_fw_crash Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Signed-off-by: Dinesh Karthikeyan Signed-off-by: Ramya Gnanasekar Signed-off-by: Maharaja Kennadyrajan Reviewed-by: Vasanthakumar Thiagarajan Link: https://patch.msgid.link/20250417065237.2507613-1-maharaja.kennadyrajan@oss.qualcomm.com Signed-off-by: Jeff Johnson