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2025-04-15wifi: ath12k: support 2 channels for single pdev deviceBaochen Qiang
For single pdev device, radio number of a device is forced as 1 in ath12k_wmi_ext_soc_hal_reg_caps_parse(). This leads to ah->num_radio == 1 and then in ath12k_mac_setup_iface_combinations() we report to mac/cfg80211 that only 1 channel is supported. In MLO case, it finally results in failing to bring up the second link as it is in another channel. Change num_different_channels to 2 to allow a second link. Since DFS on multiple channels are not supported yet, remove radar_detect_widths. For now WCN7850 is the only single pdev device, so others should not be affected. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-9-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: don't skip non-primary links for WCN7850Baochen Qiang
The primary link check bypasses REO queue setup for non-primary links in ath12k_dp_rx_peer_tid_setup(), this works for QCN9274 but breaks WCN7850 as WCN7850 needs it to be done for each link peer. Add a new hardware parameter to differentiate them. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-8-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: alloc REO queue per stationBaochen Qiang
In MLO case, all link peers share the same REO queue, so the queue should be allocated only once, currently this is done by checking primary_link flag in ath12k_dp_rx_peer_tid_setup(). However, the check not only avoids duplicate allocation, but also bypasses sending queue configuration to firmware for non-primary links. In an upcoming patch, changes will be added to make this check no-ops for WCN7850, as WCN7850 firmware needs to be explicitly notified each link peer's queue configuration. That said, the duplicate allocation would arise again after that change, hence it needs to be resolved before hand. Since all link peers share the same queue, it should be allocated per MLD peer, not per link peer. So change to do allocation once and save it in MLD peer, link peers can simply get queue configuration from there. Also relocate ath12k_reoq_buf structure to core.h to avoid circular dependency. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-7-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: group REO queue buffer parameters togetherBaochen Qiang
Currently vaddr, paddr and size fields are located together with other fields in ath12k_dp_rx_tid structure. Logically they represents the REO queue buffer so better to group them in an individual structure. Introduce a new structure ath12k_reoq_buf to group them. This improves code readability, and benefits the upcoming patch where this structure is heavily accessed. While at it, change vaddr type to 'void *' since it is actually not pointing to any u32 buffer. Also rename paddr as paddr_aligned to better reflect its actual meaning. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-6-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: make assoc link associate firstBaochen Qiang
In MLO scenario WCN7850 firmware requests the assoc link to associate before any other links. However currently in ath12k_mac_op_vif_cfg_changed() we are doing association in an ascending order of link id. If the assoc link does not get assigned the smallest id, a non-assoc link gets associated first and firmware crashes. Change to do association for the assoc link first. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-5-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: identify assoc link vif in station modeBaochen Qiang
In MLO scenario, for station mode interface, WCN7850 firmware requests the assoc link vdev to get started before any other link vdevs starts. Firmware internally checks assoc_link field of wmi_vdev_start_mlo_params.flags when the first vdev starts. And if the check fails firmware crashes. Current connection flow guarantees the assoc link vdev gets started first (at assoc stage only one link vdev is created/started, i.e. the assoc link vdev), however the assoc_link flag is never set, resulting in WCN7850 firmware crash. Note ath12k_link_sta structure already has is_assoc_link flag, and it is properly set for assoc link. However we can not use it because it won't be available before peer gets created, which is too late for vdev starts. So add a new flag 'is_sta_assoc_link' in ath12k_link_vif structure and set it when deflink vdev is created. This is valid because we always use deflink as the assoc link. This flag is passed to firmware vdev starts to avoid firmware crash. Also verify the link vif/sta pair has the same settings when creating link sta. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-4-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: support MLO as well if single_chip_mlo_support flag is setBaochen Qiang
Currently firmware MLO capability is validated via firmware IE, however WCN7850 firmware does not support this method but instead advertises MLO by single_chip_mlo_support bit in QMI phy capability message. Change to consider single_chip_mlo_support bit as well for MLO capability validation. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-3-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: use fw_features only when it is validBaochen Qiang
Currently fw_features is used to check if a specific feature is supported or not: if the feature bit is set the feature is believed to be supported, otherwise not supported. Since fw_features is populated only when using firmware API-2, and by default it is zero, in case of API-1 such as WCN7850 firmware it is possible that a feature is not enabled by host while actually firmware supports it. To avoid this, add a new flag indicating whether fw_features has been ever populated or not, and only when that flag is true we choose to believe fw_features. This benefits firmware MLO capability validation in an upcoming patch. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-2-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-15wifi: ath12k: introduce ath12k_fw_feature_supported()Baochen Qiang
There are several places checking if a specific bit set in ab->fw.fw_features, and in an upcoming patch additional check needs to be added at all places. Introduce a new helper ath12k_fw_feature_supported() to avoid code duplication. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250409-ath12k-wcn7850-mlo-support-v2-1-3801132ca2c3@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: reset MLO global memory during recoveryAditya Kumar Singh
When operating with multiple devices grouped together, the firmware stores data related to the state machine of each partner device in the MLO global memory region. If the firmware crashes, it updates the state to 'crashed'. During recovery, this memory is shared with the firmware again, and upon detecting the 'crashed' state, it reasserts. This leads to a loop of firmware asserts and it never recovers. Hence to fix this issue, once all devices in the group have been asserted and powered down, reset the MLO global memory region. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-9-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: handle ath12k_core_reset() with hardware groupingAditya Kumar Singh
Currently, in ath12k_core_reset(), the device is powered up immediately after a power down. However, with hardware grouping, when one device asserts, all partner devices also asserts. If there is a delay in processing these asserts, by the time this device powers up, other devices might still be asserting, leading to an overall recovery failure. To prevent this issue, ensure all asserts for a group are processed before initiating the power-up sequence. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-8-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: handle ath12k_core_restart() with hardware groupingAditya Kumar Singh
Currently, when ath12k_core_restart() is called and the ab->is_reset flag is set, it invokes ieee80211_restart_hw() for all hardware in the same group. However, other hardware might still be in the recovery process, making this call inappropriate with grouping into picture. To address this, add a condition to check if the group is ready. If the group is not ready, do not call ieee80211_restart_hw(). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-7-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix ath12k_core_pre_reconfigure_recovery() with groupingAditya Kumar Singh
Currently, ath12k_core_pre_reconfigure_recovery() reconfigures all radios within the same group. During grouping and driver going for a recovery, this function is called as many times as there are devices in the group. Consequently, it performs the same reconfiguration multiple times, which is unnecessary. To prevent this, add a check to continue if the action has already been taken. To simplify the management of various flags, the reason for hardware queues being stopped is used as a check instead of introducing a new flag. While at it, also add missing wiphy locks. Wiphy lock is required since ath12k_mac_drain_tx() which is called by ath12k_core_pre_reconfigure_recovery() needs this lock to be held by the caller. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-6-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix firmware assert during reboot with hardware groupingAditya Kumar Singh
At present, during PCI shutdown, the power down is only executed for a single device. However, when operating in a group, all devices need to be powered down simultaneously. Failure to do so will result in a firmware assertion. Hence, introduce a new ath12k_pci_hw_group_power_down() and call it during power down. This will ensure that all partner devices are properly powered down. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-5-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix ATH12K_FLAG_REGISTERED flag handlingAditya Kumar Singh
Commit a5686ae820fa ("wifi: ath12k: move ATH12K_FLAG_REGISTERED handling to ath12k_mac_register()") relocated the setting of the ATH12K_FLAG_REGISTERED flag to the ath12k_mac_register() function. However, this function only accesses the first device (ab) via ag->ab[0], resulting in the flag being set only for the first device in the group. Similarly, ath12k_mac_unregister() only unsets the flag for the first device. The flag should actually be set for all devices in the group to avoid issues during recovery. Hence, move setting and clearing of this flag in the function ath12k_core_hw_group_start() and ath12k_core_hw_group_stop() respectively. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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 Fixes: a5686ae820fa ("wifi: ath12k: move ATH12K_FLAG_REGISTERED handling to ath12k_mac_register()") Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-4-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix failed to set mhi state error during reboot with hardware ↵Aditya Kumar Singh
grouping With hardware grouping, during reboot, whenever a device is removed, it powers down itself and all its partner devices in the same group. Now this is done by all devices and hence there is multiple power down for devices and hence the following error messages can be seen: ath12k_pci 0002:01:00.0: failed to set mhi state POWER_OFF(3) in current mhi state (0x0) ath12k_pci 0002:01:00.0: failed to set mhi state: POWER_OFF(3) ath12k_pci 0002:01:00.0: failed to set mhi state DEINIT(1) in current mhi state (0x0) ath12k_pci 0002:01:00.0: failed to set mhi state: DEINIT(1) ath12k_pci 0003:01:00.0: failed to set mhi state POWER_OFF(3) in current mhi state (0x0) ath12k_pci 0003:01:00.0: failed to set mhi state: POWER_OFF(3) ath12k_pci 0003:01:00.0: failed to set mhi state DEINIT(1) in current mhi state (0x0) ath12k_pci 0003:01:00.0: failed to set mhi state: DEINIT(1) ath12k_pci 0004:01:00.0: failed to set mhi state POWER_OFF(3) in current mhi state (0x0) ath12k_pci 0004:01:00.0: failed to set mhi state: POWER_OFF(3) To prevent this, check if the ATH12K_PCI_FLAG_INIT_DONE flag is already set before powering down. If it is set, it indicates that another partner device has already performed the power down, and this device can skip this step. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-3-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: add reference counting for core attachment to hardware groupAditya Kumar Singh
Currently, driver does not manage reference counting for attaching and detaching cores to/from hardware groups. This can lead to issues when multiple cores are involved. Or with same core, attach/detach is called multiple times back to back. Fix this issue by using reference counting. With that, it is now ensured that the core is properly attached or detached from the hardware group and even back to back calls will not alter the count. Additionally, add some debug logs during the attachment and detachment events for better debugging and tracking. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-2-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix SLUB BUG - Object already free in ath12k_reg_free()Aditya Kumar Singh
During rmmod of ath12k module with SLUB debug enabled, following print is seen - ============================================================================= BUG kmalloc-1k (Not tainted): Object already free ----------------------------------------------------------------------------- Allocated in ath12k_reg_build_regd+0x94/0xa20 [ath12k] age=10470 cpu=0 pid=0 __kmalloc_noprof+0xf4/0x368 ath12k_reg_build_regd+0x94/0xa20 [ath12k] ath12k_wmi_op_rx+0x199c/0x2c14 [ath12k] ath12k_htc_rx_completion_handler+0x398/0x554 [ath12k] ath12k_ce_per_engine_service+0x248/0x368 [ath12k] ath12k_pci_ce_workqueue+0x28/0x50 [ath12k] process_one_work+0x14c/0x28c bh_worker+0x22c/0x27c workqueue_softirq_action+0x80/0x90 tasklet_action+0x14/0x3c handle_softirqs+0x108/0x240 __do_softirq+0x14/0x20 Freed in ath12k_reg_free+0x40/0x74 [ath12k] age=136 cpu=2 pid=166 kfree+0x148/0x248 ath12k_reg_free+0x40/0x74 [ath12k] ath12k_core_hw_group_destroy+0x68/0xac [ath12k] ath12k_core_deinit+0xd8/0x124 [ath12k] ath12k_pci_remove+0x6c/0x130 [ath12k] pci_device_remove+0x44/0xe8 device_remove+0x4c/0x80 device_release_driver_internal+0x1d0/0x22c driver_detach+0x50/0x98 bus_remove_driver+0x70/0xf4 driver_unregister+0x30/0x60 pci_unregister_driver+0x24/0x9c ath12k_pci_exit+0x18/0x24 [ath12k] __arm64_sys_delete_module+0x1a0/0x2a8 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 Slab 0xfffffdffc0033600 objects=10 used=6 fp=0xffff000000cdcc00 flags=0x3fffe0000000240(workingset|head|node=0|zone=0|lastcpupid=0x1ffff) Object 0xffff000000cdcc00 @offset=19456 fp=0xffff000000cde400 [...] This issue arises because in ath12k_core_hw_group_destroy(), each device calls ath12k_core_soc_destroy() for itself and all its partners within the same group. Since ath12k_core_hw_group_destroy() is invoked for each device, this results in a double free condition, eventually causing the SLUB bug. To resolve this, set the freed pointers to NULL. And since there could be a race condition to read these pointers, guard these with the available mutex lock. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 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 Fixes: 6f245ea0ec6c ("wifi: ath12k: introduce device group abstraction") Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250408-fix_reboot_issues_with_hw_grouping-v4-1-95e7bf048595@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Fix buffer overflow in debugfsDan Carpenter
If the user tries to write more than 32 bytes then it results in memory corruption. Fortunately, this is debugfs so it's limited to root users. Fixes: 3f73c24f28b3 ("wifi: ath12k: Add support to enable debugfs_htt_stats") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/35daefbd-d493-41d9-b192-96177d521b40@stanley.mountain Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Fix a couple NULL vs IS_ERR() bugsDan Carpenter
The devm_memremap() function returns error pointers on error and the ioremap() function returns NULL on error. The error checking here got those flipped around. Fixes: c01d5cc9b9fe ("wifi: ath12k: Power up userPD") Fixes: 6cee30f0da75 ("wifi: ath12k: add AHB driver support for IPQ5332") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/937abc74-9648-4c05-a2c3-8db408b3ed9e@stanley.mountain Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath11k: Use of_property_present() to test property presenceRob Herring (Arm)
The use of of_property_read_u32() isn't really correct as "memory-region" contains phandles (though those happen to be u32s. As it is just testing for property presence, use of_property_present() instead. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20250408190211.2505737-2-robh@kernel.org Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Fix WMI tag for EHT rate in peer assocRamya Gnanasekar
Incorrect WMI tag is used for EHT rate update from host to firmware while encoding peer assoc WMI. Correct the WMI tag used for EHT rate update from WMI_TAG_HE_RATE_SET to the proper tag. This ensures firmware does not mistakenly update HE rate during parsing. Found during code review. Compile tested only. Fixes: 5b70ec6036c1 ("wifi: ath12k: add WMI support for EHT peer") Signed-off-by: Ramya Gnanasekar <ramya.gnanasekar@oss.qualcomm.com> Link: https://patch.msgid.link/20250409152341.944628-1-ramya.gnanasekar@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Disable broadcast TWT feature in HE MAC capabilitiesThomas Wu
Currently, the AP does not support the broadcast target wake time (TWT) feature. Therefore, disable the broadcast TWT feature in the HE MAC capabilities element field. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Thomas Wu <quic_wthomas@quicinc.com> Signed-off-by: Aaradhana Sahu <aaradhana.sahu@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250409053830.4039467-1-aaradhana.sahu@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Introduce check against zero for ahvif->key_cipher in ↵Aaradhana Sahu
ath12k_mac_op_tx() Currently, ahvif->key_cipher is compared with the enum value (WMI_CIPHER_NONE) inside ath12k_mac_op_tx(). However, ahvif->key_cipher is set using the macro value WLAN_CIPHER_SUITE_XXXX which seems inconsistent. To improve code consistency and readability, introduce check against zero for ahvif->key_cipher instead of comparing it with the enum (WMI_CIPHER_NONE). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Aaradhana Sahu <aaradhana.sahu@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250403082207.3323938-3-aaradhana.sahu@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Resolve multicast packet drop by populating key_cipher in ↵Aaradhana Sahu
ath12k_install_key() Currently, the key_cipher in the ath12k_vif structure, which represents the group cipher of the MLD AP, is populated when the link address matches the ieee80211_vif address within ath12k_install_key(). However, in MLD AP, the link address and ieee80211_vif address can differ. Due to this key_cipher is not populated and multicast packets don't get the correct cipher information and resulting multicast packets drop. To fix this, compare the link address with the arvif->bssid instead of the ieee80211_vif address. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Fixes: 3dd2c68f206ef ("wifi: ath12k: prepare vif data structure for MLO handling") Signed-off-by: Aaradhana Sahu <aaradhana.sahu@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250403082207.3323938-2-aaradhana.sahu@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: fix cleanup path after mhi initRaj Kumar Bhagat
Currently, the 'err_pci_msi_free' label is misplaced, causing the cleanup sequence to be incorrect. Fix this by moving the 'err_pci_msi_free' label to the correct position after 'err_irq_affinity_cleanup'. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Fixes: a3012f206d07 ("wifi: ath12k: set IRQ affinity to CPU0 in case of one MSI vector") Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250403-ath12k-cleanup-v1-1-ad8f67b0e9cf@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: Add support for link specific datapath statsBalamurugan Mahalingam
Add support to record the number of frames enqueued, hardware descriptor type, encapsulation/encryption types used, frames dropped and completed. This is useful for understanding the datapath performance and tune the peak throughput. The link specific stats can be viewed through the below debugfs file cat /sys/kernel/debug/ieee80211/phy0/netdev:wlan1/link_stats link[0] Tx Unicast Frames Enqueued = 9 link[0] Tx Broadcast Frames Enqueued = 78689 link[0] Tx Frames Completed = 78698 link[0] Tx Frames Dropped = 0 link[0] Tx Frame descriptor Encap Type = raw:0 native wifi:78698 ethernet:0 link[0] Tx Frame descriptor Encrypt Type = 0:78698 1:0 2:0 3:0 4:0 5:0 6:0 7:0 8:0 9:0 10:0 11:0 link[0] Tx Frame descriptor Type = buffer:78698 extension:0 ------------------------------------------------------ link[1] Tx Unicast Frames Enqueued = 0 link[1] Tx Broadcast Frames Enqueued = 78689 link[1] Tx Frames Completed = 78689 link[1] Tx Frames Dropped = 0 link[1] Tx Frame descriptor Encap Type = raw:0 native wifi:78689 ethernet:0 link[1] Tx Frame descriptor Encrypt Type = 0:78689 1:0 2:0 3:0 4:0 5:0 6:0 7:0 8:0 9:0 10:0 11:0 link[1] Tx Frame descriptor Type = buffer:78689 extension:0 ------------------------------------------------------ Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-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: Balamurugan Mahalingam <quic_bmahalin@quicinc.com> Link: https://patch.msgid.link/20250409155125.299380-1-quic_bmahalin@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: replace the usage of rx desc with rx_infoP Praneesh
In ath12k_dp_rx_h_mpdu(), during the undecap to native wifi mode, the rx descriptor memory is overwritten. After this function call, any subsequent accesses to rx descriptor related memory yield invalid values. Fix this by replacing instances where rx_desc was used with the pre-cached information in rx_info. This ensures that the values populated from the rx descriptor are accurate and prevents invalid memory access. 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 Co-developed-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402182917.2715596-3-praneesh.p@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-11wifi: ath12k: add rx_info to capture required field from rx descriptorP Praneesh
In ath12k_dp_rx_h_mpdu(), as part of undecap to native wifi mode, the rx descriptor memory is getting overwritten. After this function call, all the rx descriptor related memory accesses give invalid values. To handle this scenario, introduce a new structure ath12k_dp_rx_info which pre-caches all the required fields from the rx descriptor before calling ath12k_dp_rx_h_ppdu(). This rx_info structure will be used in the next patch. 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 Co-developed-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402182917.2715596-2-praneesh.p@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-09wifi: ath12k: ahb: Replace del_timer_sync() with timer_delete_sync()Jeff Johnson
A linux-next build error was reported in [1]. This is the result of a treewide timer cleanup [2]. The ath12k AHB support has not yet landed in the tree where the cleanup occurred, and hence a new call to del_timer_sync() was not addressed by the treewide cleanup. So fix that one instance. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://msgid.link/20250408105146.459dfcf5@canb.auug.org.au # [1] Link: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=8fa7292fee5c5240402371ea89ab285ec856c916 # [2] Link: https://patch.msgid.link/20250408-timer_delete_sync-v1-1-4dcb22f71083@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-07wifi: ath12k: Fix misspelling "upto" in dp.cJeff Johnson
ath12k-check is flagging: drivers/net/wireless/ath/ath12k/dp.c:1656: 'upto' may be misspelled - perhaps 'up to'? Replace "upto" with "up to" and split the comment line so that it doesn't exceed 80 columns. Link: https://patch.msgid.link/20250407-upto-v1-1-23ca65f2ccdf@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-07wifi: ath12k: Fix invalid memory access while forming 802.11 headerP Praneesh
While forming the 802.11 header from the rx descriptor, skb_push() is performed for the 802.11 header length and then calls ath12k_dp_rx_desc_get_dot11_hdr(). Since skb_push() moves the skb->data pointer backwards by the 802.11 header length, the rx descriptor points to a different memory area than intended, causing invalid information to be fetched from the rx descriptor. Also, when IV and ICV are not stripped from the given MSDU, mac80211 performs PN validation for these MSDUs, which requires the crypto header. Before forming the crypto header from the given rx descriptor, skb_push() is performed for the crypto header length, which overwrites the memory pointed to by the rx descriptor, causing invalid information to form the 802.11 header. Fix these issues by moving all rx descriptor accesses before the skb_push() operation which ensures the proper 802.11 headers are generated from the given rx descriptor and removing ath12k_dp_rxdesc_get_mpdu_frame_ctrl() for filling frame control, as this information is already fetched by ath12k_dp_rx_desc_get_dot11_hdr(). 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 Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Co-developed-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: Karthikeyan Periyasamy <karthikeyan.periyasamy@oss.qualcomm.com> Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Link: https://patch.msgid.link/20250402180543.2670947-1-praneesh.p@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-07wifi: ath12k: Fix memory corruption during MLO multicast txP Praneesh
The struct sk_buff's control buffer is shared by mac80211's struct ieee80211_tx_info and ath12k's struct ath12k_skb_cb. When the driver wants to transmit an skb, it caches all the mac80211-specific information from struct ieee80211_tx_info, then performs a memset on the control buffer before writing the ath12k-specific information using struct ath12k_skb_cb. However, during multicast tx, the key is being filled into the driver data, which overwrites some crucial members like link_id and flags in struct ath12k_skb_cb. This causes invalid information retrieval when the driver accesses these fields during ath12k_dp_tx(). Fix this issue by removing the key filling logic during MLO multicast tx, as it is not used anywhere in the tx path. 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 Fixes: 2f50de725677 ("wifi: ath12k: Add support for MLO Multicast handling in driver") Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Link: https://patch.msgid.link/20250402175714.2667270-1-praneesh.p@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-07wifi: ath12k: Fix memory leak during vdev_id mismatchP Praneesh
Currently driver enables vdev_id check as part of the bank configuration in ath12k_dp_tx_get_vdev_bank_config(). This check ensures that the vdev_id configured in the bank register aligns with the vdev_id in the packet's address search table within the firmware. If there is a mismatch, the firmware forwards the packet with the HTT status HAL_WBM_REL_HTT_TX_COMP_STATUS_VDEVID_MISMATCH. Since driver does not handle this vdev_id mismatch HTT status, the corresponding buffers are not freed properly, causing a memory leak. Fix this issue by adding handling to free the buffers when a vdev_id mismatch HTT status is encountered. 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- Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Link: https://patch.msgid.link/20250402174032.2651221-1-praneesh.p@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-07wifi: ath12k: Fix incorrect rates sent to firmwarePradeep Kumar Chitrapu
Before firmware assert, if there is a station interface in the device which is not associated with an AP, the basic rates are set to zero. Following this, during firmware recovery, when basic rates are zero, ath12k driver is sending invalid rate codes, which are negative values, to firmware. This results in firmware assert. Fix this by checking if rate codes are valid, before sending them to the firmware. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com> Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Reviewed-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20250320112426.1956961-1-quic_rdevanat@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-03wifi: ath12k: Enable REO queue lookup table feature on QCN9274Nithyanantham Paramasivam
Enable the REO queue lookup table feature for QCN9274 by setting the reoq_lut_support flag. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Nithyanantham Paramasivam <quic_nithp@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402152529.1649402-4-quic_nithp@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-03wifi: ath12k: Add support to clear qdesc array in REO cacheBalamurugan S
Currently, the existing code lacks functionality to clear the qdesc array in the REO cache. As a result, any updates in the LUT are not reflected in the REO cache. To address this issue, add functionality to clear the qdesc array in the REO cache during a peer TID update. To do this, set the CLEAR_DESC_ARRAY field of WCSS_UMAC_REO_R0_QDESC_ADDR_READ and then reset it. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com> Signed-off-by: Nithyanantham Paramasivam <quic_nithp@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402152529.1649402-3-quic_nithp@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-03wifi: ath12k: Fix the enabling of REO queue lookup table featureSriram R
Instead of storing the REO queue address inside peer entries, REO hardware module prefers them to be stored in SRAM which could be directly accessed by REO using peer_ID/TID based lookup table mechanism. Fix the enabling of the REO queue lookup table(LUT) feature by configuring the LUT address information in the REO hardware register and setting the host service flags. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Sriram R <quic_srirrama@quicinc.com> Signed-off-by: Nithyanantham Paramasivam <quic_nithp@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402152529.1649402-2-quic_nithp@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath11k: fix node corruption in ar->arvifs listStone Zhang
In current WLAN recovery code flow, ath11k_core_halt() only reinitializes the "arvifs" list head. This will cause the list node immediately following the list head to become an invalid list node. Because the prev of that node still points to the list head "arvifs", but the next of the list head "arvifs" no longer points to that list node. When a WLAN recovery occurs during the execution of a vif removal, and it happens before the spin_lock_bh(&ar->data_lock) in ath11k_mac_op_remove_interface(), list_del() will detect the previously mentioned situation, thereby triggering a kernel panic. The fix is to remove and reinitialize all vif list nodes from the list head "arvifs" during WLAN halt. The reinitialization is to make the list nodes valid, ensuring that the list_del() in ath11k_mac_op_remove_interface() can execute normally. Call trace: __list_del_entry_valid_or_report+0xb8/0xd0 ath11k_mac_op_remove_interface+0xb0/0x27c [ath11k] drv_remove_interface+0x48/0x194 [mac80211] ieee80211_do_stop+0x6e0/0x844 [mac80211] ieee80211_stop+0x44/0x17c [mac80211] __dev_close_many+0xac/0x150 __dev_change_flags+0x194/0x234 dev_change_flags+0x24/0x6c devinet_ioctl+0x3a0/0x670 inet_ioctl+0x200/0x248 sock_do_ioctl+0x60/0x118 sock_ioctl+0x274/0x35c __arm64_sys_ioctl+0xac/0xf0 invoke_syscall+0x48/0x114 ... Tested-on: QCA6698AQ hw2.1 PCI WLAN.HSP.1.1-04591-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1 Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Stone Zhang <quic_stonez@quicinc.com> Link: https://patch.msgid.link/20250320053145.3445187-1-quic_stonez@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: Fix spelling errors in mac.c fileMaharaja Kennadyrajan
Fix spelling error correpsondig -> corresponding in the comments within the file mac.c Compile tested only. Signed-off-by: Maharaja Kennadyrajan <maharaja.kennadyrajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250401173755.1982382-1-maharaja.kennadyrajan@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: store and send country code to firmware after recoveryWen Gong
Currently ath12k does not send the country code to firmware after device recovery. As a result the country code will be the default one which is reported from firmware. Country code is important, so ath12k also need to restore it to the value which was used before recovery. This is only needed for platforms which support the current_cc_support hardware parameter. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kang Yang <quic_kangyang@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250401020840.357-5-quic_kangyang@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: add 11d scan offload supportWen Gong
The flow of 11d scan is: 1. trigger 11d scan. 2. receive, parse, and update 11d scan result. 3. stop 11d scan. So need to add handler for WMI_11D_SCAN_START_CMDID and WMI_11D_SCAN_STOP_CMDID to trigger/stop 11d scan. Add process of WMI event WMI_11D_NEW_COUNTRY_EVENTID for 11d scan result. There are two points that need to be noted: 1. The 11d scan priority is 'MEDIUM' in firmware, the hw scan priority is 'LOW'. When 11d scan is running, hw scan will be canceled. To avoid this, change the hw scan priority to 'MEDIUM' when 11d scan is running. 2. Need to add wait_for_completion_timeout() for scan.complete in ath12k_reg_update_chan_list() because 11d scan will cost more than 5 seconds. Due to another existing wait in ath12k_scan_stop(), there will be two scan.complete in different threads. Therefore use complete_all() instead of complete() for scan.complete. complete_all() can work well when it is only one thread wait for scan.complete. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kang Yang <quic_kangyang@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250401020840.357-4-quic_kangyang@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: use correct WMI command to set country code for WCN7850Wen Gong
When userspace tries to set country code by NL80211_REGDOM_SET_BY_USER hint(like iw reg set XX), it will pass new country code to ath12k. Then ath12k will set this new country code to firmware by WMI_SET_INIT_COUNTRY_CMDID. For AP based chips(QCN92xx), WMI_SET_INIT_COUNTRY_CMDID is the correct command. However, for STATION based chips(WCN7850), it need to use WMI_SET_CURRENT_COUNTRY_CMDID. Add flag current_cc_support in hardware parameters. It is used to distinguish AP/STA platform. After that, the firmware will work normally and the regulatory feature works well for WCN7850. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kang Yang <quic_kangyang@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250401020840.357-3-quic_kangyang@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: add configure country code for WCN7850Wen Gong
Currently, WMI_SET_INIT_COUNTRY_CMDID is used to set country code for WCN7850 and QCN9274. But WMI_SET_INIT_COUNTRY_CMDID is not the correct command for WCN7850. Add handler to send WMI_SET_CURRENT_COUNTRY_CMDID to firmware, which is used for WCN7850 to update country code. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kang Yang <quic_kangyang@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250401020840.357-2-quic_kangyang@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-02wifi: ath12k: Fix memory leak due to multiple rx_stats allocationSidhanta Sahu
rx_stats for each arsta is allocated when adding a station. arsta->rx_stats will be freed when a station is removed. Redundant allocations are occurring when the same station is added multiple times. This causes ath12k_mac_station_add() to be called multiple times, and rx_stats is allocated each time. As a result there is memory leaks. Prevent multiple allocations of rx_stats when ath12k_mac_station_add() is called repeatedly by checking if rx_stats is already allocated before allocating again. Allocate arsta->rx_stats if arsta->rx_stats is NULL respectively. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-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: Sidhanta Sahu <sidhanta.sahu@oss.qualcomm.com> Signed-off-by: Muna Sinada <muna.sinada@oss.qualcomm.com> Reviewed-by: Mahendran P <quic_mahep@quicinc.com> Link: https://patch.msgid.link/20250326213538.2214194-1-muna.sinada@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-03-31Reapply "wifi: ath11k: restore country code during resume"Baochen Qiang
This reverts commit d3e154d7776ba57ab679fb816fb87b627fba21c9. With non-WoWLAN suspend support brought back, commit 7f0343b7b871 ("wifi: ath11k: restore country code during resume") needs to be brought back as well. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250328-ath11k-bring-hibernation-back-v3-6-23405ae23431@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-03-31wifi: ath11k: choose default PM policy for hibernationBaochen Qiang
Now WoWLAN mode is chosen for those machines listed in the quirk table. This works for suspend (S3) but breaks for hibernation (S4), because WoWLAN mode requires WLAN power to be sustained, which is not the case during hibernation. For hibernation, the default mode should be used. Register a PM notifier with which kernel can notify us of the actual PM operation: if system is going to suspend, the original PM policy is honored; while if it is hibernation, overwrite it with default policy. To summarize: for suspend (S3), WoWLAN mode is chosen for machines listed in the quirk table, non-WoWLAN mode for others; for hibernation (S4), non-WoWLAN mode is chosen for all. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250328-ath11k-bring-hibernation-back-v3-5-23405ae23431@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-03-31wifi: ath11k: support non-WoWLAN mode suspend as wellBaochen Qiang
Previously commit 166a490f59ac ("wifi: ath11k: support hibernation") was reverted due to [1], so currently we only support WoWLAN mode suspend. This works well in scenarios where WLAN power is sustained during suspend, however breaks in those where power is cut off. This change basically brings the reverted commit back, but differs in that we decide based on the PM policy to choose WoWLAN mode suspend or the non-WoWLAN mode. As stated in the previous patch for now the PM policy is determined based on machine models. That said we will choose WoWLAN mode suspend if we are running on machines listed in ath11k_pm_quirk_table, otherwise we choose the other one. [1] https://bugzilla.kernel.org/show_bug.cgi?id=219196 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250328-ath11k-bring-hibernation-back-v3-4-23405ae23431@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-03-31wifi: ath11k: refactor ath11k_core_suspend/_resume()Baochen Qiang
Due to [1] we currently put WLAN target into WoWLAN mode regardless of machine models. In upcoming patches we will support another mode, and finally which mode is chosen depends on the exact machine model. To prepare for such change, refactor the actual WoWLAN stuff in ath11k_core_suspend() into a new helper ath11k_core_suspend_wow(), this increase the code readability when the new suspend mode is added in upcoming patches. Same change applies to ath11k_core_resume(); [1] https://bugzilla.kernel.org/show_bug.cgi?id=219196 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250328-ath11k-bring-hibernation-back-v3-3-23405ae23431@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-03-31wifi: ath11k: introduce ath11k_core_continue_suspend_resume()Baochen Qiang
Currently ath11k_core_suspend() and ath11k_core_resume() have the same check before going on. In upcoming patches the check is needed by some newly added functions as well. To avoid duplicate code, introduce a new helper ath11k_core_continue_suspend_resume() which does such check internally. Callers can decide whether to go on based on its return value. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250328-ath11k-bring-hibernation-back-v3-2-23405ae23431@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
generated by cgit (git 2.34.1) at 2025-07-15 08:14:57 +0000