diff options
| author | Ramya Gnanasekar <ramya.gnanasekar@oss.qualcomm.com> | 2026-02-27 09:41:27 +0530 |
|---|---|---|
| committer | Jeff Johnson <jeff.johnson@oss.qualcomm.com> | 2026-03-02 13:02:05 -0800 |
| commit | f33a8e41826831fc8ceb5f62833488cd9388ed59 (patch) | |
| tree | 9b7ed5e40e9281c69040bd89a0930cda2475807c /drivers/net/wireless/ath/ath12k | |
| parent | 6508c9752451a7e5e44a325e8563897a67f5344b (diff) | |
| download | lwn-f33a8e41826831fc8ceb5f62833488cd9388ed59.tar.gz lwn-f33a8e41826831fc8ceb5f62833488cd9388ed59.zip | |
wifi: ath12k: Set up MLO after SSR
During recovery of an MLO setup from a core reset,
ATH12K_GROUP_FLAG_REGISTERED is set because ath12k_mac_unregister is not
called during core reset. So, when an MLO setup is recovering from a core
reset, ath12k_core_mlo_setup() is skipped. Hence, the firmware will not
have information about partner links. This makes MLO association fail
after recovery.
To resolve this, call ath12k_core_mlo_setup() during recovery, to set up
MLO. Also, if MLO setup fails during recovery, call
ath12k_mac_unregister() and ath12k_mac_destroy() to unregister mac and
then tear down the mac structures.
Also, initiate MLO teardown in the hardware group stop sequence to align
with the hardware group start sequence.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01181-QCAHKSWPL_SILICONZ-1
Signed-off-by: Ramya Gnanasekar <ramya.gnanasekar@oss.qualcomm.com>
Signed-off-by: Roopni Devanathan <roopni.devanathan@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20260227041127.3265879-1-roopni.devanathan@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath12k')
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/core.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index 9dca1a0af73e..218c0a0c9699 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -1017,6 +1017,8 @@ static void ath12k_core_hw_group_stop(struct ath12k_hw_group *ag) ath12k_mac_unregister(ag); + ath12k_mac_mlo_teardown(ag); + for (i = ag->num_devices - 1; i >= 0; i--) { ab = ag->ab[i]; if (!ab) @@ -1134,8 +1136,14 @@ static int ath12k_core_hw_group_start(struct ath12k_hw_group *ag) lockdep_assert_held(&ag->mutex); - if (test_bit(ATH12K_GROUP_FLAG_REGISTERED, &ag->flags)) + if (test_bit(ATH12K_GROUP_FLAG_REGISTERED, &ag->flags)) { + ret = ath12k_core_mlo_setup(ag); + if (WARN_ON(ret)) { + ath12k_mac_unregister(ag); + goto err_mac_destroy; + } goto core_pdev_create; + } ret = ath12k_mac_allocate(ag); if (WARN_ON(ret)) |