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wifi: iwlwifi: mld: drop connection on D3 resume failure

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When FW crashes on D3 exit, iwl_mld_nic_error() sets
STATUS_RESET_PENDING and queues restart wk, but mac80211's resume
callback synchronously calls iwl_trans_stop_device() which clears
the flag. As a result restart wk skips sw_reset, and the FW error
recovery buffer is never read.

The new FW boots with empty BA state and initial sequence numbers,
while the AP still holds its A-MPDU RX reorder window.
This causes MPDUs to be dropped as IWL_RX_MPDU_REORDER_BA_OLD_SN until
ADDBA is renegotiated.

We don't know how long the firmware has been in an error state
or whether the AP still considers us associated, so keeping the
connection alive is not worth it.
Call ieee80211_resume_disconnect() when iwl_mld_wait_d3_notif() fails,
and let userspace reassociate.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20260717172958.3e10c8498f53.Icf5644b42d79e984ecc16abfa873bd37f611e778@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
This commit is contained in:
Ayala Beker 2026-07-17 17:31:08 +03:00 committed by Miri Korenblit
parent a790f60cc4
commit 4f5384b58b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/intel/iwlwifi/mld/d3.c
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@ -2219,6 +2219,9 @@ int iwl_mld_wowlan_resume(struct iwl_mld *mld)
ret = iwl_mld_wait_d3_notif(mld, &resume_data, true);
if (ret) {
IWL_ERR(mld, "Couldn't get the d3 notifs %d\n", ret);
if (bss_vif->cfg.assoc)
ieee80211_resume_disconnect(bss_vif);
goto err;
}