wifi: ath12k: Fix WARN_ON during firmware crash in split-phy

Message ID	20240529034405.2863150-1-quic_aarasahu@quicinc.com
State	New
Headers	show Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 94EA8273DC for <linux-wireless@vger.kernel.org>; Wed, 29 May 2024 03:44:29 +0000 (UTC) From: Aaradhana Sahu <quic_aarasahu@quicinc.com> To: <ath12k@lists.infradead.org> CC: <linux-wireless@vger.kernel.org>, Aaradhana Sahu <quic_aarasahu@quicinc.com> Subject: [PATCH] wifi: ath12k: Fix WARN_ON during firmware crash in split-phy Date: Wed, 29 May 2024 09:14:05 +0530 Message-ID: <20240529034405.2863150-1-quic_aarasahu@quicinc.com> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain
Series	wifi: ath12k: Fix WARN_ON during firmware crash in split-phy \| expand wifi: ath12k: Fix WARN_ON during firmware crash in split-phy

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index e7f628e935e4..9fac8b1b064e 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -1059,8 +1059,6 @@ static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab) mutex_unlock(&ar->conf_mutex); } - /* Restart after all the link/radio halt */ - ieee80211_restart_hw(ah->hw); break; case ATH12K_HW_STATE_OFF: ath12k_warn(ab, @@ -1087,7 +1085,8 @@ static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab) static void ath12k_core_restart(struct work_struct *work) { struct ath12k_base *ab = container_of(work, struct ath12k_base, restart_work); - int ret; + struct ath12k_hw *ah; + int ret, i; ret = ath12k_core_reconfigure_on_crash(ab); if (ret) { @@ -1095,8 +1094,12 @@ static void ath12k_core_restart(struct work_struct *work) return; } - if (ab->is_reset) - complete_all(&ab->reconfigure_complete); + if (ab->is_reset) { + for (i = 0; i < ab->num_hw; i++) { + ah = ab->ah[i]; + ieee80211_restart_hw(ah->hw); + } + } complete(&ab->restart_completed); } @@ -1150,20 +1153,14 @@ static void ath12k_core_reset(struct work_struct *work) ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset starting\n"); ab->is_reset = true; - atomic_set(&ab->recovery_start_count, 0); - reinit_completion(&ab->recovery_start); atomic_set(&ab->recovery_count, 0); ath12k_core_pre_reconfigure_recovery(ab); - reinit_completion(&ab->reconfigure_complete); ath12k_core_post_reconfigure_recovery(ab); ath12k_dbg(ab, ATH12K_DBG_BOOT, "waiting recovery start...\n"); - time_left = wait_for_completion_timeout(&ab->recovery_start, - ATH12K_RECOVER_START_TIMEOUT_HZ); - ath12k_hif_irq_disable(ab); ath12k_hif_ce_irq_disable(ab); @@ -1246,8 +1243,6 @@ struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size, mutex_init(&ab->core_lock); spin_lock_init(&ab->base_lock); init_completion(&ab->reset_complete); - init_completion(&ab->reconfigure_complete); - init_completion(&ab->recovery_start); INIT_LIST_HEAD(&ab->peers); init_waitqueue_head(&ab->peer_mapping_wq); diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h index 7d20b09c52e6..96fafa0e05dc 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -846,11 +846,8 @@ struct ath12k_base { struct work_struct reset_work; atomic_t reset_count; atomic_t recovery_count; - atomic_t recovery_start_count; bool is_reset; struct completion reset_complete; - struct completion reconfigure_complete; - struct completion recovery_start; /* continuous recovery fail count */ atomic_t fail_cont_count; unsigned long reset_fail_timeout; diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index 784964ae03ec..33616ab795af 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -5834,28 +5834,6 @@ static int ath12k_mac_config_mon_status_default(struct ath12k *ar, bool enable) /* TODO: Need to support new monitor mode */ } -static void ath12k_mac_wait_reconfigure(struct ath12k_base *ab) -{ - int recovery_start_count; - - if (!ab->is_reset) - return; - - recovery_start_count = atomic_inc_return(&ab->recovery_start_count); - - ath12k_dbg(ab, ATH12K_DBG_MAC, "recovery start count %d\n", recovery_start_count); - - if (recovery_start_count == ab->num_radios) { - complete(&ab->recovery_start); - ath12k_dbg(ab, ATH12K_DBG_MAC, "recovery started success\n"); - } - - ath12k_dbg(ab, ATH12K_DBG_MAC, "waiting reconfigure...\n"); - - wait_for_completion_timeout(&ab->reconfigure_complete, - ATH12K_RECONFIGURE_TIMEOUT_HZ); -} - static int ath12k_mac_start(struct ath12k *ar) { struct ath12k_hw *ah = ar->ah; @@ -5987,7 +5965,6 @@ static int ath12k_mac_op_start(struct ieee80211_hw *hw) break; case ATH12K_HW_STATE_RESTARTING: ah->state = ATH12K_HW_STATE_RESTARTED; - ath12k_mac_wait_reconfigure(ah->ab); break; case ATH12K_HW_STATE_RESTARTED: case ATH12K_HW_STATE_WEDGED:

wifi: ath12k: Fix WARN_ON during firmware crash in split-phy

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