From fe36e70f766ed99c5a140f8e265e81dd39897bb6 Mon Sep 17 00:00:00 2001 From: Rakesh Pillai Date: Mon, 3 Jun 2019 17:41:33 +0300 Subject: ath10k: wait for vdev delete response from firmware When we add an interface immediately after removing the interface the vdev deletion in firmware might not have been completed. We need to synchronize the vdev creation with the firmware. Wait for vdev delete response from firmware when we remove an interface. Tested HW: WCN3990 Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1 Signed-off-by: Rakesh Pillai Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/net/wireless/ath/ath10k/mac.c') diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index c4e7adf3ae45..572c03667110 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -1011,6 +1011,7 @@ static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id) arg.channel.max_antenna_gain = channel->max_antenna_gain * 2; reinit_completion(&ar->vdev_setup_done); + reinit_completion(&ar->vdev_delete_done); ret = ath10k_wmi_vdev_start(ar, &arg); if (ret) { @@ -1060,6 +1061,7 @@ static int ath10k_monitor_vdev_stop(struct ath10k *ar) ar->monitor_vdev_id, ret); reinit_completion(&ar->vdev_setup_done); + reinit_completion(&ar->vdev_delete_done); ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id); if (ret) @@ -1401,6 +1403,7 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif) lockdep_assert_held(&ar->conf_mutex); reinit_completion(&ar->vdev_setup_done); + reinit_completion(&ar->vdev_delete_done); ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id); if (ret) { @@ -1437,6 +1440,7 @@ static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, lockdep_assert_held(&ar->conf_mutex); reinit_completion(&ar->vdev_setup_done); + reinit_completion(&ar->vdev_delete_done); arg.vdev_id = arvif->vdev_id; arg.dtim_period = arvif->dtim_period; @@ -5455,6 +5459,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw, struct ath10k *ar = hw->priv; struct ath10k_vif *arvif = (void *)vif->drv_priv; struct ath10k_peer *peer; + unsigned long time_left; int ret; int i; @@ -5496,6 +5501,15 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw, ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n", arvif->vdev_id, ret); + if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) { + time_left = wait_for_completion_timeout(&ar->vdev_delete_done, + ATH10K_VDEV_DELETE_TIMEOUT_HZ); + if (time_left == 0) { + ath10k_warn(ar, "Timeout in receiving vdev delete response\n"); + goto out; + } + } + /* Some firmware revisions don't notify host about self-peer removal * until after associated vdev is deleted. */ @@ -5546,6 +5560,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw, ath10k_mac_txq_unref(ar, vif->txq); +out: mutex_unlock(&ar->conf_mutex); } -- cgit v1.2.3