diff options
Diffstat (limited to 'package/kernel/mac80211/patches/ath11k/0017-wifi-ath11k-Trigger-sta-disconnect-on-hardware-resta.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/ath11k/0017-wifi-ath11k-Trigger-sta-disconnect-on-hardware-resta.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/ath11k/0017-wifi-ath11k-Trigger-sta-disconnect-on-hardware-resta.patch b/package/kernel/mac80211/patches/ath11k/0017-wifi-ath11k-Trigger-sta-disconnect-on-hardware-resta.patch new file mode 100644 index 0000000000..f95e5027b2 --- /dev/null +++ b/package/kernel/mac80211/patches/ath11k/0017-wifi-ath11k-Trigger-sta-disconnect-on-hardware-resta.patch @@ -0,0 +1,119 @@ +From a018750a2cceaf4427c4ee3d9ce3e83a171d5bd6 Mon Sep 17 00:00:00 2001 +From: Youghandhar Chintala <quic_youghand@quicinc.com> +Date: Fri, 4 Nov 2022 14:24:03 +0530 +Subject: [PATCH] wifi: ath11k: Trigger sta disconnect on hardware restart + +Currently after the hardware restart triggered from the driver, the +station interface connection remains intact, since a disconnect trigger +is not sent to userspace. This can lead to a problem in targets where +the wifi mac sequence is added by the firmware. + +After the target restart, its wifi mac sequence number gets reset to +zero. Hence AP to which our device is connected will receive frames with +a wifi mac sequence number jump to the past, thereby resulting in the +AP dropping all these frames, until the frame arrives with a wifi mac +sequence number which AP was expecting. + +To avoid such frame drops, its better to trigger a station disconnect +upon target hardware restart which can be done with API +ieee80211_reconfig_disconnect exposed to mac80211. + +The other targets are not affected by this change, since the hardware +params flag is not set. + +Reported-by: kernel test robot <lkp@intel.com> + +Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 + +Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com> +Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> +Link: https://lore.kernel.org/r/20221104085403.11025-1-quic_youghand@quicinc.com +--- + drivers/net/wireless/ath/ath11k/core.c | 6 ++++++ + drivers/net/wireless/ath/ath11k/hw.h | 1 + + drivers/net/wireless/ath/ath11k/mac.c | 7 +++++++ + 3 files changed, 14 insertions(+) + +--- a/drivers/net/wireless/ath/ath11k/core.c ++++ b/drivers/net/wireless/ath/ath11k/core.c +@@ -195,6 +195,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = true, + .tx_ring_size = DP_TCL_DATA_RING_SIZE, + .smp2p_wow_exit = false, ++ .support_fw_mac_sequence = false, + }, + { + .name = "qca6390 hw2.0", +@@ -277,6 +278,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = true, + .tx_ring_size = DP_TCL_DATA_RING_SIZE, + .smp2p_wow_exit = false, ++ .support_fw_mac_sequence = true, + }, + { + .name = "qcn9074 hw1.0", +@@ -356,6 +358,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = true, + .tx_ring_size = DP_TCL_DATA_RING_SIZE, + .smp2p_wow_exit = false, ++ .support_fw_mac_sequence = false, + }, + { + .name = "wcn6855 hw2.0", +@@ -438,6 +441,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = true, + .tx_ring_size = DP_TCL_DATA_RING_SIZE, + .smp2p_wow_exit = false, ++ .support_fw_mac_sequence = true, + }, + { + .name = "wcn6855 hw2.1", +@@ -519,6 +523,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = true, + .tx_ring_size = DP_TCL_DATA_RING_SIZE, + .smp2p_wow_exit = false, ++ .support_fw_mac_sequence = true, + }, + { + .name = "wcn6750 hw1.0", +@@ -597,6 +602,7 @@ static const struct ath11k_hw_params ath + .tcl_ring_retry = false, + .tx_ring_size = DP_TCL_DATA_RING_SIZE_WCN6750, + .smp2p_wow_exit = true, ++ .support_fw_mac_sequence = true, + }, + }; + +--- a/drivers/net/wireless/ath/ath11k/hw.h ++++ b/drivers/net/wireless/ath/ath11k/hw.h +@@ -219,6 +219,7 @@ struct ath11k_hw_params { + bool tcl_ring_retry; + u32 tx_ring_size; + bool smp2p_wow_exit; ++ bool support_fw_mac_sequence; + }; + + struct ath11k_hw_ops { +--- a/drivers/net/wireless/ath/ath11k/mac.c ++++ b/drivers/net/wireless/ath/ath11k/mac.c +@@ -8010,6 +8010,7 @@ ath11k_mac_op_reconfig_complete(struct i + struct ath11k *ar = hw->priv; + struct ath11k_base *ab = ar->ab; + int recovery_count; ++ struct ath11k_vif *arvif; + + if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART) + return; +@@ -8045,6 +8046,12 @@ ath11k_mac_op_reconfig_complete(struct i + ath11k_dbg(ab, ATH11K_DBG_BOOT, "reset success\n"); + } + } ++ if (ar->ab->hw_params.support_fw_mac_sequence) { ++ list_for_each_entry(arvif, &ar->arvifs, list) { ++ if (arvif->is_up && arvif->vdev_type == WMI_VDEV_TYPE_STA) ++ ieee80211_hw_restart_disconnect(arvif->vif); ++ } ++ } + } + + mutex_unlock(&ar->conf_mutex); |