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ath11k: Add support for STA to handle beacon miss

PATCH In review Lavanya Suresh 2 participants 3 messages Feb 26, 2021 – Mar 9, 2021 Qualcomm Atheros ATH11K wireless driver

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Lavanya Suresh

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#0 lore raw

PATCH 1/1 ath11k: Add support for STA to handle beacon miss

When AP goes down without any indication to STA, firmware detects missing beacon, and sends wmi roam event with reason BEACON_MISS to the host.

Added support for STA mode to trigger disassociation from AP, on receiving this event from firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01717-QCAHKSWPL_SILICONZ-1
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by Lavanya Suresh <[email protected]>
---
 drivers/net/wireless/ath/ath11k/core.h |  2 +
 drivers/net/wireless/ath/ath11k/mac.c  | 79 +++++++++++++++++++++++++++++++---
 drivers/net/wireless/ath/ath11k/mac.h  |  2 +
 drivers/net/wireless/ath/ath11k/wmi.c  | 11 ++---
 4 files changed, 81 insertions(+), 13 deletions(-)
drivers/net/wireless/ath/ath11k/core.h +2 -0
index ad8e7cf..9f4370d 100644
@@ -34,6 +34,7 @@
 #define ATH11K_PRB_RSP_DROP_THRESHOLD ((ATH11K_TX_MGMT_TARGET_MAX_SUPPORT_WMI * 3) / 4)
 
 #define ATH11K_INVALID_HW_MAC_ID	0xFF
+#define ATH11K_CONNECTION_LOSS_HZ	(3 * HZ)
 
 extern unsigned int ath11k_frame_mode;
 

@@ -235,6 +236,7 @@ struct ath11k_vif {
 	u32 aid;
 	u8 bssid[ETH_ALEN];
 	struct cfg80211_bitrate_mask bitrate_mask;
+	struct delayed_work connection_loss_work;
 	int num_legacy_stations;
 	int rtscts_prot_mode;
 	int txpower;
drivers/net/wireless/ath/ath11k/mac.c +74 -5

103 lines not on this page · raw message

drivers/net/wireless/ath/ath11k/mac.h +2 -0
index 4555779..4bc59bd 100644
@@ -150,4 +150,6 @@ int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx);
 u8 ath11k_mac_bw_to_mac80211_bw(u8 bw);
 enum ath11k_supported_bw ath11k_mac_mac80211_bw_to_ath11k_bw(enum rate_info_bw bw);
 enum hal_encrypt_type ath11k_dp_tx_get_encrypt_type(u32 cipher);
+void ath11k_mac_handle_beacon(struct ath11k *ar, struct sk_buff *skb);
+void ath11k_mac_handle_beacon_miss(struct ath11k *ar, u32 vdev_id);
 #endif
drivers/net/wireless/ath/ath11k/wmi.c +3 -8
index ca5cda8..5ca2d80 100644
@@ -6171,10 +6171,8 @@ static void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 		}
 	}
 
-	/* TODO: Pending handle beacon implementation
-	 *if (ieee80211_is_beacon(hdr->frame_control))
-	 *	ath11k_mac_handle_beacon(ar, skb);
-	 */
+	if (ieee80211_is_beacon(hdr->frame_control))
+		ath11k_mac_handle_beacon(ar, skb);
 
 	ath11k_dbg(ab, ATH11K_DBG_MGMT,
 		   "event mgmt rx skb %pK len %d ftype %02x stype %02x\n",

@@ -6393,10 +6391,7 @@ static void ath11k_roam_event(struct ath11k_base *ab, struct sk_buff *skb)
 
 	switch (roam_ev.reason) {
 	case WMI_ROAM_REASON_BEACON_MISS:
-		/* TODO: Pending beacon miss and connection_loss_work
-		 * implementation
-		 * ath11k_mac_handle_beacon_miss(ar, vdev_id);
-		 */
+		ath11k_mac_handle_beacon_miss(ar, roam_ev.vdev_id);
 		break;
 	case WMI_ROAM_REASON_BETTER_AP:
 	case WMI_ROAM_REASON_LOW_RSSI:
Signature · 7 lines
2.7.4


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#1 lore raw
Quoted 4 lines · Lavanya Suresh

When AP goes down without any indication to STA, firmware detects missing beacon, and sends wmi roam event with reason BEACON_MISS to the host.

Quoted 8 lines

Added support for STA mode to trigger disassociation from AP, on receiving this event from firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01717-QCAHKSWPL_SILICONZ-1
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by Lavanya Suresh <[email protected]>
Signed-off-by Kalle Valo <[email protected]>

Patch applied to ath-next branch of ath.git, thanks.

26f697923729 ath11k: Add support for STA to handle beacon miss

Signature · 3 lines
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
#2 lore raw
In reply to Lavanya Suresh
Quoted 4 lines · Lavanya Suresh

When AP goes down without any indication to STA, firmware detects missing beacon, and sends wmi roam event with reason BEACON_MISS to the host.

Quoted 8 lines

Added support for STA mode to trigger disassociation from AP, on receiving this event from firmware.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01717-QCAHKSWPL_SILICONZ-1
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by Lavanya Suresh <[email protected]>
Signed-off-by Kalle Valo <[email protected]>

Patch applied to ath-next branch of ath.git, thanks.

26f697923729 ath11k: Add support for STA to handle beacon miss

Signature · 9 lines
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches


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