From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D8DAC433E0 for ; Fri, 26 Feb 2021 12:01:54 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DC35A6186A for ; Fri, 26 Feb 2021 12:01:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC35A6186A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Owner; bh=yDW8UoGtb8EogBH28ITz7z5IfsGHlU1zIVIxqENzN2c=; b=bNIZ+0+oA+ntG0VcRIevJjFP3O 2ZxiAlBbGCAHFlxxqHY8SELjfrBOgBZal3M1dmR+OimkxB+WJjy29jQ8cLGk47ezUnbV+/IUfw2qZ OkzPocmEK0tUOGBNP3ejSxDLw4+6KaYeP8o//I8X+n/YL0h6voxjyG4hod0QWoJIiSSiZQjXYBu5k XZf4q/UtYsqZAJQBvy1BFnZh/rdG7ns/02j0C90crPu2kvGMqkFfCDq+rNg5WJTyJMgchin+q62DU R5e4qm0+qz8s2pqYmxulpAYVfucAsCU6Kd8/KewXyMhzTXGUxbZhX6XPvQcd3zMUPSIyJkIy1H3yZ KWsVk2CA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFboc-0002qD-Cv; Fri, 26 Feb 2021 12:01:50 +0000 Received: from z11.mailgun.us ([104.130.96.11]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFboU-0002oq-A3 for ath11k@lists.infradead.org; Fri, 26 Feb 2021 12:01:48 +0000 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1614340907; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=jpruO1+MevPHLMOvmxcJcR7b+FAAZIJrSGev0HKg+e8=; b=gWfwmzajr8C0T6K5uOyGx1ErW0u5XypwG+ITE7XdYffRLQjLXnI9Bs4Jn8FJGGmEfcHDXkSz bO8mhkMYqEOMg/mMvPaJVyZTt1gYd/VelU2rFKmGIG7ig8Ze9JI8CuVZpkPWRttSQ4kBGhbX 85F54Bacvt3e8vMZmZP/vc5Jz64= X-Mailgun-Sending-Ip: 104.130.96.11 X-Mailgun-Sid: WyJmOGQ2ZiIsICJhdGgxMWtAbGlzdHMuaW5mcmFkZWFkLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-east-1.postgun.com with SMTP id 6038e3087f306299bf3f7824 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 26 Feb 2021 12:01:12 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D6063C433CA; Fri, 26 Feb 2021 12:01:11 +0000 (UTC) Received: from lavaks-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: lavaks) by smtp.codeaurora.org (Postfix) with ESMTPSA id F245BC433C6; Fri, 26 Feb 2021 12:01:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org F245BC433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=lavaks@codeaurora.org From: Lavanya Suresh To: ath11k@lists.infradead.org Subject: [PATCH] ath11k: Add support for STA to handle beacon miss Date: Fri, 26 Feb 2021 17:30:59 +0530 Message-Id: <1614340859-28867-1-git-send-email-lavaks@codeaurora.org> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210226_070147_465916_D9DCFD56 X-CRM114-Status: GOOD ( 18.81 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lavanya Suresh , linux-wireless@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org 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 --- 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(-) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index ad8e7cf..9f4370d 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -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; diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 3c1f35a..c9bd615 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -829,6 +829,75 @@ static void ath11k_control_beaconing(struct ath11k_vif *arvif, ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id); } +static void ath11k_mac_handle_beacon_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct sk_buff *skb = data; + struct ieee80211_mgmt *mgmt = (void *)skb->data; + struct ath11k_vif *arvif = (void *)vif->drv_priv; + + if (vif->type != NL80211_IFTYPE_STATION) + return; + + if (!ether_addr_equal(mgmt->bssid, vif->bss_conf.bssid)) + return; + + cancel_delayed_work(&arvif->connection_loss_work); +} + +void ath11k_mac_handle_beacon(struct ath11k *ar, struct sk_buff *skb) +{ + ieee80211_iterate_active_interfaces_atomic(ar->hw, + IEEE80211_IFACE_ITER_NORMAL, + ath11k_mac_handle_beacon_iter, + skb); +} + +static void ath11k_mac_handle_beacon_miss_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + u32 *vdev_id = data; + struct ath11k_vif *arvif = (void *)vif->drv_priv; + struct ath11k *ar = arvif->ar; + struct ieee80211_hw *hw = ar->hw; + + if (arvif->vdev_id != *vdev_id) + return; + + if (!arvif->is_up) + return; + + ieee80211_beacon_loss(vif); + + /* Firmware doesn't report beacon loss events repeatedly. If AP probe + * (done by mac80211) succeeds but beacons do not resume then it + * doesn't make sense to continue operation. Queue connection loss work + * which can be cancelled when beacon is received. + */ + ieee80211_queue_delayed_work(hw, &arvif->connection_loss_work, + ATH11K_CONNECTION_LOSS_HZ); +} + +void ath11k_mac_handle_beacon_miss(struct ath11k *ar, u32 vdev_id) +{ + ieee80211_iterate_active_interfaces_atomic(ar->hw, + IEEE80211_IFACE_ITER_NORMAL, + ath11k_mac_handle_beacon_miss_iter, + &vdev_id); +} + +static void ath11k_mac_vif_sta_connection_loss_work(struct work_struct *work) +{ + struct ath11k_vif *arvif = container_of(work, struct ath11k_vif, + connection_loss_work.work); + struct ieee80211_vif *vif = arvif->vif; + + if (!arvif->is_up) + return; + + ieee80211_connection_loss(vif); +} + static void ath11k_peer_assoc_h_basic(struct ath11k *ar, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -1760,7 +1829,7 @@ static void ath11k_bss_disassoc(struct ieee80211_hw *hw, arvif->is_up = false; - /* TODO: cancel connection_loss_work */ + cancel_delayed_work_sync(&arvif->connection_loss_work); } static u32 ath11k_mac_get_rate_hw_value(int bitrate) @@ -4615,10 +4684,8 @@ static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw, arvif->vif = vif; INIT_LIST_HEAD(&arvif->list); - - /* Should we initialize any worker to handle connection loss indication - * from firmware in sta mode? - */ + INIT_DELAYED_WORK(&arvif->connection_loss_work, + ath11k_mac_vif_sta_connection_loss_work); for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) { arvif->bitrate_mask.control[i].legacy = 0xffffffff; @@ -4827,6 +4894,8 @@ static void ath11k_mac_op_remove_interface(struct ieee80211_hw *hw, int ret; int i; + cancel_delayed_work_sync(&arvif->connection_loss_work); + mutex_lock(&ar->conf_mutex); ath11k_dbg(ab, ATH11K_DBG_MAC, "mac remove interface (vdev %d)\n", diff --git a/drivers/net/wireless/ath/ath11k/mac.h b/drivers/net/wireless/ath/ath11k/mac.h index 4555779..4bc59bd 100644 --- a/drivers/net/wireless/ath/ath11k/mac.h +++ b/drivers/net/wireless/ath/ath11k/mac.h @@ -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 diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index ca5cda8..5ca2d80 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -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: -- 2.7.4 -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k