From patchwork Wed Nov 18 05:59:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Kazior X-Patchwork-Id: 7644811 Return-Path: X-Original-To: patchwork-ath10k@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 48E5E9F392 for ; Wed, 18 Nov 2015 06:01:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3ADF42062A for ; Wed, 18 Nov 2015 06:01:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2C89F205F7 for ; Wed, 18 Nov 2015 06:01:36 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZyvoC-0000bN-As; Wed, 18 Nov 2015 06:01:32 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zyvo7-0000Zt-Qz for ath10k@bombadil.infradead.org; Wed, 18 Nov 2015 06:01:27 +0000 Received: from mail-lb0-x22f.google.com ([2a00:1450:4010:c04::22f]) by merlin.infradead.org with esmtps (Exim 4.85 #2 (Red Hat Linux)) id 1Zyvo6-0000g4-Es for ath10k@lists.infradead.org; Wed, 18 Nov 2015 06:01:27 +0000 Received: by lbbsy6 with SMTP id sy6so18358041lbb.2 for ; Tue, 17 Nov 2015 21:59:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tieto.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=9ky7OqFG9FIgsm+wqUH9Ia1RfTS+O1f6Lpab5VsTXHw=; b=LAhFLI+iSUEbNNa6evtX2KU6m7RnKarHG/Yu6Kkzd3wOREfKdMtG90E80ZHyPHDSov 4JLVQuS2aGipDhSQeiXs1IKxjQ2JVqwZ5Q4nCWLI5hcKbgpKXIA1cr+MkU8EC8GPCfXy 3CIyiXWqNN8xtNaXufJymGPTiX6bBnrYrNuD4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=9ky7OqFG9FIgsm+wqUH9Ia1RfTS+O1f6Lpab5VsTXHw=; b=VM3P/gdgtqhXNMCiaZCJMjFhndu5D8o80LrhtOtAkZsJtMSr21cBi1VPJZNzll6GcV wt03y2N4fFima+riK0ClpGMe2Y86HlkXVl4IYeoEPeF3FFsMuRTF9M5Lj9V8x6ohFdB/ ycx81l1RWF9KNbIdK71/Z+X0YehZ3RV99NGgcoFFt+b90f380wHQkPJsohyBxHZ9qBYT qLovyC8h9e6u7IkVEuPxC0dbFoTn1I5ijg+a0i7sjYwaqk3EaIwlmXDyOAfwUaFRFvFg IiS58CsGF4eznlPRdENn8rYGiHfJvxCAqFpSb1YWxx34ptVl4gywIe7rn1rj9XdHvgF0 qIrg== X-Gm-Message-State: ALoCoQmMrhgXk758Hcy9gIwL26NZwO/Qe5MKNOHCCRkxSgcA21q1OhwvvrF6HC4B9yQS2osFd0HDp6NTMJ+68M431ZMqw5R+308YbcdOizbSK294CXtKaCrZnApU6A84US0wJJ2VfxJgJJHyCH0Vxbb1hADeFpcCfqZnbmfQLBOfr9vNVf1cf6+0cwI429AqcHp1NC7SOHyE X-Received: by 10.112.54.229 with SMTP id m5mr1423765lbp.125.1447826372772; Tue, 17 Nov 2015 21:59:32 -0800 (PST) Received: from localhost.localdomain ([91.198.246.10]) by smtp.gmail.com with ESMTPSA id rm5sm165290lbb.20.2015.11.17.21.59.31 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 17 Nov 2015 21:59:31 -0800 (PST) From: Michal Kazior To: ath10k@lists.infradead.org Subject: [PATCH v3 3/9] ath10k: remove txmode from skb_cb Date: Wed, 18 Nov 2015 06:59:17 +0100 Message-Id: <1447826363-16818-4-git-send-email-michal.kazior@tieto.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1447826363-16818-1-git-send-email-michal.kazior@tieto.com> References: <87mvuj585b.fsf@kamboji.qca.qualcomm.com> <1447826363-16818-1-git-send-email-michal.kazior@tieto.com> X-DomainID: tieto.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151118_010126_804587_BD806069 X-CRM114-Status: GOOD ( 17.89 ) X-Spam-Score: -2.7 (--) X-BeenThere: ath10k@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-wireless@vger.kernel.org, Michal Kazior MIME-Version: 1.0 Sender: "ath10k" Errors-To: ath10k-bounces+patchwork-ath10k=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It was wasteful to keep it in the struct because it can be passed as function argument down the tx path. Signed-off-by: Michal Kazior --- drivers/net/wireless/ath/ath10k/core.h | 1 - drivers/net/wireless/ath/ath10k/htt.h | 4 +++- drivers/net/wireless/ath/ath10k/htt_tx.c | 9 +++---- drivers/net/wireless/ath/ath10k/mac.c | 40 ++++++++++++++++++++++++-------- 4 files changed, 38 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index b91f69286a4f..0228000ecf50 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -85,7 +85,6 @@ struct ath10k_skb_cb { dma_addr_t paddr; u8 eid; u8 vdev_id; - enum ath10k_hw_txrx_mode txmode; struct { u8 tid; diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 2b87ed6458db..47ca048feaf0 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -1602,7 +1602,9 @@ void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt, bool limit_mgmt_desc); int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb); void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id); int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *); -int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *); +int ath10k_htt_tx(struct ath10k_htt *htt, + enum ath10k_hw_txrx_mode txmode, + struct sk_buff *msdu); void ath10k_htt_rx_pktlog_completion_handler(struct ath10k *ar, struct sk_buff *skb); diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index b57335d47c78..f6fb4f131542 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -532,7 +532,8 @@ err: return res; } -int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) +int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode, + struct sk_buff *msdu) { struct ath10k *ar = htt->ar; struct device *dev = ar->dev; @@ -584,7 +585,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) ieee80211_has_protected(hdr->frame_control)) { skb_put(msdu, IEEE80211_CCMP_MIC_LEN); } else if (!skb_cb->htt.nohwcrypt && - skb_cb->txmode == ATH10K_HW_TXRX_RAW && + txmode == ATH10K_HW_TXRX_RAW && ieee80211_has_protected(hdr->frame_control)) { skb_put(msdu, IEEE80211_CCMP_MIC_LEN); } @@ -597,7 +598,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) goto err_free_msdu_id; } - switch (skb_cb->txmode) { + switch (txmode) { case ATH10K_HW_TXRX_RAW: case ATH10K_HW_TXRX_NATIVE_WIFI: flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; @@ -626,7 +627,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) frags_paddr = skb_cb->htt.txbuf_paddr; } - flags0 |= SM(skb_cb->txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); + flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); break; case ATH10K_HW_TXRX_MGMT: flags0 |= SM(ATH10K_HW_TXRX_MGMT, diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index be323ad537ad..4d3b8dc8e5de 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -3335,24 +3335,24 @@ unlock: return ret; } -static void ath10k_mac_tx(struct ath10k *ar, struct sk_buff *skb) +static void ath10k_mac_tx(struct ath10k *ar, enum ath10k_hw_txrx_mode txmode, + struct sk_buff *skb) { - struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb); struct ath10k_htt *htt = &ar->htt; int ret = 0; - switch (cb->txmode) { + switch (txmode) { case ATH10K_HW_TXRX_RAW: case ATH10K_HW_TXRX_NATIVE_WIFI: case ATH10K_HW_TXRX_ETHERNET: - ret = ath10k_htt_tx(htt, skb); + ret = ath10k_htt_tx(htt, txmode, skb); break; case ATH10K_HW_TXRX_MGMT: if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX, ar->fw_features)) ret = ath10k_mac_tx_wmi_mgmt(ar, skb); else if (ar->htt.target_version_major >= 3) - ret = ath10k_htt_tx(htt, skb); + ret = ath10k_htt_tx(htt, txmode, skb); else ret = ath10k_htt_mgmt_tx(htt, skb); break; @@ -3382,9 +3382,13 @@ void ath10k_offchan_tx_work(struct work_struct *work) { struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work); struct ath10k_peer *peer; + struct ath10k_vif *arvif; struct ieee80211_hdr *hdr; + struct ieee80211_vif *vif; + struct ieee80211_sta *sta; struct sk_buff *skb; const u8 *peer_addr; + enum ath10k_hw_txrx_mode txmode; int vdev_id; int ret; unsigned long time_left; @@ -3434,7 +3438,22 @@ void ath10k_offchan_tx_work(struct work_struct *work) ar->offchan_tx_skb = skb; spin_unlock_bh(&ar->data_lock); - ath10k_mac_tx(ar, skb); + /* It's safe to access vif and sta - conf_mutex guarantees that + * sta_state() and remove_interface() are locked exclusively + * out wrt to this offchannel worker. + */ + arvif = ath10k_get_arvif(ar, vdev_id); + if (arvif) { + vif = arvif->vif; + sta = ieee80211_find_sta(vif, peer_addr); + } else { + vif = NULL; + sta = NULL; + } + + txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb); + + ath10k_mac_tx(ar, txmode, skb); time_left = wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ); @@ -3656,20 +3675,21 @@ static void ath10k_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif = info->control.vif; struct ieee80211_sta *sta = control->sta; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + enum ath10k_hw_txrx_mode txmode; /* We should disable CCK RATE due to P2P */ if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE) ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n"); + txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb); + ATH10K_SKB_CB(skb)->htt.is_offchan = false; ATH10K_SKB_CB(skb)->htt.freq = 0; ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr); ATH10K_SKB_CB(skb)->htt.nohwcrypt = !ath10k_tx_h_use_hwcrypto(vif, skb); ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif); - ATH10K_SKB_CB(skb)->txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, - skb); - switch (ATH10K_SKB_CB(skb)->txmode) { + switch (txmode) { case ATH10K_HW_TXRX_MGMT: case ATH10K_HW_TXRX_NATIVE_WIFI: ath10k_tx_h_nwifi(hw, skb); @@ -3706,7 +3726,7 @@ static void ath10k_tx(struct ieee80211_hw *hw, } } - ath10k_mac_tx(ar, skb); + ath10k_mac_tx(ar, txmode, skb); } /* Must not be called with conf_mutex held as workers can use that also. */