From patchwork Fri Nov 5 10:02:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bo Jiao X-Patchwork-Id: 12604481 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F054C433F5 for ; Fri, 5 Nov 2021 10:12:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 6650360EBC for ; Fri, 5 Nov 2021 10:12:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 6650360EBC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=u17H0wAvr0GBApJXz2rg2SC+G11bEmmaOQ1PalZlhIo=; b=wHEqjFlceH5iL0 B2Xej3USjvR+K6fAZv/p1Lpy0NhK0opgA0jg1heKnd4GbQiC7z4l13zXIvdsBjLcIogw9wt8FKDQ2 2Sj2uQFkSanNJOtHfEN5VJzSe//Ue0ftU7PxMYNEZw9CeEP3AsAPue+EQNcVeacX7hvXcNFWv9Joj 6WoPkGOmP889qFHhY2oJIf1EJtBVoIxTXuCdVON+MH0WG3b68IImrZ/GhhCE4vbK9U9BRXUXw8inX /DmTKcWZp/H8VHP8rTsYjw1HFpNgFaVh2MSZFxno800je5/+rHOQzj+nLNDNpRaE0MLd5+ynEQ9al gepiYh/J6E2Ymc0tShPw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1miwDA-00B4jR-En; Fri, 05 Nov 2021 10:12:40 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1miwD2-00B4ad-5k for linux-mediatek@lists.infradead.org; Fri, 05 Nov 2021 10:12:33 +0000 X-UUID: 758f5c7557814d7a902460c5537269be-20211105 X-UUID: 758f5c7557814d7a902460c5537269be-20211105 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1439253419; Fri, 05 Nov 2021 03:12:21 -0700 Received: from MTKMBS34N1.mediatek.inc (172.27.4.172) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 5 Nov 2021 03:02:23 -0700 Received: from MTKCAS32.mediatek.inc (172.27.4.184) by MTKMBS34N1.mediatek.inc (172.27.4.172) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 5 Nov 2021 18:02:17 +0800 Received: from mcddlt001.gcn.mediatek.inc (10.19.240.15) by MTKCAS32.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 5 Nov 2021 18:02:16 +0800 From: Bo Jiao To: Felix Fietkau CC: linux-wireless , Ryder Lee , Xing Song , Sujuan Chen , Shayne Chen , "Evelyn Tsai" , linux-mediatek , Bo Jiao Subject: [PATCH v2 07/11] mt76: mt7915: add txfree event v3 Date: Fri, 5 Nov 2021 18:02:06 +0800 Message-ID: <117c56dcb217519cde4fe43e84d48cb9fb6b3226.1636105953.git.Bo.Jiao@mediatek.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211105_031232_289225_51A8D387 X-CRM114-Status: GOOD ( 15.61 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Bo Jiao Update txfree v3 format. This is an intermediate patch to add mt7916 support. Co-developed-by: Sujuan Chen Signed-off-by: Sujuan Chen Co-developed-by: Ryder Lee Signed-off-by: Ryder Lee Signed-off-by: Bo Jiao Reviewed-by: Shayne Chen --- .../net/wireless/mediatek/mt76/mt7915/mac.c | 42 ++++++++++++------- .../net/wireless/mediatek/mt76/mt7915/mac.h | 8 ++-- 2 files changed, 32 insertions(+), 18 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c index 4212dbb..d2f0537 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c @@ -1282,8 +1282,10 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb) struct ieee80211_sta *sta = NULL; LIST_HEAD(free_list); struct sk_buff *tmp; - u8 i, count; - bool wake = false; + bool v3, wake = false; + u16 total, count = 0; + u32 txd = le32_to_cpu(free->txd); + u32 *cur_info; /* clean DMA queues and unmap buffers first */ mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false); @@ -1293,14 +1295,12 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb) mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_BE], false); } - /* - * TODO: MT_TX_FREE_LATENCY is msdu time from the TXD is queued into PLE, - * to the time ack is received or dropped by hw (air + hw queue time). - * Should avoid accessing WTBL to get Tx airtime, and use it instead. - */ - count = FIELD_GET(MT_TX_FREE_MSDU_CNT, le16_to_cpu(free->ctrl)); - for (i = 0; i < count; i++) { - u32 msdu, info = le32_to_cpu(free->info[i]); + total = FIELD_GET(MT_TX_FREE_MSDU_CNT, le16_to_cpu(free->ctrl)); + v3 = (FIELD_GET(MT_TX_FREE_VER, txd) == 0x4); + + for (cur_info = &free->info[0]; count < total; cur_info++) { + u32 msdu, info = le32_to_cpu(*cur_info); + u8 i; /* * 1'b1: new wcid pair. @@ -1311,7 +1311,6 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb) struct mt76_wcid *wcid; u16 idx; - count++; idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); wcid = rcu_dereference(dev->mt76.wcid[idx]); sta = wcid_to_sta(wcid); @@ -1326,12 +1325,25 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb) continue; } - msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); - txwi = mt76_token_release(mdev, msdu, &wake); - if (!txwi) + if (v3 && (info & MT_TX_FREE_MPDU_HEADER)) continue; - mt7915_txwi_free(dev, txwi, sta, &free_list); + for (i = 0; i < 1 + v3; i++) { + if (v3) { + msdu = (info >> (15 * i)) & MT_TX_FREE_MSDU_ID_V3; + if (msdu == MT_TX_FREE_MSDU_ID_V3) + continue; + } else { + msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); + } + + txwi = mt76_token_release(mdev, msdu, &wake); + if (!txwi) + continue; + + mt7915_txwi_free(dev, txwi, sta, &free_list); + count++; + } } mt7915_mac_sta_poll(dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h index 7a2c740..4504ebc 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h @@ -298,18 +298,20 @@ struct mt7915_txp { struct mt7915_tx_free { __le16 rx_byte_cnt; __le16 ctrl; - u8 txd_cnt; - u8 rsv[3]; + __le32 txd; __le32 info[]; } __packed __aligned(4); +#define MT_TX_FREE_VER GENMASK(18, 16) #define MT_TX_FREE_MSDU_CNT GENMASK(9, 0) #define MT_TX_FREE_WLAN_ID GENMASK(23, 14) #define MT_TX_FREE_LATENCY GENMASK(12, 0) /* 0: success, others: dropped */ -#define MT_TX_FREE_STATUS GENMASK(14, 13) #define MT_TX_FREE_MSDU_ID GENMASK(30, 16) #define MT_TX_FREE_PAIR BIT(31) +#define MT_TX_FREE_MPDU_HEADER BIT(30) +#define MT_TX_FREE_MSDU_ID_V3 GENMASK(14, 0) + /* will support this field in further revision */ #define MT_TX_FREE_RATE GENMASK(13, 0)