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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9BA25C53219 for ; Wed, 29 Jul 2026 02:34:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding: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=nyD2ZLyTq5wiEGeeAjWZ6IXuUql2AWbemWMgNg/K29s=; b=uhEed8pmEvhe9IHH9abM4bqC3H zmT6ySDi60CjzKL/jwjynYNt1vP6FV9voXyFB0R2cs9oMW7kawVCBJwLdo8lUEZ9ay8TbawkYPr1C OmnBZ6EjiUwz3UcR70VsrZATfsNptYH78uZjyyXlSP0N4G+fCaS+Mks97IJRt4TLxYURTqZUstORD Md+zpIS4uFgSiOQ0Kwnp/CwztY1SLN5fuv/Dp8ZgVXrE89OTZ7yPSS47DtzjW4ieH48WthOElHWm2 uquIehdXtxsivF8eEzTd3g1h/+mJJoAMJwY9WIR3qGLFSFqkOKsS9JmrSSgHS+eIhtZXoNnHsqguj 5iC/hQZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wou89-00000006i49-00yC; Wed, 29 Jul 2026 02:34:49 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wou86-00000006i34-31OM for linux-mediatek@lists.infradead.org; Wed, 29 Jul 2026 02:34:47 +0000 X-UUID: 0b964c3e8af611f1acbe4559397dec65-20260728 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=nyD2ZLyTq5wiEGeeAjWZ6IXuUql2AWbemWMgNg/K29s=; b=WuOhQ1q5eRTNAVVfACdte3xw3F4tgtWoZG47rptcSEiPcCKS2mVMM7IpRZbMbEP5AzISyq9SPIpbwkP5tZ7/yELI3DWbSWGbfdFieiAU4GE4LKSArhqiiMtE0MA8WgYW9FRzli5CF/5QMkSCIwStD8D5UACIhJdn/ijn6pfK3v4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.18,REQID:85d5573d-d781-4d8f-856e-71e60294c2ef,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:8a735a6,CLOUDID:001c8fa9-cb7c-4e20-9880-6cc7cfd6c326,B ulkID:nil,BulkQuantity:0,SF:81|82|102|836|865|888|898,TC:-5,Content:0|15|5 0|99,EDM:-3,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:-1,COL:0,OSI:0, OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 0b964c3e8af611f1acbe4559397dec65-20260728 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1419815078; Tue, 28 Jul 2026 19:34:38 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.29; Wed, 29 Jul 2026 10:34:36 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.2562.29 via Frontend Transport; Wed, 29 Jul 2026 10:34:36 +0800 From: Eason Lai To: , CC: , , , , , , , , , , Subject: [PATCH v2 0/3] wifi: mt76: Fix TX performance degradation when IOMMU is enabled Date: Wed, 29 Jul 2026 10:34:31 +0800 Message-ID: <20260729023434.1105517-1-eason.lai@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260709075558.1654164-1-eason.lai@mediatek.com> References: <20260709075558.1654164-1-eason.lai@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260728_193446_770988_F7B86F9F X-CRM114-Status: UNSURE ( 9.66 ) X-CRM114-Notice: Please train this message. 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 This series adds a TX preallocated buffer mechanism to fix the TX performance degradation observed after enabling IOMMU. Currently this feature is only enabled on MT8196, where it has been validated. Changes in v2: - Reword cover letter subject to add wifi: mt76: prefix Eason Lai (3): wifi: mt76: Separate skb and ptr pointers in mt76_txwi_cache wifi: mt76: mt792x: Add TX page pool support for IOMMU-enabled systems wifi: mt76: mt792x: Restrict TX page pool to MT8196 platform drivers/net/wireless/mediatek/mt76/dma.c | 28 +- drivers/net/wireless/mediatek/mt76/dma.h | 3 + drivers/net/wireless/mediatek/mt76/mt76.h | 9 +- .../wireless/mediatek/mt76/mt76_connac_mac.c | 6 + .../net/wireless/mediatek/mt76/mt7925/pci.c | 2 + drivers/net/wireless/mediatek/mt76/mt792x.h | 1 + .../net/wireless/mediatek/mt76/mt792x_dma.c | 279 +++++++++++++++++- 7 files changed, 317 insertions(+), 11 deletions(-) -- 2.45.2