From patchwork Fri Feb 23 16:14:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthieu Baerts X-Patchwork-Id: 775640 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F22984FBB; Fri, 23 Feb 2024 16:14:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708704895; cv=none; b=SeDDY1ahLKFQ0ymCEBLVlSS6VTWGeMovLPP1spiG3CqjzAsHpL1Xf+HSIx+vJdM0FG93adYDrA1Zt3tX5+EhAwWi1V1Kyk8kVA1hdXEBR7GgfE0ZJfuMbUZvFmkXLMsldI2ZMjHOPcFf1iaYfrDjHDR1fNH6i6wcMboeiIV24j4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708704895; c=relaxed/simple; bh=oMPcTg/HR4My2+n2kEfVTapwJZ1FPd+w13TvTlMGAjU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=eZVyIt0zf5OfbzR5Qc8aBZF4m4nXSMv9MZWDrBBg3a1bDKNZ/Xh+BhiHANUpD6kusNtrfjRb3l1KyXIMDCawfAu64k1zS5OdAt89m6Rm4Vi/5CG3tvlj2ivCoi+0EQRgUz+umIyPLoLMQRsbgCN5+b8jIZ972KdmgFEj7xHsp/Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k+BmOVmG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="k+BmOVmG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9455C433A6; Fri, 23 Feb 2024 16:14:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708704894; bh=oMPcTg/HR4My2+n2kEfVTapwJZ1FPd+w13TvTlMGAjU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=k+BmOVmGu1WVPgWV4tYATEy6Do8BYxMpQTMFseaweyFcBFympiJdfwoRAewYGG3cP SY6EPq7p2y/MOVlxvpFG9jDXs3D0cfFUBVK/HDCHQkC1wVBv7nIPYVlERiEPrVQQfI K49wNZfJ1CKShcWbTdtD/84xXoLo3WHAqrGSrBqFOy8AMhPS4xisKyzXwnWGcyKI9A 3viuMXfqbT3fAnf/t4wOA4x/z/UWd5vxDvZcx+afLvzq0YNiFe19fowsc89Zxcmyow b+r6XGQoScDX5GgaorUKEGoOldDxch3BvMfp7rJJ33M993JWCroLg6HeXgrlJmN5HY 7syt9QjVvaG+A== From: "Matthieu Baerts (NGI0)" Date: Fri, 23 Feb 2024 17:14:14 +0100 Subject: [PATCH net 04/10] mptcp: push at DSS boundaries Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240223-upstream-net-20240223-misc-fixes-v1-4-162e87e48497@kernel.org> References: <20240223-upstream-net-20240223-misc-fixes-v1-0-162e87e48497@kernel.org> In-Reply-To: <20240223-upstream-net-20240223-misc-fixes-v1-0-162e87e48497@kernel.org> To: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Florian Westphal , Kishen Maloor , Shuah Khan , Peter Krystad , Christoph Paasch Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1234; i=matttbe@kernel.org; h=from:subject:message-id; bh=LIWA9w8Hu+BN9Y93ANJ69iVx7kuDZyfmJaoFzfkKwwg=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBl2MRqohB1/YeTq+OuqgfAFqE+ePW4jlRE5MgU5 dBhI0B65D+JAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZdjEagAKCRD2t4JPQmmg c8+gD/0TZOAF6HLWBlDgOkRrcVEyvyirDvqagkCH4NhEHL3pxfQ3Yss/bShQ8PAtfjS4x58pd8G An5gZ/9oMnL3b76r/pphg4y1m+h7yJct0Akv9tNRXzlvHmXhkZdqpcrUrjInpznaDKcpoyrtRtc fG4yHBe9Pux/Q4h9BvvnoVhxGJCDExtd/tgoA0NbxDxFx2ACwifYshqjVVVkLCyNrc2d3p+YjUZ NVcs7O4i8S2OMfddssO1IsOSQUJBIj4KbVOqgFWBofDZtsfdxkMM51LPRDltbj5DK3FCdCXOLG9 oyeM0BEz576RQXnZ6v2cNFhmYRjYxnqZgkiXu+wEIMoX42OJDkbA8TFvDhBQONutMgLAJyXCfq0 vvYc7LVRI/oU2Gy2eQi388Wy6h4oDif+NOMhbqX+Qb2PkfIMH0hM3rq9CV6kUjpsGt8/zG4EDBf JkQ121N9cBZRJBWGrhB6rO0JRAdei25kj0uHYK/HthmaBZkEvBpAP3GJ+VNtRrLFTOj6Vfn/jLU U2vyzeGvCDMVnRTuCYF0bkjAkS61cTtGq68biANBrHODMZh1Gcnz/eUbgvPKizuWXWERBHHH37K NMASOEQ82uSbYJTRVgjhV5D3atJIvnVpuRBlanPJ+Ptx/DiaIp6ox+wiIjGDMOcp+BH0J0aQh0S c2hEkViXtfrVC8Q== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 From: Paolo Abeni when inserting not contiguous data in the subflow write queue, the protocol creates a new skb and prevent the TCP stack from merging it later with already queued skbs by setting the EOR marker. Still no push flag is explicitly set at the end of previous GSO packet, making the aggregation on the receiver side sub-optimal - and packetdrill self-tests less predictable. Explicitly mark the end of not contiguous DSS with the push flag. Fixes: 6d0060f600ad ("mptcp: Write MPTCP DSS headers to outgoing data packets") Cc: stable@vger.kernel.org Signed-off-by: Paolo Abeni Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) --- net/mptcp/protocol.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 948606a537da..442fa7d9b57a 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1260,6 +1260,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk, mpext = mptcp_get_ext(skb); if (!mptcp_skb_can_collapse_to(data_seq, skb, mpext)) { TCP_SKB_CB(skb)->eor = 1; + tcp_mark_push(tcp_sk(ssk), skb); goto alloc_skb; }