From nobody Sat Aug 12 12:11:29 2023 X-Original-To: xen@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4RNKJd2jwhz4mSDm for ; Sat, 12 Aug 2023 12:11:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4RNKJd10F2z4fwk for ; Sat, 12 Aug 2023 12:11:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1691842289; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GiZcZKwivmzLic7JTntRcqCZdBDP5GxYL1qSitooMt8=; b=d2kVGkQ7WyTefUCZbeuDfqhQW86219rDJLXMJhTsUehDSg2OY6go1JuPXPYzWHxvxZMsgx ht1WOx55dZa6tkATFxswsXQA2xvov1dEsSZ20wIofnX7Ro5Jl+QqQbL3Jyvy2AXxGBFCD6 TbTN20kj2gYXKWBLDdhXVlmL7g5eyfcnur1XycIRp8QCuySYxvteEIdAFYPjsVuch1/YAZ UuDZz5kO+qGOZw69kYZRuE/wItZ+ONsScrKT4qmhAaNWQWJOKseF7B5QAd2cTywborupnG T+BOOzoJrtTUwzDkoVfBSHCKjNfInkWB7pIaiH83LupFMAnT4/6rPNYS7+gqMg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1691842289; a=rsa-sha256; cv=none; b=dBn/8q7j59VSMOjXy+v7rIG6i1HtRCh66qcuq9mJmj7Ncm4oGyy7171GOJo0QYQOx8XH4n YF5dfr0icgUhfnp4J+/W5caa2XpjNvTdRkiJpaL2xsdm7Aav3opdiXmq32orJWv6DxUFRx 6SU5uT2Yy2XzoI17/l5Tep1cKa0mRsOTsLxqVZ0/A9boo2/m6DzO/AlsWSVHK57P1a5f3d u9JA7QQo+tt2rcY6ePgHbgalI1VzInK35r21UxN9r2J4nI0tOVaVKx8mhDwKuKYvqh5gz3 GY3EfCCLqG8UGPFTXhUIpwuSVItsIM92kEyEMku5IdyLFW4wSvZGR9abclFQlQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4RNKJd049Vz4km for ; Sat, 12 Aug 2023 12:11:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 37CCBSqt012707 for ; Sat, 12 Aug 2023 12:11:28 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 37CCBS2r012706 for xen@FreeBSD.org; Sat, 12 Aug 2023 12:11:28 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: xen@FreeBSD.org Subject: [Bug 273046] xn: xen netfront does LRO even if packet forwarding is enabled Date: Sat, 12 Aug 2023 12:11:29 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: dfr@rabson.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: xen@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-xen List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-xen@freebsd.org X-BeenThere: freebsd-xen@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273046 --- Comment #3 from dfr@rabson.org --- Manually disabling LRO using something like 'ifconfig xn0 -lro' does solve = the issue. I can see logic in sys/netinet/tcp_lro.c which checks for forwarding in tcp_lro_rx_common but I think that code is only active for software LRO. If= lib also checks before calling tcp_lro_rx but that seems also to be only effect= ive for software LRO. So far I haven't been able to figure out how any other driver manages this.= I'm not even 100% sure which drivers support hardware LRO where coalescing happ= ens inside the NIC. --=20 You are receiving this mail because: You are the assignee for the bug.=