From nobody Tue Oct 15 00:47:21 2024 X-Original-To: bugs@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 4XSFmp0t2Xz5ZQcq for ; Tue, 15 Oct 2024 00:47:22 +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 "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSFmn5vklz4FCS for ; Tue, 15 Oct 2024 00:47:21 +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=1728953241; 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; bh=MDi8MO/H7JsVNgQ7aHuI4S3ZxhVUi9n4nXCMewKnrz4=; b=enaQxOl/KfX2rSuvpHPq5Q7Qi23ZJ4NiCHFF+I/Zo2eUUr+ZUNJQPkDm33a/4hNrP8L1ZC ss9foH1Q6MwJvypzLDHVINnqdQ6Tcrd8JptJLv7J58mZVevqA//ko71B1/VgO/8+Sldzv1 EmS2z2QYJt983UfGUbADHCEV+5LaJBTOC9rF09FHURp4R9moa/IHQMc4dWaXb4y7yXHJJP hpbRmPLBBtgwU/dkyNHJh1h8enF5nbRteYxXY3RcUuzUG6QK0wvsjkkh9KASE8TY8zscwh RtE6gWqbM1SqC0LpbFfYxg9aMMBvQpmxqpryN3IuaK/Oa1R+lD3zcYnHkTpsvA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1728953241; a=rsa-sha256; cv=none; b=vp/oimmwx1w6ayTcPEaXTGB0vY8SY3jbRtPJg4oJ5mb+ev37pOHnDhY9xQizGNSXdOkHug ayZE2P/c4OqXZ/SYqyrOnn4hD2Ggj5sYNNhfOaPNRAFujgQqy6uN0XU+sLFUCGF2/QHKj+ 5fje5nYat1yonnGdHG/OFXO1ItNFlIkLmmnb1W6hoY8co2Hp9dx+EXYFRT3cyriCQ+Z2ZU TGB1xXQcA5dGP1dtAvwZg69AfvkqHuqP/peVfY1doPHJoPGkfmzZdQNIQ9iIppt60q82JH mHUSu6N/sBc/H6+qPC5otcZ4t0aycQ9WpjGvf/3S8nR8vY1gZnxjlK5I3tgPgw== 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 4XSFmn52pzz111C for ; Tue, 15 Oct 2024 00:47:21 +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 49F0lLqP015657 for ; Tue, 15 Oct 2024 00:47:21 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 49F0lL7X015656 for bugs@FreeBSD.org; Tue, 15 Oct 2024 00:47:21 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: bugs@FreeBSD.org Subject: [Bug 282095] enic breaks when changing MTU on interfaces with fib other than 0 Date: Tue, 15 Oct 2024 00:47:21 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: freebsd-bugzilla@thismonkey.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282095 Bug ID: 282095 Summary: enic breaks when changing MTU on interfaces with fib other than 0 Product: Base System Version: 14.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: freebsd-bugzilla@thismonkey.com I'm running a Cisco UCS C220M4 with an MLOM card (2 x 10Gb). I wanted to t= est the enic driver for throughput, so I plugged a DAC cable between the ports, installed a fresh version of 14.1-RELEASE and ran the following: sysctl net.fibs=3D3 ifconfig enic0 inet 172.12.1.1/24 fib 1 ifconfig enic1 inet 172.12.2.1/24 fib 2 route add 172.12.2.0/24 -iface enic0 -fib 1 route add 172.12.1.0/24 -iface enic1 -fib 2 I could then ping/iper3 between the interfaces no problem (with setfib 1 ..= .) As soon as I alter the MTU of either interface to 9000 bytes, I can no long= er ping, all IP breaks. PS. The reason I wanted to bump the MTU was I could only get ~3.7Gb/s of UDP across the interfaces: [ 5] 0.00-10.00 sec 4.27 GBytes 3.67 Gbits/sec 0.001 ms 1142296/428= 0693 (27%) receiver You can see 27% from the sender's side was dropped. Packets were 1460 byte= s. --=20 You are receiving this mail because: You are the assignee for the bug.=