From nobody Thu Oct 29 07:41:33 2026 X-Original-To: dev-commits-src-branches@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 4jFblK41xXz6wGYK for ; Thu, 29 Oct 2026 07:41:33 +0000 (UTC) (envelope-from git@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) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 4jFblK1D98z4SKP for ; Thu, 29 Oct 2026 07:41:33 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793259693; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=/GMiLqnVVeKHgqz8OdeqKorm69HfzAeibgrbZsMLRAQ=; b=rXGIt8haMDcxdOu2Ld2yVdLreCDD0+tFtX72R5h/OGi2tKvksPz0NY27h3k1ND0drLPaMJ 215KodDxUC93TPzvLnzLT0WUoNk2I8eYKFHzIv2PB8N/ZAk92MXWwXGye1Xlfys2ANFEcv QuRdVmj28f4SRmTwkRubTqZs7clW3xKaPQmcYrqS1FucoOYPxWWBUqgphG+fH/UOP4ywLy 8LgqdbpO85wpkllJ5WCSf/T5NMjPEaMlFJHxw1mdVj9dmFrwG8Q/Ms2vvVK9sB9qTt+DfL 2HN4gsE8fSEbtOODU2q5UThjMZnf2rSYV7ASopzs1zbItIRqcPtDW9KS79AL5Q== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1793259693; b=r2s2zSkcgEu4zgsd6AnMBqaM40v2Tlhq1ifSROIDVjvan9Z9LZ2ph3e34NXfSsladucTxA YodUUF0LAPVkeGdW5QveoVZfOwmHJoVcWEX/BN3XDrpZ/PI7/7Br6PjZ4wJB0aF5ibncfK VSiaEwmIDSuL1nqcGsurSfxWEA+a+9zpGaXRPydUxJxqJjiqTVrOXJEPaChYt6Oh1WighT Z0aEW6Q+BsxalAf1aOdt3HFLQVA6ZguIrudbPTBCybYWeRE4uYxZN2I062N3VjNfiHzb0U wpKvVKiSpmOW/kn5sWbkqFDM7YxkxTFRUeTPnbSoWr1Mg4j2QjXSbbvXnKE9kg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793259693; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=/GMiLqnVVeKHgqz8OdeqKorm69HfzAeibgrbZsMLRAQ=; b=kEtBSRoaCwJd76K4VtNBfKXFY4E9/gTqMADBqgyN3Tj9wHuCtYyfd/KD4ZemOKgXjl1OXY TMrOoOkMP8InzpnVdri69fxnmCQEdCwaqEXgNaXq1twu5aZDCNJw9Qb60ezhnLcL+PCBYo i+rNsSArSkAOYgmANyULly0BTaY9UWYG9sqXUeDpw4x9bdHrxJqLJmUpvAspdUtPSTpzvI Z3per7L5a3asfIzkgX8O6MPaP/+2QuAk5aSL0VRM2Ya292bGsAjL4bqYiA/119efx04lLG vn1R3qo2B45IAXZRmSM2AkZl1i59Dwx/fzoa9LWWHwmd2daIojuRgkFZ46wb2g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4jFblK0WnGzVJs for ; Thu, 29 Oct 2026 07:41:33 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 43735 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 29 Oct 2026 07:41:33 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: bigJ From: Kevin Bowling Subject: git: 02327c24ddd9 - stable/15 - rss_config: Add option to enable rss udp hashing List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org List-Id: Commits to the stable branches of the FreeBSD src repository List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kbowling X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 02327c24ddd94718b2d64751035be04ea48343f1 Auto-Submitted: auto-generated Date: Thu, 29 Oct 2026 07:41:33 +0000 Message-Id: <6ae2f8ad.43735.44b87a81@gitrepo.freebsd.org> The branch stable/15 has been updated by kbowling: URL: https://cgit.FreeBSD.org/src/commit/?id=02327c24ddd94718b2d64751035be04ea48343f1 commit 02327c24ddd94718b2d64751035be04ea48343f1 Author: bigJ AuthorDate: 2026-03-01 20:14:49 +0000 Commit: Kevin Bowling CommitDate: 2026-10-29 07:37:58 +0000 rss_config: Add option to enable rss udp hashing Added optional system tunable parameter to enable 4-tuple rss udp hashing. Signed-off-by: bigJ Reviewed by: adrian, pouria Pull Request: https://github.com/freebsd/freebsd-src/pull/2057 (cherry picked from commit 283ef95d1677b873903f8b8fa077fbfa3a5e0036) --- sys/net/rss_config.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/sys/net/rss_config.c b/sys/net/rss_config.c index 5be5aecd15d9..9b805085d5ce 100644 --- a/sys/net/rss_config.c +++ b/sys/net/rss_config.c @@ -150,6 +150,11 @@ int rss_debug = 0; SYSCTL_INT(_net_inet_rss, OID_AUTO, debug, CTLFLAG_RWTUN, &rss_debug, 0, "RSS debug level"); +static u_int rss_udp_4tuple = 0; +SYSCTL_INT(_net_inet_rss, OID_AUTO, udp_4tuple, CTLFLAG_RDTUN, + &rss_udp_4tuple, 0, + "Enable UDP 4-tuple RSS hashing (src/dst IP + src/dst port)"); + /* * RSS secret key, intended to prevent attacks on load-balancing. Its * effectiveness may be limited by algorithm choice and available entropy @@ -488,19 +493,24 @@ rss_gethashconfig(void) * So for now disable UDP 4-tuple hashing until all of the other * pieces are in place. */ - return ( + u_int config; + + config = RSS_HASHTYPE_RSS_IPV4 - | RSS_HASHTYPE_RSS_TCP_IPV4 - | RSS_HASHTYPE_RSS_IPV6 - | RSS_HASHTYPE_RSS_TCP_IPV6 - | RSS_HASHTYPE_RSS_IPV6_EX - | RSS_HASHTYPE_RSS_TCP_IPV6_EX -#if 0 - | RSS_HASHTYPE_RSS_UDP_IPV4 - | RSS_HASHTYPE_RSS_UDP_IPV6 - | RSS_HASHTYPE_RSS_UDP_IPV6_EX -#endif - ); + | RSS_HASHTYPE_RSS_TCP_IPV4 + | RSS_HASHTYPE_RSS_IPV6 + | RSS_HASHTYPE_RSS_TCP_IPV6 + | RSS_HASHTYPE_RSS_IPV6_EX + | RSS_HASHTYPE_RSS_TCP_IPV6_EX; + + if (rss_udp_4tuple) { + config |= + RSS_HASHTYPE_RSS_UDP_IPV4 + | RSS_HASHTYPE_RSS_UDP_IPV6 + | RSS_HASHTYPE_RSS_UDP_IPV6_EX; + } + + return (config); } /*