From nobody Sun Aug 16 22:19:31 2026 X-Original-To: dev-commits-src-all@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 4hNVkc5vT7z6phSC for ; Sun, 16 Aug 2026 22:19:36 +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 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hNVkc4y63z3PQ2 for ; Sun, 16 Aug 2026 22:19:36 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786918776; 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=ZvZLTSR1a6cnGf2w/noGun0KsaJKvZ36RcuUKPbFt6g=; b=RzsahIPR+5n5i/RmsNSiei8vwj0yMSJauHmlZPkKXyncnHMBKter8J8IrRGEAlO7nRrc/D HMOFHLFD7SpYBem9VQmi/7N99iDhTjisur5IAXOrMbcuoKSXxWTfaTywop1nSUtHcvoeSh +X/jrgBEXdkhwLp5r4EzIdM6GCl/XGYUt+3l8UOIUgfGmO45j4gVFaLsiUvCuQ90Gcrvtp fLYBsZGRJD3sh7LZnDm661RdYsEkUxmXkCoXeeuMrDo+psBe3nKGI7x2PSX4RsD3yeRC6t sCpjBmJihLNKbA1SlOfcOr4oKwqPjm723NxsqaYuMjOxUJQdxaaLjyR5Ez6tMw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1786918776; a=rsa-sha256; cv=none; b=HOlFQmx7WSJcb1Vjs1PcinFI+IN+BfqbUZKUYFM5kegaCfdULB8rvRQJpw7bphaK+09lwJ Nyabc3nUW6/bNZnJEDERkEBZxP5VbZwlhSTU8qZ/ONMduc5X/gZD0AClDXifQVyF93WO58 1OSR9gx8Xf1cMlkCCjprB3AHCmy72cwuOynyAq6tYXE2uoI0wUkkD6I1KoDQjUNe4Ee6+1 rRcyV08Hu1LBaVfO+SBjR/X3a69Ebo1zohu7GK6g/fPWzJHGhLAkYXwq4T8yP8vqYFKD6l pQfktJygRI1CTGTkm9eZfMOde5Ra43RatrxSBOtqSgsw8i+jY8sCqvJErdvs2A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786918776; 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=ZvZLTSR1a6cnGf2w/noGun0KsaJKvZ36RcuUKPbFt6g=; b=R1Ul8HejM47GUSYWK02F1mLFt6xnVjVfXOZ25NOW2s69RtKxxtcbhNmSBMp8xgOnaug0/x CeMWvxuEm5vrWYhm6Irp9WhXCb34LXwNCj7YePWR94ZzT3kI3uxM33EItQEkLL//Z0JQ5r XaAx22t/JbPvCX/Gi6wn29AvAc4g2fQm7Vm4DpcVtlZzjZxphE0Ficl9X/UOV7XsJVh6VV +rg6ZdEKO6netbJOwLQXVtg3HX5StY0+l1QxuD/QHmfLCSFltvDg6dYPFsO/NCHRPRAh5i DdBjUa2dfiFeIUFMJKj7i3zPwn7uaua/Ql2KwPOogrIXU3HpONKg4MCl3/LPhA== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hNVkc40tGzmvD for ; Sun, 16 Aug 2026 22:19:36 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 2313c by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sun, 16 Aug 2026 22:19:31 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Kevin Bowling Subject: git: f75a28ea852c - stable/14 - iflib: Add restart transactions for IOV reconfiguration List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: 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/14 X-Git-Reftype: branch X-Git-Commit: f75a28ea852c824d92f2fbc10de9412e8b3b7de4 Auto-Submitted: auto-generated Date: Sun, 16 Aug 2026 22:19:31 +0000 Message-Id: <6a823773.2313c.612143d5@gitrepo.freebsd.org> The branch stable/14 has been updated by kbowling: URL: https://cgit.FreeBSD.org/src/commit/?id=f75a28ea852c824d92f2fbc10de9412e8b3b7de4 commit f75a28ea852c824d92f2fbc10de9412e8b3b7de4 Author: Kevin Bowling AuthorDate: 2026-07-28 21:53:18 +0000 Commit: Kevin Bowling CommitDate: 2026-08-16 22:18:01 +0000 iflib: Add restart transactions for IOV reconfiguration Some devices remap the PF queues when entering or leaving SR-IOV. Add opt-in PCI IOV helpers that hold the iflib context lock across the complete stop, driver callback, and restart transaction. Existing drivers continue to use the non-restarting helpers. Sponsored by: BBOX.io (cherry picked from commit f8fa2d77bc305bec519f9f02afe211e903c57573) --- sys/net/iflib.c | 22 ++++++++++++++++++++++ sys/net/iflib.h | 2 ++ 2 files changed, 24 insertions(+) diff --git a/sys/net/iflib.c b/sys/net/iflib.c index dcdbe816f9aa..0403b2d63ca8 100644 --- a/sys/net/iflib.c +++ b/sys/net/iflib.c @@ -5626,6 +5626,28 @@ iflib_device_iov_uninit(device_t dev) CTX_UNLOCK(ctx); } +void +iflib_device_iov_uninit_restart(device_t dev) +{ + if_ctx_t ctx; + bool restart; + + ctx = device_get_softc(dev); + + CTX_LOCK(ctx); + /* + * RUNNING can be clear while a watchdog reset is pending but the + * hardware is still live. Always stop before the driver changes its + * queue layout, and use IFF_UP only to preserve administrative state. + */ + restart = (if_getflags(ctx->ifc_ifp) & IFF_UP) != 0; + iflib_stop(ctx); + IFDI_IOV_UNINIT(ctx); + if (restart) + iflib_init_locked(ctx); + CTX_UNLOCK(ctx); +} + int iflib_device_iov_add_vf(device_t dev, uint16_t vfnum, const nvlist_t *params) { diff --git a/sys/net/iflib.h b/sys/net/iflib.h index fbadab0af565..69ac12b27d0b 100644 --- a/sys/net/iflib.h +++ b/sys/net/iflib.h @@ -446,7 +446,9 @@ int iflib_device_shutdown(device_t); int iflib_device_probe_vendor(device_t); int iflib_device_iov_init(device_t, uint16_t, const nvlist_t *); +int iflib_device_iov_init_restart(device_t, uint16_t, const nvlist_t *); void iflib_device_iov_uninit(device_t); +void iflib_device_iov_uninit_restart(device_t); int iflib_device_iov_add_vf(device_t, uint16_t, const nvlist_t *); /*