From nobody Sat Oct 31 20:24:34 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 4jH8Zq16mPz6xFDZ for ; Sat, 31 Oct 2026 20:24:35 +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 4jH8Zp6Wdqz4Njt for ; Sat, 31 Oct 2026 20:24:34 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793478274; 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=lLdvqDxRjPpb5LdkFEkbKQTA9OR9XM34guGr7CCbY68=; b=K5Dw4VfUJ25n8GOQZSiab62zC59JhzZvYEyDITAjGLCIsquxC26/I1aPUFdp6TiGh2LL65 Yg8Wl58EQdmPN/ba0+itJXL2KdnE+7GrF++tiTY6ixMUhZxbDK6xmSk9SprOZ2Y1PYvBSM pjA54x0Aidsr/9eJkz2Mq+tL9a8JDvNWVK+6PSCHLfygpv/biI1aDgrU/+kXLuVV4520wh nc/L6NnOVMvobMFuq9/G09iQNpj3YfrHCdSwGEj74N/biuEi7koBgUKtuMUvoSwsZcIT2z toVdIJaE1G1aNjmQYVOVGJQsg5gY+yFYwzLFjBaFP9Q+7vbSK/B+eJulEXOK4Q== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1793478274; b=qa/uvfqJ2g5T6NptizZcDM9rCEGAwvhaiYsx3/5MICSvTMCOOn//hmpYVvpETcqO2oCdA3 oP2a4aqhG1zhV73pKkZztkEGF4I1W/sjTpc1a+/DjTlA4//KBqOzlgSxHz6Qc1anxuVfoJ vvgERRnRAgeUOOJMXN1QcjCScML+W0coebv14nIInsL6UvkEcc6HF9bBEtSKhgNcbMW8f9 Fso4m1RE7MGP6H2c8OvIMyRSDHVoUyTBpSflK1d3H3nDDQrwZXBNI65ILz5sn6nKHbjAIQ I77SCQEFa3r+fWVTz/0l+zvgYVkc+0jbt1QRqCI6JXaRX4eil0Z5eOysy4fIiA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793478274; 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=lLdvqDxRjPpb5LdkFEkbKQTA9OR9XM34guGr7CCbY68=; b=LXh5eqRaEjqns5msjitFAxcbJJplZ2pVFwzAjFxhuJQq38dZimU+n6nm9tE+63jNKbNLED gm/YNuCEWei4OeZlgxja3/0M5MyyIdaAlA73fzzKTDrx8g/t8UfHlRDrqLA82RX8FxgBqA CVtmSI25v5a4kzxISrqUaaYcmv+vu1gdBOHCcjlE0ObIFKyKc/q4ZmVutd5g+UsG4XK9LT ebf0G7qbzANFbilna0s+b2yxrxipqbeZtgQs1tIIb3rgAmI+KbFkf64ztLwuW77sZQTQj2 sTYotQijWsp0b6l4/YFHmouBAwNImZLCKQ7pfq/NU1EdiiaWF2nCI5cMwsv5xQ== 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 4jH8Zp5tZFzRZ3 for ; Sat, 31 Oct 2026 20:24:34 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 328f4 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sat, 31 Oct 2026 20:24:34 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Christos Longros From: Adrian Chadd Subject: git: 071c56dca173 - stable/15 - rge: make rx_process_limit a sysctl tunable List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: Commit messages for all branches of the 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: adrian X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 071c56dca173aab9dbd313bdf4039c17bc7183bb Auto-Submitted: auto-generated Date: Sat, 31 Oct 2026 20:24:34 +0000 Message-Id: <6ae64e82.328f4.350f7bfe@gitrepo.freebsd.org> The branch stable/15 has been updated by adrian: URL: https://cgit.FreeBSD.org/src/commit/?id=071c56dca173aab9dbd313bdf4039c17bc7183bb commit 071c56dca173aab9dbd313bdf4039c17bc7183bb Author: Christos Longros AuthorDate: 2026-03-25 01:27:14 +0000 Commit: Adrian Chadd CommitDate: 2026-10-31 20:15:05 +0000 rge: make rx_process_limit a sysctl tunable The number of packets processed per interrupt was hardcoded to 16. Add a per-interface sysctl dev.rge.%d.rx_process_limit tunable so users can adjust this value at runtime. Signed-off-by: Christos Longros Reviewed by: ziaee, adrian Differential Revision: https://reviews.freebsd.org/D56014 (cherry picked from commit 930a790c2abb3680a3449a1f9ce2eff2be7acc36) --- share/man/man4/rge.4 | 5 +++++ sys/dev/rge/if_rge.c | 3 ++- sys/dev/rge/if_rge_sysctl.c | 5 +++++ sys/dev/rge/if_rgevar.h | 2 ++ 4 files changed, 14 insertions(+), 1 deletion(-) diff --git a/share/man/man4/rge.4 b/share/man/man4/rge.4 index eea49e12af78..2b781e287e3c 100644 --- a/share/man/man4/rge.4 +++ b/share/man/man4/rge.4 @@ -147,6 +147,11 @@ tunables: .Bl -tag -width "xxxxxx" .It Va dev.rge.%d.debug Configure runtime debug output. This is a 32 bit bitmask. +.It Va dev.rge.%d.rx_process_limit +Maximum number of RX packets to process per interrupt. +The default value is 16. +Increasing this value may improve throughput on high-speed links at the +cost of increased interrupt latency. .El .Sh DIAGNOSTICS .Bl -diag diff --git a/sys/dev/rge/if_rge.c b/sys/dev/rge/if_rge.c index 5ae0b98f95a1..0007b07e0fa6 100644 --- a/sys/dev/rge/if_rge.c +++ b/sys/dev/rge/if_rge.c @@ -2099,9 +2099,10 @@ rge_rxeof(struct rge_queues *q, struct mbufq *mq) uint32_t rxstat, extsts; int i, mlen, rx = 0; int cons, prod; - int maxpkt = 16; /* XXX TODO: make this a tunable */ + int maxpkt; bool check_hwcsum; + maxpkt = sc->sc_rx_process_limit; check_hwcsum = ((if_getcapenable(sc->sc_ifp) & IFCAP_RXCSUM) != 0); RGE_ASSERT_LOCKED(sc); diff --git a/sys/dev/rge/if_rge_sysctl.c b/sys/dev/rge/if_rge_sysctl.c index a7d6e1572168..16001b4c1d94 100644 --- a/sys/dev/rge/if_rge_sysctl.c +++ b/sys/dev/rge/if_rge_sysctl.c @@ -232,6 +232,11 @@ rge_sysctl_attach(struct rge_softc *sc) "debug", CTLFLAG_RW, &sc->sc_debug, 0, "control debugging printfs"); + sc->sc_rx_process_limit = 16; + SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, + "rx_process_limit", CTLFLAG_RW, &sc->sc_rx_process_limit, 0, + "max number of RX packets to process per interrupt"); + /* Stats */ rge_sysctl_drv_stats_attach(sc); rge_sysctl_mac_stats_attach(sc); diff --git a/sys/dev/rge/if_rgevar.h b/sys/dev/rge/if_rgevar.h index d516537e6524..89d02e8acb72 100644 --- a/sys/dev/rge/if_rgevar.h +++ b/sys/dev/rge/if_rgevar.h @@ -204,6 +204,8 @@ struct rge_softc { uint32_t sc_debug; + int sc_rx_process_limit; + struct rge_drv_stats sc_drv_stats; struct rge_mac_stats sc_mac_stats;