From owner-svn-src-head@FreeBSD.ORG Tue Sep 30 20:38:37 2014 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4AD81BC1; Tue, 30 Sep 2014 20:38:37 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 370F8A67; Tue, 30 Sep 2014 20:38:37 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id s8UKcbY0003654; Tue, 30 Sep 2014 20:38:37 GMT (envelope-from gnn@FreeBSD.org) Received: (from gnn@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id s8UKcbTn003653; Tue, 30 Sep 2014 20:38:37 GMT (envelope-from gnn@FreeBSD.org) Message-Id: <201409302038.s8UKcbTn003653@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: gnn set sender to gnn@FreeBSD.org using -f From: "George V. Neville-Neil" Date: Tue, 30 Sep 2014 20:38:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r272329 - head/share/man/man4 X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Sep 2014 20:38:37 -0000 Author: gnn Date: Tue Sep 30 20:38:36 2014 New Revision: 272329 URL: http://svnweb.freebsd.org/changeset/base/272329 Log: Update SolarFlare driver manual page with new tunables. Submitted by: Andrew Rybchenko Sponsored by: Solarflare Communications, Inc. Modified: head/share/man/man4/sfxge.4 Modified: head/share/man/man4/sfxge.4 ============================================================================== --- head/share/man/man4/sfxge.4 Tue Sep 30 20:36:07 2014 (r272328) +++ head/share/man/man4/sfxge.4 Tue Sep 30 20:38:36 2014 (r272329) @@ -76,6 +76,32 @@ The .Nm driver supports all 10Gb Ethernet adapters based on Solarflare SFC9000 family controllers. +.Sh LOADER TUNABLES +Tunables can be set at the +.Xr loader 8 +prompt before booting the kernel or stored in +.Xr loader.conf 5 . +Actual values can be obtained using +.Xr sysctl 8 . +.Bl -tag -width indent +.It Va hw.sfxge.rx_ring +Maximum number of descriptors in a receive queue ring. +Supported values are: 512, 1024, 2048 and 4096. +.It Va hw.sfxge.tx_ring +Maximum number of descriptors in a transmit queue ring. +Supported values are: 512, 1024, 2048 and 4096. +.It Va hw.sfxge.tx_dpl_get_max +The maximum length of the deferred packet 'get-list' for queued transmit +packets, used only if the transmit queue lock can be acquired. +If packet is dropped, \fItx_early_drops\fR counter grows and local sender +gets ENOBUFS error. +Value must be greater than 0. +.It Va hw.sfxge.tx_dpl_put_max +The maximum length of the deferred packet 'put-list' for queued transmit +packets, used if the transmit queue lock cannot be acquired. +If packet is dropped, \fItx_early_drops\fR counter grows and local sender +gets ENOBUFS error. +Value must be greater or equal to 0. .Sh SUPPORT For general information and support, go to the Solarflare support website at: