Date: Tue, 30 Sep 2014 20:38:37 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r272329 - head/share/man/man4 Message-ID: <201409302038.s8UKcbTn003653@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
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 <arybchenko at solarflare.com> 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:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201409302038.s8UKcbTn003653>