svn commit: r280503 - stable/10/share/man/man4
Andrew Rybchenko
arybchik at FreeBSD.org
Wed Mar 25 10:02:16 UTC 2015
Author: arybchik
Date: Wed Mar 25 10:02:14 2015
New Revision: 280503
URL: https://svnweb.freebsd.org/changeset/base/280503
Log:
MFC: 272329
Update SolarFlare driver manual page with new tunables.
Submitted by: Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Modified:
stable/10/share/man/man4/sfxge.4
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/share/man/man4/sfxge.4
==============================================================================
--- stable/10/share/man/man4/sfxge.4 Wed Mar 25 10:01:07 2015 (r280502)
+++ stable/10/share/man/man4/sfxge.4 Wed Mar 25 10:02:14 2015 (r280503)
@@ -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:
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