Date: Wed, 8 May 2013 15:55:29 +0000 (UTC) From: Sean Bruno <sbruno@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r250370 - in stable/9: share/man/man4 sys/dev/e1000 Message-ID: <201305081555.r48FtTAG073742@svn.freebsd.org>
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Author: sbruno Date: Wed May 8 15:55:29 2013 New Revision: 250370 URL: http://svnweb.freebsd.org/changeset/base/250370 Log: MFC r249070 Update man page for igb(4) with a little bit of information about hw.igb.num_queues for those so inclined. Modified: stable/9/share/man/man4/igb.4 stable/9/sys/dev/e1000/if_igb.c Directory Properties: stable/9/share/man/man4/ (props changed) stable/9/sys/ (props changed) stable/9/sys/dev/ (props changed) stable/9/sys/dev/e1000/ (props changed) Modified: stable/9/share/man/man4/igb.4 ============================================================================== --- stable/9/share/man/man4/igb.4 Wed May 8 15:50:24 2013 (r250369) +++ stable/9/share/man/man4/igb.4 Wed May 8 15:55:29 2013 (r250370) @@ -31,7 +31,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 12, 2012 +.Dd March 25, 2013 .Dt IGB 4 .Os .Sh NAME @@ -160,6 +160,11 @@ The minimum is 80, and the maximum is 40 .It Va hw.igb.enable_aim If set to 1, enable Adaptive Interrupt Moderation. The default is to enable Adaptive Interrupt Moderation. +.It Va hw.igb.num_queues +Numer of queues used for data transfer. +If set to 0, number of queues will be configured +automatically based on number of CPUs and max +supported MSI-X messages on the device. .It Va kern.ipc.nmbclusters The maximum number of mbuf clusters allowed. If the system has more than one igb card or jumbo frames are Modified: stable/9/sys/dev/e1000/if_igb.c ============================================================================== --- stable/9/sys/dev/e1000/if_igb.c Wed May 8 15:50:24 2013 (r250369) +++ stable/9/sys/dev/e1000/if_igb.c Wed May 8 15:55:29 2013 (r250370) @@ -375,7 +375,8 @@ SYSCTL_INT(_hw_igb, OID_AUTO, header_spl /* ** This will autoconfigure based on -** the number of CPUs if left at 0. +** the number of CPUs and max supported MSI-X messages +** if left at 0. */ static int igb_num_queues = 0; TUNABLE_INT("hw.igb.num_queues", &igb_num_queues);
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