Date: Tue, 1 Mar 2011 00:11:44 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r219118 - stable/8/share/man/man4 Message-ID: <201103010011.p210Bi0C063666@svn.freebsd.org>
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Author: yongari Date: Tue Mar 1 00:11:44 2011 New Revision: 219118 URL: http://svn.freebsd.org/changeset/base/219118 Log: MFC r217914: Document newly added tunables. hw.re.intr_filter hw.re.msix_disable dev.re.%d.int_rx_mod Modified: stable/8/share/man/man4/re.4 Directory Properties: stable/8/share/man/man4/ (props changed) Modified: stable/8/share/man/man4/re.4 ============================================================================== --- stable/8/share/man/man4/re.4 Tue Mar 1 00:08:49 2011 (r219117) +++ stable/8/share/man/man4/re.4 Tue Mar 1 00:11:44 2011 (r219118) @@ -30,7 +30,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 15, 2011 +.Dd January 26, 2011 .Dt RE 4 .Os .Sh NAME @@ -175,15 +175,39 @@ Tunables can be set at the prompt before booting the kernel or stored in .Xr loader.conf 5 . .Bl -tag -width "xxxxxx" +.It Va hw.re.intr_filter +This tunable makes driver use interrupt filter handler on +controllers that support MSI/MSI-X capability. +If MSI/MSI-X is disabled by administrator this tunable has no +effect and driver will use interrupt filter handler. +The default value is 0 to use interrupt thread handler. .It Va hw.re.msi_disable This tunable disables MSI support on the Ethernet hardware. The default value is 0. +.It Va hw.re.msix_disable +This tunable disables MSI-X support on the Ethernet hardware. +The default value is 0. .It Va hw.re.prefer_iomap This tunable controls which register mapping should be used on the specified device. A non-zero value enables I/O space register mapping. The default value is 0 to use memory space register mapping. .El +.Sh SYSCTL VARIABLES +The following variables are available as both +.Xr sysctl 8 +variables and +.Xr loader 8 +tunables: +.Bl -tag -width "xxxxxx" +.It Va dev.re.%d.int_rx_mod +Maximum amount of time to delay receive interrupt processing in +units of 1us. +The accepted range is 0 to 65, the default is 65(65us). +Value 0 completely disables the interrupt moderation. +The interface need to be brought down and up again before a change +takes effect. +.El .Sh DIAGNOSTICS .Bl -diag .It "re%d: couldn't map memory"
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