From owner-svn-src-stable-9@FreeBSD.ORG Tue Apr 24 03:27:28 2012 Return-Path: Delivered-To: svn-src-stable-9@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 90D23106566B; Tue, 24 Apr 2012 03:27:28 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 7B9B68FC16; Tue, 24 Apr 2012 03:27:28 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q3O3RSoU028137; Tue, 24 Apr 2012 03:27:28 GMT (envelope-from bjk@svn.freebsd.org) Received: (from bjk@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id q3O3RSZi028135; Tue, 24 Apr 2012 03:27:28 GMT (envelope-from bjk@svn.freebsd.org) Message-Id: <201204240327.q3O3RSZi028135@svn.freebsd.org> From: Benjamin Kaduk Date: Tue, 24 Apr 2012 03:27:28 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r234628 - stable/9/lib/libc/sys X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Apr 2012 03:27:28 -0000 Author: bjk (doc committer) Date: Tue Apr 24 03:27:27 2012 New Revision: 234628 URL: http://svn.freebsd.org/changeset/base/234628 Log: MFC r233160: Expound a bit more about the system maximum number of FIBs, how it may be set, and current limitations on the value. PR: docs/157453 Approved by: hrs (mentor) Modified: stable/9/lib/libc/sys/setfib.2 Directory Properties: stable/9/lib/libc/ (props changed) stable/9/lib/libc/sys/ (props changed) Modified: stable/9/lib/libc/sys/setfib.2 ============================================================================== --- stable/9/lib/libc/sys/setfib.2 Tue Apr 24 01:12:43 2012 (r234627) +++ stable/9/lib/libc/sys/setfib.2 Tue Apr 24 03:27:27 2012 (r234628) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd August 8, 2008 +.Dd March 19, 2012 .Dt SETFIB 2 .Os .Sh NAME @@ -45,10 +45,28 @@ subsequent to the call, to be that of th The .Fa fib argument -may be between 0 and the current system maximum which +must be greater than or equal to 0 +and less than the current system maximum which may be retrieved by the .Va net.fibs sysctl. +The system maximum is set in the kernel configuration file with +.Pp +.Dl options ROUTETABLES= Ns Em N +.Pp +or in +.Pa /boot/loader.conf +with +.Pp +.Dl net.fibs= Ns Qq Em N +.Pp +where +.Em N +is an integer. +However, this maximum is capped at 16 due to the implementation storing +the fib number in a 4-bit field in +.Xr mbuf 9 +flags. The default fib of the process will be applied to all protocol families that support multiple fibs, and ignored by those that do not. The default fib for a process may be overridden for a socket with the use