Date: Sun, 05 Dec 2004 20:22:54 -0800 From: Nate Lawson <nate@root.org> To: Alan Cox <alc@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf files src/sys/kern kern_subr.c uipc_jumbo.c src/sys/pci if_ti.c src/sys/sys jumbo.h Message-ID: <41B3DE9E.3080307@root.org> In-Reply-To: <20041206004349.8F02916A581@hub.freebsd.org> References: <20041206004349.8F02916A581@hub.freebsd.org>
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Alan Cox wrote: > alc 2004-12-06 00:43:40 UTC > > FreeBSD src repository > > Modified files: > sys/conf files > sys/kern kern_subr.c > sys/pci if_ti.c > Removed files: > sys/kern uipc_jumbo.c > sys/sys jumbo.h > Log: > Update the Tigon 1 and 2 driver to use the sf_buf API for implementing > zero-copy receive of jumbo frames. This eliminates the need for the > jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. > Remove it. > > Note: Zero-copy receive of jumbo frames did not work without these changes; > I believe there was insufficient locking on the jumbo vm object. > > Tested by: ken@ > Discussed with: gallatin@ > > Revision Changes Path > 1.973 +0 -1 src/sys/conf/files > 1.93 +4 -6 src/sys/kern/kern_subr.c > 1.12 +0 -254 src/sys/kern/uipc_jumbo.c (dead) > 1.98 +23 -15 src/sys/pci/if_ti.c > 1.6 +0 -59 src/sys/sys/jumbo.h (dead) Excellent, thanks for doing this. Having a generic zero-copy API was something we had needed for a long time. Perhaps cam_periph_mapmem() (sys/cam/cam_periph.c) could also benefit? -Nate
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