[lkml]   [2001]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Updated zerocopy patch up on

On Tue, 9 Jan 2001, David S. Miller wrote:

> Is there any value to supporting fragments in a driver which
> doesn't do hardware checksumming? IIRC Alexey had a patch to do
> such for Tulip, but I don't see it in the above patchset.
> I'm actually considering making the SG w/o hwcsum situation illegal.

i believe it might still make some limited sense for normal sendmsg()
and higher MTUs (or 8k NFS) - we could copy & checksum stuff into the
->tcp_page if SG is possible and thus the SG capability improves the VM.
(because we can allocate at PAGE_SIZE granularity.)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:28    [W:0.088 / U:0.936 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site