On Tue, Jun 12, 2007 at 07:38:20PM +0900, To Andrew Gallatin wrote: > On Tue, Jun 12, 2007 at 06:05:21AM -0400, Andrew Gallatin wrote: > > Pyun YongHyeon [EMAIL PROTECTED] wrote: > > > yongari 2007-06-12 02:35:01 UTC > > > > > > FreeBSD src repository > > > > > > Modified files: > > > sys/dev/nfe if_nfe.c if_nfereg.h > > > Log: > > > Increase a maximum segment size of DMA to 4096. Previously it used > > > MCLBYTES for the segment size but it used too many Tx descriptors in > > > TSO case. > > > While I'm here adjust maximum size of the sum of all segment lengths > > > in a given DMA mapping to 65535, the maximum size, in bytes, of a IP > > > > Can't it actually be 65535 + link layer headers? Eg, up to > > 65535 + 14 or 65535 + 18? > > > > Oops, you're right. It should be 65535 + sizeof(struct ether_vlan_header). > Thanks for pointing out! :) >
I've checked TSO enabled drivers in tree. It seems that the following drivers also have the same bug. CCed to maintainers. bce(4), cxgb(4) and em(4). -- Regards, Pyun YongHyeon _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
