Date: Tue, 12 Jun 2007 06:05:21 -0400 From: Andrew Gallatin <gallatin@cs.duke.edu> To: Pyun YongHyeon <yongari@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/nfe if_nfe.c if_nfereg.h Message-ID: <20070612060521.D84335@grasshopper.cs.duke.edu> In-Reply-To: <200706120235.l5C2Z1iJ022543@repoman.freebsd.org>; from yongari@FreeBSD.org on Tue, Jun 12, 2007 at 02:34:38AM %2B0000 References: <200706120235.l5C2Z1iJ022543@repoman.freebsd.org>
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Pyun YongHyeon [yongari@FreeBSD.org] 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? Drew
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