Pyun YongHyeon wrote this message on Mon, Mar 31, 2014 at 01:54 +0000:
> Author: yongari
> Date: Mon Mar 31 01:54:59 2014
> New Revision: 263957
> URL: http://svnweb.freebsd.org/changeset/base/263957
>
> Log:
> Increase the number of TX DMA segments from 32 to 35. It turned
> out 32 is not enough to support a full sized TSO packet.
> While I'm here fix a long standing bug introduced in r169632 in
> bce(4) where it didn't include L2 header length of TSO packet in
> the maximum DMA segment size calculation.
I assume all of the hardware supports this increase?
Also, is there a reason to only increase up to 35 and not something
larger, like 64? Is there a memory or performance penalty?
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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