Hi,
Do you mean that devices will not be able to indicate support of SG seperately
from hw checksum or that the IP zerocopy will simply ignore devices which
do not have both ?
DECnet assumes that the mac level checksum will detect all errors and does
not have a checksum of its own on data, so it would only need SG to benefit
from the zerocopy framework,
Steve.
>
>
> Ion Badulescu writes:
> > I'm just wondering, if a card supports sg but *not* TX csum, is it worth
> > it to make use of sg? eepro100 falls into this category..
>
> No, not worth it for now. In fact I'm going to mark that combination
> (sg without csum) as illegal in the final zerocopy patch I end up
> sending to Linus.
>
> Later,
> David S. Miller
> davem@redhat.com
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This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:23 EST