Re: zero-copy TCP

From: Richard Gooch (
Date: Mon Sep 04 2000 - 10:33:46 EST

Jes Sorensen writes:
> >>>>> "Richard" == Richard Gooch <> writes:
> Richard> Andrew Morton writes:
> >> All of them except the 3c905 provide hardware Rx and Tx
> >> checksumming of IP, TCP and UDP headers. No 64 bit addressing
> >> support.
> Richard> And does the driver support it? Has anyone benchmarked the
> Richard> performance difference (if any)?
> There isn't much gain from using it when we can't do zero copy xmits
> in the first place. It might be worth enabling for receive though.

I thought you said some of the GigE drivers supported this? Or were
you just saying that the GigE cards were some of the few which
supported scatter/gather DMA and IP checksumming?


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

This archive was generated by hypermail 2b29 : Thu Sep 07 2000 - 21:00:18 EST