On Thu, Jul 13, 2000 at 05:03:56PM -0600, Brian Hall wrote:
>
> On 13-Jul-2000 Andi Kleen wrote:
> > The 2.2 stack is under two independent locks (kernel lock and bh lock).
> > In later 2.2 the expensive parts of the TX path (copy
> > and checksum) run outside the kernel lock. About half of Incoming runs
> > in the serialized NETBH, but you can save a lot of that by using
> > a NIC that that supports hardware checksumming like the Tornado.
>
> Is this the 3Com 990 series? Is there Linux support for the hardware
> checksumming?
Tornado is 905B, but most or all 9xx support the hardware checksumming.
Donald Becker's 3c59x driver supports hardware checksumming on them fine
(3com's own linux driver doesn't BTW)
-Andi
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