TSP on em makes send of streams very slow

[Kip Macy]

On 9/22/07, Jack Vogel <jfvogel at gmail.com> wrote:
> On 9/22/07, Artem Kuchin <matrix at itlegion.ru> wrote:
> > > TSO is for some environments, it isn't gonna be useful at 100Mb
> > > (which you are), it can be useful at 1Gb but not always, when you get
> > > to 10G its
> > > a HUGE benefit.
> > >
> > > Just cuz you can shoot yourself in the foot doesn't mean the gun has a
> > > problem :)
> >
> > But wait, i did not shoot myself. I have been shot by the driver w/o any
> > preliminary warning. TSO4 was enabled by DEFAULT (i did not enable it),
> > so anybody can be in my place if used the same driver on the similar hardware
> > (which is plenty).
> >
> > So, i think this is a problem which really need to be addressed.
>
> It is on by default because it the majority of cases its a benefit, you
> found it to be a problem and turned it off, your problem is solved.
>
> I admit, at one point I considered disabling it automatically for anything
> under Gig speed, but a large community has used this driver with this
> feature for over a year, no one has lobbied to have to disabled, so I
> have not.
>
> If there are others who think this would be a good idea, speak up, and
> I will do so.

I don't think many people will be hooking it up to 100Mbit. However,
disabling TSO if media negotiates 100Mbit seems like an easy enough
fix.

 -Kip