Re: [PATCH RFC] iw_cxgb3: Support "iwarp-only" interfaces to avoid 4-tuple conflicts with the host stack.

From: Roland Dreier
Date: Wed Sep 05 2007 - 11:18:31 EST


> > What's wrong with my suggestion of having the iwarp driver create an
> > "iwX" interface to go with the normal "ethX" interface? It seems
> > simpler to me, and there's a somewhat similar precedent with how
> > mac80211 devices create both wlan0 and wmaster0 interfaces.
> > - R.
>
> It seemed much more painful for me to implement. :-)
>
> I'll look into this, but I think for this to be done, the changes must
> be in the cxgb3 driver, not the rdma driver, because the guts of the
> netdev struct are all private to cxgb3. Remember that this interface
> needs to still do non TCP traffic (like ARP and UDP)...
>
> Maybe you have something in mind here that I'm not thinking about?

No, I was just spouting off.

But the whole "create a magic alias" seems kind of unfriendly to the
user. Maybe as you said, the cxgb3 net driver could create the alias
for the iw_cxgb3 driver?

- R.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/