Intel 82574L interface wedging on em 7.1.9/7.2.3 when MSIX enabled

[Ryan Stone]

On Sun, Oct 30, 2011 at 4:57 AM, Hooman Fazaeli <hoomanfazaeli at gmail.com> wrote:
> IMHO, this is not a driver issue and the real fix would be to change
> IFQ_HANDOFF to call if_start when the queue is full.

I'm not sure that's the right approach.  99% of the time, calling
if_start when the queue is full will be a waste of time. It seems to
me that the link interrupt handler needs to kick off the tx task to
drain the tx queue instead.