Re: Call for testers: Atheros AR8121(L1E)/AR8113/AR8114(L2E) ethernet

On Thu, Dec 11, 2008 at 10:51:23PM -0500, Josh Carroll wrote:
 > > I guess it's caused by flow-control frames.
 > > The flow-control feature is disabled in most drivers as mii(4)
 > > layer still lacks the feture. ale(4) has flow-control support code
 > > but it is in disabled state. When mii(4) is ready to handle
 > > flow-controls ale(4) may work better.
 > > em(4) does not rely on mii(4) layer so it implemented flow-controls
 > > in driver. You can check flow-control satus of em(4) with
 > > "sysctl dev.em.0.stats=1"(See XON/XOFF).
 > 
 > Hmm, any idea why my previous motherboard (P5K-E) which had an msk(4)
 > worked ok without the stuttering for this streaming? I believe it
 > relies on mii as well, right?
 > 

Yes, but msk(4) had hacks in e100phy(4) to enable flow-controls.
I don't want to add these hacks to all other drivers in tree.

 > Thanks, I guess I'll stick with the em(4) PCI card, at least until I
 > can get a PCI-E em(4). :)
 > 
 > Josh

-- 
Regards,
Pyun YongHyeon