From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [net-next 10/12] bna: TX Queue Depth Fix
Date: Wed, 31 Aug 2011 06:46:00 +0200
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Cc: Rasesh Mody <rmody@brocade.com>, davem@davemloft.net,
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To: Dave Taht <dave.taht@gmail.com>
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Le mardi 30 ao=C3=BBt 2011 =C3=A0 21:34 -0700, Dave Taht a =C3=A9crit :
> On Tue, Aug 30, 2011 at 9:24 PM, Eric Dumazet <eric.dumazet@gmail.com=
> wrote:

> > BNAD_MAX_Q_DEPTH is now defined but not used.
> >
> > BTW, 32768 slots in a RX queue is insane.
>=20
> As that is many lunar distances worth of buffering... Are they
> expecting transmissions from mars?
>=20

At 10GB rate, this can be filled in ~2msec with small frames.

Apparently some people business depend on not losing frames.

But they should be warned of extra memory needs, and latency increases
(because of a larger working set)