Subject: Re: [e1000 2.6 10/11] TxDescriptors -> 1024 default

From: "David S. Miller" <[email-masked]>
Date: Thu, 11 Sep 2003 14:07:46 -0700

On Thu, 11 Sep 2003 13:40:44 -0700
Ben Greear <[email-masked]> wrote:

> So, assume we configure a 10MB socket send queue on our UDP socket...
> 
> Select says its writable up to at least 5MB.
> 
> We write 5MB of 64byte packets "righ now".
> 
> Did we just drop a large number of packets?

Yes, we did _iff_ dev->tx_queue_len is less than or equal
to (5MB / (64 + sizeof(udp_id_headers))).