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Re: in-driver QoS

To: Vladimir Kondratiev <vkondra@xxxxxxx>
Subject: Re: in-driver QoS
From: jamal <hadi@xxxxxxxxxx>
Date: 07 Jun 2004 19:38:44 -0400
Cc: netdev@xxxxxxxxxxx, Andi Kleen <ak@xxxxxxx>
In-reply-to: <200406072335.04125.vkondra@mail.ru>
Organization: jamalopolis
References: <200406062128.47070.vkondra@mail.ru> <20040607140011.GC28639@wotan.suse.de> <200406072335.04125.vkondra@mail.ru>
Reply-to: hadi@xxxxxxxxxx
Sender: netdev-bounce@xxxxxxxxxxx
On Mon, 2004-06-07 at 16:35, Vladimir Kondratiev wrote:
> How could I use these multiple qdiscs? If I use existing driver framework, I 
> have hard_start_xmit, that represent single queue. Do you have any examples 
> how driver can access qdiscs directly? I.e. I have 4 queues in the driver, I 
> want to fill it separately, start/stop incoming queues from stack etc.

Maybe you can explain a little more: Do these 4 queues translate to 4
DMA rings or channles on the NIC? Could you not use a tag like fwmark to
select DMA to send to? 
Explain the packet path once it hits the driver.

> Note also, we are talking about 100Mbps above MAC, which translates to about 
> 150 Mbps, within next 2 years. 100Mbps above MAC is criteria for TGn working 
> group in IEEE (high throughput).

Are these wireless NICs? Whats the big deal about 150Mbps?

cheers,
jamal


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