netdev
[Top] [All Lists]

Re: gigabit ethernet

To: Cheng Jin <chengjin@xxxxxxxxxxxxxx>
Subject: Re: gigabit ethernet
From: Nivedita Singhvi <niv@xxxxxxxxxx>
Date: Fri, 13 Feb 2004 13:31:54 -0800
Cc: satya srikanth <satyasrikanth2001@xxxxxxxxx>, "Xiaoliang (David) Wei" <weixl@xxxxxxxxxxx>, "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>
In-reply-to: <Pine.LNX.4.44.0402131116590.24993-100000@fast2.cs.caltech.edu>
References: <Pine.LNX.4.44.0402131116590.24993-100000@fast2.cs.caltech.edu>
Sender: netdev-bounce@xxxxxxxxxxx
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2.1) Gecko/20021130
Cheng Jin wrote:

I read somewhere that Intel SMP has cpu0 taking care of all the hardware interrupts, but I don't know about softirqs.
I think all softirqs related to the GbE are handled by the
same cpu.

For incoming network packets, the hw interrupt handler simply schedules a local softirq to handle the rest of the input processing. So the softirq will execute on the same CPU that the hw interrupt came in on.

thanks,
Nivedita





<Prev in Thread] Current Thread [Next in Thread>