Thread (153 messages) 153 messages, 21 authors, 2007-06-28

Re: [PATCH] NET: Multiqueue network device support.

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: 2007-06-08 12:38:07

On Fri, Jun 08, 2007 at 07:34:57AM -0400, jamal wrote:
On Fri, 2007-08-06 at 20:39 +1000, Herbert Xu wrote:
quoted
It would guard against the poll routine which would acquire this lock
when cleaning the TX ring.
Ok, then i suppose we can conclude it is a bug on e1000 (holds tx_lock
on tx side and adapter queue lock on rx). Adding that lock will
certainly bring down the performance numbers on a send/recv profile.
The bizare thing is things run just fine even under the heavy tx/rx
traffic i was testing under. I guess i didnt hit hard enough.
Hmm I wasn't describing how it works now.  I'm talking about how it
would work if we removed LLTX and replaced the private tx_lock with
netif_tx_lock.

Cheers,
-- 
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