netdev - why the number of queue of NIC impact the ping results?

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Date:	Wed, 26 May 2010 02:01:37 -0700
From:	Jon Zhou <Jon.Zhou@...u.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: why the number of queue of NIC  impact the ping results?

broadcom bnx2x netxtreme2-5.2.50,kernel 2.6.27-19

@receiver:

insmod ./bnx2x.ko  multi_mode=1 num_queues=12/14/16

@sender:
ping receiver ->response OK

but no response when

insmod ./bnx2x.ko  multi_mode=1 num_queues=2/4/8/10

have any idea?

thanks
jon

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