David Miller a écrit :

From: John Fastabend <redacted>
Date: Tue, 24 Nov 2009 13:14:12 +0000

quoted

Believe the below patch will break DCB and FCoE though, both features
have the potential to set real_num_tx_queues to greater then the
number of CPUs.  This could result in real_num_tx_queues >
num_tx_queues.

The current solution isn't that great though, maybe we should set to
the minimum of MAX_TX_QUEUES and num_possible_cpus() * 2 + 8.

That should cover the maximum possible queues for DCB, FCoE and their
combinations.

general multiq = num_possible_cpus()
DCB = 8 tx queue's
FCoE = 2*num_possible_cpus()
FCoE + DCB = 8 tx queues + num_possible_cpus

Eric, I'm tossing your patch because of this problem, just FYI.

Sure, I guess we need a more generic way to handle this.