[Intel-wired-lan] [PATCH] ixgbe: take online CPU number as MQ max limit when alloc_etherdev_mq()

Jeff Kirsher jeffrey.t.kirsher at intel.com
Mon May 16 20:58:42 UTC 2016


On Fri, 2016-05-13 at 14:56 +0900, Ethan Zhao wrote:
> Allocating 64 Tx/Rx as default doesn't benefit perfomrnace when less
> CPUs were assigned. especially when DCB is enabled, so we should take
> num_online_cpus() as top limit, and aslo to make sure every TC has
> at least one queue, take the MAX_TRAFFIC_CLASS as bottom limit of queues
> number.
> 
> Signed-off-by: Ethan Zhao <ethan.zhao at oracle.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++++
>  1 file changed, 4 insertions(+)

Dropping this patch based on Alex's and John's feedback.
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