[Intel-wired-lan] [PATCH net-next] i40e: limit lan queue count in large cpu count machine

Bowers, AndrewX andrewx.bowers at intel.com
Wed Aug 9 17:46:01 UTC 2017


> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Shannon Nelson
> Sent: Monday, July 24, 2017 6:18 PM
> To: davem at davemloft.net; netdev at vger.kernel.org
> Cc: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH net-next] i40e: limit lan queue count in
> large cpu count machine
> 
> When a machine has more cpus than queuepairs, e.g. 512 cores, the counting
> gets a little funky and turns off Flow Director with the
> message:
>   not enough queues for Flow Director. Flow Director feature is disabled
> 
> This patch limits the number of lan queues initially allocated to be sure we
> have some left for FD and other features.
> 
> Signed-off-by: Shannon Nelson <shannon.nelson at oracle.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c |   11 +++++++----
>  1 files changed, 7 insertions(+), 4 deletions(-)

Tested-by: Andrew Bowers <andrewx.bowers at intel.com>


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