Re: [dpdk-dev] [PATCH v2 2/3] net/af_xdp: support pinning of IRQs

[Ye Xiaolong <xiaolong.ye@intel.com>]

On 09/30, Ciara Loftus wrote:
>Network devices using the AF_XDP PMD will trigger interrupts
>on reception of packets. The new PMD argument 'queue_irq'
>allows the user to specify a core on which to pin interrupts
>for a given queue. Multiple queue_irq arguments can be specified.
>For example:
>
>  --vdev=net_af_xdp1,iface=eth0,queue_count=2,
>           queue_irq=0:2,queue_irq=1:5
>
>..will pin queue 0 interrupts to core 2 and queue 1 interrupts
>to core 5.
>
>The queue argument refers to the ethdev queue as opposed to the
>netdev queue. These values are the same unless a value greater
>than 0 is specified in a start_queue argument.
>
>The drivers supported for this feature are those with support for
>AF_XDP zero copy in the kernel, namely ixgbe, i40e and mlx5_core.
>
>Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
>Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
>---
> doc/guides/nics/af_xdp.rst             |  15 +
> doc/guides/rel_notes/release_19_11.rst |   7 +
> drivers/net/af_xdp/rte_eth_af_xdp.c    | 366 ++++++++++++++++++++++++-
> 3 files changed, 383 insertions(+), 5 deletions(-)
>

Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>