On 10/13/2020 2:10 PM, Ciara Loftus wrote:
AF_XDP PMDs who wish to share a UMEM must have a unique context
(ctx) ie. netdev,qid tuple. For instance, the following will not
work since both PMDs' contexts are identical.
--vdev net_af_xdp0,iface=ens786f1,start_queue=0,shared_umem=1
--vdev net_af_xdp1,iface=ens786f1,start_queue=0,shared_umem=1
Supporting this scenario would require locks, which would impact
the performance of the more typical cases - xsks with different
netdev,qid tuples.
> Fixes: 74b46340e2d4 ("net/af_xdp: support shared UMEM")
>
Signed-off-by: Ciara Loftus <ciara.lof...@intel.com>
>
Applied to dpdk-next-net/main, thanks.
