[v1] net/af_xdp: enable a sock path alongside use_cni

[David Marchand]

Hello,

On Thu, Nov 30, 2023 at 10:13 AM Maryam Tahhan <mtahhan at redhat.com> wrote:
[snip]
> diff --git a/doc/guides/howto/af_xdp_cni.rst b/doc/guides/howto/af_xdp_cni.rst
> index a1a6d5b99c..a2d90c665d 100644
> --- a/doc/guides/howto/af_xdp_cni.rst
> +++ b/doc/guides/howto/af_xdp_cni.rst
> @@ -38,9 +38,10 @@ The XSKMAP is a BPF map of AF_XDP sockets (XSK).
>  The client can then proceed with creating an AF_XDP socket
>  and inserting that socket into the XSKMAP pointed to by the descriptor.
>
> -The EAL vdev argument ``use_cni`` is used to indicate that the user wishes
> +The EAL vdev arguments ``use_cni`` and ``sock`` are used to indicate that the user wishes
>  to run the PMD in unprivileged mode and to receive the XSKMAP file descriptor
>  from the CNI.
> +
>  When this flag is set,
>  the ``XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD`` libbpf flag
>  should be used when creating the socket
> @@ -49,7 +50,7 @@ Instead the loading is handled by the CNI.
>
>  .. note::
>
> -   The Unix Domain Socket file path appear in the end user is "/tmp/afxdp.sock".
> +   The Unix Domain Socket file path appears to the end user at "/tmp/afxdp_dp/<netdev>/afxdp.sock".
>
>
>  Prerequisites
> @@ -224,7 +225,6 @@ Howto run dpdk-testpmd with CNI plugin:
>            capabilities:
>               add:
>                 - CAP_NET_RAW
> -               - CAP_BPF
>           resources:
>             requests:
>               hugepages-2Mi: 2Gi
> @@ -245,7 +245,17 @@ Howto run dpdk-testpmd with CNI plugin:
>
>       kubectl exec -i <Pod name> --container <containers name> -- \
>             /<Path>/dpdk-testpmd -l 0,1 --no-pci \
> -           --vdev=net_af_xdp0,use_cni=1,iface=<interface name> \
> +           --vdev=net_af_xdp0,use_cni=1,iface=<interface name>,sock=/tmp/afxdp_dp/<interface name>/afxdp.sock \
> +           -- --no-mlockall --in-memory

Quick look at the doc update.
- is this hunk related to $subject?
- --in-memory is not a testpmd level option, but an EAL one.


-- 
David Marchand