| 9c132373 | 08-Apr-2024 |
Maryam Tahhan <mtahhan@redhat.com> |
net/af_xdp: fix multi-interface support for k8s
The original 'use_cni' implementation, was added
to enable support for the AF_XDP PMD in a K8s env
without any escalated privileges.
However 'use_cni'
net/af_xdp: fix multi-interface support for k8s
The original 'use_cni' implementation, was added
to enable support for the AF_XDP PMD in a K8s env
without any escalated privileges.
However 'use_cni' used a hardcoded socket rather
than a configurable one. If a DPDK pod is requesting
multiple net devices and these devices are from
different pools, then the AF_XDP PMD attempts to
mount all the netdev UDSes in the pod as /tmp/afxdp.sock.
Which means that at best only 1 netdev will handshake
correctly with the AF_XDP DP. This patch addresses
this by making the socket parameter configurable using
a new vdev param called 'dp_path' alongside the
original 'use_cni' param. If the 'dp_path' parameter
is not set alongside the 'use_cni' parameter, then
it's configured inside the AF_XDP PMD (transparently
to the user). This change has been tested
with the AF_XDP DP PR 81[1], with both single and
multiple interfaces.
[1] https://github.com/intel/afxdp-plugins-for-kubernetes/pull/81
Fixes: 7fc6ae50369d ("net/af_xdp: support CNI Integration")
Cc: stable@dpdk.org
Signed-off-by: Maryam Tahhan <mtahhan@redhat.com>
Acked-by: Ciara Loftus <ciara.loftus@intel.com>
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| 99c58d23 | 10-Jun-2022 |
Bruce Richardson <bruce.richardson@intel.com> |
doc: add code example for virtio-user exception path
The HOWTO guide for using virtio-user as an exception path to the kernel
only provided an example of how testpmd may be used for that purpose.
Ho
doc: add code example for virtio-user exception path
The HOWTO guide for using virtio-user as an exception path to the kernel
only provided an example of how testpmd may be used for that purpose.
However, a real application wanting to use virtio-user as exception path
would likely want to create such devices from code within the app
itself. Therefore, we update the doc with instructions and a code
snippet showing how this may be done.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
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