This patch adds the following limitations to the mlx5 PMD guide: - With HW Steering and E-Switch enabled, transfer proxy port must be started before any port representor. - With HW Steering and E-Switch enabled, all representors must be stopped before transfer proxy port is stopped.
Signed-off-by: Dariusz Sosnowski <dsosnow...@nvidia.com> --- doc/guides/nics/mlx5.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index d5f9375a4e..ca555e7ca7 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -161,6 +161,19 @@ Limitations - NIC ConnectX-5 and before are not supported. - Partial match with item template is not supported. - IPv6 5-tuple matching is not supported. + - With E-Switch enabled, ports which share the E-Switch domain + should be started and stopped in a specific order: + + - When starting ports, the transfer proxy port should be started first + and port representors should follow. + - When stopping ports, all of the port representors + should be stopped before stopping the transfer proxy port. + + If ports are started/stopped in an incorrect order, + ``rte_eth_dev_start()``/``rte_eth_dev_stop()`` will return an appropriate error code: + + - ``-EAGAIN`` for ``rte_eth_dev_start()``. + - ``-EBUSY`` for ``rte_eth_dev_stop()``. - When using Verbs flow engine (``dv_flow_en`` = 0), flow pattern without any specific VLAN will match for VLAN packets as well: -- 2.25.1
