numam-dpdk/doc/guides/vdpadevs
Matan Azrad 99f9d799ce vdpa/mlx5: improve interrupt management
The driver should notify the guest for each traffic burst detected by CQ
polling.

The CQ polling trigger is defined by `event_mode` device argument,
either by busy polling on all the CQs or by blocked call to HW
completion event using DevX channel.

Also, the polling event modes can move to blocked call when the
traffic rate is low.

The current blocked call uses the EAL interrupt API suffering a lot
of overhead in the API management and serve all the drivers and
libraries using only single thread.

Use blocking FD of the DevX channel in order to do blocked call
directly by the DevX channel FD mechanism.

Signed-off-by: Matan Azrad <matan@nvidia.com>
Acked-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-05-04 10:22:17 +02:00
..
features doc: simplify OS support in features matrix 2021-01-21 14:53:16 +01:00
features_overview.rst doc: simplify OS support in features matrix 2021-01-21 14:53:16 +01:00
ifc.rst doc: remove references to make from vdpadevs guide 2020-10-22 22:54:05 +02:00
index.rst vdpa/mlx5: introduce Mellanox vDPA driver 2020-02-05 09:51:21 +01:00
mlx5.rst vdpa/mlx5: improve interrupt management 2021-05-04 10:22:17 +02:00