vdpa/mlx5: Distribute RX virtqueues in RQT object

Browse source

Distribute the available rx virtqueues amongst the available RQT
entries.

RQTs require to have a power of two entries. When creating or modifying
the RQT, use the lowest number of power of two entries that is not less
than the number of rx virtqueues. Distribute them in the available
entries such that some virtqueus may be referenced twice.

This allows to configure any number of virtqueue pairs when multiqueue
is used.

Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220105114646.577224-3-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

...

This commit is contained in:

Eli Cohen 2022-01-05 13:46:34 +02:00 • committed by Michael S. Tsirkin

parent a64917bc2e

commit a7f46ba424

1 changed files with 7 additions and 23 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

30

drivers/vdpa/mlx5/net/mlx5_vnet.c

View file