vdpa: add new callback get_vq_num_min in vdpa_config_ops

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This callback is optional. For vdpa devices that not support to change
virtqueue size, get_vq_num_min and get_vq_num_max will return the same
value, so that users can choose a correct value for that device.

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/f4af5b0abd660d9a29ab6b2f67bd6df10284a230.1635493219.git.wuzongyong@linux.alibaba.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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Wu Zongyong 2021-10-29 17:14:45 +08:00 • committed by Michael S. Tsirkin

parent 5bbfea1eac

commit 3b970a5842

1 changed files with 4 additions and 0 deletions

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include/linux/vdpa.h

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