vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov

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vringh_getdesc_iotlb() manages 2 iovs for writable and readable
descriptors. This is very useful for the block device, where for
each request we have both types of descriptor.

Let's split the vdpasim_virtqueue's iov field in out_iov and
in_iov to use them with vringh_getdesc_iotlb().

We are using VIRTIO terminology for "out" (readable by the device)
and "in" (writable by the device) descriptors.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20201215144256.155342-18-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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Stefano Garzarella 2020-12-15 15:42:55 +01:00 • committed by Michael S. Tsirkin

parent da7af6967c

commit 275900dfa1

1 changed files with 6 additions and 5 deletions

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drivers/vdpa/vdpa_sim/vdpa_sim.c

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