Commit e6fa6052 authored by Stefano Garzarella's avatar Stefano Garzarella Committed by Michael S. Tsirkin
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vdpa_sim_blk: handle VIRTIO_BLK_T_GET_ID 



Handle VIRTIO_BLK_T_GET_ID request, always answering the
"vdpa_blk_sim" string.

Acked-by: default avatarJason Wang <jasowang@redhat.com>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210315163450.254396-14-sgarzare@redhat.com


Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 7d189f61

drivers/vdpa/vdpa_sim/vdpa_sim_blk.c

+15 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ 
#define VDPASIM_BLK_VQ_NUM	1



static struct vdpasim *vdpasim_blk_dev;

static char vdpasim_blk_id[VIRTIO_BLK_ID_BYTES] = "vdpa_blk_sim";



static bool vdpasim_blk_check_range(u64 start_sector, size_t range_size)

{
@@ -153,6 +154,20 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim, 
		}

		break;



	case VIRTIO_BLK_T_GET_ID:

		bytes = vringh_iov_push_iotlb(&vq->vring, &vq->in_iov,

					      vdpasim_blk_id,

					      VIRTIO_BLK_ID_BYTES);

		if (bytes < 0) {

			dev_err(&vdpasim->vdpa.dev,

				"vringh_iov_push_iotlb() error: %zd\n", bytes);

			status = VIRTIO_BLK_S_IOERR;

			break;

		}



		pushed += bytes;

		break;



	default:

		dev_warn(&vdpasim->vdpa.dev,

			 "Unsupported request type %d\n", type);