Commit 2e1a8b6c authored by Dariusz Stojaczyk's avatar Dariusz Stojaczyk Committed by Daniel Verkamp
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bdev_virtio: add SCSI READ/WRITE 16 support 



Change-Id: I458dc865744ed2dd7fcf8e838029add090ff85fa
Signed-off-by: default avatarDariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/377170


Tested-by: default avatarSPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-by: default avatarPawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
parent 43be836a

lib/bdev/virtio/bdev_virtio.c

+18 −6
Original line number Diff line number Diff line
@@ -137,16 +137,28 @@ bdev_virtio_rw(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io) 
	if (is_read) {

		vreq->iov = bdev_io->u.read.iovs;

		vreq->iovcnt = bdev_io->u.read.iovcnt;

		if (disk->num_blocks > (1ULL << 32)) {

			req->cdb[0] = SPDK_SBC_READ_16;

			to_be64(&req->cdb[2], bdev_io->u.read.offset_blocks);

			to_be32(&req->cdb[10], bdev_io->u.read.num_blocks);

		} else {

			req->cdb[0] = SPDK_SBC_READ_10;

			to_be32(&req->cdb[2], bdev_io->u.read.offset_blocks);

			to_be16(&req->cdb[7], bdev_io->u.read.num_blocks);

		}

	} else {

		vreq->iov = bdev_io->u.write.iovs;

		vreq->iovcnt = bdev_io->u.write.iovcnt;

		if (disk->num_blocks > (1ULL << 32)) {

			req->cdb[0] = SPDK_SBC_WRITE_16;

			to_be64(&req->cdb[2], bdev_io->u.write.offset_blocks);

			to_be32(&req->cdb[10], bdev_io->u.write.num_blocks);

		} else {

			req->cdb[0] = SPDK_SBC_WRITE_10;

			to_be32(&req->cdb[2], bdev_io->u.write.offset_blocks);

			to_be16(&req->cdb[7], bdev_io->u.write.num_blocks);

		}

	}



	virtio_xmit_pkts(disk->vdev->vqs[2], vreq);

}