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bdev_virtio: add SCSI READ/WRITE 16 support

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Change-Id: I458dc865744ed2dd7fcf8e838029add090ff85fa
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/377170
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2017-09-05 18:01:00 +02:00 committed by Daniel Verkamp
parent 43be836ae5
commit 2e1a8b6c2e
1 changed files with 18 additions and 6 deletions
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24
lib/bdev/virtio/bdev_virtio.c
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@ -137,15 +137,27 @@ 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;
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);
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;
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);
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);