diff options
| author | Eric Farman <farman@linux.vnet.ibm.com> | 2017-05-10 17:53:53 +0200 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2017-05-19 12:29:01 +0200 |
| commit | 98d3c524359fda04337c8369b617f2d5ef37bf5f (patch) | |
| tree | 94c6f8d504eae16d01a2924c73d7b53060532558 /pc-bios/s390-ccw/virtio-scsi.c | |
| parent | 77c76392b0e3c613730ef5932348c3156c3de60f (diff) | |
pc-bios/s390-ccw: Move SCSI block factor to outer read
Simple refactoring so that the blk_factor adjustment is
moved into virtio_scsi_read_many routine, in preparation
for another change.
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Message-Id: <20170510155359.32727-3-farman@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'pc-bios/s390-ccw/virtio-scsi.c')
| -rw-r--r-- | pc-bios/s390-ccw/virtio-scsi.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/pc-bios/s390-ccw/virtio-scsi.c b/pc-bios/s390-ccw/virtio-scsi.c index 69b7a93b29..6d070e2f73 100644 --- a/pc-bios/s390-ccw/virtio-scsi.c +++ b/pc-bios/s390-ccw/virtio-scsi.c @@ -142,14 +142,13 @@ static bool scsi_report_luns(VDev *vdev, void *data, uint32_t data_size) } static bool scsi_read_10(VDev *vdev, - ulong sector, int sectors, void *data) + ulong sector, int sectors, void *data, + unsigned int data_size) { - int f = vdev->blk_factor; - unsigned int data_size = sectors * virtio_get_block_size() * f; ScsiCdbRead10 cdb = { .command = 0x28, - .lba = sector * f, - .xfer_length = sectors * f, + .lba = sector, + .xfer_length = sectors, }; VirtioCmd read_10[] = { { &req, sizeof(req), VRING_DESC_F_NEXT }, @@ -255,7 +254,10 @@ static void virtio_scsi_locate_device(VDev *vdev) int virtio_scsi_read_many(VDev *vdev, ulong sector, void *load_addr, int sec_num) { - if (!scsi_read_10(vdev, sector, sec_num, load_addr)) { + int f = vdev->blk_factor; + unsigned int data_size = sec_num * virtio_get_block_size() * f; + + if (!scsi_read_10(vdev, sector * f, sec_num * f, load_addr, data_size)) { virtio_scsi_verify_response(&resp, "virtio-scsi:read_many"); } |