[PULL 03/18] pc-bios/s390-ccw/virtio: Introduce a macro for the DASD block size

[Thomas Huth <thuth@redhat.com>]

Use VIRTIO_DASD_DEFAULT_BLOCK_SIZE instead of the magic value 4096.

Message-Id: <20220704111903.62400-3-thuth@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/virtio.h        | 1 +
 pc-bios/s390-ccw/virtio-blkdev.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
index 19fceb6495..9e410bde6f 100644
--- a/pc-bios/s390-ccw/virtio.h
+++ b/pc-bios/s390-ccw/virtio.h
@@ -198,6 +198,7 @@ extern int virtio_read_many(ulong sector, void *load_addr, int sec_num);
 #define VIRTIO_SECTOR_SIZE 512
 #define VIRTIO_ISO_BLOCK_SIZE 2048
 #define VIRTIO_SCSI_BLOCK_SIZE 512
+#define VIRTIO_DASD_DEFAULT_BLOCK_SIZE 4096
 
 static inline ulong virtio_sector_adjust(ulong sector)
 {
diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
index 7d35050292..6483307630 100644
--- a/pc-bios/s390-ccw/virtio-blkdev.c
+++ b/pc-bios/s390-ccw/virtio-blkdev.c
@@ -155,7 +155,7 @@ void virtio_assume_eckd(void)
     vdev->config.blk.physical_block_exp = 0;
     switch (vdev->senseid.cu_model) {
     case VIRTIO_ID_BLOCK:
-        vdev->config.blk.blk_size = 4096;
+        vdev->config.blk.blk_size = VIRTIO_DASD_DEFAULT_BLOCK_SIZE;
         break;
     case VIRTIO_ID_SCSI:
         vdev->config.blk.blk_size = vdev->scsi_block_size;
-- 
2.31.1