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pc-bios/s390-ccw/virtio-blkdev: Remove virtio_assume_scsi()

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The virtio_assume_scsi() function is very questionable: First, it
is only called for virtio-blk, and not for virtio-scsi, so the naming
is already quite confusing. Second, it is called if we detected a
"invalid" IPL disk, trying to fix it by blindly setting a sector
size of 512. This of course won't work in most cases since disks
might have a different sector size for a reason.

Thus let's remove this strange function now. The calling code can
also be removed completely, since there is another spot in main.c
that does "IPL_assert(virtio_ipl_disk_is_valid(), ...)" to make
sure that we do not try to IPL from an invalid device.

Message-Id: <20220704111903.62400-6-thuth@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2022-07-04 13:18:56 +02:00
parent bbf615f7b7
commit 5447de2619
2 changed files with 0 additions and 25 deletions
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24
pc-bios/s390-ccw/virtio-blkdev.c
View file

@ -112,23 +112,6 @@ VirtioGDN virtio_guessed_disk_nature(void)
return virtio_get_device()->guessed_disk_nature;
}
void virtio_assume_scsi(void)
{
VDev *vdev = virtio_get_device();
switch (vdev->senseid.cu_model) {
case VIRTIO_ID_BLOCK:
vdev->guessed_disk_nature = VIRTIO_GDN_SCSI;
vdev->config.blk.blk_size = VIRTIO_SCSI_BLOCK_SIZE;
vdev->config.blk.physical_block_exp = 0;
vdev->blk_factor = 1;
break;
case VIRTIO_ID_SCSI:
vdev->scsi_block_size = VIRTIO_SCSI_BLOCK_SIZE;
break;
}
}
void virtio_assume_iso9660(void)
{
VDev *vdev = virtio_get_device();
@ -247,13 +230,6 @@ int virtio_blk_setup_device(SubChannelId schid)
switch (vdev->senseid.cu_model) {
case VIRTIO_ID_BLOCK:
sclp_print("Using virtio-blk.\n");
if (!virtio_ipl_disk_is_valid()) {
/* make sure all getters but blocksize return 0 for
* invalid IPL disk
*/
memset(&vdev->config.blk, 0, sizeof(vdev->config.blk));
virtio_assume_scsi();
}
break;
case VIRTIO_ID_SCSI:
IPL_assert(vdev->config.scsi.sense_size == VIRTIO_SCSI_SENSE_SIZE,

1
pc-bios/s390-ccw/virtio.h
View file

@ -182,7 +182,6 @@ enum guessed_disk_nature_type {
typedef enum guessed_disk_nature_type VirtioGDN;
VirtioGDN virtio_guessed_disk_nature(void);
void virtio_assume_scsi(void);
void virtio_assume_eckd(void);
void virtio_assume_iso9660(void);