diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-07-16 14:07:55 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-07-27 08:25:26 +0200 |
| commit | aaebacef0a55a7113335ae3f998031d3c538a477 (patch) | |
| tree | 8f76f724713f358ca2092526557418afa732eb71 | |
| parent | e48e84ea80cb2e7fe6e48196ce187cfba6e3eb2c (diff) | |
scsi-disk: report resized disk via sense codes
Linux will not use these, but a very similar mechanism will be used to
report the condition via virtio-scsi events.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/scsi-bus.c | 5 | ||||
| -rw-r--r-- | hw/scsi-disk.c | 24 | ||||
| -rw-r--r-- | hw/scsi.h | 2 |
3 files changed, 29 insertions, 2 deletions
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c index c38c0ec574..04262de44a 100644 --- a/hw/scsi-bus.c +++ b/hw/scsi-bus.c @@ -1161,6 +1161,11 @@ const struct SCSISense sense_code_LUN_FAILURE = { .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 }; +/* Unit attention, Capacity data has changed */ +const struct SCSISense sense_code_CAPACITY_CHANGED = { + .key = UNIT_ATTENTION, .asc = 0x2a, .ascq = 0x09 +}; + /* Unit attention, Power on, reset or bus device reset occurred */ const struct SCSISense sense_code_RESET = { .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x00 diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 734fe13c65..9ba405ff90 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -1860,6 +1860,18 @@ static void scsi_destroy(SCSIDevice *dev) blockdev_mark_auto_del(s->qdev.conf.bs); } +static void scsi_disk_resize_cb(void *opaque) +{ + SCSIDiskState *s = opaque; + + /* SPC lists this sense code as available only for + * direct-access devices. + */ + if (s->qdev.type == TYPE_DISK) { + scsi_device_set_ua(&s->qdev, SENSE_CODE(CAPACITY_CHANGED)); + } +} + static void scsi_cd_change_media_cb(void *opaque, bool load) { SCSIDiskState *s = opaque; @@ -1901,11 +1913,17 @@ static bool scsi_cd_is_medium_locked(void *opaque) return ((SCSIDiskState *)opaque)->tray_locked; } -static const BlockDevOps scsi_cd_block_ops = { +static const BlockDevOps scsi_disk_removable_block_ops = { .change_media_cb = scsi_cd_change_media_cb, .eject_request_cb = scsi_cd_eject_request_cb, .is_tray_open = scsi_cd_is_tray_open, .is_medium_locked = scsi_cd_is_medium_locked, + + .resize_cb = scsi_disk_resize_cb, +}; + +static const BlockDevOps scsi_disk_block_ops = { + .resize_cb = scsi_disk_resize_cb, }; static void scsi_disk_unit_attention_reported(SCSIDevice *dev) @@ -1950,7 +1968,9 @@ static int scsi_initfn(SCSIDevice *dev) } if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) { - bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_cd_block_ops, s); + bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s); + } else { + bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s); } bdrv_set_buffer_alignment(s->qdev.conf.bs, s->qdev.blocksize); @@ -200,6 +200,8 @@ extern const struct SCSISense sense_code_IO_ERROR; extern const struct SCSISense sense_code_I_T_NEXUS_LOSS; /* Command aborted, Logical Unit failure */ extern const struct SCSISense sense_code_LUN_FAILURE; +/* LUN not ready, Capacity data has changed */ +extern const struct SCSISense sense_code_CAPACITY_CHANGED; /* LUN not ready, Medium not present */ extern const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM; /* Unit attention, Power on, reset or bus device reset occurred */ |