The transfer length depends on the specific service action
code, as defined in the SCSI stream commands spec section 7.7.
Up to now only the extended form was supported.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds basic support for SCSI media changer commands.
Not all commands are supported as of now, but enough to cover
basic functionality.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change operation code of LOAD_UNLOAD command to 0x1b as described in
section 7.3 of the SCSI Stream Commands spec.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This command is not necessary for CD-ROM and DVD-ROM, but some versions of
udev trip on its absence.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The transfer length for these commands is different from the transfer
length of the corresponding disk commands, so parse it specially.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add more commands and their names, and remove SEEK(6) which is obsolete.
Instead, use SET_CAPACITY which is still in SSC.
Tested-by: Thomas Schmitt <scdbackup@gmx.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This patch adds a few stub implementations for MMC commands to
scsi-disk, to be filled in later in the series. It also adds to
scsi-defs.h constants for commands implemented by ide/atapi.c,
when missing.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
As a complement to the previous patch, move definitions for GET EVENT
STATUS NOTIFICATION from the two functions to scsi-defs.h.
The NCR_* constants are just bit values corresponding to the ENC_*
values, with no offsets even, so keep just one copy.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The definitions in ide/internal.h are duplicates, since ATAPI commands
actually come from SCSI. Use the ones in scsi-defs.h and move the
missing ones there. Two exceptions:
- MODE_PAGE_WRITE_PARMS conflicts with the "flexible disk geometry"
page in scsi-disk.c. It is unused, so pick the latter.
- GPCMD_* is left in ide/internal.h, at least for now.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to distinguish
from the 12-byte CDB variant, and add a constant for the subcommand.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Unit attention conditions override any sense data the device already
has. Their signaling and clearing is handled entirely by the SCSIBus
code, and they are completely transparent to the SCSIDevices.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Instead of using its own definitions scsi-disk should
be using the device type of the parent device.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
SET_WINDOW command is vendor-specific only.
So we shouldn't try to emulate it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Support discards via the WRITE SAME command with the unmap bit set, and
tell the initiator about the support for it via the block limit and the
new thin provisioning EVPD pages. Also fix the comment which incorrectly
describedthe block limits EVPD page.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Traditionally, the linux stack is using SCSI status codes
which are shifted by one as compared to those defined in SAM.
A SCSI emulation should naturally return the SAM defined codes,
not the linux ones.
So to avoid any confusion this patch modifies the existing
definitions to match those found in SAM and removes any
(now obsolete) byte-shift from the returned status codes.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This patch updates hw/scsi-bus.c to add MAINTENANCE_IN and MAINTENANCE_OUT case in
scsi_req_length() for TYPE_ROM with MMC commands. It also adds the MAINTENANCE_OUT
case in scsi_req_xfer_mode() to set SCSI_XFER_TO_DEV for outgoing write data.
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add READ_16 + friends to scsi-defs.h, scsi_command_name() and the
request parsing helper functions.
Use them in scsi-disk.c too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move REPORT_LUNS emulation from scsi_send_command() to
scsi_disk_emulate_command().
Also add REPORT_LUNS to scsi-defs.h and scsi_command_name().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move SERVICE_ACTION_IN emulation from scsi_send_command() to
scsi_disk_emulate_command().
Also add SERVICE_ACTION_IN to scsi-defs.h and scsi_command_name().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move GET_CONFIGURATION emulation from scsi_send_command() to
scsi_disk_emulate_command().
Also add GET_CONFIGURATION to scsi-defs.h and scsi_command_name().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Largely based on <scsi/scsi.h> from linux. Added into the tree so we
can use the defines everywhere, not just in scsi-generic.c (which is
linux-specific).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
