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SCSI emulation: Support unmap via WRITE_SAME_10. 

This was added in SBC r26 in place of the reserved bits that were
present up to that version.

It is the same as WRITE_SAME_16 as far as QEMU is concerned.

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Ronnie Sahlberg 2012-04-19 20:41:16 +10:00 committed by Paolo Bonzini
parent 6a2de0f203
commit c9e4d8284e
1 changed files with 3 additions and 2 deletions
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5
hw/scsi-disk.c
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@ -627,7 +627,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
{
outbuf[3] = buflen = 8;
outbuf[4] = 0;
outbuf[5] = 0x40; /* write same with unmap supported */
outbuf[5] = 0x60; /* write_same 10/16 supported */
outbuf[6] = 0;
outbuf[7] = 0;
break;
@ -1558,10 +1558,11 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
goto illegal_lba;
}
break;
case WRITE_SAME_10:
case WRITE_SAME_16:
len = r->req.cmd.xfer / s->qdev.blocksize;
DPRINTF("WRITE SAME(16) (sector %" PRId64 ", count %d)\n",
DPRINTF("WRITE SAME() (sector %" PRId64 ", count %d)\n",
r->req.cmd.lba, len);
if (r->req.cmd.lba > s->qdev.max_lba) {