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scsi: add scsi-defs.h

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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>
This commit is contained in:
Gerd Hoffmann 2009-11-26 15:33:53 +01:00 • committed by Anthony Liguori
parent b07995e3ca
commit 0d65e1f856
3 changed files with 174 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

41
hw/scsi-disk.c
View file

@ -30,14 +30,7 @@ do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0)
#include "qemu-common.h"
#include "block.h"
#include "scsi.h"
#define SENSE_NO_SENSE 0
#define SENSE_NOT_READY 2
#define SENSE_HARDWARE_ERROR 4
#define SENSE_ILLEGAL_REQUEST 5
#define STATUS_GOOD 0
#define STATUS_CHECK_CONDITION 2
#include "scsi-defs.h"
#define SCSI_DMA_BUF_SIZE 131072
#define SCSI_MAX_INQUIRY_LEN 256
@ -128,7 +121,7 @@ static void scsi_read_complete(void * opaque, int ret)
if (ret) {
DPRINTF("IO error\n");
r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, 0);
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NO_SENSE);
scsi_command_complete(r, CHECK_CONDITION, NO_SENSE);
return;
}
DPRINTF("Data ready tag=0x%x len=%" PRId64 "\n", r->req.tag, r->iov.iov_len);
@ -147,7 +140,7 @@ static void scsi_read_data(SCSIDevice *d, uint32_t tag)
if (!r) {
BADF("Bad read tag 0x%x\n", tag);
/* ??? This is the wrong error. */
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR);
return;
}
if (r->sector_count == (uint32_t)-1) {
@ -158,7 +151,7 @@ static void scsi_read_data(SCSIDevice *d, uint32_t tag)
}
DPRINTF("Read sector_count=%d\n", r->sector_count);
if (r->sector_count == 0) {
scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE);
scsi_command_complete(r, GOOD, NO_SENSE);
return;
}
@ -171,7 +164,7 @@ static void scsi_read_data(SCSIDevice *d, uint32_t tag)
r->req.aiocb = bdrv_aio_readv(s->dinfo->bdrv, r->sector, &r->qiov, n,
scsi_read_complete, r);
if (r->req.aiocb == NULL)
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR);
r->sector += n;
r->sector_count -= n;
}
@ -189,8 +182,8 @@ static int scsi_handle_write_error(SCSIDiskReq *r, int error)
r->status |= SCSI_REQ_STATUS_RETRY;
vm_stop(0);
} else {
scsi_command_complete(r, STATUS_CHECK_CONDITION,
SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION,
HARDWARE_ERROR);
}
return 1;
@ -213,7 +206,7 @@ static void scsi_write_complete(void * opaque, int ret)
r->sector += n;
r->sector_count -= n;
if (r->sector_count == 0) {
scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE);
scsi_command_complete(r, GOOD, NO_SENSE);
} else {
len = r->sector_count * 512;
if (len > SCSI_DMA_BUF_SIZE) {
@ -236,8 +229,8 @@ static void scsi_write_request(SCSIDiskReq *r)
r->req.aiocb = bdrv_aio_writev(s->dinfo->bdrv, r->sector, &r->qiov, n,
scsi_write_complete, r);
if (r->req.aiocb == NULL)
scsi_command_complete(r, STATUS_CHECK_CONDITION,
SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION,
HARDWARE_ERROR);
} else {
/* Invoke completion routine to fetch data from host. */
scsi_write_complete(r, 0);
@ -255,7 +248,7 @@ static int scsi_write_data(SCSIDevice *d, uint32_t tag)
r = scsi_find_request(s, tag);
if (!r) {
BADF("Bad write tag 0x%x\n", tag);
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR);
return 1;
}
@ -401,7 +394,7 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
goto fail;
memset(outbuf, 0, 4);
r->iov.iov_len = 4;
if (s->sense == SENSE_NOT_READY && len >= 18) {
if (s->sense == NOT_READY && len >= 18) {
memset(outbuf, 0, 18);
r->iov.iov_len = 18;
outbuf[7] = 10;
@ -767,7 +760,7 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
r->iov.iov_len = 8;
} else {
notready:
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY);
scsi_command_complete(r, CHECK_CONDITION, NOT_READY);
return 0;
}
break;
@ -877,7 +870,7 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
/* Protection, exponent and lowest lba field left blank. */
r->iov.iov_len = len;
} else {
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY);
scsi_command_complete(r, CHECK_CONDITION, NOT_READY);
return 0;
}
break;
@ -898,14 +891,14 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
default:
DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]);
fail:
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_ILLEGAL_REQUEST);
scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST);
return 0;
illegal_lba:
scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR);
scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR);
return 0;
}
if (r->sector_count == 0 && r->iov.iov_len == 0) {
scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE);
scsi_command_complete(r, GOOD, NO_SENSE);
}
len = r->sector_count * 512 + r->iov.iov_len;
if (is_write) {