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scsi: Move sense handling into the driver

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The current sense handling in scsi-bus is only used by the
scsi-disk driver; the scsi-generic driver is using its own.
So we should move the current sense handling into the
scsi-disk driver.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Hannes Reinecke 2010-11-24 12:15:59 +01:00 • committed by Kevin Wolf
parent 39d989823f
commit a6d96eb78b
3 changed files with 25 additions and 26 deletions
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33
hw/scsi-disk.c
View file

@ -49,6 +49,10 @@ do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0)
typedef struct SCSIDiskState SCSIDiskState;
typedef struct SCSISense {
uint8_t key;
} SCSISense;
typedef struct SCSIDiskReq {
SCSIRequest req;
/* ??? We should probably keep track of whether the data transfer is
@ -72,6 +76,7 @@ struct SCSIDiskState
QEMUBH *bh;
char *version;
char *serial;
SCSISense sense;
};
static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type);
@ -100,10 +105,22 @@ static SCSIDiskReq *scsi_find_request(SCSIDiskState *s, uint32_t tag)
return DO_UPCAST(SCSIDiskReq, req, scsi_req_find(&s->qdev, tag));
}
static void scsi_req_set_status(SCSIRequest *req, int status, int sense_code)
static void scsi_disk_clear_sense(SCSIDiskState *s)
{
req->status = status;
scsi_dev_set_sense(req->dev, sense_code);
memset(&s->sense, 0, sizeof(s->sense));
}
static void scsi_disk_set_sense(SCSIDiskState *s, uint8_t key)
{
s->sense.key = key;
}
static void scsi_req_set_status(SCSIDiskReq *r, int status, int sense_code)
{
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
r->req.status = status;
scsi_disk_set_sense(s, sense_code);
}
/* Helper function for command completion. */
@ -111,7 +128,7 @@ static void scsi_command_complete(SCSIDiskReq *r, int status, int sense)
{
DPRINTF("Command complete tag=0x%x status=%d sense=%d\n",
r->req.tag, status, sense);
scsi_req_set_status(&r->req, status, sense);
scsi_req_set_status(r, status, sense);
scsi_req_complete(&r->req);
scsi_remove_request(r);
}
@ -822,7 +839,7 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
goto illegal_request;
memset(outbuf, 0, 4);
buflen = 4;
if (req->dev->sense.key == NOT_READY && req->cmd.xfer >= 18) {
if (s->sense.key == NOT_READY && req->cmd.xfer >= 18) {
memset(outbuf, 0, 18);
buflen = 18;
outbuf[7] = 10;
@ -832,8 +849,8 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
}
outbuf[0] = 0xf0;
outbuf[1] = 0;
outbuf[2] = req->dev->sense.key;
scsi_dev_clear_sense(req->dev);
outbuf[2] = s->sense.key;
scsi_disk_clear_sense(s);
break;
case INQUIRY:
buflen = scsi_disk_emulate_inquiry(req, outbuf);
@ -966,7 +983,7 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
default:
goto illegal_request;
}
scsi_req_set_status(req, GOOD, NO_SENSE);
scsi_req_set_status(r, GOOD, NO_SENSE);
return buflen;
not_ready: