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scsi: Move sense handling into the driver 

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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10
hw/scsi-bus.c
View File

@ -123,16 +123,6 @@ int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
return res;
}
void scsi_dev_clear_sense(SCSIDevice *dev)
{
memset(&dev->sense, 0, sizeof(dev->sense));
}
void scsi_dev_set_sense(SCSIDevice *dev, uint8_t key)
{
dev->sense.key = key;
}
SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun)
{
SCSIRequest *req;

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:

8
hw/scsi.h
View File

@ -26,10 +26,6 @@ enum SCSIXferMode {
SCSI_XFER_TO_DEV, /* WRITE, MODE_SELECT, ... */
};
typedef struct SCSISense {
uint8_t key;
} SCSISense;
typedef struct SCSIRequest {
SCSIBus *bus;
SCSIDevice *dev;
@ -57,7 +53,6 @@ struct SCSIDevice
QTAILQ_HEAD(, SCSIRequest) requests;
int blocksize;
int type;
struct SCSISense sense;
};
/* cdrom.c */
@ -102,9 +97,6 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, int unit);
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
void scsi_dev_clear_sense(SCSIDevice *dev);
void scsi_dev_set_sense(SCSIDevice *dev, uint8_t key);
SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
SCSIRequest *scsi_req_find(SCSIDevice *d, uint32_t tag);
void scsi_req_free(SCSIRequest *req);