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[SCSI] convert SPI transport class to scsi_execute

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This one's slightly more difficult.  The transport class uses
REQ_FAILFAST, so another interface (scsi_execute) had to be invented to
take the extra flag.  Also, the sense functions are shifted around to
allow spi_execute to place data directly into a struct scsi_sense_hdr.
With this change, there's probably a lot of unnecessary sense buffer
allocation going on which we can fix later.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley
2005-08-28 11:31:14 -05:00
parent 1cf72699c1
commit 33aa687db9
6 changed files with 89 additions and 77 deletions
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include/scsi/scsi_device.h
+13
View File
@@ -256,6 +256,19 @@ extern void int_to_scsilun(unsigned int, struct scsi_lun *);
extern const char *scsi_device_state_name(enum scsi_device_state);
extern int scsi_is_sdev_device(const struct device *);
extern int scsi_is_target_device(const struct device *);
extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries,
int flag);
static inline int
scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries)
{
return scsi_execute(sdev, cmd, data_direction, buffer, bufflen, sense,
timeout, retries, 0);
}
static inline int scsi_device_online(struct scsi_device *sdev)
{
return sdev->sdev_state != SDEV_OFFLINE;
include/scsi/scsi_eh.h
+8
View File
@@ -26,6 +26,14 @@ struct scsi_sense_hdr { /* See SPC-3 section 4.5 */
u8 additional_length; /* always 0 for fixed sense format */
};
static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
{
if (!sshdr)
return 0;
return (sshdr->response_code & 0x70) == 0x70;
}
extern void scsi_add_timer(struct scsi_cmnd *, int,
void (*)(struct scsi_cmnd *));
include/scsi/scsi_request.h
-4
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@@ -54,8 +54,4 @@ extern void scsi_do_req(struct scsi_request *, const void *cmnd,
void *buffer, unsigned bufflen,
void (*done) (struct scsi_cmnd *),
int timeout, int retries);
extern int scsi_execute_req(struct scsi_device *sdev, unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries);
#endif /* _SCSI_SCSI_REQUEST_H */