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-rw-r--r--include/scsi/scsi_cmnd.h8
-rw-r--r--include/scsi/scsi_dbg.h2
-rw-r--r--include/scsi/scsi_device.h22
-rw-r--r--include/scsi/scsi_eh.h11
-rw-r--r--include/scsi/scsi_host.h26
-rw-r--r--include/scsi/scsi_request.h16
-rw-r--r--include/scsi/scsi_transport.h8
-rw-r--r--include/scsi/scsi_transport_spi.h6
8 files changed, 69 insertions, 30 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 9957f16..bed4b7c 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -51,12 +51,16 @@ struct scsi_cmnd {
* printk's to use ->pid, so that we can kill this field.
*/
unsigned long serial_number;
+ /*
+ * This is set to jiffies as it was when the command was first
+ * allocated. It is used to time how long the command has
+ * been outstanding
+ */
+ unsigned long jiffies_at_alloc;
int retries;
int allowed;
int timeout_per_command;
- int timeout_total;
- int timeout;
unsigned char cmd_len;
unsigned char old_cmd_len;
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 12e9093..b090a11 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -3,8 +3,10 @@
struct scsi_cmnd;
struct scsi_request;
+struct scsi_sense_hdr;
extern void scsi_print_command(struct scsi_cmnd *);
+extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
extern void __scsi_print_command(unsigned char *);
extern void scsi_print_sense(const char *, struct scsi_cmnd *);
extern void scsi_print_req_sense(const char *, struct scsi_request *);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 835af8e..da63722 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -8,8 +8,17 @@
struct request_queue;
struct scsi_cmnd;
-struct scsi_mode_data;
struct scsi_lun;
+struct scsi_sense_hdr;
+
+struct scsi_mode_data {
+ __u32 length;
+ __u16 block_descriptor_length;
+ __u8 medium_type;
+ __u8 device_specific;
+ __u8 header_length;
+ __u8 longlba:1;
+};
/*
* sdev state: If you alter this, you also need to alter scsi_sysfs.c
@@ -228,7 +237,8 @@ extern int scsi_set_medium_removal(struct scsi_device *, char);
extern int scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
unsigned char *buffer, int len, int timeout,
- int retries, struct scsi_mode_data *data);
+ int retries, struct scsi_mode_data *data,
+ struct scsi_sense_hdr *);
extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
int retries);
extern int scsi_device_set_state(struct scsi_device *sdev,
@@ -247,6 +257,14 @@ 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);
+extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
+ int data_direction, void *buffer, unsigned bufflen,
+ struct scsi_sense_hdr *, int timeout, int retries);
+
static inline int scsi_device_online(struct scsi_device *sdev)
{
return sdev->sdev_state != SDEV_OFFLINE;
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 80557f8..fabd879 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -26,10 +26,15 @@ 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 *));
-extern int scsi_delete_timer(struct scsi_cmnd *);
extern void scsi_report_bus_reset(struct Scsi_Host *, int);
extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
extern int scsi_block_when_processing_errors(struct scsi_device *);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 81d5234..916144b 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -429,12 +429,15 @@ struct scsi_host_template {
};
/*
- * shost states
+ * shost state: If you alter this, you also need to alter scsi_sysfs.c
+ * (for the ascii descriptions) and the state model enforcer:
+ * scsi_host_set_state()
*/
-enum {
- SHOST_ADD,
- SHOST_DEL,
+enum scsi_host_state {
+ SHOST_CREATED = 1,
+ SHOST_RUNNING,
SHOST_CANCEL,
+ SHOST_DEL,
SHOST_RECOVERY,
};
@@ -464,12 +467,10 @@ struct Scsi_Host {
struct task_struct * ehandler; /* Error recovery thread. */
struct semaphore * eh_wait; /* The error recovery thread waits
on this. */
- struct completion * eh_notify; /* wait for eh to begin or end */
struct semaphore * eh_action; /* Wait for specific actions on the
host. */
unsigned int eh_active:1; /* Indicates the eh thread is awake and active if
this is true. */
- unsigned int eh_kill:1; /* set when killing the eh thread */
wait_queue_head_t host_wait;
struct scsi_host_template *hostt;
struct scsi_transport_template *transportt;
@@ -575,7 +576,7 @@ struct Scsi_Host {
unsigned int irq;
- unsigned long shost_state;
+ enum scsi_host_state shost_state;
/* ldm bits */
struct device shost_gendev;
@@ -633,6 +634,7 @@ extern void scsi_remove_host(struct Scsi_Host *);
extern struct Scsi_Host *scsi_host_get(struct Scsi_Host *);
extern void scsi_host_put(struct Scsi_Host *t);
extern struct Scsi_Host *scsi_host_lookup(unsigned short);
+extern const char *scsi_host_state_name(enum scsi_host_state);
extern u64 scsi_calculate_bounce_limit(struct Scsi_Host *);
@@ -646,6 +648,15 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost)
return shost->shost_gendev.parent;
}
+/**
+ * scsi_host_scan_allowed - Is scanning of this host allowed
+ * @shost: Pointer to Scsi_Host.
+ **/
+static inline int scsi_host_scan_allowed(struct Scsi_Host *shost)
+{
+ return shost->shost_state == SHOST_RUNNING;
+}
+
extern void scsi_unblock_requests(struct Scsi_Host *);
extern void scsi_block_requests(struct Scsi_Host *);
@@ -663,5 +674,6 @@ extern struct scsi_device *scsi_get_host_dev(struct Scsi_Host *);
/* legacy interfaces */
extern struct Scsi_Host *scsi_register(struct scsi_host_template *, int);
extern void scsi_unregister(struct Scsi_Host *);
+extern int scsi_host_set_state(struct Scsi_Host *, enum scsi_host_state);
#endif /* _SCSI_SCSI_HOST_H */
diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h
index 9871940..6a14002 100644
--- a/include/scsi/scsi_request.h
+++ b/include/scsi/scsi_request.h
@@ -54,20 +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);
-
-struct scsi_mode_data {
- __u32 length;
- __u16 block_descriptor_length;
- __u8 medium_type;
- __u8 device_specific;
- __u8 header_length;
- __u8 longlba:1;
-};
-
-extern int __scsi_mode_sense(struct scsi_request *SRpnt, int dbd,
- int modepage, unsigned char *buffer, int len,
- int timeout, int retries,
- struct scsi_mode_data *data);
-
-
#endif /* _SCSI_SCSI_REQUEST_H */
diff --git a/include/scsi/scsi_transport.h b/include/scsi/scsi_transport.h
index a4f1837..f6e0bb4 100644
--- a/include/scsi/scsi_transport.h
+++ b/include/scsi/scsi_transport.h
@@ -29,6 +29,14 @@ struct scsi_transport_template {
struct transport_container target_attrs;
struct transport_container device_attrs;
+ /*
+ * If set, call target_parent prior to allocating a scsi_target,
+ * so we get the appropriate parent for the target. This function
+ * is required for transports like FC and iSCSI that do not put the
+ * scsi_target under scsi_host.
+ */
+ struct device *(*target_parent)(struct Scsi_Host *, int, uint);
+
/* The size of the specific transport attribute structure (a
* space of this size will be left at the end of the
* scsi_* structure */
diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h
index a30d6cd..6bdc4af 100644
--- a/include/scsi/scsi_transport_spi.h
+++ b/include/scsi/scsi_transport_spi.h
@@ -39,6 +39,7 @@ struct spi_transport_attrs {
unsigned int rd_strm:1; /* Read streaming enabled */
unsigned int rti:1; /* Retain Training Information */
unsigned int pcomp_en:1;/* Precompensation enabled */
+ unsigned int hold_mcs:1;/* Hold Margin Control Settings */
unsigned int initial_dv:1; /* DV done to this target yet */
unsigned long flags; /* flags field for drivers to use */
/* Device Properties fields */
@@ -78,6 +79,7 @@ struct spi_host_attrs {
#define spi_rd_strm(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rd_strm)
#define spi_rti(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rti)
#define spi_pcomp_en(x) (((struct spi_transport_attrs *)&(x)->starget_data)->pcomp_en)
+#define spi_hold_mcs(x) (((struct spi_transport_attrs *)&(x)->starget_data)->hold_mcs)
#define spi_initial_dv(x) (((struct spi_transport_attrs *)&(x)->starget_data)->initial_dv)
#define spi_support_sync(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_sync)
@@ -114,8 +116,11 @@ struct spi_function_template {
void (*set_rti)(struct scsi_target *, int);
void (*get_pcomp_en)(struct scsi_target *);
void (*set_pcomp_en)(struct scsi_target *, int);
+ void (*get_hold_mcs)(struct scsi_target *);
+ void (*set_hold_mcs)(struct scsi_target *, int);
void (*get_signalling)(struct Scsi_Host *);
void (*set_signalling)(struct Scsi_Host *, enum spi_signal_type);
+ int (*deny_binding)(struct scsi_target *);
/* The driver sets these to tell the transport class it
* wants the attributes displayed in sysfs. If the show_ flag
* is not set, the attribute will be private to the transport
@@ -130,6 +135,7 @@ struct spi_function_template {
unsigned long show_rd_strm:1;
unsigned long show_rti:1;
unsigned long show_pcomp_en:1;
+ unsigned long show_hold_mcs:1;
};
struct scsi_transport_template *spi_attach_transport(struct spi_function_template *);
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