diff options
Diffstat (limited to 'include/scsi/scsi_device.h')
| -rw-r--r-- | include/scsi/scsi_device.h | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index d5057bc338f..ab7acbe8096 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -46,6 +46,22 @@ enum scsi_device_state { * to the scsi lld. */ }; +enum scsi_device_event { + SDEV_EVT_MEDIA_CHANGE = 1, /* media has changed */ + + SDEV_EVT_LAST = SDEV_EVT_MEDIA_CHANGE, + SDEV_EVT_MAXBITS = SDEV_EVT_LAST + 1 +}; + +struct scsi_event { + enum scsi_device_event evt_type; + struct list_head node; + + /* put union of data structures, for non-simple event types, + * here + */ +}; + struct scsi_device { struct Scsi_Host *host; struct request_queue *request_queue; @@ -106,9 +122,6 @@ struct scsi_device { unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */ unsigned simple_tags:1; /* simple queue tag messages are enabled */ unsigned ordered_tags:1;/* ordered queue tag messages are enabled */ - unsigned single_lun:1; /* Indicates we should only allow I/O to - * one of the luns for the device at a - * time. */ unsigned was_reset:1; /* There was a bus reset on the bus for * this device */ unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN @@ -126,6 +139,11 @@ struct scsi_device { unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */ unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */ unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */ + unsigned last_sector_bug:1; /* Always read last sector in a 1 sector read */ + + DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ + struct list_head event_list; /* asserted events */ + struct work_struct event_work; unsigned int device_blocked; /* Device returned QUEUE_FULL. */ @@ -182,6 +200,9 @@ struct scsi_target { unsigned int id; /* target id ... replace * scsi_device.id eventually */ unsigned int create:1; /* signal that it needs to be added */ + unsigned int single_lun:1; /* Indicates we should only + * allow I/O to one of the luns + * for the device at a time. */ unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */ /* means no lun present */ @@ -222,6 +243,9 @@ extern struct scsi_device *__scsi_device_lookup_by_target(struct scsi_target *, uint); extern void starget_for_each_device(struct scsi_target *, void *, void (*fn)(struct scsi_device *, void *)); +extern void __starget_for_each_device(struct scsi_target *, void *, + void (*fn)(struct scsi_device *, + void *)); /* only exposed to implement shost_for_each_device */ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, @@ -272,9 +296,14 @@ extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp, struct scsi_mode_data *data, struct scsi_sense_hdr *); extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout, - int retries); + int retries, struct scsi_sense_hdr *sshdr); extern int scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state); +extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type, + gfp_t gfpflags); +extern void sdev_evt_send(struct scsi_device *sdev, struct scsi_event *evt); +extern void sdev_evt_send_simple(struct scsi_device *sdev, + enum scsi_device_event evt_type, gfp_t gfpflags); extern int scsi_device_quiesce(struct scsi_device *sdev); extern void scsi_device_resume(struct scsi_device *sdev); extern void scsi_target_quiesce(struct scsi_target *); @@ -358,6 +387,10 @@ static inline int scsi_device_qas(struct scsi_device *sdev) return 0; return sdev->inquiry[56] & 0x02; } +static inline int scsi_device_enclosure(struct scsi_device *sdev) +{ + return sdev->inquiry[6] & (1<<6); +} #define MODULE_ALIAS_SCSI_DEVICE(type) \ MODULE_ALIAS("scsi:t-" __stringify(type) "*") |