Blame view
include/scsi/scsi_device.h
17.2 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 4 5 6 |
#ifndef _SCSI_SCSI_DEVICE_H #define _SCSI_SCSI_DEVICE_H #include <linux/device.h> #include <linux/list.h> #include <linux/spinlock.h> |
ffedb4522 [SCSI] fix scsi p... |
7 |
#include <linux/workqueue.h> |
a4d04a4cd [SCSI] Make error... |
8 |
#include <linux/blkdev.h> |
d211f052f [SCSI] sd: fix US... |
9 |
#include <scsi/scsi.h> |
60063497a atomic: use <linu... |
10 |
#include <linux/atomic.h> |
1da177e4c Linux-2.6.12-rc2 |
11 12 13 |
struct request_queue; struct scsi_cmnd; |
e10fb91c4 [SCSI] fix functi... |
14 |
struct scsi_lun; |
ea73a9f23 [SCSI] convert sd... |
15 |
struct scsi_sense_hdr; |
1da177e4c Linux-2.6.12-rc2 |
16 |
|
1cf72699c [SCSI] convert th... |
17 18 19 20 21 22 23 24 |
struct scsi_mode_data { __u32 length; __u16 block_descriptor_length; __u8 medium_type; __u8 device_specific; __u8 header_length; __u8 longlba:1; }; |
1da177e4c Linux-2.6.12-rc2 |
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 |
/* * sdev state: If you alter this, you also need to alter scsi_sysfs.c * (for the ascii descriptions) and the state model enforcer: * scsi_lib:scsi_device_set_state(). */ enum scsi_device_state { SDEV_CREATED = 1, /* device created but not added to sysfs * Only internal commands allowed (for inq) */ SDEV_RUNNING, /* device properly configured * All commands allowed */ SDEV_CANCEL, /* beginning to delete device * Only error handler commands allowed */ SDEV_DEL, /* device deleted * no commands allowed */ SDEV_QUIESCE, /* Device quiescent. No block commands * will be accepted, only specials (which * originate in the mid-layer) */ SDEV_OFFLINE, /* Device offlined (by error handling or * user request */ |
6f4267e3b [SCSI] Update the... |
44 45 46 47 48 |
SDEV_BLOCK, /* Device blocked by scsi lld. No * scsi commands from user or midlayer * should be issued to the scsi * lld. */ SDEV_CREATED_BLOCK, /* same as above but for created devices */ |
1da177e4c Linux-2.6.12-rc2 |
49 |
}; |
a341cd0f6 SCSI: add asynchr... |
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 |
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 */ }; |
1da177e4c Linux-2.6.12-rc2 |
65 66 67 68 69 70 71 |
struct scsi_device { struct Scsi_Host *host; struct request_queue *request_queue; /* the next two are protected by the host->host_lock */ struct list_head siblings; /* list of all devices on this host */ struct list_head same_target_siblings; /* just the devices sharing same target id */ |
c2a9331c6 updates for CFQ o... |
72 |
/* this is now protected by the request_queue->queue_lock */ |
06f81ea8c [PATCH] scsi: rem... |
73 74 |
unsigned int device_busy; /* commands actually active on * low-level. protected by queue_lock. */ |
1da177e4c Linux-2.6.12-rc2 |
75 76 77 78 79 |
spinlock_t list_lock; struct list_head cmd_list; /* queue of in use SCSI Command structures */ struct list_head starved_entry; struct scsi_cmnd *current_cmnd; /* currently active command */ unsigned short queue_depth; /* How deep of a queue we want */ |
4a84067db [SCSI] add queue_... |
80 |
unsigned short max_queue_depth; /* max queue depth */ |
1da177e4c Linux-2.6.12-rc2 |
81 82 |
unsigned short last_queue_full_depth; /* These two are used by */ unsigned short last_queue_full_count; /* scsi_track_queue_full() */ |
4a84067db [SCSI] add queue_... |
83 84 85 86 87 |
unsigned long last_queue_full_time; /* last queue full time */ unsigned long queue_ramp_up_period; /* ramp up period in jiffies */ #define SCSI_DEFAULT_RAMP_UP_PERIOD (120 * HZ) unsigned long last_queue_ramp_up; /* last queue ramp up time */ |
1da177e4c Linux-2.6.12-rc2 |
88 89 90 91 92 93 94 95 |
unsigned int id, lun, channel; unsigned int manufacturer; /* Manufacturer of device, for using * vendor-specific cmd's */ unsigned sector_size; /* size in bytes */ void *hostdata; /* available to low-level driver */ |
1da177e4c Linux-2.6.12-rc2 |
96 97 98 99 100 |
char type; char scsi_level; char inq_periph_qual; /* PQ from INQUIRY data */ unsigned char inquiry_len; /* valid bytes in 'inquiry' */ unsigned char * inquiry; /* INQUIRY response data */ |
7f23e146a [SCSI] correct so... |
101 102 103 |
const char * vendor; /* [back_compat] point into 'inquiry' ... */ const char * model; /* ... after scan; point to static string */ const char * rev; /* ... "nullnullnullnull" before scan */ |
1da177e4c Linux-2.6.12-rc2 |
104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 |
unsigned char current_tag; /* current tag */ struct scsi_target *sdev_target; /* used only for single_lun */ unsigned int sdev_bflags; /* black/white flags as also found in * scsi_devinfo.[hc]. For now used only to * pass settings from slave_alloc to scsi * core. */ unsigned writeable:1; unsigned removable:1; unsigned changed:1; /* Data invalid due to media change */ unsigned busy:1; /* Used to prevent races */ unsigned lockable:1; /* Able to prevent media removal */ unsigned locked:1; /* Media removal disabled */ unsigned borken:1; /* Tell the Seagate driver to be * painfully slow on this device */ unsigned disconnect:1; /* can disconnect */ unsigned soft_reset:1; /* Uses soft reset option */ unsigned sdtr:1; /* Device supports SDTR messages */ unsigned wdtr:1; /* Device supports WDTR messages */ unsigned ppr:1; /* Device supports PPR messages */ 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 */ |
1da177e4c Linux-2.6.12-rc2 |
127 128 129 130 131 132 133 134 135 136 137 |
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 * because we did a bus reset. */ unsigned use_10_for_rw:1; /* first try 10-byte read / write */ unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */ unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */ unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */ unsigned use_192_bytes_for_3f:1; /* ask for 192 bytes from page 0x3f */ unsigned no_start_on_add:1; /* do not issue start on add */ unsigned allow_restart:1; /* issue START_UNIT in error handler */ |
c3c94c5a2 [SCSI] sd: implem... |
138 |
unsigned manage_start_stop:1; /* Let HLD (sd) manage start/stop */ |
d2886ea36 scsi: sd: optiona... |
139 |
unsigned start_stop_pwr_cond:1; /* Set power cond. in START_STOP_UNIT */ |
1da177e4c Linux-2.6.12-rc2 |
140 141 142 |
unsigned no_uld_attach:1; /* disable connecting to upper level drivers */ unsigned select_no_atn:1; unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */ |
61bf54b71 USB Storage: indi... |
143 |
unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */ |
1da177e4c Linux-2.6.12-rc2 |
144 |
unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */ |
18351070b Re-introduce "[SC... |
145 146 |
unsigned last_sector_bug:1; /* do not use multisector accesses on SD_LAST_BUGGY_SECTORS */ |
8e04d8056 scsi/sr: add no_r... |
147 |
unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */ |
5ce524bdf scsi/sd: add a no... |
148 |
unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ |
860dc7360 [SCSI] fix async ... |
149 |
unsigned is_visible:1; /* is the device visible in sysfs */ |
1da177e4c Linux-2.6.12-rc2 |
150 |
|
a341cd0f6 SCSI: add asynchr... |
151 152 153 |
DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ struct list_head event_list; /* asserted events */ struct work_struct event_work; |
1da177e4c Linux-2.6.12-rc2 |
154 155 156 157 158 159 160 161 |
unsigned int device_blocked; /* Device returned QUEUE_FULL. */ unsigned int max_device_blocked; /* what device_blocked counts down from */ #define SCSI_DEFAULT_DEVICE_BLOCKED 3 atomic_t iorequest_cnt; atomic_t iodone_cnt; atomic_t ioerr_cnt; |
ee959b00c SCSI: convert str... |
162 163 |
struct device sdev_gendev, sdev_dev; |
1da177e4c Linux-2.6.12-rc2 |
164 |
|
ffedb4522 [SCSI] fix scsi p... |
165 |
struct execute_work ew; /* used to get process context on put */ |
9937a5e2f scsi: remove perf... |
166 |
struct work_struct requeue_work; |
ffedb4522 [SCSI] fix scsi p... |
167 |
|
a6a8d9f87 [SCSI] scsi_dh: a... |
168 |
struct scsi_dh_data *scsi_dh_data; |
1da177e4c Linux-2.6.12-rc2 |
169 170 171 |
enum scsi_device_state sdev_state; unsigned long sdev_data[0]; } __attribute__((aligned(sizeof(unsigned long)))); |
a6a8d9f87 [SCSI] scsi_dh: a... |
172 |
|
765cbc6da [SCSI] scsi_dh: I... |
173 174 175 176 |
struct scsi_dh_devlist { char *vendor; char *model; }; |
3ae31f6a7 [SCSI] scsi_dh: C... |
177 |
typedef void (*activate_complete)(void *, int); |
a6a8d9f87 [SCSI] scsi_dh: a... |
178 179 180 |
struct scsi_device_handler { /* Used by the infrastructure */ struct list_head list; /* list of scsi_device_handlers */ |
a6a8d9f87 [SCSI] scsi_dh: a... |
181 182 183 184 |
/* Filled by the hardware handler */ struct module *module; const char *name; |
765cbc6da [SCSI] scsi_dh: I... |
185 |
const struct scsi_dh_devlist *devlist; |
a6a8d9f87 [SCSI] scsi_dh: a... |
186 |
int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *); |
765cbc6da [SCSI] scsi_dh: I... |
187 188 |
int (*attach)(struct scsi_device *); void (*detach)(struct scsi_device *); |
3ae31f6a7 [SCSI] scsi_dh: C... |
189 |
int (*activate)(struct scsi_device *, activate_complete, void *); |
a6a8d9f87 [SCSI] scsi_dh: a... |
190 |
int (*prep_fn)(struct scsi_device *, struct request *); |
18ee70c9d [SCSI] scsi_dh: a... |
191 |
int (*set_params)(struct scsi_device *, const char *); |
6c3633d08 [SCSI] scsi_dh: I... |
192 |
bool (*match)(struct scsi_device *); |
a6a8d9f87 [SCSI] scsi_dh: a... |
193 194 195 196 |
}; struct scsi_dh_data { struct scsi_device_handler *scsi_dh; |
6c10db72c [SCSI] scsi_dh: R... |
197 198 |
struct scsi_device *sdev; struct kref kref; |
a6a8d9f87 [SCSI] scsi_dh: a... |
199 200 |
char buf[0]; }; |
1da177e4c Linux-2.6.12-rc2 |
201 202 203 |
#define to_scsi_device(d) \ container_of(d, struct scsi_device, sdev_gendev) #define class_to_sdev(d) \ |
ee959b00c SCSI: convert str... |
204 |
container_of(d, struct scsi_device, sdev_dev) |
1da177e4c Linux-2.6.12-rc2 |
205 |
#define transport_class_to_sdev(class_dev) \ |
ee959b00c SCSI: convert str... |
206 |
to_scsi_device(class_dev->parent) |
1da177e4c Linux-2.6.12-rc2 |
207 |
|
9ccfc756a [SCSI] move the m... |
208 209 |
#define sdev_printk(prefix, sdev, fmt, a...) \ dev_printk(prefix, &(sdev)->sdev_gendev, fmt, ##a) |
a4d04a4cd [SCSI] Make error... |
210 211 212 213 214 |
#define scmd_printk(prefix, scmd, fmt, a...) \ (scmd)->request->rq_disk ? \ sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \ (scmd)->request->rq_disk->disk_name, ##a) : \ sdev_printk(prefix, (scmd)->device, fmt, ##a) |
01d7b3b8d [SCSI] introduce ... |
215 |
|
ffedb4522 [SCSI] fix scsi p... |
216 |
enum scsi_target_state { |
643eb2d93 [SCSI] rework scs... |
217 218 |
STARGET_CREATED = 1, STARGET_RUNNING, |
ffedb4522 [SCSI] fix scsi p... |
219 220 |
STARGET_DEL, }; |
1da177e4c Linux-2.6.12-rc2 |
221 222 223 224 225 226 227 228 229 230 231 232 233 234 |
/* * scsi_target: representation of a scsi target, for now, this is only * used for single_lun devices. If no one has active IO to the target, * starget_sdev_user is NULL, else it points to the active sdev. */ struct scsi_target { struct scsi_device *starget_sdev_user; struct list_head siblings; struct list_head devices; struct device dev; unsigned int reap_ref; /* protected by the host lock */ unsigned int channel; unsigned int id; /* target id ... replace * scsi_device.id eventually */ |
1bfc5d9d5 [SCSI] Recognize ... |
235 |
unsigned int create:1; /* signal that it needs to be added */ |
25d7c363f [SCSI] move singl... |
236 237 238 |
unsigned int single_lun:1; /* Indicates we should only * allow I/O to one of the luns * for the device at a time. */ |
1bfc5d9d5 [SCSI] Recognize ... |
239 240 |
unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */ /* means no lun present */ |
f0c0a376d [SCSI] Add helper... |
241 242 243 244 245 246 247 248 249 250 |
/* commands actually active on LLD. protected by host lock. */ unsigned int target_busy; /* * LLDs should set this in the slave_alloc host template callout. * If set to zero then there is not limit. */ unsigned int can_queue; unsigned int target_blocked; unsigned int max_target_blocked; #define SCSI_DEFAULT_TARGET_BLOCKED 3 |
1bfc5d9d5 [SCSI] Recognize ... |
251 |
|
6f3a20242 [SCSI] allow REPO... |
252 |
char scsi_level; |
ffedb4522 [SCSI] fix scsi p... |
253 254 |
struct execute_work ew; enum scsi_target_state state; |
a283bd37d [SCSI] Add target... |
255 256 257 |
void *hostdata; /* available to low-level driver */ unsigned long starget_data[0]; /* for the transport */ /* starget_data must be the last element!!!! */ |
1da177e4c Linux-2.6.12-rc2 |
258 259 260 261 262 263 264 265 |
} __attribute__((aligned(sizeof(unsigned long)))); #define to_scsi_target(d) container_of(d, struct scsi_target, dev) static inline struct scsi_target *scsi_target(struct scsi_device *sdev) { return to_scsi_target(sdev->sdev_gendev.parent); } #define transport_class_to_starget(class_dev) \ |
ee959b00c SCSI: convert str... |
266 |
to_scsi_target(class_dev->parent) |
1da177e4c Linux-2.6.12-rc2 |
267 |
|
9ccfc756a [SCSI] move the m... |
268 269 |
#define starget_printk(prefix, starget, fmt, a...) \ dev_printk(prefix, &(starget)->dev, fmt, ##a) |
1da177e4c Linux-2.6.12-rc2 |
270 271 |
extern struct scsi_device *__scsi_add_device(struct Scsi_Host *, uint, uint, uint, void *hostdata); |
146f7262e [SCSI] Alter the ... |
272 273 |
extern int scsi_add_device(struct Scsi_Host *host, uint channel, uint target, uint lun); |
a6a8d9f87 [SCSI] scsi_dh: a... |
274 |
extern int scsi_register_device_handler(struct scsi_device_handler *scsi_dh); |
1da177e4c Linux-2.6.12-rc2 |
275 |
extern void scsi_remove_device(struct scsi_device *); |
a6a8d9f87 [SCSI] scsi_dh: a... |
276 |
extern int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh); |
1da177e4c Linux-2.6.12-rc2 |
277 278 279 280 281 282 283 284 285 286 287 288 289 |
extern int scsi_device_get(struct scsi_device *); extern void scsi_device_put(struct scsi_device *); extern struct scsi_device *scsi_device_lookup(struct Scsi_Host *, uint, uint, uint); extern struct scsi_device *__scsi_device_lookup(struct Scsi_Host *, uint, uint, uint); extern struct scsi_device *scsi_device_lookup_by_target(struct scsi_target *, uint); 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 *)); |
522939d45 esp_scsi: fix res... |
290 291 292 |
extern void __starget_for_each_device(struct scsi_target *, void *, void (*fn)(struct scsi_device *, void *)); |
1da177e4c Linux-2.6.12-rc2 |
293 294 295 296 297 298 |
/* only exposed to implement shost_for_each_device */ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, struct scsi_device *); /** |
3e082a910 [SCSI] Add abilit... |
299 300 301 |
* shost_for_each_device - iterate over all devices of a host * @sdev: the &struct scsi_device to use as a cursor * @shost: the &struct scsi_host to iterate over |
1da177e4c Linux-2.6.12-rc2 |
302 |
* |
3e082a910 [SCSI] Add abilit... |
303 304 305 |
* Iterator that returns each device attached to @shost. This loop * takes a reference on each device and releases it at the end. If * you break out of the loop, you must call scsi_device_put(sdev). |
1da177e4c Linux-2.6.12-rc2 |
306 307 308 309 310 311 312 |
*/ #define shost_for_each_device(sdev, shost) \ for ((sdev) = __scsi_iterate_devices((shost), NULL); \ (sdev); \ (sdev) = __scsi_iterate_devices((shost), (sdev))) /** |
3e082a910 [SCSI] Add abilit... |
313 314 315 |
* __shost_for_each_device - iterate over all devices of a host (UNLOCKED) * @sdev: the &struct scsi_device to use as a cursor * @shost: the &struct scsi_host to iterate over |
1da177e4c Linux-2.6.12-rc2 |
316 |
* |
3e082a910 [SCSI] Add abilit... |
317 318 319 |
* Iterator that returns each device attached to @shost. It does _not_ * take a reference on the scsi_device, so the whole loop must be * protected by shost->host_lock. |
1da177e4c Linux-2.6.12-rc2 |
320 |
* |
3e082a910 [SCSI] Add abilit... |
321 322 323 |
* Note: The only reason to use this is because you need to access the * device list in interrupt context. Otherwise you really want to use * shost_for_each_device instead. |
1da177e4c Linux-2.6.12-rc2 |
324 325 326 327 328 329 330 331 332 333 334 |
*/ #define __shost_for_each_device(sdev, shost) \ list_for_each_entry((sdev), &((shost)->__devices), siblings) extern void scsi_adjust_queue_depth(struct scsi_device *, int, int); extern int scsi_track_queue_full(struct scsi_device *, int); 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, |
1cf72699c [SCSI] convert th... |
335 |
int retries, struct scsi_mode_data *data, |
ea73a9f23 [SCSI] convert sd... |
336 |
struct scsi_sense_hdr *); |
5baba830e [SCSI] add scsi_m... |
337 338 339 340 341 |
extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp, int modepage, unsigned char *buffer, int len, int timeout, int retries, struct scsi_mode_data *data, struct scsi_sense_hdr *); |
1da177e4c Linux-2.6.12-rc2 |
342 |
extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout, |
001aac257 [SCSI] sd,sr: add... |
343 |
int retries, struct scsi_sense_hdr *sshdr); |
e3deec090 [SCSI] eliminate ... |
344 345 |
extern int scsi_get_vpd_page(struct scsi_device *, u8 page, unsigned char *buf, int buf_len); |
1da177e4c Linux-2.6.12-rc2 |
346 347 |
extern int scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state); |
a341cd0f6 SCSI: add asynchr... |
348 349 350 351 352 |
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); |
1da177e4c Linux-2.6.12-rc2 |
353 354 355 356 357 358 359 360 361 362 |
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 *); extern void scsi_target_resume(struct scsi_target *); extern void scsi_scan_target(struct device *parent, unsigned int channel, unsigned int id, unsigned int lun, int rescan); extern void scsi_target_reap(struct scsi_target *); extern void scsi_target_block(struct device *); extern void scsi_target_unblock(struct device *); extern void scsi_remove_target(struct device *); |
2f4701d82 [SCSI] add int_to... |
363 |
extern void int_to_scsilun(unsigned int, struct scsi_lun *); |
462b7859a [SCSI] zfcp: Repo... |
364 |
extern int scsilun_to_int(struct scsi_lun *); |
1da177e4c Linux-2.6.12-rc2 |
365 366 367 |
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 *); |
33aa687db [SCSI] convert SP... |
368 369 370 |
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, |
f4f4e47e4 [SCSI] add residu... |
371 |
int flag, int *resid); |
ea73a9f23 [SCSI] convert sd... |
372 373 |
extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, |
f4f4e47e4 [SCSI] add residu... |
374 375 |
struct scsi_sense_hdr *, int timeout, int retries, int *resid); |
33aa687db [SCSI] convert SP... |
376 |
|
bc4f24014 [SCSI] implement ... |
377 378 379 380 381 382 383 |
#ifdef CONFIG_PM_RUNTIME extern int scsi_autopm_get_device(struct scsi_device *); extern void scsi_autopm_put_device(struct scsi_device *); #else static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; } static inline void scsi_autopm_put_device(struct scsi_device *d) {} #endif /* CONFIG_PM_RUNTIME */ |
cb5d9e094 [PATCH] scsi: dev... |
384 |
static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev) |
e28482c5b [SCSI] add scsi_r... |
385 |
{ |
cb5d9e094 [PATCH] scsi: dev... |
386 |
return device_reprobe(&sdev->sdev_gendev); |
e28482c5b [SCSI] add scsi_r... |
387 |
} |
01d7b3b8d [SCSI] introduce ... |
388 389 390 391 392 393 394 395 396 397 398 399 |
static inline unsigned int sdev_channel(struct scsi_device *sdev) { return sdev->channel; } static inline unsigned int sdev_id(struct scsi_device *sdev) { return sdev->id; } #define scmd_id(scmd) sdev_id((scmd)->device) #define scmd_channel(scmd) sdev_channel((scmd)->device) |
0f1d87a2a [SCSI] add inline... |
400 401 402 |
/* * checks for positions of the SCSI state machine */ |
1da177e4c Linux-2.6.12-rc2 |
403 404 |
static inline int scsi_device_online(struct scsi_device *sdev) { |
0762a4824 [SCSI] Check for ... |
405 406 |
return (sdev->sdev_state != SDEV_OFFLINE && sdev->sdev_state != SDEV_DEL); |
1da177e4c Linux-2.6.12-rc2 |
407 |
} |
0f1d87a2a [SCSI] add inline... |
408 409 |
static inline int scsi_device_blocked(struct scsi_device *sdev) { |
6f4267e3b [SCSI] Update the... |
410 411 |
return sdev->sdev_state == SDEV_BLOCK || sdev->sdev_state == SDEV_CREATED_BLOCK; |
0f1d87a2a [SCSI] add inline... |
412 413 414 |
} static inline int scsi_device_created(struct scsi_device *sdev) { |
6f4267e3b [SCSI] Update the... |
415 416 |
return sdev->sdev_state == SDEV_CREATED || sdev->sdev_state == SDEV_CREATED_BLOCK; |
0f1d87a2a [SCSI] add inline... |
417 |
} |
1da177e4c Linux-2.6.12-rc2 |
418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 |
/* accessor functions for the SCSI parameters */ static inline int scsi_device_sync(struct scsi_device *sdev) { return sdev->sdtr; } static inline int scsi_device_wide(struct scsi_device *sdev) { return sdev->wdtr; } static inline int scsi_device_dt(struct scsi_device *sdev) { return sdev->ppr; } static inline int scsi_device_dt_only(struct scsi_device *sdev) { if (sdev->inquiry_len < 57) return 0; return (sdev->inquiry[56] & 0x0c) == 0x04; } static inline int scsi_device_ius(struct scsi_device *sdev) { if (sdev->inquiry_len < 57) return 0; return sdev->inquiry[56] & 0x01; } static inline int scsi_device_qas(struct scsi_device *sdev) { if (sdev->inquiry_len < 57) return 0; return sdev->inquiry[56] & 0x02; } |
b30c2fc11 [SCSI] scsi.h: ad... |
450 451 |
static inline int scsi_device_enclosure(struct scsi_device *sdev) { |
d1e12de80 [SCSI] ses: Avoid... |
452 |
return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1; |
b30c2fc11 [SCSI] scsi.h: ad... |
453 |
} |
d7b8bcb0a [SCSI] modalias f... |
454 |
|
7027ad72a [SCSI] Support de... |
455 456 |
static inline int scsi_device_protection(struct scsi_device *sdev) { |
d211f052f [SCSI] sd: fix US... |
457 |
return sdev->scsi_level > SCSI_2 && sdev->inquiry[5] & (1<<0); |
7027ad72a [SCSI] Support de... |
458 |
} |
d7c48feb3 [SCSI] scsi_dh_al... |
459 460 461 462 |
static inline int scsi_device_tpgs(struct scsi_device *sdev) { return sdev->inquiry ? (sdev->inquiry[5] >> 4) & 0x3 : 0; } |
d7b8bcb0a [SCSI] modalias f... |
463 464 465 |
#define MODULE_ALIAS_SCSI_DEVICE(type) \ MODULE_ALIAS("scsi:t-" __stringify(type) "*") #define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x" |
1da177e4c Linux-2.6.12-rc2 |
466 |
#endif /* _SCSI_SCSI_DEVICE_H */ |