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-rw-r--r--include/scsi/libiscsi.h6
-rw-r--r--include/scsi/libsas.h627
-rw-r--r--include/scsi/sas.h631
-rw-r--r--include/scsi/scsi.h16
-rw-r--r--include/scsi/scsi_cmnd.h14
-rw-r--r--include/scsi/scsi_host.h7
-rw-r--r--include/scsi/scsi_netlink.h87
-rw-r--r--include/scsi/scsi_netlink_fc.h71
-rw-r--r--include/scsi/scsi_tcq.h15
-rw-r--r--include/scsi/scsi_transport_fc.h80
-rw-r--r--include/scsi/scsi_transport_sas.h37
11 files changed, 1543 insertions, 48 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 41904f611d12..401192e56e50 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -102,6 +102,8 @@ struct iscsi_cmd_task {
102 uint32_t unsol_datasn; 102 uint32_t unsol_datasn;
103 int imm_count; /* imm-data (bytes) */ 103 int imm_count; /* imm-data (bytes) */
104 int unsol_count; /* unsolicited (bytes)*/ 104 int unsol_count; /* unsolicited (bytes)*/
105 /* offset in unsolicited stream (bytes); */
106 int unsol_offset;
105 int data_count; /* remaining Data-Out */ 107 int data_count; /* remaining Data-Out */
106 struct scsi_cmnd *sc; /* associated SCSI cmd*/ 108 struct scsi_cmnd *sc; /* associated SCSI cmd*/
107 int total_length; 109 int total_length;
@@ -110,6 +112,7 @@ struct iscsi_cmd_task {
110 112
111 /* state set/tested under session->lock */ 113 /* state set/tested under session->lock */
112 int state; 114 int state;
115 atomic_t refcount;
113 struct list_head running; /* running cmd list */ 116 struct list_head running; /* running cmd list */
114 void *dd_data; /* driver/transport data */ 117 void *dd_data; /* driver/transport data */
115}; 118};
@@ -290,8 +293,7 @@ extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
290extern int iscsi_check_assign_cmdsn(struct iscsi_session *, 293extern int iscsi_check_assign_cmdsn(struct iscsi_session *,
291 struct iscsi_nopin *); 294 struct iscsi_nopin *);
292extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *, 295extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *,
293 struct iscsi_data *hdr, 296 struct iscsi_data *hdr);
294 int transport_data_cnt);
295extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *, 297extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
296 char *, uint32_t); 298 char *, uint32_t);
297extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *, 299extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
new file mode 100644
index 000000000000..8e39982fc3db
--- /dev/null
+++ b/include/scsi/libsas.h
@@ -0,0 +1,627 @@
1/*
2 * SAS host prototypes and structures header file
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 */
25
26#ifndef _LIBSAS_H_
27#define _LIBSAS_H_
28
29
30#include <linux/timer.h>
31#include <linux/pci.h>
32#include <scsi/sas.h>
33#include <linux/list.h>
34#include <asm/semaphore.h>
35#include <scsi/scsi_device.h>
36#include <scsi/scsi_cmnd.h>
37#include <scsi/scsi_transport_sas.h>
38
39struct block_device;
40
41enum sas_class {
42 SAS,
43 EXPANDER
44};
45
46enum sas_phy_role {
47 PHY_ROLE_NONE = 0,
48 PHY_ROLE_TARGET = 0x40,
49 PHY_ROLE_INITIATOR = 0x80,
50};
51
52enum sas_phy_type {
53 PHY_TYPE_PHYSICAL,
54 PHY_TYPE_VIRTUAL
55};
56
57/* The events are mnemonically described in sas_dump.c
58 * so when updating/adding events here, please also
59 * update the other file too.
60 */
61enum ha_event {
62 HAE_RESET = 0U,
63 HA_NUM_EVENTS = 1,
64};
65
66enum port_event {
67 PORTE_BYTES_DMAED = 0U,
68 PORTE_BROADCAST_RCVD = 1,
69 PORTE_LINK_RESET_ERR = 2,
70 PORTE_TIMER_EVENT = 3,
71 PORTE_HARD_RESET = 4,
72 PORT_NUM_EVENTS = 5,
73};
74
75enum phy_event {
76 PHYE_LOSS_OF_SIGNAL = 0U,
77 PHYE_OOB_DONE = 1,
78 PHYE_OOB_ERROR = 2,
79 PHYE_SPINUP_HOLD = 3, /* hot plug SATA, no COMWAKE sent */
80 PHY_NUM_EVENTS = 4,
81};
82
83enum discover_event {
84 DISCE_DISCOVER_DOMAIN = 0U,
85 DISCE_REVALIDATE_DOMAIN = 1,
86 DISCE_PORT_GONE = 2,
87 DISC_NUM_EVENTS = 3,
88};
89
90/* ---------- Expander Devices ---------- */
91
92#define ETASK 0xFA
93
94#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
95#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\
96 attr)
97
98enum routing_attribute {
99 DIRECT_ROUTING,
100 SUBTRACTIVE_ROUTING,
101 TABLE_ROUTING,
102};
103
104enum ex_phy_state {
105 PHY_EMPTY,
106 PHY_VACANT,
107 PHY_NOT_PRESENT,
108 PHY_DEVICE_DISCOVERED
109};
110
111struct ex_phy {
112 int phy_id;
113
114 enum ex_phy_state phy_state;
115
116 enum sas_dev_type attached_dev_type;
117 enum sas_linkrate linkrate;
118
119 u8 attached_sata_host:1;
120 u8 attached_sata_dev:1;
121 u8 attached_sata_ps:1;
122
123 enum sas_proto attached_tproto;
124 enum sas_proto attached_iproto;
125
126 u8 attached_sas_addr[SAS_ADDR_SIZE];
127 u8 attached_phy_id;
128
129 u8 phy_change_count;
130 enum routing_attribute routing_attr;
131 u8 virtual:1;
132
133 int last_da_index;
134
135 struct sas_phy *phy;
136 struct sas_port *port;
137};
138
139struct expander_device {
140 struct list_head children;
141
142 u16 ex_change_count;
143 u16 max_route_indexes;
144 u8 num_phys;
145 u8 configuring:1;
146 u8 conf_route_table:1;
147 u8 enclosure_logical_id[8];
148
149 struct ex_phy *ex_phy;
150 struct sas_port *parent_port;
151};
152
153/* ---------- SATA device ---------- */
154enum ata_command_set {
155 ATA_COMMAND_SET = 0,
156 ATAPI_COMMAND_SET = 1,
157};
158
159struct sata_device {
160 enum ata_command_set command_set;
161 struct smp_resp rps_resp; /* report_phy_sata_resp */
162 __le16 *identify_device;
163 __le16 *identify_packet_device;
164
165 u8 port_no; /* port number, if this is a PM (Port) */
166 struct list_head children; /* PM Ports if this is a PM */
167};
168
169/* ---------- Domain device ---------- */
170struct domain_device {
171 enum sas_dev_type dev_type;
172
173 enum sas_linkrate linkrate;
174 enum sas_linkrate min_linkrate;
175 enum sas_linkrate max_linkrate;
176
177 int pathways;
178
179 struct domain_device *parent;
180 struct list_head siblings; /* devices on the same level */
181 struct asd_sas_port *port; /* shortcut to root of the tree */
182
183 struct list_head dev_list_node;
184
185 enum sas_proto iproto;
186 enum sas_proto tproto;
187
188 struct sas_rphy *rphy;
189
190 u8 sas_addr[SAS_ADDR_SIZE];
191 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
192
193 u8 frame_rcvd[32];
194
195 union {
196 struct expander_device ex_dev;
197 struct sata_device sata_dev; /* STP & directly attached */
198 };
199
200 void *lldd_dev;
201};
202
203struct sas_discovery {
204 spinlock_t disc_event_lock;
205 struct work_struct disc_work[DISC_NUM_EVENTS];
206 unsigned long pending;
207 u8 fanout_sas_addr[8];
208 u8 eeds_a[8];
209 u8 eeds_b[8];
210 int max_level;
211};
212
213
214/* The port struct is Class:RW, driver:RO */
215struct asd_sas_port {
216/* private: */
217 struct completion port_gone_completion;
218
219 struct sas_discovery disc;
220 struct domain_device *port_dev;
221 spinlock_t dev_list_lock;
222 struct list_head dev_list;
223 enum sas_linkrate linkrate;
224
225 struct sas_phy *phy;
226 struct work_struct work;
227
228/* public: */
229 int id;
230
231 enum sas_class class;
232 u8 sas_addr[SAS_ADDR_SIZE];
233 u8 attached_sas_addr[SAS_ADDR_SIZE];
234 enum sas_proto iproto;
235 enum sas_proto tproto;
236
237 enum sas_oob_mode oob_mode;
238
239 spinlock_t phy_list_lock;
240 struct list_head phy_list;
241 int num_phys;
242 u32 phy_mask;
243
244 struct sas_ha_struct *ha;
245
246 struct sas_port *port;
247
248 void *lldd_port; /* not touched by the sas class code */
249};
250
251/* The phy pretty much is controlled by the LLDD.
252 * The class only reads those fields.
253 */
254struct asd_sas_phy {
255/* private: */
256 /* protected by ha->event_lock */
257 struct work_struct port_events[PORT_NUM_EVENTS];
258 struct work_struct phy_events[PHY_NUM_EVENTS];
259
260 unsigned long port_events_pending;
261 unsigned long phy_events_pending;
262
263 int error;
264
265 struct sas_phy *phy;
266
267/* public: */
268 /* The following are class:RO, driver:R/W */
269 int enabled; /* must be set */
270
271 int id; /* must be set */
272 enum sas_class class;
273 enum sas_proto iproto;
274 enum sas_proto tproto;
275
276 enum sas_phy_type type;
277 enum sas_phy_role role;
278 enum sas_oob_mode oob_mode;
279 enum sas_linkrate linkrate;
280
281 u8 *sas_addr; /* must be set */
282 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
283
284 spinlock_t frame_rcvd_lock;
285 u8 *frame_rcvd; /* must be set */
286 int frame_rcvd_size;
287
288 spinlock_t sas_prim_lock;
289 u32 sas_prim;
290
291 struct list_head port_phy_el; /* driver:RO */
292 struct asd_sas_port *port; /* Class:RW, driver: RO */
293
294 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
295
296 void *lldd_phy; /* not touched by the sas_class_code */
297};
298
299struct scsi_core {
300 struct Scsi_Host *shost;
301
302 spinlock_t task_queue_lock;
303 struct list_head task_queue;
304 int task_queue_size;
305
306 struct semaphore queue_thread_sema;
307 int queue_thread_kill;
308};
309
310struct sas_ha_struct {
311/* private: */
312 spinlock_t event_lock;
313 struct work_struct ha_events[HA_NUM_EVENTS];
314 unsigned long pending;
315
316 struct scsi_core core;
317
318/* public: */
319 char *sas_ha_name;
320 struct pci_dev *pcidev; /* should be set */
321 struct module *lldd_module; /* should be set */
322
323 u8 *sas_addr; /* must be set */
324 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
325
326 spinlock_t phy_port_lock;
327 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */
328 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
329 int num_phys; /* must be set, gt 0, static */
330
331 /* The class calls this to send a task for execution. */
332 int lldd_max_execute_num;
333 int lldd_queue_size;
334
335 /* LLDD calls these to notify the class of an event. */
336 void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
337 void (*notify_port_event)(struct asd_sas_phy *, enum port_event);
338 void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
339
340 void *lldd_ha; /* not touched by sas class code */
341};
342
343#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
344
345static inline struct domain_device *
346starget_to_domain_dev(struct scsi_target *starget) {
347 return starget->hostdata;
348}
349
350static inline struct domain_device *
351sdev_to_domain_dev(struct scsi_device *sdev) {
352 return starget_to_domain_dev(sdev->sdev_target);
353}
354
355static inline struct domain_device *
356cmd_to_domain_dev(struct scsi_cmnd *cmd)
357{
358 return sdev_to_domain_dev(cmd->device);
359}
360
361void sas_hash_addr(u8 *hashed, const u8 *sas_addr);
362
363/* Before calling a notify event, LLDD should use this function
364 * when the link is severed (possibly from its tasklet).
365 * The idea is that the Class only reads those, while the LLDD,
366 * can R/W these (thus avoiding a race).
367 */
368static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
369{
370 phy->oob_mode = OOB_NOT_CONNECTED;
371 phy->linkrate = SAS_LINK_RATE_UNKNOWN;
372}
373
374/* ---------- Tasks ---------- */
375/*
376 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED |
377 exec_status | | |
378 ---------------------+---------------------+-----------------------+
379 SAM_... | X | |
380 DEV_NO_RESPONSE | X | X |
381 INTERRUPTED | X | |
382 QUEUE_FULL | | X |
383 DEVICE_UNKNOWN | | X |
384 SG_ERR | | X |
385 ---------------------+---------------------+-----------------------+
386 */
387
388enum service_response {
389 SAS_TASK_COMPLETE,
390 SAS_TASK_UNDELIVERED = -1,
391};
392
393enum exec_status {
394 SAM_GOOD = 0,
395 SAM_CHECK_COND = 2,
396 SAM_COND_MET = 4,
397 SAM_BUSY = 8,
398 SAM_INTERMEDIATE = 0x10,
399 SAM_IM_COND_MET = 0x12,
400 SAM_RESV_CONFLICT= 0x14,
401 SAM_TASK_SET_FULL= 0x28,
402 SAM_ACA_ACTIVE = 0x30,
403 SAM_TASK_ABORTED = 0x40,
404
405 SAS_DEV_NO_RESPONSE = 0x80,
406 SAS_DATA_UNDERRUN,
407 SAS_DATA_OVERRUN,
408 SAS_INTERRUPTED,
409 SAS_QUEUE_FULL,
410 SAS_DEVICE_UNKNOWN,
411 SAS_SG_ERR,
412 SAS_OPEN_REJECT,
413 SAS_OPEN_TO,
414 SAS_PROTO_RESPONSE,
415 SAS_PHY_DOWN,
416 SAS_NAK_R_ERR,
417 SAS_PENDING,
418 SAS_ABORTED_TASK,
419};
420
421/* When a task finishes with a response, the LLDD examines the
422 * response:
423 * - For an ATA task task_status_struct::stat is set to
424 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
425 * contents of struct ata_task_resp.
426 * - For SSP tasks, if no data is present or status/TMF response
427 * is valid, task_status_struct::stat is set. If data is present
428 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
429 * task_status_struct::buf_valid_size, and task_status_struct::stat is
430 * set to SAM_CHECK_COND.
431 *
432 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
433 * for ATA task.
434 *
435 * "frame_len" is the total frame length, which could be more or less
436 * than actually copied.
437 *
438 * Tasks ending with response, always set the residual field.
439 */
440struct ata_task_resp {
441 u16 frame_len;
442 u8 ending_fis[24]; /* dev to host or data-in */
443 u32 sstatus;
444 u32 serror;
445 u32 scontrol;
446 u32 sactive;
447};
448
449#define SAS_STATUS_BUF_SIZE 96
450
451struct task_status_struct {
452 enum service_response resp;
453 enum exec_status stat;
454 int buf_valid_size;
455
456 u8 buf[SAS_STATUS_BUF_SIZE];
457
458 u32 residual;
459 enum sas_open_rej_reason open_rej_reason;
460};
461
462/* ATA and ATAPI task queuable to a SAS LLDD.
463 */
464struct sas_ata_task {
465 struct host_to_dev_fis fis;
466 u8 atapi_packet[16]; /* 0 if not ATAPI task */
467
468 u8 retry_count; /* hardware retry, should be > 0 */
469
470 u8 dma_xfer:1; /* PIO:0 or DMA:1 */
471 u8 use_ncq:1;
472 u8 set_affil_pol:1;
473 u8 stp_affil_pol:1;
474
475 u8 device_control_reg_update:1;
476};
477
478struct sas_smp_task {
479 struct scatterlist smp_req;
480 struct scatterlist smp_resp;
481};
482
483enum task_attribute {
484 TASK_ATTR_SIMPLE = 0,
485 TASK_ATTR_HOQ = 1,
486 TASK_ATTR_ORDERED= 2,
487 TASK_ATTR_ACA = 4,
488};
489
490struct sas_ssp_task {
491 u8 retry_count; /* hardware retry, should be > 0 */
492
493 u8 LUN[8];
494 u8 enable_first_burst:1;
495 enum task_attribute task_attr;
496 u8 task_prio;
497 u8 cdb[16];
498};
499
500struct sas_task {
501 struct domain_device *dev;
502 struct list_head list;
503
504 spinlock_t task_state_lock;
505 unsigned task_state_flags;
506
507 enum sas_proto task_proto;
508
509 /* Used by the discovery code. */
510 struct timer_list timer;
511 struct completion completion;
512
513 union {
514 struct sas_ata_task ata_task;
515 struct sas_smp_task smp_task;
516 struct sas_ssp_task ssp_task;
517 };
518
519 struct scatterlist *scatter;
520 int num_scatter;
521 u32 total_xfer_len;
522 u8 data_dir:2; /* Use PCI_DMA_... */
523
524 struct task_status_struct task_status;
525 void (*task_done)(struct sas_task *);
526
527 void *lldd_task; /* for use by LLDDs */
528 void *uldd_task;
529};
530
531
532
533#define SAS_TASK_STATE_PENDING 1
534#define SAS_TASK_STATE_DONE 2
535#define SAS_TASK_STATE_ABORTED 4
536
537static inline struct sas_task *sas_alloc_task(unsigned long flags)
538{
539 extern kmem_cache_t *sas_task_cache;
540 struct sas_task *task = kmem_cache_alloc(sas_task_cache, flags);
541
542 if (task) {
543 memset(task, 0, sizeof(*task));
544 INIT_LIST_HEAD(&task->list);
545 spin_lock_init(&task->task_state_lock);
546 task->task_state_flags = SAS_TASK_STATE_PENDING;
547 init_timer(&task->timer);
548 init_completion(&task->completion);
549 }
550
551 return task;
552}
553
554static inline void sas_free_task(struct sas_task *task)
555{
556 if (task) {
557 extern kmem_cache_t *sas_task_cache;
558 BUG_ON(!list_empty(&task->list));
559 kmem_cache_free(sas_task_cache, task);
560 }
561}
562
563struct sas_domain_function_template {
564 /* The class calls these to notify the LLDD of an event. */
565 void (*lldd_port_formed)(struct asd_sas_phy *);
566 void (*lldd_port_deformed)(struct asd_sas_phy *);
567
568 /* The class calls these when a device is found or gone. */
569 int (*lldd_dev_found)(struct domain_device *);
570 void (*lldd_dev_gone)(struct domain_device *);
571
572 int (*lldd_execute_task)(struct sas_task *, int num,
573 unsigned long gfp_flags);
574
575 /* Task Management Functions. Must be called from process context. */
576 int (*lldd_abort_task)(struct sas_task *);
577 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
578 int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
579 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
580 int (*lldd_I_T_nexus_reset)(struct domain_device *);
581 int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
582 int (*lldd_query_task)(struct sas_task *);
583
584 /* Port and Adapter management */
585 int (*lldd_clear_nexus_port)(struct asd_sas_port *);
586 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
587
588 /* Phy management */
589 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
590};
591
592extern int sas_register_ha(struct sas_ha_struct *);
593extern int sas_unregister_ha(struct sas_ha_struct *);
594
595extern int sas_queuecommand(struct scsi_cmnd *,
596 void (*scsi_done)(struct scsi_cmnd *));
597extern int sas_target_alloc(struct scsi_target *);
598extern int sas_slave_alloc(struct scsi_device *);
599extern int sas_slave_configure(struct scsi_device *);
600extern void sas_slave_destroy(struct scsi_device *);
601extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
602extern int sas_change_queue_type(struct scsi_device *, int qt);
603extern int sas_bios_param(struct scsi_device *,
604 struct block_device *,
605 sector_t capacity, int *hsc);
606extern struct scsi_transport_template *
607sas_domain_attach_transport(struct sas_domain_function_template *);
608extern void sas_domain_release_transport(struct scsi_transport_template *);
609
610int sas_discover_root_expander(struct domain_device *);
611
612void sas_init_ex_attr(void);
613
614int sas_ex_revalidate_domain(struct domain_device *);
615
616void sas_unregister_domain_devices(struct asd_sas_port *port);
617void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
618int sas_discover_event(struct asd_sas_port *, enum discover_event ev);
619
620int sas_discover_sata(struct domain_device *);
621int sas_discover_end_dev(struct domain_device *);
622
623void sas_unregister_dev(struct domain_device *);
624
625void sas_init_dev(struct domain_device *);
626
627#endif /* _SASLIB_H_ */
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
new file mode 100644
index 000000000000..2f4b6afa34fc
--- /dev/null
+++ b/include/scsi/sas.h
@@ -0,0 +1,631 @@
1/*
2 * SAS structures and definitions header file
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 */
25
26#ifndef _SAS_H_
27#define _SAS_H_
28
29#include <linux/types.h>
30#include <asm/byteorder.h>
31
32#define SAS_ADDR_SIZE 8
33#define HASHED_SAS_ADDR_SIZE 3
34#define SAS_ADDR(_sa) ((unsigned long long) be64_to_cpu(*(__be64 *)(_sa)))
35
36#define SMP_REQUEST 0x40
37#define SMP_RESPONSE 0x41
38
39#define SSP_DATA 0x01
40#define SSP_XFER_RDY 0x05
41#define SSP_COMMAND 0x06
42#define SSP_RESPONSE 0x07
43#define SSP_TASK 0x16
44
45#define SMP_REPORT_GENERAL 0x00
46#define SMP_REPORT_MANUF_INFO 0x01
47#define SMP_READ_GPIO_REG 0x02
48#define SMP_DISCOVER 0x10
49#define SMP_REPORT_PHY_ERR_LOG 0x11
50#define SMP_REPORT_PHY_SATA 0x12
51#define SMP_REPORT_ROUTE_INFO 0x13
52#define SMP_WRITE_GPIO_REG 0x82
53#define SMP_CONF_ROUTE_INFO 0x90
54#define SMP_PHY_CONTROL 0x91
55#define SMP_PHY_TEST_FUNCTION 0x92
56
57#define SMP_RESP_FUNC_ACC 0x00
58#define SMP_RESP_FUNC_UNK 0x01
59#define SMP_RESP_FUNC_FAILED 0x02
60#define SMP_RESP_INV_FRM_LEN 0x03
61#define SMP_RESP_NO_PHY 0x10
62#define SMP_RESP_NO_INDEX 0x11
63#define SMP_RESP_PHY_NO_SATA 0x12
64#define SMP_RESP_PHY_UNK_OP 0x13
65#define SMP_RESP_PHY_UNK_TESTF 0x14
66#define SMP_RESP_PHY_TEST_INPROG 0x15
67#define SMP_RESP_PHY_VACANT 0x16
68
69/* SAM TMFs */
70#define TMF_ABORT_TASK 0x01
71#define TMF_ABORT_TASK_SET 0x02
72#define TMF_CLEAR_TASK_SET 0x04
73#define TMF_LU_RESET 0x08
74#define TMF_CLEAR_ACA 0x40
75#define TMF_QUERY_TASK 0x80
76
77/* SAS TMF responses */
78#define TMF_RESP_FUNC_COMPLETE 0x00
79#define TMF_RESP_INVALID_FRAME 0x02
80#define TMF_RESP_FUNC_ESUPP 0x04
81#define TMF_RESP_FUNC_FAILED 0x05
82#define TMF_RESP_FUNC_SUCC 0x08
83#define TMF_RESP_NO_LUN 0x09
84#define TMF_RESP_OVERLAPPED_TAG 0x0A
85
86enum sas_oob_mode {
87 OOB_NOT_CONNECTED,
88 SATA_OOB_MODE,
89 SAS_OOB_MODE
90};
91
92/* See sas_discover.c if you plan on changing these.
93 */
94enum sas_dev_type {
95 NO_DEVICE = 0, /* protocol */
96 SAS_END_DEV = 1, /* protocol */
97 EDGE_DEV = 2, /* protocol */
98 FANOUT_DEV = 3, /* protocol */
99 SAS_HA = 4,
100 SATA_DEV = 5,
101 SATA_PM = 7,
102 SATA_PM_PORT= 8,
103};
104
105/* Partly from IDENTIFY address frame. */
106enum sas_proto {
107 SATA_PROTO = 1,
108 SAS_PROTO_SMP = 2, /* protocol */
109 SAS_PROTO_STP = 4, /* protocol */
110 SAS_PROTO_SSP = 8, /* protocol */
111 SAS_PROTO_ALL = 0xE,
112};
113
114/* From the spec; local phys only */
115enum phy_func {
116 PHY_FUNC_NOP,
117 PHY_FUNC_LINK_RESET, /* Enables the phy */
118 PHY_FUNC_HARD_RESET,
119 PHY_FUNC_DISABLE,
120 PHY_FUNC_CLEAR_ERROR_LOG = 5,
121 PHY_FUNC_CLEAR_AFFIL,
122 PHY_FUNC_TX_SATA_PS_SIGNAL,
123 PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
124 PHY_FUNC_SET_LINK_RATE,
125};
126
127/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.
128 * Most of those are here for completeness.
129 */
130enum sas_prim {
131 SAS_PRIM_AIP_NORMAL = 1,
132 SAS_PRIM_AIP_R0 = 2,
133 SAS_PRIM_AIP_R1 = 3,
134 SAS_PRIM_AIP_R2 = 4,
135 SAS_PRIM_AIP_WC = 5,
136 SAS_PRIM_AIP_WD = 6,
137 SAS_PRIM_AIP_WP = 7,
138 SAS_PRIM_AIP_RWP = 8,
139
140 SAS_PRIM_BC_CH = 9,
141 SAS_PRIM_BC_RCH0 = 10,
142 SAS_PRIM_BC_RCH1 = 11,
143 SAS_PRIM_BC_R0 = 12,
144 SAS_PRIM_BC_R1 = 13,
145 SAS_PRIM_BC_R2 = 14,
146 SAS_PRIM_BC_R3 = 15,
147 SAS_PRIM_BC_R4 = 16,
148
149 SAS_PRIM_NOTIFY_ENSP= 17,
150 SAS_PRIM_NOTIFY_R0 = 18,
151 SAS_PRIM_NOTIFY_R1 = 19,
152 SAS_PRIM_NOTIFY_R2 = 20,
153
154 SAS_PRIM_CLOSE_CLAF = 21,
155 SAS_PRIM_CLOSE_NORM = 22,
156 SAS_PRIM_CLOSE_R0 = 23,
157 SAS_PRIM_CLOSE_R1 = 24,
158
159 SAS_PRIM_OPEN_RTRY = 25,
160 SAS_PRIM_OPEN_RJCT = 26,
161 SAS_PRIM_OPEN_ACPT = 27,
162
163 SAS_PRIM_DONE = 28,
164 SAS_PRIM_BREAK = 29,
165
166 SATA_PRIM_DMAT = 33,
167 SATA_PRIM_PMNAK = 34,
168 SATA_PRIM_PMACK = 35,
169 SATA_PRIM_PMREQ_S = 36,
170 SATA_PRIM_PMREQ_P = 37,
171 SATA_SATA_R_ERR = 38,
172};
173
174enum sas_open_rej_reason {
175 /* Abandon open */
176 SAS_OREJ_UNKNOWN = 0,
177 SAS_OREJ_BAD_DEST = 1,
178 SAS_OREJ_CONN_RATE = 2,
179 SAS_OREJ_EPROTO = 3,
180 SAS_OREJ_RESV_AB0 = 4,
181 SAS_OREJ_RESV_AB1 = 5,
182 SAS_OREJ_RESV_AB2 = 6,
183 SAS_OREJ_RESV_AB3 = 7,
184 SAS_OREJ_WRONG_DEST= 8,
185 SAS_OREJ_STP_NORES = 9,
186
187 /* Retry open */
188 SAS_OREJ_NO_DEST = 10,
189 SAS_OREJ_PATH_BLOCKED = 11,
190 SAS_OREJ_RSVD_CONT0 = 12,
191 SAS_OREJ_RSVD_CONT1 = 13,
192 SAS_OREJ_RSVD_INIT0 = 14,
193 SAS_OREJ_RSVD_INIT1 = 15,
194 SAS_OREJ_RSVD_STOP0 = 16,
195 SAS_OREJ_RSVD_STOP1 = 17,
196 SAS_OREJ_RSVD_RETRY = 18,
197};
198
199struct dev_to_host_fis {
200 u8 fis_type; /* 0x34 */
201 u8 flags;
202 u8 status;
203 u8 error;
204
205 u8 lbal;
206 union { u8 lbam; u8 byte_count_low; };
207 union { u8 lbah; u8 byte_count_high; };
208 u8 device;
209
210 u8 lbal_exp;
211 u8 lbam_exp;
212 u8 lbah_exp;
213 u8 _r_a;
214
215 union { u8 sector_count; u8 interrupt_reason; };
216 u8 sector_count_exp;
217 u8 _r_b;
218 u8 _r_c;
219
220 u32 _r_d;
221} __attribute__ ((packed));
222
223struct host_to_dev_fis {
224 u8 fis_type; /* 0x27 */
225 u8 flags;
226 u8 command;
227 u8 features;
228
229 u8 lbal;
230 union { u8 lbam; u8 byte_count_low; };
231 union { u8 lbah; u8 byte_count_high; };
232 u8 device;
233
234 u8 lbal_exp;
235 u8 lbam_exp;
236 u8 lbah_exp;
237 u8 features_exp;
238
239 union { u8 sector_count; u8 interrupt_reason; };
240 u8 sector_count_exp;
241 u8 _r_a;
242 u8 control;
243
244 u32 _r_b;
245} __attribute__ ((packed));
246
247/* Prefer to have code clarity over header file clarity.
248 */
249#ifdef __LITTLE_ENDIAN_BITFIELD
250struct sas_identify_frame {
251 /* Byte 0 */
252 u8 frame_type:4;
253 u8 dev_type:3;
254 u8 _un0:1;
255
256 /* Byte 1 */
257 u8 _un1;
258
259 /* Byte 2 */
260 union {
261 struct {
262 u8 _un20:1;
263 u8 smp_iport:1;
264 u8 stp_iport:1;
265 u8 ssp_iport:1;
266 u8 _un247:4;
267 };
268 u8 initiator_bits;
269 };
270
271 /* Byte 3 */
272 union {
273 struct {
274 u8 _un30:1;
275 u8 smp_tport:1;
276 u8 stp_tport:1;
277 u8 ssp_tport:1;
278 u8 _un347:4;
279 };
280 u8 target_bits;
281 };
282
283 /* Byte 4 - 11 */
284 u8 _un4_11[8];
285
286 /* Byte 12 - 19 */
287 u8 sas_addr[SAS_ADDR_SIZE];
288
289 /* Byte 20 */
290 u8 phy_id;
291
292 u8 _un21_27[7];
293
294 __be32 crc;
295} __attribute__ ((packed));
296
297struct ssp_frame_hdr {
298 u8 frame_type;
299 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
300 u8 _r_a;
301 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
302 __be16 _r_b;
303
304 u8 changing_data_ptr:1;
305 u8 retransmit:1;
306 u8 retry_data_frames:1;
307 u8 _r_c:5;
308
309 u8 num_fill_bytes:2;
310 u8 _r_d:6;
311
312 u32 _r_e;
313 __be16 tag;
314 __be16 tptt;
315 __be32 data_offs;
316} __attribute__ ((packed));
317
318struct ssp_response_iu {
319 u8 _r_a[10];
320
321 u8 datapres:2;
322 u8 _r_b:6;
323
324 u8 status;
325
326 u32 _r_c;
327
328 __be32 sense_data_len;
329 __be32 response_data_len;
330
331 u8 resp_data[0];
332 u8 sense_data[0];
333} __attribute__ ((packed));
334
335/* ---------- SMP ---------- */
336
337struct report_general_resp {
338 __be16 change_count;
339 __be16 route_indexes;
340 u8 _r_a;
341 u8 num_phys;
342
343 u8 conf_route_table:1;
344 u8 configuring:1;
345 u8 _r_b:6;
346
347 u8 _r_c;
348
349 u8 enclosure_logical_id[8];
350
351 u8 _r_d[12];
352} __attribute__ ((packed));
353
354struct discover_resp {
355 u8 _r_a[5];
356
357 u8 phy_id;
358 __be16 _r_b;
359
360 u8 _r_c:4;
361 u8 attached_dev_type:3;
362 u8 _r_d:1;
363
364 u8 linkrate:4;
365 u8 _r_e:4;
366
367 u8 attached_sata_host:1;
368 u8 iproto:3;
369 u8 _r_f:4;
370
371 u8 attached_sata_dev:1;
372 u8 tproto:3;
373 u8 _r_g:3;
374 u8 attached_sata_ps:1;
375
376 u8 sas_addr[8];
377 u8 attached_sas_addr[8];
378 u8 attached_phy_id;
379
380 u8 _r_h[7];
381
382 u8 hmin_linkrate:4;
383 u8 pmin_linkrate:4;
384 u8 hmax_linkrate:4;
385 u8 pmax_linkrate:4;
386
387 u8 change_count;
388
389 u8 pptv:4;
390 u8 _r_i:3;
391 u8 virtual:1;
392
393 u8 routing_attr:4;
394 u8 _r_j:4;
395
396 u8 conn_type;
397 u8 conn_el_index;
398 u8 conn_phy_link;
399
400 u8 _r_k[8];
401} __attribute__ ((packed));
402
403struct report_phy_sata_resp {
404 u8 _r_a[5];
405
406 u8 phy_id;
407 u8 _r_b;
408
409 u8 affil_valid:1;
410 u8 affil_supp:1;
411 u8 _r_c:6;
412
413 u32 _r_d;
414
415 u8 stp_sas_addr[8];
416
417 struct dev_to_host_fis fis;
418
419 u32 _r_e;
420
421 u8 affil_stp_ini_addr[8];
422
423 __be32 crc;
424} __attribute__ ((packed));
425
426struct smp_resp {
427 u8 frame_type;
428 u8 function;
429 u8 result;
430 u8 reserved;
431 union {
432 struct report_general_resp rg;
433 struct discover_resp disc;
434 struct report_phy_sata_resp rps;
435 };
436} __attribute__ ((packed));
437
438#elif defined(__BIG_ENDIAN_BITFIELD)
439struct sas_identify_frame {
440 /* Byte 0 */
441 u8 _un0:1;
442 u8 dev_type:3;
443 u8 frame_type:4;
444
445 /* Byte 1 */
446 u8 _un1;
447
448 /* Byte 2 */
449 union {
450 struct {
451 u8 _un247:4;
452 u8 ssp_iport:1;
453 u8 stp_iport:1;
454 u8 smp_iport:1;
455 u8 _un20:1;
456 };
457 u8 initiator_bits;
458 };
459
460 /* Byte 3 */
461 union {
462 struct {
463 u8 _un347:4;
464 u8 ssp_tport:1;
465 u8 stp_tport:1;
466 u8 smp_tport:1;
467 u8 _un30:1;
468 };
469 u8 target_bits;
470 };
471
472 /* Byte 4 - 11 */
473 u8 _un4_11[8];
474
475 /* Byte 12 - 19 */
476 u8 sas_addr[SAS_ADDR_SIZE];
477
478 /* Byte 20 */
479 u8 phy_id;
480
481 u8 _un21_27[7];
482
483 __be32 crc;
484} __attribute__ ((packed));
485
486struct ssp_frame_hdr {
487 u8 frame_type;
488 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
489 u8 _r_a;
490 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
491 __be16 _r_b;
492
493 u8 _r_c:5;
494 u8 retry_data_frames:1;
495 u8 retransmit:1;
496 u8 changing_data_ptr:1;
497
498 u8 _r_d:6;
499 u8 num_fill_bytes:2;
500
501 u32 _r_e;
502 __be16 tag;
503 __be16 tptt;
504 __be32 data_offs;
505} __attribute__ ((packed));
506
507struct ssp_response_iu {
508 u8 _r_a[10];
509
510 u8 _r_b:6;
511 u8 datapres:2;
512
513 u8 status;
514
515 u32 _r_c;
516
517 __be32 sense_data_len;
518 __be32 response_data_len;
519
520 u8 resp_data[0];
521 u8 sense_data[0];
522} __attribute__ ((packed));
523
524/* ---------- SMP ---------- */
525
526struct report_general_resp {
527 __be16 change_count;
528 __be16 route_indexes;
529 u8 _r_a;
530 u8 num_phys;
531
532 u8 _r_b:6;
533 u8 configuring:1;
534 u8 conf_route_table:1;
535
536 u8 _r_c;
537
538 u8 enclosure_logical_id[8];
539
540 u8 _r_d[12];
541} __attribute__ ((packed));
542
543struct discover_resp {
544 u8 _r_a[5];
545
546 u8 phy_id;
547 __be16 _r_b;
548
549 u8 _r_d:1;
550 u8 attached_dev_type:3;
551 u8 _r_c:4;
552
553 u8 _r_e:4;
554 u8 linkrate:4;
555
556 u8 _r_f:4;
557 u8 iproto:3;
558 u8 attached_sata_host:1;
559
560 u8 attached_sata_ps:1;
561 u8 _r_g:3;
562 u8 tproto:3;
563 u8 attached_sata_dev:1;
564
565 u8 sas_addr[8];
566 u8 attached_sas_addr[8];
567 u8 attached_phy_id;
568
569 u8 _r_h[7];
570
571 u8 pmin_linkrate:4;
572 u8 hmin_linkrate:4;
573 u8 pmax_linkrate:4;
574 u8 hmax_linkrate:4;
575
576 u8 change_count;
577
578 u8 virtual:1;
579 u8 _r_i:3;
580 u8 pptv:4;
581
582 u8 _r_j:4;
583 u8 routing_attr:4;
584
585 u8 conn_type;
586 u8 conn_el_index;
587 u8 conn_phy_link;
588
589 u8 _r_k[8];
590} __attribute__ ((packed));
591
592struct report_phy_sata_resp {
593 u8 _r_a[5];
594
595 u8 phy_id;
596 u8 _r_b;
597
598 u8 _r_c:6;
599 u8 affil_supp:1;
600 u8 affil_valid:1;
601
602 u32 _r_d;
603
604 u8 stp_sas_addr[8];
605
606 struct dev_to_host_fis fis;
607
608 u32 _r_e;
609
610 u8 affil_stp_ini_addr[8];
611
612 __be32 crc;
613} __attribute__ ((packed));
614
615struct smp_resp {
616 u8 frame_type;
617 u8 function;
618 u8 result;
619 u8 reserved;
620 union {
621 struct report_general_resp rg;
622 struct discover_resp disc;
623 struct report_phy_sata_resp rps;
624 };
625} __attribute__ ((packed));
626
627#else
628#error "Bitfield order not defined!"
629#endif
630
631#endif /* _SAS_H_ */
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index c60b8ff2f5e4..84a6d5fe0920 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -25,13 +25,6 @@ extern const unsigned char scsi_command_size[8];
25#define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7] 25#define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7]
26 26
27/* 27/*
28 * SCSI device types
29 */
30
31#define MAX_SCSI_DEVICE_CODE 15
32extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
33
34/*
35 * Special value for scanning to specify scanning or rescanning of all 28 * Special value for scanning to specify scanning or rescanning of all
36 * possible channels, (target) ids, or luns on a given shost. 29 * possible channels, (target) ids, or luns on a given shost.
37 */ 30 */
@@ -225,6 +218,9 @@ static inline int scsi_status_is_good(int status)
225#define TYPE_RBC 0x0e 218#define TYPE_RBC 0x0e
226#define TYPE_NO_LUN 0x7f 219#define TYPE_NO_LUN 0x7f
227 220
221/* Returns a human-readable name for the device */
222extern const char * scsi_device_type(unsigned type);
223
228/* 224/*
229 * standard mode-select header prepended to all mode-select commands 225 * standard mode-select header prepended to all mode-select commands
230 */ 226 */
@@ -433,4 +429,10 @@ struct scsi_lun {
433/* Used to obtain the PCI location of a device */ 429/* Used to obtain the PCI location of a device */
434#define SCSI_IOCTL_GET_PCI 0x5387 430#define SCSI_IOCTL_GET_PCI 0x5387
435 431
432/* Pull a u32 out of a SCSI message (using BE SCSI conventions) */
433static inline u32 scsi_to_u32(u8 *ptr)
434{
435 return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3];
436}
437
436#endif /* _SCSI_SCSI_H */ 438#endif /* _SCSI_SCSI_H */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 58e6444eebee..be117f812deb 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -118,20 +118,6 @@ struct scsi_cmnd {
118 unsigned long pid; /* Process ID, starts at 0. Unique per host. */ 118 unsigned long pid; /* Process ID, starts at 0. Unique per host. */
119}; 119};
120 120
121/*
122 * These are the values that scsi_cmd->state can take.
123 */
124#define SCSI_STATE_TIMEOUT 0x1000
125#define SCSI_STATE_FINISHED 0x1001
126#define SCSI_STATE_FAILED 0x1002
127#define SCSI_STATE_QUEUED 0x1003
128#define SCSI_STATE_UNUSED 0x1006
129#define SCSI_STATE_DISCONNECTING 0x1008
130#define SCSI_STATE_INITIALIZING 0x1009
131#define SCSI_STATE_BHQUEUE 0x100a
132#define SCSI_STATE_MLQUEUE 0x100b
133
134
135extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); 121extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t);
136extern void scsi_put_command(struct scsi_cmnd *); 122extern void scsi_put_command(struct scsi_cmnd *);
137extern void scsi_io_completion(struct scsi_cmnd *, unsigned int); 123extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index b3dd90f3e858..39c6f8cc20c3 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -16,6 +16,7 @@ struct scsi_target;
16struct Scsi_Host; 16struct Scsi_Host;
17struct scsi_host_cmd_pool; 17struct scsi_host_cmd_pool;
18struct scsi_transport_template; 18struct scsi_transport_template;
19struct blk_queue_tags;
19 20
20 21
21/* 22/*
@@ -466,6 +467,12 @@ struct Scsi_Host {
466 struct scsi_transport_template *transportt; 467 struct scsi_transport_template *transportt;
467 468
468 /* 469 /*
470 * area to keep a shared tag map (if needed, will be
471 * NULL if not)
472 */
473 struct blk_queue_tag *bqt;
474
475 /*
469 * The following two fields are protected with host_lock; 476 * The following two fields are protected with host_lock;
470 * however, eh routines can safely access during eh processing 477 * however, eh routines can safely access during eh processing
471 * without acquiring the lock. 478 * without acquiring the lock.
diff --git a/include/scsi/scsi_netlink.h b/include/scsi/scsi_netlink.h
new file mode 100644
index 000000000000..8c1470cc8209
--- /dev/null
+++ b/include/scsi/scsi_netlink.h
@@ -0,0 +1,87 @@
1/*
2 * SCSI Transport Netlink Interface
3 * Used for the posting of outbound SCSI transport events
4 *
5 * Copyright (C) 2006 James Smart, Emulex Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22#ifndef SCSI_NETLINK_H
23#define SCSI_NETLINK_H
24
25/*
26 * This file intended to be included by both kernel and user space
27 */
28
29/* Single Netlink Message type to send all SCSI Transport messages */
30#define SCSI_TRANSPORT_MSG NLMSG_MIN_TYPE + 1
31
32/* SCSI Transport Broadcast Groups */
33 /* leaving groups 0 and 1 unassigned */
34#define SCSI_NL_GRP_FC_EVENTS (1<<2) /* Group 2 */
35#define SCSI_NL_GRP_CNT 3
36
37
38/* SCSI_TRANSPORT_MSG event message header */
39struct scsi_nl_hdr {
40 uint8_t version;
41 uint8_t transport;
42 uint16_t magic;
43 uint16_t msgtype;
44 uint16_t msglen;
45} __attribute__((aligned(sizeof(uint64_t))));
46
47/* scsi_nl_hdr->version value */
48#define SCSI_NL_VERSION 1
49
50/* scsi_nl_hdr->magic value */
51#define SCSI_NL_MAGIC 0xA1B2
52
53/* scsi_nl_hdr->transport value */
54#define SCSI_NL_TRANSPORT 0
55#define SCSI_NL_TRANSPORT_FC 1
56#define SCSI_NL_MAX_TRANSPORTS 2
57
58/* scsi_nl_hdr->msgtype values are defined in each transport */
59
60
61/*
62 * Vendor ID:
63 * If transports post vendor-unique events, they must pass a well-known
64 * 32-bit vendor identifier. This identifier consists of 8 bits indicating
65 * the "type" of identifier contained, and 24 bits of id data.
66 *
67 * Identifiers for each type:
68 * PCI : ID data is the 16 bit PCI Registered Vendor ID
69 */
70#define SCSI_NL_VID_TYPE_SHIFT 56
71#define SCSI_NL_VID_TYPE_MASK ((u64)0xFF << SCSI_NL_VID_TYPE_SHIFT)
72#define SCSI_NL_VID_TYPE_PCI ((u64)0x01 << SCSI_NL_VID_TYPE_SHIFT)
73#define SCSI_NL_VID_ID_MASK (~ SCSI_NL_VID_TYPE_MASK)
74
75
76#define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen) \
77 { \
78 (hdr)->version = SCSI_NL_VERSION; \
79 (hdr)->transport = t; \
80 (hdr)->magic = SCSI_NL_MAGIC; \
81 (hdr)->msgtype = mtype; \
82 (hdr)->msglen = mlen; \
83 }
84
85
86#endif /* SCSI_NETLINK_H */
87
diff --git a/include/scsi/scsi_netlink_fc.h b/include/scsi/scsi_netlink_fc.h
new file mode 100644
index 000000000000..cbf76e479761
--- /dev/null
+++ b/include/scsi/scsi_netlink_fc.h
@@ -0,0 +1,71 @@
1/*
2 * FC Transport Netlink Interface
3 *
4 * Copyright (C) 2006 James Smart, Emulex Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21#ifndef SCSI_NETLINK_FC_H
22#define SCSI_NETLINK_FC_H
23
24#include <scsi/scsi_netlink.h>
25
26/*
27 * This file intended to be included by both kernel and user space
28 */
29
30/*
31 * FC Transport Message Types
32 */
33 /* kernel -> user */
34#define FC_NL_ASYNC_EVENT 0x0100
35 /* user -> kernel */
36/* none */
37
38
39/*
40 * Message Structures :
41 */
42
43/* macro to round up message lengths to 8byte boundary */
44#define FC_NL_MSGALIGN(len) (((len) + 7) & ~7)
45
46
47/*
48 * FC Transport Broadcast Event Message :
49 * FC_NL_ASYNC_EVENT
50 *
51 * Note: if Vendor Unique message, &event_data will be start of
52 * vendor unique payload, and the length of the payload is
53 * per event_datalen
54 *
55 * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
56 * formatting requirements specified in scsi_netlink.h
57 */
58struct fc_nl_event {
59 struct scsi_nl_hdr snlh; /* must be 1st element ! */
60 uint64_t seconds;
61 uint64_t vendor_id;
62 uint16_t host_no;
63 uint16_t event_datalen;
64 uint32_t event_num;
65 uint32_t event_code;
66 uint32_t event_data;
67} __attribute__((aligned(sizeof(uint64_t))));
68
69
70#endif /* SCSI_NETLINK_FC_H */
71
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index e47e36a4ef49..d04d05adfa9b 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -4,6 +4,7 @@
4#include <linux/blkdev.h> 4#include <linux/blkdev.h>
5#include <scsi/scsi_cmnd.h> 5#include <scsi/scsi_cmnd.h>
6#include <scsi/scsi_device.h> 6#include <scsi/scsi_device.h>
7#include <scsi/scsi_host.h>
7 8
8 9
9#define MSG_SIMPLE_TAG 0x20 10#define MSG_SIMPLE_TAG 0x20
@@ -66,7 +67,8 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
66 return; 67 return;
67 68
68 if (!blk_queue_tagged(sdev->request_queue)) 69 if (!blk_queue_tagged(sdev->request_queue))
69 blk_queue_init_tags(sdev->request_queue, depth, NULL); 70 blk_queue_init_tags(sdev->request_queue, depth,
71 sdev->host->bqt);
70 72
71 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); 73 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
72} 74}
@@ -131,4 +133,15 @@ static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag)
131 return sdev->current_cmnd; 133 return sdev->current_cmnd;
132} 134}
133 135
136/**
137 * scsi_init_shared_tag_map - create a shared tag map
138 * @shost: the host to share the tag map among all devices
139 * @depth: the total depth of the map
140 */
141static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth)
142{
143 shost->bqt = blk_init_tags(depth);
144 return shost->bqt ? 0 : -ENOMEM;
145}
146
134#endif /* _SCSI_SCSI_TCQ_H */ 147#endif /* _SCSI_SCSI_TCQ_H */
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 6d28b0317657..fd352323378b 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -29,6 +29,7 @@
29 29
30#include <linux/sched.h> 30#include <linux/sched.h>
31#include <scsi/scsi.h> 31#include <scsi/scsi.h>
32#include <scsi/scsi_netlink.h>
32 33
33struct scsi_transport_template; 34struct scsi_transport_template;
34 35
@@ -194,6 +195,7 @@ struct fc_rport { /* aka fc_starget_attrs */
194 u32 roles; 195 u32 roles;
195 enum fc_port_state port_state; /* Will only be ONLINE or UNKNOWN */ 196 enum fc_port_state port_state; /* Will only be ONLINE or UNKNOWN */
196 u32 scsi_target_id; 197 u32 scsi_target_id;
198 u32 fast_io_fail_tmo;
197 199
198 /* exported data */ 200 /* exported data */
199 void *dd_data; /* Used for driver-specific storage */ 201 void *dd_data; /* Used for driver-specific storage */
@@ -206,6 +208,7 @@ struct fc_rport { /* aka fc_starget_attrs */
206 struct device dev; 208 struct device dev;
207 struct work_struct dev_loss_work; 209 struct work_struct dev_loss_work;
208 struct work_struct scan_work; 210 struct work_struct scan_work;
211 struct work_struct fail_io_work;
209 struct work_struct stgt_delete_work; 212 struct work_struct stgt_delete_work;
210 struct work_struct rport_delete_work; 213 struct work_struct rport_delete_work;
211} __attribute__((aligned(sizeof(unsigned long)))); 214} __attribute__((aligned(sizeof(unsigned long))));
@@ -284,6 +287,30 @@ struct fc_host_statistics {
284 287
285 288
286/* 289/*
290 * FC Event Codes - Polled and Async, following FC HBAAPI v2.0 guidelines
291 */
292
293/*
294 * fc_host_event_code: If you alter this, you also need to alter
295 * scsi_transport_fc.c (for the ascii descriptions).
296 */
297enum fc_host_event_code {
298 FCH_EVT_LIP = 0x1,
299 FCH_EVT_LINKUP = 0x2,
300 FCH_EVT_LINKDOWN = 0x3,
301 FCH_EVT_LIPRESET = 0x4,
302 FCH_EVT_RSCN = 0x5,
303 FCH_EVT_ADAPTER_CHANGE = 0x103,
304 FCH_EVT_PORT_UNKNOWN = 0x200,
305 FCH_EVT_PORT_OFFLINE = 0x201,
306 FCH_EVT_PORT_ONLINE = 0x202,
307 FCH_EVT_PORT_FABRIC = 0x204,
308 FCH_EVT_LINK_UNKNOWN = 0x500,
309 FCH_EVT_VENDOR_UNIQUE = 0xffff,
310};
311
312
313/*
287 * FC Local Port (Host) Attributes 314 * FC Local Port (Host) Attributes
288 * 315 *
289 * Attributes are based on HBAAPI V2.0 definitions. 316 * Attributes are based on HBAAPI V2.0 definitions.
@@ -312,7 +339,6 @@ struct fc_host_attrs {
312 u64 permanent_port_name; 339 u64 permanent_port_name;
313 u32 supported_classes; 340 u32 supported_classes;
314 u8 supported_fc4s[FC_FC4_LIST_SIZE]; 341 u8 supported_fc4s[FC_FC4_LIST_SIZE];
315 char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
316 u32 supported_speeds; 342 u32 supported_speeds;
317 u32 maxframe_size; 343 u32 maxframe_size;
318 char serial_number[FC_SERIAL_NUMBER_SIZE]; 344 char serial_number[FC_SERIAL_NUMBER_SIZE];
@@ -324,6 +350,8 @@ struct fc_host_attrs {
324 u8 active_fc4s[FC_FC4_LIST_SIZE]; 350 u8 active_fc4s[FC_FC4_LIST_SIZE];
325 u32 speed; 351 u32 speed;
326 u64 fabric_name; 352 u64 fabric_name;
353 char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
354 char system_hostname[FC_SYMBOLIC_NAME_SIZE];
327 355
328 /* Private (Transport-managed) Attributes */ 356 /* Private (Transport-managed) Attributes */
329 enum fc_tgtid_binding_type tgtid_bind_type; 357 enum fc_tgtid_binding_type tgtid_bind_type;
@@ -354,8 +382,6 @@ struct fc_host_attrs {
354 (((struct fc_host_attrs *)(x)->shost_data)->supported_classes) 382 (((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
355#define fc_host_supported_fc4s(x) \ 383#define fc_host_supported_fc4s(x) \
356 (((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s) 384 (((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
357#define fc_host_symbolic_name(x) \
358 (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
359#define fc_host_supported_speeds(x) \ 385#define fc_host_supported_speeds(x) \
360 (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds) 386 (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
361#define fc_host_maxframe_size(x) \ 387#define fc_host_maxframe_size(x) \
@@ -374,6 +400,10 @@ struct fc_host_attrs {
374 (((struct fc_host_attrs *)(x)->shost_data)->speed) 400 (((struct fc_host_attrs *)(x)->shost_data)->speed)
375#define fc_host_fabric_name(x) \ 401#define fc_host_fabric_name(x) \
376 (((struct fc_host_attrs *)(x)->shost_data)->fabric_name) 402 (((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
403#define fc_host_symbolic_name(x) \
404 (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
405#define fc_host_system_hostname(x) \
406 (((struct fc_host_attrs *)(x)->shost_data)->system_hostname)
377#define fc_host_tgtid_bind_type(x) \ 407#define fc_host_tgtid_bind_type(x) \
378 (((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type) 408 (((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
379#define fc_host_rports(x) \ 409#define fc_host_rports(x) \
@@ -409,12 +439,17 @@ struct fc_function_template {
409 void (*get_host_active_fc4s)(struct Scsi_Host *); 439 void (*get_host_active_fc4s)(struct Scsi_Host *);
410 void (*get_host_speed)(struct Scsi_Host *); 440 void (*get_host_speed)(struct Scsi_Host *);
411 void (*get_host_fabric_name)(struct Scsi_Host *); 441 void (*get_host_fabric_name)(struct Scsi_Host *);
442 void (*get_host_symbolic_name)(struct Scsi_Host *);
443 void (*set_host_system_hostname)(struct Scsi_Host *);
412 444
413 struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *); 445 struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
414 void (*reset_fc_host_stats)(struct Scsi_Host *); 446 void (*reset_fc_host_stats)(struct Scsi_Host *);
415 447
416 int (*issue_fc_host_lip)(struct Scsi_Host *); 448 int (*issue_fc_host_lip)(struct Scsi_Host *);
417 449
450 void (*dev_loss_tmo_callbk)(struct fc_rport *);
451 void (*terminate_rport_io)(struct fc_rport *);
452
418 /* allocation lengths for host-specific data */ 453 /* allocation lengths for host-specific data */
419 u32 dd_fcrport_size; 454 u32 dd_fcrport_size;
420 455
@@ -445,7 +480,6 @@ struct fc_function_template {
445 unsigned long show_host_permanent_port_name:1; 480 unsigned long show_host_permanent_port_name:1;
446 unsigned long show_host_supported_classes:1; 481 unsigned long show_host_supported_classes:1;
447 unsigned long show_host_supported_fc4s:1; 482 unsigned long show_host_supported_fc4s:1;
448 unsigned long show_host_symbolic_name:1;
449 unsigned long show_host_supported_speeds:1; 483 unsigned long show_host_supported_speeds:1;
450 unsigned long show_host_maxframe_size:1; 484 unsigned long show_host_maxframe_size:1;
451 unsigned long show_host_serial_number:1; 485 unsigned long show_host_serial_number:1;
@@ -456,6 +490,8 @@ struct fc_function_template {
456 unsigned long show_host_active_fc4s:1; 490 unsigned long show_host_active_fc4s:1;
457 unsigned long show_host_speed:1; 491 unsigned long show_host_speed:1;
458 unsigned long show_host_fabric_name:1; 492 unsigned long show_host_fabric_name:1;
493 unsigned long show_host_symbolic_name:1;
494 unsigned long show_host_system_hostname:1;
459}; 495};
460 496
461 497
@@ -491,6 +527,25 @@ fc_remote_port_chkready(struct fc_rport *rport)
491 return result; 527 return result;
492} 528}
493 529
530static inline u64 wwn_to_u64(u8 *wwn)
531{
532 return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
533 (u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
534 (u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
535 (u64)wwn[6] << 8 | (u64)wwn[7];
536}
537
538static inline void u64_to_wwn(u64 inm, u8 *wwn)
539{
540 wwn[0] = (inm >> 56) & 0xff;
541 wwn[1] = (inm >> 48) & 0xff;
542 wwn[2] = (inm >> 40) & 0xff;
543 wwn[3] = (inm >> 32) & 0xff;
544 wwn[4] = (inm >> 24) & 0xff;
545 wwn[5] = (inm >> 16) & 0xff;
546 wwn[6] = (inm >> 8) & 0xff;
547 wwn[7] = inm & 0xff;
548}
494 549
495struct scsi_transport_template *fc_attach_transport( 550struct scsi_transport_template *fc_attach_transport(
496 struct fc_function_template *); 551 struct fc_function_template *);
@@ -501,13 +556,14 @@ struct fc_rport *fc_remote_port_add(struct Scsi_Host *shost,
501void fc_remote_port_delete(struct fc_rport *rport); 556void fc_remote_port_delete(struct fc_rport *rport);
502void fc_remote_port_rolechg(struct fc_rport *rport, u32 roles); 557void fc_remote_port_rolechg(struct fc_rport *rport, u32 roles);
503int scsi_is_fc_rport(const struct device *); 558int scsi_is_fc_rport(const struct device *);
504 559u32 fc_get_event_number(void);
505static inline u64 wwn_to_u64(u8 *wwn) 560void fc_host_post_event(struct Scsi_Host *shost, u32 event_number,
506{ 561 enum fc_host_event_code event_code, u32 event_data);
507 return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 | 562void fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
508 (u64)wwn[2] << 40 | (u64)wwn[3] << 32 | 563 u32 data_len, char * data_buf, u64 vendor_id);
509 (u64)wwn[4] << 24 | (u64)wwn[5] << 16 | 564 /* Note: when specifying vendor_id to fc_host_post_vendor_event()
510 (u64)wwn[6] << 8 | (u64)wwn[7]; 565 * be sure to read the Vendor Type and ID formatting requirements
511} 566 * specified in scsi_netlink.h
567 */
512 568
513#endif /* SCSI_TRANSPORT_FC_H */ 569#endif /* SCSI_TRANSPORT_FC_H */
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index 6cc2314098cf..53024377f3b8 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -24,15 +24,23 @@ enum sas_protocol {
24}; 24};
25 25
26enum sas_linkrate { 26enum sas_linkrate {
27 SAS_LINK_RATE_UNKNOWN, 27 /* These Values are defined in the SAS standard */
28 SAS_PHY_DISABLED, 28 SAS_LINK_RATE_UNKNOWN = 0,
29 SAS_LINK_RATE_FAILED, 29 SAS_PHY_DISABLED = 1,
30 SAS_SATA_SPINUP_HOLD, 30 SAS_PHY_RESET_PROBLEM = 2,
31 SAS_SATA_PORT_SELECTOR, 31 SAS_SATA_SPINUP_HOLD = 3,
32 SAS_LINK_RATE_1_5_GBPS, 32 SAS_SATA_PORT_SELECTOR = 4,
33 SAS_LINK_RATE_3_0_GBPS, 33 SAS_PHY_RESET_IN_PROGRESS = 5,
34 SAS_LINK_RATE_6_0_GBPS, 34 SAS_LINK_RATE_1_5_GBPS = 8,
35 SAS_LINK_VIRTUAL, 35 SAS_LINK_RATE_G1 = SAS_LINK_RATE_1_5_GBPS,
36 SAS_LINK_RATE_3_0_GBPS = 9,
37 SAS_LINK_RATE_G2 = SAS_LINK_RATE_3_0_GBPS,
38 SAS_LINK_RATE_6_0_GBPS = 10,
39 /* These are virtual to the transport class and may never
40 * be signalled normally since the standard defined field
41 * is only 4 bits */
42 SAS_LINK_RATE_FAILED = 0x10,
43 SAS_PHY_VIRTUAL = 0x11,
36}; 44};
37 45
38struct sas_identify { 46struct sas_identify {
@@ -57,9 +65,6 @@ struct sas_phy {
57 enum sas_linkrate maximum_linkrate_hw; 65 enum sas_linkrate maximum_linkrate_hw;
58 enum sas_linkrate maximum_linkrate; 66 enum sas_linkrate maximum_linkrate;
59 67
60 /* internal state */
61 unsigned int local_attached : 1;
62
63 /* link error statistics */ 68 /* link error statistics */
64 u32 invalid_dword_count; 69 u32 invalid_dword_count;
65 u32 running_disparity_error_count; 70 u32 running_disparity_error_count;
@@ -145,12 +150,18 @@ struct sas_port {
145#define transport_class_to_sas_port(cdev) \ 150#define transport_class_to_sas_port(cdev) \
146 dev_to_sas_port((cdev)->dev) 151 dev_to_sas_port((cdev)->dev)
147 152
153struct sas_phy_linkrates {
154 enum sas_linkrate maximum_linkrate;
155 enum sas_linkrate minimum_linkrate;
156};
157
148/* The functions by which the transport class and the driver communicate */ 158/* The functions by which the transport class and the driver communicate */
149struct sas_function_template { 159struct sas_function_template {
150 int (*get_linkerrors)(struct sas_phy *); 160 int (*get_linkerrors)(struct sas_phy *);
151 int (*get_enclosure_identifier)(struct sas_rphy *, u64 *); 161 int (*get_enclosure_identifier)(struct sas_rphy *, u64 *);
152 int (*get_bay_identifier)(struct sas_rphy *); 162 int (*get_bay_identifier)(struct sas_rphy *);
153 int (*phy_reset)(struct sas_phy *, int); 163 int (*phy_reset)(struct sas_phy *, int);
164 int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *);
154}; 165};
155 166
156 167
@@ -196,4 +207,6 @@ scsi_is_sas_expander_device(struct device *dev)
196 rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE; 207 rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE;
197} 208}
198 209
210#define scsi_is_sas_phy_local(phy) scsi_is_host_device((phy)->dev.parent)
211
199#endif /* SCSI_TRANSPORT_SAS_H */ 212#endif /* SCSI_TRANSPORT_SAS_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 06:04:25 -0500