FreeBSD/Linux Kernel Cross Reference
sys/dev/mfi/mfivar.h
1 /*-
2 * Copyright (c) 2006 IronPort Systems
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26 /*-
27 * Copyright (c) 2007 LSI Corp.
28 * Copyright (c) 2007 Rajesh Prabhakaran.
29 * All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
33 * are met:
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 */
52
53 #ifndef _MFIVAR_H
54 #define _MFIVAR_H
55
56 #include <sys/cdefs.h>
57 __FBSDID("$FreeBSD: releng/8.3/sys/dev/mfi/mfivar.h 229612 2012-01-05 18:31:08Z jhb $");
58
59 #include <sys/lock.h>
60 #include <sys/sx.h>
61
62 /*
63 * SCSI structures and definitions are used from here, but no linking
64 * requirements are made to CAM.
65 */
66 #include <cam/scsi/scsi_all.h>
67
68 struct mfi_hwcomms {
69 uint32_t hw_pi;
70 uint32_t hw_ci;
71 uint32_t hw_reply_q[1];
72 };
73
74 struct mfi_softc;
75 struct disk;
76 struct ccb_hdr;
77
78 struct mfi_command {
79 TAILQ_ENTRY(mfi_command) cm_link;
80 time_t cm_timestamp;
81 struct mfi_softc *cm_sc;
82 union mfi_frame *cm_frame;
83 uint32_t cm_frame_busaddr;
84 struct mfi_sense *cm_sense;
85 uint32_t cm_sense_busaddr;
86 bus_dmamap_t cm_dmamap;
87 union mfi_sgl *cm_sg;
88 void *cm_data;
89 int cm_len;
90 int cm_stp_len;
91 int cm_total_frame_size;
92 int cm_extra_frames;
93 int cm_flags;
94 #define MFI_CMD_MAPPED (1<<0)
95 #define MFI_CMD_DATAIN (1<<1)
96 #define MFI_CMD_DATAOUT (1<<2)
97 #define MFI_CMD_COMPLETED (1<<3)
98 #define MFI_CMD_POLLED (1<<4)
99 #define MFI_ON_MFIQ_FREE (1<<5)
100 #define MFI_ON_MFIQ_READY (1<<6)
101 #define MFI_ON_MFIQ_BUSY (1<<7)
102 #define MFI_ON_MFIQ_MASK ((1<<5)|(1<<6)|(1<<7))
103 int cm_aen_abort;
104 void (* cm_complete)(struct mfi_command *cm);
105 void *cm_private;
106 int cm_index;
107 int cm_error;
108 };
109
110 struct mfi_disk {
111 TAILQ_ENTRY(mfi_disk) ld_link;
112 device_t ld_dev;
113 int ld_id;
114 int ld_unit;
115 struct mfi_softc *ld_controller;
116 struct mfi_ld_info *ld_info;
117 struct disk *ld_disk;
118 int ld_flags;
119 #define MFI_DISK_FLAGS_OPEN 0x01
120 #define MFI_DISK_FLAGS_DISABLED 0x02
121 };
122
123 struct mfi_aen {
124 TAILQ_ENTRY(mfi_aen) aen_link;
125 struct proc *p;
126 };
127
128 struct mfi_softc {
129 device_t mfi_dev;
130 int mfi_flags;
131 #define MFI_FLAGS_SG64 (1<<0)
132 #define MFI_FLAGS_QFRZN (1<<1)
133 #define MFI_FLAGS_OPEN (1<<2)
134 #define MFI_FLAGS_STOP (1<<3)
135 #define MFI_FLAGS_1064R (1<<4)
136 #define MFI_FLAGS_1078 (1<<5)
137 #define MFI_FLAGS_GEN2 (1<<6)
138
139 struct mfi_hwcomms *mfi_comms;
140 TAILQ_HEAD(,mfi_command) mfi_free;
141 TAILQ_HEAD(,mfi_command) mfi_ready;
142 TAILQ_HEAD(,mfi_command) mfi_busy;
143 struct bio_queue_head mfi_bioq;
144 struct mfi_qstat mfi_qstat[MFIQ_COUNT];
145
146 struct resource *mfi_regs_resource;
147 bus_space_handle_t mfi_bhandle;
148 bus_space_tag_t mfi_btag;
149 int mfi_regs_rid;
150
151 bus_dma_tag_t mfi_parent_dmat;
152 bus_dma_tag_t mfi_buffer_dmat;
153
154 bus_dma_tag_t mfi_comms_dmat;
155 bus_dmamap_t mfi_comms_dmamap;
156 uint32_t mfi_comms_busaddr;
157
158 bus_dma_tag_t mfi_frames_dmat;
159 bus_dmamap_t mfi_frames_dmamap;
160 uint32_t mfi_frames_busaddr;
161 union mfi_frame *mfi_frames;
162
163 TAILQ_HEAD(,mfi_aen) mfi_aen_pids;
164 struct mfi_command *mfi_aen_cm;
165 uint32_t mfi_aen_triggered;
166 uint32_t mfi_poll_waiting;
167 struct selinfo mfi_select;
168 int mfi_delete_busy_volumes;
169 int mfi_keep_deleted_volumes;
170 int mfi_detaching;
171
172 bus_dma_tag_t mfi_sense_dmat;
173 bus_dmamap_t mfi_sense_dmamap;
174 uint32_t mfi_sense_busaddr;
175 struct mfi_sense *mfi_sense;
176
177 struct resource *mfi_irq;
178 void *mfi_intr;
179 int mfi_irq_rid;
180
181 struct intr_config_hook mfi_ich;
182 eventhandler_tag eh;
183
184 /*
185 * Allocation for the command array. Used as an indexable array to
186 * recover completed commands.
187 */
188 struct mfi_command *mfi_commands;
189 /*
190 * How many commands were actually allocated
191 */
192 int mfi_total_cmds;
193 /*
194 * How many commands the firmware can handle. Also how big the reply
195 * queue is, minus 1.
196 */
197 int mfi_max_fw_cmds;
198 /*
199 * How many S/G elements we'll ever actually use
200 */
201 int mfi_max_sge;
202 /*
203 * How many bytes a compound frame is, including all of the extra frames
204 * that are used for S/G elements.
205 */
206 int mfi_cmd_size;
207 /*
208 * How large an S/G element is. Used to calculate the number of single
209 * frames in a command.
210 */
211 int mfi_sge_size;
212 /*
213 * Max number of sectors that the firmware allows
214 */
215 uint32_t mfi_max_io;
216
217 TAILQ_HEAD(,mfi_disk) mfi_ld_tqh;
218 eventhandler_tag mfi_eh;
219 struct cdev *mfi_cdev;
220
221 TAILQ_HEAD(, ccb_hdr) mfi_cam_ccbq;
222 struct mfi_command * (* mfi_cam_start)(void *);
223 struct callout mfi_watchdog_callout;
224 struct mtx mfi_io_lock;
225 struct sx mfi_config_lock;
226
227 /* Controller type specific interfaces */
228 void (*mfi_enable_intr)(struct mfi_softc *sc);
229 int32_t (*mfi_read_fw_status)(struct mfi_softc *sc);
230 int (*mfi_check_clear_intr)(struct mfi_softc *sc);
231 void (*mfi_issue_cmd)(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt);
232 };
233
234 extern int mfi_attach(struct mfi_softc *);
235 extern void mfi_free(struct mfi_softc *);
236 extern int mfi_shutdown(struct mfi_softc *);
237 extern void mfi_startio(struct mfi_softc *);
238 extern void mfi_disk_complete(struct bio *);
239 extern int mfi_disk_disable(struct mfi_disk *);
240 extern void mfi_disk_enable(struct mfi_disk *);
241 extern int mfi_dump_blocks(struct mfi_softc *, int id, uint64_t, void *, int);
242
243 #define MFIQ_ADD(sc, qname) \
244 do { \
245 struct mfi_qstat *qs; \
246 \
247 qs = &(sc)->mfi_qstat[qname]; \
248 qs->q_length++; \
249 if (qs->q_length > qs->q_max) \
250 qs->q_max = qs->q_length; \
251 } while (0)
252
253 #define MFIQ_REMOVE(sc, qname) (sc)->mfi_qstat[qname].q_length--
254
255 #define MFIQ_INIT(sc, qname) \
256 do { \
257 sc->mfi_qstat[qname].q_length = 0; \
258 sc->mfi_qstat[qname].q_max = 0; \
259 } while (0)
260
261 #define MFIQ_COMMAND_QUEUE(name, index) \
262 static __inline void \
263 mfi_initq_ ## name (struct mfi_softc *sc) \
264 { \
265 TAILQ_INIT(&sc->mfi_ ## name); \
266 MFIQ_INIT(sc, index); \
267 } \
268 static __inline void \
269 mfi_enqueue_ ## name (struct mfi_command *cm) \
270 { \
271 if ((cm->cm_flags & MFI_ON_MFIQ_MASK) != 0) { \
272 printf("command %p is on another queue, " \
273 "flags = %#x\n", cm, cm->cm_flags); \
274 panic("command is on another queue"); \
275 } \
276 TAILQ_INSERT_TAIL(&cm->cm_sc->mfi_ ## name, cm, cm_link); \
277 cm->cm_flags |= MFI_ON_ ## index; \
278 MFIQ_ADD(cm->cm_sc, index); \
279 } \
280 static __inline void \
281 mfi_requeue_ ## name (struct mfi_command *cm) \
282 { \
283 if ((cm->cm_flags & MFI_ON_MFIQ_MASK) != 0) { \
284 printf("command %p is on another queue, " \
285 "flags = %#x\n", cm, cm->cm_flags); \
286 panic("command is on another queue"); \
287 } \
288 TAILQ_INSERT_HEAD(&cm->cm_sc->mfi_ ## name, cm, cm_link); \
289 cm->cm_flags |= MFI_ON_ ## index; \
290 MFIQ_ADD(cm->cm_sc, index); \
291 } \
292 static __inline struct mfi_command * \
293 mfi_dequeue_ ## name (struct mfi_softc *sc) \
294 { \
295 struct mfi_command *cm; \
296 \
297 if ((cm = TAILQ_FIRST(&sc->mfi_ ## name)) != NULL) { \
298 if ((cm->cm_flags & MFI_ON_ ## index) == 0) { \
299 printf("command %p not in queue, " \
300 "flags = %#x, bit = %#x\n", cm, \
301 cm->cm_flags, MFI_ON_ ## index); \
302 panic("command not in queue"); \
303 } \
304 TAILQ_REMOVE(&sc->mfi_ ## name, cm, cm_link); \
305 cm->cm_flags &= ~MFI_ON_ ## index; \
306 MFIQ_REMOVE(sc, index); \
307 } \
308 return (cm); \
309 } \
310 static __inline void \
311 mfi_remove_ ## name (struct mfi_command *cm) \
312 { \
313 if ((cm->cm_flags & MFI_ON_ ## index) == 0) { \
314 printf("command %p not in queue, flags = %#x, " \
315 "bit = %#x\n", cm, cm->cm_flags, \
316 MFI_ON_ ## index); \
317 panic("command not in queue"); \
318 } \
319 TAILQ_REMOVE(&cm->cm_sc->mfi_ ## name, cm, cm_link); \
320 cm->cm_flags &= ~MFI_ON_ ## index; \
321 MFIQ_REMOVE(cm->cm_sc, index); \
322 } \
323 struct hack
324
325 MFIQ_COMMAND_QUEUE(free, MFIQ_FREE);
326 MFIQ_COMMAND_QUEUE(ready, MFIQ_READY);
327 MFIQ_COMMAND_QUEUE(busy, MFIQ_BUSY);
328
329 static __inline void
330 mfi_initq_bio(struct mfi_softc *sc)
331 {
332 bioq_init(&sc->mfi_bioq);
333 MFIQ_INIT(sc, MFIQ_BIO);
334 }
335
336 static __inline void
337 mfi_enqueue_bio(struct mfi_softc *sc, struct bio *bp)
338 {
339 bioq_insert_tail(&sc->mfi_bioq, bp);
340 MFIQ_ADD(sc, MFIQ_BIO);
341 }
342
343 static __inline struct bio *
344 mfi_dequeue_bio(struct mfi_softc *sc)
345 {
346 struct bio *bp;
347
348 if ((bp = bioq_first(&sc->mfi_bioq)) != NULL) {
349 bioq_remove(&sc->mfi_bioq, bp);
350 MFIQ_REMOVE(sc, MFIQ_BIO);
351 }
352 return (bp);
353 }
354
355 static __inline void
356 mfi_print_sense(struct mfi_softc *sc, void *sense)
357 {
358 int error, key, asc, ascq;
359
360 scsi_extract_sense((struct scsi_sense_data *)sense,
361 &error, &key, &asc, &ascq);
362 device_printf(sc->mfi_dev, "sense error %d, sense_key %d, "
363 "asc %d, ascq %d\n", error, key, asc, ascq);
364 }
365
366
367 #define MFI_WRITE4(sc, reg, val) bus_space_write_4((sc)->mfi_btag, \
368 sc->mfi_bhandle, (reg), (val))
369 #define MFI_READ4(sc, reg) bus_space_read_4((sc)->mfi_btag, \
370 (sc)->mfi_bhandle, (reg))
371 #define MFI_WRITE2(sc, reg, val) bus_space_write_2((sc)->mfi_btag, \
372 sc->mfi_bhandle, (reg), (val))
373 #define MFI_READ2(sc, reg) bus_space_read_2((sc)->mfi_btag, \
374 (sc)->mfi_bhandle, (reg))
375 #define MFI_WRITE1(sc, reg, val) bus_space_write_1((sc)->mfi_btag, \
376 sc->mfi_bhandle, (reg), (val))
377 #define MFI_READ1(sc, reg) bus_space_read_1((sc)->mfi_btag, \
378 (sc)->mfi_bhandle, (reg))
379
380 MALLOC_DECLARE(M_MFIBUF);
381 SYSCTL_DECL(_hw_mfi);
382
383 #define MFI_CMD_TIMEOUT 30
384 #define MFI_MAXPHYS (128 * 1024)
385
386 #ifdef MFI_DEBUG
387 extern void mfi_print_cmd(struct mfi_command *cm);
388 extern void mfi_dump_cmds(struct mfi_softc *sc);
389 extern void mfi_validate_sg(struct mfi_softc *, struct mfi_command *, const char *, int );
390 #define MFI_PRINT_CMD(cm) mfi_print_cmd(cm)
391 #define MFI_DUMP_CMDS(sc) mfi_dump_cmds(sc)
392 #define MFI_VALIDATE_CMD(sc, cm) mfi_validate_sg(sc, cm, __FUNCTION__, __LINE__)
393 #else
394 #define MFI_PRINT_CMD(cm)
395 #define MFI_DUMP_CMDS(sc)
396 #define MFI_VALIDATE_CMD(sc, cm)
397 #endif
398
399 extern void mfi_release_command(struct mfi_command *cm);
400
401 #endif /* _MFIVAR_H */
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