Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/mfi/mfivar.h
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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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