Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic_osm_lib.h
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1 /*- 2 * FreeBSD platform specific, shared driver option settings, data structures, 3 * function declarations and includes. 4 * 5 * Copyright (c) 1994-2001 Justin T. Gibbs. 6 * Copyright (c) 2001-2003 Adaptec Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU Public License ("GPL"). 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic_osm_lib.h#5 $ 34 * 35 * $FreeBSD$ 36 */ 37 38 /******************************** OS Includes *********************************/ 39 #include <sys/mutex.h> 40 41 /*************************** Library Symbol Mapping ***************************/ 42 #define AIC_LIB_ENTRY_CONCAT(x, prefix) prefix ## x 43 #define AIC_LIB_ENTRY_EXPAND(x, prefix) AIC_LIB_ENTRY_CONCAT(x, prefix) 44 #define AIC_LIB_ENTRY(x) AIC_LIB_ENTRY_EXPAND(x, AIC_LIB_PREFIX) 45 #define AIC_CONST_ENTRY(x) AIC_LIB_ENTRY_EXPAND(x,AIC_CONST_PREFIX) 46 47 #define aic_softc AIC_LIB_ENTRY(_softc) 48 #define aic_tailq AIC_LIB_ENTRY(_tailq) 49 #define aic_transinfo AIC_LIB_ENTRY(_transinfo) 50 #define aic_platform_data AIC_LIB_ENTRY(_platform_data) 51 #define aic_devinfo AIC_LIB_ENTRY(_devinfo) 52 #define aic_lock AIC_LIB_ENTRY(_lock) 53 #define aic_unlock AIC_LIB_ENTRY(_unlock) 54 #define aic_callback_t AIC_LIB_ENTRY(_callback_t) 55 #define aic_platform_freeze_devq AIC_LIB_ENTRY(_platform_freeze_devq) 56 #define aic_platform_abort_scbs AIC_LIB_ENTRY(_platform_abort_scbs) 57 #define aic_platform_timeout AIC_LIB_ENTRY(_platform_timeout) 58 #define aic_timeout AIC_LIB_ENTRY(_timeout) 59 #define aic_set_recoveryscb AIC_LIB_ENTRY(_set_recoveryscb) 60 #define aic_spawn_recovery_thread AIC_LIB_ENTRY(_spawn_recovery_thread) 61 #define aic_wakeup_recovery_thread AIC_LIB_ENTRY(_wakeup_recovery_thread) 62 #define aic_terminate_recovery_thread \ 63 AIC_LIB_ENTRY(_terminate_recovery_thread) 64 #define aic_recovery_thread AIC_LIB_ENTRY(_recovery_thread) 65 #define aic_recover_commands AIC_LIB_ENTRY(_recover_commands) 66 #define aic_calc_geometry AIC_LIB_ENTRY(_calc_geometry) 67 68 #define AIC_RESOURCE_SHORTAGE AIC_CONST_ENTRY(_RESOURCE_SHORTAGE) 69 #define AIC_SHUTDOWN_RECOVERY AIC_CONST_ENTRY(_SHUTDOWN_RECOVERY) 70 71 /********************************* Byte Order *********************************/ 72 #define aic_htobe16(x) htobe16(x) 73 #define aic_htobe32(x) htobe32(x) 74 #define aic_htobe64(x) htobe64(x) 75 #define aic_htole16(x) htole16(x) 76 #define aic_htole32(x) htole32(x) 77 #define aic_htole64(x) htole64(x) 78 79 #define aic_be16toh(x) be16toh(x) 80 #define aic_be32toh(x) be32toh(x) 81 #define aic_be64toh(x) be64toh(x) 82 #define aic_le16toh(x) le16toh(x) 83 #define aic_le32toh(x) le32toh(x) 84 #define aic_le64toh(x) le64toh(x) 85 86 /************************* Forward Declarations *******************************/ 87 typedef device_t aic_dev_softc_t; 88 typedef union ccb *aic_io_ctx_t; 89 struct aic_softc; 90 struct scb; 91 92 /*************************** Timer DataStructures *****************************/ 93 typedef struct callout aic_timer_t; 94 95 /****************************** Error Recovery ********************************/ 96 void aic_set_recoveryscb(struct aic_softc *aic, struct scb *scb); 97 callout_func_t aic_platform_timeout; 98 int aic_spawn_recovery_thread(struct aic_softc *aic); 99 void aic_terminate_recovery_thread(struct aic_softc *aic); 100 101 static __inline void aic_wakeup_recovery_thread(struct aic_softc *aic); 102 103 static __inline void 104 aic_wakeup_recovery_thread(struct aic_softc *aic) 105 { 106 wakeup(aic); 107 } 108 109 /****************************** Kernel Threads ********************************/ 110 #define aic_kthread_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \ 111 kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) 112 113 /******************************* Bus Space/DMA ********************************/ 114 115 #define aic_dma_tag_create(aic, parent_tag, alignment, boundary, \ 116 lowaddr, highaddr, filter, filterarg, \ 117 maxsize, nsegments, maxsegsz, flags, \ 118 dma_tagp) \ 119 bus_dma_tag_create(parent_tag, alignment, boundary, \ 120 lowaddr, highaddr, filter, filterarg, \ 121 maxsize, nsegments, maxsegsz, flags, \ 122 busdma_lock_mutex, &aic->platform_data->mtx, \ 123 dma_tagp) 124 125 #define aic_dma_tag_destroy(aic, tag) \ 126 bus_dma_tag_destroy(tag) 127 128 #define aic_dmamem_alloc(aic, dmat, vaddr, flags, mapp) \ 129 bus_dmamem_alloc(dmat, vaddr, flags, mapp) 130 131 #define aic_dmamem_free(aic, dmat, vaddr, map) \ 132 bus_dmamem_free(dmat, vaddr, map) 133 134 #define aic_dmamap_create(aic, tag, flags, mapp) \ 135 bus_dmamap_create(tag, flags, mapp) 136 137 #define aic_dmamap_destroy(aic, tag, map) \ 138 bus_dmamap_destroy(tag, map) 139 140 #define aic_dmamap_load(aic, dmat, map, addr, buflen, callback, \ 141 callback_arg, flags) \ 142 bus_dmamap_load(dmat, map, addr, buflen, callback, callback_arg, flags) 143 144 #define aic_dmamap_unload(aic, tag, map) \ 145 bus_dmamap_unload(tag, map) 146 147 /* XXX Need to update Bus DMA for partial map syncs */ 148 #define aic_dmamap_sync(aic, dma_tag, dmamap, offset, len, op) \ 149 bus_dmamap_sync(dma_tag, dmamap, op) 150 151 /***************************** Core Includes **********************************/ 152 #include AIC_CORE_INCLUDE 153 154 /***************************** Timer Facilities *******************************/ 155 #define aic_timer_init(timer) callout_init(timer, /*mpsafe*/1) 156 #define aic_timer_stop callout_stop 157 158 static __inline void aic_timer_reset(aic_timer_t *, u_int, 159 aic_callback_t *, void *); 160 static __inline u_int aic_get_timeout(struct scb *); 161 static __inline void aic_scb_timer_reset(struct scb *, u_int); 162 163 static __inline void 164 aic_timer_reset(aic_timer_t *timer, u_int msec, aic_callback_t *func, void *arg) 165 { 166 uint64_t time; 167 168 time = msec; 169 time *= hz; 170 time /= 1000; 171 callout_reset(timer, time, func, arg); 172 } 173 174 static __inline u_int 175 aic_get_timeout(struct scb *scb) 176 { 177 return (scb->io_ctx->ccb_h.timeout); 178 } 179 180 static __inline void 181 aic_scb_timer_reset(struct scb *scb, u_int msec) 182 { 183 uint64_t time; 184 185 time = msec; 186 time *= hz; 187 time /= 1000; 188 callout_reset(&scb->io_timer, time, aic_platform_timeout, scb); 189 } 190 191 static __inline void 192 aic_scb_timer_start(struct scb *scb) 193 { 194 195 if (AIC_SCB_DATA(scb->aic_softc)->recovery_scbs == 0 196 && scb->io_ctx->ccb_h.timeout != CAM_TIME_INFINITY) { 197 aic_scb_timer_reset(scb, scb->io_ctx->ccb_h.timeout); 198 } 199 } 200 201 /************************** Transaction Operations ****************************/ 202 static __inline void aic_set_transaction_status(struct scb *, uint32_t); 203 static __inline void aic_set_scsi_status(struct scb *, uint32_t); 204 static __inline uint32_t aic_get_transaction_status(struct scb *); 205 static __inline uint32_t aic_get_scsi_status(struct scb *); 206 static __inline void aic_set_transaction_tag(struct scb *, int, u_int); 207 static __inline u_long aic_get_transfer_length(struct scb *); 208 static __inline int aic_get_transfer_dir(struct scb *); 209 static __inline void aic_set_residual(struct scb *, u_long); 210 static __inline void aic_set_sense_residual(struct scb *, u_long); 211 static __inline u_long aic_get_residual(struct scb *); 212 static __inline int aic_perform_autosense(struct scb *); 213 static __inline uint32_t aic_get_sense_bufsize(struct aic_softc*, struct scb*); 214 static __inline void aic_freeze_ccb(union ccb *ccb); 215 static __inline void aic_freeze_scb(struct scb *scb); 216 static __inline void aic_platform_freeze_devq(struct aic_softc *, struct scb *); 217 static __inline int aic_platform_abort_scbs(struct aic_softc *aic, int target, 218 char channel, int lun, u_int tag, 219 role_t role, uint32_t status); 220 221 static __inline 222 void aic_set_transaction_status(struct scb *scb, uint32_t status) 223 { 224 scb->io_ctx->ccb_h.status &= ~CAM_STATUS_MASK; 225 scb->io_ctx->ccb_h.status |= status; 226 } 227 228 static __inline 229 void aic_set_scsi_status(struct scb *scb, uint32_t status) 230 { 231 scb->io_ctx->csio.scsi_status = status; 232 } 233 234 static __inline 235 uint32_t aic_get_transaction_status(struct scb *scb) 236 { 237 return (scb->io_ctx->ccb_h.status & CAM_STATUS_MASK); 238 } 239 240 static __inline 241 uint32_t aic_get_scsi_status(struct scb *scb) 242 { 243 return (scb->io_ctx->csio.scsi_status); 244 } 245 246 static __inline 247 void aic_set_transaction_tag(struct scb *scb, int enabled, u_int type) 248 { 249 scb->io_ctx->csio.tag_action = type; 250 if (enabled) 251 scb->io_ctx->ccb_h.flags |= CAM_TAG_ACTION_VALID; 252 else 253 scb->io_ctx->ccb_h.flags &= ~CAM_TAG_ACTION_VALID; 254 } 255 256 static __inline 257 u_long aic_get_transfer_length(struct scb *scb) 258 { 259 return (scb->io_ctx->csio.dxfer_len); 260 } 261 262 static __inline 263 int aic_get_transfer_dir(struct scb *scb) 264 { 265 return (scb->io_ctx->ccb_h.flags & CAM_DIR_MASK); 266 } 267 268 static __inline 269 void aic_set_residual(struct scb *scb, u_long resid) 270 { 271 scb->io_ctx->csio.resid = resid; 272 } 273 274 static __inline 275 void aic_set_sense_residual(struct scb *scb, u_long resid) 276 { 277 scb->io_ctx->csio.sense_resid = resid; 278 } 279 280 static __inline 281 u_long aic_get_residual(struct scb *scb) 282 { 283 return (scb->io_ctx->csio.resid); 284 } 285 286 static __inline 287 int aic_perform_autosense(struct scb *scb) 288 { 289 return (!(scb->io_ctx->ccb_h.flags & CAM_DIS_AUTOSENSE)); 290 } 291 292 static __inline uint32_t 293 aic_get_sense_bufsize(struct aic_softc *aic, struct scb *scb) 294 { 295 return (sizeof(struct scsi_sense_data)); 296 } 297 298 static __inline void 299 aic_freeze_ccb(union ccb *ccb) 300 { 301 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0) { 302 ccb->ccb_h.status |= CAM_DEV_QFRZN; 303 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 304 } 305 } 306 307 static __inline void 308 aic_freeze_scb(struct scb *scb) 309 { 310 aic_freeze_ccb(scb->io_ctx); 311 } 312 313 static __inline void 314 aic_platform_freeze_devq(struct aic_softc *aic, struct scb *scb) 315 { 316 /* Nothing to do here for FreeBSD */ 317 } 318 319 static __inline int 320 aic_platform_abort_scbs(struct aic_softc *aic, int target, 321 char channel, int lun, u_int tag, 322 role_t role, uint32_t status) 323 { 324 /* Nothing to do here for FreeBSD */ 325 return (0); 326 } 327 328 static __inline void 329 aic_platform_scb_free(struct aic_softc *aic, struct scb *scb) 330 { 331 /* What do we do to generically handle driver resource shortages??? */ 332 if ((aic->flags & AIC_RESOURCE_SHORTAGE) != 0 333 && scb->io_ctx != NULL 334 && (scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 335 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 336 aic->flags &= ~AIC_RESOURCE_SHORTAGE; 337 } 338 scb->io_ctx = NULL; 339 } 340 341 /*************************** CAM CCB Operations *******************************/ 342 void aic_calc_geometry(struct ccb_calc_geometry *ccg, int extended); 343 344 /****************************** OS Primitives *********************************/ 345 #define aic_delay DELAY 346 347 /********************************** PCI ***************************************/ 348 #ifdef AIC_PCI_CONFIG 349 static __inline uint32_t aic_pci_read_config(aic_dev_softc_t pci, 350 int reg, int width); 351 static __inline void aic_pci_write_config(aic_dev_softc_t pci, 352 int reg, uint32_t value, 353 int width); 354 static __inline int aic_get_pci_function(aic_dev_softc_t); 355 static __inline int aic_get_pci_slot(aic_dev_softc_t); 356 static __inline int aic_get_pci_bus(aic_dev_softc_t); 357 358 static __inline uint32_t 359 aic_pci_read_config(aic_dev_softc_t pci, int reg, int width) 360 { 361 return (pci_read_config(pci, reg, width)); 362 } 363 364 static __inline void 365 aic_pci_write_config(aic_dev_softc_t pci, int reg, uint32_t value, int width) 366 { 367 pci_write_config(pci, reg, value, width); 368 } 369 370 static __inline int 371 aic_get_pci_function(aic_dev_softc_t pci) 372 { 373 return (pci_get_function(pci)); 374 } 375 376 static __inline int 377 aic_get_pci_slot(aic_dev_softc_t pci) 378 { 379 return (pci_get_slot(pci)); 380 } 381 382 static __inline int 383 aic_get_pci_bus(aic_dev_softc_t pci) 384 { 385 return (pci_get_bus(pci)); 386 } 387 388 typedef enum 389 { 390 AIC_POWER_STATE_D0 = PCI_POWERSTATE_D0, 391 AIC_POWER_STATE_D1 = PCI_POWERSTATE_D1, 392 AIC_POWER_STATE_D2 = PCI_POWERSTATE_D2, 393 AIC_POWER_STATE_D3 = PCI_POWERSTATE_D3 394 } aic_power_state; 395 396 static __inline int aic_power_state_change(struct aic_softc *aic, 397 aic_power_state new_state); 398 399 static __inline int 400 aic_power_state_change(struct aic_softc *aic, aic_power_state new_state) 401 { 402 return (pci_set_powerstate(aic->dev_softc, new_state)); 403 } 404 #endif
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