aic79xx_osm.h revision 107623
1/* 2 * FreeBSD platform specific driver option settings, data structures, 3 * function declarations and includes. 4 * 5 * Copyright (c) 1994-2001 Justin T. Gibbs. 6 * Copyright (c) 2001-2002 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/aic79xx_osm.h#19 $ 34 * 35 * $FreeBSD: head/sys/dev/aic7xxx/aic79xx_osm.h 107623 2002-12-04 22:51:29Z scottl $ 36 */ 37 38#ifndef _AIC79XX_FREEBSD_H_ 39#define _AIC79XX_FREEBSD_H_ 40 41#include <opt_aic79xx.h> /* for config options */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/bus.h> /* For device_t */ 46#if __FreeBSD_version >= 500000 47#include <sys/endian.h> 48#endif 49#include <sys/eventhandler.h> 50#include <sys/kernel.h> 51#include <sys/malloc.h> 52#include <sys/queue.h> 53 54#define AHD_PCI_CONFIG 1 55#include <machine/bus_memio.h> 56#include <machine/bus_pio.h> 57#include <machine/bus.h> 58#include <machine/endian.h> 59#include <machine/clock.h> 60#include <machine/resource.h> 61 62#include <sys/rman.h> 63 64#include <pci/pcireg.h> 65#include <pci/pcivar.h> 66 67#include <cam/cam.h> 68#include <cam/cam_ccb.h> 69#include <cam/cam_debug.h> 70#include <cam/cam_sim.h> 71#include <cam/cam_xpt_sim.h> 72 73#include <cam/scsi/scsi_all.h> 74#include <cam/scsi/scsi_message.h> 75#include <cam/scsi/scsi_iu.h> 76 77#ifdef CAM_NEW_TRAN_CODE 78#define AHD_NEW_TRAN_SETTINGS 79#endif /* CAM_NEW_TRAN_CODE */ 80 81/****************************** Platform Macros *******************************/ 82#define SIM_IS_SCSIBUS_B(ahd, sim) \ 83 (0) 84#define SIM_CHANNEL(ahd, sim) \ 85 ('A') 86#define SIM_SCSI_ID(ahd, sim) \ 87 (ahd->our_id) 88#define SIM_PATH(ahd, sim) \ 89 (ahd->platform_data->path) 90#define BUILD_SCSIID(ahd, sim, target_id, our_id) \ 91 ((((target_id) << TID_SHIFT) & TID) | (our_id)) 92 93 94#define SCB_GET_SIM(ahd, scb) \ 95 ((ahd)->platform_data->sim) 96 97#ifndef offsetof 98#define offsetof(type, member) ((size_t)(&((type *)0)->member)) 99#endif 100/************************* Forward Declarations *******************************/ 101typedef device_t ahd_dev_softc_t; 102typedef union ccb *ahd_io_ctx_t; 103 104/***************************** Bus Space/DMA **********************************/ 105#define ahd_dma_tag_create(ahd, parent_tag, alignment, boundary, \ 106 lowaddr, highaddr, filter, filterarg, \ 107 maxsize, nsegments, maxsegsz, flags, \ 108 dma_tagp) \ 109 bus_dma_tag_create(parent_tag, alignment, boundary, \ 110 lowaddr, highaddr, filter, filterarg, \ 111 maxsize, nsegments, maxsegsz, flags, \ 112 dma_tagp) 113 114#define ahd_dma_tag_destroy(ahd, tag) \ 115 bus_dma_tag_destroy(tag) 116 117#define ahd_dmamem_alloc(ahd, dmat, vaddr, flags, mapp) \ 118 bus_dmamem_alloc(dmat, vaddr, flags, mapp) 119 120#define ahd_dmamem_free(ahd, dmat, vaddr, map) \ 121 bus_dmamem_free(dmat, vaddr, map) 122 123#define ahd_dmamap_create(ahd, tag, flags, mapp) \ 124 bus_dmamap_create(tag, flags, mapp) 125 126#define ahd_dmamap_destroy(ahd, tag, map) \ 127 bus_dmamap_destroy(tag, map) 128 129#define ahd_dmamap_load(ahd, dmat, map, addr, buflen, callback, \ 130 callback_arg, flags) \ 131 bus_dmamap_load(dmat, map, addr, buflen, callback, callback_arg, flags) 132 133#define ahd_dmamap_unload(ahd, tag, map) \ 134 bus_dmamap_unload(tag, map) 135 136/* XXX Need to update Bus DMA for partial map syncs */ 137#define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op) \ 138 bus_dmamap_sync(dma_tag, dmamap, op) 139 140/************************ Tunable Driver Parameters **************************/ 141/* 142 * The number of dma segments supported. The sequencer can handle any number 143 * of physically contiguous S/G entrys. To reduce the driver's memory 144 * consumption, we limit the number supported to be sufficient to handle 145 * the largest mapping supported by the kernel, MAXPHYS. Assuming the 146 * transfer is as fragmented as possible and unaligned, this turns out to 147 * be the number of paged sized transfers in MAXPHYS plus an extra element 148 * to handle any unaligned residual. The sequencer fetches SG elements 149 * in cacheline sized chucks, so make the number per-transaction an even 150 * multiple of 16 which should align us on even the largest of cacheline 151 * boundaries. 152 */ 153#define AHD_NSEG (roundup(btoc(MAXPHYS) + 1, 16)) 154 155/* This driver supports target mode */ 156#if NOT_YET 157#define AHD_TARGET_MODE 1 158#endif 159 160/************************** Softc/SCB Platform Data ***************************/ 161struct ahd_platform_data { 162 /* 163 * Hooks into the XPT. 164 */ 165 struct cam_sim *sim; 166 struct cam_sim *sim_b; 167 struct cam_path *path; 168 struct cam_path *path_b; 169 170 int regs_res_type[2]; 171 int regs_res_id[2]; 172 int irq_res_type; 173 struct resource *regs[2]; 174 struct resource *irq; 175 void *ih; 176 eventhandler_tag eh; 177}; 178 179struct scb_platform_data { 180}; 181 182/********************************* Byte Order *********************************/ 183#if __FreeBSD_version >= 500000 184#define ahd_htobe16(x) htobe16(x) 185#define ahd_htobe32(x) htobe32(x) 186#define ahd_htobe64(x) htobe64(x) 187#define ahd_htole16(x) htole16(x) 188#define ahd_htole32(x) htole32(x) 189#define ahd_htole64(x) htole64(x) 190 191#define ahd_be16toh(x) be16toh(x) 192#define ahd_be32toh(x) be32toh(x) 193#define ahd_be64toh(x) be64toh(x) 194#define ahd_le16toh(x) le16toh(x) 195#define ahd_le32toh(x) le32toh(x) 196#define ahd_le64toh(x) le64toh(x) 197#else 198#define ahd_htobe16(x) (x) 199#define ahd_htobe32(x) (x) 200#define ahd_htobe64(x) (x) 201#define ahd_htole16(x) (x) 202#define ahd_htole32(x) (x) 203#define ahd_htole64(x) (x) 204 205#define ahd_be16toh(x) (x) 206#define ahd_be32toh(x) (x) 207#define ahd_be64toh(x) (x) 208#define ahd_le16toh(x) (x) 209#define ahd_le32toh(x) (x) 210#define ahd_le64toh(x) (x) 211#endif 212 213/************************** Timer DataStructures ******************************/ 214typedef struct callout ahd_timer_t; 215 216/***************************** Core Includes **********************************/ 217#if AHD_REG_PRETTY_PRINT 218#define AIC_DEBUG_REGISTERS 1 219#else 220#define AIC_DEBUG_REGISTERS 0 221#endif 222#include <dev/aic7xxx/aic79xx.h> 223 224/***************************** Timer Facilities *******************************/ 225timeout_t ahd_timeout; 226#if __FreeBSD_version >= 500000 227#define ahd_timer_init(timer) callout_init(timer, /*mpsafe*/0) 228#else 229#define ahd_timer_init callout_init 230#endif 231#define ahd_timer_stop callout_stop 232 233static __inline void 234ahd_timer_reset(ahd_timer_t *timer, u_int usec, ahd_callback_t *func, void *arg) 235{ 236 callout_reset(timer, (usec * hz)/1000000, func, arg); 237} 238 239static __inline void 240ahd_scb_timer_reset(struct scb *scb, u_int usec) 241{ 242 untimeout(ahd_timeout, (caddr_t)scb, scb->io_ctx->ccb_h.timeout_ch); 243 scb->io_ctx->ccb_h.timeout_ch = 244 timeout(ahd_timeout, scb, (usec * hz)/1000000); 245} 246 247/*************************** Device Access ************************************/ 248#define ahd_inb(ahd, port) \ 249 bus_space_read_1((ahd)->tags[(port) >> 8], \ 250 (ahd)->bshs[(port) >> 8], (port) & 0xFF) 251 252#define ahd_outb(ahd, port, value) \ 253 bus_space_write_1((ahd)->tags[(port) >> 8], \ 254 (ahd)->bshs[(port) >> 8], (port) & 0xFF, value) 255 256#define ahd_inw_atomic(ahd, port) \ 257 ahd_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8], \ 258 (ahd)->bshs[(port) >> 8], (port) & 0xFF)) 259 260#define ahd_outw_atomic(ahd, port, value) \ 261 bus_space_write_2((ahd)->tags[(port) >> 8], \ 262 (ahd)->bshs[(port) >> 8], \ 263 (port & 0xFF), ahd_htole16(value)) 264 265#define ahd_outsb(ahd, port, valp, count) \ 266 bus_space_write_multi_1((ahd)->tags[(port) >> 8], \ 267 (ahd)->bshs[(port) >> 8], \ 268 (port & 0xFF), valp, count) 269 270#define ahd_insb(ahd, port, valp, count) \ 271 bus_space_read_multi_1((ahd)->tags[(port) >> 8], \ 272 (ahd)->bshs[(port) >> 8], \ 273 (port & 0xFF), valp, count) 274 275static __inline void ahd_flush_device_writes(struct ahd_softc *); 276 277static __inline void 278ahd_flush_device_writes(struct ahd_softc *ahd) 279{ 280 /* XXX Is this sufficient for all architectures??? */ 281 ahd_inb(ahd, INTSTAT); 282} 283 284/**************************** Locking Primitives ******************************/ 285/* Lock protecting internal data structures */ 286static __inline void ahd_lockinit(struct ahd_softc *); 287static __inline void ahd_lock(struct ahd_softc *, unsigned long *flags); 288static __inline void ahd_unlock(struct ahd_softc *, unsigned long *flags); 289 290/* Lock held during command compeletion to the upper layer */ 291static __inline void ahd_done_lockinit(struct ahd_softc *); 292static __inline void ahd_done_lock(struct ahd_softc *, unsigned long *flags); 293static __inline void ahd_done_unlock(struct ahd_softc *, unsigned long *flags); 294 295/* Lock held during ahd_list manipulation and ahd softc frees */ 296static __inline void ahd_list_lockinit(void); 297static __inline void ahd_list_lock(unsigned long *flags); 298static __inline void ahd_list_unlock(unsigned long *flags); 299 300static __inline void 301ahd_lockinit(struct ahd_softc *ahd) 302{ 303} 304 305static __inline void 306ahd_lock(struct ahd_softc *ahd, unsigned long *flags) 307{ 308 *flags = splcam(); 309} 310 311static __inline void 312ahd_unlock(struct ahd_softc *ahd, unsigned long *flags) 313{ 314 splx(*flags); 315} 316 317/* Lock held during command compeletion to the upper layer */ 318static __inline void 319ahd_done_lockinit(struct ahd_softc *ahd) 320{ 321} 322 323static __inline void 324ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags) 325{ 326} 327 328static __inline void 329ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags) 330{ 331} 332 333/* Lock held during ahd_list manipulation and ahd softc frees */ 334static __inline void 335ahd_list_lockinit() 336{ 337} 338 339static __inline void 340ahd_list_lock(unsigned long *flags) 341{ 342} 343 344static __inline void 345ahd_list_unlock(unsigned long *flags) 346{ 347} 348/****************************** OS Primitives *********************************/ 349#define ahd_delay DELAY 350 351/************************** Transaction Operations ****************************/ 352static __inline void ahd_set_transaction_status(struct scb *, uint32_t); 353static __inline void ahd_set_scsi_status(struct scb *, uint32_t); 354static __inline uint32_t ahd_get_transaction_status(struct scb *); 355static __inline uint32_t ahd_get_scsi_status(struct scb *); 356static __inline void ahd_set_transaction_tag(struct scb *, int, u_int); 357static __inline u_long ahd_get_transfer_length(struct scb *); 358static __inline int ahd_get_transfer_dir(struct scb *); 359static __inline void ahd_set_residual(struct scb *, u_long); 360static __inline void ahd_set_sense_residual(struct scb *, u_long); 361static __inline u_long ahd_get_residual(struct scb *); 362static __inline int ahd_perform_autosense(struct scb *); 363static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc*, struct scb*); 364static __inline void ahd_freeze_simq(struct ahd_softc *); 365static __inline void ahd_release_simq(struct ahd_softc *); 366static __inline void ahd_freeze_ccb(union ccb *ccb); 367static __inline void ahd_freeze_scb(struct scb *scb); 368static __inline void ahd_platform_freeze_devq(struct ahd_softc *, struct scb *); 369static __inline int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, 370 char channel, int lun, u_int tag, 371 role_t role, uint32_t status); 372 373static __inline 374void ahd_set_transaction_status(struct scb *scb, uint32_t status) 375{ 376 scb->io_ctx->ccb_h.status &= ~CAM_STATUS_MASK; 377 scb->io_ctx->ccb_h.status |= status; 378} 379 380static __inline 381void ahd_set_scsi_status(struct scb *scb, uint32_t status) 382{ 383 scb->io_ctx->csio.scsi_status = status; 384} 385 386static __inline 387uint32_t ahd_get_transaction_status(struct scb *scb) 388{ 389 return (scb->io_ctx->ccb_h.status & CAM_STATUS_MASK); 390} 391 392static __inline 393uint32_t ahd_get_scsi_status(struct scb *scb) 394{ 395 return (scb->io_ctx->csio.scsi_status); 396} 397 398static __inline 399void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type) 400{ 401 scb->io_ctx->csio.tag_action = type; 402 if (enabled) 403 scb->io_ctx->ccb_h.flags |= CAM_TAG_ACTION_VALID; 404 else 405 scb->io_ctx->ccb_h.flags &= ~CAM_TAG_ACTION_VALID; 406} 407 408static __inline 409u_long ahd_get_transfer_length(struct scb *scb) 410{ 411 return (scb->io_ctx->csio.dxfer_len); 412} 413 414static __inline 415int ahd_get_transfer_dir(struct scb *scb) 416{ 417 return (scb->io_ctx->ccb_h.flags & CAM_DIR_MASK); 418} 419 420static __inline 421void ahd_set_residual(struct scb *scb, u_long resid) 422{ 423 scb->io_ctx->csio.resid = resid; 424} 425 426static __inline 427void ahd_set_sense_residual(struct scb *scb, u_long resid) 428{ 429 scb->io_ctx->csio.sense_resid = resid; 430} 431 432static __inline 433u_long ahd_get_residual(struct scb *scb) 434{ 435 return (scb->io_ctx->csio.resid); 436} 437 438static __inline 439int ahd_perform_autosense(struct scb *scb) 440{ 441 return (!(scb->io_ctx->ccb_h.flags & CAM_DIS_AUTOSENSE)); 442} 443 444static __inline uint32_t 445ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb) 446{ 447 return (sizeof(struct scsi_sense_data)); 448} 449 450static __inline void 451ahd_freeze_simq(struct ahd_softc *ahd) 452{ 453 xpt_freeze_simq(ahd->platform_data->sim, /*count*/1); 454} 455 456static __inline void 457ahd_release_simq(struct ahd_softc *ahd) 458{ 459 xpt_release_simq(ahd->platform_data->sim, /*run queue*/TRUE); 460} 461 462static __inline void 463ahd_freeze_ccb(union ccb *ccb) 464{ 465 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0) { 466 ccb->ccb_h.status |= CAM_DEV_QFRZN; 467 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 468 } 469} 470 471static __inline void 472ahd_freeze_scb(struct scb *scb) 473{ 474 ahd_freeze_ccb(scb->io_ctx); 475} 476 477static __inline void 478ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) 479{ 480 /* Nothing to do here for FreeBSD */ 481} 482 483static __inline int 484ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, 485 char channel, int lun, u_int tag, 486 role_t role, uint32_t status) 487{ 488 /* Nothing to do here for FreeBSD */ 489 return (0); 490} 491 492static __inline void 493ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb) 494{ 495 /* What do we do to generically handle driver resource shortages??? */ 496 if ((ahd->flags & AHD_RESOURCE_SHORTAGE) != 0 497 && scb->io_ctx != NULL 498 && (scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 499 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 500 ahd->flags &= ~AHD_RESOURCE_SHORTAGE; 501 } 502 scb->io_ctx = NULL; 503} 504 505/********************************** PCI ***************************************/ 506#ifdef AHD_PCI_CONFIG 507static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci, 508 int reg, int width); 509static __inline void ahd_pci_write_config(ahd_dev_softc_t pci, 510 int reg, uint32_t value, 511 int width); 512static __inline int ahd_get_pci_function(ahd_dev_softc_t); 513static __inline int ahd_get_pci_slot(ahd_dev_softc_t); 514static __inline int ahd_get_pci_bus(ahd_dev_softc_t); 515 516int ahd_pci_map_registers(struct ahd_softc *ahd); 517int ahd_pci_map_int(struct ahd_softc *ahd); 518 519static __inline uint32_t 520ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width) 521{ 522 return (pci_read_config(pci, reg, width)); 523} 524 525static __inline void 526ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width) 527{ 528 pci_write_config(pci, reg, value, width); 529} 530 531static __inline int 532ahd_get_pci_function(ahd_dev_softc_t pci) 533{ 534 return (pci_get_function(pci)); 535} 536 537static __inline int 538ahd_get_pci_slot(ahd_dev_softc_t pci) 539{ 540 return (pci_get_slot(pci)); 541} 542 543static __inline int 544ahd_get_pci_bus(ahd_dev_softc_t pci) 545{ 546 return (pci_get_bus(pci)); 547} 548 549typedef enum 550{ 551 AHD_POWER_STATE_D0, 552 AHD_POWER_STATE_D1, 553 AHD_POWER_STATE_D2, 554 AHD_POWER_STATE_D3 555} ahd_power_state; 556 557void ahd_power_state_change(struct ahd_softc *ahd, 558 ahd_power_state new_state); 559#endif 560/******************************** VL/EISA *************************************/ 561int aic7770_map_registers(struct ahd_softc *ahd); 562int aic7770_map_int(struct ahd_softc *ahd, int irq); 563 564/********************************* Debug **************************************/ 565static __inline void ahd_print_path(struct ahd_softc *, struct scb *); 566static __inline void ahd_platform_dump_card_state(struct ahd_softc *ahd); 567 568static __inline void 569ahd_print_path(struct ahd_softc *ahd, struct scb *scb) 570{ 571 xpt_print_path(scb->io_ctx->ccb_h.path); 572} 573 574static __inline void 575ahd_platform_dump_card_state(struct ahd_softc *ahd) 576{ 577 /* Nothing to do here for FreeBSD */ 578} 579/**************************** Transfer Settings *******************************/ 580void ahd_notify_xfer_settings_change(struct ahd_softc *, 581 struct ahd_devinfo *); 582void ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *, 583 int /*enable*/); 584 585/************************* Initialization/Teardown ****************************/ 586int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg); 587void ahd_platform_free(struct ahd_softc *ahd); 588int ahd_map_int(struct ahd_softc *ahd); 589int ahd_attach(struct ahd_softc *); 590int ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd); 591int ahd_detach(device_t); 592#define ahd_platform_init(arg) 593 594 595/****************************** Interrupts ************************************/ 596void ahd_platform_intr(void *); 597static __inline void ahd_platform_flushwork(struct ahd_softc *ahd); 598static __inline void 599ahd_platform_flushwork(struct ahd_softc *ahd) 600{ 601} 602 603/************************ Misc Function Declarations **************************/ 604void ahd_done(struct ahd_softc *ahd, struct scb *scb); 605void ahd_send_async(struct ahd_softc *, char /*channel*/, 606 u_int /*target*/, u_int /*lun*/, ac_code, void *arg); 607#endif /* _AIC79XX_FREEBSD_H_ */ 608