1/* 2 * Adaptec AIC7xxx device driver for Linux. 3 * 4 * Copyright (c) 1994 John Aycock 5 * The University of Calgary Department of Computer Science. 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, or (at your option) 10 * 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; see the file COPYING. If not, write to 19 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 20 * 21 * Copyright (c) 2000-2003 Adaptec Inc. 22 * All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions, and the following disclaimer, 29 * without modification. 30 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 31 * substantially similar to the "NO WARRANTY" disclaimer below 32 * ("Disclaimer") and any redistribution must be conditioned upon 33 * including a substantially similar Disclaimer requirement for further 34 * binary redistribution. 35 * 3. Neither the names of the above-listed copyright holders nor the names 36 * of any contributors may be used to endorse or promote products derived 37 * from this software without specific prior written permission. 38 * 39 * Alternatively, this software may be distributed under the terms of the 40 * GNU General Public License ("GPL") version 2 as published by the Free 41 * Software Foundation. 42 * 43 * NO WARRANTY 44 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 45 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 46 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 47 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 48 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 52 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 53 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 54 * POSSIBILITY OF SUCH DAMAGES. 55 * 56 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm.h#151 $ 57 * 58 */ 59#ifndef _AIC7XXX_LINUX_H_ 60#define _AIC7XXX_LINUX_H_ 61 62#include <linux/types.h> 63#include <linux/blkdev.h> 64#include <linux/delay.h> 65#include <linux/ioport.h> 66#include <linux/pci.h> 67#include <linux/interrupt.h> 68#include <linux/module.h> 69#include <linux/slab.h> 70#include <asm/byteorder.h> 71#include <asm/io.h> 72 73#include <scsi/scsi.h> 74#include <scsi/scsi_cmnd.h> 75#include <scsi/scsi_eh.h> 76#include <scsi/scsi_device.h> 77#include <scsi/scsi_host.h> 78#include <scsi/scsi_tcq.h> 79#include <scsi/scsi_transport.h> 80#include <scsi/scsi_transport_spi.h> 81 82/* Core SCSI definitions */ 83#define AIC_LIB_PREFIX ahc 84 85#include "cam.h" 86#include "queue.h" 87#include "scsi_message.h" 88#include "aiclib.h" 89 90/*********************************** Debugging ********************************/ 91#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE 92#ifdef CONFIG_AIC7XXX_DEBUG_MASK 93#define AHC_DEBUG 1 94#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK 95#else 96/* 97 * Compile in debugging code, but do not enable any printfs. 98 */ 99#define AHC_DEBUG 1 100#endif 101/* No debugging code. */ 102#endif 103 104/************************* Forward Declarations *******************************/ 105struct ahc_softc; 106typedef struct pci_dev *ahc_dev_softc_t; 107typedef struct scsi_cmnd *ahc_io_ctx_t; 108 109/******************************* Byte Order ***********************************/ 110#define ahc_htobe16(x) cpu_to_be16(x) 111#define ahc_htobe32(x) cpu_to_be32(x) 112#define ahc_htobe64(x) cpu_to_be64(x) 113#define ahc_htole16(x) cpu_to_le16(x) 114#define ahc_htole32(x) cpu_to_le32(x) 115#define ahc_htole64(x) cpu_to_le64(x) 116 117#define ahc_be16toh(x) be16_to_cpu(x) 118#define ahc_be32toh(x) be32_to_cpu(x) 119#define ahc_be64toh(x) be64_to_cpu(x) 120#define ahc_le16toh(x) le16_to_cpu(x) 121#define ahc_le32toh(x) le32_to_cpu(x) 122#define ahc_le64toh(x) le64_to_cpu(x) 123 124/************************* Configuration Data *********************************/ 125extern u_int aic7xxx_no_probe; 126extern u_int aic7xxx_allow_memio; 127extern struct scsi_host_template aic7xxx_driver_template; 128 129/***************************** Bus Space/DMA **********************************/ 130 131typedef uint32_t bus_size_t; 132 133typedef enum { 134 BUS_SPACE_MEMIO, 135 BUS_SPACE_PIO 136} bus_space_tag_t; 137 138typedef union { 139 u_long ioport; 140 volatile uint8_t __iomem *maddr; 141} bus_space_handle_t; 142 143typedef struct bus_dma_segment 144{ 145 dma_addr_t ds_addr; 146 bus_size_t ds_len; 147} bus_dma_segment_t; 148 149struct ahc_linux_dma_tag 150{ 151 bus_size_t alignment; 152 bus_size_t boundary; 153 bus_size_t maxsize; 154}; 155typedef struct ahc_linux_dma_tag* bus_dma_tag_t; 156 157typedef dma_addr_t bus_dmamap_t; 158 159typedef int bus_dma_filter_t(void*, dma_addr_t); 160typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); 161 162#define BUS_DMA_WAITOK 0x0 163#define BUS_DMA_NOWAIT 0x1 164#define BUS_DMA_ALLOCNOW 0x2 165#define BUS_DMA_LOAD_SEGS 0x4 /* 166 * Argument is an S/G list not 167 * a single buffer. 168 */ 169 170#define BUS_SPACE_MAXADDR 0xFFFFFFFF 171#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF 172#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF 173 174int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/, 175 bus_size_t /*alignment*/, bus_size_t /*boundary*/, 176 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, 177 bus_dma_filter_t*/*filter*/, void */*filterarg*/, 178 bus_size_t /*maxsize*/, int /*nsegments*/, 179 bus_size_t /*maxsegsz*/, int /*flags*/, 180 bus_dma_tag_t */*dma_tagp*/); 181 182void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/); 183 184int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 185 void** /*vaddr*/, int /*flags*/, 186 bus_dmamap_t* /*mapp*/); 187 188void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 189 void* /*vaddr*/, bus_dmamap_t /*map*/); 190 191void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/, 192 bus_dmamap_t /*map*/); 193 194int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/, 195 bus_dmamap_t /*map*/, void * /*buf*/, 196 bus_size_t /*buflen*/, bus_dmamap_callback_t *, 197 void */*callback_arg*/, int /*flags*/); 198 199int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t); 200 201/* 202 * Operations performed by ahc_dmamap_sync(). 203 */ 204#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ 205#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ 206#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ 207#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ 208 209/* 210 * XXX 211 * ahc_dmamap_sync is only used on buffers allocated with 212 * the pci_alloc_consistent() API. Although I'm not sure how 213 * this works on architectures with a write buffer, Linux does 214 * not have an API to sync "coherent" memory. Perhaps we need 215 * to do an mb()? 216 */ 217#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) 218 219/********************************** Includes **********************************/ 220#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT 221#define AIC_DEBUG_REGISTERS 1 222#else 223#define AIC_DEBUG_REGISTERS 0 224#endif 225#include "aic7xxx.h" 226 227/***************************** Timer Facilities *******************************/ 228static inline void 229ahc_scb_timer_reset(struct scb *scb, u_int usec) 230{ 231} 232 233/***************************** SMP support ************************************/ 234#include <linux/spinlock.h> 235 236#define AIC7XXX_DRIVER_VERSION "7.0" 237 238/*************************** Device Data Structures ***************************/ 239/* 240 * A per probed device structure used to deal with some error recovery 241 * scenarios that the Linux mid-layer code just doesn't know how to 242 * handle. The structure allocated for a device only becomes persistent 243 * after a successfully completed inquiry command to the target when 244 * that inquiry data indicates a lun is present. 245 */ 246typedef enum { 247 AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ 248 AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ 249 AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ 250 AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ 251} ahc_linux_dev_flags; 252 253struct ahc_linux_device { 254 /* 255 * The number of transactions currently 256 * queued to the device. 257 */ 258 int active; 259 260 /* 261 * The currently allowed number of 262 * transactions that can be queued to 263 * the device. Must be signed for 264 * conversion from tagged to untagged 265 * mode where the device may have more 266 * than one outstanding active transaction. 267 */ 268 int openings; 269 270 /* 271 * A positive count indicates that this 272 * device's queue is halted. 273 */ 274 u_int qfrozen; 275 276 /* 277 * Cumulative command counter. 278 */ 279 u_long commands_issued; 280 281 /* 282 * The number of tagged transactions when 283 * running at our current opening level 284 * that have been successfully received by 285 * this device since the last QUEUE FULL. 286 */ 287 u_int tag_success_count; 288#define AHC_TAG_SUCCESS_INTERVAL 50 289 290 ahc_linux_dev_flags flags; 291 292 /* 293 * The high limit for the tags variable. 294 */ 295 u_int maxtags; 296 297 /* 298 * The computed number of tags outstanding 299 * at the time of the last QUEUE FULL event. 300 */ 301 u_int tags_on_last_queuefull; 302 303 /* 304 * How many times we have seen a queue full 305 * with the same number of tags. This is used 306 * to stop our adaptive queue depth algorithm 307 * on devices with a fixed number of tags. 308 */ 309 u_int last_queuefull_same_count; 310#define AHC_LOCK_TAGS_COUNT 50 311 312 /* 313 * How many transactions have been queued 314 * without the device going idle. We use 315 * this statistic to determine when to issue 316 * an ordered tag to prevent transaction 317 * starvation. This statistic is only updated 318 * if the AHC_DEV_PERIODIC_OTAG flag is set 319 * on this device. 320 */ 321 u_int commands_since_idle_or_otag; 322#define AHC_OTAG_THRESH 500 323}; 324 325/********************* Definitions Required by the Core ***********************/ 326/* 327 * Number of SG segments we require. So long as the S/G segments for 328 * a particular transaction are allocated in a physically contiguous 329 * manner and are allocated below 4GB, the number of S/G segments is 330 * unrestricted. 331 */ 332#define AHC_NSEG 128 333 334/* 335 * Per-SCB OSM storage. 336 */ 337struct scb_platform_data { 338 struct ahc_linux_device *dev; 339 dma_addr_t buf_busaddr; 340 uint32_t xfer_len; 341 uint32_t sense_resid; /* Auto-Sense residual */ 342}; 343 344/* 345 * Define a structure used for each host adapter. All members are 346 * aligned on a boundary >= the size of the member to honor the 347 * alignment restrictions of the various platforms supported by 348 * this driver. 349 */ 350struct ahc_platform_data { 351 /* 352 * Fields accessed from interrupt context. 353 */ 354 struct scsi_target *starget[AHC_NUM_TARGETS]; 355 356 spinlock_t spin_lock; 357 u_int qfrozen; 358 struct completion *eh_done; 359 struct Scsi_Host *host; /* pointer to scsi host */ 360#define AHC_LINUX_NOIRQ ((uint32_t)~0) 361 uint32_t irq; /* IRQ for this adapter */ 362 uint32_t bios_address; 363 resource_size_t mem_busaddr; /* Mem Base Addr */ 364}; 365 366void ahc_delay(long); 367 368 369/***************************** Low Level I/O **********************************/ 370uint8_t ahc_inb(struct ahc_softc * ahc, long port); 371void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val); 372void ahc_outsb(struct ahc_softc * ahc, long port, 373 uint8_t *, int count); 374void ahc_insb(struct ahc_softc * ahc, long port, 375 uint8_t *, int count); 376 377/**************************** Initialization **********************************/ 378int ahc_linux_register_host(struct ahc_softc *, 379 struct scsi_host_template *); 380 381/******************************** Locking *************************************/ 382/* Lock protecting internal data structures */ 383 384static inline void 385ahc_lockinit(struct ahc_softc *ahc) 386{ 387 spin_lock_init(&ahc->platform_data->spin_lock); 388} 389 390static inline void 391ahc_lock(struct ahc_softc *ahc, unsigned long *flags) 392{ 393 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags); 394} 395 396static inline void 397ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) 398{ 399 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); 400} 401 402/******************************* PCI Definitions ******************************/ 403/* 404 * PCIM_xxx: mask to locate subfield in register 405 * PCIR_xxx: config register offset 406 * PCIC_xxx: device class 407 * PCIS_xxx: device subclass 408 * PCIP_xxx: device programming interface 409 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) 410 * PCID_xxx: device ID 411 */ 412#define PCIR_DEVVENDOR 0x00 413#define PCIR_VENDOR 0x00 414#define PCIR_DEVICE 0x02 415#define PCIR_COMMAND 0x04 416#define PCIM_CMD_PORTEN 0x0001 417#define PCIM_CMD_MEMEN 0x0002 418#define PCIM_CMD_BUSMASTEREN 0x0004 419#define PCIM_CMD_MWRICEN 0x0010 420#define PCIM_CMD_PERRESPEN 0x0040 421#define PCIM_CMD_SERRESPEN 0x0100 422#define PCIR_STATUS 0x06 423#define PCIR_REVID 0x08 424#define PCIR_PROGIF 0x09 425#define PCIR_SUBCLASS 0x0a 426#define PCIR_CLASS 0x0b 427#define PCIR_CACHELNSZ 0x0c 428#define PCIR_LATTIMER 0x0d 429#define PCIR_HEADERTYPE 0x0e 430#define PCIM_MFDEV 0x80 431#define PCIR_BIST 0x0f 432#define PCIR_CAP_PTR 0x34 433 434/* config registers for header type 0 devices */ 435#define PCIR_MAPS 0x10 436#define PCIR_SUBVEND_0 0x2c 437#define PCIR_SUBDEV_0 0x2e 438 439typedef enum 440{ 441 AHC_POWER_STATE_D0, 442 AHC_POWER_STATE_D1, 443 AHC_POWER_STATE_D2, 444 AHC_POWER_STATE_D3 445} ahc_power_state; 446 447/**************************** VL/EISA Routines ********************************/ 448#ifdef CONFIG_EISA 449int ahc_linux_eisa_init(void); 450void ahc_linux_eisa_exit(void); 451int aic7770_map_registers(struct ahc_softc *ahc, 452 u_int port); 453int aic7770_map_int(struct ahc_softc *ahc, u_int irq); 454#else 455static inline int ahc_linux_eisa_init(void) { 456 return -ENODEV; 457} 458static inline void ahc_linux_eisa_exit(void) { 459} 460#endif 461 462/******************************* PCI Routines *********************************/ 463#ifdef CONFIG_PCI 464int ahc_linux_pci_init(void); 465void ahc_linux_pci_exit(void); 466int ahc_pci_map_registers(struct ahc_softc *ahc); 467int ahc_pci_map_int(struct ahc_softc *ahc); 468 469uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, 470 int reg, int width); 471 472void ahc_pci_write_config(ahc_dev_softc_t pci, 473 int reg, uint32_t value, 474 int width); 475 476static inline int ahc_get_pci_function(ahc_dev_softc_t); 477static inline int 478ahc_get_pci_function(ahc_dev_softc_t pci) 479{ 480 return (PCI_FUNC(pci->devfn)); 481} 482 483static inline int ahc_get_pci_slot(ahc_dev_softc_t); 484static inline int 485ahc_get_pci_slot(ahc_dev_softc_t pci) 486{ 487 return (PCI_SLOT(pci->devfn)); 488} 489 490static inline int ahc_get_pci_bus(ahc_dev_softc_t); 491static inline int 492ahc_get_pci_bus(ahc_dev_softc_t pci) 493{ 494 return (pci->bus->number); 495} 496#else 497static inline int ahc_linux_pci_init(void) { 498 return 0; 499} 500static inline void ahc_linux_pci_exit(void) { 501} 502#endif 503 504static inline void ahc_flush_device_writes(struct ahc_softc *); 505static inline void 506ahc_flush_device_writes(struct ahc_softc *ahc) 507{ 508 /* XXX Is this sufficient for all architectures??? */ 509 ahc_inb(ahc, INTSTAT); 510} 511 512/**************************** Proc FS Support *********************************/ 513int ahc_proc_write_seeprom(struct Scsi_Host *, char *, int); 514int ahc_linux_show_info(struct seq_file *, struct Scsi_Host *); 515 516/*************************** Domain Validation ********************************/ 517/*********************** Transaction Access Wrappers *************************/ 518static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); 519static inline void ahc_set_transaction_status(struct scb *, uint32_t); 520static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t); 521static inline void ahc_set_scsi_status(struct scb *, uint32_t); 522static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd); 523static inline uint32_t ahc_get_transaction_status(struct scb *); 524static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd); 525static inline uint32_t ahc_get_scsi_status(struct scb *); 526static inline void ahc_set_transaction_tag(struct scb *, int, u_int); 527static inline u_long ahc_get_transfer_length(struct scb *); 528static inline int ahc_get_transfer_dir(struct scb *); 529static inline void ahc_set_residual(struct scb *, u_long); 530static inline void ahc_set_sense_residual(struct scb *scb, u_long resid); 531static inline u_long ahc_get_residual(struct scb *); 532static inline u_long ahc_get_sense_residual(struct scb *); 533static inline int ahc_perform_autosense(struct scb *); 534static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, 535 struct scb *); 536static inline void ahc_notify_xfer_settings_change(struct ahc_softc *, 537 struct ahc_devinfo *); 538static inline void ahc_platform_scb_free(struct ahc_softc *ahc, 539 struct scb *scb); 540static inline void ahc_freeze_scb(struct scb *scb); 541 542static inline 543void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) 544{ 545 cmd->result &= ~(CAM_STATUS_MASK << 16); 546 cmd->result |= status << 16; 547} 548 549static inline 550void ahc_set_transaction_status(struct scb *scb, uint32_t status) 551{ 552 ahc_cmd_set_transaction_status(scb->io_ctx,status); 553} 554 555static inline 556void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) 557{ 558 cmd->result &= ~0xFFFF; 559 cmd->result |= status; 560} 561 562static inline 563void ahc_set_scsi_status(struct scb *scb, uint32_t status) 564{ 565 ahc_cmd_set_scsi_status(scb->io_ctx, status); 566} 567 568static inline 569uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd) 570{ 571 return ((cmd->result >> 16) & CAM_STATUS_MASK); 572} 573 574static inline 575uint32_t ahc_get_transaction_status(struct scb *scb) 576{ 577 return (ahc_cmd_get_transaction_status(scb->io_ctx)); 578} 579 580static inline 581uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd) 582{ 583 return (cmd->result & 0xFFFF); 584} 585 586static inline 587uint32_t ahc_get_scsi_status(struct scb *scb) 588{ 589 return (ahc_cmd_get_scsi_status(scb->io_ctx)); 590} 591 592static inline 593void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) 594{ 595 /* 596 * Nothing to do for linux as the incoming transaction 597 * has no concept of tag/non tagged, etc. 598 */ 599} 600 601static inline 602u_long ahc_get_transfer_length(struct scb *scb) 603{ 604 return (scb->platform_data->xfer_len); 605} 606 607static inline 608int ahc_get_transfer_dir(struct scb *scb) 609{ 610 return (scb->io_ctx->sc_data_direction); 611} 612 613static inline 614void ahc_set_residual(struct scb *scb, u_long resid) 615{ 616 scsi_set_resid(scb->io_ctx, resid); 617} 618 619static inline 620void ahc_set_sense_residual(struct scb *scb, u_long resid) 621{ 622 scb->platform_data->sense_resid = resid; 623} 624 625static inline 626u_long ahc_get_residual(struct scb *scb) 627{ 628 return scsi_get_resid(scb->io_ctx); 629} 630 631static inline 632u_long ahc_get_sense_residual(struct scb *scb) 633{ 634 return (scb->platform_data->sense_resid); 635} 636 637static inline 638int ahc_perform_autosense(struct scb *scb) 639{ 640 /* 641 * We always perform autosense in Linux. 642 * On other platforms this is set on a 643 * per-transaction basis. 644 */ 645 return (1); 646} 647 648static inline uint32_t 649ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) 650{ 651 return (sizeof(struct scsi_sense_data)); 652} 653 654static inline void 655ahc_notify_xfer_settings_change(struct ahc_softc *ahc, 656 struct ahc_devinfo *devinfo) 657{ 658 /* Nothing to do here for linux */ 659} 660 661static inline void 662ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) 663{ 664} 665 666int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); 667void ahc_platform_free(struct ahc_softc *ahc); 668void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb); 669 670static inline void 671ahc_freeze_scb(struct scb *scb) 672{ 673 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { 674 scb->io_ctx->result |= CAM_DEV_QFRZN << 16; 675 scb->platform_data->dev->qfrozen++; 676 } 677} 678 679void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, 680 struct ahc_devinfo *devinfo, ahc_queue_alg); 681int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, 682 char channel, int lun, u_int tag, 683 role_t role, uint32_t status); 684irqreturn_t 685 ahc_linux_isr(int irq, void *dev_id); 686void ahc_platform_flushwork(struct ahc_softc *ahc); 687void ahc_done(struct ahc_softc*, struct scb*); 688void ahc_send_async(struct ahc_softc *, char channel, 689 u_int target, u_int lun, ac_code); 690void ahc_print_path(struct ahc_softc *, struct scb *); 691 692#ifdef CONFIG_PCI 693#define AHC_PCI_CONFIG 1 694#else 695#define AHC_PCI_CONFIG 0 696#endif 697#define bootverbose aic7xxx_verbose 698extern u_int aic7xxx_verbose; 699#endif /* _AIC7XXX_LINUX_H_ */ 700