aic7xxx_osm.h revision 6b3a8bbfd15ca86da496845890a48bee27b423e4
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/* Name space conflict with BSD queue macros */ 86#ifdef LIST_HEAD 87#undef LIST_HEAD 88#endif 89 90#include "cam.h" 91#include "queue.h" 92#include "scsi_message.h" 93#include "aiclib.h" 94 95/*********************************** Debugging ********************************/ 96#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE 97#ifdef CONFIG_AIC7XXX_DEBUG_MASK 98#define AHC_DEBUG 1 99#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK 100#else 101/* 102 * Compile in debugging code, but do not enable any printfs. 103 */ 104#define AHC_DEBUG 1 105#endif 106/* No debugging code. */ 107#endif 108 109/************************* Forward Declarations *******************************/ 110struct ahc_softc; 111typedef struct pci_dev *ahc_dev_softc_t; 112typedef struct scsi_cmnd *ahc_io_ctx_t; 113 114/******************************* Byte Order ***********************************/ 115#define ahc_htobe16(x) cpu_to_be16(x) 116#define ahc_htobe32(x) cpu_to_be32(x) 117#define ahc_htobe64(x) cpu_to_be64(x) 118#define ahc_htole16(x) cpu_to_le16(x) 119#define ahc_htole32(x) cpu_to_le32(x) 120#define ahc_htole64(x) cpu_to_le64(x) 121 122#define ahc_be16toh(x) be16_to_cpu(x) 123#define ahc_be32toh(x) be32_to_cpu(x) 124#define ahc_be64toh(x) be64_to_cpu(x) 125#define ahc_le16toh(x) le16_to_cpu(x) 126#define ahc_le32toh(x) le32_to_cpu(x) 127#define ahc_le64toh(x) le64_to_cpu(x) 128 129/************************* Configuration Data *********************************/ 130extern u_int aic7xxx_no_probe; 131extern u_int aic7xxx_allow_memio; 132extern struct scsi_host_template aic7xxx_driver_template; 133 134/***************************** Bus Space/DMA **********************************/ 135 136typedef uint32_t bus_size_t; 137 138typedef enum { 139 BUS_SPACE_MEMIO, 140 BUS_SPACE_PIO 141} bus_space_tag_t; 142 143typedef union { 144 u_long ioport; 145 volatile uint8_t __iomem *maddr; 146} bus_space_handle_t; 147 148typedef struct bus_dma_segment 149{ 150 dma_addr_t ds_addr; 151 bus_size_t ds_len; 152} bus_dma_segment_t; 153 154struct ahc_linux_dma_tag 155{ 156 bus_size_t alignment; 157 bus_size_t boundary; 158 bus_size_t maxsize; 159}; 160typedef struct ahc_linux_dma_tag* bus_dma_tag_t; 161 162typedef dma_addr_t bus_dmamap_t; 163 164typedef int bus_dma_filter_t(void*, dma_addr_t); 165typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); 166 167#define BUS_DMA_WAITOK 0x0 168#define BUS_DMA_NOWAIT 0x1 169#define BUS_DMA_ALLOCNOW 0x2 170#define BUS_DMA_LOAD_SEGS 0x4 /* 171 * Argument is an S/G list not 172 * a single buffer. 173 */ 174 175#define BUS_SPACE_MAXADDR 0xFFFFFFFF 176#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF 177#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF 178 179int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/, 180 bus_size_t /*alignment*/, bus_size_t /*boundary*/, 181 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, 182 bus_dma_filter_t*/*filter*/, void */*filterarg*/, 183 bus_size_t /*maxsize*/, int /*nsegments*/, 184 bus_size_t /*maxsegsz*/, int /*flags*/, 185 bus_dma_tag_t */*dma_tagp*/); 186 187void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/); 188 189int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 190 void** /*vaddr*/, int /*flags*/, 191 bus_dmamap_t* /*mapp*/); 192 193void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/, 194 void* /*vaddr*/, bus_dmamap_t /*map*/); 195 196void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/, 197 bus_dmamap_t /*map*/); 198 199int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/, 200 bus_dmamap_t /*map*/, void * /*buf*/, 201 bus_size_t /*buflen*/, bus_dmamap_callback_t *, 202 void */*callback_arg*/, int /*flags*/); 203 204int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t); 205 206/* 207 * Operations performed by ahc_dmamap_sync(). 208 */ 209#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ 210#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ 211#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ 212#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ 213 214/* 215 * XXX 216 * ahc_dmamap_sync is only used on buffers allocated with 217 * the pci_alloc_consistent() API. Although I'm not sure how 218 * this works on architectures with a write buffer, Linux does 219 * not have an API to sync "coherent" memory. Perhaps we need 220 * to do an mb()? 221 */ 222#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) 223 224/********************************** Includes **********************************/ 225#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT 226#define AIC_DEBUG_REGISTERS 1 227#else 228#define AIC_DEBUG_REGISTERS 0 229#endif 230#include "aic7xxx.h" 231 232/***************************** Timer Facilities *******************************/ 233static inline void 234ahc_scb_timer_reset(struct scb *scb, u_int usec) 235{ 236} 237 238/***************************** SMP support ************************************/ 239#include <linux/spinlock.h> 240 241#define AIC7XXX_DRIVER_VERSION "7.0" 242 243/*************************** Device Data Structures ***************************/ 244/* 245 * A per probed device structure used to deal with some error recovery 246 * scenarios that the Linux mid-layer code just doesn't know how to 247 * handle. The structure allocated for a device only becomes persistent 248 * after a successfully completed inquiry command to the target when 249 * that inquiry data indicates a lun is present. 250 */ 251typedef enum { 252 AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ 253 AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ 254 AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ 255 AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ 256} ahc_linux_dev_flags; 257 258struct ahc_linux_device { 259 /* 260 * The number of transactions currently 261 * queued to the device. 262 */ 263 int active; 264 265 /* 266 * The currently allowed number of 267 * transactions that can be queued to 268 * the device. Must be signed for 269 * conversion from tagged to untagged 270 * mode where the device may have more 271 * than one outstanding active transaction. 272 */ 273 int openings; 274 275 /* 276 * A positive count indicates that this 277 * device's queue is halted. 278 */ 279 u_int qfrozen; 280 281 /* 282 * Cumulative command counter. 283 */ 284 u_long commands_issued; 285 286 /* 287 * The number of tagged transactions when 288 * running at our current opening level 289 * that have been successfully received by 290 * this device since the last QUEUE FULL. 291 */ 292 u_int tag_success_count; 293#define AHC_TAG_SUCCESS_INTERVAL 50 294 295 ahc_linux_dev_flags flags; 296 297 /* 298 * The high limit for the tags variable. 299 */ 300 u_int maxtags; 301 302 /* 303 * The computed number of tags outstanding 304 * at the time of the last QUEUE FULL event. 305 */ 306 u_int tags_on_last_queuefull; 307 308 /* 309 * How many times we have seen a queue full 310 * with the same number of tags. This is used 311 * to stop our adaptive queue depth algorithm 312 * on devices with a fixed number of tags. 313 */ 314 u_int last_queuefull_same_count; 315#define AHC_LOCK_TAGS_COUNT 50 316 317 /* 318 * How many transactions have been queued 319 * without the device going idle. We use 320 * this statistic to determine when to issue 321 * an ordered tag to prevent transaction 322 * starvation. This statistic is only updated 323 * if the AHC_DEV_PERIODIC_OTAG flag is set 324 * on this device. 325 */ 326 u_int commands_since_idle_or_otag; 327#define AHC_OTAG_THRESH 500 328}; 329 330/********************* Definitions Required by the Core ***********************/ 331/* 332 * Number of SG segments we require. So long as the S/G segments for 333 * a particular transaction are allocated in a physically contiguous 334 * manner and are allocated below 4GB, the number of S/G segments is 335 * unrestricted. 336 */ 337#define AHC_NSEG 128 338 339/* 340 * Per-SCB OSM storage. 341 */ 342struct scb_platform_data { 343 struct ahc_linux_device *dev; 344 dma_addr_t buf_busaddr; 345 uint32_t xfer_len; 346 uint32_t sense_resid; /* Auto-Sense residual */ 347}; 348 349/* 350 * Define a structure used for each host adapter. All members are 351 * aligned on a boundary >= the size of the member to honor the 352 * alignment restrictions of the various platforms supported by 353 * this driver. 354 */ 355struct ahc_platform_data { 356 /* 357 * Fields accessed from interrupt context. 358 */ 359 struct scsi_target *starget[AHC_NUM_TARGETS]; 360 361 spinlock_t spin_lock; 362 u_int qfrozen; 363 struct completion *eh_done; 364 struct Scsi_Host *host; /* pointer to scsi host */ 365#define AHC_LINUX_NOIRQ ((uint32_t)~0) 366 uint32_t irq; /* IRQ for this adapter */ 367 uint32_t bios_address; 368 resource_size_t mem_busaddr; /* Mem Base Addr */ 369}; 370 371void ahc_delay(long); 372 373 374/***************************** Low Level I/O **********************************/ 375uint8_t ahc_inb(struct ahc_softc * ahc, long port); 376void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val); 377void ahc_outsb(struct ahc_softc * ahc, long port, 378 uint8_t *, int count); 379void ahc_insb(struct ahc_softc * ahc, long port, 380 uint8_t *, int count); 381 382/**************************** Initialization **********************************/ 383int ahc_linux_register_host(struct ahc_softc *, 384 struct scsi_host_template *); 385 386/******************************** Locking *************************************/ 387/* Lock protecting internal data structures */ 388 389static inline void 390ahc_lockinit(struct ahc_softc *ahc) 391{ 392 spin_lock_init(&ahc->platform_data->spin_lock); 393} 394 395static inline void 396ahc_lock(struct ahc_softc *ahc, unsigned long *flags) 397{ 398 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags); 399} 400 401static inline void 402ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) 403{ 404 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); 405} 406 407/******************************* PCI Definitions ******************************/ 408/* 409 * PCIM_xxx: mask to locate subfield in register 410 * PCIR_xxx: config register offset 411 * PCIC_xxx: device class 412 * PCIS_xxx: device subclass 413 * PCIP_xxx: device programming interface 414 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) 415 * PCID_xxx: device ID 416 */ 417#define PCIR_DEVVENDOR 0x00 418#define PCIR_VENDOR 0x00 419#define PCIR_DEVICE 0x02 420#define PCIR_COMMAND 0x04 421#define PCIM_CMD_PORTEN 0x0001 422#define PCIM_CMD_MEMEN 0x0002 423#define PCIM_CMD_BUSMASTEREN 0x0004 424#define PCIM_CMD_MWRICEN 0x0010 425#define PCIM_CMD_PERRESPEN 0x0040 426#define PCIM_CMD_SERRESPEN 0x0100 427#define PCIR_STATUS 0x06 428#define PCIR_REVID 0x08 429#define PCIR_PROGIF 0x09 430#define PCIR_SUBCLASS 0x0a 431#define PCIR_CLASS 0x0b 432#define PCIR_CACHELNSZ 0x0c 433#define PCIR_LATTIMER 0x0d 434#define PCIR_HEADERTYPE 0x0e 435#define PCIM_MFDEV 0x80 436#define PCIR_BIST 0x0f 437#define PCIR_CAP_PTR 0x34 438 439/* config registers for header type 0 devices */ 440#define PCIR_MAPS 0x10 441#define PCIR_SUBVEND_0 0x2c 442#define PCIR_SUBDEV_0 0x2e 443 444typedef enum 445{ 446 AHC_POWER_STATE_D0, 447 AHC_POWER_STATE_D1, 448 AHC_POWER_STATE_D2, 449 AHC_POWER_STATE_D3 450} ahc_power_state; 451 452/**************************** VL/EISA Routines ********************************/ 453#ifdef CONFIG_EISA 454int ahc_linux_eisa_init(void); 455void ahc_linux_eisa_exit(void); 456int aic7770_map_registers(struct ahc_softc *ahc, 457 u_int port); 458int aic7770_map_int(struct ahc_softc *ahc, u_int irq); 459#else 460static inline int ahc_linux_eisa_init(void) { 461 return -ENODEV; 462} 463static inline void ahc_linux_eisa_exit(void) { 464} 465#endif 466 467/******************************* PCI Routines *********************************/ 468#ifdef CONFIG_PCI 469int ahc_linux_pci_init(void); 470void ahc_linux_pci_exit(void); 471int ahc_pci_map_registers(struct ahc_softc *ahc); 472int ahc_pci_map_int(struct ahc_softc *ahc); 473 474uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, 475 int reg, int width); 476 477void ahc_pci_write_config(ahc_dev_softc_t pci, 478 int reg, uint32_t value, 479 int width); 480 481static inline int ahc_get_pci_function(ahc_dev_softc_t); 482static inline int 483ahc_get_pci_function(ahc_dev_softc_t pci) 484{ 485 return (PCI_FUNC(pci->devfn)); 486} 487 488static inline int ahc_get_pci_slot(ahc_dev_softc_t); 489static inline int 490ahc_get_pci_slot(ahc_dev_softc_t pci) 491{ 492 return (PCI_SLOT(pci->devfn)); 493} 494 495static inline int ahc_get_pci_bus(ahc_dev_softc_t); 496static inline int 497ahc_get_pci_bus(ahc_dev_softc_t pci) 498{ 499 return (pci->bus->number); 500} 501#else 502static inline int ahc_linux_pci_init(void) { 503 return 0; 504} 505static inline void ahc_linux_pci_exit(void) { 506} 507#endif 508 509static inline void ahc_flush_device_writes(struct ahc_softc *); 510static inline void 511ahc_flush_device_writes(struct ahc_softc *ahc) 512{ 513 /* XXX Is this sufficient for all architectures??? */ 514 ahc_inb(ahc, INTSTAT); 515} 516 517/**************************** Proc FS Support *********************************/ 518int ahc_proc_write_seeprom(struct Scsi_Host *, char *, int); 519int ahc_linux_show_info(struct seq_file *, struct Scsi_Host *); 520 521/*************************** Domain Validation ********************************/ 522/*********************** Transaction Access Wrappers *************************/ 523static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); 524static inline void ahc_set_transaction_status(struct scb *, uint32_t); 525static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t); 526static inline void ahc_set_scsi_status(struct scb *, uint32_t); 527static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd); 528static inline uint32_t ahc_get_transaction_status(struct scb *); 529static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd); 530static inline uint32_t ahc_get_scsi_status(struct scb *); 531static inline void ahc_set_transaction_tag(struct scb *, int, u_int); 532static inline u_long ahc_get_transfer_length(struct scb *); 533static inline int ahc_get_transfer_dir(struct scb *); 534static inline void ahc_set_residual(struct scb *, u_long); 535static inline void ahc_set_sense_residual(struct scb *scb, u_long resid); 536static inline u_long ahc_get_residual(struct scb *); 537static inline u_long ahc_get_sense_residual(struct scb *); 538static inline int ahc_perform_autosense(struct scb *); 539static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, 540 struct scb *); 541static inline void ahc_notify_xfer_settings_change(struct ahc_softc *, 542 struct ahc_devinfo *); 543static inline void ahc_platform_scb_free(struct ahc_softc *ahc, 544 struct scb *scb); 545static inline void ahc_freeze_scb(struct scb *scb); 546 547static inline 548void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) 549{ 550 cmd->result &= ~(CAM_STATUS_MASK << 16); 551 cmd->result |= status << 16; 552} 553 554static inline 555void ahc_set_transaction_status(struct scb *scb, uint32_t status) 556{ 557 ahc_cmd_set_transaction_status(scb->io_ctx,status); 558} 559 560static inline 561void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) 562{ 563 cmd->result &= ~0xFFFF; 564 cmd->result |= status; 565} 566 567static inline 568void ahc_set_scsi_status(struct scb *scb, uint32_t status) 569{ 570 ahc_cmd_set_scsi_status(scb->io_ctx, status); 571} 572 573static inline 574uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd) 575{ 576 return ((cmd->result >> 16) & CAM_STATUS_MASK); 577} 578 579static inline 580uint32_t ahc_get_transaction_status(struct scb *scb) 581{ 582 return (ahc_cmd_get_transaction_status(scb->io_ctx)); 583} 584 585static inline 586uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd) 587{ 588 return (cmd->result & 0xFFFF); 589} 590 591static inline 592uint32_t ahc_get_scsi_status(struct scb *scb) 593{ 594 return (ahc_cmd_get_scsi_status(scb->io_ctx)); 595} 596 597static inline 598void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) 599{ 600 /* 601 * Nothing to do for linux as the incoming transaction 602 * has no concept of tag/non tagged, etc. 603 */ 604} 605 606static inline 607u_long ahc_get_transfer_length(struct scb *scb) 608{ 609 return (scb->platform_data->xfer_len); 610} 611 612static inline 613int ahc_get_transfer_dir(struct scb *scb) 614{ 615 return (scb->io_ctx->sc_data_direction); 616} 617 618static inline 619void ahc_set_residual(struct scb *scb, u_long resid) 620{ 621 scsi_set_resid(scb->io_ctx, resid); 622} 623 624static inline 625void ahc_set_sense_residual(struct scb *scb, u_long resid) 626{ 627 scb->platform_data->sense_resid = resid; 628} 629 630static inline 631u_long ahc_get_residual(struct scb *scb) 632{ 633 return scsi_get_resid(scb->io_ctx); 634} 635 636static inline 637u_long ahc_get_sense_residual(struct scb *scb) 638{ 639 return (scb->platform_data->sense_resid); 640} 641 642static inline 643int ahc_perform_autosense(struct scb *scb) 644{ 645 /* 646 * We always perform autosense in Linux. 647 * On other platforms this is set on a 648 * per-transaction basis. 649 */ 650 return (1); 651} 652 653static inline uint32_t 654ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) 655{ 656 return (sizeof(struct scsi_sense_data)); 657} 658 659static inline void 660ahc_notify_xfer_settings_change(struct ahc_softc *ahc, 661 struct ahc_devinfo *devinfo) 662{ 663 /* Nothing to do here for linux */ 664} 665 666static inline void 667ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) 668{ 669} 670 671int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); 672void ahc_platform_free(struct ahc_softc *ahc); 673void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb); 674 675static inline void 676ahc_freeze_scb(struct scb *scb) 677{ 678 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { 679 scb->io_ctx->result |= CAM_DEV_QFRZN << 16; 680 scb->platform_data->dev->qfrozen++; 681 } 682} 683 684void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, 685 struct ahc_devinfo *devinfo, ahc_queue_alg); 686int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, 687 char channel, int lun, u_int tag, 688 role_t role, uint32_t status); 689irqreturn_t 690 ahc_linux_isr(int irq, void *dev_id); 691void ahc_platform_flushwork(struct ahc_softc *ahc); 692void ahc_done(struct ahc_softc*, struct scb*); 693void ahc_send_async(struct ahc_softc *, char channel, 694 u_int target, u_int lun, ac_code); 695void ahc_print_path(struct ahc_softc *, struct scb *); 696void ahc_platform_dump_card_state(struct ahc_softc *ahc); 697 698#ifdef CONFIG_PCI 699#define AHC_PCI_CONFIG 1 700#else 701#define AHC_PCI_CONFIG 0 702#endif 703#define bootverbose aic7xxx_verbose 704extern u_int aic7xxx_verbose; 705#endif /* _AIC7XXX_LINUX_H_ */ 706