2 * Adaptec AIC7xxx device driver for Linux.
4 * Copyright (c) 1994 John Aycock
5 * The University of Calgary Department of Computer Science.
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)
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.
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.
21 * Copyright (c) 2000-2003 Adaptec Inc.
22 * All rights reserved.
24 * Redistribution and use in source and binary forms, with or without
25 * modification, are permitted provided that the following conditions
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.
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.
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.
56 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm.h#151 $
59 #ifndef _AIC7XXX_LINUX_H_
60 #define _AIC7XXX_LINUX_H_
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/smp_lock.h>
68 #include <linux/interrupt.h>
69 #include <linux/module.h>
70 #include <linux/slab.h>
71 #include <asm/byteorder.h>
74 #include <scsi/scsi.h>
75 #include <scsi/scsi_cmnd.h>
76 #include <scsi/scsi_eh.h>
77 #include <scsi/scsi_device.h>
78 #include <scsi/scsi_host.h>
79 #include <scsi/scsi_tcq.h>
80 #include <scsi/scsi_transport.h>
81 #include <scsi/scsi_transport_spi.h>
83 /* Core SCSI definitions */
84 #define AIC_LIB_PREFIX ahc
86 /* Name space conflict with BSD queue macros */
93 #include "scsi_message.h"
96 /*********************************** Debugging ********************************/
97 #ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
98 #ifdef CONFIG_AIC7XXX_DEBUG_MASK
100 #define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
103 * Compile in debugging code, but do not enable any printfs.
107 /* No debugging code. */
110 /************************* Forward Declarations *******************************/
112 typedef struct pci_dev *ahc_dev_softc_t;
113 typedef struct scsi_cmnd *ahc_io_ctx_t;
115 /******************************* Byte Order ***********************************/
116 #define ahc_htobe16(x) cpu_to_be16(x)
117 #define ahc_htobe32(x) cpu_to_be32(x)
118 #define ahc_htobe64(x) cpu_to_be64(x)
119 #define ahc_htole16(x) cpu_to_le16(x)
120 #define ahc_htole32(x) cpu_to_le32(x)
121 #define ahc_htole64(x) cpu_to_le64(x)
123 #define ahc_be16toh(x) be16_to_cpu(x)
124 #define ahc_be32toh(x) be32_to_cpu(x)
125 #define ahc_be64toh(x) be64_to_cpu(x)
126 #define ahc_le16toh(x) le16_to_cpu(x)
127 #define ahc_le32toh(x) le32_to_cpu(x)
128 #define ahc_le64toh(x) le64_to_cpu(x)
130 /************************* Configuration Data *********************************/
131 extern u_int aic7xxx_no_probe;
132 extern u_int aic7xxx_allow_memio;
133 extern struct scsi_host_template aic7xxx_driver_template;
135 /***************************** Bus Space/DMA **********************************/
137 typedef uint32_t bus_size_t;
146 volatile uint8_t __iomem *maddr;
147 } bus_space_handle_t;
149 typedef struct bus_dma_segment
155 struct ahc_linux_dma_tag
157 bus_size_t alignment;
161 typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
163 typedef dma_addr_t bus_dmamap_t;
165 typedef int bus_dma_filter_t(void*, dma_addr_t);
166 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
168 #define BUS_DMA_WAITOK 0x0
169 #define BUS_DMA_NOWAIT 0x1
170 #define BUS_DMA_ALLOCNOW 0x2
171 #define BUS_DMA_LOAD_SEGS 0x4 /*
172 * Argument is an S/G list not
176 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
177 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
178 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
180 int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/,
181 bus_size_t /*alignment*/, bus_size_t /*boundary*/,
182 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/,
183 bus_dma_filter_t*/*filter*/, void */*filterarg*/,
184 bus_size_t /*maxsize*/, int /*nsegments*/,
185 bus_size_t /*maxsegsz*/, int /*flags*/,
186 bus_dma_tag_t */*dma_tagp*/);
188 void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/);
190 int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
191 void** /*vaddr*/, int /*flags*/,
192 bus_dmamap_t* /*mapp*/);
194 void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
195 void* /*vaddr*/, bus_dmamap_t /*map*/);
197 void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/,
198 bus_dmamap_t /*map*/);
200 int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/,
201 bus_dmamap_t /*map*/, void * /*buf*/,
202 bus_size_t /*buflen*/, bus_dmamap_callback_t *,
203 void */*callback_arg*/, int /*flags*/);
205 int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
208 * Operations performed by ahc_dmamap_sync().
210 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
211 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
212 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
213 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
217 * ahc_dmamap_sync is only used on buffers allocated with
218 * the pci_alloc_consistent() API. Although I'm not sure how
219 * this works on architectures with a write buffer, Linux does
220 * not have an API to sync "coherent" memory. Perhaps we need
223 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
225 /********************************** Includes **********************************/
226 #ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
227 #define AIC_DEBUG_REGISTERS 1
229 #define AIC_DEBUG_REGISTERS 0
233 /***************************** Timer Facilities *******************************/
235 ahc_scb_timer_reset(struct scb *scb, u_int usec)
239 /***************************** SMP support ************************************/
240 #include <linux/spinlock.h>
242 #define AIC7XXX_DRIVER_VERSION "7.0"
244 /*************************** Device Data Structures ***************************/
246 * A per probed device structure used to deal with some error recovery
247 * scenarios that the Linux mid-layer code just doesn't know how to
248 * handle. The structure allocated for a device only becomes persistent
249 * after a successfully completed inquiry command to the target when
250 * that inquiry data indicates a lun is present.
253 AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
254 AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
255 AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
256 AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
257 } ahc_linux_dev_flags;
259 struct ahc_linux_target;
260 struct ahc_linux_device {
262 * The number of transactions currently
263 * queued to the device.
268 * The currently allowed number of
269 * transactions that can be queued to
270 * the device. Must be signed for
271 * conversion from tagged to untagged
272 * mode where the device may have more
273 * than one outstanding active transaction.
278 * A positive count indicates that this
279 * device's queue is halted.
284 * Cumulative command counter.
286 u_long commands_issued;
289 * The number of tagged transactions when
290 * running at our current opening level
291 * that have been successfully received by
292 * this device since the last QUEUE FULL.
294 u_int tag_success_count;
295 #define AHC_TAG_SUCCESS_INTERVAL 50
297 ahc_linux_dev_flags flags;
300 * The high limit for the tags variable.
305 * The computed number of tags outstanding
306 * at the time of the last QUEUE FULL event.
308 u_int tags_on_last_queuefull;
311 * How many times we have seen a queue full
312 * with the same number of tags. This is used
313 * to stop our adaptive queue depth algorithm
314 * on devices with a fixed number of tags.
316 u_int last_queuefull_same_count;
317 #define AHC_LOCK_TAGS_COUNT 50
320 * How many transactions have been queued
321 * without the device going idle. We use
322 * this statistic to determine when to issue
323 * an ordered tag to prevent transaction
324 * starvation. This statistic is only updated
325 * if the AHC_DEV_PERIODIC_OTAG flag is set
328 u_int commands_since_idle_or_otag;
329 #define AHC_OTAG_THRESH 500
332 struct ahc_linux_target {
333 struct scsi_device *sdev[AHC_NUM_LUNS];
334 struct ahc_transinfo last_tinfo;
335 struct ahc_softc *ahc;
338 /********************* Definitions Required by the Core ***********************/
340 * Number of SG segments we require. So long as the S/G segments for
341 * a particular transaction are allocated in a physically contiguous
342 * manner and are allocated below 4GB, the number of S/G segments is
348 * Per-SCB OSM storage.
350 struct scb_platform_data {
351 struct ahc_linux_device *dev;
352 dma_addr_t buf_busaddr;
354 uint32_t sense_resid; /* Auto-Sense residual */
358 * Define a structure used for each host adapter. All members are
359 * aligned on a boundary >= the size of the member to honor the
360 * alignment restrictions of the various platforms supported by
363 struct ahc_platform_data {
365 * Fields accessed from interrupt context.
367 struct scsi_target *starget[AHC_NUM_TARGETS];
369 spinlock_t spin_lock;
371 struct completion *eh_done;
372 struct Scsi_Host *host; /* pointer to scsi host */
373 #define AHC_LINUX_NOIRQ ((uint32_t)~0)
374 uint32_t irq; /* IRQ for this adapter */
375 uint32_t bios_address;
376 uint32_t mem_busaddr; /* Mem Base Addr */
379 /************************** OS Utility Wrappers *******************************/
380 #define printf printk
381 #define M_NOWAIT GFP_ATOMIC
383 #define malloc(size, type, flags) kmalloc(size, flags)
384 #define free(ptr, type) kfree(ptr)
386 static __inline void ahc_delay(long);
391 * udelay on Linux can have problems for
392 * multi-millisecond waits. Wait at most
402 /***************************** Low Level I/O **********************************/
403 static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port);
404 static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
405 static __inline void ahc_outsb(struct ahc_softc * ahc, long port,
406 uint8_t *, int count);
407 static __inline void ahc_insb(struct ahc_softc * ahc, long port,
408 uint8_t *, int count);
410 static __inline uint8_t
411 ahc_inb(struct ahc_softc * ahc, long port)
415 if (ahc->tag == BUS_SPACE_MEMIO) {
416 x = readb(ahc->bsh.maddr + port);
418 x = inb(ahc->bsh.ioport + port);
425 ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
427 if (ahc->tag == BUS_SPACE_MEMIO) {
428 writeb(val, ahc->bsh.maddr + port);
430 outb(val, ahc->bsh.ioport + port);
436 ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
441 * There is probably a more efficient way to do this on Linux
442 * but we don't use this for anything speed critical and this
445 for (i = 0; i < count; i++)
446 ahc_outb(ahc, port, *array++);
450 ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
455 * There is probably a more efficient way to do this on Linux
456 * but we don't use this for anything speed critical and this
459 for (i = 0; i < count; i++)
460 *array++ = ahc_inb(ahc, port);
463 /**************************** Initialization **********************************/
464 int ahc_linux_register_host(struct ahc_softc *,
465 struct scsi_host_template *);
467 /*************************** Pretty Printing **********************************/
475 void ahc_format_transinfo(struct info_str *info,
476 struct ahc_transinfo *tinfo);
478 /******************************** Locking *************************************/
479 /* Lock protecting internal data structures */
482 ahc_lockinit(struct ahc_softc *ahc)
484 spin_lock_init(&ahc->platform_data->spin_lock);
488 ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
490 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
494 ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
496 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
499 /******************************* PCI Definitions ******************************/
501 * PCIM_xxx: mask to locate subfield in register
502 * PCIR_xxx: config register offset
503 * PCIC_xxx: device class
504 * PCIS_xxx: device subclass
505 * PCIP_xxx: device programming interface
506 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
507 * PCID_xxx: device ID
509 #define PCIR_DEVVENDOR 0x00
510 #define PCIR_VENDOR 0x00
511 #define PCIR_DEVICE 0x02
512 #define PCIR_COMMAND 0x04
513 #define PCIM_CMD_PORTEN 0x0001
514 #define PCIM_CMD_MEMEN 0x0002
515 #define PCIM_CMD_BUSMASTEREN 0x0004
516 #define PCIM_CMD_MWRICEN 0x0010
517 #define PCIM_CMD_PERRESPEN 0x0040
518 #define PCIM_CMD_SERRESPEN 0x0100
519 #define PCIR_STATUS 0x06
520 #define PCIR_REVID 0x08
521 #define PCIR_PROGIF 0x09
522 #define PCIR_SUBCLASS 0x0a
523 #define PCIR_CLASS 0x0b
524 #define PCIR_CACHELNSZ 0x0c
525 #define PCIR_LATTIMER 0x0d
526 #define PCIR_HEADERTYPE 0x0e
527 #define PCIM_MFDEV 0x80
528 #define PCIR_BIST 0x0f
529 #define PCIR_CAP_PTR 0x34
531 /* config registers for header type 0 devices */
532 #define PCIR_MAPS 0x10
533 #define PCIR_SUBVEND_0 0x2c
534 #define PCIR_SUBDEV_0 0x2e
536 extern struct pci_driver aic7xxx_pci_driver;
546 /**************************** VL/EISA Routines ********************************/
548 int ahc_linux_eisa_init(void);
549 void ahc_linux_eisa_exit(void);
550 int aic7770_map_registers(struct ahc_softc *ahc,
552 int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
554 static inline int ahc_linux_eisa_init(void) {
557 static inline void ahc_linux_eisa_exit(void) {
561 /******************************* PCI Routines *********************************/
563 int ahc_linux_pci_init(void);
564 void ahc_linux_pci_exit(void);
565 int ahc_pci_map_registers(struct ahc_softc *ahc);
566 int ahc_pci_map_int(struct ahc_softc *ahc);
568 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
571 static __inline uint32_t
572 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
579 pci_read_config_byte(pci, reg, &retval);
585 pci_read_config_word(pci, reg, &retval);
591 pci_read_config_dword(pci, reg, &retval);
595 panic("ahc_pci_read_config: Read size too big");
601 static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
602 int reg, uint32_t value,
606 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
610 pci_write_config_byte(pci, reg, value);
613 pci_write_config_word(pci, reg, value);
616 pci_write_config_dword(pci, reg, value);
619 panic("ahc_pci_write_config: Write size too big");
624 static __inline int ahc_get_pci_function(ahc_dev_softc_t);
626 ahc_get_pci_function(ahc_dev_softc_t pci)
628 return (PCI_FUNC(pci->devfn));
631 static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
633 ahc_get_pci_slot(ahc_dev_softc_t pci)
635 return (PCI_SLOT(pci->devfn));
638 static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
640 ahc_get_pci_bus(ahc_dev_softc_t pci)
642 return (pci->bus->number);
645 static inline int ahc_linux_pci_init(void) {
648 static inline void ahc_linux_pci_exit(void) {
652 static __inline void ahc_flush_device_writes(struct ahc_softc *);
654 ahc_flush_device_writes(struct ahc_softc *ahc)
656 /* XXX Is this sufficient for all architectures??? */
657 ahc_inb(ahc, INTSTAT);
660 /**************************** Proc FS Support *********************************/
661 int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
664 /*************************** Domain Validation ********************************/
665 /*********************** Transaction Access Wrappers *************************/
666 static __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
667 static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
668 static __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
669 static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
670 static __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
671 static __inline uint32_t ahc_get_transaction_status(struct scb *);
672 static __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
673 static __inline uint32_t ahc_get_scsi_status(struct scb *);
674 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
675 static __inline u_long ahc_get_transfer_length(struct scb *);
676 static __inline int ahc_get_transfer_dir(struct scb *);
677 static __inline void ahc_set_residual(struct scb *, u_long);
678 static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
679 static __inline u_long ahc_get_residual(struct scb *);
680 static __inline u_long ahc_get_sense_residual(struct scb *);
681 static __inline int ahc_perform_autosense(struct scb *);
682 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
684 static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
685 struct ahc_devinfo *);
686 static __inline void ahc_platform_scb_free(struct ahc_softc *ahc,
688 static __inline void ahc_freeze_scb(struct scb *scb);
691 void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
693 cmd->result &= ~(CAM_STATUS_MASK << 16);
694 cmd->result |= status << 16;
698 void ahc_set_transaction_status(struct scb *scb, uint32_t status)
700 ahc_cmd_set_transaction_status(scb->io_ctx,status);
704 void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
706 cmd->result &= ~0xFFFF;
707 cmd->result |= status;
711 void ahc_set_scsi_status(struct scb *scb, uint32_t status)
713 ahc_cmd_set_scsi_status(scb->io_ctx, status);
717 uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
719 return ((cmd->result >> 16) & CAM_STATUS_MASK);
723 uint32_t ahc_get_transaction_status(struct scb *scb)
725 return (ahc_cmd_get_transaction_status(scb->io_ctx));
729 uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
731 return (cmd->result & 0xFFFF);
735 uint32_t ahc_get_scsi_status(struct scb *scb)
737 return (ahc_cmd_get_scsi_status(scb->io_ctx));
741 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
744 * Nothing to do for linux as the incoming transaction
745 * has no concept of tag/non tagged, etc.
750 u_long ahc_get_transfer_length(struct scb *scb)
752 return (scb->platform_data->xfer_len);
756 int ahc_get_transfer_dir(struct scb *scb)
758 return (scb->io_ctx->sc_data_direction);
762 void ahc_set_residual(struct scb *scb, u_long resid)
764 scb->io_ctx->resid = resid;
768 void ahc_set_sense_residual(struct scb *scb, u_long resid)
770 scb->platform_data->sense_resid = resid;
774 u_long ahc_get_residual(struct scb *scb)
776 return (scb->io_ctx->resid);
780 u_long ahc_get_sense_residual(struct scb *scb)
782 return (scb->platform_data->sense_resid);
786 int ahc_perform_autosense(struct scb *scb)
789 * We always perform autosense in Linux.
790 * On other platforms this is set on a
791 * per-transaction basis.
796 static __inline uint32_t
797 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
799 return (sizeof(struct scsi_sense_data));
803 ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
804 struct ahc_devinfo *devinfo)
806 /* Nothing to do here for linux */
810 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
814 int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
815 void ahc_platform_free(struct ahc_softc *ahc);
816 void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
819 ahc_freeze_scb(struct scb *scb)
821 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
822 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
823 scb->platform_data->dev->qfrozen++;
827 void ahc_platform_set_tags(struct ahc_softc *ahc,
828 struct ahc_devinfo *devinfo, ahc_queue_alg);
829 int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
830 char channel, int lun, u_int tag,
831 role_t role, uint32_t status);
833 ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
834 void ahc_platform_flushwork(struct ahc_softc *ahc);
835 void ahc_done(struct ahc_softc*, struct scb*);
836 void ahc_send_async(struct ahc_softc *, char channel,
837 u_int target, u_int lun, ac_code, void *);
838 void ahc_print_path(struct ahc_softc *, struct scb *);
839 void ahc_platform_dump_card_state(struct ahc_softc *ahc);
842 #define AHC_PCI_CONFIG 1
844 #define AHC_PCI_CONFIG 0
846 #define bootverbose aic7xxx_verbose
847 extern u_int aic7xxx_verbose;
848 #endif /* _AIC7XXX_LINUX_H_ */