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/config.h>
63 #include <linux/types.h>
64 #include <linux/blkdev.h>
65 #include <linux/delay.h>
66 #include <linux/ioport.h>
67 #include <linux/pci.h>
68 #include <linux/smp_lock.h>
69 #include <linux/interrupt.h>
70 #include <linux/module.h>
71 #include <linux/slab.h>
72 #include <asm/byteorder.h>
75 #include <scsi/scsi.h>
76 #include <scsi/scsi_cmnd.h>
77 #include <scsi/scsi_eh.h>
78 #include <scsi/scsi_device.h>
79 #include <scsi/scsi_host.h>
80 #include <scsi/scsi_tcq.h>
81 #include <scsi/scsi_transport.h>
82 #include <scsi/scsi_transport_spi.h>
84 /* Core SCSI definitions */
85 #define AIC_LIB_PREFIX ahc
87 /* Name space conflict with BSD queue macros */
94 #include "scsi_message.h"
97 /*********************************** Debugging ********************************/
98 #ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
99 #ifdef CONFIG_AIC7XXX_DEBUG_MASK
101 #define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
104 * Compile in debugging code, but do not enable any printfs.
108 /* No debugging code. */
111 /************************* Forward Declarations *******************************/
113 typedef struct pci_dev *ahc_dev_softc_t;
114 typedef struct scsi_cmnd *ahc_io_ctx_t;
116 /******************************* Byte Order ***********************************/
117 #define ahc_htobe16(x) cpu_to_be16(x)
118 #define ahc_htobe32(x) cpu_to_be32(x)
119 #define ahc_htobe64(x) cpu_to_be64(x)
120 #define ahc_htole16(x) cpu_to_le16(x)
121 #define ahc_htole32(x) cpu_to_le32(x)
122 #define ahc_htole64(x) cpu_to_le64(x)
124 #define ahc_be16toh(x) be16_to_cpu(x)
125 #define ahc_be32toh(x) be32_to_cpu(x)
126 #define ahc_be64toh(x) be64_to_cpu(x)
127 #define ahc_le16toh(x) le16_to_cpu(x)
128 #define ahc_le32toh(x) le32_to_cpu(x)
129 #define ahc_le64toh(x) le64_to_cpu(x)
131 /************************* Configuration Data *********************************/
132 extern u_int aic7xxx_no_probe;
133 extern u_int aic7xxx_allow_memio;
134 extern struct scsi_host_template aic7xxx_driver_template;
136 /***************************** Bus Space/DMA **********************************/
138 typedef uint32_t bus_size_t;
147 volatile uint8_t __iomem *maddr;
148 } bus_space_handle_t;
150 typedef struct bus_dma_segment
156 struct ahc_linux_dma_tag
158 bus_size_t alignment;
162 typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
164 typedef dma_addr_t bus_dmamap_t;
166 typedef int bus_dma_filter_t(void*, dma_addr_t);
167 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
169 #define BUS_DMA_WAITOK 0x0
170 #define BUS_DMA_NOWAIT 0x1
171 #define BUS_DMA_ALLOCNOW 0x2
172 #define BUS_DMA_LOAD_SEGS 0x4 /*
173 * Argument is an S/G list not
177 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
178 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
179 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
181 int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/,
182 bus_size_t /*alignment*/, bus_size_t /*boundary*/,
183 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/,
184 bus_dma_filter_t*/*filter*/, void */*filterarg*/,
185 bus_size_t /*maxsize*/, int /*nsegments*/,
186 bus_size_t /*maxsegsz*/, int /*flags*/,
187 bus_dma_tag_t */*dma_tagp*/);
189 void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/);
191 int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
192 void** /*vaddr*/, int /*flags*/,
193 bus_dmamap_t* /*mapp*/);
195 void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
196 void* /*vaddr*/, bus_dmamap_t /*map*/);
198 void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/,
199 bus_dmamap_t /*map*/);
201 int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/,
202 bus_dmamap_t /*map*/, void * /*buf*/,
203 bus_size_t /*buflen*/, bus_dmamap_callback_t *,
204 void */*callback_arg*/, int /*flags*/);
206 int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
209 * Operations performed by ahc_dmamap_sync().
211 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
212 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
213 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
214 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
218 * ahc_dmamap_sync is only used on buffers allocated with
219 * the pci_alloc_consistent() API. Although I'm not sure how
220 * this works on architectures with a write buffer, Linux does
221 * not have an API to sync "coherent" memory. Perhaps we need
224 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
226 /************************** Timer DataStructures ******************************/
227 typedef struct timer_list ahc_timer_t;
229 /********************************** Includes **********************************/
230 #ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
231 #define AIC_DEBUG_REGISTERS 1
233 #define AIC_DEBUG_REGISTERS 0
237 /***************************** Timer Facilities *******************************/
238 #define ahc_timer_init init_timer
239 #define ahc_timer_stop del_timer_sync
240 typedef void ahc_linux_callback_t (u_long);
241 static __inline void ahc_timer_reset(ahc_timer_t *timer, int usec,
242 ahc_callback_t *func, void *arg);
243 static __inline void ahc_scb_timer_reset(struct scb *scb, u_int usec);
246 ahc_timer_reset(ahc_timer_t *timer, int usec, ahc_callback_t *func, void *arg)
248 struct ahc_softc *ahc;
250 ahc = (struct ahc_softc *)arg;
252 timer->data = (u_long)arg;
253 timer->expires = jiffies + (usec * HZ)/1000000;
254 timer->function = (ahc_linux_callback_t*)func;
259 ahc_scb_timer_reset(struct scb *scb, u_int usec)
261 mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000);
264 /***************************** SMP support ************************************/
265 #include <linux/spinlock.h>
267 #define AIC7XXX_DRIVER_VERSION "7.0"
269 /*************************** Device Data Structures ***************************/
271 * A per probed device structure used to deal with some error recovery
272 * scenarios that the Linux mid-layer code just doesn't know how to
273 * handle. The structure allocated for a device only becomes persistent
274 * after a successfully completed inquiry command to the target when
275 * that inquiry data indicates a lun is present.
278 AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
279 AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
280 AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
281 AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
282 } ahc_linux_dev_flags;
284 struct ahc_linux_target;
285 struct ahc_linux_device {
287 * The number of transactions currently
288 * queued to the device.
293 * The currently allowed number of
294 * transactions that can be queued to
295 * the device. Must be signed for
296 * conversion from tagged to untagged
297 * mode where the device may have more
298 * than one outstanding active transaction.
303 * A positive count indicates that this
304 * device's queue is halted.
309 * Cumulative command counter.
311 u_long commands_issued;
314 * The number of tagged transactions when
315 * running at our current opening level
316 * that have been successfully received by
317 * this device since the last QUEUE FULL.
319 u_int tag_success_count;
320 #define AHC_TAG_SUCCESS_INTERVAL 50
322 ahc_linux_dev_flags flags;
325 * The high limit for the tags variable.
330 * The computed number of tags outstanding
331 * at the time of the last QUEUE FULL event.
333 u_int tags_on_last_queuefull;
336 * How many times we have seen a queue full
337 * with the same number of tags. This is used
338 * to stop our adaptive queue depth algorithm
339 * on devices with a fixed number of tags.
341 u_int last_queuefull_same_count;
342 #define AHC_LOCK_TAGS_COUNT 50
345 * How many transactions have been queued
346 * without the device going idle. We use
347 * this statistic to determine when to issue
348 * an ordered tag to prevent transaction
349 * starvation. This statistic is only updated
350 * if the AHC_DEV_PERIODIC_OTAG flag is set
353 u_int commands_since_idle_or_otag;
354 #define AHC_OTAG_THRESH 500
357 struct ahc_linux_target {
358 struct scsi_device *sdev[AHC_NUM_LUNS];
359 struct ahc_transinfo last_tinfo;
360 struct ahc_softc *ahc;
363 /********************* Definitions Required by the Core ***********************/
365 * Number of SG segments we require. So long as the S/G segments for
366 * a particular transaction are allocated in a physically contiguous
367 * manner and are allocated below 4GB, the number of S/G segments is
373 * Per-SCB OSM storage.
375 struct scb_platform_data {
376 struct ahc_linux_device *dev;
377 dma_addr_t buf_busaddr;
379 uint32_t sense_resid; /* Auto-Sense residual */
383 * Define a structure used for each host adapter. All members are
384 * aligned on a boundary >= the size of the member to honor the
385 * alignment restrictions of the various platforms supported by
388 struct ahc_platform_data {
390 * Fields accessed from interrupt context.
392 struct scsi_target *starget[AHC_NUM_TARGETS];
394 spinlock_t spin_lock;
396 struct timer_list reset_timer;
397 struct semaphore eh_sem;
398 struct Scsi_Host *host; /* pointer to scsi host */
399 #define AHC_LINUX_NOIRQ ((uint32_t)~0)
400 uint32_t irq; /* IRQ for this adapter */
401 uint32_t bios_address;
402 uint32_t mem_busaddr; /* Mem Base Addr */
404 #define AHC_UP_EH_SEMAPHORE 0x1
408 /************************** OS Utility Wrappers *******************************/
409 #define printf printk
410 #define M_NOWAIT GFP_ATOMIC
412 #define malloc(size, type, flags) kmalloc(size, flags)
413 #define free(ptr, type) kfree(ptr)
415 static __inline void ahc_delay(long);
420 * udelay on Linux can have problems for
421 * multi-millisecond waits. Wait at most
431 /***************************** Low Level I/O **********************************/
432 static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port);
433 static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
434 static __inline void ahc_outsb(struct ahc_softc * ahc, long port,
435 uint8_t *, int count);
436 static __inline void ahc_insb(struct ahc_softc * ahc, long port,
437 uint8_t *, int count);
439 static __inline uint8_t
440 ahc_inb(struct ahc_softc * ahc, long port)
444 if (ahc->tag == BUS_SPACE_MEMIO) {
445 x = readb(ahc->bsh.maddr + port);
447 x = inb(ahc->bsh.ioport + port);
454 ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
456 if (ahc->tag == BUS_SPACE_MEMIO) {
457 writeb(val, ahc->bsh.maddr + port);
459 outb(val, ahc->bsh.ioport + port);
465 ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
470 * There is probably a more efficient way to do this on Linux
471 * but we don't use this for anything speed critical and this
474 for (i = 0; i < count; i++)
475 ahc_outb(ahc, port, *array++);
479 ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
484 * There is probably a more efficient way to do this on Linux
485 * but we don't use this for anything speed critical and this
488 for (i = 0; i < count; i++)
489 *array++ = ahc_inb(ahc, port);
492 /**************************** Initialization **********************************/
493 int ahc_linux_register_host(struct ahc_softc *,
494 struct scsi_host_template *);
496 /*************************** Pretty Printing **********************************/
504 void ahc_format_transinfo(struct info_str *info,
505 struct ahc_transinfo *tinfo);
507 /******************************** Locking *************************************/
508 /* Lock protecting internal data structures */
511 ahc_lockinit(struct ahc_softc *ahc)
513 spin_lock_init(&ahc->platform_data->spin_lock);
517 ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
519 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
523 ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
525 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
528 /******************************* PCI Definitions ******************************/
530 * PCIM_xxx: mask to locate subfield in register
531 * PCIR_xxx: config register offset
532 * PCIC_xxx: device class
533 * PCIS_xxx: device subclass
534 * PCIP_xxx: device programming interface
535 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
536 * PCID_xxx: device ID
538 #define PCIR_DEVVENDOR 0x00
539 #define PCIR_VENDOR 0x00
540 #define PCIR_DEVICE 0x02
541 #define PCIR_COMMAND 0x04
542 #define PCIM_CMD_PORTEN 0x0001
543 #define PCIM_CMD_MEMEN 0x0002
544 #define PCIM_CMD_BUSMASTEREN 0x0004
545 #define PCIM_CMD_MWRICEN 0x0010
546 #define PCIM_CMD_PERRESPEN 0x0040
547 #define PCIM_CMD_SERRESPEN 0x0100
548 #define PCIR_STATUS 0x06
549 #define PCIR_REVID 0x08
550 #define PCIR_PROGIF 0x09
551 #define PCIR_SUBCLASS 0x0a
552 #define PCIR_CLASS 0x0b
553 #define PCIR_CACHELNSZ 0x0c
554 #define PCIR_LATTIMER 0x0d
555 #define PCIR_HEADERTYPE 0x0e
556 #define PCIM_MFDEV 0x80
557 #define PCIR_BIST 0x0f
558 #define PCIR_CAP_PTR 0x34
560 /* config registers for header type 0 devices */
561 #define PCIR_MAPS 0x10
562 #define PCIR_SUBVEND_0 0x2c
563 #define PCIR_SUBDEV_0 0x2e
565 extern struct pci_driver aic7xxx_pci_driver;
575 /**************************** VL/EISA Routines ********************************/
577 int ahc_linux_eisa_init(void);
578 void ahc_linux_eisa_exit(void);
579 int aic7770_map_registers(struct ahc_softc *ahc,
581 int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
583 static inline int ahc_linux_eisa_init(void) {
586 static inline void ahc_linux_eisa_exit(void) {
590 /******************************* PCI Routines *********************************/
592 int ahc_linux_pci_init(void);
593 void ahc_linux_pci_exit(void);
594 int ahc_pci_map_registers(struct ahc_softc *ahc);
595 int ahc_pci_map_int(struct ahc_softc *ahc);
597 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
600 static __inline uint32_t
601 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
608 pci_read_config_byte(pci, reg, &retval);
614 pci_read_config_word(pci, reg, &retval);
620 pci_read_config_dword(pci, reg, &retval);
624 panic("ahc_pci_read_config: Read size too big");
630 static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
631 int reg, uint32_t value,
635 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
639 pci_write_config_byte(pci, reg, value);
642 pci_write_config_word(pci, reg, value);
645 pci_write_config_dword(pci, reg, value);
648 panic("ahc_pci_write_config: Write size too big");
653 static __inline int ahc_get_pci_function(ahc_dev_softc_t);
655 ahc_get_pci_function(ahc_dev_softc_t pci)
657 return (PCI_FUNC(pci->devfn));
660 static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
662 ahc_get_pci_slot(ahc_dev_softc_t pci)
664 return (PCI_SLOT(pci->devfn));
667 static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
669 ahc_get_pci_bus(ahc_dev_softc_t pci)
671 return (pci->bus->number);
674 static inline int ahc_linux_pci_init(void) {
677 static inline void ahc_linux_pci_exit(void) {
681 static __inline void ahc_flush_device_writes(struct ahc_softc *);
683 ahc_flush_device_writes(struct ahc_softc *ahc)
685 /* XXX Is this sufficient for all architectures??? */
686 ahc_inb(ahc, INTSTAT);
689 /**************************** Proc FS Support *********************************/
690 int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
693 /*************************** Domain Validation ********************************/
694 /*********************** Transaction Access Wrappers *************************/
695 static __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
696 static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
697 static __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
698 static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
699 static __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
700 static __inline uint32_t ahc_get_transaction_status(struct scb *);
701 static __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
702 static __inline uint32_t ahc_get_scsi_status(struct scb *);
703 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
704 static __inline u_long ahc_get_transfer_length(struct scb *);
705 static __inline int ahc_get_transfer_dir(struct scb *);
706 static __inline void ahc_set_residual(struct scb *, u_long);
707 static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
708 static __inline u_long ahc_get_residual(struct scb *);
709 static __inline u_long ahc_get_sense_residual(struct scb *);
710 static __inline int ahc_perform_autosense(struct scb *);
711 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
713 static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
714 struct ahc_devinfo *);
715 static __inline void ahc_platform_scb_free(struct ahc_softc *ahc,
717 static __inline void ahc_freeze_scb(struct scb *scb);
720 void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
722 cmd->result &= ~(CAM_STATUS_MASK << 16);
723 cmd->result |= status << 16;
727 void ahc_set_transaction_status(struct scb *scb, uint32_t status)
729 ahc_cmd_set_transaction_status(scb->io_ctx,status);
733 void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
735 cmd->result &= ~0xFFFF;
736 cmd->result |= status;
740 void ahc_set_scsi_status(struct scb *scb, uint32_t status)
742 ahc_cmd_set_scsi_status(scb->io_ctx, status);
746 uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
748 return ((cmd->result >> 16) & CAM_STATUS_MASK);
752 uint32_t ahc_get_transaction_status(struct scb *scb)
754 return (ahc_cmd_get_transaction_status(scb->io_ctx));
758 uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
760 return (cmd->result & 0xFFFF);
764 uint32_t ahc_get_scsi_status(struct scb *scb)
766 return (ahc_cmd_get_scsi_status(scb->io_ctx));
770 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
773 * Nothing to do for linux as the incoming transaction
774 * has no concept of tag/non tagged, etc.
779 u_long ahc_get_transfer_length(struct scb *scb)
781 return (scb->platform_data->xfer_len);
785 int ahc_get_transfer_dir(struct scb *scb)
787 return (scb->io_ctx->sc_data_direction);
791 void ahc_set_residual(struct scb *scb, u_long resid)
793 scb->io_ctx->resid = resid;
797 void ahc_set_sense_residual(struct scb *scb, u_long resid)
799 scb->platform_data->sense_resid = resid;
803 u_long ahc_get_residual(struct scb *scb)
805 return (scb->io_ctx->resid);
809 u_long ahc_get_sense_residual(struct scb *scb)
811 return (scb->platform_data->sense_resid);
815 int ahc_perform_autosense(struct scb *scb)
818 * We always perform autosense in Linux.
819 * On other platforms this is set on a
820 * per-transaction basis.
825 static __inline uint32_t
826 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
828 return (sizeof(struct scsi_sense_data));
832 ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
833 struct ahc_devinfo *devinfo)
835 /* Nothing to do here for linux */
839 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
843 int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
844 void ahc_platform_free(struct ahc_softc *ahc);
845 void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
848 ahc_freeze_scb(struct scb *scb)
850 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
851 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
852 scb->platform_data->dev->qfrozen++;
856 void ahc_platform_set_tags(struct ahc_softc *ahc,
857 struct ahc_devinfo *devinfo, ahc_queue_alg);
858 int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
859 char channel, int lun, u_int tag,
860 role_t role, uint32_t status);
862 ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
863 void ahc_platform_flushwork(struct ahc_softc *ahc);
864 void ahc_done(struct ahc_softc*, struct scb*);
865 void ahc_send_async(struct ahc_softc *, char channel,
866 u_int target, u_int lun, ac_code, void *);
867 void ahc_print_path(struct ahc_softc *, struct scb *);
868 void ahc_platform_dump_card_state(struct ahc_softc *ahc);
871 #define AHC_PCI_CONFIG 1
873 #define AHC_PCI_CONFIG 0
875 #define bootverbose aic7xxx_verbose
876 extern u_int aic7xxx_verbose;
877 #endif /* _AIC7XXX_LINUX_H_ */