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/version.h>
70 #include <linux/interrupt.h>
71 #include <linux/module.h>
72 #include <linux/slab.h>
73 #include <asm/byteorder.h>
76 #include <scsi/scsi.h>
77 #include <scsi/scsi_cmnd.h>
78 #include <scsi/scsi_eh.h>
79 #include <scsi/scsi_device.h>
80 #include <scsi/scsi_host.h>
81 #include <scsi/scsi_tcq.h>
82 #include <scsi/scsi_transport.h>
83 #include <scsi/scsi_transport_spi.h>
85 /* Core SCSI definitions */
86 #define AIC_LIB_PREFIX ahc
88 /* Name space conflict with BSD queue macros */
95 #include "scsi_message.h"
98 /*********************************** Debugging ********************************/
99 #ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
100 #ifdef CONFIG_AIC7XXX_DEBUG_MASK
102 #define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
105 * Compile in debugging code, but do not enable any printfs.
109 /* No debugging code. */
112 /************************* Forward Declarations *******************************/
114 typedef struct pci_dev *ahc_dev_softc_t;
115 typedef struct scsi_cmnd *ahc_io_ctx_t;
117 /******************************* Byte Order ***********************************/
118 #define ahc_htobe16(x) cpu_to_be16(x)
119 #define ahc_htobe32(x) cpu_to_be32(x)
120 #define ahc_htobe64(x) cpu_to_be64(x)
121 #define ahc_htole16(x) cpu_to_le16(x)
122 #define ahc_htole32(x) cpu_to_le32(x)
123 #define ahc_htole64(x) cpu_to_le64(x)
125 #define ahc_be16toh(x) be16_to_cpu(x)
126 #define ahc_be32toh(x) be32_to_cpu(x)
127 #define ahc_be64toh(x) be64_to_cpu(x)
128 #define ahc_le16toh(x) le16_to_cpu(x)
129 #define ahc_le32toh(x) le32_to_cpu(x)
130 #define ahc_le64toh(x) le64_to_cpu(x)
132 #ifndef LITTLE_ENDIAN
133 #define LITTLE_ENDIAN 1234
137 #define BIG_ENDIAN 4321
141 #if defined(__BIG_ENDIAN)
142 #define BYTE_ORDER BIG_ENDIAN
144 #if defined(__LITTLE_ENDIAN)
145 #define BYTE_ORDER LITTLE_ENDIAN
147 #endif /* BYTE_ORDER */
149 /************************* Configuration Data *********************************/
150 extern u_int aic7xxx_no_probe;
151 extern u_int aic7xxx_allow_memio;
152 extern int aic7xxx_detect_complete;
153 extern struct scsi_host_template aic7xxx_driver_template;
155 /***************************** Bus Space/DMA **********************************/
157 typedef uint32_t bus_size_t;
166 volatile uint8_t __iomem *maddr;
167 } bus_space_handle_t;
169 typedef struct bus_dma_segment
175 struct ahc_linux_dma_tag
177 bus_size_t alignment;
181 typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
183 typedef dma_addr_t bus_dmamap_t;
185 typedef int bus_dma_filter_t(void*, dma_addr_t);
186 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
188 #define BUS_DMA_WAITOK 0x0
189 #define BUS_DMA_NOWAIT 0x1
190 #define BUS_DMA_ALLOCNOW 0x2
191 #define BUS_DMA_LOAD_SEGS 0x4 /*
192 * Argument is an S/G list not
196 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
197 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
198 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
200 int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/,
201 bus_size_t /*alignment*/, bus_size_t /*boundary*/,
202 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/,
203 bus_dma_filter_t*/*filter*/, void */*filterarg*/,
204 bus_size_t /*maxsize*/, int /*nsegments*/,
205 bus_size_t /*maxsegsz*/, int /*flags*/,
206 bus_dma_tag_t */*dma_tagp*/);
208 void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/);
210 int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
211 void** /*vaddr*/, int /*flags*/,
212 bus_dmamap_t* /*mapp*/);
214 void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
215 void* /*vaddr*/, bus_dmamap_t /*map*/);
217 void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/,
218 bus_dmamap_t /*map*/);
220 int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/,
221 bus_dmamap_t /*map*/, void * /*buf*/,
222 bus_size_t /*buflen*/, bus_dmamap_callback_t *,
223 void */*callback_arg*/, int /*flags*/);
225 int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
228 * Operations performed by ahc_dmamap_sync().
230 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
231 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
232 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
233 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
237 * ahc_dmamap_sync is only used on buffers allocated with
238 * the pci_alloc_consistent() API. Although I'm not sure how
239 * this works on architectures with a write buffer, Linux does
240 * not have an API to sync "coherent" memory. Perhaps we need
243 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
245 /************************** Timer DataStructures ******************************/
246 typedef struct timer_list ahc_timer_t;
248 /********************************** Includes **********************************/
249 #ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
250 #define AIC_DEBUG_REGISTERS 1
252 #define AIC_DEBUG_REGISTERS 0
256 /***************************** Timer Facilities *******************************/
257 #define ahc_timer_init init_timer
258 #define ahc_timer_stop del_timer_sync
259 typedef void ahc_linux_callback_t (u_long);
260 static __inline void ahc_timer_reset(ahc_timer_t *timer, int usec,
261 ahc_callback_t *func, void *arg);
262 static __inline void ahc_scb_timer_reset(struct scb *scb, u_int usec);
265 ahc_timer_reset(ahc_timer_t *timer, int usec, ahc_callback_t *func, void *arg)
267 struct ahc_softc *ahc;
269 ahc = (struct ahc_softc *)arg;
271 timer->data = (u_long)arg;
272 timer->expires = jiffies + (usec * HZ)/1000000;
273 timer->function = (ahc_linux_callback_t*)func;
278 ahc_scb_timer_reset(struct scb *scb, u_int usec)
280 mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000);
283 /***************************** SMP support ************************************/
284 #include <linux/spinlock.h>
286 #define AIC7XXX_DRIVER_VERSION "6.2.36"
288 /**************************** Front End Queues ********************************/
290 * Data structure used to cast the Linux struct scsi_cmnd to something
291 * that allows us to use the queue macros. The linux structure has
292 * plenty of space to hold the links fields as required by the queue
293 * macros, but the queue macors require them to have the correct type.
295 struct ahc_cmd_internal {
296 /* Area owned by the Linux scsi layer. */
297 uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)];
299 STAILQ_ENTRY(ahc_cmd) ste;
300 LIST_ENTRY(ahc_cmd) le;
301 TAILQ_ENTRY(ahc_cmd) tqe;
308 struct ahc_cmd_internal icmd;
309 struct scsi_cmnd scsi_cmd;
313 #define acmd_icmd(cmd) ((cmd)->un.icmd)
314 #define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd)
315 #define acmd_links un.icmd.links
317 /*************************** Device Data Structures ***************************/
319 * A per probed device structure used to deal with some error recovery
320 * scenarios that the Linux mid-layer code just doesn't know how to
321 * handle. The structure allocated for a device only becomes persistent
322 * after a successfully completed inquiry command to the target when
323 * that inquiry data indicates a lun is present.
325 TAILQ_HEAD(ahc_busyq, ahc_cmd);
327 AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
328 AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
329 AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
330 AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
331 } ahc_linux_dev_flags;
333 struct ahc_linux_target;
334 struct ahc_linux_device {
336 * The number of transactions currently
337 * queued to the device.
342 * The currently allowed number of
343 * transactions that can be queued to
344 * the device. Must be signed for
345 * conversion from tagged to untagged
346 * mode where the device may have more
347 * than one outstanding active transaction.
352 * A positive count indicates that this
353 * device's queue is halted.
358 * Cumulative command counter.
360 u_long commands_issued;
363 * The number of tagged transactions when
364 * running at our current opening level
365 * that have been successfully received by
366 * this device since the last QUEUE FULL.
368 u_int tag_success_count;
369 #define AHC_TAG_SUCCESS_INTERVAL 50
371 ahc_linux_dev_flags flags;
374 * The high limit for the tags variable.
379 * The computed number of tags outstanding
380 * at the time of the last QUEUE FULL event.
382 u_int tags_on_last_queuefull;
385 * How many times we have seen a queue full
386 * with the same number of tags. This is used
387 * to stop our adaptive queue depth algorithm
388 * on devices with a fixed number of tags.
390 u_int last_queuefull_same_count;
391 #define AHC_LOCK_TAGS_COUNT 50
394 * How many transactions have been queued
395 * without the device going idle. We use
396 * this statistic to determine when to issue
397 * an ordered tag to prevent transaction
398 * starvation. This statistic is only updated
399 * if the AHC_DEV_PERIODIC_OTAG flag is set
402 u_int commands_since_idle_or_otag;
403 #define AHC_OTAG_THRESH 500
406 struct ahc_linux_target {
407 struct scsi_device *sdev[AHC_NUM_LUNS];
408 struct ahc_transinfo last_tinfo;
409 struct ahc_softc *ahc;
412 /********************* Definitions Required by the Core ***********************/
414 * Number of SG segments we require. So long as the S/G segments for
415 * a particular transaction are allocated in a physically contiguous
416 * manner and are allocated below 4GB, the number of S/G segments is
422 * Per-SCB OSM storage.
424 struct scb_platform_data {
425 struct ahc_linux_device *dev;
426 dma_addr_t buf_busaddr;
428 uint32_t sense_resid; /* Auto-Sense residual */
432 * Define a structure used for each host adapter. All members are
433 * aligned on a boundary >= the size of the member to honor the
434 * alignment restrictions of the various platforms supported by
437 struct ahc_platform_data {
439 * Fields accessed from interrupt context.
441 struct scsi_target *starget[AHC_NUM_TARGETS];
443 spinlock_t spin_lock;
445 struct timer_list reset_timer;
446 struct semaphore eh_sem;
447 struct Scsi_Host *host; /* pointer to scsi host */
448 #define AHC_LINUX_NOIRQ ((uint32_t)~0)
449 uint32_t irq; /* IRQ for this adapter */
450 uint32_t bios_address;
451 uint32_t mem_busaddr; /* Mem Base Addr */
453 #define AHC_UP_EH_SEMAPHORE 0x1
457 /************************** OS Utility Wrappers *******************************/
458 #define printf printk
459 #define M_NOWAIT GFP_ATOMIC
461 #define malloc(size, type, flags) kmalloc(size, flags)
462 #define free(ptr, type) kfree(ptr)
464 static __inline void ahc_delay(long);
469 * udelay on Linux can have problems for
470 * multi-millisecond waits. Wait at most
480 /***************************** Low Level I/O **********************************/
481 static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port);
482 static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
483 static __inline void ahc_outsb(struct ahc_softc * ahc, long port,
484 uint8_t *, int count);
485 static __inline void ahc_insb(struct ahc_softc * ahc, long port,
486 uint8_t *, int count);
488 static __inline uint8_t
489 ahc_inb(struct ahc_softc * ahc, long port)
493 if (ahc->tag == BUS_SPACE_MEMIO) {
494 x = readb(ahc->bsh.maddr + port);
496 x = inb(ahc->bsh.ioport + port);
503 ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
505 if (ahc->tag == BUS_SPACE_MEMIO) {
506 writeb(val, ahc->bsh.maddr + port);
508 outb(val, ahc->bsh.ioport + port);
514 ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
519 * There is probably a more efficient way to do this on Linux
520 * but we don't use this for anything speed critical and this
523 for (i = 0; i < count; i++)
524 ahc_outb(ahc, port, *array++);
528 ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
533 * There is probably a more efficient way to do this on Linux
534 * but we don't use this for anything speed critical and this
537 for (i = 0; i < count; i++)
538 *array++ = ahc_inb(ahc, port);
541 /**************************** Initialization **********************************/
542 int ahc_linux_register_host(struct ahc_softc *,
543 struct scsi_host_template *);
545 uint64_t ahc_linux_get_memsize(void);
547 /*************************** Pretty Printing **********************************/
555 void ahc_format_transinfo(struct info_str *info,
556 struct ahc_transinfo *tinfo);
558 /******************************** Locking *************************************/
559 /* Lock protecting internal data structures */
560 static __inline void ahc_lockinit(struct ahc_softc *);
561 static __inline void ahc_lock(struct ahc_softc *, unsigned long *flags);
562 static __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags);
564 /* Lock held during ahc_list manipulation and ahc softc frees */
565 extern spinlock_t ahc_list_spinlock;
566 static __inline void ahc_list_lockinit(void);
567 static __inline void ahc_list_lock(unsigned long *flags);
568 static __inline void ahc_list_unlock(unsigned long *flags);
571 ahc_lockinit(struct ahc_softc *ahc)
573 spin_lock_init(&ahc->platform_data->spin_lock);
577 ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
579 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
583 ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
585 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
589 ahc_list_lockinit(void)
591 spin_lock_init(&ahc_list_spinlock);
595 ahc_list_lock(unsigned long *flags)
597 spin_lock_irqsave(&ahc_list_spinlock, *flags);
601 ahc_list_unlock(unsigned long *flags)
603 spin_unlock_irqrestore(&ahc_list_spinlock, *flags);
606 /******************************* PCI Definitions ******************************/
608 * PCIM_xxx: mask to locate subfield in register
609 * PCIR_xxx: config register offset
610 * PCIC_xxx: device class
611 * PCIS_xxx: device subclass
612 * PCIP_xxx: device programming interface
613 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
614 * PCID_xxx: device ID
616 #define PCIR_DEVVENDOR 0x00
617 #define PCIR_VENDOR 0x00
618 #define PCIR_DEVICE 0x02
619 #define PCIR_COMMAND 0x04
620 #define PCIM_CMD_PORTEN 0x0001
621 #define PCIM_CMD_MEMEN 0x0002
622 #define PCIM_CMD_BUSMASTEREN 0x0004
623 #define PCIM_CMD_MWRICEN 0x0010
624 #define PCIM_CMD_PERRESPEN 0x0040
625 #define PCIM_CMD_SERRESPEN 0x0100
626 #define PCIR_STATUS 0x06
627 #define PCIR_REVID 0x08
628 #define PCIR_PROGIF 0x09
629 #define PCIR_SUBCLASS 0x0a
630 #define PCIR_CLASS 0x0b
631 #define PCIR_CACHELNSZ 0x0c
632 #define PCIR_LATTIMER 0x0d
633 #define PCIR_HEADERTYPE 0x0e
634 #define PCIM_MFDEV 0x80
635 #define PCIR_BIST 0x0f
636 #define PCIR_CAP_PTR 0x34
638 /* config registers for header type 0 devices */
639 #define PCIR_MAPS 0x10
640 #define PCIR_SUBVEND_0 0x2c
641 #define PCIR_SUBDEV_0 0x2e
643 extern struct pci_driver aic7xxx_pci_driver;
653 /**************************** VL/EISA Routines ********************************/
655 extern uint32_t aic7xxx_probe_eisa_vl;
656 int ahc_linux_eisa_init(void);
657 void ahc_linux_eisa_exit(void);
658 int aic7770_map_registers(struct ahc_softc *ahc,
660 int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
662 static inline int ahc_linux_eisa_init(void) {
665 static inline void ahc_linux_eisa_exit(void) {
669 /******************************* PCI Routines *********************************/
671 int ahc_linux_pci_init(void);
672 void ahc_linux_pci_exit(void);
673 int ahc_pci_map_registers(struct ahc_softc *ahc);
674 int ahc_pci_map_int(struct ahc_softc *ahc);
676 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
679 static __inline uint32_t
680 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
687 pci_read_config_byte(pci, reg, &retval);
693 pci_read_config_word(pci, reg, &retval);
699 pci_read_config_dword(pci, reg, &retval);
703 panic("ahc_pci_read_config: Read size too big");
709 static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
710 int reg, uint32_t value,
714 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
718 pci_write_config_byte(pci, reg, value);
721 pci_write_config_word(pci, reg, value);
724 pci_write_config_dword(pci, reg, value);
727 panic("ahc_pci_write_config: Write size too big");
732 static __inline int ahc_get_pci_function(ahc_dev_softc_t);
734 ahc_get_pci_function(ahc_dev_softc_t pci)
736 return (PCI_FUNC(pci->devfn));
739 static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
741 ahc_get_pci_slot(ahc_dev_softc_t pci)
743 return (PCI_SLOT(pci->devfn));
746 static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
748 ahc_get_pci_bus(ahc_dev_softc_t pci)
750 return (pci->bus->number);
753 static inline int ahc_linux_pci_init(void) {
756 static inline void ahc_linux_pci_exit(void) {
760 static __inline void ahc_flush_device_writes(struct ahc_softc *);
762 ahc_flush_device_writes(struct ahc_softc *ahc)
764 /* XXX Is this sufficient for all architectures??? */
765 ahc_inb(ahc, INTSTAT);
768 /**************************** Proc FS Support *********************************/
769 int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
772 /*************************** Domain Validation ********************************/
773 /*********************** Transaction Access Wrappers *************************/
774 static __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
775 static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
776 static __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
777 static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
778 static __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
779 static __inline uint32_t ahc_get_transaction_status(struct scb *);
780 static __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
781 static __inline uint32_t ahc_get_scsi_status(struct scb *);
782 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
783 static __inline u_long ahc_get_transfer_length(struct scb *);
784 static __inline int ahc_get_transfer_dir(struct scb *);
785 static __inline void ahc_set_residual(struct scb *, u_long);
786 static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
787 static __inline u_long ahc_get_residual(struct scb *);
788 static __inline u_long ahc_get_sense_residual(struct scb *);
789 static __inline int ahc_perform_autosense(struct scb *);
790 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
792 static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
793 struct ahc_devinfo *);
794 static __inline void ahc_platform_scb_free(struct ahc_softc *ahc,
796 static __inline void ahc_freeze_scb(struct scb *scb);
799 void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
801 cmd->result &= ~(CAM_STATUS_MASK << 16);
802 cmd->result |= status << 16;
806 void ahc_set_transaction_status(struct scb *scb, uint32_t status)
808 ahc_cmd_set_transaction_status(scb->io_ctx,status);
812 void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
814 cmd->result &= ~0xFFFF;
815 cmd->result |= status;
819 void ahc_set_scsi_status(struct scb *scb, uint32_t status)
821 ahc_cmd_set_scsi_status(scb->io_ctx, status);
825 uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
827 return ((cmd->result >> 16) & CAM_STATUS_MASK);
831 uint32_t ahc_get_transaction_status(struct scb *scb)
833 return (ahc_cmd_get_transaction_status(scb->io_ctx));
837 uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
839 return (cmd->result & 0xFFFF);
843 uint32_t ahc_get_scsi_status(struct scb *scb)
845 return (ahc_cmd_get_scsi_status(scb->io_ctx));
849 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
852 * Nothing to do for linux as the incoming transaction
853 * has no concept of tag/non tagged, etc.
858 u_long ahc_get_transfer_length(struct scb *scb)
860 return (scb->platform_data->xfer_len);
864 int ahc_get_transfer_dir(struct scb *scb)
866 return (scb->io_ctx->sc_data_direction);
870 void ahc_set_residual(struct scb *scb, u_long resid)
872 scb->io_ctx->resid = resid;
876 void ahc_set_sense_residual(struct scb *scb, u_long resid)
878 scb->platform_data->sense_resid = resid;
882 u_long ahc_get_residual(struct scb *scb)
884 return (scb->io_ctx->resid);
888 u_long ahc_get_sense_residual(struct scb *scb)
890 return (scb->platform_data->sense_resid);
894 int ahc_perform_autosense(struct scb *scb)
897 * We always perform autosense in Linux.
898 * On other platforms this is set on a
899 * per-transaction basis.
904 static __inline uint32_t
905 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
907 return (sizeof(struct scsi_sense_data));
911 ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
912 struct ahc_devinfo *devinfo)
914 /* Nothing to do here for linux */
918 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
920 ahc->flags &= ~AHC_RESOURCE_SHORTAGE;
923 int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
924 void ahc_platform_free(struct ahc_softc *ahc);
925 void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
928 ahc_freeze_scb(struct scb *scb)
930 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
931 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
932 scb->platform_data->dev->qfrozen++;
936 void ahc_platform_set_tags(struct ahc_softc *ahc,
937 struct ahc_devinfo *devinfo, ahc_queue_alg);
938 int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
939 char channel, int lun, u_int tag,
940 role_t role, uint32_t status);
942 ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
943 void ahc_platform_flushwork(struct ahc_softc *ahc);
944 int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *);
945 void ahc_done(struct ahc_softc*, struct scb*);
946 void ahc_send_async(struct ahc_softc *, char channel,
947 u_int target, u_int lun, ac_code, void *);
948 void ahc_print_path(struct ahc_softc *, struct scb *);
949 void ahc_platform_dump_card_state(struct ahc_softc *ahc);
952 #define AHC_PCI_CONFIG 1
954 #define AHC_PCI_CONFIG 0
956 #define bootverbose aic7xxx_verbose
957 extern u_int aic7xxx_verbose;
958 #endif /* _AIC7XXX_LINUX_H_ */