2 * Adaptec AIC79xx device driver for Linux.
4 * Copyright (c) 2000-2001 Adaptec Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * substantially similar to the "NO WARRANTY" disclaimer below
15 * ("Disclaimer") and any redistribution must be conditioned upon
16 * including a substantially similar Disclaimer requirement for further
17 * binary redistribution.
18 * 3. Neither the names of the above-listed copyright holders nor the names
19 * of any contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * Alternatively, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2 as published by the Free
24 * Software Foundation.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGES.
39 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $
42 #ifndef _AIC79XX_LINUX_H_
43 #define _AIC79XX_LINUX_H_
45 #include <linux/config.h>
46 #include <linux/types.h>
47 #include <linux/blkdev.h>
48 #include <linux/delay.h>
49 #include <linux/ioport.h>
50 #include <linux/pci.h>
51 #include <linux/smp_lock.h>
52 #include <linux/interrupt.h>
53 #include <linux/module.h>
54 #include <linux/slab.h>
55 #include <asm/byteorder.h>
58 #include <scsi/scsi.h>
59 #include <scsi/scsi_cmnd.h>
60 #include <scsi/scsi_eh.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_transport.h>
65 #include <scsi/scsi_transport_spi.h>
67 /* Core SCSI definitions */
68 #define AIC_LIB_PREFIX ahd
70 /* Name space conflict with BSD queue macros */
77 #include "scsi_message.h"
81 /*********************************** Debugging ********************************/
82 #ifdef CONFIG_AIC79XX_DEBUG_ENABLE
83 #ifdef CONFIG_AIC79XX_DEBUG_MASK
85 #define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK
88 * Compile in debugging code, but do not enable any printfs.
91 #define AHD_DEBUG_OPTS 0
93 /* No debugging code. */
96 /********************************** Misc Macros *******************************/
97 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
98 #define powerof2(x) ((((x)-1)&(x))==0)
100 /************************* Forward Declarations *******************************/
102 typedef struct pci_dev
*ahd_dev_softc_t
;
103 typedef struct scsi_cmnd
*ahd_io_ctx_t
;
105 /******************************* Byte Order ***********************************/
106 #define ahd_htobe16(x) cpu_to_be16(x)
107 #define ahd_htobe32(x) cpu_to_be32(x)
108 #define ahd_htobe64(x) cpu_to_be64(x)
109 #define ahd_htole16(x) cpu_to_le16(x)
110 #define ahd_htole32(x) cpu_to_le32(x)
111 #define ahd_htole64(x) cpu_to_le64(x)
113 #define ahd_be16toh(x) be16_to_cpu(x)
114 #define ahd_be32toh(x) be32_to_cpu(x)
115 #define ahd_be64toh(x) be64_to_cpu(x)
116 #define ahd_le16toh(x) le16_to_cpu(x)
117 #define ahd_le32toh(x) le32_to_cpu(x)
118 #define ahd_le64toh(x) le64_to_cpu(x)
120 /************************* Configuration Data *********************************/
121 extern uint32_t aic79xx_allow_memio
;
122 extern struct scsi_host_template aic79xx_driver_template
;
124 /***************************** Bus Space/DMA **********************************/
126 typedef uint32_t bus_size_t
;
135 volatile uint8_t __iomem
*maddr
;
136 } bus_space_handle_t
;
138 typedef struct bus_dma_segment
144 struct ahd_linux_dma_tag
146 bus_size_t alignment
;
150 typedef struct ahd_linux_dma_tag
* bus_dma_tag_t
;
152 typedef dma_addr_t bus_dmamap_t
;
154 typedef int bus_dma_filter_t(void*, dma_addr_t
);
155 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t
*, int, int);
157 #define BUS_DMA_WAITOK 0x0
158 #define BUS_DMA_NOWAIT 0x1
159 #define BUS_DMA_ALLOCNOW 0x2
160 #define BUS_DMA_LOAD_SEGS 0x4 /*
161 * Argument is an S/G list not
165 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
166 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
167 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
169 int ahd_dma_tag_create(struct ahd_softc
*, bus_dma_tag_t
/*parent*/,
170 bus_size_t
/*alignment*/, bus_size_t
/*boundary*/,
171 dma_addr_t
/*lowaddr*/, dma_addr_t
/*highaddr*/,
172 bus_dma_filter_t*/
*filter*/
, void */
*filterarg*/
,
173 bus_size_t
/*maxsize*/, int /*nsegments*/,
174 bus_size_t
/*maxsegsz*/, int /*flags*/,
175 bus_dma_tag_t */
*dma_tagp*/
);
177 void ahd_dma_tag_destroy(struct ahd_softc
*, bus_dma_tag_t
/*tag*/);
179 int ahd_dmamem_alloc(struct ahd_softc
*, bus_dma_tag_t
/*dmat*/,
180 void** /*vaddr*/, int /*flags*/,
181 bus_dmamap_t
* /*mapp*/);
183 void ahd_dmamem_free(struct ahd_softc
*, bus_dma_tag_t
/*dmat*/,
184 void* /*vaddr*/, bus_dmamap_t
/*map*/);
186 void ahd_dmamap_destroy(struct ahd_softc
*, bus_dma_tag_t
/*tag*/,
187 bus_dmamap_t
/*map*/);
189 int ahd_dmamap_load(struct ahd_softc
*ahd
, bus_dma_tag_t
/*dmat*/,
190 bus_dmamap_t
/*map*/, void * /*buf*/,
191 bus_size_t
/*buflen*/, bus_dmamap_callback_t
*,
192 void */
*callback_arg*/
, int /*flags*/);
194 int ahd_dmamap_unload(struct ahd_softc
*, bus_dma_tag_t
, bus_dmamap_t
);
197 * Operations performed by ahd_dmamap_sync().
199 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
200 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
201 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
202 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
206 * ahd_dmamap_sync is only used on buffers allocated with
207 * the pci_alloc_consistent() API. Although I'm not sure how
208 * this works on architectures with a write buffer, Linux does
209 * not have an API to sync "coherent" memory. Perhaps we need
212 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
214 /************************** Timer DataStructures ******************************/
215 typedef struct timer_list ahd_timer_t
;
217 /********************************** Includes **********************************/
218 #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
219 #define AIC_DEBUG_REGISTERS 1
221 #define AIC_DEBUG_REGISTERS 0
225 /***************************** Timer Facilities *******************************/
226 #define ahd_timer_init init_timer
227 #define ahd_timer_stop del_timer_sync
228 typedef void ahd_linux_callback_t (u_long
);
229 static __inline
void ahd_timer_reset(ahd_timer_t
*timer
, int usec
,
230 ahd_callback_t
*func
, void *arg
);
233 ahd_timer_reset(ahd_timer_t
*timer
, int usec
, ahd_callback_t
*func
, void *arg
)
235 struct ahd_softc
*ahd
;
237 ahd
= (struct ahd_softc
*)arg
;
239 timer
->data
= (u_long
)arg
;
240 timer
->expires
= jiffies
+ (usec
* HZ
)/1000000;
241 timer
->function
= (ahd_linux_callback_t
*)func
;
245 /***************************** SMP support ************************************/
246 #include <linux/spinlock.h>
248 #define AIC79XX_DRIVER_VERSION "3.0"
250 /*************************** Device Data Structures ***************************/
252 * A per probed device structure used to deal with some error recovery
253 * scenarios that the Linux mid-layer code just doesn't know how to
254 * handle. The structure allocated for a device only becomes persistent
255 * after a successfully completed inquiry command to the target when
256 * that inquiry data indicates a lun is present.
260 AHD_DEV_FREEZE_TIL_EMPTY
= 0x02, /* Freeze queue until active == 0 */
261 AHD_DEV_Q_BASIC
= 0x10, /* Allow basic device queuing */
262 AHD_DEV_Q_TAGGED
= 0x20, /* Allow full SCSI2 command queueing */
263 AHD_DEV_PERIODIC_OTAG
= 0x40, /* Send OTAG to prevent starvation */
264 } ahd_linux_dev_flags
;
266 struct ahd_linux_target
;
267 struct ahd_linux_device
{
268 TAILQ_ENTRY(ahd_linux_device
) links
;
271 * The number of transactions currently
272 * queued to the device.
277 * The currently allowed number of
278 * transactions that can be queued to
279 * the device. Must be signed for
280 * conversion from tagged to untagged
281 * mode where the device may have more
282 * than one outstanding active transaction.
287 * A positive count indicates that this
288 * device's queue is halted.
293 * Cumulative command counter.
295 u_long commands_issued
;
298 * The number of tagged transactions when
299 * running at our current opening level
300 * that have been successfully received by
301 * this device since the last QUEUE FULL.
303 u_int tag_success_count
;
304 #define AHD_TAG_SUCCESS_INTERVAL 50
306 ahd_linux_dev_flags flags
;
311 struct timer_list timer
;
314 * The high limit for the tags variable.
319 * The computed number of tags outstanding
320 * at the time of the last QUEUE FULL event.
322 u_int tags_on_last_queuefull
;
325 * How many times we have seen a queue full
326 * with the same number of tags. This is used
327 * to stop our adaptive queue depth algorithm
328 * on devices with a fixed number of tags.
330 u_int last_queuefull_same_count
;
331 #define AHD_LOCK_TAGS_COUNT 50
334 * How many transactions have been queued
335 * without the device going idle. We use
336 * this statistic to determine when to issue
337 * an ordered tag to prevent transaction
338 * starvation. This statistic is only updated
339 * if the AHD_DEV_PERIODIC_OTAG flag is set
342 u_int commands_since_idle_or_otag
;
343 #define AHD_OTAG_THRESH 500
346 struct ahd_linux_target
{
347 struct scsi_device
*sdev
[AHD_NUM_LUNS
];
348 struct ahd_transinfo last_tinfo
;
349 struct ahd_softc
*ahd
;
352 /********************* Definitions Required by the Core ***********************/
354 * Number of SG segments we require. So long as the S/G segments for
355 * a particular transaction are allocated in a physically contiguous
356 * manner and are allocated below 4GB, the number of S/G segments is
362 * Per-SCB OSM storage.
364 struct scb_platform_data
{
365 struct ahd_linux_device
*dev
;
366 dma_addr_t buf_busaddr
;
368 uint32_t sense_resid
; /* Auto-Sense residual */
372 * Define a structure used for each host adapter. All members are
373 * aligned on a boundary >= the size of the member to honor the
374 * alignment restrictions of the various platforms supported by
377 struct ahd_platform_data
{
379 * Fields accessed from interrupt context.
381 struct scsi_target
*starget
[AHD_NUM_TARGETS
];
383 spinlock_t spin_lock
;
384 struct completion
*eh_done
;
385 struct Scsi_Host
*host
; /* pointer to scsi host */
386 #define AHD_LINUX_NOIRQ ((uint32_t)~0)
387 uint32_t irq
; /* IRQ for this adapter */
388 uint32_t bios_address
;
389 uint32_t mem_busaddr
; /* Mem Base Addr */
392 /************************** OS Utility Wrappers *******************************/
393 #define printf printk
394 #define M_NOWAIT GFP_ATOMIC
396 #define malloc(size, type, flags) kmalloc(size, flags)
397 #define free(ptr, type) kfree(ptr)
399 static __inline
void ahd_delay(long);
404 * udelay on Linux can have problems for
405 * multi-millisecond waits. Wait at most
415 /***************************** Low Level I/O **********************************/
416 static __inline
uint8_t ahd_inb(struct ahd_softc
* ahd
, long port
);
417 static __inline
uint16_t ahd_inw_atomic(struct ahd_softc
* ahd
, long port
);
418 static __inline
void ahd_outb(struct ahd_softc
* ahd
, long port
, uint8_t val
);
419 static __inline
void ahd_outw_atomic(struct ahd_softc
* ahd
,
420 long port
, uint16_t val
);
421 static __inline
void ahd_outsb(struct ahd_softc
* ahd
, long port
,
422 uint8_t *, int count
);
423 static __inline
void ahd_insb(struct ahd_softc
* ahd
, long port
,
424 uint8_t *, int count
);
426 static __inline
uint8_t
427 ahd_inb(struct ahd_softc
* ahd
, long port
)
431 if (ahd
->tags
[0] == BUS_SPACE_MEMIO
) {
432 x
= readb(ahd
->bshs
[0].maddr
+ port
);
434 x
= inb(ahd
->bshs
[(port
) >> 8].ioport
+ ((port
) & 0xFF));
440 static __inline
uint16_t
441 ahd_inw_atomic(struct ahd_softc
* ahd
, long port
)
445 if (ahd
->tags
[0] == BUS_SPACE_MEMIO
) {
446 x
= readw(ahd
->bshs
[0].maddr
+ port
);
448 x
= inw(ahd
->bshs
[(port
) >> 8].ioport
+ ((port
) & 0xFF));
455 ahd_outb(struct ahd_softc
* ahd
, long port
, uint8_t val
)
457 if (ahd
->tags
[0] == BUS_SPACE_MEMIO
) {
458 writeb(val
, ahd
->bshs
[0].maddr
+ port
);
460 outb(val
, ahd
->bshs
[(port
) >> 8].ioport
+ (port
& 0xFF));
466 ahd_outw_atomic(struct ahd_softc
* ahd
, long port
, uint16_t val
)
468 if (ahd
->tags
[0] == BUS_SPACE_MEMIO
) {
469 writew(val
, ahd
->bshs
[0].maddr
+ port
);
471 outw(val
, ahd
->bshs
[(port
) >> 8].ioport
+ (port
& 0xFF));
477 ahd_outsb(struct ahd_softc
* ahd
, long port
, uint8_t *array
, int count
)
482 * There is probably a more efficient way to do this on Linux
483 * but we don't use this for anything speed critical and this
486 for (i
= 0; i
< count
; i
++)
487 ahd_outb(ahd
, port
, *array
++);
491 ahd_insb(struct ahd_softc
* ahd
, long port
, uint8_t *array
, int count
)
496 * There is probably a more efficient way to do this on Linux
497 * but we don't use this for anything speed critical and this
500 for (i
= 0; i
< count
; i
++)
501 *array
++ = ahd_inb(ahd
, port
);
504 /**************************** Initialization **********************************/
505 int ahd_linux_register_host(struct ahd_softc
*,
506 struct scsi_host_template
*);
508 uint64_t ahd_linux_get_memsize(void);
510 /*************************** Pretty Printing **********************************/
518 void ahd_format_transinfo(struct info_str
*info
,
519 struct ahd_transinfo
*tinfo
);
521 /******************************** Locking *************************************/
523 ahd_lockinit(struct ahd_softc
*ahd
)
525 spin_lock_init(&ahd
->platform_data
->spin_lock
);
529 ahd_lock(struct ahd_softc
*ahd
, unsigned long *flags
)
531 spin_lock_irqsave(&ahd
->platform_data
->spin_lock
, *flags
);
535 ahd_unlock(struct ahd_softc
*ahd
, unsigned long *flags
)
537 spin_unlock_irqrestore(&ahd
->platform_data
->spin_lock
, *flags
);
540 /******************************* PCI Definitions ******************************/
542 * PCIM_xxx: mask to locate subfield in register
543 * PCIR_xxx: config register offset
544 * PCIC_xxx: device class
545 * PCIS_xxx: device subclass
546 * PCIP_xxx: device programming interface
547 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
548 * PCID_xxx: device ID
550 #define PCIR_DEVVENDOR 0x00
551 #define PCIR_VENDOR 0x00
552 #define PCIR_DEVICE 0x02
553 #define PCIR_COMMAND 0x04
554 #define PCIM_CMD_PORTEN 0x0001
555 #define PCIM_CMD_MEMEN 0x0002
556 #define PCIM_CMD_BUSMASTEREN 0x0004
557 #define PCIM_CMD_MWRICEN 0x0010
558 #define PCIM_CMD_PERRESPEN 0x0040
559 #define PCIM_CMD_SERRESPEN 0x0100
560 #define PCIR_STATUS 0x06
561 #define PCIR_REVID 0x08
562 #define PCIR_PROGIF 0x09
563 #define PCIR_SUBCLASS 0x0a
564 #define PCIR_CLASS 0x0b
565 #define PCIR_CACHELNSZ 0x0c
566 #define PCIR_LATTIMER 0x0d
567 #define PCIR_HEADERTYPE 0x0e
568 #define PCIM_MFDEV 0x80
569 #define PCIR_BIST 0x0f
570 #define PCIR_CAP_PTR 0x34
572 /* config registers for header type 0 devices */
573 #define PCIR_MAPS 0x10
574 #define PCIR_SUBVEND_0 0x2c
575 #define PCIR_SUBDEV_0 0x2e
577 /****************************** PCI-X definitions *****************************/
578 #define PCIXR_COMMAND 0x96
579 #define PCIXR_DEVADDR 0x98
580 #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */
581 #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */
582 #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */
583 #define PCIXR_STATUS 0x9A
584 #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */
585 #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */
586 #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */
587 #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */
588 #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */
589 #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */
590 #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */
591 #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */
592 #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */
594 extern struct pci_driver aic79xx_pci_driver
;
604 void ahd_power_state_change(struct ahd_softc
*ahd
,
605 ahd_power_state new_state
);
607 /******************************* PCI Routines *********************************/
608 int ahd_linux_pci_init(void);
609 void ahd_linux_pci_exit(void);
610 int ahd_pci_map_registers(struct ahd_softc
*ahd
);
611 int ahd_pci_map_int(struct ahd_softc
*ahd
);
613 static __inline
uint32_t ahd_pci_read_config(ahd_dev_softc_t pci
,
616 static __inline
uint32_t
617 ahd_pci_read_config(ahd_dev_softc_t pci
, int reg
, int width
)
624 pci_read_config_byte(pci
, reg
, &retval
);
630 pci_read_config_word(pci
, reg
, &retval
);
636 pci_read_config_dword(pci
, reg
, &retval
);
640 panic("ahd_pci_read_config: Read size too big");
646 static __inline
void ahd_pci_write_config(ahd_dev_softc_t pci
,
647 int reg
, uint32_t value
,
651 ahd_pci_write_config(ahd_dev_softc_t pci
, int reg
, uint32_t value
, int width
)
655 pci_write_config_byte(pci
, reg
, value
);
658 pci_write_config_word(pci
, reg
, value
);
661 pci_write_config_dword(pci
, reg
, value
);
664 panic("ahd_pci_write_config: Write size too big");
669 static __inline
int ahd_get_pci_function(ahd_dev_softc_t
);
671 ahd_get_pci_function(ahd_dev_softc_t pci
)
673 return (PCI_FUNC(pci
->devfn
));
676 static __inline
int ahd_get_pci_slot(ahd_dev_softc_t
);
678 ahd_get_pci_slot(ahd_dev_softc_t pci
)
680 return (PCI_SLOT(pci
->devfn
));
683 static __inline
int ahd_get_pci_bus(ahd_dev_softc_t
);
685 ahd_get_pci_bus(ahd_dev_softc_t pci
)
687 return (pci
->bus
->number
);
690 static __inline
void ahd_flush_device_writes(struct ahd_softc
*);
692 ahd_flush_device_writes(struct ahd_softc
*ahd
)
694 /* XXX Is this sufficient for all architectures??? */
695 ahd_inb(ahd
, INTSTAT
);
698 /**************************** Proc FS Support *********************************/
699 int ahd_linux_proc_info(struct Scsi_Host
*, char *, char **,
702 /*********************** Transaction Access Wrappers **************************/
703 static __inline
void ahd_cmd_set_transaction_status(struct scsi_cmnd
*, uint32_t);
704 static __inline
void ahd_set_transaction_status(struct scb
*, uint32_t);
705 static __inline
void ahd_cmd_set_scsi_status(struct scsi_cmnd
*, uint32_t);
706 static __inline
void ahd_set_scsi_status(struct scb
*, uint32_t);
707 static __inline
uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd
*cmd
);
708 static __inline
uint32_t ahd_get_transaction_status(struct scb
*);
709 static __inline
uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd
*cmd
);
710 static __inline
uint32_t ahd_get_scsi_status(struct scb
*);
711 static __inline
void ahd_set_transaction_tag(struct scb
*, int, u_int
);
712 static __inline u_long
ahd_get_transfer_length(struct scb
*);
713 static __inline
int ahd_get_transfer_dir(struct scb
*);
714 static __inline
void ahd_set_residual(struct scb
*, u_long
);
715 static __inline
void ahd_set_sense_residual(struct scb
*scb
, u_long resid
);
716 static __inline u_long
ahd_get_residual(struct scb
*);
717 static __inline u_long
ahd_get_sense_residual(struct scb
*);
718 static __inline
int ahd_perform_autosense(struct scb
*);
719 static __inline
uint32_t ahd_get_sense_bufsize(struct ahd_softc
*,
721 static __inline
void ahd_notify_xfer_settings_change(struct ahd_softc
*,
722 struct ahd_devinfo
*);
723 static __inline
void ahd_platform_scb_free(struct ahd_softc
*ahd
,
725 static __inline
void ahd_freeze_scb(struct scb
*scb
);
728 void ahd_cmd_set_transaction_status(struct scsi_cmnd
*cmd
, uint32_t status
)
730 cmd
->result
&= ~(CAM_STATUS_MASK
<< 16);
731 cmd
->result
|= status
<< 16;
735 void ahd_set_transaction_status(struct scb
*scb
, uint32_t status
)
737 ahd_cmd_set_transaction_status(scb
->io_ctx
,status
);
741 void ahd_cmd_set_scsi_status(struct scsi_cmnd
*cmd
, uint32_t status
)
743 cmd
->result
&= ~0xFFFF;
744 cmd
->result
|= status
;
748 void ahd_set_scsi_status(struct scb
*scb
, uint32_t status
)
750 ahd_cmd_set_scsi_status(scb
->io_ctx
, status
);
754 uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd
*cmd
)
756 return ((cmd
->result
>> 16) & CAM_STATUS_MASK
);
760 uint32_t ahd_get_transaction_status(struct scb
*scb
)
762 return (ahd_cmd_get_transaction_status(scb
->io_ctx
));
766 uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd
*cmd
)
768 return (cmd
->result
& 0xFFFF);
772 uint32_t ahd_get_scsi_status(struct scb
*scb
)
774 return (ahd_cmd_get_scsi_status(scb
->io_ctx
));
778 void ahd_set_transaction_tag(struct scb
*scb
, int enabled
, u_int type
)
781 * Nothing to do for linux as the incoming transaction
782 * has no concept of tag/non tagged, etc.
787 u_long
ahd_get_transfer_length(struct scb
*scb
)
789 return (scb
->platform_data
->xfer_len
);
793 int ahd_get_transfer_dir(struct scb
*scb
)
795 return (scb
->io_ctx
->sc_data_direction
);
799 void ahd_set_residual(struct scb
*scb
, u_long resid
)
801 scb
->io_ctx
->resid
= resid
;
805 void ahd_set_sense_residual(struct scb
*scb
, u_long resid
)
807 scb
->platform_data
->sense_resid
= resid
;
811 u_long
ahd_get_residual(struct scb
*scb
)
813 return (scb
->io_ctx
->resid
);
817 u_long
ahd_get_sense_residual(struct scb
*scb
)
819 return (scb
->platform_data
->sense_resid
);
823 int ahd_perform_autosense(struct scb
*scb
)
826 * We always perform autosense in Linux.
827 * On other platforms this is set on a
828 * per-transaction basis.
833 static __inline
uint32_t
834 ahd_get_sense_bufsize(struct ahd_softc
*ahd
, struct scb
*scb
)
836 return (sizeof(struct scsi_sense_data
));
840 ahd_notify_xfer_settings_change(struct ahd_softc
*ahd
,
841 struct ahd_devinfo
*devinfo
)
843 /* Nothing to do here for linux */
847 ahd_platform_scb_free(struct ahd_softc
*ahd
, struct scb
*scb
)
849 ahd
->flags
&= ~AHD_RESOURCE_SHORTAGE
;
852 int ahd_platform_alloc(struct ahd_softc
*ahd
, void *platform_arg
);
853 void ahd_platform_free(struct ahd_softc
*ahd
);
854 void ahd_platform_init(struct ahd_softc
*ahd
);
855 void ahd_platform_freeze_devq(struct ahd_softc
*ahd
, struct scb
*scb
);
856 void ahd_freeze_simq(struct ahd_softc
*ahd
);
857 void ahd_release_simq(struct ahd_softc
*ahd
);
860 ahd_freeze_scb(struct scb
*scb
)
862 if ((scb
->io_ctx
->result
& (CAM_DEV_QFRZN
<< 16)) == 0) {
863 scb
->io_ctx
->result
|= CAM_DEV_QFRZN
<< 16;
864 scb
->platform_data
->dev
->qfrozen
++;
868 void ahd_platform_set_tags(struct ahd_softc
*ahd
,
869 struct ahd_devinfo
*devinfo
, ahd_queue_alg
);
870 int ahd_platform_abort_scbs(struct ahd_softc
*ahd
, int target
,
871 char channel
, int lun
, u_int tag
,
872 role_t role
, uint32_t status
);
874 ahd_linux_isr(int irq
, void *dev_id
, struct pt_regs
* regs
);
875 void ahd_done(struct ahd_softc
*, struct scb
*);
876 void ahd_send_async(struct ahd_softc
*, char channel
,
877 u_int target
, u_int lun
, ac_code
, void *);
878 void ahd_print_path(struct ahd_softc
*, struct scb
*);
881 #define AHD_PCI_CONFIG 1
883 #define AHD_PCI_CONFIG 0
885 #define bootverbose aic79xx_verbose
886 extern uint32_t aic79xx_verbose
;
888 #endif /* _AIC79XX_LINUX_H_ */