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/types.h>
46 #include <linux/blkdev.h>
47 #include <linux/delay.h>
48 #include <linux/ioport.h>
49 #include <linux/pci.h>
50 #include <linux/smp_lock.h>
51 #include <linux/interrupt.h>
52 #include <linux/module.h>
53 #include <linux/slab.h>
54 #include <asm/byteorder.h>
57 #include <scsi/scsi.h>
58 #include <scsi/scsi_cmnd.h>
59 #include <scsi/scsi_eh.h>
60 #include <scsi/scsi_device.h>
61 #include <scsi/scsi_host.h>
62 #include <scsi/scsi_tcq.h>
63 #include <scsi/scsi_transport.h>
64 #include <scsi/scsi_transport_spi.h>
66 /* Core SCSI definitions */
67 #define AIC_LIB_PREFIX ahd
69 /* Name space conflict with BSD queue macros */
76 #include "scsi_message.h"
80 /*********************************** Debugging ********************************/
81 #ifdef CONFIG_AIC79XX_DEBUG_ENABLE
82 #ifdef CONFIG_AIC79XX_DEBUG_MASK
84 #define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK
87 * Compile in debugging code, but do not enable any printfs.
90 #define AHD_DEBUG_OPTS 0
92 /* No debugging code. */
95 /********************************** Misc Macros *******************************/
96 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
97 #define powerof2(x) ((((x)-1)&(x))==0)
99 /************************* Forward Declarations *******************************/
101 typedef struct pci_dev *ahd_dev_softc_t;
102 typedef struct scsi_cmnd *ahd_io_ctx_t;
104 /******************************* Byte Order ***********************************/
105 #define ahd_htobe16(x) cpu_to_be16(x)
106 #define ahd_htobe32(x) cpu_to_be32(x)
107 #define ahd_htobe64(x) cpu_to_be64(x)
108 #define ahd_htole16(x) cpu_to_le16(x)
109 #define ahd_htole32(x) cpu_to_le32(x)
110 #define ahd_htole64(x) cpu_to_le64(x)
112 #define ahd_be16toh(x) be16_to_cpu(x)
113 #define ahd_be32toh(x) be32_to_cpu(x)
114 #define ahd_be64toh(x) be64_to_cpu(x)
115 #define ahd_le16toh(x) le16_to_cpu(x)
116 #define ahd_le32toh(x) le32_to_cpu(x)
117 #define ahd_le64toh(x) le64_to_cpu(x)
119 /************************* Configuration Data *********************************/
120 extern uint32_t aic79xx_allow_memio;
121 extern struct scsi_host_template aic79xx_driver_template;
123 /***************************** Bus Space/DMA **********************************/
125 typedef uint32_t bus_size_t;
134 volatile uint8_t __iomem *maddr;
135 } bus_space_handle_t;
137 typedef struct bus_dma_segment
143 struct ahd_linux_dma_tag
145 bus_size_t alignment;
149 typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
151 typedef dma_addr_t bus_dmamap_t;
153 typedef int bus_dma_filter_t(void*, dma_addr_t);
154 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
156 #define BUS_DMA_WAITOK 0x0
157 #define BUS_DMA_NOWAIT 0x1
158 #define BUS_DMA_ALLOCNOW 0x2
159 #define BUS_DMA_LOAD_SEGS 0x4 /*
160 * Argument is an S/G list not
164 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
165 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
166 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
168 int ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t /*parent*/,
169 bus_size_t /*alignment*/, bus_size_t /*boundary*/,
170 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/,
171 bus_dma_filter_t*/*filter*/, void */*filterarg*/,
172 bus_size_t /*maxsize*/, int /*nsegments*/,
173 bus_size_t /*maxsegsz*/, int /*flags*/,
174 bus_dma_tag_t */*dma_tagp*/);
176 void ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/);
178 int ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
179 void** /*vaddr*/, int /*flags*/,
180 bus_dmamap_t* /*mapp*/);
182 void ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
183 void* /*vaddr*/, bus_dmamap_t /*map*/);
185 void ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/,
186 bus_dmamap_t /*map*/);
188 int ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t /*dmat*/,
189 bus_dmamap_t /*map*/, void * /*buf*/,
190 bus_size_t /*buflen*/, bus_dmamap_callback_t *,
191 void */*callback_arg*/, int /*flags*/);
193 int ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
196 * Operations performed by ahd_dmamap_sync().
198 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
199 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
200 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
201 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
205 * ahd_dmamap_sync is only used on buffers allocated with
206 * the pci_alloc_consistent() API. Although I'm not sure how
207 * this works on architectures with a write buffer, Linux does
208 * not have an API to sync "coherent" memory. Perhaps we need
211 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
213 /************************** Timer DataStructures ******************************/
214 typedef struct timer_list ahd_timer_t;
216 /********************************** Includes **********************************/
217 #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
218 #define AIC_DEBUG_REGISTERS 1
220 #define AIC_DEBUG_REGISTERS 0
224 /***************************** Timer Facilities *******************************/
225 #define ahd_timer_init init_timer
226 #define ahd_timer_stop del_timer_sync
227 typedef void ahd_linux_callback_t (u_long);
228 static __inline void ahd_timer_reset(ahd_timer_t *timer, int usec,
229 ahd_callback_t *func, void *arg);
232 ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
234 struct ahd_softc *ahd;
236 ahd = (struct ahd_softc *)arg;
238 timer->data = (u_long)arg;
239 timer->expires = jiffies + (usec * HZ)/1000000;
240 timer->function = (ahd_linux_callback_t*)func;
244 /***************************** SMP support ************************************/
245 #include <linux/spinlock.h>
247 #define AIC79XX_DRIVER_VERSION "3.0"
249 /*************************** Device Data Structures ***************************/
251 * A per probed device structure used to deal with some error recovery
252 * scenarios that the Linux mid-layer code just doesn't know how to
253 * handle. The structure allocated for a device only becomes persistent
254 * after a successfully completed inquiry command to the target when
255 * that inquiry data indicates a lun is present.
259 AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
260 AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
261 AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
262 AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
263 } ahd_linux_dev_flags;
265 struct ahd_linux_target;
266 struct ahd_linux_device {
267 TAILQ_ENTRY(ahd_linux_device) links;
270 * The number of transactions currently
271 * queued to the device.
276 * The currently allowed number of
277 * transactions that can be queued to
278 * the device. Must be signed for
279 * conversion from tagged to untagged
280 * mode where the device may have more
281 * than one outstanding active transaction.
286 * A positive count indicates that this
287 * device's queue is halted.
292 * Cumulative command counter.
294 u_long commands_issued;
297 * The number of tagged transactions when
298 * running at our current opening level
299 * that have been successfully received by
300 * this device since the last QUEUE FULL.
302 u_int tag_success_count;
303 #define AHD_TAG_SUCCESS_INTERVAL 50
305 ahd_linux_dev_flags flags;
310 struct timer_list timer;
313 * The high limit for the tags variable.
318 * The computed number of tags outstanding
319 * at the time of the last QUEUE FULL event.
321 u_int tags_on_last_queuefull;
324 * How many times we have seen a queue full
325 * with the same number of tags. This is used
326 * to stop our adaptive queue depth algorithm
327 * on devices with a fixed number of tags.
329 u_int last_queuefull_same_count;
330 #define AHD_LOCK_TAGS_COUNT 50
333 * How many transactions have been queued
334 * without the device going idle. We use
335 * this statistic to determine when to issue
336 * an ordered tag to prevent transaction
337 * starvation. This statistic is only updated
338 * if the AHD_DEV_PERIODIC_OTAG flag is set
341 u_int commands_since_idle_or_otag;
342 #define AHD_OTAG_THRESH 500
345 struct ahd_linux_target {
346 struct scsi_device *sdev[AHD_NUM_LUNS];
347 struct ahd_transinfo last_tinfo;
348 struct ahd_softc *ahd;
351 /********************* Definitions Required by the Core ***********************/
353 * Number of SG segments we require. So long as the S/G segments for
354 * a particular transaction are allocated in a physically contiguous
355 * manner and are allocated below 4GB, the number of S/G segments is
361 * Per-SCB OSM storage.
363 struct scb_platform_data {
364 struct ahd_linux_device *dev;
365 dma_addr_t buf_busaddr;
367 uint32_t sense_resid; /* Auto-Sense residual */
371 * Define a structure used for each host adapter. All members are
372 * aligned on a boundary >= the size of the member to honor the
373 * alignment restrictions of the various platforms supported by
376 struct ahd_platform_data {
378 * Fields accessed from interrupt context.
380 struct scsi_target *starget[AHD_NUM_TARGETS];
382 spinlock_t spin_lock;
383 struct completion *eh_done;
384 struct Scsi_Host *host; /* pointer to scsi host */
385 #define AHD_LINUX_NOIRQ ((uint32_t)~0)
386 uint32_t irq; /* IRQ for this adapter */
387 uint32_t bios_address;
388 uint32_t mem_busaddr; /* Mem Base Addr */
391 /************************** OS Utility Wrappers *******************************/
392 #define printf printk
393 #define M_NOWAIT GFP_ATOMIC
395 #define malloc(size, type, flags) kmalloc(size, flags)
396 #define free(ptr, type) kfree(ptr)
398 static __inline void ahd_delay(long);
403 * udelay on Linux can have problems for
404 * multi-millisecond waits. Wait at most
414 /***************************** Low Level I/O **********************************/
415 static __inline uint8_t ahd_inb(struct ahd_softc * ahd, long port);
416 static __inline uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
417 static __inline void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
418 static __inline void ahd_outw_atomic(struct ahd_softc * ahd,
419 long port, uint16_t val);
420 static __inline void ahd_outsb(struct ahd_softc * ahd, long port,
421 uint8_t *, int count);
422 static __inline void ahd_insb(struct ahd_softc * ahd, long port,
423 uint8_t *, int count);
425 static __inline uint8_t
426 ahd_inb(struct ahd_softc * ahd, long port)
430 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
431 x = readb(ahd->bshs[0].maddr + port);
433 x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
439 static __inline uint16_t
440 ahd_inw_atomic(struct ahd_softc * ahd, long port)
444 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
445 x = readw(ahd->bshs[0].maddr + port);
447 x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
454 ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
456 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
457 writeb(val, ahd->bshs[0].maddr + port);
459 outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
465 ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
467 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
468 writew(val, ahd->bshs[0].maddr + port);
470 outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
476 ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
481 * There is probably a more efficient way to do this on Linux
482 * but we don't use this for anything speed critical and this
485 for (i = 0; i < count; i++)
486 ahd_outb(ahd, port, *array++);
490 ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
495 * There is probably a more efficient way to do this on Linux
496 * but we don't use this for anything speed critical and this
499 for (i = 0; i < count; i++)
500 *array++ = ahd_inb(ahd, port);
503 /**************************** Initialization **********************************/
504 int ahd_linux_register_host(struct ahd_softc *,
505 struct scsi_host_template *);
507 uint64_t ahd_linux_get_memsize(void);
509 /*************************** Pretty Printing **********************************/
517 void ahd_format_transinfo(struct info_str *info,
518 struct ahd_transinfo *tinfo);
520 /******************************** Locking *************************************/
522 ahd_lockinit(struct ahd_softc *ahd)
524 spin_lock_init(&ahd->platform_data->spin_lock);
528 ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
530 spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags);
534 ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
536 spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
539 /******************************* PCI Definitions ******************************/
541 * PCIM_xxx: mask to locate subfield in register
542 * PCIR_xxx: config register offset
543 * PCIC_xxx: device class
544 * PCIS_xxx: device subclass
545 * PCIP_xxx: device programming interface
546 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
547 * PCID_xxx: device ID
549 #define PCIR_DEVVENDOR 0x00
550 #define PCIR_VENDOR 0x00
551 #define PCIR_DEVICE 0x02
552 #define PCIR_COMMAND 0x04
553 #define PCIM_CMD_PORTEN 0x0001
554 #define PCIM_CMD_MEMEN 0x0002
555 #define PCIM_CMD_BUSMASTEREN 0x0004
556 #define PCIM_CMD_MWRICEN 0x0010
557 #define PCIM_CMD_PERRESPEN 0x0040
558 #define PCIM_CMD_SERRESPEN 0x0100
559 #define PCIR_STATUS 0x06
560 #define PCIR_REVID 0x08
561 #define PCIR_PROGIF 0x09
562 #define PCIR_SUBCLASS 0x0a
563 #define PCIR_CLASS 0x0b
564 #define PCIR_CACHELNSZ 0x0c
565 #define PCIR_LATTIMER 0x0d
566 #define PCIR_HEADERTYPE 0x0e
567 #define PCIM_MFDEV 0x80
568 #define PCIR_BIST 0x0f
569 #define PCIR_CAP_PTR 0x34
571 /* config registers for header type 0 devices */
572 #define PCIR_MAPS 0x10
573 #define PCIR_SUBVEND_0 0x2c
574 #define PCIR_SUBDEV_0 0x2e
576 /****************************** PCI-X definitions *****************************/
577 #define PCIXR_COMMAND 0x96
578 #define PCIXR_DEVADDR 0x98
579 #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */
580 #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */
581 #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */
582 #define PCIXR_STATUS 0x9A
583 #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */
584 #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */
585 #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */
586 #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */
587 #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */
588 #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */
589 #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */
590 #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */
591 #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */
593 extern struct pci_driver aic79xx_pci_driver;
603 void ahd_power_state_change(struct ahd_softc *ahd,
604 ahd_power_state new_state);
606 /******************************* PCI Routines *********************************/
607 int ahd_linux_pci_init(void);
608 void ahd_linux_pci_exit(void);
609 int ahd_pci_map_registers(struct ahd_softc *ahd);
610 int ahd_pci_map_int(struct ahd_softc *ahd);
612 static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
615 static __inline uint32_t
616 ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
623 pci_read_config_byte(pci, reg, &retval);
629 pci_read_config_word(pci, reg, &retval);
635 pci_read_config_dword(pci, reg, &retval);
639 panic("ahd_pci_read_config: Read size too big");
645 static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
646 int reg, uint32_t value,
650 ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
654 pci_write_config_byte(pci, reg, value);
657 pci_write_config_word(pci, reg, value);
660 pci_write_config_dword(pci, reg, value);
663 panic("ahd_pci_write_config: Write size too big");
668 static __inline int ahd_get_pci_function(ahd_dev_softc_t);
670 ahd_get_pci_function(ahd_dev_softc_t pci)
672 return (PCI_FUNC(pci->devfn));
675 static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
677 ahd_get_pci_slot(ahd_dev_softc_t pci)
679 return (PCI_SLOT(pci->devfn));
682 static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
684 ahd_get_pci_bus(ahd_dev_softc_t pci)
686 return (pci->bus->number);
689 static __inline void ahd_flush_device_writes(struct ahd_softc *);
691 ahd_flush_device_writes(struct ahd_softc *ahd)
693 /* XXX Is this sufficient for all architectures??? */
694 ahd_inb(ahd, INTSTAT);
697 /**************************** Proc FS Support *********************************/
698 int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
701 /*********************** Transaction Access Wrappers **************************/
702 static __inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
703 static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
704 static __inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
705 static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
706 static __inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd);
707 static __inline uint32_t ahd_get_transaction_status(struct scb *);
708 static __inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd);
709 static __inline uint32_t ahd_get_scsi_status(struct scb *);
710 static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
711 static __inline u_long ahd_get_transfer_length(struct scb *);
712 static __inline int ahd_get_transfer_dir(struct scb *);
713 static __inline void ahd_set_residual(struct scb *, u_long);
714 static __inline void ahd_set_sense_residual(struct scb *scb, u_long resid);
715 static __inline u_long ahd_get_residual(struct scb *);
716 static __inline u_long ahd_get_sense_residual(struct scb *);
717 static __inline int ahd_perform_autosense(struct scb *);
718 static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *,
720 static __inline void ahd_notify_xfer_settings_change(struct ahd_softc *,
721 struct ahd_devinfo *);
722 static __inline void ahd_platform_scb_free(struct ahd_softc *ahd,
724 static __inline void ahd_freeze_scb(struct scb *scb);
727 void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
729 cmd->result &= ~(CAM_STATUS_MASK << 16);
730 cmd->result |= status << 16;
734 void ahd_set_transaction_status(struct scb *scb, uint32_t status)
736 ahd_cmd_set_transaction_status(scb->io_ctx,status);
740 void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
742 cmd->result &= ~0xFFFF;
743 cmd->result |= status;
747 void ahd_set_scsi_status(struct scb *scb, uint32_t status)
749 ahd_cmd_set_scsi_status(scb->io_ctx, status);
753 uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
755 return ((cmd->result >> 16) & CAM_STATUS_MASK);
759 uint32_t ahd_get_transaction_status(struct scb *scb)
761 return (ahd_cmd_get_transaction_status(scb->io_ctx));
765 uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
767 return (cmd->result & 0xFFFF);
771 uint32_t ahd_get_scsi_status(struct scb *scb)
773 return (ahd_cmd_get_scsi_status(scb->io_ctx));
777 void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
780 * Nothing to do for linux as the incoming transaction
781 * has no concept of tag/non tagged, etc.
786 u_long ahd_get_transfer_length(struct scb *scb)
788 return (scb->platform_data->xfer_len);
792 int ahd_get_transfer_dir(struct scb *scb)
794 return (scb->io_ctx->sc_data_direction);
798 void ahd_set_residual(struct scb *scb, u_long resid)
800 scb->io_ctx->resid = resid;
804 void ahd_set_sense_residual(struct scb *scb, u_long resid)
806 scb->platform_data->sense_resid = resid;
810 u_long ahd_get_residual(struct scb *scb)
812 return (scb->io_ctx->resid);
816 u_long ahd_get_sense_residual(struct scb *scb)
818 return (scb->platform_data->sense_resid);
822 int ahd_perform_autosense(struct scb *scb)
825 * We always perform autosense in Linux.
826 * On other platforms this is set on a
827 * per-transaction basis.
832 static __inline uint32_t
833 ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
835 return (sizeof(struct scsi_sense_data));
839 ahd_notify_xfer_settings_change(struct ahd_softc *ahd,
840 struct ahd_devinfo *devinfo)
842 /* Nothing to do here for linux */
846 ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
848 ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
851 int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
852 void ahd_platform_free(struct ahd_softc *ahd);
853 void ahd_platform_init(struct ahd_softc *ahd);
854 void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
855 void ahd_freeze_simq(struct ahd_softc *ahd);
856 void ahd_release_simq(struct ahd_softc *ahd);
859 ahd_freeze_scb(struct scb *scb)
861 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
862 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
863 scb->platform_data->dev->qfrozen++;
867 void ahd_platform_set_tags(struct ahd_softc *ahd,
868 struct ahd_devinfo *devinfo, ahd_queue_alg);
869 int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
870 char channel, int lun, u_int tag,
871 role_t role, uint32_t status);
873 ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
874 void ahd_done(struct ahd_softc*, struct scb*);
875 void ahd_send_async(struct ahd_softc *, char channel,
876 u_int target, u_int lun, ac_code, void *);
877 void ahd_print_path(struct ahd_softc *, struct scb *);
880 #define AHD_PCI_CONFIG 1
882 #define AHD_PCI_CONFIG 0
884 #define bootverbose aic79xx_verbose
885 extern uint32_t aic79xx_verbose;
887 #endif /* _AIC79XX_LINUX_H_ */