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_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 /********************* Definitions Required by the Core ***********************/
347 * Number of SG segments we require. So long as the S/G segments for
348 * a particular transaction are allocated in a physically contiguous
349 * manner and are allocated below 4GB, the number of S/G segments is
355 * Per-SCB OSM storage.
357 struct scb_platform_data {
358 struct ahd_linux_device *dev;
359 dma_addr_t buf_busaddr;
361 uint32_t sense_resid; /* Auto-Sense residual */
365 * Define a structure used for each host adapter. All members are
366 * aligned on a boundary >= the size of the member to honor the
367 * alignment restrictions of the various platforms supported by
370 struct ahd_platform_data {
372 * Fields accessed from interrupt context.
374 struct scsi_target *starget[AHD_NUM_TARGETS];
376 spinlock_t spin_lock;
377 struct completion *eh_done;
378 struct Scsi_Host *host; /* pointer to scsi host */
379 #define AHD_LINUX_NOIRQ ((uint32_t)~0)
380 uint32_t irq; /* IRQ for this adapter */
381 uint32_t bios_address;
382 uint32_t mem_busaddr; /* Mem Base Addr */
385 /************************** OS Utility Wrappers *******************************/
386 #define printf printk
387 #define M_NOWAIT GFP_ATOMIC
389 #define malloc(size, type, flags) kmalloc(size, flags)
390 #define free(ptr, type) kfree(ptr)
392 static __inline void ahd_delay(long);
397 * udelay on Linux can have problems for
398 * multi-millisecond waits. Wait at most
408 /***************************** Low Level I/O **********************************/
409 static __inline uint8_t ahd_inb(struct ahd_softc * ahd, long port);
410 static __inline uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
411 static __inline void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
412 static __inline void ahd_outw_atomic(struct ahd_softc * ahd,
413 long port, uint16_t val);
414 static __inline void ahd_outsb(struct ahd_softc * ahd, long port,
415 uint8_t *, int count);
416 static __inline void ahd_insb(struct ahd_softc * ahd, long port,
417 uint8_t *, int count);
419 static __inline uint8_t
420 ahd_inb(struct ahd_softc * ahd, long port)
424 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
425 x = readb(ahd->bshs[0].maddr + port);
427 x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
433 static __inline uint16_t
434 ahd_inw_atomic(struct ahd_softc * ahd, long port)
438 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
439 x = readw(ahd->bshs[0].maddr + port);
441 x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
448 ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
450 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
451 writeb(val, ahd->bshs[0].maddr + port);
453 outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
459 ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
461 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
462 writew(val, ahd->bshs[0].maddr + port);
464 outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
470 ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
475 * There is probably a more efficient way to do this on Linux
476 * but we don't use this for anything speed critical and this
479 for (i = 0; i < count; i++)
480 ahd_outb(ahd, port, *array++);
484 ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
489 * There is probably a more efficient way to do this on Linux
490 * but we don't use this for anything speed critical and this
493 for (i = 0; i < count; i++)
494 *array++ = ahd_inb(ahd, port);
497 /**************************** Initialization **********************************/
498 int ahd_linux_register_host(struct ahd_softc *,
499 struct scsi_host_template *);
501 uint64_t ahd_linux_get_memsize(void);
503 /*************************** Pretty Printing **********************************/
511 void ahd_format_transinfo(struct info_str *info,
512 struct ahd_transinfo *tinfo);
514 /******************************** Locking *************************************/
516 ahd_lockinit(struct ahd_softc *ahd)
518 spin_lock_init(&ahd->platform_data->spin_lock);
522 ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
524 spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags);
528 ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
530 spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
533 /******************************* PCI Definitions ******************************/
535 * PCIM_xxx: mask to locate subfield in register
536 * PCIR_xxx: config register offset
537 * PCIC_xxx: device class
538 * PCIS_xxx: device subclass
539 * PCIP_xxx: device programming interface
540 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
541 * PCID_xxx: device ID
543 #define PCIR_DEVVENDOR 0x00
544 #define PCIR_VENDOR 0x00
545 #define PCIR_DEVICE 0x02
546 #define PCIR_COMMAND 0x04
547 #define PCIM_CMD_PORTEN 0x0001
548 #define PCIM_CMD_MEMEN 0x0002
549 #define PCIM_CMD_BUSMASTEREN 0x0004
550 #define PCIM_CMD_MWRICEN 0x0010
551 #define PCIM_CMD_PERRESPEN 0x0040
552 #define PCIM_CMD_SERRESPEN 0x0100
553 #define PCIR_STATUS 0x06
554 #define PCIR_REVID 0x08
555 #define PCIR_PROGIF 0x09
556 #define PCIR_SUBCLASS 0x0a
557 #define PCIR_CLASS 0x0b
558 #define PCIR_CACHELNSZ 0x0c
559 #define PCIR_LATTIMER 0x0d
560 #define PCIR_HEADERTYPE 0x0e
561 #define PCIM_MFDEV 0x80
562 #define PCIR_BIST 0x0f
563 #define PCIR_CAP_PTR 0x34
565 /* config registers for header type 0 devices */
566 #define PCIR_MAPS 0x10
567 #define PCIR_SUBVEND_0 0x2c
568 #define PCIR_SUBDEV_0 0x2e
570 /****************************** PCI-X definitions *****************************/
571 #define PCIXR_COMMAND 0x96
572 #define PCIXR_DEVADDR 0x98
573 #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */
574 #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */
575 #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */
576 #define PCIXR_STATUS 0x9A
577 #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */
578 #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */
579 #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */
580 #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */
581 #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */
582 #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */
583 #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */
584 #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */
585 #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */
587 extern struct pci_driver aic79xx_pci_driver;
597 void ahd_power_state_change(struct ahd_softc *ahd,
598 ahd_power_state new_state);
600 /******************************* PCI Routines *********************************/
601 int ahd_linux_pci_init(void);
602 void ahd_linux_pci_exit(void);
603 int ahd_pci_map_registers(struct ahd_softc *ahd);
604 int ahd_pci_map_int(struct ahd_softc *ahd);
606 static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
609 static __inline uint32_t
610 ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
617 pci_read_config_byte(pci, reg, &retval);
623 pci_read_config_word(pci, reg, &retval);
629 pci_read_config_dword(pci, reg, &retval);
633 panic("ahd_pci_read_config: Read size too big");
639 static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
640 int reg, uint32_t value,
644 ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
648 pci_write_config_byte(pci, reg, value);
651 pci_write_config_word(pci, reg, value);
654 pci_write_config_dword(pci, reg, value);
657 panic("ahd_pci_write_config: Write size too big");
662 static __inline int ahd_get_pci_function(ahd_dev_softc_t);
664 ahd_get_pci_function(ahd_dev_softc_t pci)
666 return (PCI_FUNC(pci->devfn));
669 static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
671 ahd_get_pci_slot(ahd_dev_softc_t pci)
673 return (PCI_SLOT(pci->devfn));
676 static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
678 ahd_get_pci_bus(ahd_dev_softc_t pci)
680 return (pci->bus->number);
683 static __inline void ahd_flush_device_writes(struct ahd_softc *);
685 ahd_flush_device_writes(struct ahd_softc *ahd)
687 /* XXX Is this sufficient for all architectures??? */
688 ahd_inb(ahd, INTSTAT);
691 /**************************** Proc FS Support *********************************/
692 int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
695 /*********************** Transaction Access Wrappers **************************/
696 static __inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
697 static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
698 static __inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
699 static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
700 static __inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd);
701 static __inline uint32_t ahd_get_transaction_status(struct scb *);
702 static __inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd);
703 static __inline uint32_t ahd_get_scsi_status(struct scb *);
704 static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
705 static __inline u_long ahd_get_transfer_length(struct scb *);
706 static __inline int ahd_get_transfer_dir(struct scb *);
707 static __inline void ahd_set_residual(struct scb *, u_long);
708 static __inline void ahd_set_sense_residual(struct scb *scb, u_long resid);
709 static __inline u_long ahd_get_residual(struct scb *);
710 static __inline u_long ahd_get_sense_residual(struct scb *);
711 static __inline int ahd_perform_autosense(struct scb *);
712 static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *,
714 static __inline void ahd_notify_xfer_settings_change(struct ahd_softc *,
715 struct ahd_devinfo *);
716 static __inline void ahd_platform_scb_free(struct ahd_softc *ahd,
718 static __inline void ahd_freeze_scb(struct scb *scb);
721 void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
723 cmd->result &= ~(CAM_STATUS_MASK << 16);
724 cmd->result |= status << 16;
728 void ahd_set_transaction_status(struct scb *scb, uint32_t status)
730 ahd_cmd_set_transaction_status(scb->io_ctx,status);
734 void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
736 cmd->result &= ~0xFFFF;
737 cmd->result |= status;
741 void ahd_set_scsi_status(struct scb *scb, uint32_t status)
743 ahd_cmd_set_scsi_status(scb->io_ctx, status);
747 uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
749 return ((cmd->result >> 16) & CAM_STATUS_MASK);
753 uint32_t ahd_get_transaction_status(struct scb *scb)
755 return (ahd_cmd_get_transaction_status(scb->io_ctx));
759 uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
761 return (cmd->result & 0xFFFF);
765 uint32_t ahd_get_scsi_status(struct scb *scb)
767 return (ahd_cmd_get_scsi_status(scb->io_ctx));
771 void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
774 * Nothing to do for linux as the incoming transaction
775 * has no concept of tag/non tagged, etc.
780 u_long ahd_get_transfer_length(struct scb *scb)
782 return (scb->platform_data->xfer_len);
786 int ahd_get_transfer_dir(struct scb *scb)
788 return (scb->io_ctx->sc_data_direction);
792 void ahd_set_residual(struct scb *scb, u_long resid)
794 scb->io_ctx->resid = resid;
798 void ahd_set_sense_residual(struct scb *scb, u_long resid)
800 scb->platform_data->sense_resid = resid;
804 u_long ahd_get_residual(struct scb *scb)
806 return (scb->io_ctx->resid);
810 u_long ahd_get_sense_residual(struct scb *scb)
812 return (scb->platform_data->sense_resid);
816 int ahd_perform_autosense(struct scb *scb)
819 * We always perform autosense in Linux.
820 * On other platforms this is set on a
821 * per-transaction basis.
826 static __inline uint32_t
827 ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
829 return (sizeof(struct scsi_sense_data));
833 ahd_notify_xfer_settings_change(struct ahd_softc *ahd,
834 struct ahd_devinfo *devinfo)
836 /* Nothing to do here for linux */
840 ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
842 ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
845 int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
846 void ahd_platform_free(struct ahd_softc *ahd);
847 void ahd_platform_init(struct ahd_softc *ahd);
848 void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
849 void ahd_freeze_simq(struct ahd_softc *ahd);
850 void ahd_release_simq(struct ahd_softc *ahd);
853 ahd_freeze_scb(struct scb *scb)
855 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
856 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
857 scb->platform_data->dev->qfrozen++;
861 void ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
862 struct ahd_devinfo *devinfo, ahd_queue_alg);
863 int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
864 char channel, int lun, u_int tag,
865 role_t role, uint32_t status);
867 ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
868 void ahd_done(struct ahd_softc*, struct scb*);
869 void ahd_send_async(struct ahd_softc *, char channel,
870 u_int target, u_int lun, ac_code);
871 void ahd_print_path(struct ahd_softc *, struct scb *);
874 #define AHD_PCI_CONFIG 1
876 #define AHD_PCI_CONFIG 0
878 #define bootverbose aic79xx_verbose
879 extern uint32_t aic79xx_verbose;
881 #endif /* _AIC79XX_LINUX_H_ */