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#137 $
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/version.h>
53 #include <linux/interrupt.h>
54 #include <linux/module.h>
55 #include <linux/slab.h>
56 #include <asm/byteorder.h>
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_eh.h>
62 #include <scsi/scsi_device.h>
63 #include <scsi/scsi_host.h>
64 #include <scsi/scsi_tcq.h>
65 #include <scsi/scsi_transport.h>
66 #include <scsi/scsi_transport_spi.h>
68 /* Core SCSI definitions */
69 #define AIC_LIB_PREFIX ahd
71 /* Name space conflict with BSD queue macros */
78 #include "scsi_message.h"
82 /*********************************** Debugging ********************************/
83 #ifdef CONFIG_AIC79XX_DEBUG_ENABLE
84 #ifdef CONFIG_AIC79XX_DEBUG_MASK
86 #define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK
89 * Compile in debugging code, but do not enable any printfs.
92 #define AHD_DEBUG_OPTS 0
94 /* No debugging code. */
97 /********************************** Misc Macros *******************************/
98 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
99 #define powerof2(x) ((((x)-1)&(x))==0)
101 /************************* Forward Declarations *******************************/
103 typedef struct pci_dev *ahd_dev_softc_t;
104 typedef struct scsi_cmnd *ahd_io_ctx_t;
106 /******************************* Byte Order ***********************************/
107 #define ahd_htobe16(x) cpu_to_be16(x)
108 #define ahd_htobe32(x) cpu_to_be32(x)
109 #define ahd_htobe64(x) cpu_to_be64(x)
110 #define ahd_htole16(x) cpu_to_le16(x)
111 #define ahd_htole32(x) cpu_to_le32(x)
112 #define ahd_htole64(x) cpu_to_le64(x)
114 #define ahd_be16toh(x) be16_to_cpu(x)
115 #define ahd_be32toh(x) be32_to_cpu(x)
116 #define ahd_be64toh(x) be64_to_cpu(x)
117 #define ahd_le16toh(x) le16_to_cpu(x)
118 #define ahd_le32toh(x) le32_to_cpu(x)
119 #define ahd_le64toh(x) le64_to_cpu(x)
121 /************************* Configuration Data *********************************/
122 extern uint32_t aic79xx_allow_memio;
123 extern int aic79xx_detect_complete;
124 extern struct scsi_host_template aic79xx_driver_template;
126 /***************************** Bus Space/DMA **********************************/
128 typedef uint32_t bus_size_t;
137 volatile uint8_t __iomem *maddr;
138 } bus_space_handle_t;
140 typedef struct bus_dma_segment
146 struct ahd_linux_dma_tag
148 bus_size_t alignment;
152 typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
154 typedef dma_addr_t bus_dmamap_t;
156 typedef int bus_dma_filter_t(void*, dma_addr_t);
157 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
159 #define BUS_DMA_WAITOK 0x0
160 #define BUS_DMA_NOWAIT 0x1
161 #define BUS_DMA_ALLOCNOW 0x2
162 #define BUS_DMA_LOAD_SEGS 0x4 /*
163 * Argument is an S/G list not
167 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
168 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
169 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
171 int ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t /*parent*/,
172 bus_size_t /*alignment*/, bus_size_t /*boundary*/,
173 dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/,
174 bus_dma_filter_t*/*filter*/, void */*filterarg*/,
175 bus_size_t /*maxsize*/, int /*nsegments*/,
176 bus_size_t /*maxsegsz*/, int /*flags*/,
177 bus_dma_tag_t */*dma_tagp*/);
179 void ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/);
181 int ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
182 void** /*vaddr*/, int /*flags*/,
183 bus_dmamap_t* /*mapp*/);
185 void ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
186 void* /*vaddr*/, bus_dmamap_t /*map*/);
188 void ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/,
189 bus_dmamap_t /*map*/);
191 int ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t /*dmat*/,
192 bus_dmamap_t /*map*/, void * /*buf*/,
193 bus_size_t /*buflen*/, bus_dmamap_callback_t *,
194 void */*callback_arg*/, int /*flags*/);
196 int ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
199 * Operations performed by ahd_dmamap_sync().
201 #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
202 #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
203 #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
204 #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
208 * ahd_dmamap_sync is only used on buffers allocated with
209 * the pci_alloc_consistent() API. Although I'm not sure how
210 * this works on architectures with a write buffer, Linux does
211 * not have an API to sync "coherent" memory. Perhaps we need
214 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
216 /************************** Timer DataStructures ******************************/
217 typedef struct timer_list ahd_timer_t;
219 /********************************** Includes **********************************/
220 #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
221 #define AIC_DEBUG_REGISTERS 1
223 #define AIC_DEBUG_REGISTERS 0
227 /***************************** Timer Facilities *******************************/
228 #define ahd_timer_init init_timer
229 #define ahd_timer_stop del_timer_sync
230 typedef void ahd_linux_callback_t (u_long);
231 static __inline void ahd_timer_reset(ahd_timer_t *timer, int usec,
232 ahd_callback_t *func, void *arg);
233 static __inline void ahd_scb_timer_reset(struct scb *scb, u_int usec);
236 ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
238 struct ahd_softc *ahd;
240 ahd = (struct ahd_softc *)arg;
242 timer->data = (u_long)arg;
243 timer->expires = jiffies + (usec * HZ)/1000000;
244 timer->function = (ahd_linux_callback_t*)func;
249 ahd_scb_timer_reset(struct scb *scb, u_int usec)
251 mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000);
254 /***************************** SMP support ************************************/
255 #include <linux/spinlock.h>
257 #define AHD_SCSI_HAS_HOST_LOCK 1
259 #define AIC79XX_DRIVER_VERSION "1.3.11"
261 /**************************** Front End Queues ********************************/
263 * Data structure used to cast the Linux struct scsi_cmnd to something
264 * that allows us to use the queue macros. The linux structure has
265 * plenty of space to hold the links fields as required by the queue
266 * macros, but the queue macors require them to have the correct type.
268 struct ahd_cmd_internal {
269 /* Area owned by the Linux scsi layer. */
270 uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)];
272 STAILQ_ENTRY(ahd_cmd) ste;
273 LIST_ENTRY(ahd_cmd) le;
274 TAILQ_ENTRY(ahd_cmd) tqe;
281 struct ahd_cmd_internal icmd;
282 struct scsi_cmnd scsi_cmd;
286 #define acmd_icmd(cmd) ((cmd)->un.icmd)
287 #define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd)
288 #define acmd_links un.icmd.links
290 /*************************** Device Data Structures ***************************/
292 * A per probed device structure used to deal with some error recovery
293 * scenarios that the Linux mid-layer code just doesn't know how to
294 * handle. The structure allocated for a device only becomes persistent
295 * after a successfully completed inquiry command to the target when
296 * that inquiry data indicates a lun is present.
300 AHD_DEV_UNCONFIGURED = 0x01,
301 AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
302 AHD_DEV_TIMER_ACTIVE = 0x04, /* Our timer is active */
303 AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
304 AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
305 AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
306 AHD_DEV_SLAVE_CONFIGURED = 0x80 /* slave_configure() has been called */
307 } ahd_linux_dev_flags;
309 struct ahd_linux_target;
310 struct ahd_linux_device {
311 TAILQ_ENTRY(ahd_linux_device) links;
314 * The number of transactions currently
315 * queued to the device.
320 * The currently allowed number of
321 * transactions that can be queued to
322 * the device. Must be signed for
323 * conversion from tagged to untagged
324 * mode where the device may have more
325 * than one outstanding active transaction.
330 * A positive count indicates that this
331 * device's queue is halted.
336 * Cumulative command counter.
338 u_long commands_issued;
341 * The number of tagged transactions when
342 * running at our current opening level
343 * that have been successfully received by
344 * this device since the last QUEUE FULL.
346 u_int tag_success_count;
347 #define AHD_TAG_SUCCESS_INTERVAL 50
349 ahd_linux_dev_flags flags;
354 struct timer_list timer;
357 * The high limit for the tags variable.
362 * The computed number of tags outstanding
363 * at the time of the last QUEUE FULL event.
365 u_int tags_on_last_queuefull;
368 * How many times we have seen a queue full
369 * with the same number of tags. This is used
370 * to stop our adaptive queue depth algorithm
371 * on devices with a fixed number of tags.
373 u_int last_queuefull_same_count;
374 #define AHD_LOCK_TAGS_COUNT 50
377 * How many transactions have been queued
378 * without the device going idle. We use
379 * this statistic to determine when to issue
380 * an ordered tag to prevent transaction
381 * starvation. This statistic is only updated
382 * if the AHD_DEV_PERIODIC_OTAG flag is set
385 u_int commands_since_idle_or_otag;
386 #define AHD_OTAG_THRESH 500
389 struct ahd_linux_target {
390 struct scsi_device *sdev[AHD_NUM_LUNS];
391 struct ahd_transinfo last_tinfo;
392 struct ahd_softc *ahd;
395 /********************* Definitions Required by the Core ***********************/
397 * Number of SG segments we require. So long as the S/G segments for
398 * a particular transaction are allocated in a physically contiguous
399 * manner and are allocated below 4GB, the number of S/G segments is
405 * Per-SCB OSM storage.
407 struct scb_platform_data {
408 struct ahd_linux_device *dev;
409 dma_addr_t buf_busaddr;
411 uint32_t sense_resid; /* Auto-Sense residual */
415 * Define a structure used for each host adapter. All members are
416 * aligned on a boundary >= the size of the member to honor the
417 * alignment restrictions of the various platforms supported by
420 struct ahd_platform_data {
422 * Fields accessed from interrupt context.
424 struct scsi_target *starget[AHD_NUM_TARGETS];
426 spinlock_t spin_lock;
428 struct timer_list reset_timer;
429 struct semaphore eh_sem;
430 struct Scsi_Host *host; /* pointer to scsi host */
431 #define AHD_LINUX_NOIRQ ((uint32_t)~0)
432 uint32_t irq; /* IRQ for this adapter */
433 uint32_t bios_address;
434 uint32_t mem_busaddr; /* Mem Base Addr */
435 uint64_t hw_dma_mask;
436 #define AHD_SCB_UP_EH_SEM 0x1
440 /************************** OS Utility Wrappers *******************************/
441 #define printf printk
442 #define M_NOWAIT GFP_ATOMIC
444 #define malloc(size, type, flags) kmalloc(size, flags)
445 #define free(ptr, type) kfree(ptr)
447 static __inline void ahd_delay(long);
452 * udelay on Linux can have problems for
453 * multi-millisecond waits. Wait at most
463 /***************************** Low Level I/O **********************************/
464 static __inline uint8_t ahd_inb(struct ahd_softc * ahd, long port);
465 static __inline uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
466 static __inline void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
467 static __inline void ahd_outw_atomic(struct ahd_softc * ahd,
468 long port, uint16_t val);
469 static __inline void ahd_outsb(struct ahd_softc * ahd, long port,
470 uint8_t *, int count);
471 static __inline void ahd_insb(struct ahd_softc * ahd, long port,
472 uint8_t *, int count);
474 static __inline uint8_t
475 ahd_inb(struct ahd_softc * ahd, long port)
479 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
480 x = readb(ahd->bshs[0].maddr + port);
482 x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
488 static __inline uint16_t
489 ahd_inw_atomic(struct ahd_softc * ahd, long port)
493 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
494 x = readw(ahd->bshs[0].maddr + port);
496 x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
503 ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
505 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
506 writeb(val, ahd->bshs[0].maddr + port);
508 outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
514 ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
516 if (ahd->tags[0] == BUS_SPACE_MEMIO) {
517 writew(val, ahd->bshs[0].maddr + port);
519 outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
525 ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
530 * There is probably a more efficient way to do this on Linux
531 * but we don't use this for anything speed critical and this
534 for (i = 0; i < count; i++)
535 ahd_outb(ahd, port, *array++);
539 ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
544 * There is probably a more efficient way to do this on Linux
545 * but we don't use this for anything speed critical and this
548 for (i = 0; i < count; i++)
549 *array++ = ahd_inb(ahd, port);
552 /**************************** Initialization **********************************/
553 int ahd_linux_register_host(struct ahd_softc *,
554 struct scsi_host_template *);
556 uint64_t ahd_linux_get_memsize(void);
558 /*************************** Pretty Printing **********************************/
566 void ahd_format_transinfo(struct info_str *info,
567 struct ahd_transinfo *tinfo);
569 /******************************** Locking *************************************/
570 /* Lock protecting internal data structures */
571 static __inline void ahd_lockinit(struct ahd_softc *);
572 static __inline void ahd_lock(struct ahd_softc *, unsigned long *flags);
573 static __inline void ahd_unlock(struct ahd_softc *, unsigned long *flags);
575 /* Lock held during ahd_list manipulation and ahd softc frees */
576 extern spinlock_t ahd_list_spinlock;
577 static __inline void ahd_list_lockinit(void);
578 static __inline void ahd_list_lock(unsigned long *flags);
579 static __inline void ahd_list_unlock(unsigned long *flags);
582 ahd_lockinit(struct ahd_softc *ahd)
584 spin_lock_init(&ahd->platform_data->spin_lock);
588 ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
590 spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags);
594 ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
596 spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
600 ahd_list_lockinit(void)
602 spin_lock_init(&ahd_list_spinlock);
606 ahd_list_lock(unsigned long *flags)
608 spin_lock_irqsave(&ahd_list_spinlock, *flags);
612 ahd_list_unlock(unsigned long *flags)
614 spin_unlock_irqrestore(&ahd_list_spinlock, *flags);
617 /******************************* PCI Definitions ******************************/
619 * PCIM_xxx: mask to locate subfield in register
620 * PCIR_xxx: config register offset
621 * PCIC_xxx: device class
622 * PCIS_xxx: device subclass
623 * PCIP_xxx: device programming interface
624 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
625 * PCID_xxx: device ID
627 #define PCIR_DEVVENDOR 0x00
628 #define PCIR_VENDOR 0x00
629 #define PCIR_DEVICE 0x02
630 #define PCIR_COMMAND 0x04
631 #define PCIM_CMD_PORTEN 0x0001
632 #define PCIM_CMD_MEMEN 0x0002
633 #define PCIM_CMD_BUSMASTEREN 0x0004
634 #define PCIM_CMD_MWRICEN 0x0010
635 #define PCIM_CMD_PERRESPEN 0x0040
636 #define PCIM_CMD_SERRESPEN 0x0100
637 #define PCIR_STATUS 0x06
638 #define PCIR_REVID 0x08
639 #define PCIR_PROGIF 0x09
640 #define PCIR_SUBCLASS 0x0a
641 #define PCIR_CLASS 0x0b
642 #define PCIR_CACHELNSZ 0x0c
643 #define PCIR_LATTIMER 0x0d
644 #define PCIR_HEADERTYPE 0x0e
645 #define PCIM_MFDEV 0x80
646 #define PCIR_BIST 0x0f
647 #define PCIR_CAP_PTR 0x34
649 /* config registers for header type 0 devices */
650 #define PCIR_MAPS 0x10
651 #define PCIR_SUBVEND_0 0x2c
652 #define PCIR_SUBDEV_0 0x2e
654 /****************************** PCI-X definitions *****************************/
655 #define PCIXR_COMMAND 0x96
656 #define PCIXR_DEVADDR 0x98
657 #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */
658 #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */
659 #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */
660 #define PCIXR_STATUS 0x9A
661 #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */
662 #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */
663 #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */
664 #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */
665 #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */
666 #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */
667 #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */
668 #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */
669 #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */
671 extern struct pci_driver aic79xx_pci_driver;
681 void ahd_power_state_change(struct ahd_softc *ahd,
682 ahd_power_state new_state);
684 /******************************* PCI Routines *********************************/
685 int ahd_linux_pci_init(void);
686 void ahd_linux_pci_exit(void);
687 int ahd_pci_map_registers(struct ahd_softc *ahd);
688 int ahd_pci_map_int(struct ahd_softc *ahd);
690 static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
693 static __inline uint32_t
694 ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
701 pci_read_config_byte(pci, reg, &retval);
707 pci_read_config_word(pci, reg, &retval);
713 pci_read_config_dword(pci, reg, &retval);
717 panic("ahd_pci_read_config: Read size too big");
723 static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
724 int reg, uint32_t value,
728 ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
732 pci_write_config_byte(pci, reg, value);
735 pci_write_config_word(pci, reg, value);
738 pci_write_config_dword(pci, reg, value);
741 panic("ahd_pci_write_config: Write size too big");
746 static __inline int ahd_get_pci_function(ahd_dev_softc_t);
748 ahd_get_pci_function(ahd_dev_softc_t pci)
750 return (PCI_FUNC(pci->devfn));
753 static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
755 ahd_get_pci_slot(ahd_dev_softc_t pci)
757 return (PCI_SLOT(pci->devfn));
760 static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
762 ahd_get_pci_bus(ahd_dev_softc_t pci)
764 return (pci->bus->number);
767 static __inline void ahd_flush_device_writes(struct ahd_softc *);
769 ahd_flush_device_writes(struct ahd_softc *ahd)
771 /* XXX Is this sufficient for all architectures??? */
772 ahd_inb(ahd, INTSTAT);
775 /**************************** Proc FS Support *********************************/
776 int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
779 /*********************** Transaction Access Wrappers **************************/
780 static __inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
781 static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
782 static __inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
783 static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
784 static __inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd);
785 static __inline uint32_t ahd_get_transaction_status(struct scb *);
786 static __inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd);
787 static __inline uint32_t ahd_get_scsi_status(struct scb *);
788 static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
789 static __inline u_long ahd_get_transfer_length(struct scb *);
790 static __inline int ahd_get_transfer_dir(struct scb *);
791 static __inline void ahd_set_residual(struct scb *, u_long);
792 static __inline void ahd_set_sense_residual(struct scb *scb, u_long resid);
793 static __inline u_long ahd_get_residual(struct scb *);
794 static __inline u_long ahd_get_sense_residual(struct scb *);
795 static __inline int ahd_perform_autosense(struct scb *);
796 static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *,
798 static __inline void ahd_notify_xfer_settings_change(struct ahd_softc *,
799 struct ahd_devinfo *);
800 static __inline void ahd_platform_scb_free(struct ahd_softc *ahd,
802 static __inline void ahd_freeze_scb(struct scb *scb);
805 void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
807 cmd->result &= ~(CAM_STATUS_MASK << 16);
808 cmd->result |= status << 16;
812 void ahd_set_transaction_status(struct scb *scb, uint32_t status)
814 ahd_cmd_set_transaction_status(scb->io_ctx,status);
818 void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
820 cmd->result &= ~0xFFFF;
821 cmd->result |= status;
825 void ahd_set_scsi_status(struct scb *scb, uint32_t status)
827 ahd_cmd_set_scsi_status(scb->io_ctx, status);
831 uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
833 return ((cmd->result >> 16) & CAM_STATUS_MASK);
837 uint32_t ahd_get_transaction_status(struct scb *scb)
839 return (ahd_cmd_get_transaction_status(scb->io_ctx));
843 uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
845 return (cmd->result & 0xFFFF);
849 uint32_t ahd_get_scsi_status(struct scb *scb)
851 return (ahd_cmd_get_scsi_status(scb->io_ctx));
855 void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
858 * Nothing to do for linux as the incoming transaction
859 * has no concept of tag/non tagged, etc.
864 u_long ahd_get_transfer_length(struct scb *scb)
866 return (scb->platform_data->xfer_len);
870 int ahd_get_transfer_dir(struct scb *scb)
872 return (scb->io_ctx->sc_data_direction);
876 void ahd_set_residual(struct scb *scb, u_long resid)
878 scb->io_ctx->resid = resid;
882 void ahd_set_sense_residual(struct scb *scb, u_long resid)
884 scb->platform_data->sense_resid = resid;
888 u_long ahd_get_residual(struct scb *scb)
890 return (scb->io_ctx->resid);
894 u_long ahd_get_sense_residual(struct scb *scb)
896 return (scb->platform_data->sense_resid);
900 int ahd_perform_autosense(struct scb *scb)
903 * We always perform autosense in Linux.
904 * On other platforms this is set on a
905 * per-transaction basis.
910 static __inline uint32_t
911 ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
913 return (sizeof(struct scsi_sense_data));
917 ahd_notify_xfer_settings_change(struct ahd_softc *ahd,
918 struct ahd_devinfo *devinfo)
920 /* Nothing to do here for linux */
924 ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
926 ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
929 int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
930 void ahd_platform_free(struct ahd_softc *ahd);
931 void ahd_platform_init(struct ahd_softc *ahd);
932 void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
933 void ahd_freeze_simq(struct ahd_softc *ahd);
934 void ahd_release_simq(struct ahd_softc *ahd);
937 ahd_freeze_scb(struct scb *scb)
939 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
940 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
941 scb->platform_data->dev->qfrozen++;
945 void ahd_platform_set_tags(struct ahd_softc *ahd,
946 struct ahd_devinfo *devinfo, ahd_queue_alg);
947 int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
948 char channel, int lun, u_int tag,
949 role_t role, uint32_t status);
951 ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
952 void ahd_platform_flushwork(struct ahd_softc *ahd);
953 int ahd_softc_comp(struct ahd_softc *, struct ahd_softc *);
954 void ahd_done(struct ahd_softc*, struct scb*);
955 void ahd_send_async(struct ahd_softc *, char channel,
956 u_int target, u_int lun, ac_code, void *);
957 void ahd_print_path(struct ahd_softc *, struct scb *);
960 #define AHD_PCI_CONFIG 1
962 #define AHD_PCI_CONFIG 0
964 #define bootverbose aic79xx_verbose
965 extern uint32_t aic79xx_verbose;
967 #endif /* _AIC79XX_LINUX_H_ */