patch-2.4.22 linux-2.4.22/drivers/scsi/aic79xx/aic79xx_osm.h

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diff -urN linux-2.4.21/drivers/scsi/aic79xx/aic79xx_osm.h linux-2.4.22/drivers/scsi/aic79xx/aic79xx_osm.h
@@ -1,1288 +0,0 @@
-/*
- * Adaptec AIC79xx device driver for Linux.
- *
- * Copyright (c) 2000-2001 Adaptec Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- *
- * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#108 $
- *
- */
-#ifndef _AIC79XX_LINUX_H_
-#define _AIC79XX_LINUX_H_
-
-#include <linux/types.h>
-#include <linux/blk.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/smp_lock.h>
-#include <linux/version.h>
-#ifndef AHD_MODVERSION_FILE
-#define __NO_VERSION__
-#endif
-#include <linux/module.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-
-#ifndef KERNEL_VERSION
-#define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z))
-#endif
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-#include <linux/interrupt.h> /* For tasklet support. */
-#include <linux/config.h>
-#include <linux/slab.h>
-#else
-#include <linux/malloc.h>
-#endif
-
-/* Core SCSI definitions */
-#define AIC_LIB_PREFIX ahd
-#include "scsi.h"
-#include "hosts.h"
-
-/* Name space conflict with BSD queue macros */
-#ifdef LIST_HEAD
-#undef LIST_HEAD
-#endif
-
-#include "cam.h"
-#include "queue.h"
-#include "scsi_message.h"
-#include "scsi_iu.h"
-#include "aiclib.h"
-
-/*********************************** Debugging ********************************/
-#ifdef CONFIG_AIC79XX_DEBUG_ENABLE
-#ifdef CONFIG_AIC79XX_DEBUG_MASK
-#define AHD_DEBUG 1
-#define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK
-#else
-/*
- * Compile in debugging code, but do not enable any printfs.
- */
-#define AHD_DEBUG 1
-#endif
-/* No debugging code. */
-#endif
-
-/********************************** Misc Macros *******************************/
-#define	roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
-#define	powerof2(x)	((((x)-1)&(x))==0)
-
-/************************* Forward Declarations *******************************/
-struct ahd_softc;
-typedef struct pci_dev *ahd_dev_softc_t;
-typedef Scsi_Cmnd      *ahd_io_ctx_t;
-
-/******************************* Byte Order ***********************************/
-#define ahd_htobe16(x)	cpu_to_be16(x)
-#define ahd_htobe32(x)	cpu_to_be32(x)
-#define ahd_htobe64(x)	cpu_to_be64(x)
-#define ahd_htole16(x)	cpu_to_le16(x)
-#define ahd_htole32(x)	cpu_to_le32(x)
-#define ahd_htole64(x)	cpu_to_le64(x)
-
-#define ahd_be16toh(x)	be16_to_cpu(x)
-#define ahd_be32toh(x)	be32_to_cpu(x)
-#define ahd_be64toh(x)	be64_to_cpu(x)
-#define ahd_le16toh(x)	le16_to_cpu(x)
-#define ahd_le32toh(x)	le32_to_cpu(x)
-#define ahd_le64toh(x)	le64_to_cpu(x)
-
-#ifndef LITTLE_ENDIAN
-#define LITTLE_ENDIAN 1234
-#endif
-
-#ifndef BIG_ENDIAN
-#define BIG_ENDIAN 4321
-#endif
-
-#ifndef BYTE_ORDER
-#if defined(__BIG_ENDIAN)
-#define BYTE_ORDER BIG_ENDIAN
-#endif
-#if defined(__LITTLE_ENDIAN)
-#define BYTE_ORDER LITTLE_ENDIAN
-#endif
-#endif /* BYTE_ORDER */
-
-/************************* Configuration Data *********************************/
-extern int aic79xx_allow_memio;
-extern int aic79xx_detect_complete;
-extern Scsi_Host_Template aic79xx_driver_template;
-
-/***************************** Bus Space/DMA **********************************/
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,2,17)
-typedef dma_addr_t bus_addr_t;
-#else
-typedef uint32_t bus_addr_t;
-#endif
-typedef uint32_t bus_size_t;
-
-typedef enum {
-	BUS_SPACE_MEMIO,
-	BUS_SPACE_PIO
-} bus_space_tag_t;
-
-typedef union {
-	u_long		  ioport;
-	volatile uint8_t *maddr;
-} bus_space_handle_t;
-
-typedef struct bus_dma_segment
-{
-	bus_addr_t	ds_addr;
-	bus_size_t	ds_len;
-} bus_dma_segment_t;
-
-struct ahd_linux_dma_tag
-{
-	bus_size_t	alignment;
-	bus_size_t	boundary;
-	bus_size_t	maxsize;
-};
-typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
-
-struct ahd_linux_dmamap
-{
-	bus_addr_t	bus_addr;
-};
-typedef struct ahd_linux_dmamap* bus_dmamap_t;
-
-typedef int bus_dma_filter_t(void*, bus_addr_t);
-typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
-
-#define BUS_DMA_WAITOK		0x0
-#define BUS_DMA_NOWAIT		0x1
-#define BUS_DMA_ALLOCNOW	0x2
-#define BUS_DMA_LOAD_SEGS	0x4	/*
-					 * Argument is an S/G list not
-					 * a single buffer.
-					 */
-
-#define BUS_SPACE_MAXADDR	0xFFFFFFFF
-#define BUS_SPACE_MAXADDR_32BIT	0xFFFFFFFF
-#define BUS_SPACE_MAXSIZE_32BIT	0xFFFFFFFF
-
-int	ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t /*parent*/,
-			   bus_size_t /*alignment*/, bus_size_t /*boundary*/,
-			   bus_addr_t /*lowaddr*/, bus_addr_t /*highaddr*/,
-			   bus_dma_filter_t*/*filter*/, void */*filterarg*/,
-			   bus_size_t /*maxsize*/, int /*nsegments*/,
-			   bus_size_t /*maxsegsz*/, int /*flags*/,
-			   bus_dma_tag_t */*dma_tagp*/);
-
-void	ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/);
-
-int	ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
-			 void** /*vaddr*/, int /*flags*/,
-			 bus_dmamap_t* /*mapp*/);
-
-void	ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t /*dmat*/,
-			void* /*vaddr*/, bus_dmamap_t /*map*/);
-
-void	ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/,
-			   bus_dmamap_t /*map*/);
-
-int	ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t /*dmat*/,
-			bus_dmamap_t /*map*/, void * /*buf*/,
-			bus_size_t /*buflen*/, bus_dmamap_callback_t *,
-			void */*callback_arg*/, int /*flags*/);
-
-int	ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
-
-/*
- * Operations performed by ahd_dmamap_sync().
- */
-#define BUS_DMASYNC_PREREAD	0x01	/* pre-read synchronization */
-#define BUS_DMASYNC_POSTREAD	0x02	/* post-read synchronization */
-#define BUS_DMASYNC_PREWRITE	0x04	/* pre-write synchronization */
-#define BUS_DMASYNC_POSTWRITE	0x08	/* post-write synchronization */
-
-/*
- * XXX
- * ahd_dmamap_sync is only used on buffers allocated with
- * the pci_alloc_consistent() API.  Although I'm not sure how
- * this works on architectures with a write buffer, Linux does
- * not have an API to sync "coherent" memory.  Perhaps we need
- * to do an mb()?
- */
-#define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
-
-/************************** Timer DataStructures ******************************/
-typedef struct timer_list ahd_timer_t;
-
-/********************************** Includes **********************************/
-#if CONFIG_AIC79XX_REG_PRETTY_PRINT
-#define AIC_DEBUG_REGISTERS 1
-#else
-#define AIC_DEBUG_REGISTERS 0
-#endif
-#include "aic79xx.h"
-
-/***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer
-typedef void ahd_linux_callback_t (u_long);  
-static __inline void ahd_timer_reset(ahd_timer_t *timer, u_int usec,
-				     ahd_callback_t *func, void *arg);
-static __inline void ahd_scb_timer_reset(struct scb *scb, u_int usec);
-
-static __inline void
-ahd_timer_reset(ahd_timer_t *timer, u_int usec, ahd_callback_t *func, void *arg)
-{
-	struct ahd_softc *ahd;
-
-	ahd = (struct ahd_softc *)arg;
-	del_timer(timer);
-	timer->data = (u_long)arg;
-	timer->expires = jiffies + (usec * HZ)/1000000;
-	timer->function = (ahd_linux_callback_t*)func;
-	add_timer(timer);
-}
-
-static __inline void
-ahd_scb_timer_reset(struct scb *scb, u_int usec)
-{
-	mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000);
-}
-
-/***************************** SMP support ************************************/
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,17)
-#include <linux/spinlock.h>
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
-#include <linux/smp.h>
-#endif
-
-#define AIC79XX_DRIVER_VERSION "1.3.0"
-
-/**************************** Front End Queues ********************************/
-/*
- * Data structure used to cast the Linux struct scsi_cmnd to something
- * that allows us to use the queue macros.  The linux structure has
- * plenty of space to hold the links fields as required by the queue
- * macros, but the queue macors require them to have the correct type.
- */
-struct ahd_cmd_internal {
-	/* Area owned by the Linux scsi layer. */
-	uint8_t	private[offsetof(struct scsi_cmnd, SCp.Status)];
-	union {
-		STAILQ_ENTRY(ahd_cmd)	ste;
-		LIST_ENTRY(ahd_cmd)	le;
-		TAILQ_ENTRY(ahd_cmd)	tqe;
-	} links;
-	uint32_t			end;
-};
-
-struct ahd_cmd {
-	union {
-		struct ahd_cmd_internal	icmd;
-		struct scsi_cmnd	scsi_cmd;
-	} un;
-};
-
-#define acmd_icmd(cmd) ((cmd)->un.icmd)
-#define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd)
-#define acmd_links un.icmd.links
-
-/*************************** Device Data Structures ***************************/
-/*
- * A per probed device structure used to deal with some error recovery
- * scenarios that the Linux mid-layer code just doesn't know how to
- * handle.  The structure allocated for a device only becomes persistant
- * after a successfully completed inquiry command to the target when
- * that inquiry data indicates a lun is present.
- */
-TAILQ_HEAD(ahd_busyq, ahd_cmd);
-typedef enum {
-	AHD_DEV_UNCONFIGURED	 = 0x01,
-	AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
-	AHD_DEV_TIMER_ACTIVE	 = 0x04, /* Our timer is active */
-	AHD_DEV_ON_RUN_LIST	 = 0x08, /* Queued to be run later */
-	AHD_DEV_Q_BASIC		 = 0x10, /* Allow basic device queuing */
-	AHD_DEV_Q_TAGGED	 = 0x20, /* Allow full SCSI2 command queueing */
-	AHD_DEV_PERIODIC_OTAG	 = 0x40, /* Send OTAG to prevent starvation */
-	AHD_DEV_SLAVE_CONFIGURED = 0x80	 /* slave_configure() has been called */
-} ahd_linux_dev_flags;
-
-struct ahd_linux_target;
-struct ahd_linux_device {
-	TAILQ_ENTRY(ahd_linux_device) links;
-	struct			ahd_busyq busyq;
-
-	/*
-	 * The number of transactions currently
-	 * queued to the device.
-	 */
-	int			active;
-
-	/*
-	 * The currently allowed number of 
-	 * transactions that can be queued to
-	 * the device.  Must be signed for
-	 * conversion from tagged to untagged
-	 * mode where the device may have more
-	 * than one outstanding active transaction.
-	 */
-	int			openings;
-
-	/*
-	 * A positive count indicates that this
-	 * device's queue is halted.
-	 */
-	u_int			qfrozen;
-	
-	/*
-	 * Cumulative command counter.
-	 */
-	u_long			commands_issued;
-
-	/*
-	 * The number of tagged transactions when
-	 * running at our current opening level
-	 * that have been successfully received by
-	 * this device since the last QUEUE FULL.
-	 */
-	u_int			tag_success_count;
-#define AHD_TAG_SUCCESS_INTERVAL 50
-
-	ahd_linux_dev_flags	flags;
-
-	/*
-	 * Per device timer.
-	 */
-	struct timer_list	timer;
-
-	/*
-	 * The high limit for the tags variable.
-	 */
-	u_int			maxtags;
-
-	/*
-	 * The computed number of tags outstanding
-	 * at the time of the last QUEUE FULL event.
-	 */
-	u_int			tags_on_last_queuefull;
-
-	/*
-	 * How many times we have seen a queue full
-	 * with the same number of tags.  This is used
-	 * to stop our adaptive queue depth algorithm
-	 * on devices with a fixed number of tags.
-	 */
-	u_int			last_queuefull_same_count;
-#define AHD_LOCK_TAGS_COUNT 50
-
-	/*
-	 * How many transactions have been queued
-	 * without the device going idle.  We use
-	 * this statistic to determine when to issue
-	 * an ordered tag to prevent transaction
-	 * starvation.  This statistic is only updated
-	 * if the AHD_DEV_PERIODIC_OTAG flag is set
-	 * on this device.
-	 */
-	u_int			commands_since_idle_or_otag;
-#define AHD_OTAG_THRESH	500
-
-	int			lun;
-	Scsi_Device	       *scsi_device;
-	struct			ahd_linux_target *target;
-};
-
-typedef enum {
-	AHD_DV_REQUIRED		 = 0x01,
-	AHD_INQ_VALID		 = 0x02,
-	AHD_BASIC_DV		 = 0x04,
-	AHD_ENHANCED_DV		 = 0x08
-} ahd_linux_targ_flags;
-
-/* DV States */
-typedef enum {
-	AHD_DV_STATE_EXIT = 0,
-	AHD_DV_STATE_INQ_SHORT_ASYNC,
-	AHD_DV_STATE_INQ_ASYNC,
-	AHD_DV_STATE_INQ_ASYNC_VERIFY,
-	AHD_DV_STATE_TUR,
-	AHD_DV_STATE_REBD,
-	AHD_DV_STATE_INQ_VERIFY,
-	AHD_DV_STATE_WEB,
-	AHD_DV_STATE_REB,
-	AHD_DV_STATE_SU,
-	AHD_DV_STATE_BUSY
-} ahd_dv_state;
-
-struct ahd_linux_target {
-	struct ahd_linux_device	 *devices[AHD_NUM_LUNS];
-	int			  channel;
-	int			  target;
-	int			  refcount;
-	struct ahd_transinfo	  last_tinfo;
-	struct ahd_softc	 *ahd;
-	ahd_linux_targ_flags	  flags;
-	struct scsi_inquiry_data *inq_data;
-	/*
-	 * The next "fallback" period to use for narrow/wide transfers.
-	 */
-	uint8_t			  dv_next_narrow_period;
-	uint8_t			  dv_next_wide_period;
-	uint8_t			  dv_max_width;
-	uint8_t			  dv_max_ppr_options;
-	uint8_t			  dv_last_ppr_options;
-	u_int			  dv_echo_size;
-	ahd_dv_state		  dv_state;
-	u_int			  dv_state_retry;
-	uint8_t			 *dv_buffer;
-	uint8_t			 *dv_buffer1;
-
-	/*
-	 * Cumulative counter of errors.
-	 */
-	u_long			errors_detected;
-	u_long			cmds_since_error;
-};
-
-/********************* Definitions Required by the Core ***********************/
-/*
- * Number of SG segments we require.  So long as the S/G segments for
- * a particular transaction are allocated in a physically contiguous
- * manner and are allocated below 4GB, the number of S/G segments is
- * unrestricted.
- */
-#define        AHD_NSEG 128
-
-/*
- * Per-SCB OSM storage.
- */
-typedef enum {
-	AHD_UP_EH_SEMAPHORE = 0x1
-} ahd_linux_scb_flags;
-
-struct scb_platform_data {
-	struct ahd_linux_device	*dev;
-	bus_addr_t		 buf_busaddr;
-	uint32_t		 xfer_len;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
-	uint32_t		 resid;		/* Transfer residual */
-#endif
-	uint32_t		 sense_resid;	/* Auto-Sense residual */
-	ahd_linux_scb_flags	 flags;
-};
-
-/*
- * Define a structure used for each host adapter.  All members are
- * aligned on a boundary >= the size of the member to honor the
- * alignment restrictions of the various platforms supported by
- * this driver.
- */
-typedef enum {
-	AHD_DV_WAIT_SIMQ_EMPTY	 = 0x01,
-	AHD_DV_WAIT_SIMQ_RELEASE = 0x02,
-	AHD_DV_ACTIVE		 = 0x04,
-	AHD_DV_SHUTDOWN		 = 0x08,
-	AHD_RUN_CMPLT_Q_TIMER	 = 0x10
-} ahd_linux_softc_flags;
-
-TAILQ_HEAD(ahd_completeq, ahd_cmd);
-
-struct ahd_platform_data {
-	/*
-	 * Fields accessed from interrupt context.
-	 */
-	struct ahd_linux_target *targets[AHD_NUM_TARGETS]; 
-	TAILQ_HEAD(, ahd_linux_device) device_runq;
-	struct ahd_completeq	 completeq;
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
-	spinlock_t		 spin_lock;
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-	struct tasklet_struct	 runq_tasklet;
-#endif
-	u_int			 qfrozen;
-	pid_t			 dv_pid;
-	struct timer_list	 completeq_timer;
-	struct timer_list	 reset_timer;
-	struct timer_list	 stats_timer;
-	struct semaphore	 eh_sem;
-	struct semaphore	 dv_sem;
-	struct semaphore	 dv_cmd_sem;	/* XXX This needs to be in
-						 * the target struct
-						 */
-	struct scsi_device	*dv_scsi_dev;
-	struct Scsi_Host        *host;		/* pointer to scsi host */
-#define AHD_LINUX_NOIRQ	((uint32_t)~0)
-	uint32_t		 irq;		/* IRQ for this adapter */
-	uint32_t		 bios_address;
-	uint32_t		 mem_busaddr;	/* Mem Base Addr */
-	bus_addr_t		 hw_dma_mask;
-	ahd_linux_softc_flags	 flags;
-};
-
-/************************** OS Utility Wrappers *******************************/
-#define printf printk
-#define M_NOWAIT GFP_ATOMIC
-#define M_WAITOK 0
-#define malloc(size, type, flags) kmalloc(size, flags)
-#define free(ptr, type) kfree(ptr)
-
-static __inline void ahd_delay(long);
-static __inline void
-ahd_delay(long usec)
-{
-	/*
-	 * udelay on Linux can have problems for
-	 * multi-millisecond waits.  Wait at most
-	 * 1024us per call.
-	 */
-	while (usec > 0) {
-		udelay(usec % 1024);
-		usec -= 1024;
-	}
-}
-
-
-/***************************** Low Level I/O **********************************/
-#if defined(__powerpc__) || defined(__i386__) || defined(__ia64__)
-#define MMAPIO
-#endif
-
-static __inline uint8_t ahd_inb(struct ahd_softc * ahd, long port);
-static __inline uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
-static __inline void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
-static __inline void ahd_outw_atomic(struct ahd_softc * ahd,
-				     long port, uint16_t val);
-static __inline void ahd_outsb(struct ahd_softc * ahd, long port,
-			       uint8_t *, int count);
-static __inline void ahd_insb(struct ahd_softc * ahd, long port,
-			       uint8_t *, int count);
-
-static __inline uint8_t
-ahd_inb(struct ahd_softc * ahd, long port)
-{
-	uint8_t x;
-#ifdef MMAPIO
-
-	if (ahd->tags[0] == BUS_SPACE_MEMIO) {
-		x = readb(ahd->bshs[0].maddr + port);
-	} else {
-		x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
-	}
-#else
-	x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
-#endif
-	mb();
-	return (x);
-}
-
-static __inline uint16_t
-ahd_inw_atomic(struct ahd_softc * ahd, long port)
-{
-	uint8_t x;
-#ifdef MMAPIO
-
-	if (ahd->tags[0] == BUS_SPACE_MEMIO) {
-		x = readw(ahd->bshs[0].maddr + port);
-	} else {
-		x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
-	}
-#else
-	x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
-#endif
-	mb();
-	return (x);
-}
-
-static __inline void
-ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
-{
-#ifdef MMAPIO
-	if (ahd->tags[0] == BUS_SPACE_MEMIO) {
-		writeb(val, ahd->bshs[0].maddr + port);
-	} else {
-		outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
-	}
-#else
-	outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
-#endif
-	mb();
-}
-
-static __inline void
-ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
-{
-#ifdef MMAPIO
-	if (ahd->tags[0] == BUS_SPACE_MEMIO) {
-		writew(val, ahd->bshs[0].maddr + port);
-	} else {
-		outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
-	}
-#else
-	outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
-#endif
-	mb();
-}
-
-static __inline void
-ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
-{
-	int i;
-
-	/*
-	 * There is probably a more efficient way to do this on Linux
-	 * but we don't use this for anything speed critical and this
-	 * should work.
-	 */
-	for (i = 0; i < count; i++)
-		ahd_outb(ahd, port, *array++);
-}
-
-static __inline void
-ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
-{
-	int i;
-
-	/*
-	 * There is probably a more efficient way to do this on Linux
-	 * but we don't use this for anything speed critical and this
-	 * should work.
-	 */
-	for (i = 0; i < count; i++)
-		*array++ = ahd_inb(ahd, port);
-}
-
-/**************************** Initialization **********************************/
-int		ahd_linux_register_host(struct ahd_softc *,
-					Scsi_Host_Template *);
-
-uint64_t	ahd_linux_get_memsize(void);
-
-/*************************** Pretty Printing **********************************/
-struct info_str {
-	char *buffer;
-	int length;
-	off_t offset;
-	int pos;
-};
-
-void	ahd_format_transinfo(struct info_str *info,
-			     struct ahd_transinfo *tinfo);
-
-/******************************** Locking *************************************/
-/* Lock protecting internal data structures */
-static __inline void ahd_lockinit(struct ahd_softc *);
-static __inline void ahd_lock(struct ahd_softc *, unsigned long *flags);
-static __inline void ahd_unlock(struct ahd_softc *, unsigned long *flags);
-
-/* Lock acquisition and release of the above lock in midlayer entry points. */
-static __inline void ahd_midlayer_entrypoint_lock(struct ahd_softc *,
-						  unsigned long *flags);
-static __inline void ahd_midlayer_entrypoint_unlock(struct ahd_softc *,
-						    unsigned long *flags);
-
-/* Lock held during command compeletion to the upper layer */
-static __inline void ahd_done_lockinit(struct ahd_softc *);
-static __inline void ahd_done_lock(struct ahd_softc *, unsigned long *flags);
-static __inline void ahd_done_unlock(struct ahd_softc *, unsigned long *flags);
-
-/* Lock held during ahd_list manipulation and ahd softc frees */
-extern spinlock_t ahd_list_spinlock;
-static __inline void ahd_list_lockinit(void);
-static __inline void ahd_list_lock(unsigned long *flags);
-static __inline void ahd_list_unlock(unsigned long *flags);
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
-static __inline void
-ahd_lockinit(struct ahd_softc *ahd)
-{
-	spin_lock_init(&ahd->platform_data->spin_lock);
-}
-
-static __inline void
-ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	*flags = 0;
-	spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags);
-}
-
-static __inline void
-ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
-}
-
-static __inline void
-ahd_midlayer_entrypoint_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	/*
-	 * In 2.5.X, the midlayer takes our lock just before
-	 * calling us, so avoid locking again.
-	 */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	ahd_lock(ahd, flags);
-#endif
-}
-
-static __inline void
-ahd_midlayer_entrypoint_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	/*
-	 * In 2.5.X, the midlayer takes our lock just before
-	 * calling us and unlocks when we return, so let it do the unlock.
-	 */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	ahd_unlock(ahd, flags);
-#endif
-}
-
-static __inline void
-ahd_done_lockinit(struct ahd_softc *ahd)
-{
-	/*
-	 * In 2.5.X, our own lock is held during completions.
-	 * In previous versions, the io_request_lock is used.
-	 * In either case, we can't initialize this lock again.
-	 */
-}
-
-static __inline void
-ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	*flags = 0;
-	spin_lock_irqsave(&io_request_lock, *flags);
-#endif
-}
-
-static __inline void
-ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	spin_unlock_irqrestore(&io_request_lock, *flags);
-#endif
-}
-
-static __inline void
-ahd_list_lockinit()
-{
-	spin_lock_init(&ahd_list_spinlock);
-}
-
-static __inline void
-ahd_list_lock(unsigned long *flags)
-{
-	*flags = 0;
-	spin_lock_irqsave(&ahd_list_spinlock, *flags);
-}
-
-static __inline void
-ahd_list_unlock(unsigned long *flags)
-{
-	spin_unlock_irqrestore(&ahd_list_spinlock, *flags);
-}
-
-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0) */
-
-ahd_lockinit(struct ahd_softc *ahd)
-{
-}
-
-static __inline void
-ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	*flags = 0;
-	save_flags(*flags);
-	cli();
-}
-
-static __inline void
-ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	restore_flags(*flags);
-}
-
-ahd_done_lockinit(struct ahd_softc *ahd)
-{
-}
-
-static __inline void
-ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-	/*
-	 * The done lock is always held while
-	 * the ahd lock is held so blocking
-	 * interrupts again would have no effect.
-	 */
-}
-
-static __inline void
-ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-}
-
-static __inline void
-ahd_list_lockinit()
-{
-}
-
-static __inline void
-ahd_list_lock(unsigned long *flags)
-{
-	*flags = 0;
-	save_flags(*flags);
-	cli();
-}
-
-static __inline void
-ahd_list_unlock(unsigned long *flags)
-{
-	restore_flags(*flags);
-}
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0) */
-
-/******************************* PCI Definitions ******************************/
-/*
- * PCIM_xxx: mask to locate subfield in register
- * PCIR_xxx: config register offset
- * PCIC_xxx: device class
- * PCIS_xxx: device subclass
- * PCIP_xxx: device programming interface
- * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
- * PCID_xxx: device ID
- */
-#define PCIR_DEVVENDOR		0x00
-#define PCIR_VENDOR		0x00
-#define PCIR_DEVICE		0x02
-#define PCIR_COMMAND		0x04
-#define PCIM_CMD_PORTEN		0x0001
-#define PCIM_CMD_MEMEN		0x0002
-#define PCIM_CMD_BUSMASTEREN	0x0004
-#define PCIM_CMD_MWRICEN	0x0010
-#define PCIM_CMD_PERRESPEN	0x0040
-#define	PCIM_CMD_SERRESPEN	0x0100
-#define PCIR_STATUS		0x06
-#define PCIR_REVID		0x08
-#define PCIR_PROGIF		0x09
-#define PCIR_SUBCLASS		0x0a
-#define PCIR_CLASS		0x0b
-#define PCIR_CACHELNSZ		0x0c
-#define PCIR_LATTIMER		0x0d
-#define PCIR_HEADERTYPE		0x0e
-#define PCIM_MFDEV		0x80
-#define PCIR_BIST		0x0f
-#define PCIR_CAP_PTR		0x34
-
-/* config registers for header type 0 devices */
-#define PCIR_MAPS	0x10
-#define PCIR_SUBVEND_0	0x2c
-#define PCIR_SUBDEV_0	0x2e
-
-/****************************** PCI-X definitions *****************************/
-#define PCIXR_COMMAND	0x96
-#define PCIXR_DEVADDR	0x98
-#define PCIXM_DEVADDR_FNUM	0x0003	/* Function Number */
-#define PCIXM_DEVADDR_DNUM	0x00F8	/* Device Number */
-#define PCIXM_DEVADDR_BNUM	0xFF00	/* Bus Number */
-#define PCIXR_STATUS	0x9A
-#define PCIXM_STATUS_64BIT	0x0001	/* Active 64bit connection to device. */
-#define PCIXM_STATUS_133CAP	0x0002	/* Device is 133MHz capable */
-#define PCIXM_STATUS_SCDISC	0x0004	/* Split Completion Discarded */
-#define PCIXM_STATUS_UNEXPSC	0x0008	/* Unexpected Split Completion */
-#define PCIXM_STATUS_CMPLEXDEV	0x0010	/* Device Complexity (set == bridge) */
-#define PCIXM_STATUS_MAXMRDBC	0x0060	/* Maximum Burst Read Count */
-#define PCIXM_STATUS_MAXSPLITS	0x0380	/* Maximum Split Transactions */
-#define PCIXM_STATUS_MAXCRDS	0x1C00	/* Maximum Cumulative Read Size */
-#define PCIXM_STATUS_RCVDSCEM	0x2000	/* Received a Split Comp w/Error msg */
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-extern struct pci_driver aic79xx_pci_driver;
-#endif
-
-typedef enum
-{
-	AHD_POWER_STATE_D0,
-	AHD_POWER_STATE_D1,
-	AHD_POWER_STATE_D2,
-	AHD_POWER_STATE_D3
-} ahd_power_state;
-
-void ahd_power_state_change(struct ahd_softc *ahd,
-			    ahd_power_state new_state);
-
-/******************************* PCI Routines *********************************/
-/*
- * We need to use the bios32.h routines if we are kernel version 2.1.92 or less.
- */
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,1,92)
-#if defined(__sparc_v9__) || defined(__powerpc__)
-#error "PPC and Sparc platforms are only support under 2.1.92 and above"
-#endif
-#include <linux/bios32.h>
-#endif
-
-int			 ahd_linux_pci_probe(Scsi_Host_Template *);
-int			 ahd_pci_map_registers(struct ahd_softc *ahd);
-int			 ahd_pci_map_int(struct ahd_softc *ahd);
-
-static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
-					     int reg, int width);
-
-static __inline uint32_t
-ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
-{
-	switch (width) {
-	case 1:
-	{
-		uint8_t retval;
-
-		pci_read_config_byte(pci, reg, &retval);
-		return (retval);
-	}
-	case 2:
-	{
-		uint16_t retval;
-		pci_read_config_word(pci, reg, &retval);
-		return (retval);
-	}
-	case 4:
-	{
-		uint32_t retval;
-		pci_read_config_dword(pci, reg, &retval);
-		return (retval);
-	}
-	default:
-		panic("ahd_pci_read_config: Read size too big");
-		/* NOTREACHED */
-		return (0);
-	}
-}
-
-static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
-					  int reg, uint32_t value,
-					  int width);
-
-static __inline void
-ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
-{
-	switch (width) {
-	case 1:
-		pci_write_config_byte(pci, reg, value);
-		break;
-	case 2:
-		pci_write_config_word(pci, reg, value);
-		break;
-	case 4:
-		pci_write_config_dword(pci, reg, value);
-		break;
-	default:
-		panic("ahd_pci_write_config: Write size too big");
-		/* NOTREACHED */
-	}
-}
-
-static __inline int ahd_get_pci_function(ahd_dev_softc_t);
-static __inline int
-ahd_get_pci_function(ahd_dev_softc_t pci)
-{
-	return (PCI_FUNC(pci->devfn));
-}
-
-static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
-static __inline int
-ahd_get_pci_slot(ahd_dev_softc_t pci)
-{
-	return (PCI_SLOT(pci->devfn));
-}
-
-static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
-static __inline int
-ahd_get_pci_bus(ahd_dev_softc_t pci)
-{
-	return (pci->bus->number);
-}
-
-static __inline void ahd_flush_device_writes(struct ahd_softc *);
-static __inline void
-ahd_flush_device_writes(struct ahd_softc *ahd)
-{
-	/* XXX Is this sufficient for all architectures??? */
-	ahd_inb(ahd, INTSTAT);
-}
-
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0)
-#define pci_map_sg(pdev, sg_list, nseg, direction) (nseg)
-#define pci_unmap_sg(pdev, sg_list, nseg, direction)
-#define sg_dma_address(sg) (VIRT_TO_BUS((sg)->address))
-#define sg_dma_len(sg) ((sg)->length)
-#define pci_map_single(pdev, buffer, bufflen, direction) \
-	(VIRT_TO_BUS(buffer))
-#define pci_unmap_single(pdev, buffer, buflen, direction)
-#endif
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,3)
-#define ahd_pci_set_dma_mask pci_set_dma_mask
-#else
-/*
- * Always "return" 0 for success.
- */
-#define ahd_pci_set_dma_mask(dev_softc, mask)	\
-	(((dev_softc)->dma_mask = mask) && 0)
-#endif
-/**************************** Proc FS Support *********************************/
-int	ahd_linux_proc_info(char *, char **, off_t, int, int, int);
-
-/*************************** Domain Validation ********************************/
-#define AHD_DV_CMD(cmd) ((cmd)->scsi_done == ahd_linux_dv_complete)
-#define AHD_DV_SIMQ_FROZEN(ahd)					\
-	((((ahd)->platform_data->flags & AHD_DV_ACTIVE) != 0)	\
-	 && (ahd)->platform_data->qfrozen == 1)
-
-/*********************** Transaction Access Wrappers **************************/
-static __inline void ahd_cmd_set_transaction_status(Scsi_Cmnd *, uint32_t);
-static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
-static __inline void ahd_cmd_set_scsi_status(Scsi_Cmnd *, uint32_t);
-static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
-static __inline uint32_t ahd_cmd_get_transaction_status(Scsi_Cmnd *cmd);
-static __inline uint32_t ahd_get_transaction_status(struct scb *);
-static __inline uint32_t ahd_cmd_get_scsi_status(Scsi_Cmnd *cmd);
-static __inline uint32_t ahd_get_scsi_status(struct scb *);
-static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
-static __inline u_long ahd_get_transfer_length(struct scb *);
-static __inline int ahd_get_transfer_dir(struct scb *);
-static __inline void ahd_set_residual(struct scb *, u_long);
-static __inline void ahd_set_sense_residual(struct scb *scb, u_long resid);
-static __inline u_long ahd_get_residual(struct scb *);
-static __inline u_long ahd_get_sense_residual(struct scb *);
-static __inline int ahd_perform_autosense(struct scb *);
-static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *,
-					       struct scb *);
-static __inline void ahd_notify_xfer_settings_change(struct ahd_softc *,
-						     struct ahd_devinfo *);
-static __inline void ahd_platform_scb_free(struct ahd_softc *ahd,
-					   struct scb *scb);
-static __inline void ahd_freeze_scb(struct scb *scb);
-
-static __inline
-void ahd_cmd_set_transaction_status(Scsi_Cmnd *cmd, uint32_t status)
-{
-	cmd->result &= ~(CAM_STATUS_MASK << 16);
-	cmd->result |= status << 16;
-}
-
-static __inline
-void ahd_set_transaction_status(struct scb *scb, uint32_t status)
-{
-	ahd_cmd_set_transaction_status(scb->io_ctx,status);
-}
-
-static __inline
-void ahd_cmd_set_scsi_status(Scsi_Cmnd *cmd, uint32_t status)
-{
-	cmd->result &= ~0xFFFF;
-	cmd->result |= status;
-}
-
-static __inline
-void ahd_set_scsi_status(struct scb *scb, uint32_t status)
-{
-	ahd_cmd_set_scsi_status(scb->io_ctx, status);
-}
-
-static __inline
-uint32_t ahd_cmd_get_transaction_status(Scsi_Cmnd *cmd)
-{
-	return ((cmd->result >> 16) & CAM_STATUS_MASK);
-}
-
-static __inline
-uint32_t ahd_get_transaction_status(struct scb *scb)
-{
-	return (ahd_cmd_get_transaction_status(scb->io_ctx));
-}
-
-static __inline
-uint32_t ahd_cmd_get_scsi_status(Scsi_Cmnd *cmd)
-{
-	return (cmd->result & 0xFFFF);
-}
-
-static __inline
-uint32_t ahd_get_scsi_status(struct scb *scb)
-{
-	return (ahd_cmd_get_scsi_status(scb->io_ctx));
-}
-
-static __inline
-void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
-{
-	/*
-	 * Nothing to do for linux as the incoming transaction
-	 * has no concept of tag/non tagged, etc.
-	 */
-}
-
-static __inline
-u_long ahd_get_transfer_length(struct scb *scb)
-{
-	return (scb->platform_data->xfer_len);
-}
-
-static __inline
-int ahd_get_transfer_dir(struct scb *scb)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,40)
-	return (scb->io_ctx->sc_data_direction);
-#else
-	if (scb->io_ctx->bufflen == 0)
-		return (CAM_DIR_NONE);
-
-	switch(scb->io_ctx->cmnd[0]) {
-	case 0x08:  /* READ(6)  */
-	case 0x28:  /* READ(10) */
-	case 0xA8:  /* READ(12) */
-		return (CAM_DIR_IN);
-        case 0x0A:  /* WRITE(6)  */
-        case 0x2A:  /* WRITE(10) */
-        case 0xAA:  /* WRITE(12) */
-		return (CAM_DIR_OUT);
-        default:
-		return (CAM_DIR_NONE);
-        }
-#endif
-}
-
-static __inline
-void ahd_set_residual(struct scb *scb, u_long resid)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
-	scb->io_ctx->resid = resid;
-#else
-	scb->platform_data->resid = resid;
-#endif
-}
-
-static __inline
-void ahd_set_sense_residual(struct scb *scb, u_long resid)
-{
-	scb->platform_data->sense_resid = resid;
-}
-
-static __inline
-u_long ahd_get_residual(struct scb *scb)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
-	return (scb->io_ctx->resid);
-#else
-	return (scb->platform_data->resid);
-#endif
-}
-
-static __inline
-u_long ahd_get_sense_residual(struct scb *scb)
-{
-	return (scb->platform_data->sense_resid);
-}
-
-static __inline
-int ahd_perform_autosense(struct scb *scb)
-{
-	/*
-	 * We always perform autosense in Linux.
-	 * On other platforms this is set on a
-	 * per-transaction basis.
-	 */
-	return (1);
-}
-
-static __inline uint32_t
-ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
-{
-	return (sizeof(struct scsi_sense_data));
-}
-
-static __inline void
-ahd_notify_xfer_settings_change(struct ahd_softc *ahd,
-				struct ahd_devinfo *devinfo)
-{
-	/* Nothing to do here for linux */
-}
-
-static __inline void
-ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
-{
-	ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
-}
-
-int	ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
-void	ahd_platform_free(struct ahd_softc *ahd);
-void	ahd_platform_init(struct ahd_softc *ahd);
-void	ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
-void	ahd_freeze_simq(struct ahd_softc *ahd);
-void	ahd_release_simq(struct ahd_softc *ahd);
-
-static __inline void
-ahd_freeze_scb(struct scb *scb)
-{
-	if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
-                scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
-                scb->platform_data->dev->qfrozen++;
-        }
-}
-
-void	ahd_platform_set_tags(struct ahd_softc *ahd,
-			      struct ahd_devinfo *devinfo, ahd_queue_alg);
-int	ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
-				char channel, int lun, u_int tag,
-				role_t role, uint32_t status);
-void	ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
-void	ahd_platform_flushwork(struct ahd_softc *ahd);
-int	ahd_softc_comp(struct ahd_softc *, struct ahd_softc *);
-void	ahd_done(struct ahd_softc*, struct scb*);
-void	ahd_send_async(struct ahd_softc *, char channel,
-		       u_int target, u_int lun, ac_code, void *);
-void	ahd_print_path(struct ahd_softc *, struct scb *);
-void	ahd_platform_dump_card_state(struct ahd_softc *ahd);
-
-#ifdef CONFIG_PCI
-#define AHD_PCI_CONFIG 1
-#else
-#define AHD_PCI_CONFIG 0
-#endif
-#define bootverbose aic79xx_verbose
-extern int aic79xx_verbose;
-#endif /* _AIC79XX_LINUX_H_ */

FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)