patch-2.4.22 linux-2.4.22/drivers/scsi/aic79xx/aic79xx_osm.h
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- Lines: 1289
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/drivers/scsi/aic79xx/aic79xx_osm.h
- Orig date:
2003-06-13 07:51:36.000000000 -0700
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)