mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 00:42:16 +00:00
3a57c4a5aa
- remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
839 lines
23 KiB
C
839 lines
23 KiB
C
/*
|
|
* Adaptec AIC7xxx device driver for Linux.
|
|
*
|
|
* Copyright (c) 1994 John Aycock
|
|
* The University of Calgary Department of Computer Science.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* Copyright (c) 2000-2003 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/aic7xxx_osm.h#151 $
|
|
*
|
|
*/
|
|
#ifndef _AIC7XXX_LINUX_H_
|
|
#define _AIC7XXX_LINUX_H_
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/io.h>
|
|
|
|
#include <scsi/scsi.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <scsi/scsi_eh.h>
|
|
#include <scsi/scsi_device.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/scsi_tcq.h>
|
|
#include <scsi/scsi_transport.h>
|
|
#include <scsi/scsi_transport_spi.h>
|
|
|
|
/* Core SCSI definitions */
|
|
#define AIC_LIB_PREFIX ahc
|
|
|
|
/* 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 "aiclib.h"
|
|
|
|
/*********************************** Debugging ********************************/
|
|
#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
|
|
#ifdef CONFIG_AIC7XXX_DEBUG_MASK
|
|
#define AHC_DEBUG 1
|
|
#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
|
|
#else
|
|
/*
|
|
* Compile in debugging code, but do not enable any printfs.
|
|
*/
|
|
#define AHC_DEBUG 1
|
|
#endif
|
|
/* No debugging code. */
|
|
#endif
|
|
|
|
/************************* Forward Declarations *******************************/
|
|
struct ahc_softc;
|
|
typedef struct pci_dev *ahc_dev_softc_t;
|
|
typedef struct scsi_cmnd *ahc_io_ctx_t;
|
|
|
|
/******************************* Byte Order ***********************************/
|
|
#define ahc_htobe16(x) cpu_to_be16(x)
|
|
#define ahc_htobe32(x) cpu_to_be32(x)
|
|
#define ahc_htobe64(x) cpu_to_be64(x)
|
|
#define ahc_htole16(x) cpu_to_le16(x)
|
|
#define ahc_htole32(x) cpu_to_le32(x)
|
|
#define ahc_htole64(x) cpu_to_le64(x)
|
|
|
|
#define ahc_be16toh(x) be16_to_cpu(x)
|
|
#define ahc_be32toh(x) be32_to_cpu(x)
|
|
#define ahc_be64toh(x) be64_to_cpu(x)
|
|
#define ahc_le16toh(x) le16_to_cpu(x)
|
|
#define ahc_le32toh(x) le32_to_cpu(x)
|
|
#define ahc_le64toh(x) le64_to_cpu(x)
|
|
|
|
/************************* Configuration Data *********************************/
|
|
extern u_int aic7xxx_no_probe;
|
|
extern u_int aic7xxx_allow_memio;
|
|
extern struct scsi_host_template aic7xxx_driver_template;
|
|
|
|
/***************************** Bus Space/DMA **********************************/
|
|
|
|
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 __iomem *maddr;
|
|
} bus_space_handle_t;
|
|
|
|
typedef struct bus_dma_segment
|
|
{
|
|
dma_addr_t ds_addr;
|
|
bus_size_t ds_len;
|
|
} bus_dma_segment_t;
|
|
|
|
struct ahc_linux_dma_tag
|
|
{
|
|
bus_size_t alignment;
|
|
bus_size_t boundary;
|
|
bus_size_t maxsize;
|
|
};
|
|
typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
|
|
|
|
typedef dma_addr_t bus_dmamap_t;
|
|
|
|
typedef int bus_dma_filter_t(void*, dma_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 ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/,
|
|
bus_size_t /*alignment*/, bus_size_t /*boundary*/,
|
|
dma_addr_t /*lowaddr*/, dma_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 ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/);
|
|
|
|
int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
|
|
void** /*vaddr*/, int /*flags*/,
|
|
bus_dmamap_t* /*mapp*/);
|
|
|
|
void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/,
|
|
void* /*vaddr*/, bus_dmamap_t /*map*/);
|
|
|
|
void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/,
|
|
bus_dmamap_t /*map*/);
|
|
|
|
int ahc_dmamap_load(struct ahc_softc *ahc, 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 ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
|
|
|
|
/*
|
|
* Operations performed by ahc_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
|
|
* ahc_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 ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
|
|
|
|
/********************************** Includes **********************************/
|
|
#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
|
|
#define AIC_DEBUG_REGISTERS 1
|
|
#else
|
|
#define AIC_DEBUG_REGISTERS 0
|
|
#endif
|
|
#include "aic7xxx.h"
|
|
|
|
/***************************** Timer Facilities *******************************/
|
|
static __inline void
|
|
ahc_scb_timer_reset(struct scb *scb, u_int usec)
|
|
{
|
|
}
|
|
|
|
/***************************** SMP support ************************************/
|
|
#include <linux/spinlock.h>
|
|
|
|
#define AIC7XXX_DRIVER_VERSION "7.0"
|
|
|
|
/*************************** 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 persistent
|
|
* after a successfully completed inquiry command to the target when
|
|
* that inquiry data indicates a lun is present.
|
|
*/
|
|
typedef enum {
|
|
AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
|
|
AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
|
|
AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
|
|
AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
|
|
} ahc_linux_dev_flags;
|
|
|
|
struct ahc_linux_device {
|
|
/*
|
|
* 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 AHC_TAG_SUCCESS_INTERVAL 50
|
|
|
|
ahc_linux_dev_flags flags;
|
|
|
|
/*
|
|
* 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 AHC_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 AHC_DEV_PERIODIC_OTAG flag is set
|
|
* on this device.
|
|
*/
|
|
u_int commands_since_idle_or_otag;
|
|
#define AHC_OTAG_THRESH 500
|
|
};
|
|
|
|
/********************* 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 AHC_NSEG 128
|
|
|
|
/*
|
|
* Per-SCB OSM storage.
|
|
*/
|
|
struct scb_platform_data {
|
|
struct ahc_linux_device *dev;
|
|
dma_addr_t buf_busaddr;
|
|
uint32_t xfer_len;
|
|
uint32_t sense_resid; /* Auto-Sense residual */
|
|
};
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
struct ahc_platform_data {
|
|
/*
|
|
* Fields accessed from interrupt context.
|
|
*/
|
|
struct scsi_target *starget[AHC_NUM_TARGETS];
|
|
|
|
spinlock_t spin_lock;
|
|
u_int qfrozen;
|
|
struct completion *eh_done;
|
|
struct Scsi_Host *host; /* pointer to scsi host */
|
|
#define AHC_LINUX_NOIRQ ((uint32_t)~0)
|
|
uint32_t irq; /* IRQ for this adapter */
|
|
uint32_t bios_address;
|
|
uint32_t mem_busaddr; /* Mem Base Addr */
|
|
};
|
|
|
|
/************************** 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 ahc_delay(long);
|
|
static __inline void
|
|
ahc_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 **********************************/
|
|
static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port);
|
|
static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
|
|
static __inline void ahc_outsb(struct ahc_softc * ahc, long port,
|
|
uint8_t *, int count);
|
|
static __inline void ahc_insb(struct ahc_softc * ahc, long port,
|
|
uint8_t *, int count);
|
|
|
|
static __inline uint8_t
|
|
ahc_inb(struct ahc_softc * ahc, long port)
|
|
{
|
|
uint8_t x;
|
|
|
|
if (ahc->tag == BUS_SPACE_MEMIO) {
|
|
x = readb(ahc->bsh.maddr + port);
|
|
} else {
|
|
x = inb(ahc->bsh.ioport + port);
|
|
}
|
|
mb();
|
|
return (x);
|
|
}
|
|
|
|
static __inline void
|
|
ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
|
|
{
|
|
if (ahc->tag == BUS_SPACE_MEMIO) {
|
|
writeb(val, ahc->bsh.maddr + port);
|
|
} else {
|
|
outb(val, ahc->bsh.ioport + port);
|
|
}
|
|
mb();
|
|
}
|
|
|
|
static __inline void
|
|
ahc_outsb(struct ahc_softc * ahc, 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++)
|
|
ahc_outb(ahc, port, *array++);
|
|
}
|
|
|
|
static __inline void
|
|
ahc_insb(struct ahc_softc * ahc, 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++ = ahc_inb(ahc, port);
|
|
}
|
|
|
|
/**************************** Initialization **********************************/
|
|
int ahc_linux_register_host(struct ahc_softc *,
|
|
struct scsi_host_template *);
|
|
|
|
/*************************** Pretty Printing **********************************/
|
|
struct info_str {
|
|
char *buffer;
|
|
int length;
|
|
off_t offset;
|
|
int pos;
|
|
};
|
|
|
|
void ahc_format_transinfo(struct info_str *info,
|
|
struct ahc_transinfo *tinfo);
|
|
|
|
/******************************** Locking *************************************/
|
|
/* Lock protecting internal data structures */
|
|
|
|
static __inline void
|
|
ahc_lockinit(struct ahc_softc *ahc)
|
|
{
|
|
spin_lock_init(&ahc->platform_data->spin_lock);
|
|
}
|
|
|
|
static __inline void
|
|
ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
|
|
{
|
|
spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
|
|
}
|
|
|
|
static __inline void
|
|
ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
|
|
{
|
|
spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
|
|
}
|
|
|
|
/******************************* 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
|
|
|
|
typedef enum
|
|
{
|
|
AHC_POWER_STATE_D0,
|
|
AHC_POWER_STATE_D1,
|
|
AHC_POWER_STATE_D2,
|
|
AHC_POWER_STATE_D3
|
|
} ahc_power_state;
|
|
|
|
/**************************** VL/EISA Routines ********************************/
|
|
#ifdef CONFIG_EISA
|
|
int ahc_linux_eisa_init(void);
|
|
void ahc_linux_eisa_exit(void);
|
|
int aic7770_map_registers(struct ahc_softc *ahc,
|
|
u_int port);
|
|
int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
|
|
#else
|
|
static inline int ahc_linux_eisa_init(void) {
|
|
return -ENODEV;
|
|
}
|
|
static inline void ahc_linux_eisa_exit(void) {
|
|
}
|
|
#endif
|
|
|
|
/******************************* PCI Routines *********************************/
|
|
#ifdef CONFIG_PCI
|
|
int ahc_linux_pci_init(void);
|
|
void ahc_linux_pci_exit(void);
|
|
int ahc_pci_map_registers(struct ahc_softc *ahc);
|
|
int ahc_pci_map_int(struct ahc_softc *ahc);
|
|
|
|
static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
|
|
int reg, int width);
|
|
|
|
static __inline uint32_t
|
|
ahc_pci_read_config(ahc_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("ahc_pci_read_config: Read size too big");
|
|
/* NOTREACHED */
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
|
|
int reg, uint32_t value,
|
|
int width);
|
|
|
|
static __inline void
|
|
ahc_pci_write_config(ahc_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("ahc_pci_write_config: Write size too big");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
|
|
static __inline int ahc_get_pci_function(ahc_dev_softc_t);
|
|
static __inline int
|
|
ahc_get_pci_function(ahc_dev_softc_t pci)
|
|
{
|
|
return (PCI_FUNC(pci->devfn));
|
|
}
|
|
|
|
static __inline int ahc_get_pci_slot(ahc_dev_softc_t);
|
|
static __inline int
|
|
ahc_get_pci_slot(ahc_dev_softc_t pci)
|
|
{
|
|
return (PCI_SLOT(pci->devfn));
|
|
}
|
|
|
|
static __inline int ahc_get_pci_bus(ahc_dev_softc_t);
|
|
static __inline int
|
|
ahc_get_pci_bus(ahc_dev_softc_t pci)
|
|
{
|
|
return (pci->bus->number);
|
|
}
|
|
#else
|
|
static inline int ahc_linux_pci_init(void) {
|
|
return 0;
|
|
}
|
|
static inline void ahc_linux_pci_exit(void) {
|
|
}
|
|
#endif
|
|
|
|
static __inline void ahc_flush_device_writes(struct ahc_softc *);
|
|
static __inline void
|
|
ahc_flush_device_writes(struct ahc_softc *ahc)
|
|
{
|
|
/* XXX Is this sufficient for all architectures??? */
|
|
ahc_inb(ahc, INTSTAT);
|
|
}
|
|
|
|
/**************************** Proc FS Support *********************************/
|
|
int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
|
|
off_t, int, int);
|
|
|
|
/*************************** Domain Validation ********************************/
|
|
/*********************** Transaction Access Wrappers *************************/
|
|
static __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
|
|
static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
|
|
static __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
|
|
static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
|
|
static __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
|
|
static __inline uint32_t ahc_get_transaction_status(struct scb *);
|
|
static __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
|
|
static __inline uint32_t ahc_get_scsi_status(struct scb *);
|
|
static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
|
|
static __inline u_long ahc_get_transfer_length(struct scb *);
|
|
static __inline int ahc_get_transfer_dir(struct scb *);
|
|
static __inline void ahc_set_residual(struct scb *, u_long);
|
|
static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
|
|
static __inline u_long ahc_get_residual(struct scb *);
|
|
static __inline u_long ahc_get_sense_residual(struct scb *);
|
|
static __inline int ahc_perform_autosense(struct scb *);
|
|
static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
|
|
struct scb *);
|
|
static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
|
|
struct ahc_devinfo *);
|
|
static __inline void ahc_platform_scb_free(struct ahc_softc *ahc,
|
|
struct scb *scb);
|
|
static __inline void ahc_freeze_scb(struct scb *scb);
|
|
|
|
static __inline
|
|
void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
|
|
{
|
|
cmd->result &= ~(CAM_STATUS_MASK << 16);
|
|
cmd->result |= status << 16;
|
|
}
|
|
|
|
static __inline
|
|
void ahc_set_transaction_status(struct scb *scb, uint32_t status)
|
|
{
|
|
ahc_cmd_set_transaction_status(scb->io_ctx,status);
|
|
}
|
|
|
|
static __inline
|
|
void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
|
|
{
|
|
cmd->result &= ~0xFFFF;
|
|
cmd->result |= status;
|
|
}
|
|
|
|
static __inline
|
|
void ahc_set_scsi_status(struct scb *scb, uint32_t status)
|
|
{
|
|
ahc_cmd_set_scsi_status(scb->io_ctx, status);
|
|
}
|
|
|
|
static __inline
|
|
uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
|
|
{
|
|
return ((cmd->result >> 16) & CAM_STATUS_MASK);
|
|
}
|
|
|
|
static __inline
|
|
uint32_t ahc_get_transaction_status(struct scb *scb)
|
|
{
|
|
return (ahc_cmd_get_transaction_status(scb->io_ctx));
|
|
}
|
|
|
|
static __inline
|
|
uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
|
|
{
|
|
return (cmd->result & 0xFFFF);
|
|
}
|
|
|
|
static __inline
|
|
uint32_t ahc_get_scsi_status(struct scb *scb)
|
|
{
|
|
return (ahc_cmd_get_scsi_status(scb->io_ctx));
|
|
}
|
|
|
|
static __inline
|
|
void ahc_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 ahc_get_transfer_length(struct scb *scb)
|
|
{
|
|
return (scb->platform_data->xfer_len);
|
|
}
|
|
|
|
static __inline
|
|
int ahc_get_transfer_dir(struct scb *scb)
|
|
{
|
|
return (scb->io_ctx->sc_data_direction);
|
|
}
|
|
|
|
static __inline
|
|
void ahc_set_residual(struct scb *scb, u_long resid)
|
|
{
|
|
scsi_set_resid(scb->io_ctx, resid);
|
|
}
|
|
|
|
static __inline
|
|
void ahc_set_sense_residual(struct scb *scb, u_long resid)
|
|
{
|
|
scb->platform_data->sense_resid = resid;
|
|
}
|
|
|
|
static __inline
|
|
u_long ahc_get_residual(struct scb *scb)
|
|
{
|
|
return scsi_get_resid(scb->io_ctx);
|
|
}
|
|
|
|
static __inline
|
|
u_long ahc_get_sense_residual(struct scb *scb)
|
|
{
|
|
return (scb->platform_data->sense_resid);
|
|
}
|
|
|
|
static __inline
|
|
int ahc_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
|
|
ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
|
|
{
|
|
return (sizeof(struct scsi_sense_data));
|
|
}
|
|
|
|
static __inline void
|
|
ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
|
|
struct ahc_devinfo *devinfo)
|
|
{
|
|
/* Nothing to do here for linux */
|
|
}
|
|
|
|
static __inline void
|
|
ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
|
|
{
|
|
}
|
|
|
|
int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
|
|
void ahc_platform_free(struct ahc_softc *ahc);
|
|
void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
|
|
|
|
static __inline void
|
|
ahc_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 ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
|
|
struct ahc_devinfo *devinfo, ahc_queue_alg);
|
|
int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
|
|
char channel, int lun, u_int tag,
|
|
role_t role, uint32_t status);
|
|
irqreturn_t
|
|
ahc_linux_isr(int irq, void *dev_id);
|
|
void ahc_platform_flushwork(struct ahc_softc *ahc);
|
|
void ahc_done(struct ahc_softc*, struct scb*);
|
|
void ahc_send_async(struct ahc_softc *, char channel,
|
|
u_int target, u_int lun, ac_code);
|
|
void ahc_print_path(struct ahc_softc *, struct scb *);
|
|
void ahc_platform_dump_card_state(struct ahc_softc *ahc);
|
|
|
|
#ifdef CONFIG_PCI
|
|
#define AHC_PCI_CONFIG 1
|
|
#else
|
|
#define AHC_PCI_CONFIG 0
|
|
#endif
|
|
#define bootverbose aic7xxx_verbose
|
|
extern u_int aic7xxx_verbose;
|
|
#endif /* _AIC7XXX_LINUX_H_ */
|