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[SCSI] aic79xx: update to use scsi_transport_spi

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This patch updates the aic79xx driver to take advantage of the
scsi_transport_spi infrastructure. Patch is quite a mess as some
procedures have been reshuffled to be closer to the aic7xxx driver.

Rejections fixed and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Hannes Reinecke 2005-07-22 16:44:04 +02:00 committed by James Bottomley
parent 60a1321384
commit 73a2546210
3 changed files with 808 additions and 2846 deletions
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3439
drivers/scsi/aic7xxx/aic79xx_osm.c
View file

File diff suppressed because it is too large Load diff

197
drivers/scsi/aic7xxx/aic79xx_osm.h
View file

@ -42,6 +42,7 @@
#ifndef _AIC79XX_LINUX_H_
#define _AIC79XX_LINUX_H_
#include <linux/config.h>
#include <linux/types.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
@ -49,18 +50,23 @@
#include <linux/pci.h>
#include <linux/smp_lock.h>
#include <linux/version.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#include <linux/interrupt.h> /* For tasklet support. */
#include <linux/config.h>
#include <linux/slab.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 ahd
#include "scsi.h"
#include <scsi/scsi_host.h>
/* Name space conflict with BSD queue macros */
#ifdef LIST_HEAD
@ -95,7 +101,7 @@
/************************* Forward Declarations *******************************/
struct ahd_softc;
typedef struct pci_dev *ahd_dev_softc_t;
typedef Scsi_Cmnd *ahd_io_ctx_t;
typedef struct scsi_cmnd *ahd_io_ctx_t;
/******************************* Byte Order ***********************************/
#define ahd_htobe16(x) cpu_to_be16(x)
@ -115,7 +121,7 @@ typedef Scsi_Cmnd *ahd_io_ctx_t;
/************************* Configuration Data *********************************/
extern uint32_t aic79xx_allow_memio;
extern int aic79xx_detect_complete;
extern Scsi_Host_Template aic79xx_driver_template;
extern struct scsi_host_template aic79xx_driver_template;
/***************************** Bus Space/DMA **********************************/
@ -145,11 +151,7 @@ struct ahd_linux_dma_tag
};
typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
struct ahd_linux_dmamap
{
dma_addr_t bus_addr;
};
typedef struct ahd_linux_dmamap* bus_dmamap_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);
@ -226,12 +228,12 @@ typedef struct timer_list ahd_timer_t;
#define ahd_timer_init init_timer
#define ahd_timer_stop del_timer_sync
typedef void ahd_linux_callback_t (u_long);
static __inline void ahd_timer_reset(ahd_timer_t *timer, u_int usec,
static __inline void ahd_timer_reset(ahd_timer_t *timer, 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)
ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
{
struct ahd_softc *ahd;
@ -382,62 +384,12 @@ struct ahd_linux_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 scsi_device *sdev[AHD_NUM_LUNS];
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 ***********************/
@ -452,16 +404,11 @@ struct ahd_linux_target {
/*
* Per-SCB OSM storage.
*/
typedef enum {
AHD_SCB_UP_EH_SEM = 0x1
} ahd_linux_scb_flags;
struct scb_platform_data {
struct ahd_linux_device *dev;
dma_addr_t buf_busaddr;
uint32_t xfer_len;
uint32_t sense_resid; /* Auto-Sense residual */
ahd_linux_scb_flags flags;
};
/*
@ -470,42 +417,24 @@ struct scb_platform_data {
* 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];
struct ahd_completeq completeq;
struct scsi_target *starget[AHD_NUM_TARGETS];
spinlock_t spin_lock;
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 */
uint64_t hw_dma_mask;
ahd_linux_softc_flags flags;
#define AHD_SCB_UP_EH_SEM 0x1
uint32_t flags;
};
/************************** OS Utility Wrappers *******************************/
@ -622,7 +551,7 @@ ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
/**************************** Initialization **********************************/
int ahd_linux_register_host(struct ahd_softc *,
Scsi_Host_Template *);
struct scsi_host_template *);
uint64_t ahd_linux_get_memsize(void);
@ -643,17 +572,6 @@ 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);
@ -678,57 +596,6 @@ 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 and some 2.4.X versions, the midlayer takes our
* lock just before calling us, so we avoid locking again.
* For other kernel versions, the io_request_lock is taken
* just before our entry point is called. In this case, we
* trade the io_request_lock for our per-softc lock.
*/
#if AHD_SCSI_HAS_HOST_LOCK == 0
spin_unlock(&io_request_lock);
spin_lock(&ahd->platform_data->spin_lock);
#endif
}
static __inline void
ahd_midlayer_entrypoint_unlock(struct ahd_softc *ahd, unsigned long *flags)
{
#if AHD_SCSI_HAS_HOST_LOCK == 0
spin_unlock(&ahd->platform_data->spin_lock);
spin_lock(&io_request_lock);
#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 AHD_SCSI_HAS_HOST_LOCK == 0
spin_lock(&io_request_lock);
#endif
}
static __inline void
ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
{
#if AHD_SCSI_HAS_HOST_LOCK == 0
spin_unlock(&io_request_lock);
#endif
}
static __inline void
ahd_list_lockinit(void)
{
@ -909,20 +776,14 @@ ahd_flush_device_writes(struct ahd_softc *ahd)
int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
off_t, 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_cmd_set_transaction_status(struct 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_cmd_set_scsi_status(struct 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_cmd_get_transaction_status(struct 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_cmd_get_scsi_status(struct 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 *);
@ -941,7 +802,7 @@ static __inline void ahd_platform_scb_free(struct ahd_softc *ahd,
static __inline void ahd_freeze_scb(struct scb *scb);
static __inline
void ahd_cmd_set_transaction_status(Scsi_Cmnd *cmd, uint32_t status)
void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~(CAM_STATUS_MASK << 16);
cmd->result |= status << 16;
@ -954,7 +815,7 @@ void ahd_set_transaction_status(struct scb *scb, uint32_t status)
}
static __inline
void ahd_cmd_set_scsi_status(Scsi_Cmnd *cmd, uint32_t status)
void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~0xFFFF;
cmd->result |= status;
@ -967,7 +828,7 @@ void ahd_set_scsi_status(struct scb *scb, uint32_t status)
}
static __inline
uint32_t ahd_cmd_get_transaction_status(Scsi_Cmnd *cmd)
uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
{
return ((cmd->result >> 16) & CAM_STATUS_MASK);
}
@ -979,7 +840,7 @@ uint32_t ahd_get_transaction_status(struct scb *scb)
}
static __inline
uint32_t ahd_cmd_get_scsi_status(Scsi_Cmnd *cmd)
uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
{
return (cmd->result & 0xFFFF);
}

18
drivers/scsi/aic7xxx/aic79xx_proc.c
View file

@ -49,7 +49,7 @@ static void ahd_dump_target_state(struct ahd_softc *ahd,
u_int our_id, char channel,
u_int target_id, u_int target_offset);
static void ahd_dump_device_state(struct info_str *info,
struct ahd_linux_device *dev);
struct scsi_device *sdev);
static int ahd_proc_write_seeprom(struct ahd_softc *ahd,
char *buffer, int length);
@ -167,6 +167,7 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
u_int target_offset)
{
struct ahd_linux_target *targ;
struct scsi_target *starget;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int lun;
@ -176,7 +177,8 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
copy_info(info, "Target %d Negotiation Settings\n", target_id);
copy_info(info, "\tUser: ");
ahd_format_transinfo(info, &tinfo->user);
targ = ahd->platform_data->targets[target_offset];
starget = ahd->platform_data->starget[target_offset];
targ = scsi_transport_target_data(starget);
if (targ == NULL)
return;
@ -184,12 +186,11 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
ahd_format_transinfo(info, &tinfo->goal);
copy_info(info, "\tCurr: ");
ahd_format_transinfo(info, &tinfo->curr);
copy_info(info, "\tTransmission Errors %ld\n", targ->errors_detected);
for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
struct ahd_linux_device *dev;
struct scsi_device *dev;
dev = targ->devices[lun];
dev = targ->sdev[lun];
if (dev == NULL)
continue;
@ -199,10 +200,13 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
}
static void
ahd_dump_device_state(struct info_str *info, struct ahd_linux_device *dev)
ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev)
{
struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
dev->target->channel + 'A', dev->target->target, dev->lun);
sdev->sdev_target->channel + 'A',
sdev->sdev_target->id, sdev->lun);
copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
copy_info(info, "\t\tCommands Active %d\n", dev->active);