ips.c

来自「Linux Kernel 2.6.9 for OMAP1710」· C语言 代码 · 共 1,776 行 · 第 1/5 页

	IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT,
	IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_NONE,
	IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_UNK,
	IPS_DATA_NONE, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_NONE,
	IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_OUT,
	IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_NONE,
	IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_OUT,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
	IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK
};

/*
 * Function prototypes
 */
int ips_detect(Scsi_Host_Template *);
int ips_release(struct Scsi_Host *);
int ips_eh_abort(Scsi_Cmnd *);
int ips_eh_reset(Scsi_Cmnd *);
int ips_queue(Scsi_Cmnd *, void (*)(Scsi_Cmnd *));
const char *ips_info(struct Scsi_Host *);
irqreturn_t do_ipsintr(int, void *, struct pt_regs *);
static int ips_hainit(ips_ha_t *);
static int ips_map_status(ips_ha_t *, ips_scb_t *, ips_stat_t *);
static int ips_send_wait(ips_ha_t *, ips_scb_t *, int, int);
static int ips_send_cmd(ips_ha_t *, ips_scb_t *);
static int ips_online(ips_ha_t *, ips_scb_t *);
static int ips_inquiry(ips_ha_t *, ips_scb_t *);
static int ips_rdcap(ips_ha_t *, ips_scb_t *);
static int ips_msense(ips_ha_t *, ips_scb_t *);
static int ips_reqsen(ips_ha_t *, ips_scb_t *);
static int ips_deallocatescbs(ips_ha_t *, int);
static int ips_allocatescbs(ips_ha_t *);
static int ips_reset_copperhead(ips_ha_t *);
static int ips_reset_copperhead_memio(ips_ha_t *);
static int ips_reset_morpheus(ips_ha_t *);
static int ips_issue_copperhead(ips_ha_t *, ips_scb_t *);
static int ips_issue_copperhead_memio(ips_ha_t *, ips_scb_t *);
static int ips_issue_i2o(ips_ha_t *, ips_scb_t *);
static int ips_issue_i2o_memio(ips_ha_t *, ips_scb_t *);
static int ips_isintr_copperhead(ips_ha_t *);
static int ips_isintr_copperhead_memio(ips_ha_t *);
static int ips_isintr_morpheus(ips_ha_t *);
static int ips_wait(ips_ha_t *, int, int);
static int ips_write_driver_status(ips_ha_t *, int);
static int ips_read_adapter_status(ips_ha_t *, int);
static int ips_read_subsystem_parameters(ips_ha_t *, int);
static int ips_read_config(ips_ha_t *, int);
static int ips_clear_adapter(ips_ha_t *, int);
static int ips_readwrite_page5(ips_ha_t *, int, int);
static int ips_init_copperhead(ips_ha_t *);
static int ips_init_copperhead_memio(ips_ha_t *);
static int ips_init_morpheus(ips_ha_t *);
static int ips_isinit_copperhead(ips_ha_t *);
static int ips_isinit_copperhead_memio(ips_ha_t *);
static int ips_isinit_morpheus(ips_ha_t *);
static int ips_erase_bios(ips_ha_t *);
static int ips_program_bios(ips_ha_t *, char *, uint32_t, uint32_t);
static int ips_verify_bios(ips_ha_t *, char *, uint32_t, uint32_t);
static int ips_erase_bios_memio(ips_ha_t *);
static int ips_program_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
static int ips_verify_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
static int ips_flash_copperhead(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
static int ips_flash_bios(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
static int ips_flash_firmware(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
static void ips_free_flash_copperhead(ips_ha_t * ha);
static void ips_get_bios_version(ips_ha_t *, int);
static void ips_identify_controller(ips_ha_t *);
static void ips_chkstatus(ips_ha_t *, IPS_STATUS *);
static void ips_enable_int_copperhead(ips_ha_t *);
static void ips_enable_int_copperhead_memio(ips_ha_t *);
static void ips_enable_int_morpheus(ips_ha_t *);
static int ips_intr_copperhead(ips_ha_t *);
static int ips_intr_morpheus(ips_ha_t *);
static void ips_next(ips_ha_t *, int);
static void ipsintr_blocking(ips_ha_t *, struct ips_scb *);
static void ipsintr_done(ips_ha_t *, struct ips_scb *);
static void ips_done(ips_ha_t *, ips_scb_t *);
static void ips_free(ips_ha_t *);
static void ips_init_scb(ips_ha_t *, ips_scb_t *);
static void ips_freescb(ips_ha_t *, ips_scb_t *);
static void ips_setup_funclist(ips_ha_t *);
static void ips_statinit(ips_ha_t *);
static void ips_statinit_memio(ips_ha_t *);
static void ips_fix_ffdc_time(ips_ha_t *, ips_scb_t *, time_t);
static void ips_ffdc_reset(ips_ha_t *, int);
static void ips_ffdc_time(ips_ha_t *);
static uint32_t ips_statupd_copperhead(ips_ha_t *);
static uint32_t ips_statupd_copperhead_memio(ips_ha_t *);
static uint32_t ips_statupd_morpheus(ips_ha_t *);
static ips_scb_t *ips_getscb(ips_ha_t *);
static void ips_putq_scb_head(ips_scb_queue_t *, ips_scb_t *);
static void ips_putq_wait_tail(ips_wait_queue_t *, Scsi_Cmnd *);
static void ips_putq_copp_tail(ips_copp_queue_t *,
				      ips_copp_wait_item_t *);
static ips_scb_t *ips_removeq_scb_head(ips_scb_queue_t *);
static ips_scb_t *ips_removeq_scb(ips_scb_queue_t *, ips_scb_t *);
static Scsi_Cmnd *ips_removeq_wait_head(ips_wait_queue_t *);
static Scsi_Cmnd *ips_removeq_wait(ips_wait_queue_t *, Scsi_Cmnd *);
static ips_copp_wait_item_t *ips_removeq_copp(ips_copp_queue_t *,
						     ips_copp_wait_item_t *);
static ips_copp_wait_item_t *ips_removeq_copp_head(ips_copp_queue_t *);

static int ips_is_passthru(Scsi_Cmnd *);
static int ips_make_passthru(ips_ha_t *, Scsi_Cmnd *, ips_scb_t *, int);
static int ips_usrcmd(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
static void ips_cleanup_passthru(ips_ha_t *, ips_scb_t *);
static void ips_scmd_buf_write(Scsi_Cmnd * scmd, void *data,
			       unsigned int count);
static void ips_scmd_buf_read(Scsi_Cmnd * scmd, void *data, unsigned int count);

int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int);
static int ips_host_info(ips_ha_t *, char *, off_t, int);
static void copy_mem_info(IPS_INFOSTR *, char *, int);
static int copy_info(IPS_INFOSTR *, char *, ...);
static int ips_get_version_info(ips_ha_t * ha, dma_addr_t, int intr);
static void ips_version_check(ips_ha_t * ha, int intr);
static int ips_abort_init(ips_ha_t * ha, int index);
static int ips_init_phase2(int index);

static int ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr);
static int ips_register_scsi(int index);
/*--------------------------------------------------------------------------*/
/* Exported Functions                                                       */
/*--------------------------------------------------------------------------*/

/****************************************************************************/
/*                                                                          */
/* Routine Name: ips_setup                                                  */
/*                                                                          */
/* Routine Description:                                                     */
/*                                                                          */
/*   setup parameters to the driver                                         */
/*                                                                          */
/****************************************************************************/
static int
ips_setup(char *ips_str)
{

	int i;
	char *key;
	char *value;
	IPS_OPTION options[] = {
		{"noi2o", &ips_force_i2o, 0},
		{"nommap", &ips_force_memio, 0},
		{"ioctlsize", &ips_ioctlsize, IPS_IOCTL_SIZE},
		{"cdboot", &ips_cd_boot, 0},
		{"maxcmds", &MaxLiteCmds, 32},
	};

	/* Don't use strtok() anymore ( if 2.4 Kernel or beyond ) */
	/* Search for value */
	while ((key = strsep(&ips_str, ",."))) {
		if (!*key)
			continue;
		value = strchr(key, ':');
		if (value)
			*value++ = '\0';
		/*
		 * We now have key/value pairs.
		 * Update the variables
		 */
		for (i = 0; i < (sizeof (options) / sizeof (options[0])); i++) {
			if (strnicmp
			    (key, options[i].option_name,
			     strlen(options[i].option_name)) == 0) {
				if (value)
					*options[i].option_flag =
					    simple_strtoul(value, NULL, 0);
				else
					*options[i].option_flag =
					    options[i].option_value;
				break;
			}
		}
	}

	return (1);
}

__setup("ips=", ips_setup);

/****************************************************************************/
/*                                                                          */
/* Routine Name: ips_detect                                                 */
/*                                                                          */
/* Routine Description:                                                     */
/*                                                                          */
/*   Detect and initialize the driver                                       */
/*                                                                          */
/* NOTE: this routine is called under the io_request_lock spinlock          */
/*                                                                          */
/****************************************************************************/
int
ips_detect(Scsi_Host_Template * SHT)
{
	int i;

	METHOD_TRACE("ips_detect", 1);

#ifdef MODULE
	if (ips)
		ips_setup(ips);
#endif

	for (i = 0; i < ips_num_controllers; i++) {
		if (ips_register_scsi(i))
			ips_free(ips_ha[i]);
		ips_released_controllers++;
	}
	ips_hotplug = 1;
	return (ips_num_controllers);
}

/****************************************************************************/
/*   configure the function pointers to use the functions that will work    */
/*   with the found version of the adapter                                  */
/****************************************************************************/
static void
ips_setup_funclist(ips_ha_t * ha)
{

	/*                                
	 * Setup Functions
	 */
	if (IPS_IS_MORPHEUS(ha) || IPS_IS_MARCO(ha)) {
		/* morpheus / marco / sebring */
		ha->func.isintr = ips_isintr_morpheus;
		ha->func.isinit = ips_isinit_morpheus;
		ha->func.issue = ips_issue_i2o_memio;
		ha->func.init = ips_init_morpheus;
		ha->func.statupd = ips_statupd_morpheus;
		ha->func.reset = ips_reset_morpheus;
		ha->func.intr = ips_intr_morpheus;
		ha->func.enableint = ips_enable_int_morpheus;
	} else if (IPS_USE_MEMIO(ha)) {
		/* copperhead w/MEMIO */
		ha->func.isintr = ips_isintr_copperhead_memio;
		ha->func.isinit = ips_isinit_copperhead_memio;
		ha->func.init = ips_init_copperhead_memio;
		ha->func.statupd = ips_statupd_copperhead_memio;
		ha->func.statinit = ips_statinit_memio;
		ha->func.reset = ips_reset_copperhead_memio;
		ha->func.intr = ips_intr_copperhead;
		ha->func.erasebios = ips_erase_bios_memio;
		ha->func.programbios = ips_program_bios_memio;
		ha->func.verifybios = ips_verify_bios_memio;
		ha->func.enableint = ips_enable_int_copperhead_memio;
		if (IPS_USE_I2O_DELIVER(ha))
			ha->func.issue = ips_issue_i2o_memio;
		else
			ha->func.issue = ips_issue_copperhead_memio;
	} else {
		/* copperhead */
		ha->func.isintr = ips_isintr_copperhead;
		ha->func.isinit = ips_isinit_copperhead;
		ha->func.init = ips_init_copperhead;
		ha->func.statupd = ips_statupd_copperhead;
		ha->func.statinit = ips_statinit;
		ha->func.reset = ips_reset_copperhead;
		ha->func.intr = ips_intr_copperhead;
		ha->func.erasebios = ips_erase_bios;
		ha->func.programbios = ips_program_bios;
		ha->func.verifybios = ips_verify_bios;
		ha->func.enableint = ips_enable_int_copperhead;

		if (IPS_USE_I2O_DELIVER(ha))
			ha->func.issue = ips_issue_i2o;
		else
			ha->func.issue = ips_issue_copperhead;
	}
}

/****************************************************************************/
/*                                                                          */
/* Routine Name: ips_release                                                */
/*                                                                          */
/* Routine Description:                                                     */
/*                                                                          */
/*   Remove a driver                                                        */
/*                                                                          */
/****************************************************************************/
int
ips_release(struct Scsi_Host *sh)
{
	ips_scb_t *scb;
	ips_ha_t *ha;
	int i;

	METHOD_TRACE("ips_release", 1);

	for (i = 0; i < IPS_MAX_ADAPTERS && ips_sh[i] != sh; i++) ;

	if (i == IPS_MAX_ADAPTERS) {
		printk(KERN_WARNING
		       "(%s) release, invalid Scsi_Host pointer.\n", ips_name);
		BUG();
		return (FALSE);
	}

	ha = IPS_HA(sh);

	if (!ha)
		return (FALSE);

	/* flush the cache on the controller */
	scb = &ha->scbs[ha->max_cmds - 1];

	ips_init_scb(ha, scb);

	scb->timeout = ips_cmd_timeout;
	scb->cdb[0] = IPS_CMD_FLUSH;

	scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
	scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
	scb->cmd.flush_cache.state = IPS_NORM_STATE;
	scb->cmd.flush_cache.reserved = 0;
	scb->cmd.flush_cache.reserved2 = 0;
	scb->cmd.flush_cache.reserved3 = 0;
	scb->cmd.flush_cache.reserved4 = 0;

	IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Cache.\n");

	/* send command */
	if (ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_ON) == IPS_FAILURE)
		IPS_PRINTK(KERN_WARNING, ha->pcidev, "Incomplete Flush.\n");