qla_init.c

linux-2.6.15.6

				    sizeof(nv->model_number)) != 0) {
				char *st, *en;

				strncpy(ha->model_number, nv->model_number,
				    sizeof(nv->model_number));
				st = en = ha->model_number;
				en += sizeof(nv->model_number) - 1;
				while (en > st) {
					if (*en != 0x20 && *en != 0x00)
						break;
					*en-- = '\0';
				}
			} else {
				uint16_t        index;

				index = (ha->pdev->subsystem_device & 0xff);
				if (index < QLA_MODEL_NAMES) {
					strcpy(ha->model_number,
					    qla2x00_model_name[index]);
					ha->model_desc =
					    qla2x00_model_desc[index];
				} else {
					strcpy(ha->model_number, "QLA23xx");
				}
			}
		}
	} else if (IS_QLA2200(ha)) {
		nv->firmware_options[0] |= BIT_2;
		/*
		 * 'Point-to-point preferred, else loop' is not a safe
		 * connection mode setting.
		 */
		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
		    (BIT_5 | BIT_4)) {
			/* Force 'loop preferred, else point-to-point'. */
			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
			nv->add_firmware_options[0] |= BIT_5;
		}
		strcpy(ha->model_number, "QLA22xx");
	} else /*if (IS_QLA2100(ha))*/ {
		strcpy(ha->model_number, "QLA2100");
	}

	/*
	 * Copy over NVRAM RISC parameter block to initialization control block.
	 */
	dptr1 = (uint8_t *)icb;
	dptr2 = (uint8_t *)&nv->parameter_block_version;
	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
	while (cnt--)
		*dptr1++ = *dptr2++;

	/* Copy 2nd half. */
	dptr1 = (uint8_t *)icb->add_firmware_options;
	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
	while (cnt--)
		*dptr1++ = *dptr2++;

	/* Prepare nodename */
	if ((icb->firmware_options[1] & BIT_6) == 0) {
		/*
		 * Firmware will apply the following mask if the nodename was
		 * not provided.
		 */
		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
		icb->node_name[0] &= 0xF0;
	}

	/*
	 * Set host adapter parameters.
	 */
	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
	/* Always load RISC code on non ISP2[12]00 chips. */
	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
		ha->flags.disable_risc_code_load = 0;
	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;

	ha->operating_mode =
	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;

	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
	    sizeof(ha->fw_seriallink_options));

	/* save HBA serial number */
	ha->serial0 = icb->port_name[5];
	ha->serial1 = icb->port_name[6];
	ha->serial2 = icb->port_name[7];
	ha->node_name = icb->node_name;
	ha->port_name = icb->port_name;

	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);

	ha->retry_count = nv->retry_count;

	/* Set minimum login_timeout to 4 seconds. */
	if (nv->login_timeout < ql2xlogintimeout)
		nv->login_timeout = ql2xlogintimeout;
	if (nv->login_timeout < 4)
		nv->login_timeout = 4;
	ha->login_timeout = nv->login_timeout;
	icb->login_timeout = nv->login_timeout;

	/* Set minimum RATOV to 200 tenths of a second. */
	ha->r_a_tov = 200;

	ha->loop_reset_delay = nv->reset_delay;

	/* Link Down Timeout = 0:
	 *
	 * 	When Port Down timer expires we will start returning
	 *	I/O's to OS with "DID_NO_CONNECT".
	 *
	 * Link Down Timeout != 0:
	 *
	 *	 The driver waits for the link to come up after link down
	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
	 */
	if (nv->link_down_timeout == 0) {
		ha->loop_down_abort_time =
		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
	} else {
		ha->link_down_timeout =	 nv->link_down_timeout;
		ha->loop_down_abort_time =
		    (LOOP_DOWN_TIME - ha->link_down_timeout);
	}

	/*
	 * Need enough time to try and get the port back.
	 */
	ha->port_down_retry_count = nv->port_down_retry_count;
	if (qlport_down_retry)
		ha->port_down_retry_count = qlport_down_retry;
	/* Set login_retry_count */
	ha->login_retry_count  = nv->retry_count;
	if (ha->port_down_retry_count == nv->port_down_retry_count &&
	    ha->port_down_retry_count > 3)
		ha->login_retry_count = ha->port_down_retry_count;
	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
		ha->login_retry_count = ha->port_down_retry_count;
	if (ql2xloginretrycount)
		ha->login_retry_count = ql2xloginretrycount;

	icb->lun_enables = __constant_cpu_to_le16(0);
	icb->command_resource_count = 0;
	icb->immediate_notify_resource_count = 0;
	icb->timeout = __constant_cpu_to_le16(0);

	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
		/* Enable RIO */
		icb->firmware_options[0] &= ~BIT_3;
		icb->add_firmware_options[0] &=
		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
		icb->add_firmware_options[0] |= BIT_2;
		icb->response_accumulation_timer = 3;
		icb->interrupt_delay_timer = 5;

		ha->flags.process_response_queue = 1;
	} else {
		/* Enable ZIO. */
		if (!ha->flags.init_done) {
			ha->zio_mode = icb->add_firmware_options[0] &
			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
			ha->zio_timer = icb->interrupt_delay_timer ?
			    icb->interrupt_delay_timer: 2;
		}
		icb->add_firmware_options[0] &=
		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
		ha->flags.process_response_queue = 0;
		if (ha->zio_mode != QLA_ZIO_DISABLED) {
			DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
			    "delay (%d us).\n", ha->host_no, ha->zio_mode,
			    ha->zio_timer * 100));
			qla_printk(KERN_INFO, ha,
			    "ZIO mode %d enabled; timer delay (%d us).\n",
			    ha->zio_mode, ha->zio_timer * 100);

			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
			ha->flags.process_response_queue = 1;
		}
	}

	if (rval) {
		DEBUG2_3(printk(KERN_WARNING
		    "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
	}
	return (rval);
}

static void
qla2x00_rport_add(void *data)
{
	fc_port_t *fcport = data;

	qla2x00_reg_remote_port(fcport->ha, fcport);
}

static void
qla2x00_rport_del(void *data)
{
	fc_port_t *fcport = data;

	if (fcport->rport)
		fc_remote_port_delete(fcport->rport);
	fcport->rport = NULL;
}

/**
 * qla2x00_alloc_fcport() - Allocate a generic fcport.
 * @ha: HA context
 * @flags: allocation flags
 *
 * Returns a pointer to the allocated fcport, or NULL, if none available.
 */
fc_port_t *
qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
{
	fc_port_t *fcport;

	fcport = kmalloc(sizeof(fc_port_t), flags);
	if (fcport == NULL)
		return (fcport);

	/* Setup fcport template structure. */
	memset(fcport, 0, sizeof (fc_port_t));
	fcport->ha = ha;
	fcport->port_type = FCT_UNKNOWN;
	fcport->loop_id = FC_NO_LOOP_ID;
	fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
	atomic_set(&fcport->state, FCS_UNCONFIGURED);
	fcport->flags = FCF_RLC_SUPPORT;
	fcport->supported_classes = FC_COS_UNSPECIFIED;
	INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
	INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);

	return (fcport);
}

/*
 * qla2x00_configure_loop
 *      Updates Fibre Channel Device Database with what is actually on loop.
 *
 * Input:
 *      ha                = adapter block pointer.
 *
 * Returns:
 *      0 = success.
 *      1 = error.
 *      2 = database was full and device was not configured.
 */
static int
qla2x00_configure_loop(scsi_qla_host_t *ha)
{
	int  rval;
	unsigned long flags, save_flags;

	rval = QLA_SUCCESS;

	/* Get Initiator ID */
	if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
		rval = qla2x00_configure_hba(ha);
		if (rval != QLA_SUCCESS) {
			DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
			    ha->host_no));
			return (rval);
		}
	}

	save_flags = flags = ha->dpc_flags;
	DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
	    ha->host_no, flags));

	/*
	 * If we have both an RSCN and PORT UPDATE pending then handle them
	 * both at the same time.
	 */
	clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
	clear_bit(RSCN_UPDATE, &ha->dpc_flags);

	/* Determine what we need to do */
	if (ha->current_topology == ISP_CFG_FL &&
	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);

	} else if (ha->current_topology == ISP_CFG_F &&
	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);
		clear_bit(LOCAL_LOOP_UPDATE, &flags);

	} else if (!ha->flags.online ||
	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);
		set_bit(LOCAL_LOOP_UPDATE, &flags);
	}

	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
		if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			rval = qla2x00_configure_local_loop(ha);
		}
	}

	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
		if (LOOP_TRANSITION(ha)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			rval = qla2x00_configure_fabric(ha);
		}
	}

	if (rval == QLA_SUCCESS) {
		if (atomic_read(&ha->loop_down_timer) ||
		    test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			atomic_set(&ha->loop_state, LOOP_READY);

			DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
		}
	}

	if (rval) {
		DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
		    __func__, ha->host_no));
	} else {
		DEBUG3(printk("%s: exiting normally\n", __func__));
	}

	/* Restore state if a resync event occured during processing */
	if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
		if (test_bit(RSCN_UPDATE, &save_flags))
			set_bit(RSCN_UPDATE, &ha->dpc_flags);
	}

	return (rval);
}



/*
 * qla2x00_configure_local_loop
 *	Updates Fibre Channel Device Database with local loop devices.
 *
 * Input:
 *	ha = adapter block pointer.
 *
 * Returns:
 *	0 = success.
 */
static int
qla2x00_configure_local_loop(scsi_qla_host_t *ha)
{
	int		rval, rval2;
	int		found_devs;
	int		found;
	fc_port_t	*fcport, *new_fcport;

	uint16_t	index;
	uint16_t	entries;
	char		*id_iter;
	uint16_t	loop_id;
	uint8_t		domain, area, al_pa;

	found_devs = 0;
	new_fcport = NULL;
	entries = MAX_FIBRE_DEVICES;

	DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
	DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));

	/* Get list of logged in devices. */
	memset(ha->gid_list, 0, GID_LIST_SIZE);
	rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
	    &entries);
	if (rval != QLA_SUCCESS)
		goto cleanup_allocation;

	DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
	    ha->host_no, entries));
	DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
	    entries * sizeof(struct gid_list_info)));

	/* Allocate temporary fcport for any new fcports discovered. */
	new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
	if (new_fcport == NULL) {
		rval = QLA_MEMORY_ALLOC_FAILED;
		goto cleanup_allocation;
	}
	new_fcport->flags &= ~FCF_FABRIC_DEVICE;

	/*
	 * Mark local devices that were present with FCF_DEVICE_LOST for now.
	 */
	list_for_each_entry(fcport, &ha->fcports, list) {
		if (atomic_read(&fcport->state) == FCS_ONLINE &&
		    fcport->port_type != FCT_BROADCAST &&
		    (fcport->flags & FCF_FABRIC_DEVICE) == 0) {

			DEBUG(printk("scsi(%ld): Marking port lost, "
			    "loop_id=0x%04x\n",
			    ha->host_no, fcport->loop_id));

			atomic_set(&fcport->state, FCS_DEVICE_LOST);
			fcport->flags &= ~FCF_FARP_DONE;
		}
	}

	/* Add devices to port list. */
	id_iter = (char *)ha->gid_list;
	for (index = 0; index < entries; index++) {
		domain = ((struct gid_list_info *)id_iter)->domain;
		area = ((struct gid_list_info *)id_iter)->area;
		al_pa = ((struct gid_list_info *)id_iter)->al_pa;
		if (IS_QLA2100(ha) || IS_QLA2200(ha))
			loop_id = (uint16_t)
			    ((struct gid_list_info *)id_iter)->loop_id_2100;
		else
			loop_id = le16_to_cpu(
			    ((struct gid_list_info *)id_iter)->loop_id);
		id_iter += ha->gid_list_info_size;

		/* Bypass reserved domain fields. */
		if ((domain & 0xf0) == 0xf0)
			continue;

		/* Bypass if not same domain and area of adapter. */
		if (area && domain &&
		    (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
			continue;

		/* Bypass invalid local loop ID. */
		if (loop_id > LAST_LOCAL_LOOP_ID)
			continue;

		/* Fill in member data. */
		new_fcport->d_id.b.domain = domain;
		new_fcport->d_id.b.area = area;
		new_fcport->d_id.b.al_pa = al_pa;
		new_fcport->loop_id = loop_id;
		rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
		if (rval2 != QLA_SUCCESS) {
			DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
			    "information -- get_port_database=%x, "
			    "loop_id=0x%04x\n",
			    ha->host_no, rval2, new_fcport->loop_id));
			continue;
		}

		/* Check for matching device in port list. */
		found = 0;
		fcport = NULL;
		list_for_each_entry(fcport, &ha->fcports, list) {
			if (memcmp(new_fcport->port_name, fcport->port_name,
			    WWN_SIZE))
				continue;

			fcport->flags &= ~(FCF_FABRIC_DEVICE |
			    FCF_PERSISTENT_BOUND);
			fcport->loop_id = new_fcport->loop_id;
			fcport->port_type = new_fcport->port_type;
			fcport->d_id.b24 = new_fcport->d_id.b24;
			memcpy(fcport->node_name, new_fcport->node_name,
			    WWN_SIZE);

			found++;
			break;
		}

		if (!found) {
			/* New device, add to fcports list. */
			new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
			list_add_tail(&new_fcport->list, &ha->fcports);

			/* Allocate a new replacement fcport. */
			fcport = new_fcport;
			new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
			if (new_fcport == NULL) {
				rval = QLA_MEMORY_ALLOC_FAILED;
				goto cleanup_allocation;
			}
			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
		}