lpfc_attr.c

linux-2.6.15.6

out:
	return error;
}

void
lpfc_free_sysfs_attr(struct lpfc_hba *phba)
{
	struct Scsi_Host *host = phba->host;

	sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
	sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
}


/*
 * Dynamic FC Host Attributes Support
 */

static void
lpfc_get_host_port_id(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
	/* note: fc_myDID already in cpu endianness */
	fc_host_port_id(shost) = phba->fc_myDID;
}

static void
lpfc_get_host_port_type(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->hba_state == LPFC_HBA_READY) {
		if (phba->fc_topology == TOPOLOGY_LOOP) {
			if (phba->fc_flag & FC_PUBLIC_LOOP)
				fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
		} else {
			if (phba->fc_flag & FC_FABRIC)
				fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
			else
				fc_host_port_type(shost) = FC_PORTTYPE_PTP;
		}
	} else
		fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_port_state(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->fc_flag & FC_OFFLINE_MODE)
		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
	else {
		switch (phba->hba_state) {
		case LPFC_INIT_START:
		case LPFC_INIT_MBX_CMDS:
		case LPFC_LINK_DOWN:
			fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
			break;
		case LPFC_LINK_UP:
		case LPFC_LOCAL_CFG_LINK:
		case LPFC_FLOGI:
		case LPFC_FABRIC_CFG_LINK:
		case LPFC_NS_REG:
		case LPFC_NS_QRY:
		case LPFC_BUILD_DISC_LIST:
		case LPFC_DISC_AUTH:
		case LPFC_CLEAR_LA:
		case LPFC_HBA_READY:
			/* Links up, beyond this port_type reports state */
			fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
			break;
		case LPFC_HBA_ERROR:
			fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
			break;
		default:
			fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
			break;
		}
	}

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_speed(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];

	spin_lock_irq(shost->host_lock);

	if (phba->hba_state == LPFC_HBA_READY) {
		switch(phba->fc_linkspeed) {
			case LA_1GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
			break;
			case LA_2GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
			break;
			case LA_4GHZ_LINK:
				fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
			break;
			default:
				fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
			break;
		}
	}

	spin_unlock_irq(shost->host_lock);
}

static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
	u64 node_name;

	spin_lock_irq(shost->host_lock);

	if ((phba->fc_flag & FC_FABRIC) ||
	    ((phba->fc_topology == TOPOLOGY_LOOP) &&
	     (phba->fc_flag & FC_PUBLIC_LOOP)))
		node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
	else
		/* fabric is local port if there is no F/FL_Port */
		node_name = wwn_to_u64(phba->fc_nodename.u.wwn);

	spin_unlock_irq(shost->host_lock);

	fc_host_fabric_name(shost) = node_name;
}


static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{
	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
	struct lpfc_sli *psli = &phba->sli;
	struct fc_host_statistics *hs = &phba->link_stats;
	LPFC_MBOXQ_t *pmboxq;
	MAILBOX_t *pmb;
	int rc = 0;

	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return NULL;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

	pmb = &pmboxq->mb;
	pmb->mbxCommand = MBX_READ_STATUS;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
		(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
	else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
		if (rc == MBX_TIMEOUT)
			pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
		else
			mempool_free(pmboxq, phba->mbox_mem_pool);
		return NULL;
	}

	memset(hs, 0, sizeof (struct fc_host_statistics));

	hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
	hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
	hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
	hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);

	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
	pmb->mbxCommand = MBX_READ_LNK_STAT;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
	    (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
	else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
		if (rc == MBX_TIMEOUT)
			pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
		else
			mempool_free( pmboxq, phba->mbox_mem_pool);
		return NULL;
	}

	hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
	hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
	hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
	hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
	hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
	hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
	hs->error_frames = pmb->un.varRdLnk.crcCnt;

	if (phba->fc_topology == TOPOLOGY_LOOP) {
		hs->lip_count = (phba->fc_eventTag >> 1);
		hs->nos_count = -1;
	} else {
		hs->lip_count = -1;
		hs->nos_count = (phba->fc_eventTag >> 1);
	}

	hs->dumped_frames = -1;

/* FIX ME */
	/*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/

	return hs;
}


/*
 * The LPFC driver treats linkdown handling as target loss events so there
 * are no sysfs handlers for link_down_tmo.
 */
static void
lpfc_get_starget_port_id(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	uint32_t did = -1;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			did = ndlp->nlp_DID;
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_port_id(starget) = did;
}

static void
lpfc_get_starget_node_name(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	u64 node_name = 0;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_node_name(starget) = node_name;
}

static void
lpfc_get_starget_port_name(struct scsi_target *starget)
{
	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
	struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
	u64 port_name = 0;
	struct lpfc_nodelist *ndlp = NULL;

	spin_lock_irq(shost->host_lock);
	/* Search the mapped list for this target ID */
	list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
		if (starget->id == ndlp->nlp_sid) {
			port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
			break;
		}
	}
	spin_unlock_irq(shost->host_lock);

	fc_starget_port_name(starget) = port_name;
}

static void
lpfc_get_rport_loss_tmo(struct fc_rport *rport)
{
	/*
	 * Return the driver's global value for device loss timeout plus
	 * five seconds to allow the driver's nodev timer to run.
	 */
	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
}

static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	/*
	 * The driver doesn't have a per-target timeout setting.  Set
	 * this value globally. lpfc_nodev_tmo should be greater then 0.
	 */
	if (timeout)
		lpfc_nodev_tmo = timeout;
	else
		lpfc_nodev_tmo = 1;
	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
}


#define lpfc_rport_show_function(field, format_string, sz, cast)	\
static ssize_t								\
lpfc_show_rport_##field (struct class_device *cdev, char *buf)		\
{									\
	struct fc_rport *rport = transport_class_to_rport(cdev);	\
	struct lpfc_rport_data *rdata = rport->hostdata;		\
	return snprintf(buf, sz, format_string,				\
		(rdata->target) ? cast rdata->target->field : 0);	\
}

#define lpfc_rport_rd_attr(field, format_string, sz)			\
	lpfc_rport_show_function(field, format_string, sz, )		\
static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)


struct fc_function_template lpfc_transport_functions = {
	/* fixed attributes the driver supports */
	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,
	.show_host_supported_fc4s = 1,
	.show_host_symbolic_name = 1,
	.show_host_supported_speeds = 1,
	.show_host_maxframe_size = 1,

	/* dynamic attributes the driver supports */
	.get_host_port_id = lpfc_get_host_port_id,
	.show_host_port_id = 1,

	.get_host_port_type = lpfc_get_host_port_type,
	.show_host_port_type = 1,

	.get_host_port_state = lpfc_get_host_port_state,
	.show_host_port_state = 1,

	/* active_fc4s is shown but doesn't change (thus no get function) */
	.show_host_active_fc4s = 1,

	.get_host_speed = lpfc_get_host_speed,
	.show_host_speed = 1,

	.get_host_fabric_name = lpfc_get_host_fabric_name,
	.show_host_fabric_name = 1,

	/*
	 * The LPFC driver treats linkdown handling as target loss events
	 * so there are no sysfs handlers for link_down_tmo.
	 */

	.get_fc_host_stats = lpfc_get_stats,

	/* the LPFC driver doesn't support resetting stats yet */

	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
	.show_rport_maxframe_size = 1,
	.show_rport_supported_classes = 1,

	.get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

	.get_starget_port_id  = lpfc_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_starget_node_name = lpfc_get_starget_node_name,
	.show_starget_node_name = 1,

	.get_starget_port_name = lpfc_get_starget_port_name,
	.show_starget_port_name = 1,

	.issue_fc_host_lip = lpfc_issue_lip,
};

void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
	lpfc_log_verbose_init(phba, lpfc_log_verbose);
	lpfc_cr_delay_init(phba, lpfc_cr_delay);
	lpfc_cr_count_init(phba, lpfc_cr_count);
	lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
	lpfc_fcp_class_init(phba, lpfc_fcp_class);
	lpfc_use_adisc_init(phba, lpfc_use_adisc);
	lpfc_ack0_init(phba, lpfc_ack0);
	lpfc_topology_init(phba, lpfc_topology);
	lpfc_scan_down_init(phba, lpfc_scan_down);
	lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
	lpfc_link_speed_init(phba, lpfc_link_speed);
	lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
	lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
	lpfc_max_luns_init(phba, lpfc_max_luns);

	/*
	 * The total number of segments is the configuration value plus 2
	 * since the IOCB need a command and response bde.
	 */
	phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;

	/*
	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
	 * used to create the sg_dma_buf_pool must be dynamically calculated
	 */
	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) +
			(phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));

	switch (phba->pcidev->device) {
	case PCI_DEVICE_ID_LP101:
	case PCI_DEVICE_ID_BSMB:
	case PCI_DEVICE_ID_ZSMB:
		phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
		break;
	case PCI_DEVICE_ID_RFLY:
	case PCI_DEVICE_ID_PFLY:
	case PCI_DEVICE_ID_BMID:
	case PCI_DEVICE_ID_ZMID:
	case PCI_DEVICE_ID_TFLY:
		phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
		break;
	default:
		phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
	}
	return;
}