qla_attr.c

来自「linux 内核源代码」· C语言 代码 · 共 1,253 行 · 第 1/3 页

{
	scsi_qla_host_t *ha = shost_priv(shost);
	uint32_t speed = 0;

	switch (ha->link_data_rate) {
	case PORT_SPEED_1GB:
		speed = 1;
		break;
	case PORT_SPEED_2GB:
		speed = 2;
		break;
	case PORT_SPEED_4GB:
		speed = 4;
		break;
	}
	fc_host_speed(shost) = speed;
}

static void
qla2x00_get_host_port_type(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);
	uint32_t port_type = FC_PORTTYPE_UNKNOWN;

	switch (ha->current_topology) {
	case ISP_CFG_NL:
		port_type = FC_PORTTYPE_LPORT;
		break;
	case ISP_CFG_FL:
		port_type = FC_PORTTYPE_NLPORT;
		break;
	case ISP_CFG_N:
		port_type = FC_PORTTYPE_PTP;
		break;
	case ISP_CFG_F:
		port_type = FC_PORTTYPE_NPORT;
		break;
	}
	fc_host_port_type(shost) = port_type;
}

static void
qla2x00_get_starget_node_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = shost_priv(host);
	fc_port_t *fcport;
	u64 node_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			node_name = wwn_to_u64(fcport->node_name);
			break;
		}
	}

	fc_starget_node_name(starget) = node_name;
}

static void
qla2x00_get_starget_port_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = shost_priv(host);
	fc_port_t *fcport;
	u64 port_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_name = wwn_to_u64(fcport->port_name);
			break;
		}
	}

	fc_starget_port_name(starget) = port_name;
}

static void
qla2x00_get_starget_port_id(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = shost_priv(host);
	fc_port_t *fcport;
	uint32_t port_id = ~0U;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_id = fcport->d_id.b.domain << 16 |
			    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
			break;
		}
	}

	fc_starget_port_id(starget) = port_id;
}

static void
qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = shost_priv(host);

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

static void
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = shost_priv(host);

	if (timeout)
		ha->port_down_retry_count = timeout;
	else
		ha->port_down_retry_count = 1;

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

static int
qla2x00_issue_lip(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);

	set_bit(LOOP_RESET_NEEDED, &ha->dpc_flags);
	return 0;
}

static struct fc_host_statistics *
qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);
	int rval;
	uint16_t mb_stat[1];
	link_stat_t stat_buf;
	struct fc_host_statistics *pfc_host_stat;

	rval = QLA_FUNCTION_FAILED;
	pfc_host_stat = &ha->fc_host_stat;
	memset(pfc_host_stat, -1, sizeof(struct fc_host_statistics));

	if (IS_FWI2_CAPABLE(ha)) {
		rval = qla24xx_get_isp_stats(ha, (uint32_t *)&stat_buf,
		    sizeof(stat_buf) / 4, mb_stat);
	} else if (atomic_read(&ha->loop_state) == LOOP_READY &&
		    !test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) &&
		    !test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) &&
		    !ha->dpc_active) {
		/* Must be in a 'READY' state for statistics retrieval. */
		rval = qla2x00_get_link_status(ha, ha->loop_id, &stat_buf,
		    mb_stat);
	}

	if (rval != QLA_SUCCESS)
		goto done;

	pfc_host_stat->link_failure_count = stat_buf.link_fail_cnt;
	pfc_host_stat->loss_of_sync_count = stat_buf.loss_sync_cnt;
	pfc_host_stat->loss_of_signal_count = stat_buf.loss_sig_cnt;
	pfc_host_stat->prim_seq_protocol_err_count = stat_buf.prim_seq_err_cnt;
	pfc_host_stat->invalid_tx_word_count = stat_buf.inval_xmit_word_cnt;
	pfc_host_stat->invalid_crc_count = stat_buf.inval_crc_cnt;
done:
	return pfc_host_stat;
}

static void
qla2x00_get_host_symbolic_name(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);

	qla2x00_get_sym_node_name(ha, fc_host_symbolic_name(shost));
}

static void
qla2x00_set_host_system_hostname(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);

	set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
}

static void
qla2x00_get_host_fabric_name(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);
	u64 node_name;

	if (ha->device_flags & SWITCH_FOUND)
		node_name = wwn_to_u64(ha->fabric_node_name);
	else
		node_name = wwn_to_u64(ha->node_name);

	fc_host_fabric_name(shost) = node_name;
}

static void
qla2x00_get_host_port_state(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = shost_priv(shost);

	if (!ha->flags.online)
		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
	else if (atomic_read(&ha->loop_state) == LOOP_TIMEOUT)
		fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
	else
		fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
}

static int
qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
{
	int	ret = 0;
	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
	scsi_qla_host_t *vha;

	ret = qla24xx_vport_create_req_sanity_check(fc_vport);
	if (ret) {
		DEBUG15(printk("qla24xx_vport_create_req_sanity_check failed, "
		    "status %x\n", ret));
		return (ret);
	}

	vha = qla24xx_create_vhost(fc_vport);
	if (vha == NULL) {
		DEBUG15(printk ("qla24xx_create_vhost failed, vha = %p\n",
		    vha));
		return FC_VPORT_FAILED;
	}
	if (disable) {
		atomic_set(&vha->vp_state, VP_OFFLINE);
		fc_vport_set_state(fc_vport, FC_VPORT_DISABLED);
	} else
		atomic_set(&vha->vp_state, VP_FAILED);

	/* ready to create vport */
	qla_printk(KERN_INFO, vha, "VP entry id %d assigned.\n", vha->vp_idx);

	/* initialized vport states */
	atomic_set(&vha->loop_state, LOOP_DOWN);
	vha->vp_err_state=  VP_ERR_PORTDWN;
	vha->vp_prev_err_state=  VP_ERR_UNKWN;
	/* Check if physical ha port is Up */
	if (atomic_read(&ha->loop_state) == LOOP_DOWN ||
	    atomic_read(&ha->loop_state) == LOOP_DEAD) {
		/* Don't retry or attempt login of this virtual port */
		DEBUG15(printk ("scsi(%ld): pport loop_state is not UP.\n",
		    vha->host_no));
		atomic_set(&vha->loop_state, LOOP_DEAD);
		if (!disable)
			fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN);
	}

	if (scsi_add_host(vha->host, &fc_vport->dev)) {
		DEBUG15(printk("scsi(%ld): scsi_add_host failure for VP[%d].\n",
			vha->host_no, vha->vp_idx));
		goto vport_create_failed_2;
	}

	/* initialize attributes */
	fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
	fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
	fc_host_supported_classes(vha->host) =
		fc_host_supported_classes(ha->host);
	fc_host_supported_speeds(vha->host) =
		fc_host_supported_speeds(ha->host);

	qla24xx_vport_disable(fc_vport, disable);

	return 0;
vport_create_failed_2:
	qla24xx_disable_vp(vha);
	qla24xx_deallocate_vp_id(vha);
	kfree(vha->port_name);
	kfree(vha->node_name);
	scsi_host_put(vha->host);
	return FC_VPORT_FAILED;
}

int
qla24xx_vport_delete(struct fc_vport *fc_vport)
{
	scsi_qla_host_t *ha = shost_priv(fc_vport->shost);
	scsi_qla_host_t *vha = fc_vport->dd_data;

	qla24xx_disable_vp(vha);
	qla24xx_deallocate_vp_id(vha);

	down(&ha->vport_sem);
	ha->cur_vport_count--;
	clear_bit(vha->vp_idx, (unsigned long *)ha->vp_idx_map);
	up(&ha->vport_sem);

	kfree(vha->node_name);
	kfree(vha->port_name);

	if (vha->timer_active) {
		qla2x00_vp_stop_timer(vha);
		DEBUG15(printk ("scsi(%ld): timer for the vport[%d] = %p "
		    "has stopped\n",
		    vha->host_no, vha->vp_idx, vha));
        }

	fc_remove_host(vha->host);

	scsi_remove_host(vha->host);

	scsi_host_put(vha->host);

	return 0;
}

int
qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
{
	scsi_qla_host_t *vha = fc_vport->dd_data;

	if (disable)
		qla24xx_disable_vp(vha);
	else
		qla24xx_enable_vp(vha);

	return 0;
}

struct fc_function_template qla2xxx_transport_functions = {

	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,

	.get_host_port_id = qla2x00_get_host_port_id,
	.show_host_port_id = 1,
	.get_host_speed = qla2x00_get_host_speed,
	.show_host_speed = 1,
	.get_host_port_type = qla2x00_get_host_port_type,
	.show_host_port_type = 1,
	.get_host_symbolic_name = qla2x00_get_host_symbolic_name,
	.show_host_symbolic_name = 1,
	.set_host_system_hostname = qla2x00_set_host_system_hostname,
	.show_host_system_hostname = 1,
	.get_host_fabric_name = qla2x00_get_host_fabric_name,
	.show_host_fabric_name = 1,
	.get_host_port_state = qla2x00_get_host_port_state,
	.show_host_port_state = 1,

	.dd_fcrport_size = sizeof(struct fc_port *),
	.show_rport_supported_classes = 1,

	.get_starget_node_name = qla2x00_get_starget_node_name,
	.show_starget_node_name = 1,
	.get_starget_port_name = qla2x00_get_starget_port_name,
	.show_starget_port_name = 1,
	.get_starget_port_id  = qla2x00_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

	.issue_fc_host_lip = qla2x00_issue_lip,
	.get_fc_host_stats = qla2x00_get_fc_host_stats,

	.vport_create = qla24xx_vport_create,
	.vport_disable = qla24xx_vport_disable,
	.vport_delete = qla24xx_vport_delete,
};

struct fc_function_template qla2xxx_transport_vport_functions = {

	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,

	.get_host_port_id = qla2x00_get_host_port_id,
	.show_host_port_id = 1,
	.get_host_speed = qla2x00_get_host_speed,
	.show_host_speed = 1,
	.get_host_port_type = qla2x00_get_host_port_type,
	.show_host_port_type = 1,
	.get_host_symbolic_name = qla2x00_get_host_symbolic_name,
	.show_host_symbolic_name = 1,
	.set_host_system_hostname = qla2x00_set_host_system_hostname,
	.show_host_system_hostname = 1,
	.get_host_fabric_name = qla2x00_get_host_fabric_name,
	.show_host_fabric_name = 1,
	.get_host_port_state = qla2x00_get_host_port_state,
	.show_host_port_state = 1,

	.dd_fcrport_size = sizeof(struct fc_port *),
	.show_rport_supported_classes = 1,

	.get_starget_node_name = qla2x00_get_starget_node_name,
	.show_starget_node_name = 1,
	.get_starget_port_name = qla2x00_get_starget_port_name,
	.show_starget_port_name = 1,
	.get_starget_port_id  = qla2x00_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

	.issue_fc_host_lip = qla2x00_issue_lip,
	.get_fc_host_stats = qla2x00_get_fc_host_stats,
};

void
qla2x00_init_host_attr(scsi_qla_host_t *ha)
{
	fc_host_node_name(ha->host) = wwn_to_u64(ha->node_name);
	fc_host_port_name(ha->host) = wwn_to_u64(ha->port_name);
	fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
	fc_host_max_npiv_vports(ha->host) = ha->max_npiv_vports;;
	fc_host_npiv_vports_inuse(ha->host) = ha->cur_vport_count;
}