scsi: elx: libefc: SLI and FC PORT state machine interfaces (fcd42730) · Commits · EulixOS / Software / Kernel

drivers/scsi/elx/libefc/efc_nport.c

0 → 100644

+777 −0

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		// SPDX-License-Identifier: GPL-2.0
		/*
		* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
		* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
		*/

		/*
		* NPORT
		*
		* Port object for physical port and NPIV ports.
		*/

		/*
		* NPORT REFERENCE COUNTING
		*
		* A nport reference should be taken when:
		* - an nport is allocated
		* - a vport populates associated nport
		* - a remote node is allocated
		* - a unsolicited frame is processed
		* The reference should be dropped when:
		* - the unsolicited frame processesing is done
		* - the remote node is removed
		* - the vport is removed
		* - the nport is removed
		*/

		#include "efc.h"

		void
		efc_nport_cb(void arg, int event, void data)
		{
		struct efc *efc = arg;
		struct efc_nport *nport = data;
		unsigned long flags = 0;

		efc_log_debug(efc, "nport event: %s\n", efc_sm_event_name(event));

		spin_lock_irqsave(&efc->lock, flags);
		efc_sm_post_event(&nport->sm, event, NULL);
		spin_unlock_irqrestore(&efc->lock, flags);
		}

		static struct efc_nport *
		efc_nport_find_wwn(struct efc_domain *domain, uint64_t wwnn, uint64_t wwpn)
		{
		struct efc_nport *nport = NULL;

		/* Find a nport, given the WWNN and WWPN */
		list_for_each_entry(nport, &domain->nport_list, list_entry) {
		if (nport->wwnn == wwnn && nport->wwpn == wwpn)
		return nport;
		}
		return NULL;
		}

		static void
		_efc_nport_free(struct kref *arg)
		{
		struct efc_nport *nport = container_of(arg, struct efc_nport, ref);

		kfree(nport);
		}

		struct efc_nport *
		efc_nport_alloc(struct efc_domain *domain, uint64_t wwpn, uint64_t wwnn,
		u32 fc_id, bool enable_ini, bool enable_tgt)
		{
		struct efc_nport *nport;

		if (domain->efc->enable_ini)
		enable_ini = 0;

		/* Return a failure if this nport has already been allocated */
		if ((wwpn != 0) \|\| (wwnn != 0)) {
		nport = efc_nport_find_wwn(domain, wwnn, wwpn);
		if (nport) {
		efc_log_err(domain->efc,
		"NPORT %016llX %016llX already allocated\n",
		wwnn, wwpn);
		return NULL;
		}
		}

		nport = kzalloc(sizeof(*nport), GFP_ATOMIC);
		if (!nport)
		return nport;

		/* initialize refcount */
		kref_init(&nport->ref);
		nport->release = _efc_nport_free;

		nport->efc = domain->efc;
		snprintf(nport->display_name, sizeof(nport->display_name), "------");
		nport->domain = domain;
		xa_init(&nport->lookup);
		nport->instance_index = domain->nport_count++;
		nport->sm.app = nport;
		nport->enable_ini = enable_ini;
		nport->enable_tgt = enable_tgt;
		nport->enable_rscn = (nport->enable_ini \|\|
		(nport->enable_tgt && enable_target_rscn(nport->efc)));

		/* Copy service parameters from domain */
		memcpy(nport->service_params, domain->service_params,
		sizeof(struct fc_els_flogi));

		/* Update requested fc_id */
		nport->fc_id = fc_id;

		/* Update the nport's service parameters for the new wwn's */
		nport->wwpn = wwpn;
		nport->wwnn = wwnn;
		snprintf(nport->wwnn_str, sizeof(nport->wwnn_str), "%016llX",
		(unsigned long long)wwnn);

		/*
		* if this is the "first" nport of the domain,
		* then make it the "phys" nport
		*/
		if (list_empty(&domain->nport_list))
		domain->nport = nport;

		INIT_LIST_HEAD(&nport->list_entry);
		list_add_tail(&nport->list_entry, &domain->nport_list);

		kref_get(&domain->ref);

		efc_log_debug(domain->efc, "New Nport [%s]\n", nport->display_name);

		return nport;
		}

		void
		efc_nport_free(struct efc_nport *nport)
		{
		struct efc_domain *domain;

		if (!nport)
		return;

		domain = nport->domain;
		efc_log_debug(domain->efc, "[%s] free nport\n", nport->display_name);
		list_del(&nport->list_entry);
		/*
		* if this is the physical nport,
		* then clear it out of the domain
		*/
		if (nport == domain->nport)
		domain->nport = NULL;

		xa_destroy(&nport->lookup);
		xa_erase(&domain->lookup, nport->fc_id);

		if (list_empty(&domain->nport_list))
		efc_domain_post_event(domain, EFC_EVT_ALL_CHILD_NODES_FREE,
		NULL);

		kref_put(&domain->ref, domain->release);
		kref_put(&nport->ref, nport->release);
		}

		struct efc_nport *
		efc_nport_find(struct efc_domain *domain, u32 d_id)
		{
		struct efc_nport *nport;

		/* Find a nport object, given an FC_ID */
		nport = xa_load(&domain->lookup, d_id);
		if (!nport \|\| !kref_get_unless_zero(&nport->ref))
		return NULL;

		return nport;
		}

		int
		efc_nport_attach(struct efc_nport *nport, u32 fc_id)
		{
		int rc;
		struct efc_node *node;
		struct efc *efc = nport->efc;
		unsigned long index;

		/* Set our lookup */
		rc = xa_err(xa_store(&nport->domain->lookup, fc_id, nport, GFP_ATOMIC));
		if (rc) {
		efc_log_err(efc, "Sport lookup store failed: %d\n", rc);
		return rc;
		}

		/* Update our display_name */
		efc_node_fcid_display(fc_id, nport->display_name,
		sizeof(nport->display_name));

		xa_for_each(&nport->lookup, index, node) {
		efc_node_update_display_name(node);
		}

		efc_log_debug(nport->efc, "[%s] attach nport: fc_id x%06x\n",
		nport->display_name, fc_id);

		/* Register a nport, given an FC_ID */
		rc = efc_cmd_nport_attach(efc, nport, fc_id);
		if (rc < 0) {
		efc_log_err(nport->efc,
		"efc_hw_port_attach failed: %d\n", rc);
		return -EIO;
		}
		return 0;
		}

		static void
		efc_nport_shutdown(struct efc_nport *nport)
		{
		struct efc *efc = nport->efc;
		struct efc_node *node;
		unsigned long index;

		xa_for_each(&nport->lookup, index, node) {
		if (!(node->rnode.fc_id == FC_FID_FLOGI && nport->is_vport)) {
		efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
		continue;
		}

		/*
		* If this is a vport, logout of the fabric
		* controller so that it deletes the vport
		* on the switch.
		*/
		/* if link is down, don't send logo */
		if (efc->link_status == EFC_LINK_STATUS_DOWN) {
		efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
		continue;
		}

		efc_log_debug(efc, "[%s] nport shutdown vport, send logo\n",
		node->display_name);

		if (!efc_send_logo(node)) {
		/* sent LOGO, wait for response */
		efc_node_transition(node, __efc_d_wait_logo_rsp, NULL);
		continue;
		}

		/*
		* failed to send LOGO,
		* go ahead and cleanup node anyways
		*/
		node_printf(node, "Failed to send LOGO\n");
		efc_node_post_event(node, EFC_EVT_SHUTDOWN_EXPLICIT_LOGO, NULL);
		}
		}

		static void
		efc_vport_link_down(struct efc_nport *nport)
		{
		struct efc *efc = nport->efc;
		struct efc_vport *vport;

		/* Clear the nport reference in the vport specification */
		list_for_each_entry(vport, &efc->vport_list, list_entry) {
		if (vport->nport == nport) {
		kref_put(&nport->ref, nport->release);
		vport->nport = NULL;
		break;
		}
		}
		}

		static void
		__efc_nport_common(const char funcname, struct efc_sm_ctx ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc_domain *domain = nport->domain;
		struct efc *efc = nport->efc;

		switch (evt) {
		case EFC_EVT_ENTER:
		case EFC_EVT_REENTER:
		case EFC_EVT_EXIT:
		case EFC_EVT_ALL_CHILD_NODES_FREE:
		break;
		case EFC_EVT_NPORT_ATTACH_OK:
		efc_sm_transition(ctx, __efc_nport_attached, NULL);
		break;
		case EFC_EVT_SHUTDOWN:
		/* Flag this nport as shutting down */
		nport->shutting_down = true;

		if (nport->is_vport)
		efc_vport_link_down(nport);

		if (xa_empty(&nport->lookup)) {
		/* Remove the nport from the domain's lookup table */
		xa_erase(&domain->lookup, nport->fc_id);
		efc_sm_transition(ctx, __efc_nport_wait_port_free,
		NULL);
		if (efc_cmd_nport_free(efc, nport)) {
		efc_log_debug(nport->efc,
		"efc_hw_port_free failed\n");
		/* Not much we can do, free the nport anyways */
		efc_nport_free(nport);
		}
		} else {
		/* sm: node list is not empty / shutdown nodes */
		efc_sm_transition(ctx,
		__efc_nport_wait_shutdown, NULL);
		efc_nport_shutdown(nport);
		}
		break;
		default:
		efc_log_debug(nport->efc, "[%s] %-20s %-20s not handled\n",
		nport->display_name, funcname,
		efc_sm_event_name(evt));
		}
		}

		void
		__efc_nport_allocated(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc_domain *domain = nport->domain;

		nport_sm_trace(nport);

		switch (evt) {
		/* the physical nport is attached */
		case EFC_EVT_NPORT_ATTACH_OK:
		WARN_ON(nport != domain->nport);
		efc_sm_transition(ctx, __efc_nport_attached, NULL);
		break;

		case EFC_EVT_NPORT_ALLOC_OK:
		/* ignore */
		break;
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		void
		__efc_nport_vport_init(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc *efc = nport->efc;

		nport_sm_trace(nport);

		switch (evt) {
		case EFC_EVT_ENTER: {
		__be64 be_wwpn = cpu_to_be64(nport->wwpn);

		if (nport->wwpn == 0)
		efc_log_debug(efc, "vport: letting f/w select WWN\n");

		if (nport->fc_id != U32_MAX) {
		efc_log_debug(efc, "vport: hard coding port id: %x\n",
		nport->fc_id);
		}

		efc_sm_transition(ctx, __efc_nport_vport_wait_alloc, NULL);
		/* If wwpn is zero, then we'll let the f/w assign wwpn*/
		if (efc_cmd_nport_alloc(efc, nport, nport->domain,
		nport->wwpn == 0 ? NULL :
		(uint8_t *)&be_wwpn)) {
		efc_log_err(efc, "Can't allocate port\n");
		break;
		}

		break;
		}
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		void
		__efc_nport_vport_wait_alloc(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc *efc = nport->efc;

		nport_sm_trace(nport);

		switch (evt) {
		case EFC_EVT_NPORT_ALLOC_OK: {
		struct fc_els_flogi *sp;

		sp = (struct fc_els_flogi *)nport->service_params;

		if (nport->wwnn == 0) {
		nport->wwnn = be64_to_cpu(nport->sli_wwnn);
		nport->wwpn = be64_to_cpu(nport->sli_wwpn);
		snprintf(nport->wwnn_str, sizeof(nport->wwnn_str),
		"%016llX", nport->wwpn);
		}

		/* Update the nport's service parameters */
		sp->fl_wwpn = cpu_to_be64(nport->wwpn);
		sp->fl_wwnn = cpu_to_be64(nport->wwnn);

		/*
		* if nport->fc_id is uninitialized,
		* then request that the fabric node use FDISC
		* to find an fc_id.
		* Otherwise we're restoring vports, or we're in
		* fabric emulation mode, so attach the fc_id
		*/
		if (nport->fc_id == U32_MAX) {
		struct efc_node *fabric;

		fabric = efc_node_alloc(nport, FC_FID_FLOGI, false,
		false);
		if (!fabric) {
		efc_log_err(efc, "efc_node_alloc() failed\n");
		return;
		}
		efc_node_transition(fabric, __efc_vport_fabric_init,
		NULL);
		} else {
		snprintf(nport->wwnn_str, sizeof(nport->wwnn_str),
		"%016llX", nport->wwpn);
		efc_nport_attach(nport, nport->fc_id);
		}
		efc_sm_transition(ctx, __efc_nport_vport_allocated, NULL);
		break;
		}
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		void
		__efc_nport_vport_allocated(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc *efc = nport->efc;

		nport_sm_trace(nport);

		/*
		* This state is entered after the nport is allocated;
		* it then waits for a fabric node
		* FDISC to complete, which requests a nport attach.
		* The nport attach complete is handled in this state.
		*/
		switch (evt) {
		case EFC_EVT_NPORT_ATTACH_OK: {
		struct efc_node *node;

		/* Find our fabric node, and forward this event */
		node = efc_node_find(nport, FC_FID_FLOGI);
		if (!node) {
		efc_log_debug(efc, "can't find node %06x\n", FC_FID_FLOGI);
		break;
		}
		/* sm: / forward nport attach to fabric node */
		efc_node_post_event(node, evt, NULL);
		efc_sm_transition(ctx, __efc_nport_attached, NULL);
		break;
		}
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		static void
		efc_vport_update_spec(struct efc_nport *nport)
		{
		struct efc *efc = nport->efc;
		struct efc_vport *vport;
		unsigned long flags = 0;

		spin_lock_irqsave(&efc->vport_lock, flags);
		list_for_each_entry(vport, &efc->vport_list, list_entry) {
		if (vport->nport == nport) {
		vport->wwnn = nport->wwnn;
		vport->wwpn = nport->wwpn;
		vport->tgt_data = nport->tgt_data;
		vport->ini_data = nport->ini_data;
		break;
		}
		}
		spin_unlock_irqrestore(&efc->vport_lock, flags);
		}

		void
		__efc_nport_attached(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc *efc = nport->efc;

		nport_sm_trace(nport);

		switch (evt) {
		case EFC_EVT_ENTER: {
		struct efc_node *node;
		unsigned long index;

		efc_log_debug(efc,
		"[%s] NPORT attached WWPN %016llX WWNN %016llX\n",
		nport->display_name,
		nport->wwpn, nport->wwnn);

		xa_for_each(&nport->lookup, index, node)
		efc_node_update_display_name(node);

		efc->tt.new_nport(efc, nport);

		/*
		* Update the vport (if its not the physical nport)
		* parameters
		*/
		if (nport->is_vport)
		efc_vport_update_spec(nport);
		break;
		}

		case EFC_EVT_EXIT:
		efc_log_debug(efc,
		"[%s] NPORT deattached WWPN %016llX WWNN %016llX\n",
		nport->display_name,
		nport->wwpn, nport->wwnn);

		efc->tt.del_nport(efc, nport);
		break;
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		void
		__efc_nport_wait_shutdown(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;
		struct efc_domain *domain = nport->domain;
		struct efc *efc = nport->efc;

		nport_sm_trace(nport);

		switch (evt) {
		case EFC_EVT_NPORT_ALLOC_OK:
		case EFC_EVT_NPORT_ALLOC_FAIL:
		case EFC_EVT_NPORT_ATTACH_OK:
		case EFC_EVT_NPORT_ATTACH_FAIL:
		/* ignore these events - just wait for the all free event */
		break;

		case EFC_EVT_ALL_CHILD_NODES_FREE: {
		/*
		* Remove the nport from the domain's
		* sparse vector lookup table
		*/
		xa_erase(&domain->lookup, nport->fc_id);
		efc_sm_transition(ctx, __efc_nport_wait_port_free, NULL);
		if (efc_cmd_nport_free(efc, nport)) {
		efc_log_err(nport->efc, "efc_hw_port_free failed\n");
		/* Not much we can do, free the nport anyways */
		efc_nport_free(nport);
		}
		break;
		}
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		void
		__efc_nport_wait_port_free(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg)
		{
		struct efc_nport *nport = ctx->app;

		nport_sm_trace(nport);

		switch (evt) {
		case EFC_EVT_NPORT_ATTACH_OK:
		/* Ignore as we are waiting for the free CB */
		break;
		case EFC_EVT_NPORT_FREE_OK: {
		/* All done, free myself */
		efc_nport_free(nport);
		break;
		}
		default:
		__efc_nport_common(__func__, ctx, evt, arg);
		}
		}

		static int
		efc_vport_nport_alloc(struct efc_domain domain, struct efc_vport vport)
		{
		struct efc_nport *nport;

		lockdep_assert_held(&domain->efc->lock);

		nport = efc_nport_alloc(domain, vport->wwpn, vport->wwnn, vport->fc_id,
		vport->enable_ini, vport->enable_tgt);
		vport->nport = nport;
		if (!nport)
		return -EIO;

		kref_get(&nport->ref);
		nport->is_vport = true;
		nport->tgt_data = vport->tgt_data;
		nport->ini_data = vport->ini_data;

		efc_sm_transition(&nport->sm, __efc_nport_vport_init, NULL);

		return 0;
		}

		int
		efc_vport_start(struct efc_domain *domain)
		{
		struct efc *efc = domain->efc;
		struct efc_vport *vport;
		struct efc_vport *next;
		int rc = 0;
		unsigned long flags = 0;

		/* Use the vport spec to find the associated vports and start them */
		spin_lock_irqsave(&efc->vport_lock, flags);
		list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
		if (!vport->nport) {
		if (efc_vport_nport_alloc(domain, vport))
		rc = -EIO;
		}
		}
		spin_unlock_irqrestore(&efc->vport_lock, flags);

		return rc;
		}

		int
		efc_nport_vport_new(struct efc_domain *domain, uint64_t wwpn, uint64_t wwnn,
		u32 fc_id, bool ini, bool tgt, void *tgt_data,
		void *ini_data)
		{
		struct efc *efc = domain->efc;
		struct efc_vport *vport;
		int rc = 0;
		unsigned long flags = 0;

		if (ini && domain->efc->enable_ini == 0) {
		efc_log_debug(efc, "driver initiator mode not enabled\n");
		return -EIO;
		}

		if (tgt && domain->efc->enable_tgt == 0) {
		efc_log_debug(efc, "driver target mode not enabled\n");
		return -EIO;
		}

		/*
		* Create a vport spec if we need to recreate
		* this vport after a link up event
		*/
		vport = efc_vport_create_spec(domain->efc, wwnn, wwpn, fc_id, ini, tgt,
		tgt_data, ini_data);
		if (!vport) {
		efc_log_err(efc, "failed to create vport object entry\n");
		return -EIO;
		}

		spin_lock_irqsave(&efc->lock, flags);
		rc = efc_vport_nport_alloc(domain, vport);
		spin_unlock_irqrestore(&efc->lock, flags);

		return rc;
		}

		int
		efc_nport_vport_del(struct efc efc, struct efc_domain domain,
		u64 wwpn, uint64_t wwnn)
		{
		struct efc_nport *nport;
		struct efc_vport *vport;
		struct efc_vport *next;
		unsigned long flags = 0;

		spin_lock_irqsave(&efc->vport_lock, flags);
		/* walk the efc_vport_list and remove from there */
		list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
		if (vport->wwpn == wwpn && vport->wwnn == wwnn) {
		list_del(&vport->list_entry);
		kfree(vport);
		break;
		}
		}
		spin_unlock_irqrestore(&efc->vport_lock, flags);

		if (!domain) {
		/* No domain means no nport to look for */
		return 0;
		}

		spin_lock_irqsave(&efc->lock, flags);
		list_for_each_entry(nport, &domain->nport_list, list_entry) {
		if (nport->wwpn == wwpn && nport->wwnn == wwnn) {
		kref_put(&nport->ref, nport->release);
		/* Shutdown this NPORT */
		efc_sm_post_event(&nport->sm, EFC_EVT_SHUTDOWN, NULL);
		break;
		}
		}

		spin_unlock_irqrestore(&efc->lock, flags);
		return 0;
		}

		void
		efc_vport_del_all(struct efc *efc)
		{
		struct efc_vport *vport;
		struct efc_vport *next;
		unsigned long flags = 0;

		spin_lock_irqsave(&efc->vport_lock, flags);
		list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
		list_del(&vport->list_entry);
		kfree(vport);
		}
		spin_unlock_irqrestore(&efc->vport_lock, flags);
		}

		struct efc_vport *
		efc_vport_create_spec(struct efc *efc, uint64_t wwnn, uint64_t wwpn,
		u32 fc_id, bool enable_ini,
		bool enable_tgt, void tgt_data, void ini_data)
		{
		struct efc_vport *vport;
		unsigned long flags = 0;

		/*
		* walk the efc_vport_list and return failure
		* if a valid(vport with non zero WWPN and WWNN) vport entry
		* is already created
		*/
		spin_lock_irqsave(&efc->vport_lock, flags);
		list_for_each_entry(vport, &efc->vport_list, list_entry) {
		if ((wwpn && vport->wwpn == wwpn) &&
		(wwnn && vport->wwnn == wwnn)) {
		efc_log_err(efc,
		"VPORT %016llX %016llX already allocated\n",
		wwnn, wwpn);
		spin_unlock_irqrestore(&efc->vport_lock, flags);
		return NULL;
		}
		}

		vport = kzalloc(sizeof(*vport), GFP_ATOMIC);
		if (!vport) {
		spin_unlock_irqrestore(&efc->vport_lock, flags);
		return NULL;
		}

		vport->wwnn = wwnn;
		vport->wwpn = wwpn;
		vport->fc_id = fc_id;
		vport->enable_tgt = enable_tgt;
		vport->enable_ini = enable_ini;
		vport->tgt_data = tgt_data;
		vport->ini_data = ini_data;

		INIT_LIST_HEAD(&vport->list_entry);
		list_add_tail(&vport->list_entry, &efc->vport_list);
		spin_unlock_irqrestore(&efc->vport_lock, flags);
		return vport;
		}

drivers/scsi/elx/libefc/efc_nport.h

0 → 100644

+50 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0 */
		/*
		* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
		* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
		*/

		/**
		* EFC FC port (NPORT) exported declarations
		*
		*/

		#ifndef __EFC_NPORT_H__
		#define __EFC_NPORT_H__

		struct efc_nport *
		efc_nport_find(struct efc_domain *domain, u32 d_id);
		struct efc_nport *
		efc_nport_alloc(struct efc_domain *domain, uint64_t wwpn, uint64_t wwnn,
		u32 fc_id, bool enable_ini, bool enable_tgt);
		void
		efc_nport_free(struct efc_nport *nport);
		int
		efc_nport_attach(struct efc_nport *nport, u32 fc_id);

		void
		__efc_nport_allocated(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_wait_shutdown(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_wait_port_free(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_vport_init(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_vport_wait_alloc(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_vport_allocated(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);
		void
		__efc_nport_attached(struct efc_sm_ctx *ctx,
		enum efc_sm_event evt, void *arg);

		int
		efc_vport_start(struct efc_domain *domain);

		#endif /* __EFC_NPORT_H__ */