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ocs_sport.c
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ocs_sport.c
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/*
* BSD LICENSE
*
* Copyright (c) 2011-2018 Broadcom. All Rights Reserved.
* The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file
* Details SLI port (sport) functions.
*/
#include "ocs.h"
#include "ocs_fabric.h"
#include "ocs_els.h"
#include "ocs_device.h"
#include "ocs_spdk_nvmet.h"
static void ocs_vport_update_spec(ocs_sport_t *sport);
static void ocs_vport_link_down(ocs_sport_t *sport);
void ocs_mgmt_sport_list(ocs_textbuf_t *textbuf, void *sport);
void ocs_mgmt_sport_get_all(ocs_textbuf_t *textbuf, void *sport);
int ocs_mgmt_sport_get(ocs_textbuf_t *textbuf, char *parent, char *name, void *sport);
int ocs_mgmt_sport_set(char *parent, char *name, char *value, void *sport);
int ocs_mgmt_sport_exec(char *parent, char *action, void *arg_in, uint32_t arg_in_length,
void *arg_out, uint32_t arg_out_length, void *sport);
static ocs_mgmt_functions_t sport_mgmt_functions = {
.get_list_handler = ocs_mgmt_sport_list,
.get_handler = ocs_mgmt_sport_get,
.get_all_handler = ocs_mgmt_sport_get_all,
.set_handler = ocs_mgmt_sport_set,
.exec_handler = ocs_mgmt_sport_exec,
};
/*!
@defgroup sport_sm SLI Port (sport) State Machine: States
*/
/**
* @ingroup sport_sm
* @brief SLI port HAL callback.
*
* @par Description
* This function is called in response to a HAL sport event. This code resolves
* the reference to the sport object, and posts the corresponding event.
*
* @param arg Pointer to the OCS context.
* @param event HAL sport event.
* @param data Application-specific event (pointer to the sport).
*
* @return Returns 0 on success, or a negative error value on failure.
*/
int32_t
ocs_port_cb(void *arg, ocs_hal_port_event_e event, void *data)
{
ocs_t *ocs = arg;
ocs_sli_port_t *sport = data;
switch (event) {
case OCS_HAL_PORT_ALLOC_OK:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_ALLOC_OK\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_ALLOC_OK, NULL);
break;
case OCS_HAL_PORT_ALLOC_FAIL:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_ALLOC_FAIL\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_ALLOC_FAIL, NULL);
break;
case OCS_HAL_PORT_ATTACH_OK:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_ATTACH_OK\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_ATTACH_OK, NULL);
break;
case OCS_HAL_PORT_ATTACH_FAIL:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_ATTACH_FAIL\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_ATTACH_FAIL, NULL);
break;
case OCS_HAL_PORT_FREE_OK:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_FREE_OK\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_FREE_OK, NULL);
break;
case OCS_HAL_PORT_FREE_FAIL:
ocs_log_debug(ocs, "%s: OCS_HAL_PORT_FREE_FAIL\n", __func__);
ocs_sm_post_event(&sport->sm, OCS_EVT_SPORT_FREE_FAIL, NULL);
break;
default:
ocs_log_test(ocs, "%s: unknown event %#x\n", __func__, event);
}
return 0;
}
/**
* @ingroup sport_sm
* @brief Allocate a SLI port object.
*
* @par Description
* A sport object is allocated and associated with the domain. Various
* structure members are initialized.
*
* @param domain Pointer to the domain structure.
* @param wwpn World wide port name in host endian.
* @param wwnn World wide node name in host endian.
* @param fc_id Port ID of sport may be specified, use UINT32_MAX to fabric choose
* @param enable_ini Enables initiator capability on this port using a non-zero value.
* @param enable_tgt Enables target capability on this port using a non-zero value.
*
* @return Pointer to an ocs_sport_t object; or NULL.
*/
ocs_sport_t *
ocs_sport_alloc(ocs_domain_t *domain, uint64_t wwpn, uint64_t wwnn, uint32_t fc_id, uint8_t enable_ini, uint8_t enable_tgt)
{
ocs_sport_t *sport;
if (domain->ocs->ctrlmask & OCS_CTRLMASK_INHIBIT_INITIATOR) {
enable_ini = 0;
}
/* Return a failure if this sport has already been allocated */
if (wwpn != 0) {
sport = ocs_sport_find_wwn(domain, wwnn, wwpn);
if (sport != NULL) {
ocs_log_test(domain->ocs, "%s: Failed: SPORT %016" PRIx64 " %016" PRIx64 " already allocated\n",
__func__, wwnn, wwpn);
return NULL;
}
}
sport = ocs_malloc(domain->ocs, sizeof(*sport), OCS_M_NOWAIT | OCS_M_ZERO);
if (sport) {
sport->ocs = domain->ocs;
ocs_snprintf(sport->display_name, sizeof(sport->display_name), "------");
sport->domain = domain;
sport->lookup = spv_new(domain->ocs);
sport->instance_index = domain->sport_instance_count++;
ocs_sport_lock_init(sport);
ocs_list_init(&sport->node_list, ocs_node_t, link);
sport->sm.app = sport;
sport->enable_ini = enable_ini;
sport->enable_tgt = enable_tgt;
sport->enable_rscn = (sport->enable_ini || (sport->enable_tgt && enable_target_rscn(sport->ocs)));
/* Copy service parameters from domain */
ocs_memcpy(sport->service_params, domain->service_params, sizeof(fc_plogi_payload_t));
/* Update requested fc_id */
sport->fc_id = fc_id;
/* Update the sport's service parameters for the new wwn's */
sport->wwpn = wwpn;
sport->wwnn = wwnn;
ocs_snprintf(sport->wwnn_str, sizeof(sport->wwnn_str), "%016" PRIX64, wwnn);
/* Initialize node group list */
ocs_lock_init(sport->ocs, &sport->node_group_lock, "node_group_lock[%d]", sport->instance_index);
ocs_list_init(&sport->node_group_dir_list, ocs_node_group_dir_t, link);
/* if this is the "first" sport of the domain, then make it the "phys" sport */
ocs_domain_lock(domain);
if (ocs_list_empty(&domain->sport_list)) {
domain->sport = sport;
}
ocs_list_add_tail(&domain->sport_list, sport);
ocs_domain_unlock(domain);
sport->mgmt_functions = &sport_mgmt_functions;
ocs_log_debug(domain->ocs, "[%s] allocate sport\n", sport->display_name);
}
return sport;
}
/**
* @ingroup sport_sm
* @brief Free a SLI port object.
*
* @par Description
* The sport object is freed.
*
* @param sport Pointer to the SLI port object.
*
* @return None.
*/
void
ocs_sport_free(ocs_sport_t *sport)
{
ocs_domain_t *domain;
ocs_node_group_dir_t *node_group_dir;
ocs_node_group_dir_t *node_group_dir_next;
int post_all_free = FALSE;
if (sport) {
domain = sport->domain;
ocs_log_debug(domain->ocs, "[%s] free sport\n", sport->display_name);
ocs_domain_lock(domain);
ocs_list_remove(&domain->sport_list, sport);
ocs_sport_lock(sport);
spv_del(sport->lookup);
sport->lookup = NULL;
ocs_lock(&domain->lookup_lock);
/* Remove the sport from the domain's sparse vector lookup table */
spv_set(domain->lookup, sport->fc_id, NULL);
ocs_unlock(&domain->lookup_lock);
/* if this is the physical sport, then clear it out of the domain */
if (sport == domain->sport) {
domain->sport = NULL;
}
/*
* If the domain's sport_list is empty, then post the ALL_NODES_FREE event to the domain,
* after the lock is released. The domain may be free'd as a result of the event.
*/
if (ocs_list_empty(&domain->sport_list)) {
post_all_free = TRUE;
}
/* Free any node group directories */
ocs_lock(&sport->node_group_lock);
ocs_list_foreach_safe(&sport->node_group_dir_list, node_group_dir, node_group_dir_next) {
ocs_unlock(&sport->node_group_lock);
ocs_node_group_dir_free(node_group_dir);
ocs_lock(&sport->node_group_lock);
}
ocs_unlock(&sport->node_group_lock);
ocs_sport_unlock(sport);
ocs_domain_unlock(domain);
if (post_all_free) {
ocs_domain_post_event(domain, OCS_EVT_ALL_CHILD_NODES_FREE, NULL);
}
ocs_sport_lock_free(sport);
ocs_lock_free(&sport->node_group_lock);
ocs_free(domain->ocs, sport, sizeof(*sport));
}
}
/**
* @ingroup sport_sm
* @brief Free memory resources of a SLI port object.
*
* @par Description
* After the sport object is freed, its child objects are freed.
*
* @param sport Pointer to the SLI port object.
*
* @return None.
*/
void ocs_sport_force_free(ocs_sport_t *sport)
{
ocs_node_t *node;
ocs_node_t *next;
/* shutdown sm processing */
ocs_sm_disable(&sport->sm);
ocs_scsi_notify_sport_force_free(sport);
ocs_sport_lock(sport);
ocs_list_foreach_safe(&sport->node_list, node, next) {
ocs_node_force_free(node);
}
ocs_sport_unlock(sport);
ocs_sport_free(sport);
}
/**
* @ingroup sport_sm
* @brief Return a SLI port object, given an instance index.
*
* @par Description
* A pointer to a sport object is returned, given its instance @c index.
*
* @param domain Pointer to the domain.
* @param index Instance index value to find.
*
* @return Returns a pointer to the ocs_sport_t object; or NULL.
*/
ocs_sport_t *
ocs_sport_get_instance(ocs_domain_t *domain, uint32_t index)
{
ocs_sport_t *sport;
ocs_domain_lock(domain);
ocs_list_foreach(&domain->sport_list, sport) {
if (sport->instance_index == index) {
ocs_domain_unlock(domain);
return sport;
}
}
ocs_domain_unlock(domain);
return NULL;
}
/**
* @ingroup sport_sm
* @brief Find a SLI port object, given an FC_ID.
*
* @par Description
* Returns a pointer to the sport object, given an FC_ID.
*
* @param domain Pointer to the domain.
* @param d_id FC_ID to find.
*
* @return Returns a pointer to the ocs_sport_t; or NULL.
*/
ocs_sport_t *
ocs_sport_find(ocs_domain_t *domain, uint32_t d_id)
{
ocs_sport_t *sport;
ocs_assert(domain, NULL);
ocs_lock(&domain->lookup_lock);
if (domain->lookup == NULL) {
ocs_log_test(domain->ocs, "%s(%d): assertion failed: domain->lookup is not valid\n",
__func__, __LINE__);
ocs_unlock(&domain->lookup_lock);
return NULL;
}
sport = spv_get(domain->lookup, d_id);
ocs_unlock(&domain->lookup_lock);
return sport;
}
/**
* @ingroup sport_sm
* @brief Find a SLI port, given the WWNN and WWPN.
*
* @par Description
* Return a pointer to a sport, given the WWNN and WWPN.
*
* @param domain Pointer to the domain.
* @param wwnn World wide node name.
* @param wwpn World wide port name.
*
* @return Returns a pointer to a SLI port, if found; or NULL.
*/
ocs_sport_t *
ocs_sport_find_wwn(ocs_domain_t *domain, uint64_t wwnn, uint64_t wwpn)
{
ocs_sport_t *sport = NULL;
ocs_domain_lock(domain);
ocs_list_foreach(&domain->sport_list, sport) {
if ((sport->wwnn == wwnn) && (sport->wwpn == wwpn)) {
ocs_domain_unlock(domain);
return sport;
}
}
ocs_domain_unlock(domain);
return NULL;
}
/**
* @ingroup sport_sm
* @brief Request a SLI port attach.
*
* @par Description
* External call to request an attach for a sport, given an FC_ID.
*
* @param sport Pointer to the sport context.
* @param fc_id FC_ID of which to attach.
*
* @return Returns 0 on success, or a negative error value on failure.
*/
int32_t
ocs_sport_attach(ocs_sport_t *sport, uint32_t fc_id)
{
ocs_hal_rtn_e rc;
ocs_node_t *node;
/* Set our lookup */
ocs_lock(&sport->domain->lookup_lock);
spv_set(sport->domain->lookup, fc_id, sport);
ocs_unlock(&sport->domain->lookup_lock);
/* Update our display_name */
ocs_node_fcid_display(fc_id, sport->display_name, sizeof(sport->display_name));
ocs_sport_lock(sport);
ocs_list_foreach(&sport->node_list, node) {
ocs_node_update_display_name(node);
}
ocs_sport_unlock(sport);
ocs_log_debug(sport->ocs, "[%s] attach sport: fc_id x%06x\n", sport->display_name, fc_id);
rc = ocs_hal_port_attach(&sport->ocs->hal, sport, fc_id);
if (rc != OCS_HAL_RTN_SUCCESS) {
ocs_log_err(sport->ocs, "%s: ocs_hal_port_attach failed: %d\n", __func__, rc);
return -1;
}
return 0;
}
/**
* @brief Common SLI port state machine declarations and initialization.
*/
#define std_sport_state_decl() \
ocs_sport_t *sport = NULL; \
ocs_domain_t *domain = NULL; \
ocs_t *ocs = NULL; \
\
ocs_assert(ctx, NULL); \
sport = ctx->app; \
ocs_assert(sport, NULL); \
\
domain = sport->domain; \
ocs_assert(domain, NULL); \
ocs = sport->ocs; \
ocs_assert(ocs, NULL);
/**
* @brief Common SLI port state machine trace logging.
*/
#define sport_sm_trace(sport) \
do { \
if (OCS_LOG_ENABLE_DOMAIN_SM_TRACE(ocs)) \
ocs_log_debug(ocs, "[%s] %-20s %-20s\n", sport->display_name, __func__, ocs_sm_event_name(evt)); \
} while (0)
/**
* @brief SLI port state machine: Common event handler.
*
* @par Description
* Handle common sport events.
*
* @param funcname Function name to display.
* @param ctx Sport state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
static void *
__ocs_sport_common(const char *funcname, ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
switch(evt) {
case OCS_EVT_ENTER:
case OCS_EVT_REENTER:
case OCS_EVT_EXIT:
case OCS_EVT_ALL_CHILD_NODES_FREE:
break;
case OCS_EVT_SPORT_ATTACH_OK:
ocs_sm_transition(ctx, __ocs_sport_attached, NULL);
break;
case OCS_EVT_SHUTDOWN: {
ocs_node_t *node;
ocs_node_t *node_next;
int node_list_empty;
/* Flag this sport as shutting down */
sport->shutting_down = 1;
if (sport->is_vport) {
ocs_vport_link_down(sport);
}
ocs_sport_lock(sport);
node_list_empty = ocs_list_empty(&sport->node_list);
ocs_sport_unlock(sport);
if (node_list_empty) {
//sm: node list is empty / ocs_hal_port_free
/* Remove the sport from the domain's sparse vector lookup table */
ocs_lock(&domain->lookup_lock);
spv_set(domain->lookup, sport->fc_id, NULL);
ocs_unlock(&domain->lookup_lock);
ocs_sm_transition(ctx, __ocs_sport_wait_port_free, NULL);
if (ocs_hal_port_free(&ocs->hal, sport)) {
ocs_log_test(sport->ocs, "%s: ocs_hal_port_free failed\n", __func__);
/* Not much we can do, free the sport anyways */
ocs_sport_free(sport);
}
} else {
//sm: node list is not empty / shutdown nodes
ocs_sm_transition(ctx, __ocs_sport_wait_shutdown, NULL);
ocs_sport_lock(sport);
ocs_list_foreach_safe(&sport->node_list, node, node_next) {
/*
* If this is a vport, logout of the fabric controller so that it
* deletes the vport on the switch.
*/
if((node->rnode.fc_id == FC_ADDR_FABRIC) && (sport->is_vport)) {
/* if link is down, don't send logo */
if (sport->ocs->hal.link.status == SLI_LINK_STATUS_DOWN) {
ocs_node_post_event(node, OCS_EVT_SHUTDOWN, NULL);
} else {
ocs_log_debug(ocs,"[%s] %s: sport shutdown vport,sending logo to node\n",
node->display_name, __func__);
if (ocs_send_logo(node, OCS_FC_ELS_SEND_DEFAULT_TIMEOUT,
0, NULL, NULL) == NULL) {
/* failed to send LOGO, go ahead and cleanup node anyways */
node_printf(node, "Failed to send LOGO\n");
ocs_node_post_event(node, OCS_EVT_SHUTDOWN_EXPLICIT_LOGO, NULL);
} else {
/* sent LOGO, wait for response */
ocs_node_transition(node, __ocs_d_wait_logo_rsp, NULL);
}
}
} else {
ocs_node_post_event(node, OCS_EVT_SHUTDOWN, NULL);
}
}
ocs_sport_unlock(sport);
}
break;
}
default:
ocs_log_test(sport->ocs, "[%s] %-20s %-20s not handled\n", sport->display_name, funcname, ocs_sm_event_name(evt));
break;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Physical sport allocated.
*
* @par Description
* This is the initial state for sport objects.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_allocated(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
/* the physical sport is attached */
case OCS_EVT_SPORT_ATTACH_OK:
ocs_assert(sport == domain->sport, NULL);
ocs_sm_transition(ctx, __ocs_sport_attached, NULL);
break;
case OCS_EVT_SPORT_ALLOC_OK:
/* ignore */
break;
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Handle initial virtual port events.
*
* @par Description
* This state is entered when a virtual port is instantiated,
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_vport_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_ENTER: {
uint64_t be_wwpn = ocs_htobe64(sport->wwpn);
if (sport->wwpn == 0) {
ocs_log_debug(ocs, "vport: letting f/w select WWN\n");
}
if (sport->fc_id != UINT32_MAX) {
ocs_log_debug(ocs, "vport: hard coding port id: %x\n", sport->fc_id);
}
ocs_sm_transition(ctx, __ocs_sport_vport_wait_alloc, NULL);
/* If wwpn is zero, then we'll let the f/w */
if (ocs_hal_port_alloc(&ocs->hal, sport, sport->domain,
(sport->wwpn == 0) ? NULL : (uint8_t *)&be_wwpn)) {
ocs_log_err(ocs, "Can't allocate port\n");
break;
}
break;
}
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Wait for the HAL SLI port allocation to complete.
*
* @par Description
* Waits for the HAL sport allocation request to complete.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_vport_wait_alloc(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_SPORT_ALLOC_OK: {
fc_plogi_payload_t *sp = (fc_plogi_payload_t*) sport->service_params;
ocs_node_t *fabric;
/* If we let f/w assign wwn's, then sport wwn's with those returned by hal */
if (sport->wwnn == 0) {
sport->wwnn = ocs_be64toh(sport->sli_wwnn);
sport->wwpn = ocs_be64toh(sport->sli_wwpn);
ocs_snprintf(sport->wwnn_str, sizeof(sport->wwnn_str), "%016" PRIX64, sport->wwpn);
}
/* Update the sport's service parameters */
sp->port_name_hi = ocs_htobe32((uint32_t) (sport->wwpn >> 32ll));
sp->port_name_lo = ocs_htobe32((uint32_t) sport->wwpn);
sp->node_name_hi = ocs_htobe32((uint32_t) (sport->wwnn >> 32ll));
sp->node_name_lo = ocs_htobe32((uint32_t) sport->wwnn);
/* if sport->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 (sport->fc_id == UINT32_MAX) {
fabric = ocs_node_alloc(sport, FC_ADDR_FABRIC, FALSE, FALSE);
if (fabric == NULL) {
ocs_log_err(ocs, "%s: ocs_node_alloc() failed\n", __func__);
return NULL;
}
ocs_node_transition(fabric, __ocs_vport_fabric_init, NULL);
} else {
ocs_snprintf(sport->wwnn_str, sizeof(sport->wwnn_str), "%016" PRIX64, sport->wwpn);
ocs_sport_attach(sport, sport->fc_id);
}
ocs_sm_transition(ctx, __ocs_sport_vport_allocated, NULL);
break;
}
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: virtual sport allocated.
*
* @par Description
* This state is entered after the sport is allocated; it then waits for a fabric node
* FDISC to complete, which requests a sport attach.
* The sport attach complete is handled in this state.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_vport_allocated(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_SPORT_ATTACH_OK: {
ocs_node_t *node;
if (!(domain->femul_enable)) {
/* Find our fabric node, and forward this event */
node = ocs_node_find(sport, FC_ADDR_FABRIC);
if (node == NULL) {
ocs_log_test(ocs, "%s: can't find node %06x\n", __func__, FC_ADDR_FABRIC);
break;
}
//sm: / forward sport attach to fabric node
ocs_node_post_event(node, evt, NULL);
}
ocs_sm_transition(ctx, __ocs_sport_attached, NULL);
break;
}
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Attached.
*
* @par Description
* State entered after the sport attach has completed.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_attached(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_ENTER: {
ocs_node_t *node;
ocs_log_debug(ocs, "[%s] SPORT attached WWPN %016" PRIx64 " WWNN %016" PRIx64 "\n", sport->display_name,
sport->wwpn, sport->wwnn);
ocs_sport_lock(sport);
ocs_list_foreach(&sport->node_list, node) {
ocs_node_update_display_name(node);
}
ocs_sport_unlock(sport);
sport->tgt_id = sport->fc_id;
if (ocs->enable_ini) {
ocs_scsi_ini_new_sport(sport);
}
if (ocs->enable_tgt) {
ocs_scsi_tgt_new_sport(sport);
ocs_nvme_tgt_new_sport(sport);
}
/* Update the vport (if its not the physical sport) parameters */
if (sport->is_vport) {
ocs_vport_update_spec(sport);
}
#if defined(ENABLE_FABRIC_EMULATION)
/* If Fabric Emulation, then register with driver name server */
if (domain->femul_enable) {
ocs_femul_sport_attach(sport);
/* Decrement outstanding femul_count, if it goes to zero, then notify fabric emulation */
if (ocs_atomic_read(&domain->femul_count)) {
if (ocs_atomic_sub_return(&domain->femul_count, 1) == 1) {
ocs_femul_ports_attached(domain);
}
}
}
#endif
break;
}
case OCS_EVT_EXIT:
ocs_log_debug(ocs, "[%s] SPORT deattached WWPN %016" PRIx64 " WWNN %016" PRIx64 "\n", sport->display_name,
sport->wwpn, sport->wwnn);
if (ocs->enable_ini) {
ocs_scsi_ini_del_sport(sport);
}
if (ocs->enable_tgt) {
ocs_scsi_tgt_del_sport(sport);
}
break;
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Wait for the node shutdowns to complete.
*
* @par Description
* Waits for the ALL_CHILD_NODES_FREE event to be posted from the node
* shutdown process.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_wait_shutdown(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_SPORT_ALLOC_OK:
case OCS_EVT_SPORT_ALLOC_FAIL:
case OCS_EVT_SPORT_ATTACH_OK:
case OCS_EVT_SPORT_ATTACH_FAIL:
/* ignore these events - just wait for the all free event */
break;
case OCS_EVT_ALL_CHILD_NODES_FREE: {
/* Remove the sport from the domain's sparse vector lookup table */
ocs_lock(&domain->lookup_lock);
spv_set(domain->lookup, sport->fc_id, NULL);
ocs_unlock(&domain->lookup_lock);
ocs_sm_transition(ctx, __ocs_sport_wait_port_free, NULL);
if (ocs_hal_port_free(&ocs->hal, sport)) {
ocs_log_err(sport->ocs, "%s: ocs_hal_port_free failed\n", __func__);
/* Not much we can do, free the sport anyways */
ocs_sport_free(sport);
}
break;
}
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief SLI port state machine: Wait for the HAL's port free to complete.
*
* @par Description
* Waits for the HAL's port free to complete.
*
* @param ctx Remote node state machine context.
* @param evt Event to process.
* @param arg Per event optional argument.
*
* @return Returns NULL.
*/
void *
__ocs_sport_wait_port_free(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg)
{
std_sport_state_decl();
sport_sm_trace(sport);
switch(evt) {
case OCS_EVT_SPORT_ATTACH_OK:
/* Ignore as we are waiting for the free CB */
break;
case OCS_EVT_SPORT_FREE_OK: {
/* All done, free myself */
//sm: / ocs_sport_free
ocs_sport_free(sport);
break;
}
default:
__ocs_sport_common(__func__, ctx, evt, arg);
return NULL;
}
return NULL;
}
/**
* @ingroup sport_sm
* @brief Start the vports on a domain
*
* @par Description
* Use the vport specification to find the associated vports and start them.
*
* @param domain Pointer to the domain context.
*
* @return Returns 0 on success, or a negative error value on failure.
*/
int32_t
ocs_vport_start(ocs_domain_t *domain)
{
ocs_t *ocs = domain->ocs;
ocs_xport_t *xport = ocs->xport;
ocs_vport_spec_t *vport;
ocs_vport_spec_t *next;
ocs_sport_t *sport;
int32_t rc = 0;
ocs_device_lock(ocs);
ocs_list_foreach_safe(&xport->vport_list, vport, next) {
if (vport->domain_instance == domain->instance_index &&
vport->sport == NULL) {
#if defined(ENABLE_FABRIC_EMULATION)
if (domain->femul_enable) {
vport->fc_id = ocs_femul_portid_alloc(domain);
}
#endif
/* Allocate a sport */
vport->sport = sport = ocs_sport_alloc(domain, vport->wwpn, vport->wwnn, vport->fc_id,
vport->enable_ini, vport->enable_tgt);
if (sport == NULL) {
rc = -1;
} else {
sport->is_vport = 1;
sport->tgt_data = vport->tgt_data;
sport->ini_data = vport->ini_data;
/* Transition to vport_init */
ocs_sm_transition(&sport->sm, __ocs_sport_vport_init, NULL);
}
}
}
ocs_device_unlock(ocs);
return rc;
}
/**
* @ingroup sport_sm
* @brief Clear the sport reference in the vport specification.
*
* @par Description
* Clear the sport pointer on the vport specification when the vport is torn down. This allows it to be
* re-created when the link is re-established.
*
* @param sport Pointer to the sport context.
*/
static void
ocs_vport_link_down(ocs_sport_t *sport)
{
ocs_t *ocs = sport->ocs;
ocs_xport_t *xport = ocs->xport;
ocs_vport_spec_t *vport;
ocs_device_lock(ocs);
ocs_list_foreach(&xport->vport_list, vport) {
if (vport->sport == sport) {
vport->sport = NULL;
break;
}
}
ocs_device_unlock(ocs);
}