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sys/dev/ocs_fc/ocs_fabric.c
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/*- | |||||
* Copyright (c) 2017 Broadcom. All rights reserved. | |||||
* The term "Broadcom" refers to Broadcom Limited 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: | |||||
* | |||||
* 1. Redistributions of source code must retain the above copyright notice, | |||||
* this list of conditions and the following disclaimer. | |||||
* | |||||
* 2. 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. | |||||
* | |||||
* 3. Neither the name of the copyright holder 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 HOLDER 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 | |||||
* | |||||
* This file implements remote node state machines for: | |||||
* - Fabric logins. | |||||
* - Fabric controller events. | |||||
* - Name/directory services interaction. | |||||
* - Point-to-point logins. | |||||
*/ | |||||
/*! | |||||
@defgroup fabric_sm Node State Machine: Fabric States | |||||
@defgroup ns_sm Node State Machine: Name/Directory Services States | |||||
@defgroup p2p_sm Node State Machine: Point-to-Point Node States | |||||
*/ | |||||
#include "ocs.h" | |||||
#include "ocs_fabric.h" | |||||
#include "ocs_els.h" | |||||
#include "ocs_device.h" | |||||
static void ocs_fabric_initiate_shutdown(ocs_node_t *node); | |||||
static void * __ocs_fabric_common(const char *funcname, ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg); | |||||
static int32_t ocs_start_ns_node(ocs_sport_t *sport); | |||||
static int32_t ocs_start_fabctl_node(ocs_sport_t *sport); | |||||
static int32_t ocs_process_gidpt_payload(ocs_node_t *node, fcct_gidpt_acc_t *gidpt, uint32_t gidpt_len); | |||||
static void ocs_process_rscn(ocs_node_t *node, ocs_node_cb_t *cbdata); | |||||
static uint64_t ocs_get_wwpn(fc_plogi_payload_t *sp); | |||||
static void gidpt_delay_timer_cb(void *arg); | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Initial state. | |||||
* | |||||
* @par Description | |||||
* Send an FLOGI to a well-known fabric. | |||||
* | |||||
* @param ctx Remote node sm context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_REENTER: /* not sure why we're getting these ... */ | |||||
ocs_log_debug(node->ocs, ">>> reenter !!\n"); | |||||
/* fall through */ | |||||
case OCS_EVT_ENTER: | |||||
/* sm: / send FLOGI */ | |||||
ocs_send_flogi(node, OCS_FC_FLOGI_TIMEOUT_SEC, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_fabric_flogi_wait_rsp, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Set sport topology. | |||||
* | |||||
* @par Description | |||||
* Set sport topology. | |||||
* | |||||
* @param node Pointer to the node for which the topology is set. | |||||
* @param topology Topology to set. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void | |||||
ocs_fabric_set_topology(ocs_node_t *node, ocs_sport_topology_e topology) | |||||
{ | |||||
node->sport->topology = topology; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Notify sport topology. | |||||
* @par Description | |||||
* notify sport topology. | |||||
* @param node Pointer to the node for which the topology is set. | |||||
* @return Returns NULL. | |||||
*/ | |||||
void | |||||
ocs_fabric_notify_topology(ocs_node_t *node) | |||||
{ | |||||
ocs_node_t *tmp_node; | |||||
ocs_node_t *next; | |||||
ocs_sport_topology_e topology = node->sport->topology; | |||||
/* now loop through the nodes in the sport and send topology notification */ | |||||
ocs_sport_lock(node->sport); | |||||
ocs_list_foreach_safe(&node->sport->node_list, tmp_node, next) { | |||||
if (tmp_node != node) { | |||||
ocs_node_post_event(tmp_node, OCS_EVT_SPORT_TOPOLOGY_NOTIFY, (void *)topology); | |||||
} | |||||
} | |||||
ocs_sport_unlock(node->sport); | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Wait for an FLOGI response. | |||||
* | |||||
* @par Description | |||||
* Wait for an FLOGI response event. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_flogi_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_FLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
ocs_domain_save_sparms(node->sport->domain, cbdata->els->els_rsp.virt); | |||||
ocs_display_sparams(node->display_name, "flogi rcvd resp", 0, NULL, | |||||
((uint8_t*)cbdata->els->els_rsp.virt) + 4); | |||||
/* Check to see if the fabric is an F_PORT or and N_PORT */ | |||||
if (ocs_rnode_is_nport(cbdata->els->els_rsp.virt)) { | |||||
/* sm: if nport and p2p_winner / ocs_domain_attach */ | |||||
ocs_fabric_set_topology(node, OCS_SPORT_TOPOLOGY_P2P); | |||||
if (ocs_p2p_setup(node->sport)) { | |||||
node_printf(node, "p2p setup failed, shutting down node\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
} else { | |||||
if (node->sport->p2p_winner) { | |||||
ocs_node_transition(node, __ocs_p2p_wait_domain_attach, NULL); | |||||
if (!node->sport->domain->attached) { | |||||
node_printf(node, "p2p winner, domain not attached\n"); | |||||
ocs_domain_attach(node->sport->domain, node->sport->p2p_port_id); | |||||
} else { | |||||
/* already attached, just send ATTACH_OK */ | |||||
node_printf(node, "p2p winner, domain already attached\n"); | |||||
ocs_node_post_event(node, OCS_EVT_DOMAIN_ATTACH_OK, NULL); | |||||
} | |||||
} else { | |||||
/* peer is p2p winner; PLOGI will be received on the | |||||
* remote SID=1 node; this node has served its purpose | |||||
*/ | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
} | |||||
} | |||||
} else { | |||||
/* sm: if not nport / ocs_domain_attach */ | |||||
/* ext_status has the fc_id, attach domain */ | |||||
ocs_fabric_set_topology(node, OCS_SPORT_TOPOLOGY_FABRIC); | |||||
ocs_fabric_notify_topology(node); | |||||
ocs_assert(!node->sport->domain->attached, NULL); | |||||
ocs_domain_attach(node->sport->domain, cbdata->ext_status); | |||||
ocs_node_transition(node, __ocs_fabric_wait_domain_attach, NULL); | |||||
} | |||||
break; | |||||
} | |||||
case OCS_EVT_ELS_REQ_ABORTED: | |||||
case OCS_EVT_SRRS_ELS_REQ_RJT: | |||||
case OCS_EVT_SRRS_ELS_REQ_FAIL: { | |||||
ocs_sport_t *sport = node->sport; | |||||
/* | |||||
* with these errors, we have no recovery, so shutdown the sport, leave the link | |||||
* up and the domain ready | |||||
*/ | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_FLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
node_printf(node, "FLOGI failed evt=%s, shutting down sport [%s]\n", ocs_sm_event_name(evt), | |||||
sport->display_name); | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
ocs_sm_post_event(&sport->sm, OCS_EVT_SHUTDOWN, NULL); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Initial state for a virtual port. | |||||
* | |||||
* @par Description | |||||
* State entered when a virtual port is created. Send FDISC. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_vport_fabric_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
/* sm: send FDISC */ | |||||
ocs_send_fdisc(node, OCS_FC_FLOGI_TIMEOUT_SEC, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_fabric_fdisc_wait_rsp, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Wait for an FDISC response | |||||
* | |||||
* @par Description | |||||
* Used for a virtual port. Waits for an FDISC response. If OK, issue a HW port attach. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_fdisc_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
/* fc_id is in ext_status */ | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_FDISC, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_display_sparams(node->display_name, "fdisc rcvd resp", 0, NULL, | |||||
((uint8_t*)cbdata->els->els_rsp.virt) + 4); | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/* sm: ocs_sport_attach */ | |||||
ocs_sport_attach(node->sport, cbdata->ext_status); | |||||
ocs_node_transition(node, __ocs_fabric_wait_domain_attach, NULL); | |||||
break; | |||||
} | |||||
case OCS_EVT_SRRS_ELS_REQ_RJT: | |||||
case OCS_EVT_SRRS_ELS_REQ_FAIL: { | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_FDISC, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
ocs_log_err(ocs, "FDISC failed, shutting down sport\n"); | |||||
/* sm: shutdown sport */ | |||||
ocs_sm_post_event(&node->sport->sm, OCS_EVT_SHUTDOWN, NULL); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Wait for a domain/sport attach event. | |||||
* | |||||
* @par Description | |||||
* Waits for a domain/sport attach event. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_wait_domain_attach(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_DOMAIN_ATTACH_OK: | |||||
case OCS_EVT_SPORT_ATTACH_OK: { | |||||
int rc; | |||||
rc = ocs_start_ns_node(node->sport); | |||||
if (rc) | |||||
return NULL; | |||||
/* sm: if enable_ini / start fabctl node | |||||
* Instantiate the fabric controller (sends SCR) */ | |||||
if (node->sport->enable_rscn) { | |||||
rc = ocs_start_fabctl_node(node->sport); | |||||
if (rc) | |||||
return NULL; | |||||
} | |||||
ocs_node_transition(node, __ocs_fabric_idle, NULL); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Fabric node is idle. | |||||
* | |||||
* @par Description | |||||
* Wait for fabric node events. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_idle(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_DOMAIN_ATTACH_OK: | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Initialize. | |||||
* | |||||
* @par Description | |||||
* A PLOGI is sent to the well-known name/directory services node. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
/* sm: send PLOGI */ | |||||
ocs_send_plogi(node, OCS_FC_ELS_SEND_DEFAULT_TIMEOUT, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_plogi_wait_rsp, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Wait for a PLOGI response. | |||||
* | |||||
* @par Description | |||||
* Waits for a response from PLOGI to name services node, then issues a | |||||
* node attach request to the HW. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_plogi_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
int32_t rc; | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
/* Save service parameters */ | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_PLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/* sm: save sparams, ocs_node_attach */ | |||||
ocs_node_save_sparms(node, cbdata->els->els_rsp.virt); | |||||
ocs_display_sparams(node->display_name, "plogi rcvd resp", 0, NULL, | |||||
((uint8_t*)cbdata->els->els_rsp.virt) + 4); | |||||
rc = ocs_node_attach(node); | |||||
ocs_node_transition(node, __ocs_ns_wait_node_attach, NULL); | |||||
if (rc == OCS_HW_RTN_SUCCESS_SYNC) { | |||||
ocs_node_post_event(node, OCS_EVT_NODE_ATTACH_OK, NULL); | |||||
} | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Wait for a node attach completion. | |||||
* | |||||
* @par Description | |||||
* Waits for a node attach completion, then issues an RFTID name services | |||||
* request. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_wait_node_attach(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_OK: | |||||
node->attached = TRUE; | |||||
/* sm: send RFTID */ | |||||
ocs_ns_send_rftid(node, OCS_FC_ELS_CT_SEND_DEFAULT_TIMEOUT, | |||||
OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_rftid_wait_rsp, NULL); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_FAIL: | |||||
/* node attach failed, shutdown the node */ | |||||
node->attached = FALSE; | |||||
node_printf(node, "Node attach failed\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
case OCS_EVT_SHUTDOWN: | |||||
node_printf(node, "Shutdown event received\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_node_transition(node, __ocs_fabric_wait_attach_evt_shutdown, NULL); | |||||
break; | |||||
/* if receive RSCN just ignore, | |||||
* we haven't sent GID_PT yet (ACC sent by fabctl node) */ | |||||
case OCS_EVT_RSCN_RCVD: | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Wait for a domain/sport/node attach completion, then | |||||
* shutdown. | |||||
* | |||||
* @par Description | |||||
* Waits for a domain/sport/node attach completion, then shuts | |||||
* node down. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabric_wait_attach_evt_shutdown(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
/* wait for any of these attach events and then shutdown */ | |||||
case OCS_EVT_NODE_ATTACH_OK: | |||||
node->attached = TRUE; | |||||
node_printf(node, "Attach evt=%s, proceed to shutdown\n", ocs_sm_event_name(evt)); | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_FAIL: | |||||
node->attached = FALSE; | |||||
node_printf(node, "Attach evt=%s, proceed to shutdown\n", ocs_sm_event_name(evt)); | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
/* ignore shutdown event as we're already in shutdown path */ | |||||
case OCS_EVT_SHUTDOWN: | |||||
node_printf(node, "Shutdown event received\n"); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Wait for an RFTID response event. | |||||
* | |||||
* @par Description | |||||
* Waits for an RFTID response event; if configured for an initiator operation, | |||||
* a GIDPT name services request is issued. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_rftid_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: | |||||
if (node_check_ns_req(ctx, evt, arg, FC_GS_NAMESERVER_RFT_ID, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/*sm: send RFFID */ | |||||
ocs_ns_send_rffid(node, OCS_FC_ELS_CT_SEND_DEFAULT_TIMEOUT, | |||||
OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_rffid_wait_rsp, NULL); | |||||
break; | |||||
/* if receive RSCN just ignore, | |||||
* we haven't sent GID_PT yet (ACC sent by fabctl node) */ | |||||
case OCS_EVT_RSCN_RCVD: | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Fabric node state machine: Wait for RFFID response event. | |||||
* | |||||
* @par Description | |||||
* Waits for an RFFID response event; if configured for an initiator operation, | |||||
* a GIDPT name services request is issued. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_rffid_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
if (node_check_ns_req(ctx, evt, arg, FC_GS_NAMESERVER_RFF_ID, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
if (node->sport->enable_rscn) { | |||||
/* sm: if enable_rscn / send GIDPT */ | |||||
ocs_ns_send_gidpt(node, OCS_FC_ELS_CT_SEND_DEFAULT_TIMEOUT, | |||||
OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_gidpt_wait_rsp, NULL); | |||||
} else { | |||||
/* if 'T' only, we're done, go to idle */ | |||||
ocs_node_transition(node, __ocs_ns_idle, NULL); | |||||
} | |||||
break; | |||||
} | |||||
/* if receive RSCN just ignore, | |||||
* we haven't sent GID_PT yet (ACC sent by fabctl node) */ | |||||
case OCS_EVT_RSCN_RCVD: | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Wait for a GIDPT response. | |||||
* | |||||
* @par Description | |||||
* Wait for a GIDPT response from the name server. Process the FC_IDs that are | |||||
* reported by creating new remote ports, as needed. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_gidpt_wait_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
if (node_check_ns_req(ctx, evt, arg, FC_GS_NAMESERVER_GID_PT, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/* sm: / process GIDPT payload */ | |||||
ocs_process_gidpt_payload(node, cbdata->els->els_rsp.virt, cbdata->els->els_rsp.len); | |||||
/* TODO: should we logout at this point or just go idle */ | |||||
ocs_node_transition(node, __ocs_ns_idle, NULL); | |||||
break; | |||||
} | |||||
case OCS_EVT_SRRS_ELS_REQ_FAIL: { | |||||
/* not much we can do; will retry with the next RSCN */ | |||||
node_printf(node, "GID_PT failed to complete\n"); | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
ocs_node_transition(node, __ocs_ns_idle, NULL); | |||||
break; | |||||
} | |||||
/* if receive RSCN here, queue up another discovery processing */ | |||||
case OCS_EVT_RSCN_RCVD: { | |||||
node_printf(node, "RSCN received during GID_PT processing\n"); | |||||
node->rscn_pending = 1; | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Idle state. | |||||
* | |||||
* @par Description | |||||
* Idle. Waiting for RSCN received events (posted from the fabric controller), and | |||||
* restarts the GIDPT name services query and processing. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_idle(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
if (!node->rscn_pending) { | |||||
break; | |||||
} | |||||
node_printf(node, "RSCN pending, restart discovery\n"); | |||||
node->rscn_pending = 0; | |||||
/* fall through */ | |||||
case OCS_EVT_RSCN_RCVD: { | |||||
/* sm: / send GIDPT | |||||
* If target RSCN processing is enabled, and this is target only | |||||
* (not initiator), and tgt_rscn_delay is non-zero, | |||||
* then we delay issuing the GID_PT | |||||
*/ | |||||
if ((ocs->tgt_rscn_delay_msec != 0) && !node->sport->enable_ini && node->sport->enable_tgt && | |||||
enable_target_rscn(ocs)) { | |||||
ocs_node_transition(node, __ocs_ns_gidpt_delay, NULL); | |||||
} else { | |||||
ocs_ns_send_gidpt(node, OCS_FC_ELS_CT_SEND_DEFAULT_TIMEOUT, | |||||
OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_gidpt_wait_rsp, NULL); | |||||
} | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @brief Handle GIDPT delay timer callback | |||||
* | |||||
* @par Description | |||||
* Post an OCS_EVT_GIDPT_DEIALY_EXPIRED event to the passed in node. | |||||
* | |||||
* @param arg Pointer to node. | |||||
* | |||||
* @return None. | |||||
*/ | |||||
static void | |||||
gidpt_delay_timer_cb(void *arg) | |||||
{ | |||||
ocs_node_t *node = arg; | |||||
int32_t rc; | |||||
ocs_del_timer(&node->gidpt_delay_timer); | |||||
rc = ocs_xport_control(node->ocs->xport, OCS_XPORT_POST_NODE_EVENT, node, OCS_EVT_GIDPT_DELAY_EXPIRED, NULL); | |||||
if (rc) { | |||||
ocs_log_err(node->ocs, "ocs_xport_control(OCS_XPORT_POST_NODE_EVENT) failed: %d\n", rc); | |||||
} | |||||
} | |||||
/** | |||||
* @ingroup ns_sm | |||||
* @brief Name services node state machine: Delayed GIDPT. | |||||
* | |||||
* @par Description | |||||
* Waiting for GIDPT delay to expire before submitting GIDPT to name server. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_ns_gidpt_delay(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: { | |||||
time_t delay_msec; | |||||
ocs_assert(ocs->tgt_rscn_delay_msec != 0, NULL); | |||||
/* | |||||
* Compute the delay time. Set to tgt_rscn_delay, if the time since last GIDPT | |||||
* is less than tgt_rscn_period, then use tgt_rscn_period. | |||||
*/ | |||||
delay_msec = ocs->tgt_rscn_delay_msec; | |||||
if ((ocs_msectime() - node->time_last_gidpt_msec) < ocs->tgt_rscn_period_msec) { | |||||
delay_msec = ocs->tgt_rscn_period_msec; | |||||
} | |||||
ocs_setup_timer(ocs, &node->gidpt_delay_timer, gidpt_delay_timer_cb, node, delay_msec); | |||||
break; | |||||
} | |||||
case OCS_EVT_GIDPT_DELAY_EXPIRED: | |||||
node->time_last_gidpt_msec = ocs_msectime(); | |||||
ocs_ns_send_gidpt(node, OCS_FC_ELS_CT_SEND_DEFAULT_TIMEOUT, | |||||
OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_ns_gidpt_wait_rsp, NULL); | |||||
break; | |||||
case OCS_EVT_RSCN_RCVD: { | |||||
ocs_log_debug(ocs, "RSCN received while in GIDPT delay - no action\n"); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric controller node state machine: Initial state. | |||||
* | |||||
* @par Description | |||||
* Issue a PLOGI to a well-known fabric controller address. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabctl_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_t *node = ctx->app; | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
/* no need to login to fabric controller, just send SCR */ | |||||
ocs_send_scr(node, OCS_FC_ELS_SEND_DEFAULT_TIMEOUT, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_fabctl_wait_scr_rsp, NULL); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_OK: | |||||
node->attached = TRUE; | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric controller node state machine: Wait for a node attach request | |||||
* to complete. | |||||
* | |||||
* @par Description | |||||
* Wait for a node attach to complete. If successful, issue an SCR | |||||
* to the fabric controller, subscribing to all RSCN. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
* | |||||
*/ | |||||
void * | |||||
__ocs_fabctl_wait_node_attach(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_OK: | |||||
node->attached = TRUE; | |||||
/* sm: / send SCR */ | |||||
ocs_send_scr(node, OCS_FC_ELS_SEND_DEFAULT_TIMEOUT, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_fabctl_wait_scr_rsp, NULL); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_FAIL: | |||||
/* node attach failed, shutdown the node */ | |||||
node->attached = FALSE; | |||||
node_printf(node, "Node attach failed\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
case OCS_EVT_SHUTDOWN: | |||||
node_printf(node, "Shutdown event received\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_node_transition(node, __ocs_fabric_wait_attach_evt_shutdown, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric controller node state machine: Wait for an SCR response from the | |||||
* fabric controller. | |||||
* | |||||
* @par Description | |||||
* Waits for an SCR response from the fabric controller. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabctl_wait_scr_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_SCR, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
ocs_node_transition(node, __ocs_fabctl_ready, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric controller node state machine: Ready. | |||||
* | |||||
* @par Description | |||||
* In this state, the fabric controller sends a RSCN, which is received | |||||
* by this node and is forwarded to the name services node object; and | |||||
* the RSCN LS_ACC is sent. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabctl_ready(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_RSCN_RCVD: { | |||||
fc_header_t *hdr = cbdata->header->dma.virt; | |||||
/* sm: / process RSCN (forward to name services node), | |||||
* send LS_ACC */ | |||||
ocs_process_rscn(node, cbdata); | |||||
ocs_send_ls_acc(cbdata->io, ocs_be16toh(hdr->ox_id), NULL, NULL); | |||||
ocs_node_transition(node, __ocs_fabctl_wait_ls_acc_cmpl, NULL); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric controller node state machine: Wait for LS_ACC. | |||||
* | |||||
* @par Description | |||||
* Waits for the LS_ACC from the fabric controller. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_fabctl_wait_ls_acc_cmpl(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_SRRS_ELS_CMPL_OK: | |||||
ocs_assert(node->els_cmpl_cnt, NULL); | |||||
node->els_cmpl_cnt--; | |||||
ocs_node_transition(node, __ocs_fabctl_ready, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Initiate fabric node shutdown. | |||||
* | |||||
* @param node Node for which shutdown is initiated. | |||||
* | |||||
* @return Returns None. | |||||
*/ | |||||
static void | |||||
ocs_fabric_initiate_shutdown(ocs_node_t *node) | |||||
{ | |||||
ocs_hw_rtn_e rc; | |||||
ocs_t *ocs = node->ocs; | |||||
ocs_scsi_io_alloc_disable(node); | |||||
if (node->attached) { | |||||
/* issue hw node free; don't care if succeeds right away | |||||
* or sometime later, will check node->attached later in | |||||
* shutdown process | |||||
*/ | |||||
rc = ocs_hw_node_detach(&ocs->hw, &node->rnode); | |||||
if (node->rnode.free_group) { | |||||
ocs_remote_node_group_free(node->node_group); | |||||
node->node_group = NULL; | |||||
node->rnode.free_group = FALSE; | |||||
} | |||||
if (rc != OCS_HW_RTN_SUCCESS && rc != OCS_HW_RTN_SUCCESS_SYNC) { | |||||
node_printf(node, "Failed freeing HW node, rc=%d\n", rc); | |||||
} | |||||
} | |||||
/* | |||||
* node has either been detached or is in the process of being detached, | |||||
* call common node's initiate cleanup function | |||||
*/ | |||||
ocs_node_initiate_cleanup(node); | |||||
} | |||||
/** | |||||
* @ingroup fabric_sm | |||||
* @brief Fabric node state machine: Handle the common fabric node events. | |||||
* | |||||
* @param funcname Function name text. | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
static void * | |||||
__ocs_fabric_common(const char *funcname, ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_t *node = NULL; | |||||
ocs_assert(ctx, NULL); | |||||
ocs_assert(ctx->app, NULL); | |||||
node = ctx->app; | |||||
switch(evt) { | |||||
case OCS_EVT_DOMAIN_ATTACH_OK: | |||||
break; | |||||
case OCS_EVT_SHUTDOWN: | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
default: | |||||
/* call default event handler common to all nodes */ | |||||
__ocs_node_common(funcname, ctx, evt, arg); | |||||
break; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @brief Return TRUE if the remote node is an NPORT. | |||||
* | |||||
* @par Description | |||||
* Examines the service parameters. Returns TRUE if the node reports itself as | |||||
* an NPORT. | |||||
* | |||||
* @param remote_sparms Remote node service parameters. | |||||
* | |||||
* @return Returns TRUE if NPORT. | |||||
*/ | |||||
int32_t | |||||
ocs_rnode_is_nport(fc_plogi_payload_t *remote_sparms) | |||||
{ | |||||
return (ocs_be32toh(remote_sparms->common_service_parameters[1]) & (1U << 28)) == 0; | |||||
} | |||||
/** | |||||
* @brief Return the node's WWPN as an uint64_t. | |||||
* | |||||
* @par Description | |||||
* The WWPN is computed from service parameters, and returned as a uint64_t. | |||||
* | |||||
* @param sp Pointer to service parameters. | |||||
* | |||||
* @return Returns WWPN. | |||||
* | |||||
*/ | |||||
static uint64_t | |||||
ocs_get_wwpn(fc_plogi_payload_t *sp) | |||||
{ | |||||
return (((uint64_t)ocs_be32toh(sp->port_name_hi) << 32ll) | (ocs_be32toh(sp->port_name_lo))); | |||||
} | |||||
/** | |||||
* @brief Return TRUE if the remote node is the point-to-point winner. | |||||
* | |||||
* @par Description | |||||
* Compares WWPNs. Returns TRUE if the remote node's WWPN is numerically | |||||
* higher than the local node's WWPN. | |||||
* | |||||
* @param sport Pointer to the sport object. | |||||
* | |||||
* @return | |||||
* - 0, if the remote node is the loser. | |||||
* - 1, if the remote node is the winner. | |||||
* - (-1), if remote node is neither the loser nor the winner | |||||
* (WWPNs match) | |||||
*/ | |||||
static int32_t | |||||
ocs_rnode_is_winner(ocs_sport_t *sport) | |||||
{ | |||||
fc_plogi_payload_t *remote_sparms = (fc_plogi_payload_t*) sport->domain->flogi_service_params; | |||||
uint64_t remote_wwpn = ocs_get_wwpn(remote_sparms); | |||||
uint64_t local_wwpn = sport->wwpn; | |||||
char prop_buf[32]; | |||||
uint64_t wwn_bump = 0; | |||||
if (ocs_get_property("wwn_bump", prop_buf, sizeof(prop_buf)) == 0) { | |||||
wwn_bump = ocs_strtoull(prop_buf, 0, 0); | |||||
} | |||||
local_wwpn ^= wwn_bump; | |||||
remote_wwpn = ocs_get_wwpn(remote_sparms); | |||||
ocs_log_debug(sport->ocs, "r: %08x %08x\n", ocs_be32toh(remote_sparms->port_name_hi), ocs_be32toh(remote_sparms->port_name_lo)); | |||||
ocs_log_debug(sport->ocs, "l: %08x %08x\n", (uint32_t) (local_wwpn >> 32ll), (uint32_t) local_wwpn); | |||||
if (remote_wwpn == local_wwpn) { | |||||
ocs_log_warn(sport->ocs, "WWPN of remote node [%08x %08x] matches local WWPN\n", | |||||
(uint32_t) (local_wwpn >> 32ll), (uint32_t) local_wwpn); | |||||
return (-1); | |||||
} | |||||
return (remote_wwpn > local_wwpn); | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point state machine: Wait for the domain attach to complete. | |||||
* | |||||
* @par Description | |||||
* Once the domain attach has completed, a PLOGI is sent (if we're the | |||||
* winning point-to-point node). | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_p2p_wait_domain_attach(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_DOMAIN_ATTACH_OK: { | |||||
ocs_sport_t *sport = node->sport; | |||||
ocs_node_t *rnode; | |||||
/* this transient node (SID=0 (recv'd FLOGI) or DID=fabric (sent FLOGI)) | |||||
* is the p2p winner, will use a separate node to send PLOGI to peer | |||||
*/ | |||||
ocs_assert (node->sport->p2p_winner, NULL); | |||||
rnode = ocs_node_find(sport, node->sport->p2p_remote_port_id); | |||||
if (rnode != NULL) { | |||||
/* the "other" transient p2p node has already kicked off the | |||||
* new node from which PLOGI is sent */ | |||||
node_printf(node, "Node with fc_id x%x already exists\n", rnode->rnode.fc_id); | |||||
ocs_assert (rnode != node, NULL); | |||||
} else { | |||||
/* create new node (SID=1, DID=2) from which to send PLOGI */ | |||||
rnode = ocs_node_alloc(sport, sport->p2p_remote_port_id, FALSE, FALSE); | |||||
if (rnode == NULL) { | |||||
ocs_log_err(ocs, "node alloc failed\n"); | |||||
return NULL; | |||||
} | |||||
ocs_fabric_notify_topology(node); | |||||
/* sm: allocate p2p remote node */ | |||||
ocs_node_transition(rnode, __ocs_p2p_rnode_init, NULL); | |||||
} | |||||
/* the transient node (SID=0 or DID=fabric) has served its purpose */ | |||||
if (node->rnode.fc_id == 0) { | |||||
/* if this is the SID=0 node, move to the init state in case peer | |||||
* has restarted FLOGI discovery and FLOGI is pending | |||||
*/ | |||||
/* don't send PLOGI on ocs_d_init entry */ | |||||
ocs_node_init_device(node, FALSE); | |||||
} else { | |||||
/* if this is the DID=fabric node (we initiated FLOGI), shut it down */ | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
} | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point state machine: Remote node initialization state. | |||||
* | |||||
* @par Description | |||||
* This state is entered after winning point-to-point, and the remote node | |||||
* 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_p2p_rnode_init(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
/* sm: / send PLOGI */ | |||||
ocs_send_plogi(node, OCS_FC_ELS_SEND_DEFAULT_TIMEOUT, OCS_FC_ELS_DEFAULT_RETRIES, NULL, NULL); | |||||
ocs_node_transition(node, __ocs_p2p_wait_plogi_rsp, NULL); | |||||
break; | |||||
case OCS_EVT_ABTS_RCVD: | |||||
/* sm: send BA_ACC */ | |||||
ocs_bls_send_acc_hdr(cbdata->io, cbdata->header->dma.virt); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point node state machine: Wait for the FLOGI accept completion. | |||||
* | |||||
* @par Description | |||||
* Wait for the FLOGI accept completion. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_p2p_wait_flogi_acc_cmpl(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_SRRS_ELS_CMPL_OK: | |||||
ocs_assert(node->els_cmpl_cnt, NULL); | |||||
node->els_cmpl_cnt--; | |||||
/* sm: if p2p_winner / domain_attach */ | |||||
if (node->sport->p2p_winner) { | |||||
ocs_node_transition(node, __ocs_p2p_wait_domain_attach, NULL); | |||||
if (node->sport->domain->attached && | |||||
!(node->sport->domain->domain_notify_pend)) { | |||||
node_printf(node, "Domain already attached\n"); | |||||
ocs_node_post_event(node, OCS_EVT_DOMAIN_ATTACH_OK, NULL); | |||||
} | |||||
} else { | |||||
/* this node has served its purpose; we'll expect a PLOGI on a separate | |||||
* node (remote SID=0x1); return this node to init state in case peer | |||||
* restarts discovery -- it may already have (pending frames may exist). | |||||
*/ | |||||
/* don't send PLOGI on ocs_d_init entry */ | |||||
ocs_node_init_device(node, FALSE); | |||||
} | |||||
break; | |||||
case OCS_EVT_SRRS_ELS_CMPL_FAIL: | |||||
/* LS_ACC failed, possibly due to link down; shutdown node and wait | |||||
* for FLOGI discovery to restart */ | |||||
node_printf(node, "FLOGI LS_ACC failed, shutting down\n"); | |||||
ocs_assert(node->els_cmpl_cnt, NULL); | |||||
node->els_cmpl_cnt--; | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
case OCS_EVT_ABTS_RCVD: { | |||||
/* sm: / send BA_ACC */ | |||||
ocs_bls_send_acc_hdr(cbdata->io, cbdata->header->dma.virt); | |||||
break; | |||||
} | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point node state machine: Wait for a PLOGI response | |||||
* as a point-to-point winner. | |||||
* | |||||
* @par Description | |||||
* Wait for a PLOGI response from the remote node as a point-to-point winner. | |||||
* Submit node attach request to the HW. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_p2p_wait_plogi_rsp(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
int32_t rc; | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: { | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_PLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/* sm: / save sparams, ocs_node_attach */ | |||||
ocs_node_save_sparms(node, cbdata->els->els_rsp.virt); | |||||
rc = ocs_node_attach(node); | |||||
ocs_node_transition(node, __ocs_p2p_wait_node_attach, NULL); | |||||
if (rc == OCS_HW_RTN_SUCCESS_SYNC) { | |||||
ocs_node_post_event(node, OCS_EVT_NODE_ATTACH_OK, NULL); | |||||
} | |||||
break; | |||||
} | |||||
case OCS_EVT_SRRS_ELS_REQ_FAIL: { | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_PLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
node_printf(node, "PLOGI failed, shutting down\n"); | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
} | |||||
case OCS_EVT_PLOGI_RCVD: { | |||||
fc_header_t *hdr = cbdata->header->dma.virt; | |||||
/* if we're in external loopback mode, just send LS_ACC */ | |||||
if (node->ocs->external_loopback) { | |||||
ocs_send_plogi_acc(cbdata->io, ocs_be16toh(hdr->ox_id), NULL, NULL); | |||||
break; | |||||
} else{ | |||||
/* if this isn't external loopback, pass to default handler */ | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
} | |||||
break; | |||||
} | |||||
case OCS_EVT_PRLI_RCVD: | |||||
/* I, or I+T */ | |||||
/* sent PLOGI and before completion was seen, received the | |||||
* PRLI from the remote node (WCQEs and RCQEs come in on | |||||
* different queues and order of processing cannot be assumed) | |||||
* Save OXID so PRLI can be sent after the attach and continue | |||||
* to wait for PLOGI response | |||||
*/ | |||||
ocs_process_prli_payload(node, cbdata->payload->dma.virt); | |||||
ocs_send_ls_acc_after_attach(cbdata->io, cbdata->header->dma.virt, OCS_NODE_SEND_LS_ACC_PRLI); | |||||
ocs_node_transition(node, __ocs_p2p_wait_plogi_rsp_recvd_prli, NULL); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point node state machine: Waiting on a response for a | |||||
* sent PLOGI. | |||||
* | |||||
* @par Description | |||||
* State is entered when the point-to-point winner has sent | |||||
* a PLOGI and is waiting for a response. Before receiving the | |||||
* response, a PRLI was received, implying that the PLOGI was | |||||
* successful. | |||||
* | |||||
* @param ctx Remote node state machine context. | |||||
* @param evt Event to process. | |||||
* @param arg Per event optional argument. | |||||
* | |||||
* @return Returns NULL. | |||||
*/ | |||||
void * | |||||
__ocs_p2p_wait_plogi_rsp_recvd_prli(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
int32_t rc; | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
/* | |||||
* Since we've received a PRLI, we have a port login and will | |||||
* just need to wait for the PLOGI response to do the node | |||||
* attach and then we can send the LS_ACC for the PRLI. If, | |||||
* during this time, we receive FCP_CMNDs (which is possible | |||||
* since we've already sent a PRLI and our peer may have accepted). | |||||
* At this time, we are not waiting on any other unsolicited | |||||
* frames to continue with the login process. Thus, it will not | |||||
* hurt to hold frames here. | |||||
*/ | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_SRRS_ELS_REQ_OK: /* PLOGI response received */ | |||||
/* Completion from PLOGI sent */ | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_PLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
/* sm: / save sparams, ocs_node_attach */ | |||||
ocs_node_save_sparms(node, cbdata->els->els_rsp.virt); | |||||
ocs_display_sparams(node->display_name, "plogi rcvd resp", 0, NULL, | |||||
((uint8_t*)cbdata->els->els_rsp.virt) + 4); | |||||
rc = ocs_node_attach(node); | |||||
ocs_node_transition(node, __ocs_p2p_wait_node_attach, NULL); | |||||
if (rc == OCS_HW_RTN_SUCCESS_SYNC) { | |||||
ocs_node_post_event(node, OCS_EVT_NODE_ATTACH_OK, NULL); | |||||
} | |||||
break; | |||||
case OCS_EVT_SRRS_ELS_REQ_FAIL: /* PLOGI response received */ | |||||
case OCS_EVT_SRRS_ELS_REQ_RJT: | |||||
/* PLOGI failed, shutdown the node */ | |||||
if (node_check_els_req(ctx, evt, arg, FC_ELS_CMD_PLOGI, __ocs_fabric_common, __func__)) { | |||||
return NULL; | |||||
} | |||||
ocs_assert(node->els_req_cnt, NULL); | |||||
node->els_req_cnt--; | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @ingroup p2p_sm | |||||
* @brief Point-to-point node state machine: Wait for a point-to-point node attach | |||||
* to complete. | |||||
* | |||||
* @par Description | |||||
* Waits for the point-to-point node attach 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_p2p_wait_node_attach(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg) | |||||
{ | |||||
ocs_node_cb_t *cbdata = arg; | |||||
std_node_state_decl(); | |||||
node_sm_trace(); | |||||
switch(evt) { | |||||
case OCS_EVT_ENTER: | |||||
ocs_node_hold_frames(node); | |||||
break; | |||||
case OCS_EVT_EXIT: | |||||
ocs_node_accept_frames(node); | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_OK: | |||||
node->attached = TRUE; | |||||
switch (node->send_ls_acc) { | |||||
case OCS_NODE_SEND_LS_ACC_PRLI: { | |||||
ocs_d_send_prli_rsp(node->ls_acc_io, node->ls_acc_oxid); | |||||
node->send_ls_acc = OCS_NODE_SEND_LS_ACC_NONE; | |||||
node->ls_acc_io = NULL; | |||||
break; | |||||
} | |||||
case OCS_NODE_SEND_LS_ACC_PLOGI: /* Can't happen in P2P */ | |||||
case OCS_NODE_SEND_LS_ACC_NONE: | |||||
default: | |||||
/* Normal case for I */ | |||||
/* sm: send_plogi_acc is not set / send PLOGI acc */ | |||||
ocs_node_transition(node, __ocs_d_port_logged_in, NULL); | |||||
break; | |||||
} | |||||
break; | |||||
case OCS_EVT_NODE_ATTACH_FAIL: | |||||
/* node attach failed, shutdown the node */ | |||||
node->attached = FALSE; | |||||
node_printf(node, "Node attach failed\n"); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_fabric_initiate_shutdown(node); | |||||
break; | |||||
case OCS_EVT_SHUTDOWN: | |||||
node_printf(node, "%s received\n", ocs_sm_event_name(evt)); | |||||
node->shutdown_reason = OCS_NODE_SHUTDOWN_DEFAULT; | |||||
ocs_node_transition(node, __ocs_fabric_wait_attach_evt_shutdown, NULL); | |||||
break; | |||||
case OCS_EVT_PRLI_RCVD: | |||||
node_printf(node, "%s: PRLI received before node is attached\n", ocs_sm_event_name(evt)); | |||||
ocs_process_prli_payload(node, cbdata->payload->dma.virt); | |||||
ocs_send_ls_acc_after_attach(cbdata->io, cbdata->header->dma.virt, OCS_NODE_SEND_LS_ACC_PRLI); | |||||
break; | |||||
default: | |||||
__ocs_fabric_common(__func__, ctx, evt, arg); | |||||
return NULL; | |||||
} | |||||
return NULL; | |||||
} | |||||
/** | |||||
* @brief Start up the name services node. | |||||
* | |||||
* @par Description | |||||
* Allocates and starts up the name services node. | |||||
* | |||||
* @param sport Pointer to the sport structure. | |||||
* | |||||
* @return Returns 0 on success, or a negative error value on failure. | |||||
*/ | |||||
static int32_t | |||||
ocs_start_ns_node(ocs_sport_t *sport) | |||||
{ | |||||
ocs_node_t *ns; | |||||
/* Instantiate a name services node */ | |||||
ns = ocs_node_find(sport, FC_ADDR_NAMESERVER); | |||||
if (ns == NULL) { | |||||
ns = ocs_node_alloc(sport, FC_ADDR_NAMESERVER, FALSE, FALSE); | |||||
if (ns == NULL) { | |||||
return -1; | |||||
} | |||||
} | |||||
/* TODO: for found ns, should we be transitioning from here? | |||||
* breaks transition only 1. from within state machine or | |||||
* 2. if after alloc | |||||
*/ | |||||
if (ns->ocs->nodedb_mask & OCS_NODEDB_PAUSE_NAMESERVER) { | |||||
ocs_node_pause(ns, __ocs_ns_init); | |||||
} else { | |||||
ocs_node_transition(ns, __ocs_ns_init, NULL); | |||||
} | |||||
return 0; | |||||
} | |||||
/** | |||||
* @brief Start up the fabric controller node. | |||||
* | |||||
* @par Description | |||||
* Allocates and starts up the fabric controller node. | |||||
* | |||||
* @param sport Pointer to the sport structure. | |||||
* | |||||
* @return Returns 0 on success, or a negative error value on failure. | |||||
*/ | |||||
static int32_t | |||||
ocs_start_fabctl_node(ocs_sport_t *sport) | |||||
{ | |||||
ocs_node_t *fabctl; | |||||
fabctl = ocs_node_find(sport, FC_ADDR_CONTROLLER); | |||||
if (fabctl == NULL) { | |||||
fabctl = ocs_node_alloc(sport, FC_ADDR_CONTROLLER, FALSE, FALSE); | |||||
if (fabctl == NULL) { | |||||
return -1; | |||||
} | |||||
} | |||||
/* TODO: for found ns, should we be transitioning from here? | |||||
* breaks transition only 1. from within state machine or | |||||
* 2. if after alloc | |||||
*/ | |||||
ocs_node_transition(fabctl, __ocs_fabctl_init, NULL); | |||||
return 0; | |||||
} | |||||
/** | |||||
* @brief Process the GIDPT payload. | |||||
* | |||||
* @par Description | |||||
* The GIDPT payload is parsed, and new nodes are created, as needed. | |||||
* | |||||
* @param node Pointer to the node structure. | |||||
* @param gidpt Pointer to the GIDPT payload. | |||||
* @param gidpt_len Payload length | |||||
* | |||||
* @return Returns 0 on success, or a negative error value on failure. | |||||
*/ | |||||
static int32_t | |||||
ocs_process_gidpt_payload(ocs_node_t *node, fcct_gidpt_acc_t *gidpt, uint32_t gidpt_len) | |||||
{ | |||||
uint32_t i; | |||||
uint32_t j; | |||||
ocs_node_t *newnode; | |||||
ocs_sport_t *sport = node->sport; | |||||
ocs_t *ocs = node->ocs; | |||||
uint32_t port_id; | |||||
uint32_t port_count; | |||||
ocs_node_t *n; | |||||
ocs_node_t **active_nodes; | |||||
uint32_t portlist_count; | |||||
uint16_t residual; | |||||
residual = ocs_be16toh(gidpt->hdr.max_residual_size); | |||||
if (residual != 0) { | |||||
ocs_log_debug(node->ocs, "residual is %u words\n", residual); | |||||
} | |||||
if (ocs_be16toh(gidpt->hdr.cmd_rsp_code) == FCCT_HDR_CMDRSP_REJECT) { | |||||
node_printf(node, "GIDPT request failed: rsn x%x rsn_expl x%x\n", | |||||
gidpt->hdr.reason_code, gidpt->hdr.reason_code_explanation); | |||||
return -1; | |||||
} | |||||
portlist_count = (gidpt_len - sizeof(fcct_iu_header_t)) / sizeof(gidpt->port_list); | |||||
/* Count the number of nodes */ | |||||
port_count = 0; | |||||
ocs_sport_lock(sport); | |||||
ocs_list_foreach(&sport->node_list, n) { | |||||
port_count ++; | |||||
} | |||||
/* Allocate a buffer for all nodes */ | |||||
active_nodes = ocs_malloc(node->ocs, port_count * sizeof(*active_nodes), OCS_M_NOWAIT | OCS_M_ZERO); | |||||
if (active_nodes == NULL) { | |||||
node_printf(node, "ocs_malloc failed\n"); | |||||
ocs_sport_unlock(sport); | |||||
return -1; | |||||
} | |||||
/* Fill buffer with fc_id of active nodes */ | |||||
i = 0; | |||||
ocs_list_foreach(&sport->node_list, n) { | |||||
port_id = n->rnode.fc_id; | |||||
switch (port_id) { | |||||
case FC_ADDR_FABRIC: | |||||
case FC_ADDR_CONTROLLER: | |||||
case FC_ADDR_NAMESERVER: | |||||
break; | |||||
default: | |||||
if (!FC_ADDR_IS_DOMAIN_CTRL(port_id)) { | |||||
active_nodes[i++] = n; | |||||
} | |||||
break; | |||||
} | |||||
} | |||||
/* update the active nodes buffer */ | |||||
for (i = 0; i < portlist_count; i ++) { | |||||
port_id = fc_be24toh(gidpt->port_list[i].port_id); | |||||
for (j = 0; j < port_count; j ++) { | |||||
if ((active_nodes[j] != NULL) && (port_id == active_nodes[j]->rnode.fc_id)) { | |||||
active_nodes[j] = NULL; | |||||
} | |||||
} | |||||
if (gidpt->port_list[i].ctl & FCCT_GID_PT_LAST_ID) | |||||
break; | |||||
} | |||||
/* Those remaining in the active_nodes[] are now gone ! */ | |||||
for (i = 0; i < port_count; i ++) { | |||||
/* if we're an initiator and the remote node is a target, then | |||||
* post the node missing event. if we're target and we have enabled | |||||
* target RSCN, then post the node missing event. | |||||
*/ | |||||
if (active_nodes[i] != NULL) { | |||||
if ((node->sport->enable_ini && active_nodes[i]->targ) || | |||||
(node->sport->enable_tgt && enable_target_rscn(ocs))) { | |||||
ocs_node_post_event(active_nodes[i], OCS_EVT_NODE_MISSING, NULL); | |||||
} else { | |||||
node_printf(node, "GID_PT: skipping non-tgt port_id x%06x\n", | |||||
active_nodes[i]->rnode.fc_id); | |||||
} | |||||
} | |||||
} | |||||
ocs_free(ocs, active_nodes, port_count * sizeof(*active_nodes)); | |||||
for(i = 0; i < portlist_count; i ++) { | |||||
uint32_t port_id = fc_be24toh(gidpt->port_list[i].port_id); | |||||
/* node_printf(node, "GID_PT: port_id x%06x\n", port_id); */ | |||||
/* Don't create node for ourselves */ | |||||
if (port_id != node->rnode.sport->fc_id) { | |||||
newnode = ocs_node_find(sport, port_id); | |||||
if (newnode) { | |||||
/* TODO: what if node deleted here?? */ | |||||
if (node->sport->enable_ini && newnode->targ) { | |||||
ocs_node_post_event(newnode, OCS_EVT_NODE_REFOUND, NULL); | |||||
} | |||||
/* original code sends ADISC, has notion of "refound" */ | |||||
} else { | |||||
if (node->sport->enable_ini) { | |||||
newnode = ocs_node_alloc(sport, port_id, 0, 0); | |||||
if (newnode == NULL) { | |||||
ocs_log_err(ocs, "ocs_node_alloc() failed\n"); | |||||
ocs_sport_unlock(sport); | |||||
return -1; | |||||
} | |||||
/* send PLOGI automatically if initiator */ | |||||
ocs_node_init_device(newnode, TRUE); | |||||
} | |||||
} | |||||
} | |||||
if (gidpt->port_list[i].ctl & FCCT_GID_PT_LAST_ID) { | |||||
break; | |||||
} | |||||
} | |||||
ocs_sport_unlock(sport); | |||||
return 0; | |||||
} | |||||
/** | |||||
* @brief Set up the domain point-to-point parameters. | |||||
* | |||||
* @par Description | |||||
* The remote node service parameters are examined, and various point-to-point | |||||
* variables are set. | |||||
* | |||||
* @param sport Pointer to the sport object. | |||||
* | |||||
* @return Returns 0 on success, or a negative error value on failure. | |||||
*/ | |||||
int32_t | |||||
ocs_p2p_setup(ocs_sport_t *sport) | |||||
{ | |||||
ocs_t *ocs = sport->ocs; | |||||
int32_t rnode_winner; | |||||
rnode_winner = ocs_rnode_is_winner(sport); | |||||
/* set sport flags to indicate p2p "winner" */ | |||||
if (rnode_winner == 1) { | |||||
sport->p2p_remote_port_id = 0; | |||||
sport->p2p_port_id = 0; | |||||
sport->p2p_winner = FALSE; | |||||
} else if (rnode_winner == 0) { | |||||
sport->p2p_remote_port_id = 2; | |||||
sport->p2p_port_id = 1; | |||||
sport->p2p_winner = TRUE; | |||||
} else { | |||||
/* no winner; only okay if external loopback enabled */ | |||||
if (sport->ocs->external_loopback) { | |||||
/* | |||||
* External loopback mode enabled; local sport and remote node | |||||
* will be registered with an NPortID = 1; | |||||
*/ | |||||
ocs_log_debug(ocs, "External loopback mode enabled\n"); | |||||
sport->p2p_remote_port_id = 1; | |||||
sport->p2p_port_id = 1; | |||||
sport->p2p_winner = TRUE; | |||||
} else { | |||||
ocs_log_warn(ocs, "failed to determine p2p winner\n"); | |||||
return rnode_winner; | |||||
} | |||||
} | |||||
return 0; | |||||
} | |||||
/** | |||||
* @brief Process the FABCTL node RSCN. | |||||
* | |||||
* <h3 class="desc">Description</h3> | |||||
* Processes the FABCTL node RSCN payload, simply passes the event to the name server. | |||||
* | |||||
* @param node Pointer to the node structure. | |||||
* @param cbdata Callback data to pass forward. | |||||
* | |||||
* @return None. | |||||
*/ | |||||
static void | |||||
ocs_process_rscn(ocs_node_t *node, ocs_node_cb_t *cbdata) | |||||
{ | |||||
ocs_t *ocs = node->ocs; | |||||
ocs_sport_t *sport = node->sport; | |||||
ocs_node_t *ns; | |||||
/* Forward this event to the name-services node */ | |||||
ns = ocs_node_find(sport, FC_ADDR_NAMESERVER); | |||||
if (ns != NULL) { | |||||
ocs_node_post_event(ns, OCS_EVT_RSCN_RCVD, cbdata); | |||||
} else { | |||||
ocs_log_warn(ocs, "can't find name server node\n"); | |||||
} | |||||
} |