/* BEGIN_ICS_COPYRIGHT7 ****************************************

Copyright (c) 2015-2017, Intel Corporation

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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.
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      documentation and/or other materials provided with the distribution.
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      may be used to endorse or promote products derived from this software
      without specific prior written permission.

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** END_ICS_COPYRIGHT7   ****************************************/

/* [ICS VERSION STRING: unknown] */

//===========================================================================//
//									     //
// FILE NAME								     //
//    sm_async.c							     //
//									     //
// DESCRIPTION								     //
//    This thread receives the asynchronous MADs from the fabric and 	     //
//    processes them.  These MADs include SubnGet(SMInfo), 		     //
//    SubnSet(SMInfo), Trap(*).						     //
//									     //
// DATA STRUCTURES							     //
//    NONE								     //
//									     //
// FUNCTIONS								     //
//    NONE								     //
//									     //
// DEPENDENCIES								     //
//    ib_types.h							     //
//    ib_mad.h								     //
//    ib_status.h							     //
//									     //
//									     //
//===========================================================================//

#include "os_g.h"
#include "ib_types.h"
#include "ib_mad.h"
#include "ib_status.h"
#include "ib_macros.h"
#include "cs_g.h"
#include "mai_g.h"
#include "sm_counters.h"
#include "sm_l.h"
#include "sa_l.h"
#include "cs_context.h"
#include "cs_queue.h"
#include "sm_dbsync.h"

#ifdef __VXWORKS__
#include "tms/idb/icsSmMib.h"
#endif

extern	IBhandle_t	fd_sminfo;
extern	Status_t policy_main(Mai_t *);
extern	Status_t policy_topology(Mai_t *);
extern	Status_t policy_node(Mai_t *);
extern	Status_t policy_port(Mai_t *);
extern	Status_t policy_send_data(Mai_t *, uint8_t *, uint32_t);
extern  Status_t sm_sa_forwardNotice(STL_NOTICE * noticep);
extern  int      sm_sa_getNoticeCount (STL_NOTICE * noticep);

#ifdef __VXWORKS__
extern  uint32_t sm_trapThreshold;
extern  uint8_t  sa_dynamicPlt[];
extern  STL_LID sm_mcast_mlid_table_cap;

char    pkey_description[100];
#endif

static  int async_main_exit = 0;
static  uint64_t new_sm_timer = 0xffffffffffffffffull;

// SM Notice context pool
generic_cntxt_t  sm_notice_cntxt;

static  uint32_t sm_notice_max_context = 0;
static  uint32_t sm_trap_forward_queue_size = 0;


// SM-SA trap forward request queue
cs_Queue_ptr sm_trap_forward_queue;


//
// process trap forward requests from the SM and SA
//
void sm_process_trap_forward_requests(void) {
    STL_NOTICE    *noticep    = NULL;
    uint32_t	pktcount	= 0;

	IB_ENTER(__func__, 0, 0, 0, 0);
    if ((noticep = (STL_NOTICE *)cs_queue_Front( sm_trap_forward_queue )) != NULL) {
        pktcount = sm_sa_getNoticeCount(noticep);
        /* 
         * we want to hold off sending out new notices until all responses to previous notice are ACK'd 
         * we do that by waiting for numFree to equal poolSize again
         */
        if (pktcount && pktcount <= sm_notice_cntxt.numFree &&
            sm_notice_cntxt.numFree == sm_notice_cntxt.poolSize) {
            // forward trap reliably
            sm_sa_forwardNotice(noticep);
            // remove queue front entry after successful transmission
            cs_queue_Dequeue( sm_trap_forward_queue );
            // free the notice space
            vs_pool_free(&sm_pool, noticep);
        } else if (pktcount && pktcount > sm_notice_cntxt.numFree) {
			// this only happens if size of fabric exceeds SubnetSize
            IB_LOG_VERBOSE("not enough context available",
                               sm_notice_cntxt.numFree);
        } else if (!pktcount){
            /* remove queue front since no one cares about this event */
            cs_queue_Dequeue( sm_trap_forward_queue );
            /* free the notice space */
            vs_pool_free(&sm_pool, noticep);
        }
    }
	IB_EXIT(__func__, 0);
}

//
// initialize static data
//
void
async_init(void) {
	
	IB_ENTER(__func__, 0, 0, 0, 0);
	
	sm_notice_max_context = sm_config.subnet_size + (sm_config.subnet_size / 10);
	sm_trap_forward_queue_size = MAX(1536, 2 * sm_notice_max_context);
	
	IB_EXIT(__func__, 0);
}

void
async_main(uint32_t argc, uint8_t ** argv) {
	uint64_t	now, nextTime;
	uint64_t	delta_time;
	Status_t	status;
	Filter_t	filter;
	Mai_t		mad;
    uint64_t	lastTimeAged=0, timeout=0;
    uint64_t    lastTimeDiscoveryRequested=0;
    uint32_t    index = 99;
    IBhandle_t  handles[2];
	int			lastState;
    uint64_t    lastTimePortChecked=0;
	uint8_t		path[64], localPortFailure=0;
	STL_PORT_INFO	portInfo;

	IB_ENTER(__func__, 0, 0, 0, 0);

//
//      Get my thread name.
//
	(void)vs_thread_name(&sm_threads[SM_THREAD_ASYNC].name);

//
//	Shutdown any previous version of the SM which may be running.
//
	(void)sm_control_init();
	(void)sm_control_notify();

    //
    // initialize Sm Notice context pool
    //
    memset((void *)&sm_notice_cntxt, 0, sizeof(sm_notice_cntxt));
    sm_notice_cntxt.hashTableDepth = CNTXT_HASH_TABLE_DEPTH;
    sm_notice_cntxt.poolSize = sm_notice_max_context;
    sm_notice_cntxt.maxRetries = sm_config.max_retries;
    sm_notice_cntxt.ibHandle = fd_saTrap;
    sm_notice_cntxt.errorOnSendFail = 0;
#ifdef IB_STACK_OPENIB
	// for openib we let umad do the timeouts.  Hence we add 1 second to
	// the timeout as a safety net just in case umad loses our response.
    sm_notice_cntxt.timeoutAdder = VTIMER_1S;
#endif
    timeout = sm_config.rcv_wait_msec * 1000;
    status = cs_cntxt_instance_init (&sm_pool, &sm_notice_cntxt, timeout);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: failed to initialize the SM context instance, status=%d", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}
    //
    // initialize the SM-SA trap forward request queue
    //
    if ((sm_trap_forward_queue = cs_queue_CreateQueue( &sm_pool, sm_trap_forward_queue_size )) == NULL) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: failed to initialize the SM-SA trap forward queue, terminating");
		IB_LOG_ERROR0("failed to initialize the SM-SA trap forward queue, terminating");
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
    }

	//
	//	Init dispatcher.
	//
	status = sm_dispatch_init(&sm_asyncDispatch, sm_config.max_parallel_reqs);
	if (status != VSTATUS_OK) {
		IB_LOG_WARNRC("failed to initialize dispatcher, rc:", status);
		return;
	}
	
    //
    //	Create the Subn*(SMInfo) MAD filters for the state thread.
    //
	SM_Filter_Init(&filter);
	filter.value.bversion = STL_BASE_VERSION;
	filter.value.cversion = STL_SM_CLASS_VERSION;
	filter.value.mclass = MAD_CV_SUBN_LR & 0x7f;	// LR or DR
	filter.value.method = MAD_CM_GET;
	filter.value.aid = MAD_SMA_SMINFO;

	filter.mask.bversion  = 0xff;
	filter.mask.cversion  = 0xff;
	filter.mask.mclass  = 0x7f;
	filter.mask.method  = 0xff;
	filter.mask.aid  = 0xffff;
	MAI_SET_FILTER_NAME (&filter, "sm_async");

	status = mai_filter_create(fd_async, &filter, VFILTER_SHARE);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: can't create Get(SMInfo) filter %d", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}
	SM_Filter_Init(&filter);
	filter.value.bversion = STL_BASE_VERSION;
	filter.value.cversion = STL_SM_CLASS_VERSION;
	filter.value.mclass = MAD_CV_SUBN_LR & 0x7f;	// LR or DR
	filter.value.method = MAD_CM_SET;
	filter.value.aid = MAD_SMA_SMINFO;

	filter.mask.bversion  = 0xff;
	filter.mask.cversion  = 0xff;
	filter.mask.mclass  = 0x7f;
	filter.mask.method  = 0xff;
	filter.mask.aid  = 0xffff;
	MAI_SET_FILTER_NAME (&filter, "sm_async");

	status = mai_filter_create(fd_async, &filter, VFILTER_SHARE);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: can't create Set(SMInfo) filter %d", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}

    //
    //	Create the Trap(*) MAD filter for the trap thread.
    //
	SM_Filter_Init(&filter);
	filter.value.mclass = MAD_CV_SUBN_LR;
	filter.value.method = MAD_CM_TRAP;
	filter.mask.mclass  = MAI_FMASK_ALL;
	filter.mask.method  = 0xff;
	MAI_SET_FILTER_NAME (&filter, "sm_async");

	status = mai_filter_create(fd_async, &filter, VFILTER_SHARE);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: can't create Trap(*) filter %s", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}

    //
    //	Set the filter for catching just CM_REPORT responses on fd_saTrap.
    //
	SA_Filter_Init(&filter);
	filter.value.mclass = MAD_CV_SUBN_ADM;
	filter.value.method = MAD_CM_REPORT_RESP;
	filter.value.aid = SA_NOTICE;
	filter.mask.mclass  = 0xff;
	filter.mask.method  = 0xff;
	filter.mask.aid  = 0xffff;
	MAI_SET_FILTER_NAME (&filter, "sm_saTrap");

	status = mai_filter_create(fd_saTrap, &filter, VFILTER_SHARE | VFILTER_PURGE);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: can't create CM_REPORT_RESP filter %d", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}

    //
    //	Set the filter for catching just CM_REPORT errors on fd_saTrap.
    //
	SA_Filter_Init(&filter);

	filter.type = MAI_TYPE_ERROR;
	filter.value.mclass = MAD_CV_SUBN_ADM;
	filter.value.method = MAD_CM_REPORT;
	filter.value.aid = SA_NOTICE;
	filter.mask.mclass  = 0xff;
	filter.mask.method  = 0xff;
	filter.mask.aid  = 0xffff;
	MAI_SET_FILTER_NAME (&filter, "sm_saTrap_error");

	status = mai_filter_create(fd_saTrap, &filter, VFILTER_SHARE | VFILTER_PURGE);
	if (status != VSTATUS_OK) {
		smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
			"sm_async: can't create CM_REPORT error filter %d", status);
		(void)vs_thread_exit(&sm_threads[SM_THREAD_ASYNC].handle);
	}

    //
    //	Start up the topology thread.
    //
	sm_trigger_sweep(SM_SWEEP_REASON_INIT);

    //
    //	All this thread does is read MADs and hand them off to the correct
    //	thread to process.
    //
	async_main_exit = 0;
    new_sm_timer = 0xffffffffffffffffull;
	delta_time = 50000ull;  /* 1/20 second in usecs */

    (void)vs_time_get(&lastTimeAged);
    nextTime = lastTimeAged + sm_masterCheckInterval;

    handles[0] = fd_async;
    handles[1] = fd_saTrap;
	while (1) {
        status = mai_recv_handles(handles, 2, delta_time, &index, &mad);

        if (status == VSTATUS_OK) {
            if ((mad.base.cversion != SA_MAD_CVERSION && mad.base.cversion != STL_SA_CLASS_VERSION) &&
                mad.base.bversion != MAD_BVERSION && mad.base.bversion != STL_BASE_VERSION)
                continue;

            /* see which handle had data */
            switch (index) {
            case 0:
                /* process switch traps and sminfo requests on fd_async */
                switch (mad.type) {
                case MAI_TYPE_EXTERNAL:
                    switch (mad.base.method) {
                    case MAD_CM_TRAP:
                        if (sm_state == SM_STATE_MASTER) {
                            (void)sa_Trap(&mad);
                        }
                        break;
                    case MAD_CM_GET:
						INCREMENT_COUNTER(smCounterRxGetSmInfo);
                        (void)state_event_mad(&mad);
                        break;
                    case MAD_CM_SET:
						INCREMENT_COUNTER(smCounterRxSetSmInfo);
                        (void)state_event_mad(&mad);
                        break;
                    default:
						smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
                        	"sm_async: bad method received on trap/sminfo file descriptor (QP0), method=%d", 
                                     mad.base.method);
                        (void)sm_dump_mai("sm_async", &mad);
                        break;
                    }
                    break;
                case MAI_TYPE_INTERNAL:
                    (void)sm_control(&mad);
                    break;
                default:
                    break;
                }
                break;
            case 1:
                /* process notification ACK on fd_saTrap */
                switch (mad.type) {
                case MAI_TYPE_EXTERNAL:
                    switch (mad.base.method) {
                    case MAD_CM_REPORT_RESP:
						INCREMENT_COUNTER(smCounterSaRxReportResponse);
                        cs_cntxt_find_release(&mad, &sm_notice_cntxt);
                        break;
                    default:
						smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
                        	"sm_async: bad method received on notice file descriptor (QP1), method=%d", mad.base.method);
                        (void)sm_dump_mai("sm_async", &mad);
                        break;
                    }
                    break;
				case MAI_TYPE_ERROR:
					// only happens for openib.  This return indicated the
					// lower level stack has returned our original sent MAD
					// to indicate a failure sending it or a lack of a response
                    switch (mad.base.method) {
                    case MAD_CM_REPORT:
                        cs_cntxt_find_release_error(&mad, &sm_notice_cntxt);
                        break;
                    default:
						smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
                        	"sm_async: bad method received on notice error file descriptor (QP1), method=%d", mad.base.method);
                        (void)sm_dump_mai("sm_async", &mad);
                        break;
                    }
                    break;
                default:
                    break;
                }
                break;
            default:
                break;
            }
        } else if (status != VSTATUS_TIMEOUT) {
			smCsmLogMessage(CSM_SEV_NOTICE, CSM_COND_OTHER_ERROR, getMyCsmNodeId(), NULL,
           		"sm_async: receive error on notice or trap file descriptor, status=%d", status);
        } else {
            /* now process any trap forward requests on the queue */
            sm_process_trap_forward_requests();
        }

        /* age the trap forwarding context entries if necessary */
        (void)vs_time_get(&now);
        if ((now - lastTimeAged) >= 100000ull) {
            cs_cntxt_age(&sm_notice_cntxt);
            lastTimeAged = now;
        }

		if(async_main_exit == 1){
#ifdef __VXWORKS__
			ESM_LOG_ESMINFO("SM Async Task exiting OK.", 0);
#endif
            /* set sm state to inactive and release topology thread, if required */
			lastState = sm_state;
            (void)sm_transition(SM_STATE_NOTACTIVE);
			if (lastState == SM_STATE_STANDBY) {
				(void)state_event_timeout();
			}
            sm_trigger_sweep(SM_SWEEP_REASON_UNDETERMINED);
			break;
		}

        /* check for sweep rate change */
        if (new_sm_timer != 0xffffffffffffffffull) {
            /* 
             * If we were not sweeping and now want to, we must force the wakeup time to be set 
             */
            if (sm_config.timer == 0) {
                topology_wakeup_time = 1;
            } else if (new_sm_timer == 0) {
                /* we don't want to sweep at all starting now */
                topology_wakeup_time = 0;
            }
            sm_config.timer = new_sm_timer;
            new_sm_timer = 0xffffffffffffffffull;
			
			// May be set to INTERVAL_CHANGE in sm_SetSweepRate
			setResweepReason(SM_SWEEP_REASON_FORCED);

            /* force wakeup of topology thread now if waiting on semaphore */
            if (sm_config.timer != 0 && topology_wakeup_time > 0ull) 
                topology_wakeup_time = now;
        }

        /* 
         * If a change trap is received, we signal sm_top to rediscover the fabric  
         * Wait one second to allow traps to accumulate before asking
         */
		/*  PR 111216 - Even in case we have not received any traps, check the state of our
		 *  local port. After a switch reboot, we do not get any traps but our local
		 *  port can go DOWN and come to INIT state and if we are master, it will stay like
		 *  that until we do a sweep. In such a scenario, we need to request a Fabric
		 *  Discovery. Do this checking only once every 2 seconds as we will come here every
		 *  1/20th of a second due to the mai_recv_handles time out above.
		 *	
		 *  Its possible that we might be in INIT state because our HFI port went down
		 *  and came back up for some other reason and we are checking our port before the
		 *  switch got a chance to send a trap. But that still should not cause an
		 *  immediate double sweep even if the switch sends a trap immediately after
		 *  this, as we anyway throttle traps that come with in 1 second of having
		 *  requested a sweep.
		 */
		/* First time we come here, we will always check port state as lastTimePortChecked will be 0*/
		if ((sm_state == SM_STATE_MASTER) && !smFabricDiscoveryNeeded && !isSweeping && 
			((now - lastTimePortChecked) > (VTIMER_1S * 2))) {
			memset((void *)path, 0, 64);
			status = SM_Get_PortInfo(fd_sminfo, 1<<24, path, &portInfo);
			if (status != VSTATUS_OK) {
				IB_LOG_ERRORRC("can't get SM port PortInfo rc:", status);
			} else {
				if (portInfo.PortStates.s.PortState <= IB_PORT_INIT) {
					localPortFailure = 1;
					smFabricDiscoveryNeeded = 1;
				}
			}
			lastTimePortChecked = now;	
		}
        if (smFabricDiscoveryNeeded && lastTimeDiscoveryRequested == 0) {
            lastTimeDiscoveryRequested = now;
        } else if (smFabricDiscoveryNeeded) {
            uint64_t time_interval = VTIMER_1S;

            if (sm_resweep_reason == SM_SWEEP_REASON_TRAP_EVENT) time_interval *= sm_config.trap_hold_down;

            if ((now - lastTimeDiscoveryRequested) > time_interval) {
				// At this point discovery needed due to multiple traps (re-sweep reason already
				// set); or local port failure.
				if (localPortFailure) {
					localPortFailure = 0;
					setResweepReason(SM_SWEEP_REASON_LOCAL_PORT_FAIL);
				}
                topology_wakeup_time = now;
                /* clear the indicators */
                lastTimeDiscoveryRequested = 0;
                smFabricDiscoveryNeeded = 0;
            }
        }

		if (topology_wakeup_time > 0ull) {
            /* standby must check on master every sm_masterCheckInterval seconds */
			if (((sm_state == SM_STATE_DISCOVERING || sm_state == SM_STATE_MASTER)
			      && now >= topology_wakeup_time)
				|| ((sm_state == SM_STATE_STANDBY || (sm_state == SM_STATE_MASTER && sm_config.monitor_standby_enable))
					 && now >= nextTime)) {
                nextTime = now + sm_masterCheckInterval;
				(void)state_event_timeout();
			}
		}
	}

	/* release the SM context pool */
    status = cs_cntxt_instance_free (&sm_pool, &sm_notice_cntxt);
    /* free the SM trap foward request queue */
    cs_queue_DisposeQueue( &sm_pool, sm_trap_forward_queue );
	sm_dispatch_destroy(&sm_asyncDispatch);
}


void
async_main_kill(void){
	async_main_exit = 1;
}

uint32_t sm_getSweepRate(void) {
    return sm_config.timer/1000000;
}

void sm_setSweepRate(uint32_t rate) {
	uint8_t isValid = 1;
    /* 0 or 3 seconds to 86400 seconds (24 hours) */
    if (rate < 3 || rate > 86400) {
        if (rate == 0) {
            new_sm_timer = 0;
        } else {
            printf("sm_setSweepRate: Sweep rate must be between 3 and 86400 (24 hrs) seconds!\n");
			isValid = 0;
        }
    } else {
        new_sm_timer = rate;
        new_sm_timer *= 1000000;
    }

	if (isValid) setResweepReason(SM_SWEEP_REASON_INTERVAL_CHANGE);
}

void sm_forceSweep(const char* reason) {
	if (new_sm_timer == 0xffffffffffffffffull) {
		IB_LOG_INFINI_INFO_FMT(__func__, "SM Forced Sweep scheduled: %s", reason);
	}
    new_sm_timer = sm_config.timer;
}

// send the XML configuration file to all standby and inactive SM's
int sm_send_xml_file(uint8_t activate) {
	
	SMDBSyncFilep syncFile = NULL;


	if (sm_state != SM_STATE_MASTER) {
		return -2;
	}

	syncFile = malloc(sizeof(SMDBSyncFile_t));
	if (syncFile == NULL) {
		return -2;
	}

	syncFile->version = DBSYNC_FILE_TRANSPORT_VERSION;
	syncFile->length = sizeof(SMDBSyncFile_t);
	cs_strlcpy(syncFile->name, "opafm.xml", SMDBSYNCFILE_NAME_LEN);
	syncFile->type = DBSYNC_FILE_XML_CONFIG;
	syncFile->activate = activate;

	// sync the file to all standby SM's
	sm_dbsync_syncFile(DBSYNC_TYPE_BROADCAST_FILE, syncFile);
	free(syncFile);

	return 0;
}

#ifdef __VXWORKS__

uint32_t sm_getPriority(void) {
	return sm_config.priority;
}

uint32_t sm_getElevatedPriority(void) {
	return sm_config.elevated_priority;
}

uint32_t sm_getPmPriority(void) {
	return pm_config.priority;
}

uint32_t sm_getPmElevatedPriority(void) {
	return pm_config.elevated_priority;
}

uint32_t sm_getLMC(void) {
	return sm_config.lmc;
}

uint8_t sm_getSwitchLifetime(void) {
	return sm_config.switch_lifetime_n2;
}

uint8_t sm_getHoqLife(void) {
	return sm_config.hoqlife_n2;
}

uint8_t sm_getVLStall(void) {
	return sm_config.vlstall;
}

uint32_t sm_getPltValue(uint32_t index) {
	if (index < 1 || index > 9)
		return 0;
	return sa_dynamicPlt[index];
}

int sm_getDynamicPltSupport(void) {
	return sa_dynamicPlt[0];
}

unsigned long long sm_getMKey(void) {
	return sm_config.mkey;
}

unsigned long long sm_getKey(void) {
	return sm_config.sm_key;
}

unsigned long long sm_getGidPrefix(void) {
	return sm_config.subnet_prefix;
}

uint32_t sm_getSubnetSize(void) {
	return sm_config.subnet_size;
}

uint32_t sm_getTopoErrorThreshold(void) {
	return sm_config.topo_errors_threshold;
}

uint32_t sm_getTopoAbandonThreshold(void) {
	return sm_config.topo_abandon_threshold;
}

uint32_t sm_getMaxRetries(void) {
	return sm_config.max_retries;
}

uint32_t sm_getRcvWaitTime(void) {
	return sm_config.rcv_wait_msec;
}

uint32_t sm_getNonRespDropTime(void) {
	return sm_config.non_resp_tsec;
}

uint32_t sm_getNonRespDropSweeps(void) {
	return sm_config.non_resp_max_count;
}

uint32_t sm_getMcLidTableCap(void) {
	return sm_mcast_mlid_table_cap;
}

uint32_t sm_getMasterPingInterval(void) {
	return (sm_masterCheckInterval / VTIMER_1S);
}

uint32_t sm_getMasterPingFailures(void) {
	return sm_config.master_ping_max_fail;
}

uint32_t sm_getDbSyncInterval(void) {
	return sm_config.db_sync_interval;
}

uint32_t sm_getTrapThreshold(void) {
	return sm_trapThreshold;
}

uint32_t sm_getAppearanceMsgThresh(void) {
	return sm_config.node_appearance_msg_thresh ;
}

uint32_t sm_getMcastCheck(void) {
	return sm_mc_config.disable_mcast_check;
}

void acquireVfLock(void) {
	(void)vs_rdlock(&old_topology_lock);
}

void releaseVfLock(void) {
	(void)vs_rwunlock(&old_topology_lock);
}

// number of virtual fabrics
uint32_t sm_numberOfVfs(void) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	if (VirtualFabrics == NULL)
		return 0;
	return VirtualFabrics->number_of_vfs_all;
}

// virtual fabric name given index
char* sm_VfName(uint32_t index) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	if (VirtualFabrics == NULL)
		return NULL;
	if (VirtualFabrics->number_of_vfs_all == 0)
		return NULL;
	if (index >= VirtualFabrics->number_of_vfs_all)
		return NULL;
	return VirtualFabrics->v_fabric_all[index].name; 
}

// number of multicast groups given virtual fabric name
uint32_t sm_numberOfVfMcastGroups(char* vfName) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);
	if (vf == NULL)
		return 0;
	return vf->number_of_default_groups;
}

uint32_t sm_getMibOptionFlags(void) {

	uint32_t flags = 0;
	VF_t *vfp = NULL;

	(void)vs_rdlock(&old_topology_lock);
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;

	if (VirtualFabrics != NULL) {
		int vf;
		// find first active vf
		for (vf = 0; vf < VirtualFabrics->number_of_vfs_all; vf++) {
			if (VirtualFabrics->v_fabric_all[vf].standby) continue;
			vfp = &VirtualFabrics->v_fabric_all[vf];
		}

		// get the SM_CREATE_MCGRP_MASK option flag
		if (VirtualFabrics->number_of_vfs_all != 0 && vfp->default_group != NULL) {
			if (vfp->default_group->def_mc_create)
				flags |= SM_CREATE_MCGRP_MASK;
		}
	}

	// get the SM_DYNAMICPLT_MASK option flag
	if (sa_dynamicPlt[0])
		flags |= SM_DYNAMICPLT_MASK;

	// get the SM_COMMON_MCAST_MTU_RATE option flag
	if (sm_mc_config.disable_mcast_check)
		flags |= SM_COMMON_MCAST_MTU_RATE;

	(void)vs_rwunlock(&old_topology_lock);

	return flags;
}

// virtual fabric PKey given name
uint16_t sm_getMibPKey(char* vfName) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);
	if (vf == NULL)
		return 0;
	return vf->pkey;
}

// virtual fabric PKey description
char* sm_getMibPKeyDescription(char* vfName) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);
	if (vf == NULL)
		cs_strlcpy(pkey_description, "Default PKey", sizeof(pkey_description));
	else 
		sprintf(pkey_description, "Virtual Fabric - %s", vf->name);
	return pkey_description;
}

// virtual fabric Multicast Group PKey 
uint16_t sm_getDefMcGrpPKey(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_pkey;
}

// virtual fabric Multicast Group MTU
uint8_t sm_getDefMcGrpMtu(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_mtu_int;
}

// virtual fabric Multicast Group Rate Int
uint8_t sm_getDefMcGrpRate(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_rate_int;
}

// virtual fabric Multicast Group Service Level
uint8_t sm_getDefMcGrpSl(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_sl;
}

// virtual fabric Multicast Group QKey
uint32_t sm_getDefMcGrpQKey(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_qkey;
}

// virtual fabric Multicast Group Flow Label
uint32_t sm_getDefMcGrpFlowLabel(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_fl;
}

// virtual fabric Multicast Group TClass
uint8_t sm_getDefMcGrpTClass(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_tc;
}

// virtual fabric Multicast Create
uint8_t sm_getDefMcGrpCreate(char* vfName, uint32_t group) {
	VirtualFabrics_t* VirtualFabrics = old_topology.vfs_ptr;
	VFDg_t* g;
	uint32_t i = 0;
	VF_t* vf = findVfPointer(VirtualFabrics, vfName);

	if (vf == NULL || group > vf->number_of_default_groups - 1)
		return 0;
	g = vf->default_group;
	while (i++ < group) 
		g = g->next_default_group;

	return g->def_mc_create;
}

#endif // __VXWORKS__

