ib_api_status_t osm_prtn_add_mcgroup(osm_log_t * p_log, osm_subn_t * p_subn,
osm_prtn_t * p, uint8_t rate, uint8_t mtu,
uint8_t sl, uint8_t scope, uint32_t Q_Key,
uint8_t tclass, uint32_t FlowLabel,
const ib_gid_t *mgid)
{
char gid_str[INET6_ADDRSTRLEN];
ib_member_rec_t mc_rec;
ib_net64_t comp_mask;
ib_net16_t pkey;
osm_mgrp_t *mgrp;
osm_sa_t *p_sa = &p_subn->p_osm->sa;
uint8_t hop_limit;
pkey = p->pkey | cl_hton16(0x8000);
if (!scope)
scope = OSM_DEFAULT_MGRP_SCOPE;
hop_limit = (scope == IB_MC_SCOPE_LINK_LOCAL) ? 0 : IB_HOPLIMIT_MAX;
memset(&mc_rec, 0, sizeof(mc_rec));
mc_rec.mgid = *mgid;
mc_rec.qkey = CL_HTON32(Q_Key);
mc_rec.mtu = mtu | (IB_PATH_SELECTOR_EXACTLY << 6);
mc_rec.tclass = tclass;
mc_rec.pkey = pkey;
mc_rec.rate = rate | (IB_PATH_SELECTOR_EXACTLY << 6);
mc_rec.pkt_life = p_subn->opt.subnet_timeout;
mc_rec.sl_flow_hop = ib_member_set_sl_flow_hop(sl, FlowLabel, hop_limit);
/* Scope in MCMemberRecord (if present) needs to be consistent with MGID */
mc_rec.scope_state =
ib_member_set_scope_state(scope, IB_MC_REC_STATE_FULL_MEMBER);
ib_mgid_set_scope(&mc_rec.mgid, scope);
/* don't update rate, mtu */
comp_mask = IB_MCR_COMPMASK_MTU | IB_MCR_COMPMASK_MTU_SEL |
IB_MCR_COMPMASK_RATE | IB_MCR_COMPMASK_RATE_SEL;
mgrp = osm_mcmr_rcv_find_or_create_new_mgrp(p_sa, comp_mask, &mc_rec);
if (!mgrp) {
OSM_LOG(p_log, OSM_LOG_ERROR,
"Failed to create MC group (%s) with pkey 0x%04x\n",
inet_ntop(AF_INET6, mgid->raw, gid_str, sizeof gid_str),
cl_ntoh16(pkey));
return IB_ERROR;
}
return (track_mgrp_w_partition(p_log, p, mgrp, p_subn, mgid, pkey));
}
/*
* SA DB Loader
*/
static osm_mgrp_t *load_mcgroup(osm_opensm_t * p_osm, ib_net16_t mlid,
ib_member_rec_t * p_mcm_rec,
unsigned well_known)
{
ib_net64_t comp_mask;
osm_mgrp_t *p_mgrp;
cl_plock_excl_acquire(&p_osm->lock);
p_mgrp = osm_get_mgrp_by_mgid(&p_osm->subn, &p_mcm_rec->mgid);
if (p_mgrp) {
if (p_mgrp->mlid == mlid) {
OSM_LOG(&p_osm->log, OSM_LOG_DEBUG,
"mgrp %04x is already here.", cl_ntoh16(mlid));
goto _out;
}
OSM_LOG(&p_osm->log, OSM_LOG_VERBOSE,
"mlid %04x is already used by another MC group. Will "
"request clients reregistration.\n", cl_ntoh16(mlid));
p_mgrp = NULL;
goto _out;
}
comp_mask = IB_MCR_COMPMASK_MTU | IB_MCR_COMPMASK_MTU_SEL
| IB_MCR_COMPMASK_RATE | IB_MCR_COMPMASK_RATE_SEL;
if (!(p_mgrp = osm_mcmr_rcv_find_or_create_new_mgrp(&p_osm->sa,
comp_mask,
p_mcm_rec)) ||
p_mgrp->mlid != mlid) {
OSM_LOG(&p_osm->log, OSM_LOG_ERROR,
"cannot create MC group with mlid 0x%04x and mgid "
"0x%016" PRIx64 ":0x%016" PRIx64 "\n", cl_ntoh16(mlid),
cl_ntoh64(p_mcm_rec->mgid.unicast.prefix),
cl_ntoh64(p_mcm_rec->mgid.unicast.interface_id));
p_mgrp = NULL;
} else if (well_known)
p_mgrp->well_known = TRUE;
_out:
cl_plock_release(&p_osm->lock);
return p_mgrp;
}
