static int send_set_up_connection(struct pingpong_context *ctx,
struct perftest_parameters *user_param,
struct pingpong_dest *my_dest,
struct mcast_parameters *mcg_params,
struct perftest_comm *comm)
{
int i;
if (set_up_connection(ctx,user_param,my_dest)) {
fprintf(stderr," Unable to set up my IB connection parameters\n");
return FAILURE;
}
if (user_param->use_mcg && (user_param->duplex || user_param->machine == SERVER)) {
mcg_params->user_mgid = user_param->user_mgid;
set_multicast_gid(mcg_params,ctx->qp[0]->qp_num,(int)user_param->machine);
if (set_mcast_group(ctx,user_param,mcg_params)) {
return 1;
}
for (i=0; i < user_param->num_of_qps; i++) {
if (ibv_attach_mcast(ctx->qp[i],&mcg_params->mgid,mcg_params->mlid)) {
fprintf(stderr, "Couldn't attach QP to MultiCast group");
return 1;
}
}
mcg_params->mcast_state |= MCAST_IS_ATTACHED;
my_dest->gid = mcg_params->mgid;
my_dest->lid = mcg_params->mlid;
my_dest->qpn = QPNUM_MCAST;
}
return 0;
}
static int set_mcast_group(struct pingpong_context *ctx,
struct perftest_parameters *user_param,
struct mcast_parameters *mcg_params) {
int i;
struct ibv_port_attr port_attr;
if (ibv_query_gid(ctx->context,user_param->ib_port,user_param->gid_index,&mcg_params->port_gid)) {
return 1;
}
if (ibv_query_pkey(ctx->context,user_param->ib_port,DEF_PKEY_IDX,&mcg_params->pkey)) {
return 1;
}
if (ibv_query_port(ctx->context,user_param->ib_port,&port_attr)) {
return 1;
}
mcg_params->sm_lid = port_attr.sm_lid;
mcg_params->sm_sl = port_attr.sm_sl;
mcg_params->ib_port = user_param->ib_port;
mcg_params->user_mgid = user_param->user_mgid;
set_multicast_gid(mcg_params,ctx->qp[0]->qp_num,(int)user_param->machine);
if (!strcmp(link_layer_str(user_param->link_type),"IB")) {
// Request for Mcast group create registery in SM.
if (join_multicast_group(SUBN_ADM_METHOD_SET,mcg_params)) {
fprintf(stderr," Failed to Join Mcast request\n");
return 1;
}
}
for (i=0; i < user_param->num_of_qps; i++) {
if (ibv_attach_mcast(ctx->qp[i],&mcg_params->mgid,mcg_params->mlid)) {
fprintf(stderr, "Couldn't attach QP to MultiCast group");
return 1;
}
}
mcg_params->mcast_state |= MCAST_IS_ATTACHED;
return 0;
}
