/* * Connection established. * We get here for both outgoing and incoming connection. */ void rds_ib_cm_connect_complete(struct rds_connection *conn, struct rdma_cm_event *event) { const struct rds_ib_connect_private *dp = NULL; struct rds_ib_connection *ic = conn->c_transport_data; struct rds_ib_device *rds_ibdev; struct ib_qp_attr qp_attr; int err; if (event->param.conn.private_data_len >= sizeof(*dp)) { dp = event->param.conn.private_data; /* make sure it isn't empty data */ if (dp->dp_protocol_major) { rds_ib_set_protocol(conn, RDS_PROTOCOL(dp->dp_protocol_major, dp->dp_protocol_minor)); rds_ib_set_flow_control(conn, be32_to_cpu(dp->dp_credit)); } } printk(KERN_NOTICE "RDS/IB: connected to %pI4 version %u.%u%s\n", &conn->c_faddr, RDS_PROTOCOL_MAJOR(conn->c_version), RDS_PROTOCOL_MINOR(conn->c_version), ic->i_flowctl ? ", flow control" : ""); /* * Init rings and fill recv. this needs to wait until protocol negotiation * is complete, since ring layout is different from 3.0 to 3.1. */ rds_ib_send_init_ring(ic); rds_ib_recv_init_ring(ic); /* Post receive buffers - as a side effect, this will update * the posted credit count. */ rds_ib_recv_refill(conn, GFP_KERNEL, GFP_HIGHUSER, 1); /* Tune RNR behavior */ rds_ib_tune_rnr(ic, &qp_attr); qp_attr.qp_state = IB_QPS_RTS; err = ib_modify_qp(ic->i_cm_id->qp, &qp_attr, IB_QP_STATE); if (err) printk(KERN_NOTICE "ib_modify_qp(IB_QP_STATE, RTS): err=%d\n", err); /* update ib_device with this local ipaddr & conn */ rds_ibdev = ib_get_client_data(ic->i_cm_id->device, &rds_ib_client); err = rds_ib_update_ipaddr(rds_ibdev, conn->c_laddr); if (err) printk(KERN_ERR "rds_ib_update_ipaddr failed (%d)\n", err); rds_ib_add_conn(rds_ibdev, conn); /* If the peer gave us the last packet it saw, process this as if * we had received a regular ACK. */ if (dp && dp->dp_ack_seq) rds_send_drop_acked(conn, be64_to_cpu(dp->dp_ack_seq), NULL); rds_connect_complete(conn); }
void rds_ib_cm_connect_complete(struct rds_connection *conn, struct rdma_cm_event *event) { const struct rds_ib_connect_private *dp = NULL; struct rds_ib_connection *ic = conn->c_transport_data; struct ib_qp_attr qp_attr; int err; if (event->param.conn.private_data_len >= sizeof(*dp)) { dp = event->param.conn.private_data; if (dp->dp_protocol_major) { rds_ib_set_protocol(conn, RDS_PROTOCOL(dp->dp_protocol_major, dp->dp_protocol_minor)); rds_ib_set_flow_control(conn, be32_to_cpu(dp->dp_credit)); } } if (conn->c_version < RDS_PROTOCOL(3,1)) { printk(KERN_NOTICE "RDS/IB: Connection to %pI4 version %u.%u failed," " no longer supported\n", &conn->c_faddr, RDS_PROTOCOL_MAJOR(conn->c_version), RDS_PROTOCOL_MINOR(conn->c_version)); rds_conn_destroy(conn); return; } else { printk(KERN_NOTICE "RDS/IB: connected to %pI4 version %u.%u%s\n", &conn->c_faddr, RDS_PROTOCOL_MAJOR(conn->c_version), RDS_PROTOCOL_MINOR(conn->c_version), ic->i_flowctl ? ", flow control" : ""); } rds_ib_send_init_ring(ic); rds_ib_recv_init_ring(ic); rds_ib_recv_refill(conn, 1); rds_ib_tune_rnr(ic, &qp_attr); qp_attr.qp_state = IB_QPS_RTS; err = ib_modify_qp(ic->i_cm_id->qp, &qp_attr, IB_QP_STATE); if (err) printk(KERN_NOTICE "ib_modify_qp(IB_QP_STATE, RTS): err=%d\n", err); err = rds_ib_update_ipaddr(ic->rds_ibdev, conn->c_laddr); if (err) printk(KERN_ERR "rds_ib_update_ipaddr failed (%d)\n", err); if (dp && dp->dp_ack_seq) rds_send_drop_acked(conn, be64_to_cpu(dp->dp_ack_seq), NULL); rds_connect_complete(conn); }
/* * Connection established. * We get here for both outgoing and incoming connection. */ void rds_ib_cm_connect_complete(struct rds_connection *conn, struct rdma_cm_event *event) { const struct rds_ib_connect_private *dp = NULL; struct rds_ib_connection *ic = conn->c_transport_data; struct ib_qp_attr qp_attr; int err; if (event->param.conn.private_data_len >= sizeof(*dp)) { dp = event->param.conn.private_data; /* make sure it isn't empty data */ if (dp->dp_protocol_major) { rds_ib_set_protocol(conn, RDS_PROTOCOL(dp->dp_protocol_major, dp->dp_protocol_minor)); rds_ib_set_flow_control(conn, be32_to_cpu(dp->dp_credit)); } } if (conn->c_version < RDS_PROTOCOL(3, 1)) { printk(KERN_NOTICE "RDS/IB: Connection to %pI4 version %u.%u failed," " no longer supported\n", &conn->c_faddr, RDS_PROTOCOL_MAJOR(conn->c_version), RDS_PROTOCOL_MINOR(conn->c_version)); rds_conn_destroy(conn); return; } else { printk(KERN_NOTICE "RDS/IB: connected to %pI4 version %u.%u%s\n", &conn->c_faddr, RDS_PROTOCOL_MAJOR(conn->c_version), RDS_PROTOCOL_MINOR(conn->c_version), ic->i_flowctl ? ", flow control" : ""); } /* * Init rings and fill recv. this needs to wait until protocol negotiation * is complete, since ring layout is different from 3.0 to 3.1. */ rds_ib_send_init_ring(ic); rds_ib_recv_init_ring(ic); /* Post receive buffers - as a side effect, this will update * the posted credit count. */ rds_ib_recv_refill(conn, 1, GFP_KERNEL); /* Tune RNR behavior */ rds_ib_tune_rnr(ic, &qp_attr); qp_attr.qp_state = IB_QPS_RTS; err = ib_modify_qp(ic->i_cm_id->qp, &qp_attr, IB_QP_STATE); if (err) printk(KERN_NOTICE "ib_modify_qp(IB_QP_STATE, RTS): err=%d\n", err); /* update ib_device with this local ipaddr */ err = rds_ib_update_ipaddr(ic->rds_ibdev, conn->c_laddr); if (err) printk(KERN_ERR "rds_ib_update_ipaddr failed (%d)\n", err); /* If the peer gave us the last packet it saw, process this as if * we had received a regular ACK. */ if (dp) { /* dp structure start is not guaranteed to be 8 bytes aligned. * Since dp_ack_seq is 64-bit extended load operations can be * used so go through get_unaligned to avoid unaligned errors. */ __be64 dp_ack_seq = get_unaligned(&dp->dp_ack_seq); if (dp_ack_seq) rds_send_drop_acked(conn, be64_to_cpu(dp_ack_seq), NULL); } rds_connect_complete(conn); }