aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/core/cm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/core/cm.c')
-rw-r--r--drivers/infiniband/core/cm.c64
1 files changed, 42 insertions, 22 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index fc0f2bd..8b72f39 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -36,6 +36,7 @@
#include <linux/completion.h>
#include <linux/dma-mapping.h>
#include <linux/device.h>
+#include <linux/module.h>
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
@@ -889,6 +890,8 @@ retest:
break;
case IB_CM_ESTABLISHED:
spin_unlock_irq(&cm_id_priv->lock);
+ if (cm_id_priv->qp_type == IB_QPT_XRC_TGT)
+ break;
ib_send_cm_dreq(cm_id, NULL, 0);
goto retest;
case IB_CM_DREQ_SENT:
@@ -1008,7 +1011,6 @@ static void cm_format_req(struct cm_req_msg *req_msg,
req_msg->service_id = param->service_id;
req_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
cm_req_set_local_qpn(req_msg, cpu_to_be32(param->qp_num));
- cm_req_set_resp_res(req_msg, param->responder_resources);
cm_req_set_init_depth(req_msg, param->initiator_depth);
cm_req_set_remote_resp_timeout(req_msg,
param->remote_cm_response_timeout);
@@ -1017,12 +1019,16 @@ static void cm_format_req(struct cm_req_msg *req_msg,
cm_req_set_starting_psn(req_msg, cpu_to_be32(param->starting_psn));
cm_req_set_local_resp_timeout(req_msg,
param->local_cm_response_timeout);
- cm_req_set_retry_count(req_msg, param->retry_count);
req_msg->pkey = param->primary_path->pkey;
cm_req_set_path_mtu(req_msg, param->primary_path->mtu);
- cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
cm_req_set_max_cm_retries(req_msg, param->max_cm_retries);
- cm_req_set_srq(req_msg, param->srq);
+
+ if (param->qp_type != IB_QPT_XRC_INI) {
+ cm_req_set_resp_res(req_msg, param->responder_resources);
+ cm_req_set_retry_count(req_msg, param->retry_count);
+ cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
+ cm_req_set_srq(req_msg, param->srq);
+ }
if (pri_path->hop_limit <= 1) {
req_msg->primary_local_lid = pri_path->slid;
@@ -1080,7 +1086,8 @@ static int cm_validate_req_param(struct ib_cm_req_param *param)
if (!param->primary_path)
return -EINVAL;
- if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC)
+ if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC &&
+ param->qp_type != IB_QPT_XRC_INI)
return -EINVAL;
if (param->private_data &&
@@ -1601,18 +1608,24 @@ static void cm_format_rep(struct cm_rep_msg *rep_msg,
cm_format_mad_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid);
rep_msg->local_comm_id = cm_id_priv->id.local_id;
rep_msg->remote_comm_id = cm_id_priv->id.remote_id;
- cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
cm_rep_set_starting_psn(rep_msg, cpu_to_be32(param->starting_psn));
rep_msg->resp_resources = param->responder_resources;
- rep_msg->initiator_depth = param->initiator_depth;
cm_rep_set_target_ack_delay(rep_msg,
cm_id_priv->av.port->cm_dev->ack_delay);
cm_rep_set_failover(rep_msg, param->failover_accepted);
- cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
cm_rep_set_rnr_retry_count(rep_msg, param->rnr_retry_count);
- cm_rep_set_srq(rep_msg, param->srq);
rep_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
+ if (cm_id_priv->qp_type != IB_QPT_XRC_TGT) {
+ rep_msg->initiator_depth = param->initiator_depth;
+ cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
+ cm_rep_set_srq(rep_msg, param->srq);
+ cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
+ } else {
+ cm_rep_set_srq(rep_msg, 1);
+ cm_rep_set_local_eecn(rep_msg, cpu_to_be32(param->qp_num));
+ }
+
if (param->private_data && param->private_data_len)
memcpy(rep_msg->private_data, param->private_data,
param->private_data_len);
@@ -1660,7 +1673,7 @@ int ib_send_cm_rep(struct ib_cm_id *cm_id,
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->rq_psn = cm_rep_get_starting_psn(rep_msg);
- cm_id_priv->local_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->local_qpn = cpu_to_be32(param->qp_num & 0xFFFFFF);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
@@ -1731,7 +1744,7 @@ error: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
}
EXPORT_SYMBOL(ib_send_cm_rtu);
-static void cm_format_rep_event(struct cm_work *work)
+static void cm_format_rep_event(struct cm_work *work, enum ib_qp_type qp_type)
{
struct cm_rep_msg *rep_msg;
struct ib_cm_rep_event_param *param;
@@ -1740,7 +1753,7 @@ static void cm_format_rep_event(struct cm_work *work)
param = &work->cm_event.param.rep_rcvd;
param->remote_ca_guid = rep_msg->local_ca_guid;
param->remote_qkey = be32_to_cpu(rep_msg->local_qkey);
- param->remote_qpn = be32_to_cpu(cm_rep_get_local_qpn(rep_msg));
+ param->remote_qpn = be32_to_cpu(cm_rep_get_qpn(rep_msg, qp_type));
param->starting_psn = be32_to_cpu(cm_rep_get_starting_psn(rep_msg));
param->responder_resources = rep_msg->initiator_depth;
param->initiator_depth = rep_msg->resp_resources;
@@ -1808,7 +1821,7 @@ static int cm_rep_handler(struct cm_work *work)
return -EINVAL;
}
- cm_format_rep_event(work);
+ cm_format_rep_event(work, cm_id_priv->qp_type);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
@@ -1823,7 +1836,7 @@ static int cm_rep_handler(struct cm_work *work)
cm_id_priv->timewait_info->work.remote_id = rep_msg->local_comm_id;
cm_id_priv->timewait_info->remote_ca_guid = rep_msg->local_ca_guid;
- cm_id_priv->timewait_info->remote_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->timewait_info->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
spin_lock(&cm.lock);
/* Check for duplicate REP. */
@@ -1850,7 +1863,7 @@ static int cm_rep_handler(struct cm_work *work)
cm_id_priv->id.state = IB_CM_REP_RCVD;
cm_id_priv->id.remote_id = rep_msg->local_comm_id;
- cm_id_priv->remote_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
cm_id_priv->initiator_depth = rep_msg->resp_resources;
cm_id_priv->responder_resources = rep_msg->initiator_depth;
cm_id_priv->sq_psn = cm_rep_get_starting_psn(rep_msg);
@@ -3492,7 +3505,8 @@ static int cm_init_qp_rtr_attr(struct cm_id_private *cm_id_priv,
qp_attr->path_mtu = cm_id_priv->path_mtu;
qp_attr->dest_qp_num = be32_to_cpu(cm_id_priv->remote_qpn);
qp_attr->rq_psn = be32_to_cpu(cm_id_priv->rq_psn);
- if (cm_id_priv->qp_type == IB_QPT_RC) {
+ if (cm_id_priv->qp_type == IB_QPT_RC ||
+ cm_id_priv->qp_type == IB_QPT_XRC_TGT) {
*qp_attr_mask |= IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER;
qp_attr->max_dest_rd_atomic =
@@ -3537,15 +3551,21 @@ static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
*qp_attr_mask = IB_QP_STATE | IB_QP_SQ_PSN;
qp_attr->sq_psn = be32_to_cpu(cm_id_priv->sq_psn);
- if (cm_id_priv->qp_type == IB_QPT_RC) {
- *qp_attr_mask |= IB_QP_TIMEOUT | IB_QP_RETRY_CNT |
- IB_QP_RNR_RETRY |
+ switch (cm_id_priv->qp_type) {
+ case IB_QPT_RC:
+ case IB_QPT_XRC_INI:
+ *qp_attr_mask |= IB_QP_RETRY_CNT | IB_QP_RNR_RETRY |
IB_QP_MAX_QP_RD_ATOMIC;
- qp_attr->timeout = cm_id_priv->av.timeout;
qp_attr->retry_cnt = cm_id_priv->retry_count;
qp_attr->rnr_retry = cm_id_priv->rnr_retry_count;
- qp_attr->max_rd_atomic =
- cm_id_priv->initiator_depth;
+ qp_attr->max_rd_atomic = cm_id_priv->initiator_depth;
+ /* fall through */
+ case IB_QPT_XRC_TGT:
+ *qp_attr_mask |= IB_QP_TIMEOUT;
+ qp_attr->timeout = cm_id_priv->av.timeout;
+ break;
+ default:
+ break;
}
if (cm_id_priv->alt_av.ah_attr.dlid) {
*qp_attr_mask |= IB_QP_PATH_MIG_STATE;