1 files changed, 200 insertions, 108 deletions

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 99dde874fbb..b6a33b3c516 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -47,6 +47,7 @@
 
 #include <rdma/rdma_cm.h>
 #include <rdma/rdma_cm_ib.h>
+#include <rdma/rdma_netlink.h>
 #include <rdma/ib_cache.h>
 #include <rdma/ib_cm.h>
 #include <rdma/ib_sa.h>
@@ -89,20 +90,6 @@ struct cma_device {
 	struct list_head	id_list;
 };
 
-enum cma_state {
-	CMA_IDLE,
-	CMA_ADDR_QUERY,
-	CMA_ADDR_RESOLVED,
-	CMA_ROUTE_QUERY,
-	CMA_ROUTE_RESOLVED,
-	CMA_CONNECT,
-	CMA_DISCONNECT,
-	CMA_ADDR_BOUND,
-	CMA_LISTEN,
-	CMA_DEVICE_REMOVAL,
-	CMA_DESTROYING
-};
-
 struct rdma_bind_list {
 	struct idr		*ps;
 	struct hlist_head	owners;
@@ -126,7 +113,7 @@ struct rdma_id_private {
 	struct list_head	mc_list;
 
 	int			internal_id;
-	enum cma_state		state;
+	enum rdma_cm_state	state;
 	spinlock_t		lock;
 	struct mutex		qp_mutex;
 
@@ -146,6 +133,7 @@ struct rdma_id_private {
 	u32			seq_num;
 	u32			qkey;
 	u32			qp_num;
+	pid_t			owner;
 	u8			srq;
 	u8			tos;
 	u8			reuseaddr;
@@ -165,8 +153,8 @@ struct cma_multicast {
 struct cma_work {
 	struct work_struct	work;
 	struct rdma_id_private	*id;
-	enum cma_state		old_state;
-	enum cma_state		new_state;
+	enum rdma_cm_state	old_state;
+	enum rdma_cm_state	new_state;
 	struct rdma_cm_event	event;
 };
 
@@ -217,7 +205,7 @@ struct sdp_hah {
 #define CMA_VERSION 0x00
 #define SDP_MAJ_VERSION 0x2
 
-static int cma_comp(struct rdma_id_private *id_priv, enum cma_state comp)
+static int cma_comp(struct rdma_id_private *id_priv, enum rdma_cm_state comp)
 {
 	unsigned long flags;
 	int ret;
@@ -229,7 +217,7 @@ static int cma_comp(struct rdma_id_private *id_priv, enum cma_state comp)
 }
 
 static int cma_comp_exch(struct rdma_id_private *id_priv,
-			 enum cma_state comp, enum cma_state exch)
+			 enum rdma_cm_state comp, enum rdma_cm_state exch)
 {
 	unsigned long flags;
 	int ret;
@@ -241,11 +229,11 @@ static int cma_comp_exch(struct rdma_id_private *id_priv,
 	return ret;
 }
 
-static enum cma_state cma_exch(struct rdma_id_private *id_priv,
-			       enum cma_state exch)
+static enum rdma_cm_state cma_exch(struct rdma_id_private *id_priv,
+				   enum rdma_cm_state exch)
 {
 	unsigned long flags;
-	enum cma_state old;
+	enum rdma_cm_state old;
 
 	spin_lock_irqsave(&id_priv->lock, flags);
 	old = id_priv->state;
@@ -279,11 +267,6 @@ static inline void sdp_set_ip_ver(struct sdp_hh *hh, u8 ip_ver)
 	hh->ip_version = (ip_ver << 4) | (hh->ip_version & 0xF);
 }
 
-static inline int cma_is_ud_ps(enum rdma_port_space ps)
-{
-	return (ps == RDMA_PS_UDP || ps == RDMA_PS_IPOIB);
-}
-
 static void cma_attach_to_dev(struct rdma_id_private *id_priv,
 			      struct cma_device *cma_dev)
 {
@@ -413,7 +396,7 @@ static void cma_deref_id(struct rdma_id_private *id_priv)
 }
 
 static int cma_disable_callback(struct rdma_id_private *id_priv,
-			      enum cma_state state)
+				enum rdma_cm_state state)
 {
 	mutex_lock(&id_priv->handler_mutex);
 	if (id_priv->state != state) {
@@ -429,7 +412,8 @@ static int cma_has_cm_dev(struct rdma_id_private *id_priv)
 }
 
 struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
-				  void *context, enum rdma_port_space ps)
+				  void *context, enum rdma_port_space ps,
+				  enum ib_qp_type qp_type)
 {
 	struct rdma_id_private *id_priv;
 
@@ -437,10 +421,12 @@ struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
 	if (!id_priv)
 		return ERR_PTR(-ENOMEM);
 
-	id_priv->state = CMA_IDLE;
+	id_priv->owner = task_pid_nr(current);
+	id_priv->state = RDMA_CM_IDLE;
 	id_priv->id.context = context;
 	id_priv->id.event_handler = event_handler;
 	id_priv->id.ps = ps;
+	id_priv->id.qp_type = qp_type;
 	spin_lock_init(&id_priv->lock);
 	mutex_init(&id_priv->qp_mutex);
 	init_completion(&id_priv->comp);
@@ -508,7 +494,7 @@ int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
 	if (IS_ERR(qp))
 		return PTR_ERR(qp);
 
-	if (cma_is_ud_ps(id_priv->id.ps))
+	if (id->qp_type == IB_QPT_UD)
 		ret = cma_init_ud_qp(id_priv, qp);
 	else
 		ret = cma_init_conn_qp(id_priv, qp);
@@ -636,7 +622,7 @@ static int cma_ib_init_qp_attr(struct rdma_id_private *id_priv,
 	qp_attr->port_num = id_priv->id.port_num;
 	*qp_attr_mask = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT;
 
-	if (cma_is_ud_ps(id_priv->id.ps)) {
+	if (id_priv->id.qp_type == IB_QPT_UD) {
 		ret = cma_set_qkey(id_priv);
 		if (ret)
 			return ret;
@@ -659,7 +645,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
 	id_priv = container_of(id, struct rdma_id_private, id);
 	switch (rdma_node_get_transport(id_priv->id.device->node_type)) {
 	case RDMA_TRANSPORT_IB:
-		if (!id_priv->cm_id.ib || cma_is_ud_ps(id_priv->id.ps))
+		if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))
 			ret = cma_ib_init_qp_attr(id_priv, qp_attr, qp_attr_mask);
 		else
 			ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,
@@ -858,16 +844,16 @@ static void cma_cancel_listens(struct rdma_id_private *id_priv)
 }
 
 static void cma_cancel_operation(struct rdma_id_private *id_priv,
-				 enum cma_state state)
+				 enum rdma_cm_state state)
 {
 	switch (state) {
-	case CMA_ADDR_QUERY:
+	case RDMA_CM_ADDR_QUERY:
 		rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);
 		break;
-	case CMA_ROUTE_QUERY:
+	case RDMA_CM_ROUTE_QUERY:
 		cma_cancel_route(id_priv);
 		break;
-	case CMA_LISTEN:
+	case RDMA_CM_LISTEN:
 		if (cma_any_addr((struct sockaddr *) &id_priv->id.route.addr.src_addr)
 				&& !id_priv->cma_dev)
 			cma_cancel_listens(id_priv);
@@ -918,10 +904,10 @@ static void cma_leave_mc_groups(struct rdma_id_private *id_priv)
 void rdma_destroy_id(struct rdma_cm_id *id)
 {
 	struct rdma_id_private *id_priv;
-	enum cma_state state;
+	enum rdma_cm_state state;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	state = cma_exch(id_priv, CMA_DESTROYING);
+	state = cma_exch(id_priv, RDMA_CM_DESTROYING);
 	cma_cancel_operation(id_priv, state);
 
 	/*
@@ -1015,9 +1001,9 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	int ret = 0;
 
 	if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&
-		cma_disable_callback(id_priv, CMA_CONNECT)) ||
+		cma_disable_callback(id_priv, RDMA_CM_CONNECT)) ||
 	    (ib_event->event == IB_CM_TIMEWAIT_EXIT &&
-		cma_disable_callback(id_priv, CMA_DISCONNECT)))
+		cma_disable_callback(id_priv, RDMA_CM_DISCONNECT)))
 		return 0;
 
 	memset(&event, 0, sizeof event);
@@ -1048,7 +1034,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 		event.status = -ETIMEDOUT; /* fall through */
 	case IB_CM_DREQ_RECEIVED:
 	case IB_CM_DREP_RECEIVED:
-		if (!cma_comp_exch(id_priv, CMA_CONNECT, CMA_DISCONNECT))
+		if (!cma_comp_exch(id_priv, RDMA_CM_CONNECT,
+				   RDMA_CM_DISCONNECT))
 			goto out;
 		event.event = RDMA_CM_EVENT_DISCONNECTED;
 		break;
@@ -1075,7 +1062,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	if (ret) {
 		/* Destroy the CM ID by returning a non-zero value. */
 		id_priv->cm_id.ib = NULL;
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		mutex_unlock(&id_priv->handler_mutex);
 		rdma_destroy_id(&id_priv->id);
 		return ret;
@@ -1101,7 +1088,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
 		goto err;
 
 	id = rdma_create_id(listen_id->event_handler, listen_id->context,
-			    listen_id->ps);
+			    listen_id->ps, ib_event->param.req_rcvd.qp_type);
 	if (IS_ERR(id))
 		goto err;
 
@@ -1132,7 +1119,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
 	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	id_priv->state = CMA_CONNECT;
+	id_priv->state = RDMA_CM_CONNECT;
 	return id_priv;
 
 destroy_id:
@@ -1152,7 +1139,7 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
 	int ret;
 
 	id = rdma_create_id(listen_id->event_handler, listen_id->context,
-			    listen_id->ps);
+			    listen_id->ps, IB_QPT_UD);
 	if (IS_ERR(id))
 		return NULL;
 
@@ -1172,7 +1159,7 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
 	}
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	id_priv->state = CMA_CONNECT;
+	id_priv->state = RDMA_CM_CONNECT;
 	return id_priv;
 err:
 	rdma_destroy_id(id);
@@ -1201,13 +1188,13 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	int offset, ret;
 
 	listen_id = cm_id->context;
-	if (cma_disable_callback(listen_id, CMA_LISTEN))
+	if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
 		return -ECONNABORTED;
 
 	memset(&event, 0, sizeof event);
 	offset = cma_user_data_offset(listen_id->id.ps);
 	event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
-	if (cma_is_ud_ps(listen_id->id.ps)) {
+	if (listen_id->id.qp_type == IB_QPT_UD) {
 		conn_id = cma_new_udp_id(&listen_id->id, ib_event);
 		event.param.ud.private_data = ib_event->private_data + offset;
 		event.param.ud.private_data_len =
@@ -1243,8 +1230,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 		 * while we're accessing the cm_id.
 		 */
 		mutex_lock(&lock);
-		if (cma_comp(conn_id, CMA_CONNECT) &&
-		    !cma_is_ud_ps(conn_id->id.ps))
+		if (cma_comp(conn_id, RDMA_CM_CONNECT) && (conn_id->id.qp_type != IB_QPT_UD))
 			ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
 		mutex_unlock(&lock);
 		mutex_unlock(&conn_id->handler_mutex);
@@ -1257,7 +1243,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	conn_id->cm_id.ib = NULL;
 
 release_conn_id:
-	cma_exch(conn_id, CMA_DESTROYING);
+	cma_exch(conn_id, RDMA_CM_DESTROYING);
 	mutex_unlock(&conn_id->handler_mutex);
 	rdma_destroy_id(&conn_id->id);
 
@@ -1328,7 +1314,7 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
 	struct sockaddr_in *sin;
 	int ret = 0;
 
-	if (cma_disable_callback(id_priv, CMA_CONNECT))
+	if (cma_disable_callback(id_priv, RDMA_CM_CONNECT))
 		return 0;
 
 	memset(&event, 0, sizeof event);
@@ -1371,7 +1357,7 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
 	if (ret) {
 		/* Destroy the CM ID by returning a non-zero value. */
 		id_priv->cm_id.iw = NULL;
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		mutex_unlock(&id_priv->handler_mutex);
 		rdma_destroy_id(&id_priv->id);
 		return ret;
@@ -1393,20 +1379,20 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	struct ib_device_attr attr;
 
 	listen_id = cm_id->context;
-	if (cma_disable_callback(listen_id, CMA_LISTEN))
+	if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
 		return -ECONNABORTED;
 
 	/* Create a new RDMA id for the new IW CM ID */
 	new_cm_id = rdma_create_id(listen_id->id.event_handler,
 				   listen_id->id.context,
-				   RDMA_PS_TCP);
+				   RDMA_PS_TCP, IB_QPT_RC);
 	if (IS_ERR(new_cm_id)) {
 		ret = -ENOMEM;
 		goto out;
 	}
 	conn_id = container_of(new_cm_id, struct rdma_id_private, id);
 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
-	conn_id->state = CMA_CONNECT;
+	conn_id->state = RDMA_CM_CONNECT;
 
 	dev = ip_dev_find(&init_net, iw_event->local_addr.sin_addr.s_addr);
 	if (!dev) {
@@ -1461,7 +1447,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	if (ret) {
 		/* User wants to destroy the CM ID */
 		conn_id->cm_id.iw = NULL;
-		cma_exch(conn_id, CMA_DESTROYING);
+		cma_exch(conn_id, RDMA_CM_DESTROYING);
 		mutex_unlock(&conn_id->handler_mutex);
 		cma_deref_id(conn_id);
 		rdma_destroy_id(&conn_id->id);
@@ -1548,13 +1534,14 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
 	struct rdma_cm_id *id;
 	int ret;
 
-	id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps);
+	id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps,
+			    id_priv->id.qp_type);
 	if (IS_ERR(id))
 		return;
 
 	dev_id_priv = container_of(id, struct rdma_id_private, id);
 
-	dev_id_priv->state = CMA_ADDR_BOUND;
+	dev_id_priv->state = RDMA_CM_ADDR_BOUND;
 	memcpy(&id->route.addr.src_addr, &id_priv->id.route.addr.src_addr,
 	       ip_addr_size((struct sockaddr *) &id_priv->id.route.addr.src_addr));
 
@@ -1601,8 +1588,8 @@ static void cma_query_handler(int status, struct ib_sa_path_rec *path_rec,
 		route->num_paths = 1;
 		*route->path_rec = *path_rec;
 	} else {
-		work->old_state = CMA_ROUTE_QUERY;
-		work->new_state = CMA_ADDR_RESOLVED;
+		work->old_state = RDMA_CM_ROUTE_QUERY;
+		work->new_state = RDMA_CM_ADDR_RESOLVED;
 		work->event.event = RDMA_CM_EVENT_ROUTE_ERROR;
 		work->event.status = status;
 	}
@@ -1660,7 +1647,7 @@ static void cma_work_handler(struct work_struct *_work)
 		goto out;
 
 	if (id_priv->id.event_handler(&id_priv->id, &work->event)) {
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		destroy = 1;
 	}
 out:
@@ -1678,12 +1665,12 @@ static void cma_ndev_work_handler(struct work_struct *_work)
 	int destroy = 0;
 
 	mutex_lock(&id_priv->handler_mutex);
-	if (id_priv->state == CMA_DESTROYING ||
-	    id_priv->state == CMA_DEVICE_REMOVAL)
+	if (id_priv->state == RDMA_CM_DESTROYING ||
+	    id_priv->state == RDMA_CM_DEVICE_REMOVAL)
 		goto out;
 
 	if (id_priv->id.event_handler(&id_priv->id, &work->event)) {
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		destroy = 1;
 	}
 
@@ -1707,8 +1694,8 @@ static int cma_resolve_ib_route(struct rdma_id_private *id_priv, int timeout_ms)
 
 	work->id = id_priv;
 	INIT_WORK(&work->work, cma_work_handler);
-	work->old_state = CMA_ROUTE_QUERY;
-	work->new_state = CMA_ROUTE_RESOLVED;
+	work->old_state = RDMA_CM_ROUTE_QUERY;
+	work->new_state = RDMA_CM_ROUTE_RESOLVED;
 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
 
 	route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);
@@ -1737,7 +1724,8 @@ int rdma_set_ib_paths(struct rdma_cm_id *id,
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_RESOLVED))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
+			   RDMA_CM_ROUTE_RESOLVED))
 		return -EINVAL;
 
 	id->route.path_rec = kmemdup(path_rec, sizeof *path_rec * num_paths,
@@ -1750,7 +1738,7 @@ int rdma_set_ib_paths(struct rdma_cm_id *id,
 	id->route.num_paths = num_paths;
 	return 0;
 err:
-	cma_comp_exch(id_priv, CMA_ROUTE_RESOLVED, CMA_ADDR_RESOLVED);
+	cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_ADDR_RESOLVED);
 	return ret;
 }
 EXPORT_SYMBOL(rdma_set_ib_paths);
@@ -1765,8 +1753,8 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
 
 	work->id = id_priv;
 	INIT_WORK(&work->work, cma_work_handler);
-	work->old_state = CMA_ROUTE_QUERY;
-	work->new_state = CMA_ROUTE_RESOLVED;
+	work->old_state = RDMA_CM_ROUTE_QUERY;
+	work->new_state = RDMA_CM_ROUTE_RESOLVED;
 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
 	queue_work(cma_wq, &work->work);
 	return 0;
@@ -1830,8 +1818,8 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 		goto err2;
 	}
 
-	work->old_state = CMA_ROUTE_QUERY;
-	work->new_state = CMA_ROUTE_RESOLVED;
+	work->old_state = RDMA_CM_ROUTE_QUERY;
+	work->new_state = RDMA_CM_ROUTE_RESOLVED;
 	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
 	work->event.status = 0;
 
@@ -1853,7 +1841,7 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_QUERY))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED, RDMA_CM_ROUTE_QUERY))
 		return -EINVAL;
 
 	atomic_inc(&id_priv->refcount);
@@ -1882,7 +1870,7 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
 
 	return 0;
 err:
-	cma_comp_exch(id_priv, CMA_ROUTE_QUERY, CMA_ADDR_RESOLVED);
+	cma_comp_exch(id_priv, RDMA_CM_ROUTE_QUERY, RDMA_CM_ADDR_RESOLVED);
 	cma_deref_id(id_priv);
 	return ret;
 }
@@ -1941,14 +1929,16 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 
 	memset(&event, 0, sizeof event);
 	mutex_lock(&id_priv->handler_mutex);
-	if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY,
+			   RDMA_CM_ADDR_RESOLVED))
 		goto out;
 
 	if (!status && !id_priv->cma_dev)
 		status = cma_acquire_dev(id_priv);
 
 	if (status) {
-		if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND))
+		if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
+				   RDMA_CM_ADDR_BOUND))
 			goto out;
 		event.event = RDMA_CM_EVENT_ADDR_ERROR;
 		event.status = status;
@@ -1959,7 +1949,7 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 	}
 
 	if (id_priv->id.event_handler(&id_priv->id, &event)) {
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		mutex_unlock(&id_priv->handler_mutex);
 		cma_deref_id(id_priv);
 		rdma_destroy_id(&id_priv->id);
@@ -2004,8 +1994,8 @@ static int cma_resolve_loopback(struct rdma_id_private *id_priv)
 
 	work->id = id_priv;
 	INIT_WORK(&work->work, cma_work_handler);
-	work->old_state = CMA_ADDR_QUERY;
-	work->new_state = CMA_ADDR_RESOLVED;
+	work->old_state = RDMA_CM_ADDR_QUERY;
+	work->new_state = RDMA_CM_ADDR_RESOLVED;
 	work->event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
 	queue_work(cma_wq, &work->work);
 	return 0;
@@ -2034,13 +2024,13 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (id_priv->state == CMA_IDLE) {
+	if (id_priv->state == RDMA_CM_IDLE) {
 		ret = cma_bind_addr(id, src_addr, dst_addr);
 		if (ret)
 			return ret;
 	}
 
-	if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_ADDR_QUERY))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY))
 		return -EINVAL;
 
 	atomic_inc(&id_priv->refcount);
@@ -2056,7 +2046,7 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
 
 	return 0;
 err:
-	cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_BOUND);
+	cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY, RDMA_CM_ADDR_BOUND);
 	cma_deref_id(id_priv);
 	return ret;
 }
@@ -2070,7 +2060,7 @@ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse)
 
 	id_priv = container_of(id, struct rdma_id_private, id);
 	spin_lock_irqsave(&id_priv->lock, flags);
-	if (id_priv->state == CMA_IDLE) {
+	if (id_priv->state == RDMA_CM_IDLE) {
 		id_priv->reuseaddr = reuse;
 		ret = 0;
 	} else {
@@ -2177,7 +2167,7 @@ static int cma_check_port(struct rdma_bind_list *bind_list,
 		if (id_priv == cur_id)
 			continue;
 
-		if ((cur_id->state == CMA_LISTEN) ||
+		if ((cur_id->state == RDMA_CM_LISTEN) ||
 		    !reuseaddr || !cur_id->reuseaddr) {
 			cur_addr = (struct sockaddr *) &cur_id->id.route.addr.src_addr;
 			if (cma_any_addr(cur_addr))
@@ -2280,14 +2270,14 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (id_priv->state == CMA_IDLE) {
+	if (id_priv->state == RDMA_CM_IDLE) {
 		((struct sockaddr *) &id->route.addr.src_addr)->sa_family = AF_INET;
 		ret = rdma_bind_addr(id, (struct sockaddr *) &id->route.addr.src_addr);
 		if (ret)
 			return ret;
 	}
 
-	if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_LISTEN))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_LISTEN))
 		return -EINVAL;
 
 	if (id_priv->reuseaddr) {
@@ -2319,7 +2309,7 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
 	return 0;
 err:
 	id_priv->backlog = 0;
-	cma_comp_exch(id_priv, CMA_LISTEN, CMA_ADDR_BOUND);
+	cma_comp_exch(id_priv, RDMA_CM_LISTEN, RDMA_CM_ADDR_BOUND);
 	return ret;
 }
 EXPORT_SYMBOL(rdma_listen);
@@ -2333,7 +2323,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
 		return -EAFNOSUPPORT;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, CMA_IDLE, CMA_ADDR_BOUND))
+	if (!cma_comp_exch(id_priv, RDMA_CM_IDLE, RDMA_CM_ADDR_BOUND))
 		return -EINVAL;
 
 	ret = cma_check_linklocal(&id->route.addr.dev_addr, addr);
@@ -2360,7 +2350,7 @@ err2:
 	if (id_priv->cma_dev)
 		cma_release_dev(id_priv);
 err1:
-	cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_IDLE);
+	cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_IDLE);
 	return ret;
 }
 EXPORT_SYMBOL(rdma_bind_addr);
@@ -2433,7 +2423,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
 	struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
 	int ret = 0;
 
-	if (cma_disable_callback(id_priv, CMA_CONNECT))
+	if (cma_disable_callback(id_priv, RDMA_CM_CONNECT))
 		return 0;
 
 	memset(&event, 0, sizeof event);
@@ -2479,7 +2469,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
 	if (ret) {
 		/* Destroy the CM ID by returning a non-zero value. */
 		id_priv->cm_id.ib = NULL;
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		mutex_unlock(&id_priv->handler_mutex);
 		rdma_destroy_id(&id_priv->id);
 		return ret;
@@ -2645,7 +2635,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, CMA_ROUTE_RESOLVED, CMA_CONNECT))
+	if (!cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_CONNECT))
 		return -EINVAL;
 
 	if (!id->qp) {
@@ -2655,7 +2645,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 
 	switch (rdma_node_get_transport(id->device->node_type)) {
 	case RDMA_TRANSPORT_IB:
-		if (cma_is_ud_ps(id->ps))
+		if (id->qp_type == IB_QPT_UD)
 			ret = cma_resolve_ib_udp(id_priv, conn_param);
 		else
 			ret = cma_connect_ib(id_priv, conn_param);
@@ -2672,7 +2662,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 
 	return 0;
 err:
-	cma_comp_exch(id_priv, CMA_CONNECT, CMA_ROUTE_RESOLVED);
+	cma_comp_exch(id_priv, RDMA_CM_CONNECT, RDMA_CM_ROUTE_RESOLVED);
 	return ret;
 }
 EXPORT_SYMBOL(rdma_connect);
@@ -2758,7 +2748,10 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp(id_priv, CMA_CONNECT))
+
+	id_priv->owner = task_pid_nr(current);
+
+	if (!cma_comp(id_priv, RDMA_CM_CONNECT))
 		return -EINVAL;
 
 	if (!id->qp && conn_param) {
@@ -2768,7 +2761,7 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 
 	switch (rdma_node_get_transport(id->device->node_type)) {
 	case RDMA_TRANSPORT_IB:
-		if (cma_is_ud_ps(id->ps))
+		if (id->qp_type == IB_QPT_UD)
 			ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
 						conn_param->private_data,
 						conn_param->private_data_len);
@@ -2829,7 +2822,7 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data,
 
 	switch (rdma_node_get_transport(id->device->node_type)) {
 	case RDMA_TRANSPORT_IB:
-		if (cma_is_ud_ps(id->ps))
+		if (id->qp_type == IB_QPT_UD)
 			ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT,
 						private_data, private_data_len);
 		else
@@ -2887,8 +2880,8 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
 	int ret;
 
 	id_priv = mc->id_priv;
-	if (cma_disable_callback(id_priv, CMA_ADDR_BOUND) &&
-	    cma_disable_callback(id_priv, CMA_ADDR_RESOLVED))
+	if (cma_disable_callback(id_priv, RDMA_CM_ADDR_BOUND) &&
+	    cma_disable_callback(id_priv, RDMA_CM_ADDR_RESOLVED))
 		return 0;
 
 	mutex_lock(&id_priv->qp_mutex);
@@ -2912,7 +2905,7 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
 
 	ret = id_priv->id.event_handler(&id_priv->id, &event);
 	if (ret) {
-		cma_exch(id_priv, CMA_DESTROYING);
+		cma_exch(id_priv, RDMA_CM_DESTROYING);
 		mutex_unlock(&id_priv->handler_mutex);
 		rdma_destroy_id(&id_priv->id);
 		return 0;
@@ -3095,8 +3088,8 @@ int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
 	int ret;
 
 	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp(id_priv, CMA_ADDR_BOUND) &&
-	    !cma_comp(id_priv, CMA_ADDR_RESOLVED))
+	if (!cma_comp(id_priv, RDMA_CM_ADDR_BOUND) &&
+	    !cma_comp(id_priv, RDMA_CM_ADDR_RESOLVED))
 		return -EINVAL;
 
 	mc = kmalloc(sizeof *mc, GFP_KERNEL);
@@ -3261,19 +3254,19 @@ static void cma_add_one(struct ib_device *device)
 static int cma_remove_id_dev(struct rdma_id_private *id_priv)
 {
 	struct rdma_cm_event event;
-	enum cma_state state;
+	enum rdma_cm_state state;
 	int ret = 0;
 
 	/* Record that we want to remove the device */
-	state = cma_exch(id_priv, CMA_DEVICE_REMOVAL);
-	if (state == CMA_DESTROYING)
+	state = cma_exch(id_priv, RDMA_CM_DEVICE_REMOVAL);
+	if (state == RDMA_CM_DESTROYING)
 		return 0;
 
 	cma_cancel_operation(id_priv, state);
 	mutex_lock(&id_priv->handler_mutex);
 
 	/* Check for destruction from another callback. */
-	if (!cma_comp(id_priv, CMA_DEVICE_REMOVAL))
+	if (!cma_comp(id_priv, RDMA_CM_DEVICE_REMOVAL))
 		goto out;
 
 	memset(&event, 0, sizeof event);
@@ -3328,6 +3321,100 @@ static void cma_remove_one(struct ib_device *device)
 	kfree(cma_dev);
 }
 
+static int cma_get_id_stats(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct nlmsghdr *nlh;
+	struct rdma_cm_id_stats *id_stats;
+	struct rdma_id_private *id_priv;
+	struct rdma_cm_id *id = NULL;
+	struct cma_device *cma_dev;
+	int i_dev = 0, i_id = 0;
+
+	/*
+	 * We export all of the IDs as a sequence of messages.  Each
+	 * ID gets its own netlink message.
+	 */
+	mutex_lock(&lock);
+
+	list_for_each_entry(cma_dev, &dev_list, list) {
+		if (i_dev < cb->args[0]) {
+			i_dev++;
+			continue;
+		}
+
+		i_id = 0;
+		list_for_each_entry(id_priv, &cma_dev->id_list, list) {
+			if (i_id < cb->args[1]) {
+				i_id++;
+				continue;
+			}
+
+			id_stats = ibnl_put_msg(skb, &nlh, cb->nlh->nlmsg_seq,
+						sizeof *id_stats, RDMA_NL_RDMA_CM,
+						RDMA_NL_RDMA_CM_ID_STATS);
+			if (!id_stats)
+				goto out;
+
+			memset(id_stats, 0, sizeof *id_stats);
+			id = &id_priv->id;
+			id_stats->node_type = id->route.addr.dev_addr.dev_type;
+			id_stats->port_num = id->port_num;
+			id_stats->bound_dev_if =
+				id->route.addr.dev_addr.bound_dev_if;
+
+			if (id->route.addr.src_addr.ss_family == AF_INET) {
+				if (ibnl_put_attr(skb, nlh,
+						  sizeof(struct sockaddr_in),
+						  &id->route.addr.src_addr,
+						  RDMA_NL_RDMA_CM_ATTR_SRC_ADDR)) {
+					goto out;
+				}
+				if (ibnl_put_attr(skb, nlh,
+						  sizeof(struct sockaddr_in),
+						  &id->route.addr.dst_addr,
+						  RDMA_NL_RDMA_CM_ATTR_DST_ADDR)) {
+					goto out;
+				}
+			} else if (id->route.addr.src_addr.ss_family == AF_INET6) {
+				if (ibnl_put_attr(skb, nlh,
+						  sizeof(struct sockaddr_in6),
+						  &id->route.addr.src_addr,
+						  RDMA_NL_RDMA_CM_ATTR_SRC_ADDR)) {
+					goto out;
+				}
+				if (ibnl_put_attr(skb, nlh,
+						  sizeof(struct sockaddr_in6),
+						  &id->route.addr.dst_addr,
+						  RDMA_NL_RDMA_CM_ATTR_DST_ADDR)) {
+					goto out;
+				}
+			}
+
+			id_stats->pid		= id_priv->owner;
+			id_stats->port_space	= id->ps;
+			id_stats->cm_state	= id_priv->state;
+			id_stats->qp_num	= id_priv->qp_num;
+			id_stats->qp_type	= id->qp_type;
+
+			i_id++;
+		}
+
+		cb->args[1] = 0;
+		i_dev++;
+	}
+
+out:
+	mutex_unlock(&lock);
+	cb->args[0] = i_dev;
+	cb->args[1] = i_id;
+
+	return skb->len;
+}
+
+static const struct ibnl_client_cbs cma_cb_table[] = {
+	[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats },
+};
+
 static int __init cma_init(void)
 {
 	int ret;
@@ -3343,6 +3430,10 @@ static int __init cma_init(void)
 	ret = ib_register_client(&cma_client);
 	if (ret)
 		goto err;
+
+	if (ibnl_add_client(RDMA_NL_RDMA_CM, RDMA_NL_RDMA_CM_NUM_OPS, cma_cb_table))
+		printk(KERN_WARNING "RDMA CMA: failed to add netlink callback\n");
+
 	return 0;
 
 err:
@@ -3355,6 +3446,7 @@ err:
 
 static void __exit cma_cleanup(void)
 {
+	ibnl_remove_client(RDMA_NL_RDMA_CM);
 	ib_unregister_client(&cma_client);
 	unregister_netdevice_notifier(&cma_nb);
 	rdma_addr_unregister_client(&addr_client);