ibcore: Delete old files and add new ones missed in the initial commit

for this projects branch.

Sponsored by:	Mellanox Technologies

1 files changed, 0 insertions, 4307 deletions

diff --git a/sys/ofed/drivers/infiniband/core/cma.c b/sys/ofed/drivers/infiniband/core/cma.c
deleted file mode 100644
index 8ac661fc4ef8..000000000000
--- a/sys/ofed/drivers/infiniband/core/cma.c
+++ /dev/null
@@ -1,4307 +0,0 @@
-/*
- * Copyright (c) 2005 Voltaire Inc.  All rights reserved.
- * Copyright (c) 2002-2005, Network Appliance, Inc. All rights reserved.
- * Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
- * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- *     Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *      - Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *
- *      - Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and/or other materials
- *        provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#define	LINUXKPI_PARAM_PREFIX ibcore_
-
-#include <linux/completion.h>
-#include <linux/in.h>
-#include <linux/in6.h>
-#include <linux/mutex.h>
-#include <linux/random.h>
-#include <linux/idr.h>
-#include <linux/inetdevice.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <net/route.h>
-
-#include <net/tcp.h>
-#include <net/ipv6.h>
-
-#include <netinet6/scope6_var.h>
-#include <netinet6/ip6_var.h>
-
-#include <rdma/rdma_cm.h>
-#include <rdma/rdma_cm_ib.h>
-#include <rdma/ib.h>
-#include <rdma/ib_addr.h>
-#include <rdma/ib_cache.h>
-#include <rdma/ib_cm.h>
-#include <rdma/ib_sa.h>
-#include <rdma/iw_cm.h>
-
-#include <sys/priv.h>
-
-#include "core_priv.h"
-
-MODULE_AUTHOR("Sean Hefty");
-MODULE_DESCRIPTION("Generic RDMA CM Agent");
-MODULE_LICENSE("Dual BSD/GPL");
-
-#define CMA_CM_RESPONSE_TIMEOUT 20
-#define CMA_QUERY_CLASSPORT_INFO_TIMEOUT 3000
-#define CMA_MAX_CM_RETRIES 15
-#define CMA_CM_MRA_SETTING (IB_CM_MRA_FLAG_DELAY | 24)
-#define CMA_IBOE_PACKET_LIFETIME 18
-
-static const char * const cma_events[] = {
-	[RDMA_CM_EVENT_ADDR_RESOLVED]	 = "address resolved",
-	[RDMA_CM_EVENT_ADDR_ERROR]	 = "address error",
-	[RDMA_CM_EVENT_ROUTE_RESOLVED]	 = "route resolved ",
-	[RDMA_CM_EVENT_ROUTE_ERROR]	 = "route error",
-	[RDMA_CM_EVENT_CONNECT_REQUEST]	 = "connect request",
-	[RDMA_CM_EVENT_CONNECT_RESPONSE] = "connect response",
-	[RDMA_CM_EVENT_CONNECT_ERROR]	 = "connect error",
-	[RDMA_CM_EVENT_UNREACHABLE]	 = "unreachable",
-	[RDMA_CM_EVENT_REJECTED]	 = "rejected",
-	[RDMA_CM_EVENT_ESTABLISHED]	 = "established",
-	[RDMA_CM_EVENT_DISCONNECTED]	 = "disconnected",
-	[RDMA_CM_EVENT_DEVICE_REMOVAL]	 = "device removal",
-	[RDMA_CM_EVENT_MULTICAST_JOIN]	 = "multicast join",
-	[RDMA_CM_EVENT_MULTICAST_ERROR]	 = "multicast error",
-	[RDMA_CM_EVENT_ADDR_CHANGE]	 = "address change",
-	[RDMA_CM_EVENT_TIMEWAIT_EXIT]	 = "timewait exit",
-};
-
-const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event)
-{
-	size_t index = event;
-
-	return (index < ARRAY_SIZE(cma_events) && cma_events[index]) ?
-			cma_events[index] : "unrecognized event";
-}
-EXPORT_SYMBOL(rdma_event_msg);
-
-static void cma_add_one(struct ib_device *device);
-static void cma_remove_one(struct ib_device *device, void *client_data);
-
-static struct ib_client cma_client = {
-	.name   = "cma",
-	.add    = cma_add_one,
-	.remove = cma_remove_one
-};
-
-static struct ib_sa_client sa_client;
-static struct rdma_addr_client addr_client;
-static LIST_HEAD(dev_list);
-static LIST_HEAD(listen_any_list);
-static DEFINE_MUTEX(lock);
-static struct workqueue_struct *cma_wq;
-
-struct cma_pernet {
-	struct idr tcp_ps;
-	struct idr udp_ps;
-	struct idr ipoib_ps;
-	struct idr ib_ps;
-};
-
-VNET_DEFINE(struct cma_pernet, cma_pernet);
-
-static struct cma_pernet *cma_pernet_ptr(struct vnet *vnet)
-{
-	struct cma_pernet *retval;
-
-	CURVNET_SET_QUIET(vnet);
-	retval = &VNET(cma_pernet);
-	CURVNET_RESTORE();
-
-	return (retval);
-}
-
-static struct idr *cma_pernet_idr(struct vnet *net, enum rdma_port_space ps)
-{
-	struct cma_pernet *pernet = cma_pernet_ptr(net);
-
-	switch (ps) {
-	case RDMA_PS_TCP:
-		return &pernet->tcp_ps;
-	case RDMA_PS_UDP:
-		return &pernet->udp_ps;
-	case RDMA_PS_IPOIB:
-		return &pernet->ipoib_ps;
-	case RDMA_PS_IB:
-		return &pernet->ib_ps;
-	default:
-		return NULL;
-	}
-}
-
-struct cma_device {
-	struct list_head	list;
-	struct ib_device	*device;
-	struct completion	comp;
-	atomic_t		refcount;
-	struct list_head	id_list;
-	struct sysctl_ctx_list	sysctl_ctx;
-	enum ib_gid_type	*default_gid_type;
-};
-
-struct rdma_bind_list {
-	enum rdma_port_space	ps;
-	struct hlist_head	owners;
-	unsigned short		port;
-};
-
-struct class_port_info_context {
-	struct ib_class_port_info	*class_port_info;
-	struct ib_device		*device;
-	struct completion		done;
-	struct ib_sa_query		*sa_query;
-	u8				port_num;
-};
-
-static int cma_ps_alloc(struct vnet *vnet, enum rdma_port_space ps,
-			struct rdma_bind_list *bind_list, int snum)
-{
-	struct idr *idr = cma_pernet_idr(vnet, ps);
-
-	return idr_alloc(idr, bind_list, snum, snum + 1, GFP_KERNEL);
-}
-
-static struct rdma_bind_list *cma_ps_find(struct vnet *net,
-					  enum rdma_port_space ps, int snum)
-{
-	struct idr *idr = cma_pernet_idr(net, ps);
-
-	return idr_find(idr, snum);
-}
-
-static void cma_ps_remove(struct vnet *net, enum rdma_port_space ps, int snum)
-{
-	struct idr *idr = cma_pernet_idr(net, ps);
-
-	idr_remove(idr, snum);
-}
-
-enum {
-	CMA_OPTION_AFONLY,
-};
-
-void cma_ref_dev(struct cma_device *cma_dev)
-{
-	atomic_inc(&cma_dev->refcount);
-}
-
-struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter	filter,
-					     void		*cookie)
-{
-	struct cma_device *cma_dev;
-	struct cma_device *found_cma_dev = NULL;
-
-	mutex_lock(&lock);
-
-	list_for_each_entry(cma_dev, &dev_list, list)
-		if (filter(cma_dev->device, cookie)) {
-			found_cma_dev = cma_dev;
-			break;
-		}
-
-	if (found_cma_dev)
-		cma_ref_dev(found_cma_dev);
-	mutex_unlock(&lock);
-	return found_cma_dev;
-}
-
-int cma_get_default_gid_type(struct cma_device *cma_dev,
-			     unsigned int port)
-{
-	if (port < rdma_start_port(cma_dev->device) ||
-	    port > rdma_end_port(cma_dev->device))
-		return -EINVAL;
-
-	return cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)];
-}
-
-int cma_set_default_gid_type(struct cma_device *cma_dev,
-			     unsigned int port,
-			     enum ib_gid_type default_gid_type)
-{
-	unsigned long supported_gids;
-
-	if (port < rdma_start_port(cma_dev->device) ||
-	    port > rdma_end_port(cma_dev->device))
-		return -EINVAL;
-
-	supported_gids = roce_gid_type_mask_support(cma_dev->device, port);
-
-	if (!(supported_gids & 1 << default_gid_type))
-		return -EINVAL;
-
-	cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)] =
-		default_gid_type;
-
-	return 0;
-}
-
-struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev)
-{
-	return cma_dev->device;
-}
-
-/*
- * Device removal can occur at anytime, so we need extra handling to
- * serialize notifying the user of device removal with other callbacks.
- * We do this by disabling removal notification while a callback is in process,
- * and reporting it after the callback completes.
- */
-struct rdma_id_private {
-	struct rdma_cm_id	id;
-
-	struct rdma_bind_list	*bind_list;
-	struct hlist_node	node;
-	struct list_head	list; /* listen_any_list or cma_device.list */
-	struct list_head	listen_list; /* per device listens */
-	struct cma_device	*cma_dev;
-	struct list_head	mc_list;
-
-	int			internal_id;
-	enum rdma_cm_state	state;
-	spinlock_t		lock;
-	struct mutex		qp_mutex;
-
-	struct completion	comp;
-	atomic_t		refcount;
-	struct mutex		handler_mutex;
-
-	int			backlog;
-	int			timeout_ms;
-	struct ib_sa_query	*query;
-	int			query_id;
-	union {
-		struct ib_cm_id	*ib;
-		struct iw_cm_id	*iw;
-	} cm_id;
-
-	u32			seq_num;
-	u32			qkey;
-	u32			qp_num;
-	pid_t			owner;
-	u32			options;
-	u8			srq;
-	u8			tos;
-	u8			reuseaddr;
-	u8			afonly;
-	enum ib_gid_type	gid_type;
-};
-
-struct cma_multicast {
-	struct rdma_id_private *id_priv;
-	union {
-		struct ib_sa_multicast *ib;
-	} multicast;
-	struct list_head	list;
-	void			*context;
-	struct sockaddr_storage	addr;
-	struct kref		mcref;
-	bool			igmp_joined;
-	u8			join_state;
-};
-
-struct cma_work {
-	struct work_struct	work;
-	struct rdma_id_private	*id;
-	enum rdma_cm_state	old_state;
-	enum rdma_cm_state	new_state;
-	struct rdma_cm_event	event;
-};
-
-struct cma_ndev_work {
-	struct work_struct	work;
-	struct rdma_id_private	*id;
-	struct rdma_cm_event	event;
-};
-
-struct iboe_mcast_work {
-	struct work_struct	 work;
-	struct rdma_id_private	*id;
-	struct cma_multicast	*mc;
-};
-
-union cma_ip_addr {
-	struct in6_addr ip6;
-	struct {
-		__be32 pad[3];
-		__be32 addr;
-	} ip4;
-};
-
-struct cma_hdr {
-	u8 cma_version;
-	u8 ip_version;	/* IP version: 7:4 */
-	__be16 port;
-	union cma_ip_addr src_addr;
-	union cma_ip_addr dst_addr;
-};
-
-#define CMA_VERSION 0x00
-
-struct cma_req_info {
-	struct ib_device *device;
-	int port;
-	union ib_gid local_gid;
-	__be64 service_id;
-	u16 pkey;
-	bool has_gid:1;
-};
-
-static int cma_comp(struct rdma_id_private *id_priv, enum rdma_cm_state comp)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&id_priv->lock, flags);
-	ret = (id_priv->state == comp);
-	spin_unlock_irqrestore(&id_priv->lock, flags);
-	return ret;
-}
-
-static int cma_comp_exch(struct rdma_id_private *id_priv,
-			 enum rdma_cm_state comp, enum rdma_cm_state exch)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&id_priv->lock, flags);
-	if ((ret = (id_priv->state == comp)))
-		id_priv->state = exch;
-	spin_unlock_irqrestore(&id_priv->lock, flags);
-	return ret;
-}
-
-static enum rdma_cm_state cma_exch(struct rdma_id_private *id_priv,
-				   enum rdma_cm_state exch)
-{
-	unsigned long flags;
-	enum rdma_cm_state old;
-
-	spin_lock_irqsave(&id_priv->lock, flags);
-	old = id_priv->state;
-	id_priv->state = exch;
-	spin_unlock_irqrestore(&id_priv->lock, flags);
-	return old;
-}
-
-static inline u8 cma_get_ip_ver(const struct cma_hdr *hdr)
-{
-	return hdr->ip_version >> 4;
-}
-
-static inline void cma_set_ip_ver(struct cma_hdr *hdr, u8 ip_ver)
-{
-	hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF);
-}
-
-static void _cma_attach_to_dev(struct rdma_id_private *id_priv,
-			       struct cma_device *cma_dev)
-{
-	cma_ref_dev(cma_dev);
-	id_priv->cma_dev = cma_dev;
-	id_priv->gid_type = 0;
-	id_priv->id.device = cma_dev->device;
-	id_priv->id.route.addr.dev_addr.transport =
-		rdma_node_get_transport(cma_dev->device->node_type);
-	list_add_tail(&id_priv->list, &cma_dev->id_list);
-}
-
-static void cma_attach_to_dev(struct rdma_id_private *id_priv,
-			      struct cma_device *cma_dev)
-{
-	_cma_attach_to_dev(id_priv, cma_dev);
-	id_priv->gid_type =
-		cma_dev->default_gid_type[id_priv->id.port_num -
-					  rdma_start_port(cma_dev->device)];
-}
-
-void cma_deref_dev(struct cma_device *cma_dev)
-{
-	if (atomic_dec_and_test(&cma_dev->refcount))
-		complete(&cma_dev->comp);
-}
-
-static inline void release_mc(struct kref *kref)
-{
-	struct cma_multicast *mc = container_of(kref, struct cma_multicast, mcref);
-
-	kfree(mc->multicast.ib);
-	kfree(mc);
-}
-
-static void cma_release_dev(struct rdma_id_private *id_priv)
-{
-	mutex_lock(&lock);
-	list_del(&id_priv->list);
-	cma_deref_dev(id_priv->cma_dev);
-	id_priv->cma_dev = NULL;
-	mutex_unlock(&lock);
-}
-
-static inline struct sockaddr *cma_src_addr(struct rdma_id_private *id_priv)
-{
-	return (struct sockaddr *) &id_priv->id.route.addr.src_addr;
-}
-
-static inline struct sockaddr *cma_dst_addr(struct rdma_id_private *id_priv)
-{
-	return (struct sockaddr *) &id_priv->id.route.addr.dst_addr;
-}
-
-static inline unsigned short cma_family(struct rdma_id_private *id_priv)
-{
-	return id_priv->id.route.addr.src_addr.ss_family;
-}
-
-static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
-{
-	struct ib_sa_mcmember_rec rec;
-	int ret = 0;
-
-	if (id_priv->qkey) {
-		if (qkey && id_priv->qkey != qkey)
-			return -EINVAL;
-		return 0;
-	}
-
-	if (qkey) {
-		id_priv->qkey = qkey;
-		return 0;
-	}
-
-	switch (id_priv->id.ps) {
-	case RDMA_PS_UDP:
-	case RDMA_PS_IB:
-		id_priv->qkey = RDMA_UDP_QKEY;
-		break;
-	case RDMA_PS_IPOIB:
-		ib_addr_get_mgid(&id_priv->id.route.addr.dev_addr, &rec.mgid);
-		ret = ib_sa_get_mcmember_rec(id_priv->id.device,
-					     id_priv->id.port_num, &rec.mgid,
-					     &rec);
-		if (!ret)
-			id_priv->qkey = be32_to_cpu(rec.qkey);
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr)
-{
-	dev_addr->dev_type = ARPHRD_INFINIBAND;
-	rdma_addr_set_sgid(dev_addr, (union ib_gid *) &sib->sib_addr);
-	ib_addr_set_pkey(dev_addr, ntohs(sib->sib_pkey));
-}
-
-static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_addr)
-{
-	int ret;
-
-	if (addr->sa_family != AF_IB) {
-		ret = rdma_translate_ip(addr, dev_addr, NULL);
-	} else {
-		cma_translate_ib((struct sockaddr_ib *) addr, dev_addr);
-		ret = 0;
-	}
-
-	return ret;
-}
-
-static inline int cma_validate_port(struct ib_device *device, u8 port,
-				    enum ib_gid_type gid_type,
-				      union ib_gid *gid, int dev_type,
-				      struct vnet *net,
-				      int bound_if_index)
-{
-	int ret = -ENODEV;
-	struct net_device *ndev = NULL;
-
-	if ((dev_type == ARPHRD_INFINIBAND) && !rdma_protocol_ib(device, port))
-		return ret;
-
-	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
-		return ret;
-
-	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {
-		ndev = dev_get_by_index(net, bound_if_index);
-		if (ndev && ndev->if_flags & IFF_LOOPBACK) {
-			pr_info("detected loopback device\n");
-			dev_put(ndev);
-
-			if (!device->get_netdev)
-				return -EOPNOTSUPP;
-
-			ndev = device->get_netdev(device, port);
-			if (!ndev)
-				return -ENODEV;
-		}
-	} else {
-		gid_type = IB_GID_TYPE_IB;
-	}
-
-	ret = ib_find_cached_gid_by_port(device, gid, gid_type, port,
-					 ndev, NULL);
-
-	if (ndev)
-		dev_put(ndev);
-
-	return ret;
-}
-
-static int cma_acquire_dev(struct rdma_id_private *id_priv,
-			   struct rdma_id_private *listen_id_priv)
-{
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	struct cma_device *cma_dev;
-	union ib_gid gid, iboe_gid, *gidp;
-	int ret = -ENODEV;
-	u8 port;
-
-	if (dev_addr->dev_type != ARPHRD_INFINIBAND &&
-	    id_priv->id.ps == RDMA_PS_IPOIB)
-		return -EINVAL;
-
-	mutex_lock(&lock);
-	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
-		    &iboe_gid);
-
-	memcpy(&gid, dev_addr->src_dev_addr +
-	       rdma_addr_gid_offset(dev_addr), sizeof gid);
-
-	if (listen_id_priv) {
-		cma_dev = listen_id_priv->cma_dev;
-		port = listen_id_priv->id.port_num;
-		gidp = rdma_protocol_roce(cma_dev->device, port) ?
-		       &iboe_gid : &gid;
-
-		ret = cma_validate_port(cma_dev->device, port,
-					rdma_protocol_ib(cma_dev->device, port) ?
-					IB_GID_TYPE_IB :
-					listen_id_priv->gid_type, gidp,
-					dev_addr->dev_type,
-					dev_addr->net,
-					dev_addr->bound_dev_if);
-		if (!ret) {
-			id_priv->id.port_num = port;
-			goto out;
-		}
-	}
-
-	list_for_each_entry(cma_dev, &dev_list, list) {
-		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port) {
-			if (listen_id_priv &&
-			    listen_id_priv->cma_dev == cma_dev &&
-			    listen_id_priv->id.port_num == port)
-				continue;
-
-			gidp = rdma_protocol_roce(cma_dev->device, port) ?
-			       &iboe_gid : &gid;
-
-			ret = cma_validate_port(cma_dev->device, port,
-						rdma_protocol_ib(cma_dev->device, port) ?
-						IB_GID_TYPE_IB :
-						cma_dev->default_gid_type[port - 1],
-						gidp, dev_addr->dev_type,
-						dev_addr->net,
-						dev_addr->bound_dev_if);
-			if (!ret) {
-				id_priv->id.port_num = port;
-				goto out;
-			}
-		}
-	}
-
-out:
-	if (!ret)
-		cma_attach_to_dev(id_priv, cma_dev);
-
-	mutex_unlock(&lock);
-	return ret;
-}
-
-/*
- * Select the source IB device and address to reach the destination IB address.
- */
-static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
-{
-	struct cma_device *cma_dev, *cur_dev;
-	struct sockaddr_ib *addr;
-	union ib_gid gid, sgid, *dgid;
-	u16 pkey, index;
-	u8 p;
-	int i;
-
-	cma_dev = NULL;
-	addr = (struct sockaddr_ib *) cma_dst_addr(id_priv);
-	dgid = (union ib_gid *) &addr->sib_addr;
-	pkey = ntohs(addr->sib_pkey);
-
-	list_for_each_entry(cur_dev, &dev_list, list) {
-		for (p = 1; p <= cur_dev->device->phys_port_cnt; ++p) {
-			if (!rdma_cap_af_ib(cur_dev->device, p))
-				continue;
-
-			if (ib_find_cached_pkey(cur_dev->device, p, pkey, &index))
-				continue;
-
-			for (i = 0; !ib_get_cached_gid(cur_dev->device, p, i,
-						       &gid, NULL);
-			     i++) {
-				if (!memcmp(&gid, dgid, sizeof(gid))) {
-					cma_dev = cur_dev;
-					sgid = gid;
-					id_priv->id.port_num = p;
-					goto found;
-				}
-
-				if (!cma_dev && (gid.global.subnet_prefix ==
-						 dgid->global.subnet_prefix)) {
-					cma_dev = cur_dev;
-					sgid = gid;
-					id_priv->id.port_num = p;
-				}
-			}
-		}
-	}
-
-	if (!cma_dev)
-		return -ENODEV;
-
-found:
-	cma_attach_to_dev(id_priv, cma_dev);
-	addr = (struct sockaddr_ib *) cma_src_addr(id_priv);
-	memcpy(&addr->sib_addr, &sgid, sizeof sgid);
-	cma_translate_ib(addr, &id_priv->id.route.addr.dev_addr);
-	return 0;
-}
-
-static void cma_deref_id(struct rdma_id_private *id_priv)
-{
-	if (atomic_dec_and_test(&id_priv->refcount))
-		complete(&id_priv->comp);
-}
-
-struct rdma_cm_id *rdma_create_id(struct vnet *net,
-				  rdma_cm_event_handler event_handler,
-				  void *context, enum rdma_port_space ps,
-				  enum ib_qp_type qp_type)
-{
-	struct rdma_id_private *id_priv;
-
-	id_priv = kzalloc(sizeof *id_priv, GFP_KERNEL);
-	if (!id_priv)
-		return ERR_PTR(-ENOMEM);
-
-	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);
-	atomic_set(&id_priv->refcount, 1);
-	mutex_init(&id_priv->handler_mutex);
-	INIT_LIST_HEAD(&id_priv->listen_list);
-	INIT_LIST_HEAD(&id_priv->mc_list);
-	get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);
-	id_priv->id.route.addr.dev_addr.net = TD_TO_VNET(curthread);
-
-	return &id_priv->id;
-}
-EXPORT_SYMBOL(rdma_create_id);
-
-static int cma_init_ud_qp(struct rdma_id_private *id_priv, struct ib_qp *qp)
-{
-	struct ib_qp_attr qp_attr;
-	int qp_attr_mask, ret;
-
-	qp_attr.qp_state = IB_QPS_INIT;
-	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);
-	if (ret)
-		return ret;
-
-	ret = ib_modify_qp(qp, &qp_attr, qp_attr_mask);
-	if (ret)
-		return ret;
-
-	qp_attr.qp_state = IB_QPS_RTR;
-	ret = ib_modify_qp(qp, &qp_attr, IB_QP_STATE);
-	if (ret)
-		return ret;
-
-	qp_attr.qp_state = IB_QPS_RTS;
-	qp_attr.sq_psn = 0;
-	ret = ib_modify_qp(qp, &qp_attr, IB_QP_STATE | IB_QP_SQ_PSN);
-
-	return ret;
-}
-
-static int cma_init_conn_qp(struct rdma_id_private *id_priv, struct ib_qp *qp)
-{
-	struct ib_qp_attr qp_attr;
-	int qp_attr_mask, ret;
-
-	qp_attr.qp_state = IB_QPS_INIT;
-	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);
-	if (ret)
-		return ret;
-
-	return ib_modify_qp(qp, &qp_attr, qp_attr_mask);
-}
-
-int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
-		   struct ib_qp_init_attr *qp_init_attr)
-{
-	struct rdma_id_private *id_priv;
-	struct ib_qp *qp;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (id->device != pd->device)
-		return -EINVAL;
-
-	qp_init_attr->port_num = id->port_num;
-	qp = ib_create_qp(pd, qp_init_attr);
-	if (IS_ERR(qp))
-		return PTR_ERR(qp);
-
-	if (id->qp_type == IB_QPT_UD)
-		ret = cma_init_ud_qp(id_priv, qp);
-	else
-		ret = cma_init_conn_qp(id_priv, qp);
-	if (ret)
-		goto err;
-
-	id->qp = qp;
-	id_priv->qp_num = qp->qp_num;
-	id_priv->srq = (qp->srq != NULL);
-	return 0;
-err:
-	ib_destroy_qp(qp);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_create_qp);
-
-void rdma_destroy_qp(struct rdma_cm_id *id)
-{
-	struct rdma_id_private *id_priv;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	mutex_lock(&id_priv->qp_mutex);
-	ib_destroy_qp(id_priv->id.qp);
-	id_priv->id.qp = NULL;
-	mutex_unlock(&id_priv->qp_mutex);
-}
-EXPORT_SYMBOL(rdma_destroy_qp);
-
-static int cma_modify_qp_rtr(struct rdma_id_private *id_priv,
-			     struct rdma_conn_param *conn_param)
-{
-	struct ib_qp_attr qp_attr;
-	int qp_attr_mask, ret;
-	union ib_gid sgid;
-
-	mutex_lock(&id_priv->qp_mutex);
-	if (!id_priv->id.qp) {
-		ret = 0;
-		goto out;
-	}
-
-	/* Need to update QP attributes from default values. */
-	qp_attr.qp_state = IB_QPS_INIT;
-	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);
-	if (ret)
-		goto out;
-
-	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
-	if (ret)
-		goto out;
-
-	qp_attr.qp_state = IB_QPS_RTR;
-	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);
-	if (ret)
-		goto out;
-
-	ret = ib_query_gid(id_priv->id.device, id_priv->id.port_num,
-			   qp_attr.ah_attr.grh.sgid_index, &sgid, NULL);
-	if (ret)
-		goto out;
-
-	BUG_ON(id_priv->cma_dev->device != id_priv->id.device);
-
-	if (conn_param)
-		qp_attr.max_dest_rd_atomic = conn_param->responder_resources;
-	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
-out:
-	mutex_unlock(&id_priv->qp_mutex);
-	return ret;
-}
-
-static int cma_modify_qp_rts(struct rdma_id_private *id_priv,
-			     struct rdma_conn_param *conn_param)
-{
-	struct ib_qp_attr qp_attr;
-	int qp_attr_mask, ret;
-
-	mutex_lock(&id_priv->qp_mutex);
-	if (!id_priv->id.qp) {
-		ret = 0;
-		goto out;
-	}
-
-	qp_attr.qp_state = IB_QPS_RTS;
-	ret = rdma_init_qp_attr(&id_priv->id, &qp_attr, &qp_attr_mask);
-	if (ret)
-		goto out;
-
-	if (conn_param)
-		qp_attr.max_rd_atomic = conn_param->initiator_depth;
-	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
-out:
-	mutex_unlock(&id_priv->qp_mutex);
-	return ret;
-}
-
-static int cma_modify_qp_err(struct rdma_id_private *id_priv)
-{
-	struct ib_qp_attr qp_attr;
-	int ret;
-
-	mutex_lock(&id_priv->qp_mutex);
-	if (!id_priv->id.qp) {
-		ret = 0;
-		goto out;
-	}
-
-	qp_attr.qp_state = IB_QPS_ERR;
-	ret = ib_modify_qp(id_priv->id.qp, &qp_attr, IB_QP_STATE);
-out:
-	mutex_unlock(&id_priv->qp_mutex);
-	return ret;
-}
-
-static int cma_ib_init_qp_attr(struct rdma_id_private *id_priv,
-			       struct ib_qp_attr *qp_attr, int *qp_attr_mask)
-{
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	int ret;
-	u16 pkey;
-
-	if (rdma_cap_eth_ah(id_priv->id.device, id_priv->id.port_num))
-		pkey = 0xffff;
-	else
-		pkey = ib_addr_get_pkey(dev_addr);
-
-	ret = ib_find_cached_pkey(id_priv->id.device, id_priv->id.port_num,
-				  pkey, &qp_attr->pkey_index);
-	if (ret)
-		return ret;
-
-	qp_attr->port_num = id_priv->id.port_num;
-	*qp_attr_mask = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT;
-
-	if (id_priv->id.qp_type == IB_QPT_UD) {
-		ret = cma_set_qkey(id_priv, 0);
-		if (ret)
-			return ret;
-
-		qp_attr->qkey = id_priv->qkey;
-		*qp_attr_mask |= IB_QP_QKEY;
-	} else {
-		qp_attr->qp_access_flags = 0;
-		*qp_attr_mask |= IB_QP_ACCESS_FLAGS;
-	}
-	return 0;
-}
-
-int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
-		       int *qp_attr_mask)
-{
-	struct rdma_id_private *id_priv;
-	int ret = 0;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (rdma_cap_ib_cm(id->device, id->port_num)) {
-		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,
-						 qp_attr_mask);
-
-		if (qp_attr->qp_state == IB_QPS_RTR)
-			qp_attr->rq_psn = id_priv->seq_num;
-	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {
-		if (!id_priv->cm_id.iw) {
-			qp_attr->qp_access_flags = 0;
-			*qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS;
-		} else
-			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,
-						 qp_attr_mask);
-	} else
-		ret = -ENOSYS;
-
-	return ret;
-}
-EXPORT_SYMBOL(rdma_init_qp_attr);
-
-static inline int cma_zero_addr(struct sockaddr *addr)
-{
-	switch (addr->sa_family) {
-	case AF_INET:
-		return ipv4_is_zeronet(((struct sockaddr_in *)addr)->sin_addr.s_addr);
-	case AF_INET6:
-		return ipv6_addr_any(&((struct sockaddr_in6 *) addr)->sin6_addr);
-	case AF_IB:
-		return ib_addr_any(&((struct sockaddr_ib *) addr)->sib_addr);
-	default:
-		return 0;
-	}
-}
-
-static inline int cma_loopback_addr(struct sockaddr *addr)
-{
-	switch (addr->sa_family) {
-	case AF_INET:
-		return ipv4_is_loopback(((struct sockaddr_in *) addr)->sin_addr.s_addr);
-	case AF_INET6:
-		return ipv6_addr_loopback(&((struct sockaddr_in6 *) addr)->sin6_addr);
-	case AF_IB:
-		return ib_addr_loopback(&((struct sockaddr_ib *) addr)->sib_addr);
-	default:
-		return 0;
-	}
-}
-
-static inline int cma_any_addr(struct sockaddr *addr)
-{
-	return cma_zero_addr(addr) || cma_loopback_addr(addr);
-}
-
-static int cma_addr_cmp(struct sockaddr *src, struct sockaddr *dst)
-{
-	if (src->sa_family != dst->sa_family)
-		return -1;
-
-	switch (src->sa_family) {
-	case AF_INET:
-		return ((struct sockaddr_in *) src)->sin_addr.s_addr !=
-		       ((struct sockaddr_in *) dst)->sin_addr.s_addr;
-	case AF_INET6:
-		return ipv6_addr_cmp(&((struct sockaddr_in6 *) src)->sin6_addr,
-				     &((struct sockaddr_in6 *) dst)->sin6_addr);
-	default:
-		return ib_addr_cmp(&((struct sockaddr_ib *) src)->sib_addr,
-				   &((struct sockaddr_ib *) dst)->sib_addr);
-	}
-}
-
-static __be16 cma_port(struct sockaddr *addr)
-{
-	struct sockaddr_ib *sib;
-
-	switch (addr->sa_family) {
-	case AF_INET:
-		return ((struct sockaddr_in *) addr)->sin_port;
-	case AF_INET6:
-		return ((struct sockaddr_in6 *) addr)->sin6_port;
-	case AF_IB:
-		sib = (struct sockaddr_ib *) addr;
-		return htons((u16) (be64_to_cpu(sib->sib_sid) &
-				    be64_to_cpu(sib->sib_sid_mask)));
-	default:
-		return 0;
-	}
-}
-
-static inline int cma_any_port(struct sockaddr *addr)
-{
-	return !cma_port(addr);
-}
-
-static void cma_save_ib_info(struct sockaddr *src_addr,
-			     struct sockaddr *dst_addr,
-			     struct rdma_cm_id *listen_id,
-			     struct ib_sa_path_rec *path)
-{
-	struct sockaddr_ib *listen_ib, *ib;
-
-	listen_ib = (struct sockaddr_ib *) &listen_id->route.addr.src_addr;
-	if (src_addr) {
-		ib = (struct sockaddr_ib *)src_addr;
-		ib->sib_family = AF_IB;
-		if (path) {
-			ib->sib_pkey = path->pkey;
-			ib->sib_flowinfo = path->flow_label;
-			memcpy(&ib->sib_addr, &path->sgid, 16);
-			ib->sib_sid = path->service_id;
-			ib->sib_scope_id = 0;
-		} else {
-			ib->sib_pkey = listen_ib->sib_pkey;
-			ib->sib_flowinfo = listen_ib->sib_flowinfo;
-			ib->sib_addr = listen_ib->sib_addr;
-			ib->sib_sid = listen_ib->sib_sid;
-			ib->sib_scope_id = listen_ib->sib_scope_id;
-		}
-		ib->sib_sid_mask = cpu_to_be64(0xffffffffffffffffULL);
-	}
-	if (dst_addr) {
-		ib = (struct sockaddr_ib *)dst_addr;
-		ib->sib_family = AF_IB;
-		if (path) {
-			ib->sib_pkey = path->pkey;
-			ib->sib_flowinfo = path->flow_label;
-			memcpy(&ib->sib_addr, &path->dgid, 16);
-		}
-	}
-}
-
-static void cma_save_ip4_info(struct sockaddr_in *src_addr,
-			      struct sockaddr_in *dst_addr,
-			      struct cma_hdr *hdr,
-			      __be16 local_port)
-{
-	if (src_addr) {
-		*src_addr = (struct sockaddr_in) {
-			.sin_family = AF_INET,
-			.sin_addr.s_addr = hdr->dst_addr.ip4.addr,
-			.sin_port = local_port,
-		};
-	}
-
-	if (dst_addr) {
-		*dst_addr = (struct sockaddr_in) {
-			.sin_family = AF_INET,
-			.sin_addr.s_addr = hdr->src_addr.ip4.addr,
-			.sin_port = hdr->port,
-		};
-	}
-}
-
-static void cma_save_ip6_info(struct sockaddr_in6 *src_addr,
-			      struct sockaddr_in6 *dst_addr,
-			      struct cma_hdr *hdr,
-			      __be16 local_port)
-{
-	if (src_addr) {
-		*src_addr = (struct sockaddr_in6) {
-			.sin6_family = AF_INET6,
-			.sin6_addr = hdr->dst_addr.ip6,
-			.sin6_port = local_port,
-		};
-	}
-
-	if (dst_addr) {
-		*dst_addr = (struct sockaddr_in6) {
-			.sin6_family = AF_INET6,
-			.sin6_addr = hdr->src_addr.ip6,
-			.sin6_port = hdr->port,
-		};
-	}
-}
-
-static u16 cma_port_from_service_id(__be64 service_id)
-{
-	return (u16)be64_to_cpu(service_id);
-}
-
-static int cma_save_ip_info(struct sockaddr *src_addr,
-			    struct sockaddr *dst_addr,
-			    struct ib_cm_event *ib_event,
-			    __be64 service_id)
-{
-	struct cma_hdr *hdr;
-	__be16 port;
-
-	hdr = ib_event->private_data;
-	if (hdr->cma_version != CMA_VERSION)
-		return -EINVAL;
-
-	port = htons(cma_port_from_service_id(service_id));
-
-	switch (cma_get_ip_ver(hdr)) {
-	case 4:
-		cma_save_ip4_info((struct sockaddr_in *)src_addr,
-				  (struct sockaddr_in *)dst_addr, hdr, port);
-		break;
-	case 6:
-		cma_save_ip6_info((struct sockaddr_in6 *)src_addr,
-				  (struct sockaddr_in6 *)dst_addr, hdr, port);
-		break;
-	default:
-		return -EAFNOSUPPORT;
-	}
-
-	return 0;
-}
-
-static int cma_save_net_info(struct sockaddr *src_addr,
-			     struct sockaddr *dst_addr,
-			     struct rdma_cm_id *listen_id,
-			     struct ib_cm_event *ib_event,
-			     sa_family_t sa_family, __be64 service_id)
-{
-	if (sa_family == AF_IB) {
-		if (ib_event->event == IB_CM_REQ_RECEIVED)
-			cma_save_ib_info(src_addr, dst_addr, listen_id,
-					 ib_event->param.req_rcvd.primary_path);
-		else if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED)
-			cma_save_ib_info(src_addr, dst_addr, listen_id, NULL);
-		return 0;
-	}
-
-	return cma_save_ip_info(src_addr, dst_addr, ib_event, service_id);
-}
-
-static int cma_save_req_info(const struct ib_cm_event *ib_event,
-			     struct cma_req_info *req)
-{
-	const struct ib_cm_req_event_param *req_param =
-		&ib_event->param.req_rcvd;
-	const struct ib_cm_sidr_req_event_param *sidr_param =
-		&ib_event->param.sidr_req_rcvd;
-
-	switch (ib_event->event) {
-	case IB_CM_REQ_RECEIVED:
-		req->device	= req_param->listen_id->device;
-		req->port	= req_param->port;
-		memcpy(&req->local_gid, &req_param->primary_path->sgid,
-		       sizeof(req->local_gid));
-		req->has_gid	= true;
-		req->service_id	= req_param->primary_path->service_id;
-		req->pkey	= be16_to_cpu(req_param->primary_path->pkey);
-		if (req->pkey != req_param->bth_pkey)
-			pr_warn_ratelimited("RDMA CMA: got different BTH P_Key (0x%x) and primary path P_Key (0x%x)\n"
-					    "RDMA CMA: in the future this may cause the request to be dropped\n",
-					    req_param->bth_pkey, req->pkey);
-		break;
-	case IB_CM_SIDR_REQ_RECEIVED:
-		req->device	= sidr_param->listen_id->device;
-		req->port	= sidr_param->port;
-		req->has_gid	= false;
-		req->service_id	= sidr_param->service_id;
-		req->pkey	= sidr_param->pkey;
-		if (req->pkey != sidr_param->bth_pkey)
-			pr_warn_ratelimited("RDMA CMA: got different BTH P_Key (0x%x) and SIDR request payload P_Key (0x%x)\n"
-					    "RDMA CMA: in the future this may cause the request to be dropped\n",
-					    sidr_param->bth_pkey, req->pkey);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static bool validate_ipv4_net_dev(struct net_device *net_dev,
-				  const struct sockaddr_in *dst_addr,
-				  const struct sockaddr_in *src_addr)
-{
-#ifdef INET
-	struct sockaddr_in dst_tmp = *dst_addr;
-	__be32 daddr = dst_addr->sin_addr.s_addr,
-	       saddr = src_addr->sin_addr.s_addr;
-	struct net_device *src_dev;
-	struct rtentry *rte;
-	bool ret;
-
-	if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
-	    ipv4_is_lbcast(daddr) || ipv4_is_zeronet(saddr) ||
-	    ipv4_is_zeronet(daddr) || ipv4_is_loopback(daddr) ||
-	    ipv4_is_loopback(saddr))
-		return false;
-
-	src_dev = ip_dev_find(net_dev->if_vnet, saddr);
-	if (src_dev != net_dev)
-		return false;
-
-	/*
-	 * Make sure the socket address length field
-	 * is set, else rtalloc1() will fail.
-	 */
-	dst_tmp.sin_len = sizeof(dst_tmp);
-
-	CURVNET_SET(net_dev->if_vnet);
-	rte = rtalloc1((struct sockaddr *)&dst_tmp, 1, 0);
-	CURVNET_RESTORE();
-	if (rte != NULL) {
-		ret = (rte->rt_ifp == net_dev);
-		RTFREE_LOCKED(rte);
-	} else {
-		ret = false;
-	}
-	return ret;
-#else
-	return false;
-#endif
-}
-
-static bool validate_ipv6_net_dev(struct net_device *net_dev,
-				  const struct sockaddr_in6 *dst_addr,
-				  const struct sockaddr_in6 *src_addr)
-{
-#ifdef INET6
-	struct sockaddr_in6 dst_tmp = *dst_addr;
-	struct in6_addr in6_addr = src_addr->sin6_addr;
-	struct net_device *src_dev;
-	struct rtentry *rte;
-	bool ret;
-
-	/* embed scope ID */
-	in6_addr.s6_addr[3] = src_addr->sin6_scope_id;
-
-	src_dev = ip6_dev_find(net_dev->if_vnet, in6_addr);
-	if (src_dev != net_dev)
-		return false;
-
-	/*
-	 * Make sure the socket address length field
-	 * is set, else rtalloc1() will fail.
-	 */
-	dst_tmp.sin6_len = sizeof(dst_tmp);
-
-	CURVNET_SET(net_dev->if_vnet);
-	rte = rtalloc1((struct sockaddr *)&dst_tmp, 1, 0);
-	CURVNET_RESTORE();
-	if (rte != NULL) {
-		ret = (rte->rt_ifp == net_dev);
-		RTFREE_LOCKED(rte);
-	} else {
-		ret = false;
-	}
-	return ret;
-#else
-	return false;
-#endif
-}
-
-static bool validate_net_dev(struct net_device *net_dev,
-			     const struct sockaddr *daddr,
-			     const struct sockaddr *saddr)
-{
-	const struct sockaddr_in *daddr4 = (const struct sockaddr_in *)daddr;
-	const struct sockaddr_in *saddr4 = (const struct sockaddr_in *)saddr;
-	const struct sockaddr_in6 *daddr6 = (const struct sockaddr_in6 *)daddr;
-	const struct sockaddr_in6 *saddr6 = (const struct sockaddr_in6 *)saddr;
-
-	switch (daddr->sa_family) {
-	case AF_INET:
-		return saddr->sa_family == AF_INET &&
-		       validate_ipv4_net_dev(net_dev, daddr4, saddr4);
-
-	case AF_INET6:
-		return saddr->sa_family == AF_INET6 &&
-		       validate_ipv6_net_dev(net_dev, daddr6, saddr6);
-
-	default:
-		return false;
-	}
-}
-
-static struct net_device *cma_get_net_dev(struct ib_cm_event *ib_event,
-					  const struct cma_req_info *req)
-{
-	struct sockaddr_storage listen_addr_storage, src_addr_storage;
-	struct sockaddr *listen_addr = (struct sockaddr *)&listen_addr_storage,
-			*src_addr = (struct sockaddr *)&src_addr_storage;
-	struct net_device *net_dev;
-	const union ib_gid *gid = req->has_gid ? &req->local_gid : NULL;
-	int err;
-
-	err = cma_save_ip_info(listen_addr, src_addr, ib_event,
-			       req->service_id);
-	if (err)
-		return ERR_PTR(err);
-
-	net_dev = ib_get_net_dev_by_params(req->device, req->port, req->pkey,
-					   gid, listen_addr);
-	if (!net_dev)
-		return ERR_PTR(-ENODEV);
-
-	if (!validate_net_dev(net_dev, listen_addr, src_addr)) {
-		dev_put(net_dev);
-		return ERR_PTR(-EHOSTUNREACH);
-	}
-
-	return net_dev;
-}
-
-static enum rdma_port_space rdma_ps_from_service_id(__be64 service_id)
-{
-	return (be64_to_cpu(service_id) >> 16) & 0xffff;
-}
-
-static bool cma_match_private_data(struct rdma_id_private *id_priv,
-				   const struct cma_hdr *hdr)
-{
-	struct sockaddr *addr = cma_src_addr(id_priv);
-	__be32 ip4_addr;
-	struct in6_addr ip6_addr;
-
-	if (cma_any_addr(addr) && !id_priv->afonly)
-		return true;
-
-	switch (addr->sa_family) {
-	case AF_INET:
-		ip4_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr;
-		if (cma_get_ip_ver(hdr) != 4)
-			return false;
-		if (!cma_any_addr(addr) &&
-		    hdr->dst_addr.ip4.addr != ip4_addr)
-			return false;
-		break;
-	case AF_INET6:
-		ip6_addr = ((struct sockaddr_in6 *)addr)->sin6_addr;
-		if (cma_get_ip_ver(hdr) != 6)
-			return false;
-		if (!cma_any_addr(addr) &&
-		    memcmp(&hdr->dst_addr.ip6, &ip6_addr, sizeof(ip6_addr)))
-			return false;
-		break;
-	case AF_IB:
-		return true;
-	default:
-		return false;
-	}
-
-	return true;
-}
-
-static bool cma_protocol_roce_dev_port(struct ib_device *device, int port_num)
-{
-	enum rdma_link_layer ll = rdma_port_get_link_layer(device, port_num);
-	enum rdma_transport_type transport =
-		rdma_node_get_transport(device->node_type);
-
-	return ll == IB_LINK_LAYER_ETHERNET && transport == RDMA_TRANSPORT_IB;
-}
-
-static bool cma_protocol_roce(const struct rdma_cm_id *id)
-{
-	struct ib_device *device = id->device;
-	const int port_num = id->port_num ?: rdma_start_port(device);
-
-	return cma_protocol_roce_dev_port(device, port_num);
-}
-
-static bool cma_match_net_dev(const struct rdma_cm_id *id,
-			      const struct net_device *net_dev,
-			      u8 port_num)
-{
-	const struct rdma_addr *addr = &id->route.addr;
-
-	if (!net_dev)
-		/* This request is an AF_IB request or a RoCE request */
-		return (!id->port_num || id->port_num == port_num) &&
-		       (addr->src_addr.ss_family == AF_IB ||
-			cma_protocol_roce_dev_port(id->device, port_num));
-
-	return !addr->dev_addr.bound_dev_if ||
-	       (net_eq(dev_net(net_dev), addr->dev_addr.net) &&
-		addr->dev_addr.bound_dev_if == net_dev->if_index);
-}
-
-static struct rdma_id_private *cma_find_listener(
-		const struct rdma_bind_list *bind_list,
-		const struct ib_cm_id *cm_id,
-		const struct ib_cm_event *ib_event,
-		const struct cma_req_info *req,
-		const struct net_device *net_dev)
-{
-	struct rdma_id_private *id_priv, *id_priv_dev;
-
-	if (!bind_list)
-		return ERR_PTR(-EINVAL);
-
-	hlist_for_each_entry(id_priv, &bind_list->owners, node) {
-		if (cma_match_private_data(id_priv, ib_event->private_data)) {
-			if (id_priv->id.device == cm_id->device &&
-			    cma_match_net_dev(&id_priv->id, net_dev, req->port))
-				return id_priv;
-			list_for_each_entry(id_priv_dev,
-					    &id_priv->listen_list,
-					    listen_list) {
-				if (id_priv_dev->id.device == cm_id->device &&
-				    cma_match_net_dev(&id_priv_dev->id, net_dev, req->port))
-					return id_priv_dev;
-			}
-		}
-	}
-
-	return ERR_PTR(-EINVAL);
-}
-
-static struct rdma_id_private *cma_id_from_event(struct ib_cm_id *cm_id,
-						 struct ib_cm_event *ib_event,
-						 struct net_device **net_dev)
-{
-	struct cma_req_info req;
-	struct rdma_bind_list *bind_list;
-	struct rdma_id_private *id_priv;
-	int err;
-
-	err = cma_save_req_info(ib_event, &req);
-	if (err)
-		return ERR_PTR(err);
-
-	*net_dev = cma_get_net_dev(ib_event, &req);
-	if (IS_ERR(*net_dev)) {
-		if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) {
-			/* Assuming the protocol is AF_IB */
-			*net_dev = NULL;
-		} else if (cma_protocol_roce_dev_port(req.device, req.port)) {
-			/* TODO find the net dev matching the request parameters
-			 * through the RoCE GID table */
-			*net_dev = NULL;
-		} else {
-			return ERR_CAST(*net_dev);
-		}
-	}
-
-	bind_list = cma_ps_find(*net_dev ? dev_net(*net_dev) : &init_net,
-				rdma_ps_from_service_id(req.service_id),
-				cma_port_from_service_id(req.service_id));
-	id_priv = cma_find_listener(bind_list, cm_id, ib_event, &req, *net_dev);
-	if (IS_ERR(id_priv) && *net_dev) {
-		dev_put(*net_dev);
-		*net_dev = NULL;
-	}
-
-	return id_priv;
-}
-
-static inline int cma_user_data_offset(struct rdma_id_private *id_priv)
-{
-	return cma_family(id_priv) == AF_IB ? 0 : sizeof(struct cma_hdr);
-}
-
-static void cma_cancel_route(struct rdma_id_private *id_priv)
-{
-	if (rdma_cap_ib_sa(id_priv->id.device, id_priv->id.port_num)) {
-		if (id_priv->query)
-			ib_sa_cancel_query(id_priv->query_id, id_priv->query);
-	}
-}
-
-static void cma_cancel_listens(struct rdma_id_private *id_priv)
-{
-	struct rdma_id_private *dev_id_priv;
-
-	/*
-	 * Remove from listen_any_list to prevent added devices from spawning
-	 * additional listen requests.
-	 */
-	mutex_lock(&lock);
-	list_del(&id_priv->list);
-
-	while (!list_empty(&id_priv->listen_list)) {
-		dev_id_priv = list_entry(id_priv->listen_list.next,
-					 struct rdma_id_private, listen_list);
-		/* sync with device removal to avoid duplicate destruction */
-		list_del_init(&dev_id_priv->list);
-		list_del(&dev_id_priv->listen_list);
-		mutex_unlock(&lock);
-
-		rdma_destroy_id(&dev_id_priv->id);
-		mutex_lock(&lock);
-	}
-	mutex_unlock(&lock);
-}
-
-static void cma_cancel_operation(struct rdma_id_private *id_priv,
-				 enum rdma_cm_state state)
-{
-	switch (state) {
-	case RDMA_CM_ADDR_QUERY:
-		rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);
-		break;
-	case RDMA_CM_ROUTE_QUERY:
-		cma_cancel_route(id_priv);
-		break;
-	case RDMA_CM_LISTEN:
-		if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)
-			cma_cancel_listens(id_priv);
-		break;
-	default:
-		break;
-	}
-}
-
-static void cma_release_port(struct rdma_id_private *id_priv)
-{
-	struct rdma_bind_list *bind_list = id_priv->bind_list;
-	struct vnet *net = id_priv->id.route.addr.dev_addr.net;
-
-	if (!bind_list)
-		return;
-
-	mutex_lock(&lock);
-	hlist_del(&id_priv->node);
-	if (hlist_empty(&bind_list->owners)) {
-		cma_ps_remove(net, bind_list->ps, bind_list->port);
-		kfree(bind_list);
-	}
-	mutex_unlock(&lock);
-}
-
-static void cma_leave_mc_groups(struct rdma_id_private *id_priv)
-{
-	struct cma_multicast *mc;
-
-	while (!list_empty(&id_priv->mc_list)) {
-		mc = container_of(id_priv->mc_list.next,
-				  struct cma_multicast, list);
-		list_del(&mc->list);
-		if (rdma_cap_ib_mcast(id_priv->cma_dev->device,
-				      id_priv->id.port_num)) {
-			ib_sa_free_multicast(mc->multicast.ib);
-			kfree(mc);
-		} else {
-			if (mc->igmp_joined) {
-				struct rdma_dev_addr *dev_addr =
-					&id_priv->id.route.addr.dev_addr;
-				struct net_device *ndev = NULL;
-
-				if (dev_addr->bound_dev_if)
-					ndev = dev_get_by_index(dev_addr->net,
-								dev_addr->bound_dev_if);
-				if (ndev) {
-					dev_put(ndev);
-				}
-			}
-			kref_put(&mc->mcref, release_mc);
-		}
-	}
-}
-
-void rdma_destroy_id(struct rdma_cm_id *id)
-{
-	struct rdma_id_private *id_priv;
-	enum rdma_cm_state state;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	state = cma_exch(id_priv, RDMA_CM_DESTROYING);
-	cma_cancel_operation(id_priv, state);
-
-	/*
-	 * Wait for any active callback to finish.  New callbacks will find
-	 * the id_priv state set to destroying and abort.
-	 */
-	mutex_lock(&id_priv->handler_mutex);
-	mutex_unlock(&id_priv->handler_mutex);
-
-	if (id_priv->cma_dev) {
-		if (rdma_cap_ib_cm(id_priv->id.device, 1)) {
-			if (id_priv->cm_id.ib)
-				ib_destroy_cm_id(id_priv->cm_id.ib);
-		} else if (rdma_cap_iw_cm(id_priv->id.device, 1)) {
-			if (id_priv->cm_id.iw)
-				iw_destroy_cm_id(id_priv->cm_id.iw);
-		}
-		cma_leave_mc_groups(id_priv);
-		cma_release_dev(id_priv);
-	}
-
-	cma_release_port(id_priv);
-	cma_deref_id(id_priv);
-	wait_for_completion(&id_priv->comp);
-
-	if (id_priv->internal_id)
-		cma_deref_id(id_priv->id.context);
-
-	kfree(id_priv->id.route.path_rec);
-	kfree(id_priv);
-}
-EXPORT_SYMBOL(rdma_destroy_id);
-
-static int cma_rep_recv(struct rdma_id_private *id_priv)
-{
-	int ret;
-
-	ret = cma_modify_qp_rtr(id_priv, NULL);
-	if (ret)
-		goto reject;
-
-	ret = cma_modify_qp_rts(id_priv, NULL);
-	if (ret)
-		goto reject;
-
-	ret = ib_send_cm_rtu(id_priv->cm_id.ib, NULL, 0);
-	if (ret)
-		goto reject;
-
-	return 0;
-reject:
-	cma_modify_qp_err(id_priv);
-	ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,
-		       NULL, 0, NULL, 0);
-	return ret;
-}
-
-static void cma_set_rep_event_data(struct rdma_cm_event *event,
-				   struct ib_cm_rep_event_param *rep_data,
-				   void *private_data)
-{
-	event->param.conn.private_data = private_data;
-	event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;
-	event->param.conn.responder_resources = rep_data->responder_resources;
-	event->param.conn.initiator_depth = rep_data->initiator_depth;
-	event->param.conn.flow_control = rep_data->flow_control;
-	event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;
-	event->param.conn.srq = rep_data->srq;
-	event->param.conn.qp_num = rep_data->remote_qpn;
-}
-
-static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
-{
-	struct rdma_id_private *id_priv = cm_id->context;
-	struct rdma_cm_event event;
-	int ret = 0;
-
-	mutex_lock(&id_priv->handler_mutex);
-	if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&
-	     id_priv->state != RDMA_CM_CONNECT) ||
-	    (ib_event->event == IB_CM_TIMEWAIT_EXIT &&
-	     id_priv->state != RDMA_CM_DISCONNECT))
-		goto out;
-
-	memset(&event, 0, sizeof event);
-	switch (ib_event->event) {
-	case IB_CM_REQ_ERROR:
-	case IB_CM_REP_ERROR:
-		event.event = RDMA_CM_EVENT_UNREACHABLE;
-		event.status = -ETIMEDOUT;
-		break;
-	case IB_CM_REP_RECEIVED:
-		if (id_priv->id.qp) {
-			event.status = cma_rep_recv(id_priv);
-			event.event = event.status ? RDMA_CM_EVENT_CONNECT_ERROR :
-						     RDMA_CM_EVENT_ESTABLISHED;
-		} else {
-			event.event = RDMA_CM_EVENT_CONNECT_RESPONSE;
-		}
-		cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,
-				       ib_event->private_data);
-		break;
-	case IB_CM_RTU_RECEIVED:
-	case IB_CM_USER_ESTABLISHED:
-		event.event = RDMA_CM_EVENT_ESTABLISHED;
-		break;
-	case IB_CM_DREQ_ERROR:
-		event.status = -ETIMEDOUT; /* fall through */
-	case IB_CM_DREQ_RECEIVED:
-	case IB_CM_DREP_RECEIVED:
-		if (!cma_comp_exch(id_priv, RDMA_CM_CONNECT,
-				   RDMA_CM_DISCONNECT))
-			goto out;
-		event.event = RDMA_CM_EVENT_DISCONNECTED;
-		break;
-	case IB_CM_TIMEWAIT_EXIT:
-		event.event = RDMA_CM_EVENT_TIMEWAIT_EXIT;
-		break;
-	case IB_CM_MRA_RECEIVED:
-		/* ignore event */
-		goto out;
-	case IB_CM_REJ_RECEIVED:
-		cma_modify_qp_err(id_priv);
-		event.status = ib_event->param.rej_rcvd.reason;
-		event.event = RDMA_CM_EVENT_REJECTED;
-		event.param.conn.private_data = ib_event->private_data;
-		event.param.conn.private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
-		break;
-	default:
-		pr_err("RDMA CMA: unexpected IB CM event: %d\n",
-		       ib_event->event);
-		goto out;
-	}
-
-	ret = id_priv->id.event_handler(&id_priv->id, &event);
-	if (ret) {
-		/* Destroy the CM ID by returning a non-zero value. */
-		id_priv->cm_id.ib = NULL;
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		mutex_unlock(&id_priv->handler_mutex);
-		rdma_destroy_id(&id_priv->id);
-		return ret;
-	}
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	return ret;
-}
-
-static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
-					       struct ib_cm_event *ib_event,
-					       struct net_device *net_dev)
-{
-	struct rdma_id_private *id_priv;
-	struct rdma_cm_id *id;
-	struct rdma_route *rt;
-	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;
-	const __be64 service_id =
-		      ib_event->param.req_rcvd.primary_path->service_id;
-	int ret;
-
-	id = rdma_create_id(listen_id->route.addr.dev_addr.net,
-			    listen_id->event_handler, listen_id->context,
-			    listen_id->ps, ib_event->param.req_rcvd.qp_type);
-	if (IS_ERR(id))
-		return NULL;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,
-			      (struct sockaddr *)&id->route.addr.dst_addr,
-			      listen_id, ib_event, ss_family, service_id))
-		goto err;
-
-	rt = &id->route;
-	rt->num_paths = ib_event->param.req_rcvd.alternate_path ? 2 : 1;
-	rt->path_rec = kmalloc(sizeof *rt->path_rec * rt->num_paths,
-			       GFP_KERNEL);
-	if (!rt->path_rec)
-		goto err;
-
-	rt->path_rec[0] = *ib_event->param.req_rcvd.primary_path;
-	if (rt->num_paths == 2)
-		rt->path_rec[1] = *ib_event->param.req_rcvd.alternate_path;
-
-	if (net_dev) {
-		ret = rdma_copy_addr(&rt->addr.dev_addr, net_dev, NULL);
-		if (ret)
-			goto err;
-	} else {
-		if (!cma_protocol_roce(listen_id) &&
-		    cma_any_addr(cma_src_addr(id_priv))) {
-			rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;
-			rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);
-			ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));
-		} else if (!cma_any_addr(cma_src_addr(id_priv))) {
-			ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr);
-			if (ret)
-				goto err;
-		}
-	}
-	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);
-
-	id_priv->state = RDMA_CM_CONNECT;
-	return id_priv;
-
-err:
-	rdma_destroy_id(id);
-	return NULL;
-}
-
-static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
-					      struct ib_cm_event *ib_event,
-					      struct net_device *net_dev)
-{
-	struct rdma_id_private *id_priv;
-	struct rdma_cm_id *id;
-	const sa_family_t ss_family = listen_id->route.addr.src_addr.ss_family;
-	struct vnet *net = listen_id->route.addr.dev_addr.net;
-	int ret;
-
-	id = rdma_create_id(net, listen_id->event_handler, listen_id->context,
-			    listen_id->ps, IB_QPT_UD);
-	if (IS_ERR(id))
-		return NULL;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (cma_save_net_info((struct sockaddr *)&id->route.addr.src_addr,
-			      (struct sockaddr *)&id->route.addr.dst_addr,
-			      listen_id, ib_event, ss_family,
-			      ib_event->param.sidr_req_rcvd.service_id))
-		goto err;
-
-	if (net_dev) {
-		ret = rdma_copy_addr(&id->route.addr.dev_addr, net_dev, NULL);
-		if (ret)
-			goto err;
-	} else {
-		if (!cma_any_addr(cma_src_addr(id_priv))) {
-			ret = cma_translate_addr(cma_src_addr(id_priv),
-						 &id->route.addr.dev_addr);
-			if (ret)
-				goto err;
-		}
-	}
-
-	id_priv->state = RDMA_CM_CONNECT;
-	return id_priv;
-err:
-	rdma_destroy_id(id);
-	return NULL;
-}
-
-static void cma_set_req_event_data(struct rdma_cm_event *event,
-				   struct ib_cm_req_event_param *req_data,
-				   void *private_data, int offset)
-{
-	event->param.conn.private_data = (char *)private_data + offset;
-	event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;
-	event->param.conn.responder_resources = req_data->responder_resources;
-	event->param.conn.initiator_depth = req_data->initiator_depth;
-	event->param.conn.flow_control = req_data->flow_control;
-	event->param.conn.retry_count = req_data->retry_count;
-	event->param.conn.rnr_retry_count = req_data->rnr_retry_count;
-	event->param.conn.srq = req_data->srq;
-	event->param.conn.qp_num = req_data->remote_qpn;
-}
-
-static int cma_check_req_qp_type(struct rdma_cm_id *id, struct ib_cm_event *ib_event)
-{
-	return (((ib_event->event == IB_CM_REQ_RECEIVED) &&
-		 (ib_event->param.req_rcvd.qp_type == id->qp_type)) ||
-		((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&
-		 (id->qp_type == IB_QPT_UD)) ||
-		(!id->qp_type));
-}
-
-static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
-{
-	struct rdma_id_private *listen_id, *conn_id = NULL;
-	struct rdma_cm_event event;
-	struct net_device *net_dev;
-	int offset, ret;
-
-	listen_id = cma_id_from_event(cm_id, ib_event, &net_dev);
-	if (IS_ERR(listen_id))
-		return PTR_ERR(listen_id);
-
-	if (!cma_check_req_qp_type(&listen_id->id, ib_event)) {
-		ret = -EINVAL;
-		goto net_dev_put;
-	}
-
-	mutex_lock(&listen_id->handler_mutex);
-	if (listen_id->state != RDMA_CM_LISTEN) {
-		ret = -ECONNABORTED;
-		goto err1;
-	}
-
-	memset(&event, 0, sizeof event);
-	offset = cma_user_data_offset(listen_id);
-	event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
-	if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {
-		conn_id = cma_new_udp_id(&listen_id->id, ib_event, net_dev);
-		event.param.ud.private_data = (char *)ib_event->private_data + offset;
-		event.param.ud.private_data_len =
-				IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;
-	} else {
-		conn_id = cma_new_conn_id(&listen_id->id, ib_event, net_dev);
-		cma_set_req_event_data(&event, &ib_event->param.req_rcvd,
-				       ib_event->private_data, offset);
-	}
-	if (!conn_id) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
-	ret = cma_acquire_dev(conn_id, listen_id);
-	if (ret)
-		goto err2;
-
-	conn_id->cm_id.ib = cm_id;
-	cm_id->context = conn_id;
-	cm_id->cm_handler = cma_ib_handler;
-
-	/*
-	 * Protect against the user destroying conn_id from another thread
-	 * until we're done accessing it.
-	 */
-	atomic_inc(&conn_id->refcount);
-	ret = conn_id->id.event_handler(&conn_id->id, &event);
-	if (ret)
-		goto err3;
-	/*
-	 * Acquire mutex to prevent user executing rdma_destroy_id()
-	 * while we're accessing the cm_id.
-	 */
-	mutex_lock(&lock);
-	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);
-	mutex_unlock(&listen_id->handler_mutex);
-	cma_deref_id(conn_id);
-	if (net_dev)
-		dev_put(net_dev);
-	return 0;
-
-err3:
-	cma_deref_id(conn_id);
-	/* Destroy the CM ID by returning a non-zero value. */
-	conn_id->cm_id.ib = NULL;
-err2:
-	cma_exch(conn_id, RDMA_CM_DESTROYING);
-	mutex_unlock(&conn_id->handler_mutex);
-err1:
-	mutex_unlock(&listen_id->handler_mutex);
-	if (conn_id)
-		rdma_destroy_id(&conn_id->id);
-
-net_dev_put:
-	if (net_dev)
-		dev_put(net_dev);
-
-	return ret;
-}
-
-__be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr)
-{
-	if (addr->sa_family == AF_IB)
-		return ((struct sockaddr_ib *) addr)->sib_sid;
-
-	return cpu_to_be64(((u64)id->ps << 16) + be16_to_cpu(cma_port(addr)));
-}
-EXPORT_SYMBOL(rdma_get_service_id);
-
-static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
-{
-	struct rdma_id_private *id_priv = iw_id->context;
-	struct rdma_cm_event event;
-	int ret = 0;
-	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;
-	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;
-
-	mutex_lock(&id_priv->handler_mutex);
-	if (id_priv->state != RDMA_CM_CONNECT)
-		goto out;
-
-	memset(&event, 0, sizeof event);
-	switch (iw_event->event) {
-	case IW_CM_EVENT_CLOSE:
-		event.event = RDMA_CM_EVENT_DISCONNECTED;
-		break;
-	case IW_CM_EVENT_CONNECT_REPLY:
-		memcpy(cma_src_addr(id_priv), laddr,
-		       rdma_addr_size(laddr));
-		memcpy(cma_dst_addr(id_priv), raddr,
-		       rdma_addr_size(raddr));
-		switch (iw_event->status) {
-		case 0:
-			event.event = RDMA_CM_EVENT_ESTABLISHED;
-			event.param.conn.initiator_depth = iw_event->ird;
-			event.param.conn.responder_resources = iw_event->ord;
-			break;
-		case -ECONNRESET:
-		case -ECONNREFUSED:
-			event.event = RDMA_CM_EVENT_REJECTED;
-			break;
-		case -ETIMEDOUT:
-			event.event = RDMA_CM_EVENT_UNREACHABLE;
-			break;
-		default:
-			event.event = RDMA_CM_EVENT_CONNECT_ERROR;
-			break;
-		}
-		break;
-	case IW_CM_EVENT_ESTABLISHED:
-		event.event = RDMA_CM_EVENT_ESTABLISHED;
-		event.param.conn.initiator_depth = iw_event->ird;
-		event.param.conn.responder_resources = iw_event->ord;
-		break;
-	default:
-		BUG_ON(1);
-	}
-
-	event.status = iw_event->status;
-	event.param.conn.private_data = iw_event->private_data;
-	event.param.conn.private_data_len = iw_event->private_data_len;
-	ret = id_priv->id.event_handler(&id_priv->id, &event);
-	if (ret) {
-		/* Destroy the CM ID by returning a non-zero value. */
-		id_priv->cm_id.iw = NULL;
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		mutex_unlock(&id_priv->handler_mutex);
-		rdma_destroy_id(&id_priv->id);
-		return ret;
-	}
-
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	return ret;
-}
-
-static int iw_conn_req_handler(struct iw_cm_id *cm_id,
-			       struct iw_cm_event *iw_event)
-{
-	struct rdma_cm_id *new_cm_id;
-	struct rdma_id_private *listen_id, *conn_id;
-	struct rdma_cm_event event;
-	int ret = -ECONNABORTED;
-	struct sockaddr *laddr = (struct sockaddr *)&iw_event->local_addr;
-	struct sockaddr *raddr = (struct sockaddr *)&iw_event->remote_addr;
-
-	listen_id = cm_id->context;
-
-	mutex_lock(&listen_id->handler_mutex);
-	if (listen_id->state != RDMA_CM_LISTEN)
-		goto out;
-
-	/* Create a new RDMA id for the new IW CM ID */
-	new_cm_id = rdma_create_id(listen_id->id.route.addr.dev_addr.net,
-				   listen_id->id.event_handler,
-				   listen_id->id.context,
-				   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 = RDMA_CM_CONNECT;
-
-	ret = rdma_translate_ip(laddr, &conn_id->id.route.addr.dev_addr, NULL);
-	if (ret) {
-		mutex_unlock(&conn_id->handler_mutex);
-		rdma_destroy_id(new_cm_id);
-		goto out;
-	}
-
-	ret = cma_acquire_dev(conn_id, listen_id);
-	if (ret) {
-		mutex_unlock(&conn_id->handler_mutex);
-		rdma_destroy_id(new_cm_id);
-		goto out;
-	}
-
-	conn_id->cm_id.iw = cm_id;
-	cm_id->context = conn_id;
-	cm_id->cm_handler = cma_iw_handler;
-
-	memcpy(cma_src_addr(conn_id), laddr, rdma_addr_size(laddr));
-	memcpy(cma_dst_addr(conn_id), raddr, rdma_addr_size(raddr));
-
-	memset(&event, 0, sizeof event);
-	event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
-	event.param.conn.private_data = iw_event->private_data;
-	event.param.conn.private_data_len = iw_event->private_data_len;
-	event.param.conn.initiator_depth = iw_event->ird;
-	event.param.conn.responder_resources = iw_event->ord;
-
-	/*
-	 * Protect against the user destroying conn_id from another thread
-	 * until we're done accessing it.
-	 */
-	atomic_inc(&conn_id->refcount);
-	ret = conn_id->id.event_handler(&conn_id->id, &event);
-	if (ret) {
-		/* User wants to destroy the CM ID */
-		conn_id->cm_id.iw = NULL;
-		cma_exch(conn_id, RDMA_CM_DESTROYING);
-		mutex_unlock(&conn_id->handler_mutex);
-		cma_deref_id(conn_id);
-		rdma_destroy_id(&conn_id->id);
-		goto out;
-	}
-
-	mutex_unlock(&conn_id->handler_mutex);
-	cma_deref_id(conn_id);
-
-out:
-	mutex_unlock(&listen_id->handler_mutex);
-	return ret;
-}
-
-static int cma_ib_listen(struct rdma_id_private *id_priv)
-{
-	struct sockaddr *addr;
-	struct ib_cm_id	*id;
-	__be64 svc_id;
-
-	addr = cma_src_addr(id_priv);
-	svc_id = rdma_get_service_id(&id_priv->id, addr);
-	id = ib_cm_insert_listen(id_priv->id.device, cma_req_handler, svc_id);
-	if (IS_ERR(id))
-		return PTR_ERR(id);
-	id_priv->cm_id.ib = id;
-
-	return 0;
-}
-
-static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog)
-{
-	int ret;
-	struct iw_cm_id	*id;
-
-	id = iw_create_cm_id(id_priv->id.device,
-			     iw_conn_req_handler,
-			     id_priv);
-	if (IS_ERR(id))
-		return PTR_ERR(id);
-
-	id->tos = id_priv->tos;
-	id_priv->cm_id.iw = id;
-
-	memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),
-	       rdma_addr_size(cma_src_addr(id_priv)));
-
-	ret = iw_cm_listen(id_priv->cm_id.iw, backlog);
-
-	if (ret) {
-		iw_destroy_cm_id(id_priv->cm_id.iw);
-		id_priv->cm_id.iw = NULL;
-	}
-
-	return ret;
-}
-
-static int cma_listen_handler(struct rdma_cm_id *id,
-			      struct rdma_cm_event *event)
-{
-	struct rdma_id_private *id_priv = id->context;
-
-	id->context = id_priv->id.context;
-	id->event_handler = id_priv->id.event_handler;
-	return id_priv->id.event_handler(id, event);
-}
-
-static void cma_listen_on_dev(struct rdma_id_private *id_priv,
-			      struct cma_device *cma_dev)
-{
-	struct rdma_id_private *dev_id_priv;
-	struct rdma_cm_id *id;
-	struct vnet *net = id_priv->id.route.addr.dev_addr.net;
-	int ret;
-
-	if (cma_family(id_priv) == AF_IB && !rdma_cap_ib_cm(cma_dev->device, 1))
-		return;
-
-	id = rdma_create_id(net, 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 = RDMA_CM_ADDR_BOUND;
-	memcpy(cma_src_addr(dev_id_priv), cma_src_addr(id_priv),
-	       rdma_addr_size(cma_src_addr(id_priv)));
-
-	_cma_attach_to_dev(dev_id_priv, cma_dev);
-	list_add_tail(&dev_id_priv->listen_list, &id_priv->listen_list);
-	atomic_inc(&id_priv->refcount);
-	dev_id_priv->internal_id = 1;
-	dev_id_priv->afonly = id_priv->afonly;
-
-	ret = rdma_listen(id, id_priv->backlog);
-	if (ret)
-		pr_warn("RDMA CMA: cma_listen_on_dev, error %d, listening on device %s\n",
-			ret, cma_dev->device->name);
-}
-
-static void cma_listen_on_all(struct rdma_id_private *id_priv)
-{
-	struct cma_device *cma_dev;
-
-	mutex_lock(&lock);
-	list_add_tail(&id_priv->list, &listen_any_list);
-	list_for_each_entry(cma_dev, &dev_list, list)
-		cma_listen_on_dev(id_priv, cma_dev);
-	mutex_unlock(&lock);
-}
-
-void rdma_set_service_type(struct rdma_cm_id *id, int tos)
-{
-	struct rdma_id_private *id_priv;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	id_priv->tos = (u8) tos;
-}
-EXPORT_SYMBOL(rdma_set_service_type);
-
-static void cma_query_handler(int status, struct ib_sa_path_rec *path_rec,
-			      void *context)
-{
-	struct cma_work *work = context;
-	struct rdma_route *route;
-
-	route = &work->id->id.route;
-
-	if (!status) {
-		route->num_paths = 1;
-		*route->path_rec = *path_rec;
-	} else {
-		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;
-	}
-
-	queue_work(cma_wq, &work->work);
-}
-
-static int cma_query_ib_route(struct rdma_id_private *id_priv, int timeout_ms,
-			      struct cma_work *work)
-{
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	struct ib_sa_path_rec path_rec;
-	ib_sa_comp_mask comp_mask;
-	struct sockaddr_in6 *sin6;
-	struct sockaddr_ib *sib;
-
-	memset(&path_rec, 0, sizeof path_rec);
-	rdma_addr_get_sgid(dev_addr, &path_rec.sgid);
-	rdma_addr_get_dgid(dev_addr, &path_rec.dgid);
-	path_rec.pkey = cpu_to_be16(ib_addr_get_pkey(dev_addr));
-	path_rec.numb_path = 1;
-	path_rec.reversible = 1;
-	path_rec.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));
-
-	comp_mask = IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID |
-		    IB_SA_PATH_REC_PKEY | IB_SA_PATH_REC_NUMB_PATH |
-		    IB_SA_PATH_REC_REVERSIBLE | IB_SA_PATH_REC_SERVICE_ID;
-
-	switch (cma_family(id_priv)) {
-	case AF_INET:
-		path_rec.qos_class = cpu_to_be16((u16) id_priv->tos);
-		comp_mask |= IB_SA_PATH_REC_QOS_CLASS;
-		break;
-	case AF_INET6:
-		sin6 = (struct sockaddr_in6 *) cma_src_addr(id_priv);
-		path_rec.traffic_class = (u8) (be32_to_cpu(sin6->sin6_flowinfo) >> 20);
-		comp_mask |= IB_SA_PATH_REC_TRAFFIC_CLASS;
-		break;
-	case AF_IB:
-		sib = (struct sockaddr_ib *) cma_src_addr(id_priv);
-		path_rec.traffic_class = (u8) (be32_to_cpu(sib->sib_flowinfo) >> 20);
-		comp_mask |= IB_SA_PATH_REC_TRAFFIC_CLASS;
-		break;
-	}
-
-	id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device,
-					       id_priv->id.port_num, &path_rec,
-					       comp_mask, timeout_ms,
-					       GFP_KERNEL, cma_query_handler,
-					       work, &id_priv->query);
-
-	return (id_priv->query_id < 0) ? id_priv->query_id : 0;
-}
-
-static void cma_work_handler(struct work_struct *_work)
-{
-	struct cma_work *work = container_of(_work, struct cma_work, work);
-	struct rdma_id_private *id_priv = work->id;
-	int destroy = 0;
-
-	mutex_lock(&id_priv->handler_mutex);
-	if (!cma_comp_exch(id_priv, work->old_state, work->new_state))
-		goto out;
-
-	if (id_priv->id.event_handler(&id_priv->id, &work->event)) {
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		destroy = 1;
-	}
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	cma_deref_id(id_priv);
-	if (destroy)
-		rdma_destroy_id(&id_priv->id);
-	kfree(work);
-}
-
-static int cma_resolve_ib_route(struct rdma_id_private *id_priv, int timeout_ms)
-{
-	struct rdma_route *route = &id_priv->id.route;
-	struct cma_work *work;
-	int ret;
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	work->id = id_priv;
-	INIT_WORK(&work->work, cma_work_handler);
-	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);
-	if (!route->path_rec) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	ret = cma_query_ib_route(id_priv, timeout_ms, work);
-	if (ret)
-		goto err2;
-
-	return 0;
-err2:
-	kfree(route->path_rec);
-	route->path_rec = NULL;
-err1:
-	kfree(work);
-	return ret;
-}
-
-int rdma_set_ib_paths(struct rdma_cm_id *id,
-		      struct ib_sa_path_rec *path_rec, int num_paths)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	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,
-				     GFP_KERNEL);
-	if (!id->route.path_rec) {
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	id->route.num_paths = num_paths;
-	return 0;
-err:
-	cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_ADDR_RESOLVED);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_set_ib_paths);
-
-static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
-{
-	struct cma_work *work;
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	work->id = id_priv;
-	INIT_WORK(&work->work, cma_work_handler);
-	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;
-}
-
-static int iboe_tos_to_sl(struct net_device *ndev, int tos)
-{
-	/* TODO: Implement this function */
-	return 0;
-}
-
-static enum ib_gid_type cma_route_gid_type(enum rdma_network_type network_type,
-					   unsigned long supported_gids,
-					   enum ib_gid_type default_gid)
-{
-	if ((network_type == RDMA_NETWORK_IPV4 ||
-	     network_type == RDMA_NETWORK_IPV6) &&
-	    test_bit(IB_GID_TYPE_ROCE_UDP_ENCAP, &supported_gids))
-		return IB_GID_TYPE_ROCE_UDP_ENCAP;
-
-	return default_gid;
-}
-
-static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
-{
-	struct rdma_route *route = &id_priv->id.route;
-	struct rdma_addr *addr = &route->addr;
-	struct cma_work *work;
-	int ret;
-	struct net_device *ndev = NULL;
-
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	work->id = id_priv;
-	INIT_WORK(&work->work, cma_work_handler);
-
-	route->path_rec = kzalloc(sizeof *route->path_rec, GFP_KERNEL);
-	if (!route->path_rec) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	route->num_paths = 1;
-
-	if (addr->dev_addr.bound_dev_if) {
-		unsigned long supported_gids;
-
-		ndev = dev_get_by_index(addr->dev_addr.net,
-					addr->dev_addr.bound_dev_if);
-		if (!ndev) {
-			ret = -ENODEV;
-			goto err2;
-		}
-
-		if (ndev->if_flags & IFF_LOOPBACK) {
-			dev_put(ndev);
-			if (!id_priv->id.device->get_netdev) {
-				ret = -EOPNOTSUPP;
-				goto err2;
-			}
-
-			ndev = id_priv->id.device->get_netdev(id_priv->id.device,
-							      id_priv->id.port_num);
-			if (!ndev) {
-				ret = -ENODEV;
-				goto err2;
-			}
-		}
-
-		route->path_rec->net = ndev->if_vnet;
-		route->path_rec->ifindex = ndev->if_index;
-		supported_gids = roce_gid_type_mask_support(id_priv->id.device,
-							    id_priv->id.port_num);
-		route->path_rec->gid_type =
-			cma_route_gid_type(addr->dev_addr.network,
-					   supported_gids,
-					   id_priv->gid_type);
-	}
-	if (!ndev) {
-		ret = -ENODEV;
-		goto err2;
-	}
-
-	memcpy(route->path_rec->dmac, addr->dev_addr.dst_dev_addr, ETH_ALEN);
-
-	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
-		    &route->path_rec->sgid);
-	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,
-		    &route->path_rec->dgid);
-
-	/* Use the hint from IP Stack to select GID Type */
-	if (route->path_rec->gid_type < ib_network_to_gid_type(addr->dev_addr.network))
-		route->path_rec->gid_type = ib_network_to_gid_type(addr->dev_addr.network);
-	if (((struct sockaddr *)&id_priv->id.route.addr.dst_addr)->sa_family != AF_IB)
-		/* TODO: get the hoplimit from the inet/inet6 device */
-		route->path_rec->hop_limit = addr->dev_addr.hoplimit;
-	else
-		route->path_rec->hop_limit = 1;
-	route->path_rec->reversible = 1;
-	route->path_rec->pkey = cpu_to_be16(0xffff);
-	route->path_rec->mtu_selector = IB_SA_EQ;
-	route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
-	route->path_rec->mtu = iboe_get_mtu(ndev->if_mtu);
-	route->path_rec->rate_selector = IB_SA_EQ;
-	route->path_rec->rate = iboe_get_rate(ndev);
-	dev_put(ndev);
-	route->path_rec->packet_life_time_selector = IB_SA_EQ;
-	route->path_rec->packet_life_time = CMA_IBOE_PACKET_LIFETIME;
-	if (!route->path_rec->mtu) {
-		ret = -EINVAL;
-		goto err2;
-	}
-
-	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;
-
-	queue_work(cma_wq, &work->work);
-
-	return 0;
-
-err2:
-	kfree(route->path_rec);
-	route->path_rec = NULL;
-err1:
-	kfree(work);
-	return ret;
-}
-
-int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED, RDMA_CM_ROUTE_QUERY))
-		return -EINVAL;
-
-	atomic_inc(&id_priv->refcount);
-	if (rdma_cap_ib_sa(id->device, id->port_num))
-		ret = cma_resolve_ib_route(id_priv, timeout_ms);
-	else if (rdma_protocol_roce(id->device, id->port_num))
-		ret = cma_resolve_iboe_route(id_priv);
-	else if (rdma_protocol_iwarp(id->device, id->port_num))
-		ret = cma_resolve_iw_route(id_priv, timeout_ms);
-	else
-		ret = -ENOSYS;
-
-	if (ret)
-		goto err;
-
-	return 0;
-err:
-	cma_comp_exch(id_priv, RDMA_CM_ROUTE_QUERY, RDMA_CM_ADDR_RESOLVED);
-	cma_deref_id(id_priv);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_resolve_route);
-
-static void cma_set_loopback(struct sockaddr *addr)
-{
-	switch (addr->sa_family) {
-	case AF_INET:
-		((struct sockaddr_in *) addr)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-		break;
-	case AF_INET6:
-		ipv6_addr_set(&((struct sockaddr_in6 *) addr)->sin6_addr,
-			      0, 0, 0, htonl(1));
-		break;
-	default:
-		ib_addr_set(&((struct sockaddr_ib *) addr)->sib_addr,
-			    0, 0, 0, htonl(1));
-		break;
-	}
-}
-
-static int cma_bind_loopback(struct rdma_id_private *id_priv)
-{
-	struct cma_device *cma_dev, *cur_dev;
-	struct ib_port_attr port_attr;
-	union ib_gid gid;
-	u16 pkey;
-	int ret;
-	u8 p;
-
-	cma_dev = NULL;
-	mutex_lock(&lock);
-	list_for_each_entry(cur_dev, &dev_list, list) {
-		if (cma_family(id_priv) == AF_IB &&
-		    !rdma_cap_ib_cm(cur_dev->device, 1))
-			continue;
-
-		if (!cma_dev)
-			cma_dev = cur_dev;
-
-		for (p = 1; p <= cur_dev->device->phys_port_cnt; ++p) {
-			if (!ib_query_port(cur_dev->device, p, &port_attr) &&
-			    port_attr.state == IB_PORT_ACTIVE) {
-				cma_dev = cur_dev;
-				goto port_found;
-			}
-		}
-	}
-
-	if (!cma_dev) {
-		ret = -ENODEV;
-		goto out;
-	}
-
-	p = 1;
-
-port_found:
-	ret = ib_get_cached_gid(cma_dev->device, p, 0, &gid, NULL);
-	if (ret)
-		goto out;
-
-	ret = ib_get_cached_pkey(cma_dev->device, p, 0, &pkey);
-	if (ret)
-		goto out;
-
-	id_priv->id.route.addr.dev_addr.dev_type =
-		(rdma_protocol_ib(cma_dev->device, p)) ?
-		ARPHRD_INFINIBAND : ARPHRD_ETHER;
-
-	rdma_addr_set_sgid(&id_priv->id.route.addr.dev_addr, &gid);
-	ib_addr_set_pkey(&id_priv->id.route.addr.dev_addr, pkey);
-	id_priv->id.port_num = p;
-	cma_attach_to_dev(id_priv, cma_dev);
-	cma_set_loopback(cma_src_addr(id_priv));
-out:
-	mutex_unlock(&lock);
-	return ret;
-}
-
-static void addr_handler(int status, struct sockaddr *src_addr,
-			 struct rdma_dev_addr *dev_addr, void *context)
-{
-	struct rdma_id_private *id_priv = context;
-	struct rdma_cm_event event;
-
-	memset(&event, 0, sizeof event);
-	mutex_lock(&id_priv->handler_mutex);
-	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY,
-			   RDMA_CM_ADDR_RESOLVED))
-		goto out;
-
-	memcpy(cma_src_addr(id_priv), src_addr, rdma_addr_size(src_addr));
-	if (!status && !id_priv->cma_dev)
-		status = cma_acquire_dev(id_priv, NULL);
-
-	if (status) {
-		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;
-	} else
-		event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
-
-	if (id_priv->id.event_handler(&id_priv->id, &event)) {
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		mutex_unlock(&id_priv->handler_mutex);
-		cma_deref_id(id_priv);
-		rdma_destroy_id(&id_priv->id);
-		return;
-	}
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	cma_deref_id(id_priv);
-}
-
-static int cma_resolve_loopback(struct rdma_id_private *id_priv)
-{
-	struct cma_work *work;
-	union ib_gid gid;
-	int ret;
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	if (!id_priv->cma_dev) {
-		ret = cma_bind_loopback(id_priv);
-		if (ret)
-			goto err;
-	}
-
-	rdma_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid);
-	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, &gid);
-
-	work->id = id_priv;
-	INIT_WORK(&work->work, cma_work_handler);
-	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;
-err:
-	kfree(work);
-	return ret;
-}
-
-static int cma_resolve_ib_addr(struct rdma_id_private *id_priv)
-{
-	struct cma_work *work;
-	int ret;
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	if (!id_priv->cma_dev) {
-		ret = cma_resolve_ib_dev(id_priv);
-		if (ret)
-			goto err;
-	}
-
-	rdma_addr_set_dgid(&id_priv->id.route.addr.dev_addr, (union ib_gid *)
-		&(((struct sockaddr_ib *) &id_priv->id.route.addr.dst_addr)->sib_addr));
-
-	work->id = id_priv;
-	INIT_WORK(&work->work, cma_work_handler);
-	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;
-err:
-	kfree(work);
-	return ret;
-}
-
-static int cma_bind_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
-			 struct sockaddr *dst_addr)
-{
-	if (!src_addr || !src_addr->sa_family) {
-		src_addr = (struct sockaddr *) &id->route.addr.src_addr;
-		src_addr->sa_family = dst_addr->sa_family;
-		if (dst_addr->sa_family == AF_INET6) {
-			struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *) src_addr;
-			struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *) dst_addr;
-			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;
-			if (IN6_IS_SCOPE_LINKLOCAL(&dst_addr6->sin6_addr))
-				id->route.addr.dev_addr.bound_dev_if = dst_addr6->sin6_scope_id;
-		} else if (dst_addr->sa_family == AF_IB) {
-			((struct sockaddr_ib *) src_addr)->sib_pkey =
-				((struct sockaddr_ib *) dst_addr)->sib_pkey;
-		}
-	}
-	return rdma_bind_addr(id, src_addr);
-}
-
-int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
-		      struct sockaddr *dst_addr, int timeout_ms)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (id_priv->state == RDMA_CM_IDLE) {
-		ret = cma_bind_addr(id, src_addr, dst_addr);
-		if (ret)
-			return ret;
-	}
-
-	if (cma_family(id_priv) != dst_addr->sa_family)
-		return -EINVAL;
-
-	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY))
-		return -EINVAL;
-
-	atomic_inc(&id_priv->refcount);
-	memcpy(cma_dst_addr(id_priv), dst_addr, rdma_addr_size(dst_addr));
-	if (cma_any_addr(dst_addr)) {
-		ret = cma_resolve_loopback(id_priv);
-	} else {
-		if (dst_addr->sa_family == AF_IB) {
-			ret = cma_resolve_ib_addr(id_priv);
-		} else {
-			ret = rdma_resolve_ip(&addr_client, cma_src_addr(id_priv),
-					      dst_addr, &id->route.addr.dev_addr,
-					      timeout_ms, addr_handler, id_priv);
-		}
-	}
-	if (ret)
-		goto err;
-
-	return 0;
-err:
-	cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY, RDMA_CM_ADDR_BOUND);
-	cma_deref_id(id_priv);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_resolve_addr);
-
-int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse)
-{
-	struct rdma_id_private *id_priv;
-	unsigned long flags;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	spin_lock_irqsave(&id_priv->lock, flags);
-	if (reuse || id_priv->state == RDMA_CM_IDLE) {
-		id_priv->reuseaddr = reuse;
-		ret = 0;
-	} else {
-		ret = -EINVAL;
-	}
-	spin_unlock_irqrestore(&id_priv->lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_set_reuseaddr);
-
-int rdma_set_afonly(struct rdma_cm_id *id, int afonly)
-{
-	struct rdma_id_private *id_priv;
-	unsigned long flags;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	spin_lock_irqsave(&id_priv->lock, flags);
-	if (id_priv->state == RDMA_CM_IDLE || id_priv->state == RDMA_CM_ADDR_BOUND) {
-		id_priv->options |= (1 << CMA_OPTION_AFONLY);
-		id_priv->afonly = afonly;
-		ret = 0;
-	} else {
-		ret = -EINVAL;
-	}
-	spin_unlock_irqrestore(&id_priv->lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_set_afonly);
-
-static void cma_bind_port(struct rdma_bind_list *bind_list,
-			  struct rdma_id_private *id_priv)
-{
-	struct sockaddr *addr;
-	struct sockaddr_ib *sib;
-	u64 sid, mask;
-	__be16 port;
-
-	addr = cma_src_addr(id_priv);
-	port = htons(bind_list->port);
-
-	switch (addr->sa_family) {
-	case AF_INET:
-		((struct sockaddr_in *) addr)->sin_port = port;
-		break;
-	case AF_INET6:
-		((struct sockaddr_in6 *) addr)->sin6_port = port;
-		break;
-	case AF_IB:
-		sib = (struct sockaddr_ib *) addr;
-		sid = be64_to_cpu(sib->sib_sid);
-		mask = be64_to_cpu(sib->sib_sid_mask);
-		sib->sib_sid = cpu_to_be64((sid & mask) | (u64) ntohs(port));
-		sib->sib_sid_mask = cpu_to_be64(~0ULL);
-		break;
-	}
-	id_priv->bind_list = bind_list;
-	hlist_add_head(&id_priv->node, &bind_list->owners);
-}
-
-static int cma_alloc_port(enum rdma_port_space ps,
-			  struct rdma_id_private *id_priv, unsigned short snum)
-{
-	struct rdma_bind_list *bind_list;
-	int ret;
-
-	bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
-	if (!bind_list)
-		return -ENOMEM;
-
-	ret = cma_ps_alloc(id_priv->id.route.addr.dev_addr.net, ps, bind_list,
-			   snum);
-	if (ret < 0)
-		goto err;
-
-	bind_list->ps = ps;
-	bind_list->port = (unsigned short)ret;
-	cma_bind_port(bind_list, id_priv);
-	return 0;
-err:
-	kfree(bind_list);
-	return ret == -ENOSPC ? -EADDRNOTAVAIL : ret;
-}
-
-static int cma_alloc_any_port(enum rdma_port_space ps,
-			      struct rdma_id_private *id_priv)
-{
-	static unsigned int last_used_port;
-	int low, high, remaining;
-	unsigned int rover;
-	struct vnet *net = id_priv->id.route.addr.dev_addr.net;
-	u32 rand;
-
-	inet_get_local_port_range(net, &low, &high);
-	remaining = (high - low) + 1;
-	get_random_bytes(&rand, sizeof(rand));
-	rover = rand % remaining + low;
-retry:
-	if (last_used_port != rover &&
-	    !cma_ps_find(net, ps, (unsigned short)rover)) {
-		int ret = cma_alloc_port(ps, id_priv, rover);
-		/*
-		 * Remember previously used port number in order to avoid
-		 * re-using same port immediately after it is closed.
-		 */
-		if (!ret)
-			last_used_port = rover;
-		if (ret != -EADDRNOTAVAIL)
-			return ret;
-	}
-	if (--remaining) {
-		rover++;
-		if ((rover < low) || (rover > high))
-			rover = low;
-		goto retry;
-	}
-	return -EADDRNOTAVAIL;
-}
-
-/*
- * Check that the requested port is available.  This is called when trying to
- * bind to a specific port, or when trying to listen on a bound port.  In
- * the latter case, the provided id_priv may already be on the bind_list, but
- * we still need to check that it's okay to start listening.
- */
-static int cma_check_port(struct rdma_bind_list *bind_list,
-			  struct rdma_id_private *id_priv, uint8_t reuseaddr)
-{
-	struct rdma_id_private *cur_id;
-	struct sockaddr *addr, *cur_addr;
-
-	addr = cma_src_addr(id_priv);
-	hlist_for_each_entry(cur_id, &bind_list->owners, node) {
-		if (id_priv == cur_id)
-			continue;
-
-		if ((cur_id->state != RDMA_CM_LISTEN) && reuseaddr &&
-		    cur_id->reuseaddr)
-			continue;
-
-		cur_addr = cma_src_addr(cur_id);
-		if (id_priv->afonly && cur_id->afonly &&
-		    (addr->sa_family != cur_addr->sa_family))
-			continue;
-
-		if (cma_any_addr(addr) || cma_any_addr(cur_addr))
-			return -EADDRNOTAVAIL;
-
-		if (!cma_addr_cmp(addr, cur_addr))
-			return -EADDRINUSE;
-	}
-	return 0;
-}
-
-static int cma_use_port(enum rdma_port_space ps,
-			struct rdma_id_private *id_priv)
-{
-	struct rdma_bind_list *bind_list;
-	unsigned short snum;
-	int ret;
-
-	snum = ntohs(cma_port(cma_src_addr(id_priv)));
-	if (snum < IPPORT_RESERVED &&
-	    priv_check(curthread, PRIV_NETINET_BINDANY) != 0)
-		return -EACCES;
-
-	bind_list = cma_ps_find(id_priv->id.route.addr.dev_addr.net, ps, snum);
-	if (!bind_list) {
-		ret = cma_alloc_port(ps, id_priv, snum);
-	} else {
-		ret = cma_check_port(bind_list, id_priv, id_priv->reuseaddr);
-		if (!ret)
-			cma_bind_port(bind_list, id_priv);
-	}
-	return ret;
-}
-
-static int cma_bind_listen(struct rdma_id_private *id_priv)
-{
-	struct rdma_bind_list *bind_list = id_priv->bind_list;
-	int ret = 0;
-
-	mutex_lock(&lock);
-	if (bind_list->owners.first->next)
-		ret = cma_check_port(bind_list, id_priv, 0);
-	mutex_unlock(&lock);
-	return ret;
-}
-
-static enum rdma_port_space cma_select_inet_ps(
-		struct rdma_id_private *id_priv)
-{
-	switch (id_priv->id.ps) {
-	case RDMA_PS_TCP:
-	case RDMA_PS_UDP:
-	case RDMA_PS_IPOIB:
-	case RDMA_PS_IB:
-		return id_priv->id.ps;
-	default:
-
-		return 0;
-	}
-}
-
-static enum rdma_port_space cma_select_ib_ps(struct rdma_id_private *id_priv)
-{
-	enum rdma_port_space ps = 0;
-	struct sockaddr_ib *sib;
-	u64 sid_ps, mask, sid;
-
-	sib = (struct sockaddr_ib *) cma_src_addr(id_priv);
-	mask = be64_to_cpu(sib->sib_sid_mask) & RDMA_IB_IP_PS_MASK;
-	sid = be64_to_cpu(sib->sib_sid) & mask;
-
-	if ((id_priv->id.ps == RDMA_PS_IB) && (sid == (RDMA_IB_IP_PS_IB & mask))) {
-		sid_ps = RDMA_IB_IP_PS_IB;
-		ps = RDMA_PS_IB;
-	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_TCP)) &&
-		   (sid == (RDMA_IB_IP_PS_TCP & mask))) {
-		sid_ps = RDMA_IB_IP_PS_TCP;
-		ps = RDMA_PS_TCP;
-	} else if (((id_priv->id.ps == RDMA_PS_IB) || (id_priv->id.ps == RDMA_PS_UDP)) &&
-		   (sid == (RDMA_IB_IP_PS_UDP & mask))) {
-		sid_ps = RDMA_IB_IP_PS_UDP;
-		ps = RDMA_PS_UDP;
-	}
-
-	if (ps) {
-		sib->sib_sid = cpu_to_be64(sid_ps | ntohs(cma_port((struct sockaddr *) sib)));
-		sib->sib_sid_mask = cpu_to_be64(RDMA_IB_IP_PS_MASK |
-						be64_to_cpu(sib->sib_sid_mask));
-	}
-	return ps;
-}
-
-static int cma_get_port(struct rdma_id_private *id_priv)
-{
-	enum rdma_port_space ps;
-	int ret;
-
-	if (cma_family(id_priv) != AF_IB)
-		ps = cma_select_inet_ps(id_priv);
-	else
-		ps = cma_select_ib_ps(id_priv);
-	if (!ps)
-		return -EPROTONOSUPPORT;
-
-	mutex_lock(&lock);
-	if (cma_any_port(cma_src_addr(id_priv)))
-		ret = cma_alloc_any_port(ps, id_priv);
-	else
-		ret = cma_use_port(ps, id_priv);
-	mutex_unlock(&lock);
-
-	return ret;
-}
-
-static int cma_check_linklocal(struct rdma_dev_addr *dev_addr,
-			       struct sockaddr *addr)
-{
-#ifdef INET6
-	struct sockaddr_in6 sin6;
-
-	if (addr->sa_family != AF_INET6)
-		return 0;
-
-	sin6 = *(struct sockaddr_in6 *)addr;
-
-	if (!(IN6_IS_SCOPE_LINKLOCAL(&sin6.sin6_addr)))
-		return 0;
-
-	if (sa6_recoverscope(&sin6) || sin6.sin6_scope_id == 0)
-		return -EINVAL;
-
-	dev_addr->bound_dev_if = sin6.sin6_scope_id;
-#endif
-	return 0;
-}
-
-int rdma_listen(struct rdma_cm_id *id, int backlog)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (id_priv->state == RDMA_CM_IDLE) {
-		id->route.addr.src_addr.ss_family = AF_INET;
-		ret = rdma_bind_addr(id, cma_src_addr(id_priv));
-		if (ret)
-			return ret;
-	}
-
-	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_LISTEN))
-		return -EINVAL;
-
-	if (id_priv->reuseaddr) {
-		ret = cma_bind_listen(id_priv);
-		if (ret)
-			goto err;
-	}
-
-	id_priv->backlog = backlog;
-	if (id->device) {
-		if (rdma_cap_ib_cm(id->device, 1)) {
-			ret = cma_ib_listen(id_priv);
-			if (ret)
-				goto err;
-		} else if (rdma_cap_iw_cm(id->device, 1)) {
-			ret = cma_iw_listen(id_priv, backlog);
-			if (ret)
-				goto err;
-		} else {
-			ret = -ENOSYS;
-			goto err;
-		}
-	} else
-		cma_listen_on_all(id_priv);
-
-	return 0;
-err:
-	id_priv->backlog = 0;
-	cma_comp_exch(id_priv, RDMA_CM_LISTEN, RDMA_CM_ADDR_BOUND);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_listen);
-
-int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&
-	    addr->sa_family != AF_IB)
-		return -EAFNOSUPPORT;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	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);
-	if (ret)
-		goto err1;
-
-	memcpy(cma_src_addr(id_priv), addr, rdma_addr_size(addr));
-	if (!cma_any_addr(addr)) {
-		ret = cma_translate_addr(addr, &id->route.addr.dev_addr);
-		if (ret)
-			goto err1;
-
-		ret = cma_acquire_dev(id_priv, NULL);
-		if (ret)
-			goto err1;
-	}
-
-	if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) {
-		if (addr->sa_family == AF_INET)
-			id_priv->afonly = 1;
-#ifdef INET6
-		else if (addr->sa_family == AF_INET6) {
-			CURVNET_SET_QUIET(id_priv->id.route.addr.dev_addr.net);
-			id_priv->afonly = V_ip6_v6only;
-			CURVNET_RESTORE();
-		}
-#endif
-	}
-	ret = cma_get_port(id_priv);
-	if (ret)
-		goto err2;
-
-	return 0;
-err2:
-	if (id_priv->cma_dev)
-		cma_release_dev(id_priv);
-err1:
-	cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_IDLE);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_bind_addr);
-
-static int cma_format_hdr(void *hdr, struct rdma_id_private *id_priv)
-{
-	struct cma_hdr *cma_hdr;
-
-	cma_hdr = hdr;
-	cma_hdr->cma_version = CMA_VERSION;
-	if (cma_family(id_priv) == AF_INET) {
-		struct sockaddr_in *src4, *dst4;
-
-		src4 = (struct sockaddr_in *) cma_src_addr(id_priv);
-		dst4 = (struct sockaddr_in *) cma_dst_addr(id_priv);
-
-		cma_set_ip_ver(cma_hdr, 4);
-		cma_hdr->src_addr.ip4.addr = src4->sin_addr.s_addr;
-		cma_hdr->dst_addr.ip4.addr = dst4->sin_addr.s_addr;
-		cma_hdr->port = src4->sin_port;
-	} else if (cma_family(id_priv) == AF_INET6) {
-		struct sockaddr_in6 *src6, *dst6;
-
-		src6 = (struct sockaddr_in6 *) cma_src_addr(id_priv);
-		dst6 = (struct sockaddr_in6 *) cma_dst_addr(id_priv);
-
-		cma_set_ip_ver(cma_hdr, 6);
-		cma_hdr->src_addr.ip6 = src6->sin6_addr;
-		cma_hdr->dst_addr.ip6 = dst6->sin6_addr;
-		cma_hdr->port = src6->sin6_port;
-	}
-	return 0;
-}
-
-static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
-				struct ib_cm_event *ib_event)
-{
-	struct rdma_id_private *id_priv = cm_id->context;
-	struct rdma_cm_event event;
-	struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
-	int ret = 0;
-
-	mutex_lock(&id_priv->handler_mutex);
-	if (id_priv->state != RDMA_CM_CONNECT)
-		goto out;
-
-	memset(&event, 0, sizeof event);
-	switch (ib_event->event) {
-	case IB_CM_SIDR_REQ_ERROR:
-		event.event = RDMA_CM_EVENT_UNREACHABLE;
-		event.status = -ETIMEDOUT;
-		break;
-	case IB_CM_SIDR_REP_RECEIVED:
-		event.param.ud.private_data = ib_event->private_data;
-		event.param.ud.private_data_len = IB_CM_SIDR_REP_PRIVATE_DATA_SIZE;
-		if (rep->status != IB_SIDR_SUCCESS) {
-			event.event = RDMA_CM_EVENT_UNREACHABLE;
-			event.status = ib_event->param.sidr_rep_rcvd.status;
-			break;
-		}
-		ret = cma_set_qkey(id_priv, rep->qkey);
-		if (ret) {
-			event.event = RDMA_CM_EVENT_ADDR_ERROR;
-			event.status = ret;
-			break;
-		}
-		ret = ib_init_ah_from_path(id_priv->id.device,
-					   id_priv->id.port_num,
-					   id_priv->id.route.path_rec,
-					   &event.param.ud.ah_attr);
-		if (ret) {
-			event.event = RDMA_CM_EVENT_ADDR_ERROR;
-			event.status = ret;
-			break;
-		}
-		event.param.ud.qp_num = rep->qpn;
-		event.param.ud.qkey = rep->qkey;
-		event.event = RDMA_CM_EVENT_ESTABLISHED;
-		event.status = 0;
-		break;
-	default:
-		pr_err("RDMA CMA: unexpected IB CM event: %d\n",
-		       ib_event->event);
-		goto out;
-	}
-
-	ret = id_priv->id.event_handler(&id_priv->id, &event);
-	if (ret) {
-		/* Destroy the CM ID by returning a non-zero value. */
-		id_priv->cm_id.ib = NULL;
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		mutex_unlock(&id_priv->handler_mutex);
-		rdma_destroy_id(&id_priv->id);
-		return ret;
-	}
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	return ret;
-}
-
-static int cma_resolve_ib_udp(struct rdma_id_private *id_priv,
-			      struct rdma_conn_param *conn_param)
-{
-	struct ib_cm_sidr_req_param req;
-	struct ib_cm_id	*id;
-	void *private_data;
-	int offset, ret;
-
-	memset(&req, 0, sizeof req);
-	offset = cma_user_data_offset(id_priv);
-	req.private_data_len = offset + conn_param->private_data_len;
-	if (req.private_data_len < conn_param->private_data_len)
-		return -EINVAL;
-
-	if (req.private_data_len) {
-		private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
-		if (!private_data)
-			return -ENOMEM;
-	} else {
-		private_data = NULL;
-	}
-
-	if (conn_param->private_data && conn_param->private_data_len)
-		memcpy((char *)private_data + offset, conn_param->private_data,
-		       conn_param->private_data_len);
-
-	if (private_data) {
-		ret = cma_format_hdr(private_data, id_priv);
-		if (ret)
-			goto out;
-		req.private_data = private_data;
-	}
-
-	id = ib_create_cm_id(id_priv->id.device, cma_sidr_rep_handler,
-			     id_priv);
-	if (IS_ERR(id)) {
-		ret = PTR_ERR(id);
-		goto out;
-	}
-	id_priv->cm_id.ib = id;
-
-	req.path = id_priv->id.route.path_rec;
-	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));
-	req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);
-	req.max_cm_retries = CMA_MAX_CM_RETRIES;
-
-	ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);
-	if (ret) {
-		ib_destroy_cm_id(id_priv->cm_id.ib);
-		id_priv->cm_id.ib = NULL;
-	}
-out:
-	kfree(private_data);
-	return ret;
-}
-
-static int cma_connect_ib(struct rdma_id_private *id_priv,
-			  struct rdma_conn_param *conn_param)
-{
-	struct ib_cm_req_param req;
-	struct rdma_route *route;
-	void *private_data;
-	struct ib_cm_id	*id;
-	int offset, ret;
-
-	memset(&req, 0, sizeof req);
-	offset = cma_user_data_offset(id_priv);
-	req.private_data_len = offset + conn_param->private_data_len;
-	if (req.private_data_len < conn_param->private_data_len)
-		return -EINVAL;
-
-	if (req.private_data_len) {
-		private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
-		if (!private_data)
-			return -ENOMEM;
-	} else {
-		private_data = NULL;
-	}
-
-	if (conn_param->private_data && conn_param->private_data_len)
-		memcpy((char *)private_data + offset, conn_param->private_data,
-		       conn_param->private_data_len);
-
-	id = ib_create_cm_id(id_priv->id.device, cma_ib_handler, id_priv);
-	if (IS_ERR(id)) {
-		ret = PTR_ERR(id);
-		goto out;
-	}
-	id_priv->cm_id.ib = id;
-
-	route = &id_priv->id.route;
-	if (private_data) {
-		ret = cma_format_hdr(private_data, id_priv);
-		if (ret)
-			goto out;
-		req.private_data = private_data;
-	}
-
-	req.primary_path = &route->path_rec[0];
-	if (route->num_paths == 2)
-		req.alternate_path = &route->path_rec[1];
-
-	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));
-	req.qp_num = id_priv->qp_num;
-	req.qp_type = id_priv->id.qp_type;
-	req.starting_psn = id_priv->seq_num;
-	req.responder_resources = conn_param->responder_resources;
-	req.initiator_depth = conn_param->initiator_depth;
-	req.flow_control = conn_param->flow_control;
-	req.retry_count = min_t(u8, 7, conn_param->retry_count);
-	req.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);
-	req.remote_cm_response_timeout = CMA_CM_RESPONSE_TIMEOUT;
-	req.local_cm_response_timeout = CMA_CM_RESPONSE_TIMEOUT;
-	req.max_cm_retries = CMA_MAX_CM_RETRIES;
-	req.srq = id_priv->srq ? 1 : 0;
-
-	ret = ib_send_cm_req(id_priv->cm_id.ib, &req);
-out:
-	if (ret && !IS_ERR(id)) {
-		ib_destroy_cm_id(id);
-		id_priv->cm_id.ib = NULL;
-	}
-
-	kfree(private_data);
-	return ret;
-}
-
-static int cma_connect_iw(struct rdma_id_private *id_priv,
-			  struct rdma_conn_param *conn_param)
-{
-	struct iw_cm_id *cm_id;
-	int ret;
-	struct iw_cm_conn_param iw_param;
-
-	cm_id = iw_create_cm_id(id_priv->id.device, cma_iw_handler, id_priv);
-	if (IS_ERR(cm_id))
-		return PTR_ERR(cm_id);
-
-	cm_id->tos = id_priv->tos;
-	id_priv->cm_id.iw = cm_id;
-
-	memcpy(&cm_id->local_addr, cma_src_addr(id_priv),
-	       rdma_addr_size(cma_src_addr(id_priv)));
-	memcpy(&cm_id->remote_addr, cma_dst_addr(id_priv),
-	       rdma_addr_size(cma_dst_addr(id_priv)));
-
-	ret = cma_modify_qp_rtr(id_priv, conn_param);
-	if (ret)
-		goto out;
-
-	if (conn_param) {
-		iw_param.ord = conn_param->initiator_depth;
-		iw_param.ird = conn_param->responder_resources;
-		iw_param.private_data = conn_param->private_data;
-		iw_param.private_data_len = conn_param->private_data_len;
-		iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;
-	} else {
-		memset(&iw_param, 0, sizeof iw_param);
-		iw_param.qpn = id_priv->qp_num;
-	}
-	ret = iw_cm_connect(cm_id, &iw_param);
-out:
-	if (ret) {
-		iw_destroy_cm_id(cm_id);
-		id_priv->cm_id.iw = NULL;
-	}
-	return ret;
-}
-
-int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_CONNECT))
-		return -EINVAL;
-
-	if (!id->qp) {
-		id_priv->qp_num = conn_param->qp_num;
-		id_priv->srq = conn_param->srq;
-	}
-
-	if (rdma_cap_ib_cm(id->device, id->port_num)) {
-		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);
-	} else if (rdma_cap_iw_cm(id->device, id->port_num))
-		ret = cma_connect_iw(id_priv, conn_param);
-	else
-		ret = -ENOSYS;
-	if (ret)
-		goto err;
-
-	return 0;
-err:
-	cma_comp_exch(id_priv, RDMA_CM_CONNECT, RDMA_CM_ROUTE_RESOLVED);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_connect);
-
-static int cma_accept_ib(struct rdma_id_private *id_priv,
-			 struct rdma_conn_param *conn_param)
-{
-	struct ib_cm_rep_param rep;
-	int ret;
-
-	ret = cma_modify_qp_rtr(id_priv, conn_param);
-	if (ret)
-		goto out;
-
-	ret = cma_modify_qp_rts(id_priv, conn_param);
-	if (ret)
-		goto out;
-
-	memset(&rep, 0, sizeof rep);
-	rep.qp_num = id_priv->qp_num;
-	rep.starting_psn = id_priv->seq_num;
-	rep.private_data = conn_param->private_data;
-	rep.private_data_len = conn_param->private_data_len;
-	rep.responder_resources = conn_param->responder_resources;
-	rep.initiator_depth = conn_param->initiator_depth;
-	rep.failover_accepted = 0;
-	rep.flow_control = conn_param->flow_control;
-	rep.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count);
-	rep.srq = id_priv->srq ? 1 : 0;
-
-	ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);
-out:
-	return ret;
-}
-
-static int cma_accept_iw(struct rdma_id_private *id_priv,
-		  struct rdma_conn_param *conn_param)
-{
-	struct iw_cm_conn_param iw_param;
-	int ret;
-
-	ret = cma_modify_qp_rtr(id_priv, conn_param);
-	if (ret)
-		return ret;
-
-	iw_param.ord = conn_param->initiator_depth;
-	iw_param.ird = conn_param->responder_resources;
-	iw_param.private_data = conn_param->private_data;
-	iw_param.private_data_len = conn_param->private_data_len;
-	if (id_priv->id.qp) {
-		iw_param.qpn = id_priv->qp_num;
-	} else
-		iw_param.qpn = conn_param->qp_num;
-
-	return iw_cm_accept(id_priv->cm_id.iw, &iw_param);
-}
-
-static int cma_send_sidr_rep(struct rdma_id_private *id_priv,
-			     enum ib_cm_sidr_status status, u32 qkey,
-			     const void *private_data, int private_data_len)
-{
-	struct ib_cm_sidr_rep_param rep;
-	int ret;
-
-	memset(&rep, 0, sizeof rep);
-	rep.status = status;
-	if (status == IB_SIDR_SUCCESS) {
-		ret = cma_set_qkey(id_priv, qkey);
-		if (ret)
-			return ret;
-		rep.qp_num = id_priv->qp_num;
-		rep.qkey = id_priv->qkey;
-	}
-	rep.private_data = private_data;
-	rep.private_data_len = private_data_len;
-
-	return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);
-}
-
-int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-
-	id_priv->owner = task_pid_nr(current);
-
-	if (!cma_comp(id_priv, RDMA_CM_CONNECT))
-		return -EINVAL;
-
-	if (!id->qp && conn_param) {
-		id_priv->qp_num = conn_param->qp_num;
-		id_priv->srq = conn_param->srq;
-	}
-
-	if (rdma_cap_ib_cm(id->device, id->port_num)) {
-		if (id->qp_type == IB_QPT_UD) {
-			if (conn_param)
-				ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
-							conn_param->qkey,
-							conn_param->private_data,
-							conn_param->private_data_len);
-			else
-				ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
-							0, NULL, 0);
-		} else {
-			if (conn_param)
-				ret = cma_accept_ib(id_priv, conn_param);
-			else
-				ret = cma_rep_recv(id_priv);
-		}
-	} else if (rdma_cap_iw_cm(id->device, id->port_num))
-		ret = cma_accept_iw(id_priv, conn_param);
-	else
-		ret = -ENOSYS;
-
-	if (ret)
-		goto reject;
-
-	return 0;
-reject:
-	cma_modify_qp_err(id_priv);
-	rdma_reject(id, NULL, 0);
-	return ret;
-}
-EXPORT_SYMBOL(rdma_accept);
-
-int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!id_priv->cm_id.ib)
-		return -EINVAL;
-
-	switch (id->device->node_type) {
-	case RDMA_NODE_IB_CA:
-		ret = ib_cm_notify(id_priv->cm_id.ib, event);
-		break;
-	default:
-		ret = 0;
-		break;
-	}
-	return ret;
-}
-EXPORT_SYMBOL(rdma_notify);
-
-int rdma_reject(struct rdma_cm_id *id, const void *private_data,
-		u8 private_data_len)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!id_priv->cm_id.ib)
-		return -EINVAL;
-
-	if (rdma_cap_ib_cm(id->device, id->port_num)) {
-		if (id->qp_type == IB_QPT_UD)
-			ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT, 0,
-						private_data, private_data_len);
-		else
-			ret = ib_send_cm_rej(id_priv->cm_id.ib,
-					     IB_CM_REJ_CONSUMER_DEFINED, NULL,
-					     0, private_data, private_data_len);
-	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {
-		ret = iw_cm_reject(id_priv->cm_id.iw,
-				   private_data, private_data_len);
-	} else
-		ret = -ENOSYS;
-
-	return ret;
-}
-EXPORT_SYMBOL(rdma_reject);
-
-int rdma_disconnect(struct rdma_cm_id *id)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	if (!id_priv->cm_id.ib)
-		return -EINVAL;
-
-	if (rdma_cap_ib_cm(id->device, id->port_num)) {
-		ret = cma_modify_qp_err(id_priv);
-		if (ret)
-			goto out;
-		/* Initiate or respond to a disconnect. */
-		if (ib_send_cm_dreq(id_priv->cm_id.ib, NULL, 0))
-			ib_send_cm_drep(id_priv->cm_id.ib, NULL, 0);
-	} else if (rdma_cap_iw_cm(id->device, id->port_num)) {
-		ret = iw_cm_disconnect(id_priv->cm_id.iw, 0);
-	} else
-		ret = -EINVAL;
-
-out:
-	return ret;
-}
-EXPORT_SYMBOL(rdma_disconnect);
-
-static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
-{
-	struct rdma_id_private *id_priv;
-	struct cma_multicast *mc = multicast->context;
-	struct rdma_cm_event event;
-	int ret = 0;
-
-	id_priv = mc->id_priv;
-	mutex_lock(&id_priv->handler_mutex);
-	if (id_priv->state != RDMA_CM_ADDR_BOUND &&
-	    id_priv->state != RDMA_CM_ADDR_RESOLVED)
-		goto out;
-
-	if (!status)
-		status = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));
-	mutex_lock(&id_priv->qp_mutex);
-	if (!status && id_priv->id.qp)
-		status = ib_attach_mcast(id_priv->id.qp, &multicast->rec.mgid,
-					 be16_to_cpu(multicast->rec.mlid));
-	mutex_unlock(&id_priv->qp_mutex);
-
-	memset(&event, 0, sizeof event);
-	event.status = status;
-	event.param.ud.private_data = mc->context;
-	if (!status) {
-		struct rdma_dev_addr *dev_addr =
-			&id_priv->id.route.addr.dev_addr;
-		struct net_device *ndev =
-			dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);
-		enum ib_gid_type gid_type =
-			id_priv->cma_dev->default_gid_type[id_priv->id.port_num -
-			rdma_start_port(id_priv->cma_dev->device)];
-
-		event.event = RDMA_CM_EVENT_MULTICAST_JOIN;
-		ib_init_ah_from_mcmember(id_priv->id.device,
-					 id_priv->id.port_num, &multicast->rec,
-					 ndev, gid_type,
-					 &event.param.ud.ah_attr);
-		event.param.ud.qp_num = 0xFFFFFF;
-		event.param.ud.qkey = be32_to_cpu(multicast->rec.qkey);
-		if (ndev)
-			dev_put(ndev);
-	} else
-		event.event = RDMA_CM_EVENT_MULTICAST_ERROR;
-
-	ret = id_priv->id.event_handler(&id_priv->id, &event);
-	if (ret) {
-		cma_exch(id_priv, RDMA_CM_DESTROYING);
-		mutex_unlock(&id_priv->handler_mutex);
-		rdma_destroy_id(&id_priv->id);
-		return 0;
-	}
-
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	return 0;
-}
-
-static void cma_set_mgid(struct rdma_id_private *id_priv,
-			 struct sockaddr *addr, union ib_gid *mgid)
-{
-	unsigned char mc_map[MAX_ADDR_LEN];
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	struct sockaddr_in *sin = (struct sockaddr_in *) addr;
-	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) addr;
-
-	if (cma_any_addr(addr)) {
-		memset(mgid, 0, sizeof *mgid);
-	} else if ((addr->sa_family == AF_INET6) &&
-		   ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFFF0FFFF) ==
-								 0xFF10A01B)) {
-		/* IPv6 address is an SA assigned MGID. */
-		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);
-	} else if (addr->sa_family == AF_IB) {
-		memcpy(mgid, &((struct sockaddr_ib *) addr)->sib_addr, sizeof *mgid);
-	} else if (addr->sa_family == AF_INET6) {
-		ipv6_ib_mc_map(&sin6->sin6_addr, dev_addr->broadcast, mc_map);
-		if (id_priv->id.ps == RDMA_PS_UDP)
-			mc_map[7] = 0x01;	/* Use RDMA CM signature */
-		*mgid = *(union ib_gid *) (mc_map + 4);
-	} else {
-		ip_ib_mc_map(sin->sin_addr.s_addr, dev_addr->broadcast, mc_map);
-		if (id_priv->id.ps == RDMA_PS_UDP)
-			mc_map[7] = 0x01;	/* Use RDMA CM signature */
-		*mgid = *(union ib_gid *) (mc_map + 4);
-	}
-}
-
-static void cma_query_sa_classport_info_cb(int status,
-					   struct ib_class_port_info *rec,
-					   void *context)
-{
-	struct class_port_info_context *cb_ctx = context;
-
-	WARN_ON(!context);
-
-	if (status || !rec) {
-		pr_debug("RDMA CM: %s port %u failed query ClassPortInfo status: %d\n",
-			 cb_ctx->device->name, cb_ctx->port_num, status);
-		goto out;
-	}
-
-	memcpy(cb_ctx->class_port_info, rec, sizeof(struct ib_class_port_info));
-
-out:
-	complete(&cb_ctx->done);
-}
-
-static int cma_query_sa_classport_info(struct ib_device *device, u8 port_num,
-				       struct ib_class_port_info *class_port_info)
-{
-	struct class_port_info_context *cb_ctx;
-	int ret;
-
-	cb_ctx = kmalloc(sizeof(*cb_ctx), GFP_KERNEL);
-	if (!cb_ctx)
-		return -ENOMEM;
-
-	cb_ctx->device = device;
-	cb_ctx->class_port_info = class_port_info;
-	cb_ctx->port_num = port_num;
-	init_completion(&cb_ctx->done);
-
-	ret = ib_sa_classport_info_rec_query(&sa_client, device, port_num,
-					     CMA_QUERY_CLASSPORT_INFO_TIMEOUT,
-					     GFP_KERNEL, cma_query_sa_classport_info_cb,
-					     cb_ctx, &cb_ctx->sa_query);
-	if (ret < 0) {
-		pr_err("RDMA CM: %s port %u failed to send ClassPortInfo query, ret: %d\n",
-		       device->name, port_num, ret);
-		goto out;
-	}
-
-	wait_for_completion(&cb_ctx->done);
-
-out:
-	kfree(cb_ctx);
-	return ret;
-}
-
-static int cma_join_ib_multicast(struct rdma_id_private *id_priv,
-				 struct cma_multicast *mc)
-{
-	struct ib_sa_mcmember_rec rec;
-	struct ib_class_port_info class_port_info;
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	ib_sa_comp_mask comp_mask;
-	int ret;
-
-	ib_addr_get_mgid(dev_addr, &rec.mgid);
-	ret = ib_sa_get_mcmember_rec(id_priv->id.device, id_priv->id.port_num,
-				     &rec.mgid, &rec);
-	if (ret)
-		return ret;
-
-	ret = cma_set_qkey(id_priv, 0);
-	if (ret)
-		return ret;
-
-	cma_set_mgid(id_priv, (struct sockaddr *) &mc->addr, &rec.mgid);
-	rec.qkey = cpu_to_be32(id_priv->qkey);
-	rdma_addr_get_sgid(dev_addr, &rec.port_gid);
-	rec.pkey = cpu_to_be16(ib_addr_get_pkey(dev_addr));
-	rec.join_state = mc->join_state;
-
-	if (rec.join_state == BIT(SENDONLY_FULLMEMBER_JOIN)) {
-		ret = cma_query_sa_classport_info(id_priv->id.device,
-						  id_priv->id.port_num,
-						  &class_port_info);
-
-		if (ret)
-			return ret;
-
-		if (!(ib_get_cpi_capmask2(&class_port_info) &
-		      IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT)) {
-			pr_warn("RDMA CM: %s port %u Unable to multicast join\n"
-				"RDMA CM: SM doesn't support Send Only Full Member option\n",
-				id_priv->id.device->name, id_priv->id.port_num);
-			return -EOPNOTSUPP;
-		}
-	}
-
-	comp_mask = IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID |
-		    IB_SA_MCMEMBER_REC_PKEY | IB_SA_MCMEMBER_REC_JOIN_STATE |
-		    IB_SA_MCMEMBER_REC_QKEY | IB_SA_MCMEMBER_REC_SL |
-		    IB_SA_MCMEMBER_REC_FLOW_LABEL |
-		    IB_SA_MCMEMBER_REC_TRAFFIC_CLASS;
-
-	if (id_priv->id.ps == RDMA_PS_IPOIB)
-		comp_mask |= IB_SA_MCMEMBER_REC_RATE |
-			     IB_SA_MCMEMBER_REC_RATE_SELECTOR |
-			     IB_SA_MCMEMBER_REC_MTU_SELECTOR |
-			     IB_SA_MCMEMBER_REC_MTU |
-			     IB_SA_MCMEMBER_REC_HOP_LIMIT;
-
-	mc->multicast.ib = ib_sa_join_multicast(&sa_client, id_priv->id.device,
-						id_priv->id.port_num, &rec,
-						comp_mask, GFP_KERNEL,
-						cma_ib_mc_handler, mc);
-	return PTR_ERR_OR_ZERO(mc->multicast.ib);
-}
-
-static void iboe_mcast_work_handler(struct work_struct *work)
-{
-	struct iboe_mcast_work *mw = container_of(work, struct iboe_mcast_work, work);
-	struct cma_multicast *mc = mw->mc;
-	struct ib_sa_multicast *m = mc->multicast.ib;
-
-	mc->multicast.ib->context = mc;
-	cma_ib_mc_handler(0, m);
-	kref_put(&mc->mcref, release_mc);
-	kfree(mw);
-}
-
-static void cma_iboe_set_mgid(struct sockaddr *addr, union ib_gid *mgid)
-{
-	struct sockaddr_in *sin = (struct sockaddr_in *)addr;
-	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
-
-	if (cma_any_addr(addr)) {
-		memset(mgid, 0, sizeof *mgid);
-	} else if (addr->sa_family == AF_INET6) {
-		memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);
-	} else {
-		mgid->raw[0] = 0xff;
-		mgid->raw[1] = 0x0e;
-		mgid->raw[2] = 0;
-		mgid->raw[3] = 0;
-		mgid->raw[4] = 0;
-		mgid->raw[5] = 0;
-		mgid->raw[6] = 0;
-		mgid->raw[7] = 0;
-		mgid->raw[8] = 0;
-		mgid->raw[9] = 0;
-		mgid->raw[10] = 0xff;
-		mgid->raw[11] = 0xff;
-		*(__be32 *)(&mgid->raw[12]) = sin->sin_addr.s_addr;
-	}
-}
-
-static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
-				   struct cma_multicast *mc)
-{
-	struct iboe_mcast_work *work;
-	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
-	int err = 0;
-	struct sockaddr *addr = (struct sockaddr *)&mc->addr;
-	struct net_device *ndev = NULL;
-	enum ib_gid_type gid_type;
-	bool send_only;
-
-	send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);
-
-	if (cma_zero_addr((struct sockaddr *)&mc->addr))
-		return -EINVAL;
-
-	work = kzalloc(sizeof *work, GFP_KERNEL);
-	if (!work)
-		return -ENOMEM;
-
-	mc->multicast.ib = kzalloc(sizeof(struct ib_sa_multicast), GFP_KERNEL);
-	if (!mc->multicast.ib) {
-		err = -ENOMEM;
-		goto out1;
-	}
-
-	cma_iboe_set_mgid(addr, &mc->multicast.ib->rec.mgid);
-
-	mc->multicast.ib->rec.pkey = cpu_to_be16(0xffff);
-	if (id_priv->id.ps == RDMA_PS_UDP)
-		mc->multicast.ib->rec.qkey = cpu_to_be32(RDMA_UDP_QKEY);
-
-	if (dev_addr->bound_dev_if)
-		ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);
-	if (!ndev) {
-		err = -ENODEV;
-		goto out2;
-	}
-	mc->multicast.ib->rec.rate = iboe_get_rate(ndev);
-	mc->multicast.ib->rec.hop_limit = 1;
-	mc->multicast.ib->rec.mtu = iboe_get_mtu(ndev->if_mtu);
-
-	gid_type = id_priv->cma_dev->default_gid_type[id_priv->id.port_num -
-		   rdma_start_port(id_priv->cma_dev->device)];
-	if (addr->sa_family == AF_INET) {
-		if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
-			mc->multicast.ib->rec.hop_limit = IPV6_DEFAULT_HOPLIMIT;
-			if (!send_only) {
-				mc->igmp_joined = true;
-			}
-		}
-	} else {
-		if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)
-			err = -ENOTSUPP;
-	}
-	dev_put(ndev);
-	if (err || !mc->multicast.ib->rec.mtu) {
-		if (!err)
-			err = -EINVAL;
-		goto out2;
-	}
-	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
-		    &mc->multicast.ib->rec.port_gid);
-	work->id = id_priv;
-	work->mc = mc;
-	INIT_WORK(&work->work, iboe_mcast_work_handler);
-	kref_get(&mc->mcref);
-	queue_work(cma_wq, &work->work);
-
-	return 0;
-
-out2:
-	kfree(mc->multicast.ib);
-out1:
-	kfree(work);
-	return err;
-}
-
-int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
-			u8 join_state, void *context)
-{
-	struct rdma_id_private *id_priv;
-	struct cma_multicast *mc;
-	int ret;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	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);
-	if (!mc)
-		return -ENOMEM;
-
-	memcpy(&mc->addr, addr, rdma_addr_size(addr));
-	mc->context = context;
-	mc->id_priv = id_priv;
-	mc->igmp_joined = false;
-	mc->join_state = join_state;
-	spin_lock(&id_priv->lock);
-	list_add(&mc->list, &id_priv->mc_list);
-	spin_unlock(&id_priv->lock);
-
-	if (rdma_protocol_roce(id->device, id->port_num)) {
-		kref_init(&mc->mcref);
-		ret = cma_iboe_join_multicast(id_priv, mc);
-	} else if (rdma_cap_ib_mcast(id->device, id->port_num))
-		ret = cma_join_ib_multicast(id_priv, mc);
-	else
-		ret = -ENOSYS;
-
-	if (ret) {
-		spin_lock_irq(&id_priv->lock);
-		list_del(&mc->list);
-		spin_unlock_irq(&id_priv->lock);
-		kfree(mc);
-	}
-	return ret;
-}
-EXPORT_SYMBOL(rdma_join_multicast);
-
-void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr)
-{
-	struct rdma_id_private *id_priv;
-	struct cma_multicast *mc;
-
-	id_priv = container_of(id, struct rdma_id_private, id);
-	spin_lock_irq(&id_priv->lock);
-	list_for_each_entry(mc, &id_priv->mc_list, list) {
-		if (!memcmp(&mc->addr, addr, rdma_addr_size(addr))) {
-			list_del(&mc->list);
-			spin_unlock_irq(&id_priv->lock);
-
-			if (id->qp)
-				ib_detach_mcast(id->qp,
-						&mc->multicast.ib->rec.mgid,
-						be16_to_cpu(mc->multicast.ib->rec.mlid));
-
-			BUG_ON(id_priv->cma_dev->device != id->device);
-
-			if (rdma_cap_ib_mcast(id->device, id->port_num)) {
-				ib_sa_free_multicast(mc->multicast.ib);
-				kfree(mc);
-			} else if (rdma_protocol_roce(id->device, id->port_num)) {
-				if (mc->igmp_joined) {
-					struct rdma_dev_addr *dev_addr =
-						&id->route.addr.dev_addr;
-					struct net_device *ndev = NULL;
-
-					if (dev_addr->bound_dev_if)
-						ndev = dev_get_by_index(dev_addr->net,
-									dev_addr->bound_dev_if);
-					if (ndev) {
-						dev_put(ndev);
-					}
-					mc->igmp_joined = false;
-				}
-				kref_put(&mc->mcref, release_mc);
-			}
-			return;
-		}
-	}
-	spin_unlock_irq(&id_priv->lock);
-}
-EXPORT_SYMBOL(rdma_leave_multicast);
-
-static int
-sysctl_cma_default_roce_mode(SYSCTL_HANDLER_ARGS)
-{
-	struct cma_device *cma_dev = arg1;
-	const int port = arg2;
-	char buf[64];
-	int error;
-
-	strlcpy(buf, ib_cache_gid_type_str(
-	    cma_get_default_gid_type(cma_dev, port)), sizeof(buf));
-
-	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
-	if (error != 0 || req->newptr == NULL)
-		goto done;
-
-	error = ib_cache_gid_parse_type_str(buf);
-	if (error < 0) {
-		error = EINVAL;
-		goto done;
-	}
-
-	cma_set_default_gid_type(cma_dev, port, error);
-	error = 0;
-done:
-	return (error);
-}
-
-static void cma_add_one(struct ib_device *device)
-{
-	struct cma_device *cma_dev;
-	struct rdma_id_private *id_priv;
-	unsigned int i;
-	unsigned long supported_gids = 0;
-
-	cma_dev = kmalloc(sizeof *cma_dev, GFP_KERNEL);
-	if (!cma_dev)
-		return;
-
-	sysctl_ctx_init(&cma_dev->sysctl_ctx);
-
-	cma_dev->device = device;
-	cma_dev->default_gid_type = kcalloc(device->phys_port_cnt,
-					    sizeof(*cma_dev->default_gid_type),
-					    GFP_KERNEL);
-	if (!cma_dev->default_gid_type) {
-		kfree(cma_dev);
-		return;
-	}
-	for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
-		supported_gids = roce_gid_type_mask_support(device, i);
-		WARN_ON(!supported_gids);
-		cma_dev->default_gid_type[i - rdma_start_port(device)] =
-			find_first_bit(&supported_gids, BITS_PER_LONG);
-	}
-
-	init_completion(&cma_dev->comp);
-	atomic_set(&cma_dev->refcount, 1);
-	INIT_LIST_HEAD(&cma_dev->id_list);
-	ib_set_client_data(device, &cma_client, cma_dev);
-
-	mutex_lock(&lock);
-	list_add_tail(&cma_dev->list, &dev_list);
-	list_for_each_entry(id_priv, &listen_any_list, list)
-		cma_listen_on_dev(id_priv, cma_dev);
-	mutex_unlock(&lock);
-
-	for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
-		char buf[64];
-
-		snprintf(buf, sizeof(buf), "default_roce_mode_port%d", i);
-
-		(void) SYSCTL_ADD_PROC(&cma_dev->sysctl_ctx,
-		    SYSCTL_CHILDREN(device->ports_parent->parent->oidp),
-		    OID_AUTO, buf, CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
-		    cma_dev, i, &sysctl_cma_default_roce_mode, "A",
-		    "Default RoCE mode. Valid values: IB/RoCE v1 and RoCE v2");
-	}
-}
-
-static int cma_remove_id_dev(struct rdma_id_private *id_priv)
-{
-	struct rdma_cm_event event;
-	enum rdma_cm_state state;
-	int ret = 0;
-
-	/* Record that we want to remove the device */
-	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, RDMA_CM_DEVICE_REMOVAL))
-		goto out;
-
-	memset(&event, 0, sizeof event);
-	event.event = RDMA_CM_EVENT_DEVICE_REMOVAL;
-	ret = id_priv->id.event_handler(&id_priv->id, &event);
-out:
-	mutex_unlock(&id_priv->handler_mutex);
-	return ret;
-}
-
-static void cma_process_remove(struct cma_device *cma_dev)
-{
-	struct rdma_id_private *id_priv;
-	int ret;
-
-	mutex_lock(&lock);
-	while (!list_empty(&cma_dev->id_list)) {
-		id_priv = list_entry(cma_dev->id_list.next,
-				     struct rdma_id_private, list);
-
-		list_del(&id_priv->listen_list);
-		list_del_init(&id_priv->list);
-		atomic_inc(&id_priv->refcount);
-		mutex_unlock(&lock);
-
-		ret = id_priv->internal_id ? 1 : cma_remove_id_dev(id_priv);
-		cma_deref_id(id_priv);
-		if (ret)
-			rdma_destroy_id(&id_priv->id);
-
-		mutex_lock(&lock);
-	}
-	mutex_unlock(&lock);
-
-	cma_deref_dev(cma_dev);
-	wait_for_completion(&cma_dev->comp);
-}
-
-static void cma_remove_one(struct ib_device *device, void *client_data)
-{
-	struct cma_device *cma_dev = client_data;
-
-	if (!cma_dev)
-		return;
-
-	mutex_lock(&lock);
-	list_del(&cma_dev->list);
-	mutex_unlock(&lock);
-
-	cma_process_remove(cma_dev);
-	sysctl_ctx_free(&cma_dev->sysctl_ctx);
-	kfree(cma_dev->default_gid_type);
-	kfree(cma_dev);
-}
-
-static void cma_init_vnet(void *arg)
-{
-	struct cma_pernet *pernet = &VNET(cma_pernet);
-
-	idr_init(&pernet->tcp_ps);
-	idr_init(&pernet->udp_ps);
-	idr_init(&pernet->ipoib_ps);
-	idr_init(&pernet->ib_ps);
-}
-VNET_SYSINIT(cma_init_vnet, SI_SUB_OFED_MODINIT - 1, SI_ORDER_FIRST, cma_init_vnet, NULL);
-
-static void cma_destroy_vnet(void *arg)
-{
-	struct cma_pernet *pernet = &VNET(cma_pernet);
-
-	idr_destroy(&pernet->tcp_ps);
-	idr_destroy(&pernet->udp_ps);
-	idr_destroy(&pernet->ipoib_ps);
-	idr_destroy(&pernet->ib_ps);
-}
-VNET_SYSUNINIT(cma_destroy_vnet, SI_SUB_OFED_MODINIT - 1, SI_ORDER_SECOND, cma_destroy_vnet, NULL);
-
-static int __init cma_init(void)
-{
-	int ret;
-
-	cma_wq = alloc_ordered_workqueue("rdma_cm", WQ_MEM_RECLAIM);
-	if (!cma_wq)
-		return -ENOMEM;
-
-	ib_sa_register_client(&sa_client);
-	rdma_addr_register_client(&addr_client);
-
-	ret = ib_register_client(&cma_client);
-	if (ret)
-		goto err;
-
-	cma_configfs_init();
-
-	return 0;
-
-err:
-	rdma_addr_unregister_client(&addr_client);
-	ib_sa_unregister_client(&sa_client);
-	destroy_workqueue(cma_wq);
-	return ret;
-}
-
-static void __exit cma_cleanup(void)
-{
-	cma_configfs_exit();
-	ib_unregister_client(&cma_client);
-	rdma_addr_unregister_client(&addr_client);
-	ib_sa_unregister_client(&sa_client);
-	destroy_workqueue(cma_wq);
-}
-
-module_init(cma_init);
-module_exit(cma_cleanup);