Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband upate from Roland Dreier:
 "First batch of InfiniBand/RDMA changes for the 3.8 merge window:
   - A good chunk of Bart Van Assche's SRP fixes
   - UAPI disintegration from David Howells
   - mlx4 support for "64-byte CQE" hardware feature from Or Gerlitz
   - Other miscellaneous fixes"

Fix up trivial conflict in mellanox/mlx4 driver.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (33 commits)
  RDMA/nes: Fix for crash when registering zero length MR for CQ
  RDMA/nes: Fix for terminate timer crash
  RDMA/nes: Fix for BUG_ON due to adding already-pending timer
  IB/srp: Allow SRP disconnect through sysfs
  srp_transport: Document sysfs attributes
  srp_transport: Simplify attribute initialization code
  srp_transport: Fix attribute registration
  IB/srp: Document sysfs attributes
  IB/srp: send disconnect request without waiting for CM timewait exit
  IB/srp: destroy and recreate QP and CQs when reconnecting
  IB/srp: Eliminate state SRP_TARGET_DEAD
  IB/srp: Introduce the helper function srp_remove_target()
  IB/srp: Suppress superfluous error messages
  IB/srp: Process all error completions
  IB/srp: Introduce srp_handle_qp_err()
  IB/srp: Simplify SCSI error handling
  IB/srp: Keep processing commands during host removal
  IB/srp: Eliminate state SRP_TARGET_CONNECTING
  IB/srp: Increase block layer timeout
  RDMA/cm: Change return value from find_gid_port()
  ...

7 files changed, 1630 insertions, 0 deletions

diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild
index aafaa5aa54d..687ae332200 100644
--- a/include/uapi/rdma/Kbuild
+++ b/include/uapi/rdma/Kbuild
@@ -1 +1,7 @@
 # UAPI Header export list
+header-y += ib_user_cm.h
+header-y += ib_user_mad.h
+header-y += ib_user_sa.h
+header-y += ib_user_verbs.h
+header-y += rdma_netlink.h
+header-y += rdma_user_cm.h
diff --git a/include/uapi/rdma/ib_user_cm.h b/include/uapi/rdma/ib_user_cm.h
new file mode 100644
index 00000000000..f79014aa28f
--- /dev/null
+++ b/include/uapi/rdma/ib_user_cm.h
@@ -0,0 +1,325 @@
+/*
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 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.
+ */
+
+#ifndef IB_USER_CM_H
+#define IB_USER_CM_H
+
+#include <linux/types.h>
+#include <rdma/ib_user_sa.h>
+
+#define IB_USER_CM_ABI_VERSION 5
+
+enum {
+	IB_USER_CM_CMD_CREATE_ID,
+	IB_USER_CM_CMD_DESTROY_ID,
+	IB_USER_CM_CMD_ATTR_ID,
+
+	IB_USER_CM_CMD_LISTEN,
+	IB_USER_CM_CMD_NOTIFY,
+
+	IB_USER_CM_CMD_SEND_REQ,
+	IB_USER_CM_CMD_SEND_REP,
+	IB_USER_CM_CMD_SEND_RTU,
+	IB_USER_CM_CMD_SEND_DREQ,
+	IB_USER_CM_CMD_SEND_DREP,
+	IB_USER_CM_CMD_SEND_REJ,
+	IB_USER_CM_CMD_SEND_MRA,
+	IB_USER_CM_CMD_SEND_LAP,
+	IB_USER_CM_CMD_SEND_APR,
+	IB_USER_CM_CMD_SEND_SIDR_REQ,
+	IB_USER_CM_CMD_SEND_SIDR_REP,
+
+	IB_USER_CM_CMD_EVENT,
+	IB_USER_CM_CMD_INIT_QP_ATTR,
+};
+/*
+ * command ABI structures.
+ */
+struct ib_ucm_cmd_hdr {
+	__u32 cmd;
+	__u16 in;
+	__u16 out;
+};
+
+struct ib_ucm_create_id {
+	__u64 uid;
+	__u64 response;
+};
+
+struct ib_ucm_create_id_resp {
+	__u32 id;
+};
+
+struct ib_ucm_destroy_id {
+	__u64 response;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct ib_ucm_destroy_id_resp {
+	__u32 events_reported;
+};
+
+struct ib_ucm_attr_id {
+	__u64 response;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct ib_ucm_attr_id_resp {
+	__be64 service_id;
+	__be64 service_mask;
+	__be32 local_id;
+	__be32 remote_id;
+};
+
+struct ib_ucm_init_qp_attr {
+	__u64 response;
+	__u32 id;
+	__u32 qp_state;
+};
+
+struct ib_ucm_listen {
+	__be64 service_id;
+	__be64 service_mask;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct ib_ucm_notify {
+	__u32 id;
+	__u32 event;
+};
+
+struct ib_ucm_private_data {
+	__u64 data;
+	__u32 id;
+	__u8  len;
+	__u8  reserved[3];
+};
+
+struct ib_ucm_req {
+	__u32 id;
+	__u32 qpn;
+	__u32 qp_type;
+	__u32 psn;
+	__be64 sid;
+	__u64 data;
+	__u64 primary_path;
+	__u64 alternate_path;
+	__u8  len;
+	__u8  peer_to_peer;
+	__u8  responder_resources;
+	__u8  initiator_depth;
+	__u8  remote_cm_response_timeout;
+	__u8  flow_control;
+	__u8  local_cm_response_timeout;
+	__u8  retry_count;
+	__u8  rnr_retry_count;
+	__u8  max_cm_retries;
+	__u8  srq;
+	__u8  reserved[5];
+};
+
+struct ib_ucm_rep {
+	__u64 uid;
+	__u64 data;
+	__u32 id;
+	__u32 qpn;
+	__u32 psn;
+	__u8  len;
+	__u8  responder_resources;
+	__u8  initiator_depth;
+	__u8  target_ack_delay;
+	__u8  failover_accepted;
+	__u8  flow_control;
+	__u8  rnr_retry_count;
+	__u8  srq;
+	__u8  reserved[4];
+};
+
+struct ib_ucm_info {
+	__u32 id;
+	__u32 status;
+	__u64 info;
+	__u64 data;
+	__u8  info_len;
+	__u8  data_len;
+	__u8  reserved[6];
+};
+
+struct ib_ucm_mra {
+	__u64 data;
+	__u32 id;
+	__u8  len;
+	__u8  timeout;
+	__u8  reserved[2];
+};
+
+struct ib_ucm_lap {
+	__u64 path;
+	__u64 data;
+	__u32 id;
+	__u8  len;
+	__u8  reserved[3];
+};
+
+struct ib_ucm_sidr_req {
+	__u32 id;
+	__u32 timeout;
+	__be64 sid;
+	__u64 data;
+	__u64 path;
+	__u16 reserved_pkey;
+	__u8  len;
+	__u8  max_cm_retries;
+	__u8  reserved[4];
+};
+
+struct ib_ucm_sidr_rep {
+	__u32 id;
+	__u32 qpn;
+	__u32 qkey;
+	__u32 status;
+	__u64 info;
+	__u64 data;
+	__u8  info_len;
+	__u8  data_len;
+	__u8  reserved[6];
+};
+/*
+ * event notification ABI structures.
+ */
+struct ib_ucm_event_get {
+	__u64 response;
+	__u64 data;
+	__u64 info;
+	__u8  data_len;
+	__u8  info_len;
+	__u8  reserved[6];
+};
+
+struct ib_ucm_req_event_resp {
+	struct ib_user_path_rec primary_path;
+	struct ib_user_path_rec alternate_path;
+	__be64                 remote_ca_guid;
+	__u32                  remote_qkey;
+	__u32                  remote_qpn;
+	__u32                  qp_type;
+	__u32                  starting_psn;
+	__u8  responder_resources;
+	__u8  initiator_depth;
+	__u8  local_cm_response_timeout;
+	__u8  flow_control;
+	__u8  remote_cm_response_timeout;
+	__u8  retry_count;
+	__u8  rnr_retry_count;
+	__u8  srq;
+	__u8  port;
+	__u8  reserved[7];
+};
+
+struct ib_ucm_rep_event_resp {
+	__be64 remote_ca_guid;
+	__u32 remote_qkey;
+	__u32 remote_qpn;
+	__u32 starting_psn;
+	__u8  responder_resources;
+	__u8  initiator_depth;
+	__u8  target_ack_delay;
+	__u8  failover_accepted;
+	__u8  flow_control;
+	__u8  rnr_retry_count;
+	__u8  srq;
+	__u8  reserved[5];
+};
+
+struct ib_ucm_rej_event_resp {
+	__u32 reason;
+	/* ari in ib_ucm_event_get info field. */
+};
+
+struct ib_ucm_mra_event_resp {
+	__u8  timeout;
+	__u8  reserved[3];
+};
+
+struct ib_ucm_lap_event_resp {
+	struct ib_user_path_rec path;
+};
+
+struct ib_ucm_apr_event_resp {
+	__u32 status;
+	/* apr info in ib_ucm_event_get info field. */
+};
+
+struct ib_ucm_sidr_req_event_resp {
+	__u16 pkey;
+	__u8  port;
+	__u8  reserved;
+};
+
+struct ib_ucm_sidr_rep_event_resp {
+	__u32 status;
+	__u32 qkey;
+	__u32 qpn;
+	/* info in ib_ucm_event_get info field. */
+};
+
+#define IB_UCM_PRES_DATA      0x01
+#define IB_UCM_PRES_INFO      0x02
+#define IB_UCM_PRES_PRIMARY   0x04
+#define IB_UCM_PRES_ALTERNATE 0x08
+
+struct ib_ucm_event_resp {
+	__u64 uid;
+	__u32 id;
+	__u32 event;
+	__u32 present;
+	__u32 reserved;
+	union {
+		struct ib_ucm_req_event_resp req_resp;
+		struct ib_ucm_rep_event_resp rep_resp;
+		struct ib_ucm_rej_event_resp rej_resp;
+		struct ib_ucm_mra_event_resp mra_resp;
+		struct ib_ucm_lap_event_resp lap_resp;
+		struct ib_ucm_apr_event_resp apr_resp;
+
+		struct ib_ucm_sidr_req_event_resp sidr_req_resp;
+		struct ib_ucm_sidr_rep_event_resp sidr_rep_resp;
+
+		__u32                             send_status;
+	} u;
+};
+
+#endif /* IB_USER_CM_H */
diff --git a/include/uapi/rdma/ib_user_mad.h b/include/uapi/rdma/ib_user_mad.h
new file mode 100644
index 00000000000..d6fce1cbdb9
--- /dev/null
+++ b/include/uapi/rdma/ib_user_mad.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2004 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Voltaire, Inc. 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.
+ */
+
+#ifndef IB_USER_MAD_H
+#define IB_USER_MAD_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define IB_USER_MAD_ABI_VERSION	5
+
+/*
+ * Make sure that all structs defined in this file remain laid out so
+ * that they pack the same way on 32-bit and 64-bit architectures (to
+ * avoid incompatibility between 32-bit userspace and 64-bit kernels).
+ */
+
+/**
+ * ib_user_mad_hdr_old - Old version of MAD packet header without pkey_index
+ * @id - ID of agent MAD received with/to be sent with
+ * @status - 0 on successful receive, ETIMEDOUT if no response
+ *   received (transaction ID in data[] will be set to TID of original
+ *   request) (ignored on send)
+ * @timeout_ms - Milliseconds to wait for response (unset on receive)
+ * @retries - Number of automatic retries to attempt
+ * @qpn - Remote QP number received from/to be sent to
+ * @qkey - Remote Q_Key to be sent with (unset on receive)
+ * @lid - Remote lid received from/to be sent to
+ * @sl - Service level received with/to be sent with
+ * @path_bits - Local path bits received with/to be sent with
+ * @grh_present - If set, GRH was received/should be sent
+ * @gid_index - Local GID index to send with (unset on receive)
+ * @hop_limit - Hop limit in GRH
+ * @traffic_class - Traffic class in GRH
+ * @gid - Remote GID in GRH
+ * @flow_label - Flow label in GRH
+ */
+struct ib_user_mad_hdr_old {
+	__u32	id;
+	__u32	status;
+	__u32	timeout_ms;
+	__u32	retries;
+	__u32	length;
+	__be32	qpn;
+	__be32  qkey;
+	__be16	lid;
+	__u8	sl;
+	__u8	path_bits;
+	__u8	grh_present;
+	__u8	gid_index;
+	__u8	hop_limit;
+	__u8	traffic_class;
+	__u8	gid[16];
+	__be32	flow_label;
+};
+
+/**
+ * ib_user_mad_hdr - MAD packet header
+ *   This layout allows specifying/receiving the P_Key index.  To use
+ *   this capability, an application must call the
+ *   IB_USER_MAD_ENABLE_PKEY ioctl on the user MAD file handle before
+ *   any other actions with the file handle.
+ * @id - ID of agent MAD received with/to be sent with
+ * @status - 0 on successful receive, ETIMEDOUT if no response
+ *   received (transaction ID in data[] will be set to TID of original
+ *   request) (ignored on send)
+ * @timeout_ms - Milliseconds to wait for response (unset on receive)
+ * @retries - Number of automatic retries to attempt
+ * @qpn - Remote QP number received from/to be sent to
+ * @qkey - Remote Q_Key to be sent with (unset on receive)
+ * @lid - Remote lid received from/to be sent to
+ * @sl - Service level received with/to be sent with
+ * @path_bits - Local path bits received with/to be sent with
+ * @grh_present - If set, GRH was received/should be sent
+ * @gid_index - Local GID index to send with (unset on receive)
+ * @hop_limit - Hop limit in GRH
+ * @traffic_class - Traffic class in GRH
+ * @gid - Remote GID in GRH
+ * @flow_label - Flow label in GRH
+ * @pkey_index - P_Key index
+ */
+struct ib_user_mad_hdr {
+	__u32	id;
+	__u32	status;
+	__u32	timeout_ms;
+	__u32	retries;
+	__u32	length;
+	__be32	qpn;
+	__be32  qkey;
+	__be16	lid;
+	__u8	sl;
+	__u8	path_bits;
+	__u8	grh_present;
+	__u8	gid_index;
+	__u8	hop_limit;
+	__u8	traffic_class;
+	__u8	gid[16];
+	__be32	flow_label;
+	__u16	pkey_index;
+	__u8	reserved[6];
+};
+
+/**
+ * ib_user_mad - MAD packet
+ * @hdr - MAD packet header
+ * @data - Contents of MAD
+ *
+ */
+struct ib_user_mad {
+	struct ib_user_mad_hdr hdr;
+	__u64	data[0];
+};
+
+/*
+ * Earlier versions of this interface definition declared the
+ * method_mask[] member as an array of __u32 but treated it as a
+ * bitmap made up of longs in the kernel.  This ambiguity meant that
+ * 32-bit big-endian applications that can run on both 32-bit and
+ * 64-bit kernels had no consistent ABI to rely on, and 64-bit
+ * big-endian applications that treated method_mask as being made up
+ * of 32-bit words would have their bitmap misinterpreted.
+ *
+ * To clear up this confusion, we change the declaration of
+ * method_mask[] to use unsigned long and handle the conversion from
+ * 32-bit userspace to 64-bit kernel for big-endian systems in the
+ * compat_ioctl method.  Unfortunately, to keep the structure layout
+ * the same, we need the method_mask[] array to be aligned only to 4
+ * bytes even when long is 64 bits, which forces us into this ugly
+ * typedef.
+ */
+typedef unsigned long __attribute__((aligned(4))) packed_ulong;
+#define IB_USER_MAD_LONGS_PER_METHOD_MASK (128 / (8 * sizeof (long)))
+
+/**
+ * ib_user_mad_reg_req - MAD registration request
+ * @id - Set by the kernel; used to identify agent in future requests.
+ * @qpn - Queue pair number; must be 0 or 1.
+ * @method_mask - The caller will receive unsolicited MADs for any method
+ *   where @method_mask = 1.
+ * @mgmt_class - Indicates which management class of MADs should be receive
+ *   by the caller.  This field is only required if the user wishes to
+ *   receive unsolicited MADs, otherwise it should be 0.
+ * @mgmt_class_version - Indicates which version of MADs for the given
+ *   management class to receive.
+ * @oui: Indicates IEEE OUI when mgmt_class is a vendor class
+ *   in the range from 0x30 to 0x4f. Otherwise not used.
+ * @rmpp_version: If set, indicates the RMPP version used.
+ *
+ */
+struct ib_user_mad_reg_req {
+	__u32	id;
+	packed_ulong method_mask[IB_USER_MAD_LONGS_PER_METHOD_MASK];
+	__u8	qpn;
+	__u8	mgmt_class;
+	__u8	mgmt_class_version;
+	__u8    oui[3];
+	__u8	rmpp_version;
+};
+
+#define IB_IOCTL_MAGIC		0x1b
+
+#define IB_USER_MAD_REGISTER_AGENT	_IOWR(IB_IOCTL_MAGIC, 1, \
+					      struct ib_user_mad_reg_req)
+
+#define IB_USER_MAD_UNREGISTER_AGENT	_IOW(IB_IOCTL_MAGIC, 2, __u32)
+
+#define IB_USER_MAD_ENABLE_PKEY		_IO(IB_IOCTL_MAGIC, 3)
+
+#endif /* IB_USER_MAD_H */
diff --git a/include/uapi/rdma/ib_user_sa.h b/include/uapi/rdma/ib_user_sa.h
new file mode 100644
index 00000000000..cfc7c9ba781
--- /dev/null
+++ b/include/uapi/rdma/ib_user_sa.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2005 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.
+ */
+
+#ifndef IB_USER_SA_H
+#define IB_USER_SA_H
+
+#include <linux/types.h>
+
+enum {
+	IB_PATH_GMP		= 1,
+	IB_PATH_PRIMARY		= (1<<1),
+	IB_PATH_ALTERNATE	= (1<<2),
+	IB_PATH_OUTBOUND	= (1<<3),
+	IB_PATH_INBOUND		= (1<<4),
+	IB_PATH_INBOUND_REVERSE = (1<<5),
+	IB_PATH_BIDIRECTIONAL	= IB_PATH_OUTBOUND | IB_PATH_INBOUND_REVERSE
+};
+
+struct ib_path_rec_data {
+	__u32	flags;
+	__u32	reserved;
+	__u32	path_rec[16];
+};
+
+struct ib_user_path_rec {
+	__u8	dgid[16];
+	__u8	sgid[16];
+	__be16	dlid;
+	__be16	slid;
+	__u32	raw_traffic;
+	__be32	flow_label;
+	__u32	reversible;
+	__u32	mtu;
+	__be16	pkey;
+	__u8	hop_limit;
+	__u8	traffic_class;
+	__u8	numb_path;
+	__u8	sl;
+	__u8	mtu_selector;
+	__u8	rate_selector;
+	__u8	rate;
+	__u8	packet_life_time_selector;
+	__u8	packet_life_time;
+	__u8	preference;
+};
+
+#endif /* IB_USER_SA_H */
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
new file mode 100644
index 00000000000..81aba3a73aa
--- /dev/null
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -0,0 +1,734 @@
+/*
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 PathScale, Inc.  All rights reserved.
+ * Copyright (c) 2006 Mellanox Technologies.  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.
+ */
+
+#ifndef IB_USER_VERBS_H
+#define IB_USER_VERBS_H
+
+#include <linux/types.h>
+
+/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define IB_USER_VERBS_ABI_VERSION	6
+
+enum {
+	IB_USER_VERBS_CMD_GET_CONTEXT,
+	IB_USER_VERBS_CMD_QUERY_DEVICE,
+	IB_USER_VERBS_CMD_QUERY_PORT,
+	IB_USER_VERBS_CMD_ALLOC_PD,
+	IB_USER_VERBS_CMD_DEALLOC_PD,
+	IB_USER_VERBS_CMD_CREATE_AH,
+	IB_USER_VERBS_CMD_MODIFY_AH,
+	IB_USER_VERBS_CMD_QUERY_AH,
+	IB_USER_VERBS_CMD_DESTROY_AH,
+	IB_USER_VERBS_CMD_REG_MR,
+	IB_USER_VERBS_CMD_REG_SMR,
+	IB_USER_VERBS_CMD_REREG_MR,
+	IB_USER_VERBS_CMD_QUERY_MR,
+	IB_USER_VERBS_CMD_DEREG_MR,
+	IB_USER_VERBS_CMD_ALLOC_MW,
+	IB_USER_VERBS_CMD_BIND_MW,
+	IB_USER_VERBS_CMD_DEALLOC_MW,
+	IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
+	IB_USER_VERBS_CMD_CREATE_CQ,
+	IB_USER_VERBS_CMD_RESIZE_CQ,
+	IB_USER_VERBS_CMD_DESTROY_CQ,
+	IB_USER_VERBS_CMD_POLL_CQ,
+	IB_USER_VERBS_CMD_PEEK_CQ,
+	IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
+	IB_USER_VERBS_CMD_CREATE_QP,
+	IB_USER_VERBS_CMD_QUERY_QP,
+	IB_USER_VERBS_CMD_MODIFY_QP,
+	IB_USER_VERBS_CMD_DESTROY_QP,
+	IB_USER_VERBS_CMD_POST_SEND,
+	IB_USER_VERBS_CMD_POST_RECV,
+	IB_USER_VERBS_CMD_ATTACH_MCAST,
+	IB_USER_VERBS_CMD_DETACH_MCAST,
+	IB_USER_VERBS_CMD_CREATE_SRQ,
+	IB_USER_VERBS_CMD_MODIFY_SRQ,
+	IB_USER_VERBS_CMD_QUERY_SRQ,
+	IB_USER_VERBS_CMD_DESTROY_SRQ,
+	IB_USER_VERBS_CMD_POST_SRQ_RECV,
+	IB_USER_VERBS_CMD_OPEN_XRCD,
+	IB_USER_VERBS_CMD_CLOSE_XRCD,
+	IB_USER_VERBS_CMD_CREATE_XSRQ,
+	IB_USER_VERBS_CMD_OPEN_QP
+};
+
+/*
+ * Make sure that all structs defined in this file remain laid out so
+ * that they pack the same way on 32-bit and 64-bit architectures (to
+ * avoid incompatibility between 32-bit userspace and 64-bit kernels).
+ * Specifically:
+ *  - Do not use pointer types -- pass pointers in __u64 instead.
+ *  - Make sure that any structure larger than 4 bytes is padded to a
+ *    multiple of 8 bytes.  Otherwise the structure size will be
+ *    different between 32-bit and 64-bit architectures.
+ */
+
+struct ib_uverbs_async_event_desc {
+	__u64 element;
+	__u32 event_type;	/* enum ib_event_type */
+	__u32 reserved;
+};
+
+struct ib_uverbs_comp_event_desc {
+	__u64 cq_handle;
+};
+
+/*
+ * All commands from userspace should start with a __u32 command field
+ * followed by __u16 in_words and out_words fields (which give the
+ * length of the command block and response buffer if any in 32-bit
+ * words).  The kernel driver will read these fields first and read
+ * the rest of the command struct based on these value.
+ */
+
+struct ib_uverbs_cmd_hdr {
+	__u32 command;
+	__u16 in_words;
+	__u16 out_words;
+};
+
+struct ib_uverbs_get_context {
+	__u64 response;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_get_context_resp {
+	__u32 async_fd;
+	__u32 num_comp_vectors;
+};
+
+struct ib_uverbs_query_device {
+	__u64 response;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_query_device_resp {
+	__u64 fw_ver;
+	__be64 node_guid;
+	__be64 sys_image_guid;
+	__u64 max_mr_size;
+	__u64 page_size_cap;
+	__u32 vendor_id;
+	__u32 vendor_part_id;
+	__u32 hw_ver;
+	__u32 max_qp;
+	__u32 max_qp_wr;
+	__u32 device_cap_flags;
+	__u32 max_sge;
+	__u32 max_sge_rd;
+	__u32 max_cq;
+	__u32 max_cqe;
+	__u32 max_mr;
+	__u32 max_pd;
+	__u32 max_qp_rd_atom;
+	__u32 max_ee_rd_atom;
+	__u32 max_res_rd_atom;
+	__u32 max_qp_init_rd_atom;
+	__u32 max_ee_init_rd_atom;
+	__u32 atomic_cap;
+	__u32 max_ee;
+	__u32 max_rdd;
+	__u32 max_mw;
+	__u32 max_raw_ipv6_qp;
+	__u32 max_raw_ethy_qp;
+	__u32 max_mcast_grp;
+	__u32 max_mcast_qp_attach;
+	__u32 max_total_mcast_qp_attach;
+	__u32 max_ah;
+	__u32 max_fmr;
+	__u32 max_map_per_fmr;
+	__u32 max_srq;
+	__u32 max_srq_wr;
+	__u32 max_srq_sge;
+	__u16 max_pkeys;
+	__u8  local_ca_ack_delay;
+	__u8  phys_port_cnt;
+	__u8  reserved[4];
+};
+
+struct ib_uverbs_query_port {
+	__u64 response;
+	__u8  port_num;
+	__u8  reserved[7];
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_query_port_resp {
+	__u32 port_cap_flags;
+	__u32 max_msg_sz;
+	__u32 bad_pkey_cntr;
+	__u32 qkey_viol_cntr;
+	__u32 gid_tbl_len;
+	__u16 pkey_tbl_len;
+	__u16 lid;
+	__u16 sm_lid;
+	__u8  state;
+	__u8  max_mtu;
+	__u8  active_mtu;
+	__u8  lmc;
+	__u8  max_vl_num;
+	__u8  sm_sl;
+	__u8  subnet_timeout;
+	__u8  init_type_reply;
+	__u8  active_width;
+	__u8  active_speed;
+	__u8  phys_state;
+	__u8  link_layer;
+	__u8  reserved[2];
+};
+
+struct ib_uverbs_alloc_pd {
+	__u64 response;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_alloc_pd_resp {
+	__u32 pd_handle;
+};
+
+struct ib_uverbs_dealloc_pd {
+	__u32 pd_handle;
+};
+
+struct ib_uverbs_open_xrcd {
+	__u64 response;
+	__u32 fd;
+	__u32 oflags;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_open_xrcd_resp {
+	__u32 xrcd_handle;
+};
+
+struct ib_uverbs_close_xrcd {
+	__u32 xrcd_handle;
+};
+
+struct ib_uverbs_reg_mr {
+	__u64 response;
+	__u64 start;
+	__u64 length;
+	__u64 hca_va;
+	__u32 pd_handle;
+	__u32 access_flags;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_reg_mr_resp {
+	__u32 mr_handle;
+	__u32 lkey;
+	__u32 rkey;
+};
+
+struct ib_uverbs_dereg_mr {
+	__u32 mr_handle;
+};
+
+struct ib_uverbs_create_comp_channel {
+	__u64 response;
+};
+
+struct ib_uverbs_create_comp_channel_resp {
+	__u32 fd;
+};
+
+struct ib_uverbs_create_cq {
+	__u64 response;
+	__u64 user_handle;
+	__u32 cqe;
+	__u32 comp_vector;
+	__s32 comp_channel;
+	__u32 reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_create_cq_resp {
+	__u32 cq_handle;
+	__u32 cqe;
+};
+
+struct ib_uverbs_resize_cq {
+	__u64 response;
+	__u32 cq_handle;
+	__u32 cqe;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_resize_cq_resp {
+	__u32 cqe;
+	__u32 reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_poll_cq {
+	__u64 response;
+	__u32 cq_handle;
+	__u32 ne;
+};
+
+struct ib_uverbs_wc {
+	__u64 wr_id;
+	__u32 status;
+	__u32 opcode;
+	__u32 vendor_err;
+	__u32 byte_len;
+	union {
+		__u32 imm_data;
+		__u32 invalidate_rkey;
+	} ex;
+	__u32 qp_num;
+	__u32 src_qp;
+	__u32 wc_flags;
+	__u16 pkey_index;
+	__u16 slid;
+	__u8 sl;
+	__u8 dlid_path_bits;
+	__u8 port_num;
+	__u8 reserved;
+};
+
+struct ib_uverbs_poll_cq_resp {
+	__u32 count;
+	__u32 reserved;
+	struct ib_uverbs_wc wc[0];
+};
+
+struct ib_uverbs_req_notify_cq {
+	__u32 cq_handle;
+	__u32 solicited_only;
+};
+
+struct ib_uverbs_destroy_cq {
+	__u64 response;
+	__u32 cq_handle;
+	__u32 reserved;
+};
+
+struct ib_uverbs_destroy_cq_resp {
+	__u32 comp_events_reported;
+	__u32 async_events_reported;
+};
+
+struct ib_uverbs_global_route {
+	__u8  dgid[16];
+	__u32 flow_label;
+	__u8  sgid_index;
+	__u8  hop_limit;
+	__u8  traffic_class;
+	__u8  reserved;
+};
+
+struct ib_uverbs_ah_attr {
+	struct ib_uverbs_global_route grh;
+	__u16 dlid;
+	__u8  sl;
+	__u8  src_path_bits;
+	__u8  static_rate;
+	__u8  is_global;
+	__u8  port_num;
+	__u8  reserved;
+};
+
+struct ib_uverbs_qp_attr {
+	__u32	qp_attr_mask;
+	__u32	qp_state;
+	__u32	cur_qp_state;
+	__u32	path_mtu;
+	__u32	path_mig_state;
+	__u32	qkey;
+	__u32	rq_psn;
+	__u32	sq_psn;
+	__u32	dest_qp_num;
+	__u32	qp_access_flags;
+
+	struct ib_uverbs_ah_attr ah_attr;
+	struct ib_uverbs_ah_attr alt_ah_attr;
+
+	/* ib_qp_cap */
+	__u32	max_send_wr;
+	__u32	max_recv_wr;
+	__u32	max_send_sge;
+	__u32	max_recv_sge;
+	__u32	max_inline_data;
+
+	__u16	pkey_index;
+	__u16	alt_pkey_index;
+	__u8	en_sqd_async_notify;
+	__u8	sq_draining;
+	__u8	max_rd_atomic;
+	__u8	max_dest_rd_atomic;
+	__u8	min_rnr_timer;
+	__u8	port_num;
+	__u8	timeout;
+	__u8	retry_cnt;
+	__u8	rnr_retry;
+	__u8	alt_port_num;
+	__u8	alt_timeout;
+	__u8	reserved[5];
+};
+
+struct ib_uverbs_create_qp {
+	__u64 response;
+	__u64 user_handle;
+	__u32 pd_handle;
+	__u32 send_cq_handle;
+	__u32 recv_cq_handle;
+	__u32 srq_handle;
+	__u32 max_send_wr;
+	__u32 max_recv_wr;
+	__u32 max_send_sge;
+	__u32 max_recv_sge;
+	__u32 max_inline_data;
+	__u8  sq_sig_all;
+	__u8  qp_type;
+	__u8  is_srq;
+	__u8  reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_open_qp {
+	__u64 response;
+	__u64 user_handle;
+	__u32 pd_handle;
+	__u32 qpn;
+	__u8  qp_type;
+	__u8  reserved[7];
+	__u64 driver_data[0];
+};
+
+/* also used for open response */
+struct ib_uverbs_create_qp_resp {
+	__u32 qp_handle;
+	__u32 qpn;
+	__u32 max_send_wr;
+	__u32 max_recv_wr;
+	__u32 max_send_sge;
+	__u32 max_recv_sge;
+	__u32 max_inline_data;
+	__u32 reserved;
+};
+
+/*
+ * This struct needs to remain a multiple of 8 bytes to keep the
+ * alignment of the modify QP parameters.
+ */
+struct ib_uverbs_qp_dest {
+	__u8  dgid[16];
+	__u32 flow_label;
+	__u16 dlid;
+	__u16 reserved;
+	__u8  sgid_index;
+	__u8  hop_limit;
+	__u8  traffic_class;
+	__u8  sl;
+	__u8  src_path_bits;
+	__u8  static_rate;
+	__u8  is_global;
+	__u8  port_num;
+};
+
+struct ib_uverbs_query_qp {
+	__u64 response;
+	__u32 qp_handle;
+	__u32 attr_mask;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_query_qp_resp {
+	struct ib_uverbs_qp_dest dest;
+	struct ib_uverbs_qp_dest alt_dest;
+	__u32 max_send_wr;
+	__u32 max_recv_wr;
+	__u32 max_send_sge;
+	__u32 max_recv_sge;
+	__u32 max_inline_data;
+	__u32 qkey;
+	__u32 rq_psn;
+	__u32 sq_psn;
+	__u32 dest_qp_num;
+	__u32 qp_access_flags;
+	__u16 pkey_index;
+	__u16 alt_pkey_index;
+	__u8  qp_state;
+	__u8  cur_qp_state;
+	__u8  path_mtu;
+	__u8  path_mig_state;
+	__u8  sq_draining;
+	__u8  max_rd_atomic;
+	__u8  max_dest_rd_atomic;
+	__u8  min_rnr_timer;
+	__u8  port_num;
+	__u8  timeout;
+	__u8  retry_cnt;
+	__u8  rnr_retry;
+	__u8  alt_port_num;
+	__u8  alt_timeout;
+	__u8  sq_sig_all;
+	__u8  reserved[5];
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_modify_qp {
+	struct ib_uverbs_qp_dest dest;
+	struct ib_uverbs_qp_dest alt_dest;
+	__u32 qp_handle;
+	__u32 attr_mask;
+	__u32 qkey;
+	__u32 rq_psn;
+	__u32 sq_psn;
+	__u32 dest_qp_num;
+	__u32 qp_access_flags;
+	__u16 pkey_index;
+	__u16 alt_pkey_index;
+	__u8  qp_state;
+	__u8  cur_qp_state;
+	__u8  path_mtu;
+	__u8  path_mig_state;
+	__u8  en_sqd_async_notify;
+	__u8  max_rd_atomic;
+	__u8  max_dest_rd_atomic;
+	__u8  min_rnr_timer;
+	__u8  port_num;
+	__u8  timeout;
+	__u8  retry_cnt;
+	__u8  rnr_retry;
+	__u8  alt_port_num;
+	__u8  alt_timeout;
+	__u8  reserved[2];
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_modify_qp_resp {
+};
+
+struct ib_uverbs_destroy_qp {
+	__u64 response;
+	__u32 qp_handle;
+	__u32 reserved;
+};
+
+struct ib_uverbs_destroy_qp_resp {
+	__u32 events_reported;
+};
+
+/*
+ * The ib_uverbs_sge structure isn't used anywhere, since we assume
+ * the ib_sge structure is packed the same way on 32-bit and 64-bit
+ * architectures in both kernel and user space.  It's just here to
+ * document the ABI.
+ */
+struct ib_uverbs_sge {
+	__u64 addr;
+	__u32 length;
+	__u32 lkey;
+};
+
+struct ib_uverbs_send_wr {
+	__u64 wr_id;
+	__u32 num_sge;
+	__u32 opcode;
+	__u32 send_flags;
+	union {
+		__u32 imm_data;
+		__u32 invalidate_rkey;
+	} ex;
+	union {
+		struct {
+			__u64 remote_addr;
+			__u32 rkey;
+			__u32 reserved;
+		} rdma;
+		struct {
+			__u64 remote_addr;
+			__u64 compare_add;
+			__u64 swap;
+			__u32 rkey;
+			__u32 reserved;
+		} atomic;
+		struct {
+			__u32 ah;
+			__u32 remote_qpn;
+			__u32 remote_qkey;
+			__u32 reserved;
+		} ud;
+	} wr;
+};
+
+struct ib_uverbs_post_send {
+	__u64 response;
+	__u32 qp_handle;
+	__u32 wr_count;
+	__u32 sge_count;
+	__u32 wqe_size;
+	struct ib_uverbs_send_wr send_wr[0];
+};
+
+struct ib_uverbs_post_send_resp {
+	__u32 bad_wr;
+};
+
+struct ib_uverbs_recv_wr {
+	__u64 wr_id;
+	__u32 num_sge;
+	__u32 reserved;
+};
+
+struct ib_uverbs_post_recv {
+	__u64 response;
+	__u32 qp_handle;
+	__u32 wr_count;
+	__u32 sge_count;
+	__u32 wqe_size;
+	struct ib_uverbs_recv_wr recv_wr[0];
+};
+
+struct ib_uverbs_post_recv_resp {
+	__u32 bad_wr;
+};
+
+struct ib_uverbs_post_srq_recv {
+	__u64 response;
+	__u32 srq_handle;
+	__u32 wr_count;
+	__u32 sge_count;
+	__u32 wqe_size;
+	struct ib_uverbs_recv_wr recv[0];
+};
+
+struct ib_uverbs_post_srq_recv_resp {
+	__u32 bad_wr;
+};
+
+struct ib_uverbs_create_ah {
+	__u64 response;
+	__u64 user_handle;
+	__u32 pd_handle;
+	__u32 reserved;
+	struct ib_uverbs_ah_attr attr;
+};
+
+struct ib_uverbs_create_ah_resp {
+	__u32 ah_handle;
+};
+
+struct ib_uverbs_destroy_ah {
+	__u32 ah_handle;
+};
+
+struct ib_uverbs_attach_mcast {
+	__u8  gid[16];
+	__u32 qp_handle;
+	__u16 mlid;
+	__u16 reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_detach_mcast {
+	__u8  gid[16];
+	__u32 qp_handle;
+	__u16 mlid;
+	__u16 reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_create_srq {
+	__u64 response;
+	__u64 user_handle;
+	__u32 pd_handle;
+	__u32 max_wr;
+	__u32 max_sge;
+	__u32 srq_limit;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_create_xsrq {
+	__u64 response;
+	__u64 user_handle;
+	__u32 srq_type;
+	__u32 pd_handle;
+	__u32 max_wr;
+	__u32 max_sge;
+	__u32 srq_limit;
+	__u32 reserved;
+	__u32 xrcd_handle;
+	__u32 cq_handle;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_create_srq_resp {
+	__u32 srq_handle;
+	__u32 max_wr;
+	__u32 max_sge;
+	__u32 srqn;
+};
+
+struct ib_uverbs_modify_srq {
+	__u32 srq_handle;
+	__u32 attr_mask;
+	__u32 max_wr;
+	__u32 srq_limit;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_query_srq {
+	__u64 response;
+	__u32 srq_handle;
+	__u32 reserved;
+	__u64 driver_data[0];
+};
+
+struct ib_uverbs_query_srq_resp {
+	__u32 max_wr;
+	__u32 max_sge;
+	__u32 srq_limit;
+	__u32 reserved;
+};
+
+struct ib_uverbs_destroy_srq {
+	__u64 response;
+	__u32 srq_handle;
+	__u32 reserved;
+};
+
+struct ib_uverbs_destroy_srq_resp {
+	__u32 events_reported;
+};
+
+#endif /* IB_USER_VERBS_H */
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
new file mode 100644
index 00000000000..8297285b628
--- /dev/null
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -0,0 +1,37 @@
+#ifndef _UAPI_RDMA_NETLINK_H
+#define _UAPI_RDMA_NETLINK_H
+
+#include <linux/types.h>
+
+enum {
+	RDMA_NL_RDMA_CM = 1
+};
+
+#define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10)
+#define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1))
+#define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op)
+
+enum {
+	RDMA_NL_RDMA_CM_ID_STATS = 0,
+	RDMA_NL_RDMA_CM_NUM_OPS
+};
+
+enum {
+	RDMA_NL_RDMA_CM_ATTR_SRC_ADDR = 1,
+	RDMA_NL_RDMA_CM_ATTR_DST_ADDR,
+	RDMA_NL_RDMA_CM_NUM_ATTR,
+};
+
+struct rdma_cm_id_stats {
+	__u32	qp_num;
+	__u32	bound_dev_if;
+	__u32	port_space;
+	__s32	pid;
+	__u8	cm_state;
+	__u8	node_type;
+	__u8	port_num;
+	__u8	qp_type;
+};
+
+
+#endif /* _UAPI_RDMA_NETLINK_H */
diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h
new file mode 100644
index 00000000000..1ee9239ff8c
--- /dev/null
+++ b/include/uapi/rdma/rdma_user_cm.h
@@ -0,0 +1,249 @@
+/*
+ * 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.
+ */
+
+#ifndef RDMA_USER_CM_H
+#define RDMA_USER_CM_H
+
+#include <linux/types.h>
+#include <linux/in6.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_user_sa.h>
+
+#define RDMA_USER_CM_ABI_VERSION	4
+
+#define RDMA_MAX_PRIVATE_DATA		256
+
+enum {
+	RDMA_USER_CM_CMD_CREATE_ID,
+	RDMA_USER_CM_CMD_DESTROY_ID,
+	RDMA_USER_CM_CMD_BIND_ADDR,
+	RDMA_USER_CM_CMD_RESOLVE_ADDR,
+	RDMA_USER_CM_CMD_RESOLVE_ROUTE,
+	RDMA_USER_CM_CMD_QUERY_ROUTE,
+	RDMA_USER_CM_CMD_CONNECT,
+	RDMA_USER_CM_CMD_LISTEN,
+	RDMA_USER_CM_CMD_ACCEPT,
+	RDMA_USER_CM_CMD_REJECT,
+	RDMA_USER_CM_CMD_DISCONNECT,
+	RDMA_USER_CM_CMD_INIT_QP_ATTR,
+	RDMA_USER_CM_CMD_GET_EVENT,
+	RDMA_USER_CM_CMD_GET_OPTION,
+	RDMA_USER_CM_CMD_SET_OPTION,
+	RDMA_USER_CM_CMD_NOTIFY,
+	RDMA_USER_CM_CMD_JOIN_MCAST,
+	RDMA_USER_CM_CMD_LEAVE_MCAST,
+	RDMA_USER_CM_CMD_MIGRATE_ID
+};
+
+/*
+ * command ABI structures.
+ */
+struct rdma_ucm_cmd_hdr {
+	__u32 cmd;
+	__u16 in;
+	__u16 out;
+};
+
+struct rdma_ucm_create_id {
+	__u64 uid;
+	__u64 response;
+	__u16 ps;
+	__u8  qp_type;
+	__u8  reserved[5];
+};
+
+struct rdma_ucm_create_id_resp {
+	__u32 id;
+};
+
+struct rdma_ucm_destroy_id {
+	__u64 response;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct rdma_ucm_destroy_id_resp {
+	__u32 events_reported;
+};
+
+struct rdma_ucm_bind_addr {
+	__u64 response;
+	struct sockaddr_in6 addr;
+	__u32 id;
+};
+
+struct rdma_ucm_resolve_addr {
+	struct sockaddr_in6 src_addr;
+	struct sockaddr_in6 dst_addr;
+	__u32 id;
+	__u32 timeout_ms;
+};
+
+struct rdma_ucm_resolve_route {
+	__u32 id;
+	__u32 timeout_ms;
+};
+
+struct rdma_ucm_query_route {
+	__u64 response;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct rdma_ucm_query_route_resp {
+	__u64 node_guid;
+	struct ib_user_path_rec ib_route[2];
+	struct sockaddr_in6 src_addr;
+	struct sockaddr_in6 dst_addr;
+	__u32 num_paths;
+	__u8 port_num;
+	__u8 reserved[3];
+};
+
+struct rdma_ucm_conn_param {
+	__u32 qp_num;
+	__u32 reserved;
+	__u8  private_data[RDMA_MAX_PRIVATE_DATA];
+	__u8  private_data_len;
+	__u8  srq;
+	__u8  responder_resources;
+	__u8  initiator_depth;
+	__u8  flow_control;
+	__u8  retry_count;
+	__u8  rnr_retry_count;
+	__u8  valid;
+};
+
+struct rdma_ucm_ud_param {
+	__u32 qp_num;
+	__u32 qkey;
+	struct ib_uverbs_ah_attr ah_attr;
+	__u8  private_data[RDMA_MAX_PRIVATE_DATA];
+	__u8  private_data_len;
+	__u8  reserved[7];
+};
+
+struct rdma_ucm_connect {
+	struct rdma_ucm_conn_param conn_param;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct rdma_ucm_listen {
+	__u32 id;
+	__u32 backlog;
+};
+
+struct rdma_ucm_accept {
+	__u64 uid;
+	struct rdma_ucm_conn_param conn_param;
+	__u32 id;
+	__u32 reserved;
+};
+
+struct rdma_ucm_reject {
+	__u32 id;
+	__u8  private_data_len;
+	__u8  reserved[3];
+	__u8  private_data[RDMA_MAX_PRIVATE_DATA];
+};
+
+struct rdma_ucm_disconnect {
+	__u32 id;
+};
+
+struct rdma_ucm_init_qp_attr {
+	__u64 response;
+	__u32 id;
+	__u32 qp_state;
+};
+
+struct rdma_ucm_notify {
+	__u32 id;
+	__u32 event;
+};
+
+struct rdma_ucm_join_mcast {
+	__u64 response;		/* rdma_ucm_create_id_resp */
+	__u64 uid;
+	struct sockaddr_in6 addr;
+	__u32 id;
+};
+
+struct rdma_ucm_get_event {
+	__u64 response;
+};
+
+struct rdma_ucm_event_resp {
+	__u64 uid;
+	__u32 id;
+	__u32 event;
+	__u32 status;
+	union {
+		struct rdma_ucm_conn_param conn;
+		struct rdma_ucm_ud_param   ud;
+	} param;
+};
+
+/* Option levels */
+enum {
+	RDMA_OPTION_ID		= 0,
+	RDMA_OPTION_IB		= 1
+};
+
+/* Option details */
+enum {
+	RDMA_OPTION_ID_TOS	 = 0,
+	RDMA_OPTION_ID_REUSEADDR = 1,
+	RDMA_OPTION_ID_AFONLY	 = 2,
+	RDMA_OPTION_IB_PATH	 = 1
+};
+
+struct rdma_ucm_set_option {
+	__u64 optval;
+	__u32 id;
+	__u32 level;
+	__u32 optname;
+	__u32 optlen;
+};
+
+struct rdma_ucm_migrate_id {
+	__u64 response;
+	__u32 id;
+	__u32 fd;
+};
+
+struct rdma_ucm_migrate_resp {
+	__u32 events_reported;
+};
+
+#endif /* RDMA_USER_CM_H */