1 files changed, 199 insertions, 0 deletions
diff --git a/include/rdma/iw_portmap.h b/include/rdma/iw_portmap.h
new file mode 100644
index 000000000000..928b2775e992
--- /dev/null
+++ b/include/rdma/iw_portmap.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2014 Intel Corporation. All rights reserved.
+ * Copyright (c) 2014 Chelsio, 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 _IW_PORTMAP_H
+#define _IW_PORTMAP_H
+
+#define IWPM_ULIBNAME_SIZE	32
+#define IWPM_DEVNAME_SIZE	32
+#define IWPM_IFNAME_SIZE	16
+#define IWPM_IPADDR_SIZE	16
+
+enum {
+	IWPM_INVALID_NLMSG_ERR = 10,
+	IWPM_CREATE_MAPPING_ERR,
+	IWPM_DUPLICATE_MAPPING_ERR,
+	IWPM_UNKNOWN_MAPPING_ERR,
+	IWPM_CLIENT_DEV_INFO_ERR,
+	IWPM_USER_LIB_INFO_ERR,
+	IWPM_REMOTE_QUERY_REJECT
+};
+
+struct iwpm_dev_data {
+	char dev_name[IWPM_DEVNAME_SIZE];
+	char if_name[IWPM_IFNAME_SIZE];
+};
+
+struct iwpm_sa_data {
+	struct sockaddr_storage loc_addr;
+	struct sockaddr_storage mapped_loc_addr;
+	struct sockaddr_storage rem_addr;
+	struct sockaddr_storage mapped_rem_addr;
+};
+
+/**
+ * iwpm_init - Allocate resources for the iwarp port mapper
+ *
+ * Should be called when network interface goes up.
+ */
+int iwpm_init(u8);
+
+/**
+ * iwpm_exit - Deallocate resources for the iwarp port mapper
+ *
+ * Should be called when network interface goes down.
+ */
+int iwpm_exit(u8);
+
+/**
+ * iwpm_valid_pid - Check if the userspace iwarp port mapper pid is valid
+ *
+ * Returns true if the pid is greater than zero, otherwise returns false
+ */
+int iwpm_valid_pid(void);
+
+/**
+ * iwpm_register_pid - Send a netlink query to userspace
+ *                     to get the iwarp port mapper pid
+ * @pm_msg: Contains driver info to send to the userspace port mapper
+ * @nl_client: The index of the netlink client
+ */
+int iwpm_register_pid(struct iwpm_dev_data *pm_msg, u8 nl_client);
+
+/**
+ * iwpm_add_mapping - Send a netlink add mapping request to
+ *                    the userspace port mapper
+ * @pm_msg: Contains the local ip/tcp address info to send
+ * @nl_client: The index of the netlink client
+ *
+ * If the request is successful, the pm_msg stores
+ * the port mapper response (mapped address info)
+ */
+int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client);
+
+/**
+ * iwpm_add_and_query_mapping - Send a netlink add and query mapping request
+ *				 to the userspace port mapper
+ * @pm_msg: Contains the local and remote ip/tcp address info to send
+ * @nl_client: The index of the netlink client
+ *
+ * If the request is successful, the pm_msg stores the
+ * port mapper response (mapped local and remote address info)
+ */
+int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client);
+
+/**
+ * iwpm_remove_mapping - Send a netlink remove mapping request
+ *                       to the userspace port mapper
+ *
+ * @local_addr: Local ip/tcp address to remove
+ * @nl_client: The index of the netlink client
+ */
+int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client);
+
+/**
+ * iwpm_register_pid_cb - Process the port mapper response to
+ *                        iwpm_register_pid query
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * If successful, the function receives the userspace port mapper pid
+ * which is used in future communication with the port mapper
+ */
+int iwpm_register_pid_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_add_mapping_cb - Process the port mapper response to
+ *                       iwpm_add_mapping request
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ */
+int iwpm_add_mapping_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_add_and_query_mapping_cb - Process the port mapper response to
+ *                                 iwpm_add_and_query_mapping request
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ */
+int iwpm_add_and_query_mapping_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_mapping_error_cb - Process port mapper notification for error
+ *
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ */
+int iwpm_mapping_error_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_mapping_info_cb - Process a notification that the userspace
+ *                        port mapper daemon is started
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Using the received port mapper pid, send all the local mapping
+ * info records to the userspace port mapper
+ */
+int iwpm_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_ack_mapping_info_cb - Process the port mapper ack for
+ *                            the provided local mapping info records
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ */
+int iwpm_ack_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
+ * iwpm_create_mapinfo - Store local and mapped IPv4/IPv6 address
+ *                       info in a hash table
+ * @local_addr: Local ip/tcp address
+ * @mapped_addr: Mapped local ip/tcp address
+ * @nl_client: The index of the netlink client
+ */
+int iwpm_create_mapinfo(struct sockaddr_storage *local_addr,
+			struct sockaddr_storage *mapped_addr, u8 nl_client);
+
+/**
+ * iwpm_remove_mapinfo - Remove local and mapped IPv4/IPv6 address
+ *                       info from the hash table
+ * @local_addr: Local ip/tcp address
+ * @mapped_addr: Mapped local ip/tcp address
+ *
+ * Returns err code if mapping info is not found in the hash table,
+ * otherwise returns 0
+ */
+int iwpm_remove_mapinfo(struct sockaddr_storage *local_addr,
+			struct sockaddr_storage *mapped_addr);
+
+#endif /* _IW_PORTMAP_H */