1 files changed, 47 insertions, 1 deletions

diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index cdb63f3f4de7..363938435476 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -114,7 +114,7 @@ static struct hlist_head *get_mapinfo_hash_bucket(struct sockaddr_storage *,
 
 int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
 			struct sockaddr_storage *mapped_sockaddr,
-			u8 nl_client)
+			u8 nl_client, u32 map_flags)
 {
 	struct hlist_head *hash_bucket_head = NULL;
 	struct iwpm_mapping_info *map_info;
@@ -132,6 +132,7 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
 	memcpy(&map_info->mapped_sockaddr, mapped_sockaddr,
 	       sizeof(struct sockaddr_storage));
 	map_info->nl_client = nl_client;
+	map_info->map_flags = map_flags;
 
 	spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
 	if (iwpm_hash_bucket) {
@@ -686,6 +687,14 @@ int iwpm_send_mapinfo(u8 nl_client, int iwpm_pid)
 			if (ret)
 				goto send_mapping_info_unlock;
 
+			if (iwpm_ulib_version > IWPM_UABI_VERSION_MIN) {
+				ret = ibnl_put_attr(skb, nlh, sizeof(u32),
+						&map_info->map_flags,
+						IWPM_NLA_MAPINFO_FLAGS);
+				if (ret)
+					goto send_mapping_info_unlock;
+			}
+
 			nlmsg_end(skb, nlh);
 
 			iwpm_print_sockaddr(&map_info->local_sockaddr,
@@ -754,3 +763,40 @@ int iwpm_mapinfo_available(void)
 	spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
 	return full_bucket;
 }
+
+int iwpm_send_hello(u8 nl_client, int iwpm_pid, u16 abi_version)
+{
+	struct sk_buff *skb = NULL;
+	struct nlmsghdr *nlh;
+	u32 msg_seq;
+	const char *err_str = "";
+	int ret = -EINVAL;
+
+	skb = iwpm_create_nlmsg(RDMA_NL_IWPM_HELLO, &nlh, nl_client);
+	if (!skb) {
+		err_str = "Unable to create a nlmsg";
+		goto hello_num_error;
+	}
+	nlh->nlmsg_seq = iwpm_get_nlmsg_seq();
+	msg_seq = 0;
+	err_str = "Unable to put attribute of abi_version into nlmsg";
+	ret = ibnl_put_attr(skb, nlh, sizeof(u16), &abi_version,
+			    IWPM_NLA_HELLO_ABI_VERSION);
+	if (ret)
+		goto hello_num_error;
+	nlmsg_end(skb, nlh);
+
+	ret = rdma_nl_unicast(skb, iwpm_pid);
+	if (ret) {
+		skb = NULL;
+		err_str = "Unable to send a nlmsg";
+		goto hello_num_error;
+	}
+	pr_debug("%s: Sent hello abi_version = %u\n", __func__, abi_version);
+	return 0;
+hello_num_error:
+	pr_info("%s: %s\n", __func__, err_str);
+	if (skb)
+		dev_kfree_skb(skb);
+	return ret;
+}