LU-9121 lnet: UDSP handling

[fs/lustre-release.git] / lnet / lnet / nidstrings.c

diff --git a/lnet/lnet/nidstrings.c b/lnet/lnet/nidstrings.c
index 26edd33..e392133 100644 (file)
--- a/lnet/lnet/nidstrings.c
+++ b/lnet/lnet/nidstrings.c
@@ -710,6 +710,72 @@ static struct netstrfns libcfs_netstrfns[] = {
 static const size_t libcfs_nnetstrfns = ARRAY_SIZE(libcfs_netstrfns);
 
 static struct netstrfns *
+type2net_info(__u32 net_type)
+{
+       int i;
+
+       for (i = 0; i < libcfs_nnetstrfns; i++) {
+               if (libcfs_netstrfns[i].nf_type == net_type)
+                       return &libcfs_netstrfns[i];
+       }
+
+       return NULL;
+}
+
+int
+cfs_match_net(__u32 net_id, __u32 net_type, struct list_head *net_num_list)
+{
+       __u32 net_num;
+
+       if (!net_num_list)
+               return 0;
+
+       if (net_type != LNET_NETTYP(net_id))
+               return 0;
+
+       net_num = LNET_NETNUM(net_id);
+
+       /* if there is a net number but the list passed in is empty, then
+        * there is no match.
+        */
+       if (!net_num && list_empty(net_num_list))
+               return 1;
+       else if (list_empty(net_num_list))
+               return 0;
+
+       if (!libcfs_num_match(net_num, net_num_list))
+               return 0;
+
+       return 1;
+}
+
+int
+cfs_match_nid_net(lnet_nid_t nid, __u32 net_type,
+                 struct list_head *net_num_list,
+                 struct list_head *addr)
+{
+       __u32 address;
+       struct netstrfns *nf;
+
+       if (!addr || !net_num_list)
+               return 0;
+
+       nf = type2net_info(LNET_NETTYP(LNET_NIDNET(nid)));
+       if (!nf || !net_num_list || !addr)
+               return 0;
+
+       address = LNET_NIDADDR(nid);
+
+       /* if either the address or net number don't match then no match */
+       if (!nf->nf_match_addr(address, addr) ||
+           !cfs_match_net(LNET_NIDNET(nid), net_type, net_num_list))
+               return 0;
+
+       return 1;
+}
+EXPORT_SYMBOL(cfs_match_nid_net);
+
+static struct netstrfns *
 libcfs_lnd2netstrfns(__u32 lnd)
 {
        int     i;