LU-13385 lnet: Calculate IB service-id

[fs/lustre-release.git] / lnet / utils / lnetctl.c

diff --git a/lnet/utils/lnetctl.c b/lnet/utils/lnetctl.c
index e4c9f19..5c23c5c 100644 (file)
--- a/lnet/utils/lnetctl.c
+++ b/lnet/utils/lnetctl.c
@@ -82,6 +82,7 @@ static int jt_global(int argc, char **argv);
 static int jt_peers(int argc, char **argv);
 static int jt_set_ni_value(int argc, char **argv);
 static int jt_set_peer_ni_value(int argc, char **argv);
+static int jt_calc_service_id(int argc, char **argv);
 
 command_t cmd_list[] = {
        {"lnet", jt_lnet, 0, "lnet {configure | unconfigure} [--all]"},
@@ -99,6 +100,7 @@ command_t cmd_list[] = {
        {"peer", jt_peers, 0, "peer {add | del | show | help}"},
        {"ping", jt_ping, 0, "ping nid,[nid,...]"},
        {"discover", jt_discover, 0, "discover nid[,nid,...]"},
+       {"service-id", jt_calc_service_id, 0, "Calculate IB Lustre service ID\n"},
        {"help", Parser_help, 0, "help"},
        {"exit", Parser_quit, 0, "quit"},
        {"quit", Parser_quit, 0, "quit"},
@@ -242,6 +244,24 @@ command_t peer_cmds[] = {
        { 0, 0, 0, NULL }
 };
 
+static int jt_calc_service_id(int argc, char **argv)
+{
+       int rc;
+       __u64 service_id;
+
+       rc = lustre_lnet_calc_service_id(&service_id);
+       if (rc != LUSTRE_CFG_RC_NO_ERR)
+               return rc;
+
+       /*
+        * cYAML currently doesn't support printing hex values.
+        * Therefore just print it locally here
+        */
+       printf("service id:\n    value: 0x%llx\n", service_id);
+
+       return rc;
+}
+
 static inline void print_help(const command_t cmds[], const char *cmd_type,
                              const char *pc_name)
 {