LU-15234 lnet: add mechanism for dumping lnd peer debug info

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

diff --git a/lnet/utils/lnetconfig/liblnetconfig.c b/lnet/utils/lnetconfig/liblnetconfig.c
index bbb412a..4ee7832 100644 (file)
--- a/lnet/utils/lnetconfig/liblnetconfig.c
+++ b/lnet/utils/lnetconfig/liblnetconfig.c
@@ -3986,6 +3986,43 @@ out:
        return rc;
 }
 
+int lustre_lnet_show_peer_debug_info(char *peer_nid, int seq_no,
+                                    struct cYAML **err_rc)
+{
+       struct libcfs_ioctl_data data;
+       int rc;
+       char err_str[LNET_MAX_STR_LEN] = "Error";
+       lnet_nid_t pnid = LNET_NID_ANY;
+
+       if (!peer_nid) {
+               rc = LUSTRE_CFG_RC_BAD_PARAM;
+               snprintf(err_str, LNET_MAX_STR_LEN,
+                        "--nid must be specified");
+               goto out;
+       }
+
+       pnid = libcfs_str2nid(peer_nid);
+       if (pnid == LNET_NID_ANY) {
+               rc = LUSTRE_CFG_RC_BAD_PARAM;
+               snprintf(err_str, LNET_MAX_STR_LEN,
+                       "badly formatted primary NID: %s", peer_nid);
+               goto out;
+       }
+
+       LIBCFS_IOC_INIT(data);
+       data.ioc_net = LNET_NIDNET(pnid);
+       data.ioc_nid = pnid;
+
+       rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER, &data);
+
+out:
+       if (rc != 0)
+               cYAML_build_error(rc, seq_no, "debug", "peer", err_str,
+                                 err_rc);
+
+       return rc;
+}
+
 int lustre_lnet_show_local_ni_recovq(int seq_no, struct cYAML **show_rc,
                                     struct cYAML **err_rc)
 {