LU-13385 lnet: Calculate IB service-id

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

diff --git a/lnet/utils/lnetconfig/liblnetconfig.c b/lnet/utils/lnetconfig/liblnetconfig.c
index 4a64e6e..5714b5c 100644 (file)
--- a/lnet/utils/lnetconfig/liblnetconfig.c
+++ b/lnet/utils/lnetconfig/liblnetconfig.c
@@ -50,6 +50,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <ifaddrs.h>
+#include <rdma/rdma_user_cm.h>
 #include "liblnetconfig.h"
 
 #define CONFIG_CMD             "configure"
@@ -63,8 +64,13 @@
 #define MAX_NUM_IPS            128
 
 #define modparam_path "/sys/module/lnet/parameters/"
+#define o2ib_modparam_path "/sys/module/ko2iblnd/parameters/"
 #define gni_nid_path "/proc/cray_xt/"
 
+#ifndef HAVE_USRSPC_RDMA_PS_TCP
+#define RDMA_PS_TCP 0x0106
+#endif
+
 const char *gmsg_stat_names[] = {"sent_stats", "received_stats",
                                 "dropped_stats"};
 
@@ -3202,7 +3208,7 @@ static void add_to_global(struct cYAML *show_rc, struct cYAML *node,
 }
 
 static int build_global_yaml_entry(char *err_str, int err_len, int seq_no,
-                                  char *name, __u32 value,
+                                  char *name, __u64 value,
                                   struct cYAML **show_rc,
                                   struct cYAML **err_rc, int err)
 {
@@ -3398,6 +3404,28 @@ int lustre_lnet_show_retry_count(int seq_no, struct cYAML **show_rc,
                                       err_rc, l_errno);
 }
 
+int lustre_lnet_calc_service_id(__u64 *service_id)
+{
+       int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
+       char val[LNET_MAX_STR_LEN];
+       int service_port = -1, l_errno = 0;
+
+       rc = read_sysfs_file(o2ib_modparam_path, "service", val,
+                            1, sizeof(val));
+       if (rc) {
+               l_errno = errno;
+               fprintf(stderr, "error:\n    msg: \"cannot get service port: %s (%d)\"\n",
+                       strerror(l_errno), -l_errno);
+               return rc;
+       } else {
+               service_port = atoi(val);
+       }
+
+       *service_id = htobe64(((__u64)RDMA_PS_TCP << 16) + service_port);
+
+       return LUSTRE_CFG_RC_NO_ERR;
+}
+
 int show_recovery_queue(enum lnet_health_type type, char *name, int seq_no,
                        struct cYAML **show_rc, struct cYAML **err_rc)
 {