+extern uint32_t kgni_driver_version;
+
+static inline void
+kgnilnd_check_kgni_version(void)
+{
+ uint32_t *kdv;
+
+ kgnilnd_data.kgn_enable_gl_mutex = 1;
+ kdv = symbol_get(kgni_driver_version);
+ if (!kdv) {
+ LCONSOLE_INFO("Not using thread safe locking -"
+ " no symbol kgni_driver_version\n");
+ return;
+ }
+
+ /* Thread-safe kgni implemented in minor ver 0x44/45, code rev 0xb9 */
+ if (*kdv < GNI_VERSION_CHECK(0, GNILND_KGNI_TS_MINOR_VER, 0xb9)) {
+ symbol_put(kgni_driver_version);
+ LCONSOLE_INFO("Not using thread safe locking, gni version 0x%x,"
+ " need >= 0x%x\n", *kdv,
+ GNI_VERSION_CHECK(0, GNILND_KGNI_TS_MINOR_VER, 0xb9));
+ return;
+ }
+
+ symbol_put(kgni_driver_version);
+
+ if (!*kgnilnd_tunables.kgn_thread_safe) {
+ return;
+ }
+
+ /* Use thread-safe locking */
+ kgnilnd_data.kgn_enable_gl_mutex = 0;
+}