XXXX introduce drv_sectohz

*** 189,199 ****
  static void
  ibcm_path_cache_timeout_cb(void *arg)
  {
          clock_t timeout_in_hz;
  
!         timeout_in_hz = drv_usectohz(ibcm_path_cache_timeout * 1000000);
          mutex_enter(&ibcm_path_cache_mutex);
          ibcm_path_cache_invalidate = 1; /* invalidate cache on next check */
          if (ibcm_path_cache_timeout_id)
                  ibcm_path_cache_timeout_id = timeout(ibcm_path_cache_timeout_cb,
                      NULL, timeout_in_hz);
--- 189,199 ----
  static void
  ibcm_path_cache_timeout_cb(void *arg)
  {
          clock_t timeout_in_hz;
  
!         timeout_in_hz = drv_sectohz(ibcm_path_cache_timeout);
          mutex_enter(&ibcm_path_cache_mutex);
          ibcm_path_cache_invalidate = 1; /* invalidate cache on next check */
          if (ibcm_path_cache_timeout_id)
                  ibcm_path_cache_timeout_id = timeout(ibcm_path_cache_timeout_cb,
                      NULL, timeout_in_hz);
*** 206,216 ****
  {
          clock_t timeout_in_hz;
          int cache_size = ibcm_path_cache_size_init;
          ibcm_path_cache_t *path_cachep;
  
!         timeout_in_hz = drv_usectohz(ibcm_path_cache_timeout * 1000000);
          path_cachep = kmem_zalloc(cache_size * sizeof (*path_cachep), KM_SLEEP);
          mutex_init(&ibcm_path_cache_mutex, NULL, MUTEX_DEFAULT, NULL);
          mutex_enter(&ibcm_path_cache_mutex);
          ibcm_path_cache_size = cache_size;
          ibcm_path_cachep = path_cachep;
--- 206,216 ----
  {
          clock_t timeout_in_hz;
          int cache_size = ibcm_path_cache_size_init;
          ibcm_path_cache_t *path_cachep;
  
!         timeout_in_hz = drv_sectohz(ibcm_path_cache_timeout);
          path_cachep = kmem_zalloc(cache_size * sizeof (*path_cachep), KM_SLEEP);
          mutex_init(&ibcm_path_cache_mutex, NULL, MUTEX_DEFAULT, NULL);
          mutex_enter(&ibcm_path_cache_mutex);
          ibcm_path_cache_size = cache_size;
          ibcm_path_cachep = path_cachep;