+static inline struct rte_eth_dev *
+fs_dev(struct sub_device *sdev) {
+ return &rte_eth_devices[sdev->fs_port_id];
+}
+
+/*
+ * Lock hot-plug mutex.
+ * is_alarm means that the caller is, for sure, the hot-plug alarm mechanism.
+ */
+static inline int
+fs_lock(struct rte_eth_dev *dev, unsigned int is_alarm)
+{
+ int ret;
+
+ if (is_alarm) {
+ ret = pthread_mutex_trylock(&PRIV(dev)->hotplug_mutex);
+ if (ret) {
+ DEBUG("Hot-plug mutex lock trying failed(%s), will try"
+ " again later...", strerror(ret));
+ return ret;
+ }
+ PRIV(dev)->alarm_lock = 1;
+ } else {
+ ret = pthread_mutex_lock(&PRIV(dev)->hotplug_mutex);
+ if (ret) {
+ ERROR("Cannot lock mutex(%s)", strerror(ret));
+ return ret;
+ }
+ }
+ return ret;
+}
+
+/*
+ * Unlock hot-plug mutex.
+ * is_alarm means that the caller is, for sure, the hot-plug alarm mechanism.
+ */
+static inline void
+fs_unlock(struct rte_eth_dev *dev, unsigned int is_alarm)
+{
+ int ret;
+
+ if (is_alarm) {
+ RTE_ASSERT(PRIV(dev)->alarm_lock == 1);
+ PRIV(dev)->alarm_lock = 0;
+ }
+ ret = pthread_mutex_unlock(&PRIV(dev)->hotplug_mutex);
+ if (ret)
+ ERROR("Cannot unlock hot-plug mutex(%s)", strerror(ret));
+}
+