+int __rte_experimental
+rte_eth_dev_rx_intr_ctl_q_get_fd(uint16_t port_id, uint16_t queue_id)
+{
+ struct rte_intr_handle *intr_handle;
+ struct rte_eth_dev *dev;
+ unsigned int efd_idx;
+ uint32_t vec;
+ int fd;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
+
+ dev = &rte_eth_devices[port_id];
+
+ if (queue_id >= dev->data->nb_rx_queues) {
+ RTE_ETHDEV_LOG(ERR, "Invalid RX queue_id=%u\n", queue_id);
+ return -1;
+ }
+
+ if (!dev->intr_handle) {
+ RTE_ETHDEV_LOG(ERR, "RX Intr handle unset\n");
+ return -1;
+ }
+
+ intr_handle = dev->intr_handle;
+ if (!intr_handle->intr_vec) {
+ RTE_ETHDEV_LOG(ERR, "RX Intr vector unset\n");
+ return -1;
+ }
+
+ vec = intr_handle->intr_vec[queue_id];
+ efd_idx = (vec >= RTE_INTR_VEC_RXTX_OFFSET) ?
+ (vec - RTE_INTR_VEC_RXTX_OFFSET) : vec;
+ fd = intr_handle->efds[efd_idx];
+
+ return fd;
+}
+