+static inline int
+check_lro_pkt_size(uint16_t port_id, uint32_t config_size,
+ uint32_t max_rx_pkt_len, uint32_t dev_info_size)
+{
+ int ret = 0;
+
+ if (dev_info_size == 0) {
+ if (config_size != max_rx_pkt_len) {
+ RTE_ETHDEV_LOG(ERR, "Ethdev port_id=%d max_lro_pkt_size"
+ " %u != %u is not allowed\n",
+ port_id, config_size, max_rx_pkt_len);
+ ret = -EINVAL;
+ }
+ } else if (config_size > dev_info_size) {
+ RTE_ETHDEV_LOG(ERR, "Ethdev port_id=%d max_lro_pkt_size %u "
+ "> max allowed value %u\n", port_id, config_size,
+ dev_info_size);
+ ret = -EINVAL;
+ } else if (config_size < RTE_ETHER_MIN_LEN) {
+ RTE_ETHDEV_LOG(ERR, "Ethdev port_id=%d max_lro_pkt_size %u "
+ "< min allowed value %u\n", port_id, config_size,
+ (unsigned int)RTE_ETHER_MIN_LEN);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Validate offloads that are requested through rte_eth_dev_configure against
+ * the offloads successfuly set by the ethernet device.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @param req_offloads
+ * The offloads that have been requested through `rte_eth_dev_configure`.
+ * @param set_offloads
+ * The offloads successfuly set by the ethernet device.
+ * @param offload_type
+ * The offload type i.e. Rx/Tx string.
+ * @param offload_name
+ * The function that prints the offload name.
+ * @return
+ * - (0) if validation successful.
+ * - (-EINVAL) if requested offload has been silently disabled.
+ *
+ */
+static int
+validate_offloads(uint16_t port_id, uint64_t req_offloads,
+ uint64_t set_offloads, const char *offload_type,
+ const char *(*offload_name)(uint64_t))
+{
+ uint64_t offloads_diff = req_offloads ^ set_offloads;
+ uint64_t offload;
+ int ret = 0;
+
+ while (offloads_diff != 0) {
+ /* Check if any offload is requested but not enabled. */
+ offload = 1ULL << __builtin_ctzll(offloads_diff);
+ if (offload & req_offloads) {
+ RTE_ETHDEV_LOG(ERR,
+ "Port %u failed to enable %s offload %s\n",
+ port_id, offload_type, offload_name(offload));
+ ret = -EINVAL;
+ }
+
+ /* Chech if offload couldn't be disabled. */
+ if (offload & set_offloads) {
+ RTE_ETHDEV_LOG(DEBUG,
+ "Port %u %s offload %s is not requested but enabled\n",
+ port_id, offload_type, offload_name(offload));
+ }
+
+ offloads_diff &= ~offload;
+ }
+
+ return ret;
+}
+