+/*********************************************************************
+ *
+ * TX prep functions
+ *
+ **********************************************************************/
+uint16_t
+ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+{
+ int i, ret;
+ uint64_t ol_flags;
+ struct rte_mbuf *m;
+ struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
+
+ for (i = 0; i < nb_pkts; i++) {
+ m = tx_pkts[i];
+ ol_flags = m->ol_flags;
+
+ /**
+ * Check if packet meets requirements for number of segments
+ *
+ * NOTE: for ixgbe it's always (40 - WTHRESH) for both TSO and
+ * non-TSO
+ */
+
+ if (m->nb_segs > IXGBE_TX_MAX_SEG - txq->wthresh) {
+ rte_errno = -EINVAL;
+ return i;
+ }
+
+ if (ol_flags & IXGBE_TX_OFFLOAD_NOTSUP_MASK) {
+ rte_errno = -ENOTSUP;
+ return i;
+ }
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+ ret = rte_validate_tx_offload(m);
+ if (ret != 0) {
+ rte_errno = ret;
+ return i;
+ }
+#endif
+ ret = rte_net_intel_cksum_prepare(m);
+ if (ret != 0) {
+ rte_errno = ret;
+ return i;
+ }
+ }
+
+ return i;
+}
+