Hi, The documentation of this method says: Applications implementing a "retrieve as much received packets as possible" policy can check this specific case and keep invoking the rte_eth_rx_burst() <http://dpdk.org/doc/api/rte__ethdev_8h.html#aee7daffe261e67355a78b106627c4c45>function until a value less than nb_pkts is returned.
But the function returns at most 32 packets regardless of the burst size parameter (nb_pkts). For example when I set the burst size to 256, it only returns 32 packets even though the queue has more packets. This means that I cannot rely on the returned value to know if there are > 256 packets in the queue or not. Where this number 32 comes from? Is it because "PMD: ixgbe_set_rx_function(): Vector rx enabled, please make sure RX burst size no less than 32." ? I use DPDK 2.0.0 and Intel 82599 10 G NIC. Thanks