> The rte_eth_tx_burst() function in the file Rte_ethdev.h is invoked to > transmit output packets on the output queue for DPDK applications as > follows. > > static inline uint16_t > rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id, > struct rte_mbuf **tx_pkts, uint16_t nb_pkts); > > Note: The fourth parameter nb_pkts: The number of packets to transmit. > > The rte_eth_tx_burst() function returns the number of packets it actually > sent. Most of PMD drivers can support the policy "send as many packets to > transmit as possible" at the PMD level. but the few of PMDs have some sort > of artificial limits for the pkts sent successfully. For example, VHOST tx > burst size is limited to 32 packets. Some rx_burst functions have the > similar problem. The main benefit is consistent batching behavior for user > to simplify their logic and avoid misusage at the application level, there > is unified rte_eth_tx/rx_burst interface already, there is no reason for > inconsistent behaviors. > This patchset fixes it via adding wrapper function at the PMD level. > > Changes in V2: > 1. rename ixgbe, i40e and fm10k vec function XXX_xmit_pkts_vec to new name > XXX_xmit_fixed_burst_vec, new wrapper functions use original name > XXX_xmit_pkts_vec according to Bruce's suggestion. > > 2. simplify the code to avoid the if or if/else. > > Zhiyong Yang (5): > net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size > net/i40e: remove limit of i40e_xmit_pkts_vec burst size > net/ixgbe: remove limit of ixgbe_xmit_pkts_vec burst size > net/vhost: remove limit of vhost TX burst size > net/vhost: remove limit of vhost RX burst size > > drivers/net/fm10k/fm10k.h | 4 ++-- > drivers/net/fm10k/fm10k_ethdev.c | 28 ++++++++++++++++++++++++--- > drivers/net/fm10k/fm10k_rxtx_vec.c | 4 ++-- > drivers/net/i40e/i40e_rxtx.c | 28 ++++++++++++++++++++++++--- > drivers/net/i40e/i40e_rxtx.h | 4 ++-- > drivers/net/i40e/i40e_rxtx_vec_neon.c | 4 ++-- > drivers/net/i40e/i40e_rxtx_vec_sse.c | 4 ++-- > drivers/net/ixgbe/ixgbe_rxtx.c | 29 ++++++++++++++++++++++++++++ > drivers/net/ixgbe/ixgbe_rxtx.h | 4 ++-- > drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c | 4 ++-- > drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c | 4 ++-- > drivers/net/vhost/rte_eth_vhost.c | 34 > +++++++++++++++++++++++++++++---- > 12 files changed, 125 insertions(+), 26 deletions(-) >
Acked-by: Konstantin Ananyev <konstantin.anan...@intel.com> > -- > 2.7.4
