From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: "Yang, Zhiyong" <zhiyong.yang@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Richardson, Bruce" <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 0/5] consistent PMD batching behaviour
Date: Sun, 5 Mar 2017 13:02:30 +0000 [thread overview]
Message-ID: <2601191342CEEE43887BDE71AB9772583FAC9B50@IRSMSX109.ger.corp.intel.com> (raw)
In-Reply-To: <1488539851-71009-1-git-send-email-zhiyong.yang@intel.com>
> 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.ananyev@intel.com>
> --
> 2.7.4
next prev parent reply other threads:[~2017-03-05 13:02 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 8:48 [dpdk-dev] [PATCH " Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-02-24 9:32 ` Bruce Richardson
2017-02-24 9:36 ` Bruce Richardson
2017-02-24 9:48 ` Yang, Zhiyong
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 0/5] consistent PMD batching behaviour Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 0/5] consistent PMD batching behaviour Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-03-30 12:54 ` [dpdk-dev] [PATCH v3 0/5] consistent PMD batching behaviour Ferruh Yigit
2017-03-31 7:00 ` Yao, Lei A
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec burst size Zhiyong Yang
2017-03-24 14:03 ` Ferruh Yigit
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-03-05 13:02 ` Ananyev, Konstantin [this message]
2017-03-06 2:13 ` [dpdk-dev] [PATCH v2 0/5] consistent PMD batching behaviour Yang, Zhiyong
2017-03-24 14:02 ` Ferruh Yigit
2017-03-25 6:29 ` Yang, Zhiyong
2017-03-28 10:00 ` Yang, Zhiyong
2017-03-28 10:05 ` Ferruh Yigit
2017-02-24 8:48 ` [dpdk-dev] [PATCH 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec burst size Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-02-24 11:08 ` Kevin Traynor
2017-02-24 13:04 ` Bruce Richardson
2017-02-24 13:33 ` Kevin Traynor
2017-03-01 9:44 ` Maxime Coquelin
2017-03-01 13:24 ` Yang, Zhiyong
2017-02-24 8:48 ` [dpdk-dev] [PATCH 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-02-24 11:41 ` Kevin Traynor
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