From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id EA7562BB2 for ; Fri, 24 Feb 2017 09:48:25 +0100 (CET) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Feb 2017 00:48:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,200,1484035200"; d="scan'208";a="61759871" Received: from unknown (HELO dpdk5.bj.intel.com) ([172.16.182.188]) by orsmga004.jf.intel.com with ESMTP; 24 Feb 2017 00:48:24 -0800 From: Zhiyong Yang To: dev@dpdk.org Date: Fri, 24 Feb 2017 16:48:16 +0800 Message-Id: <1487926101-4637-1-git-send-email-zhiyong.yang@intel.com> X-Mailer: git-send-email 2.7.4 Subject: [dpdk-dev] [PATCH 0/5] consistent PMD batching behaviour X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Feb 2017 08:48:26 -0000 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. 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_ethdev.c | 27 ++++++++++++++++++++- drivers/net/i40e/i40e_rxtx.c | 27 ++++++++++++++++++++- drivers/net/ixgbe/ixgbe_rxtx.c | 27 ++++++++++++++++++++- drivers/net/vhost/rte_eth_vhost.c | 49 +++++++++++++++++++++++++++++++++++---- 4 files changed, 122 insertions(+), 8 deletions(-) -- 2.7.4