From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerin Jacob Subject: [PATCH] ethdev: make struct rte_eth_dev cache aligned Date: Mon, 2 May 2016 13:37:45 +0530 Message-ID: <1462176465-21562-1-git-send-email-jerin.jacob@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , Jerin Jacob To: Return-path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0064.outbound.protection.outlook.com [65.55.169.64]) by dpdk.org (Postfix) with ESMTP id F22B54CE6 for ; Mon, 2 May 2016 10:08:22 +0200 (CEST) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Elements of struct rte_eth_dev used in the fast path. Make struct rte_eth_dev cache aligned to avoid the cases where rte_eth_dev elements share the same cache line with other structures. Signed-off-by: Jerin Jacob --- lib/librte_ether/rte_ethdev.c | 2 +- lib/librte_ether/rte_ethdev.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index a31018e..04f492d 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -70,7 +70,7 @@ #include "rte_ethdev.h" static const char *MZ_RTE_ETH_DEV_DATA = "rte_eth_dev_data"; -struct rte_eth_dev rte_eth_devices[RTE_MAX_ETHPORTS]; +struct rte_eth_dev rte_eth_devices[RTE_MAX_ETHPORTS] __rte_cache_aligned; static struct rte_eth_dev_data *rte_eth_dev_data; static uint8_t nb_ports; diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 8519ff6..e359dda 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -1630,7 +1630,7 @@ struct rte_eth_dev { struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT]; uint8_t attached; /**< Flag indicating the port is attached */ enum rte_eth_dev_type dev_type; /**< Flag indicating the device type */ -}; +} __rte_cache_aligned; struct rte_eth_dev_sriov { uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */ -- 2.1.0