From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xueming Li Subject: [PATCH v2 06/15] net/mlx5: split flow RSS handling logic Date: Tue, 10 Apr 2018 21:34:06 +0800 Message-ID: <20180410133415.189905-7-xuemingl@mellanox.com> References: <20180410133415.189905-1-xuemingl@mellanox.com> Cc: Xueming Li , dev@dpdk.org To: Nelio Laranjeiro , Shahaf Shuler Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id ABC321BA86 for ; Tue, 10 Apr 2018 15:34:36 +0200 (CEST) In-Reply-To: <20180410133415.189905-1-xuemingl@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch split out flow RSS hash field handling logic to dedicate function. Signed-off-by: Xueming Li --- drivers/net/mlx5/mlx5_flow.c | 94 +++++++++++++++++++++++++------------------- 1 file changed, 53 insertions(+), 41 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index b3ad6dc85..64658bc0e 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -992,13 +992,6 @@ mlx5_flow_update_priority(struct rte_eth_dev *dev, static void mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) { - const unsigned int ipv4 = - hash_rxq_init[parser->layer].ip_version == MLX5_IPV4; - const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6; - const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; - const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4; - const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4; - const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; unsigned int i; /* Remove any other flow not matching the pattern. */ @@ -1011,40 +1004,6 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) } return; } - if (parser->layer == HASH_RXQ_ETH) { - goto fill; - } else { - /* - * This layer becomes useless as the pattern define under - * layers. - */ - rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr); - parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; - } - /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */ - for (i = ohmin; i != (ohmax + 1); ++i) { - if (!parser->queue[i].ibv_attr) - continue; - rte_free(parser->queue[i].ibv_attr); - parser->queue[i].ibv_attr = NULL; - } - /* Remove impossible flow according to the RSS configuration. */ - if (hash_rxq_init[parser->layer].dpdk_rss_hf & - parser->rss_conf.types) { - /* Remove any other flow. */ - for (i = hmin; i != (hmax + 1); ++i) { - if ((i == parser->layer) || - (!parser->queue[i].ibv_attr)) - continue; - rte_free(parser->queue[i].ibv_attr); - parser->queue[i].ibv_attr = NULL; - } - } else if (!parser->queue[ip].ibv_attr) { - /* no RSS possible with the current configuration. */ - parser->rss_conf.queue_num = 1; - return; - } -fill: /* * Fill missing layers in verbs specifications, or compute the correct * offset to allocate the memory space for the attributes and @@ -1107,6 +1066,56 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) } /** + * Update flows according to pattern and RSS hash fields. + * + * @param[in, out] parser + * Internal parser structure. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +mlx5_flow_convert_rss(struct mlx5_flow_parse *parser) +{ + const unsigned int ipv4 = + hash_rxq_init[parser->layer].ip_version == MLX5_IPV4; + const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6; + const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; + const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4; + const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4; + const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; + unsigned int i; + + if (parser->layer == HASH_RXQ_ETH) + return 0; + /* This layer becomes useless as the pattern define under layers. */ + rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr); + parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; + /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */ + for (i = ohmin; i != (ohmax + 1); ++i) { + if (!parser->queue[i].ibv_attr) + continue; + rte_free(parser->queue[i].ibv_attr); + parser->queue[i].ibv_attr = NULL; + } + /* Remove impossible flow according to the RSS configuration. */ + if (hash_rxq_init[parser->layer].dpdk_rss_hf & + parser->rss_conf.types) { + /* Remove any other flow. */ + for (i = hmin; i != (hmax + 1); ++i) { + if (i == parser->layer || !parser->queue[i].ibv_attr) + continue; + rte_free(parser->queue[i].ibv_attr); + parser->queue[i].ibv_attr = NULL; + } + } else if (!parser->queue[ip].ibv_attr) { + /* no RSS possible with the current configuration. */ + parser->rss_conf.queue_num = 1; + } + return 0; +} + +/** * Validate and convert a flow supported by the NIC. * * @param dev @@ -1214,6 +1223,9 @@ mlx5_flow_convert(struct rte_eth_dev *dev, * configuration. */ if (!parser->drop) + ret = mlx5_flow_convert_rss(parser); + if (ret) + goto exit_free; mlx5_flow_convert_finalise(parser); mlx5_flow_update_priority(dev, parser, attr); exit_free: -- 2.13.3