From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Zhao Subject: [PATCH] net/i40e: add comment for flow RSS parse function Date: Mon, 9 Apr 2018 14:19:01 +0800 Message-ID: <1523254741-36400-1-git-send-email-wei.zhao1@intel.com> Cc: stable@dpdk.org, qi.z.zhang@intel.com, Wei Zhao To: dev@dpdk.org Return-path: 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 add comment for flow rss parse function in order to explain some important info. Fixes: ecad87d22383 ("net/i40e: move RSS to flow API") Signed-off-by: Wei Zhao --- drivers/net/i40e/i40e_flow.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index 2068026..6404168 100644 --- a/drivers/net/i40e/i40e_flow.c +++ b/drivers/net/i40e/i40e_flow.c @@ -4171,6 +4171,19 @@ i40e_flow_parse_rss_pattern(__rte_unused struct rte_eth_dev *dev, return 0; } +/** + * This function is used to parse rss queue index, total queue number and + * hash functions, If the purpose of this configuration is for queue region + * configuration, it will set queue_region_conf flag to TRUE, else to FALSE. + * In queue region configuration, it also need to parse hardware flowtype + * and user_priority from configuration, it will also cheeck the validity + * of these parameters. For example, The queue region sizes should + * be any of the following values: 1, 2, 4, 8, 16, 32, 64, the + * hw_flowtype or PCTYPE max index should be 63, the user priority + * max index should be 7, and so on. And also, queue index should be + * continuous sequence and queue region index should be part of rss + * queue index for this port. + */ static int i40e_flow_parse_rss_action(struct rte_eth_dev *dev, const struct rte_flow_action *actions, -- 2.7.5