> -----Original Message-----
> From: Su, Simei
> Sent: Sunday, September 29, 2019 3:09 PM
> To: Zhang, Qi Z <qi.z.zh...@intel.com>; Wu, Jingjing <jingjing...@intel.com>;
> Ye, Xiaolong <xiaolong...@intel.com>; Yigit, Ferruh <ferruh.yi...@intel.com>
> Cc: dev@dpdk.org; Su, Simei <simei...@intel.com>
> Subject: [PATCH v7 2/3] ethdev: extend RSS offload types
>
> This patch reserves several bits as input set selection from the high end of
> the 64
> bits. It is combined with exisiting ETH_RSS_* to represent rss types.
>
> for example:
> ETH_RSS_IPV4 | ETH_RSS_L3_SRC_ONLY: hash on src ip address only
> ETH_RSS_IPV4_UDP | ETH_RSS_L4_DST_ONLY: hash on src/dst IP and
> dst UDP port
>
> Signed-off-by: Simei Su <simei...@intel.com>
Acked-by: Ori Kam <or...@mellanox.com>
> ---
> lib/librte_ethdev/rte_ethdev.h | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index
> 7722f70..e68bca8 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -505,6 +505,19 @@ struct rte_eth_rss_conf {
> #define ETH_RSS_GENEVE (1ULL << 20)
> #define ETH_RSS_NVGRE (1ULL << 21)
>
> +/*
> + * We use the following macros to combine with above ETH_RSS_* for
> + * more specific input set selection. These bits are defined starting
> + * from the high end of the 64 bits.
> + * Note: If we use above ETH_RSS_* without SRC/DST_ONLY, it represents
> + * both SRC and DST are taken into account. SRC_ONLY and DST_ONLY of
> + * the same level can't be used simultaneously.
> + */
> +#define ETH_RSS_L3_SRC_ONLY (1ULL << 63)
> +#define ETH_RSS_L3_DST_ONLY (1ULL << 62)
> +#define ETH_RSS_L4_SRC_ONLY (1ULL << 61)
> +#define ETH_RSS_L4_DST_ONLY (1ULL << 60)
> +
> #define ETH_RSS_IP ( \
> ETH_RSS_IPV4 | \
> ETH_RSS_FRAG_IPV4 | \
> --
> 1.8.3.1
