[dpdk-dev] [RFC v2 1/2] ethdev: add packet filter flow and new behavior switch to fdir

[Wu, Jingjing]

Hi, Rahul

Just another thought, please consider about it:

Add a new flow type like

#define RTE_ETH_FLOW_IPV6_UDP_EX        17
+#define RTE_ETH_FLOW_RAW_PKT             18

Then add a new item in rte_eth_fdir_flow
union rte_eth_fdir_flow {
        struct rte_eth_l2_flow     l2_flow;
        struct rte_eth_udpv4_flow  udp4_flow;
        struct rte_eth_tcpv4_flow  tcp4_flow;
        struct rte_eth_sctpv4_flow sctp4_flow;
        struct rte_eth_ipv4_flow   ip4_flow;
        struct rte_eth_udpv6_flow  udp6_flow;
        struct rte_eth_tcpv6_flow  tcp6_flow;
        struct rte_eth_sctpv6_flow sctp6_flow;
        struct rte_eth_ipv6_flow   ipv6_flow;
        struct rte_eth_mac_vlan_flow mac_vlan_flow;
        struct rte_eth_tunnel_flow   tunnel_flow;
+       uint8_t raw_pkt[80];
};

Then add mask item in rte_eth_fdir_input:

struct rte_eth_fdir_input {
        uint16_t flow_type;
        union rte_eth_fdir_flow flow;
+       union rte_eth_fdir_flow flow_mask;
        /**< Flow fields to match, dependent on flow_type */
        struct rte_eth_fdir_flow_ext flow_ext;
        /**< Additional fields to match */
};

Then the filter can be added just in a format of raw packet, it looks generic, 
and even other NIC can use this too.

Thanks
Jingjing
> -----Original Message-----
> From: Wu, Jingjing
> Sent: Wednesday, January 13, 2016 9:17 PM
> To: Rahul Lakkireddy
> Cc: dev at dpdk.org; Felix Marti; Kumar A S; Nirranjan Kirubaharan
> Subject: RE: [dpdk-dev] [RFC v2 1/2] ethdev: add packet filter flow and new
> behavior switch to fdir
>