From: Paul M Stillwell Jr Date: Tue, 18 Dec 2018 08:46:21 +0000 (+0800) Subject: net/ice/base: add protocol structures and defines X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=04b8ec1ea807ca3e357043e8041ad64b23590f70;p=dpdk.git net/ice/base: add protocol structures and defines Add the structures and defines that define what protocols the NIC can handle. Signed-off-by: Paul M Stillwell Jr Reviewed-by: Ferruh Yigit --- diff --git a/drivers/net/ice/base/ice_protocol_type.h b/drivers/net/ice/base/ice_protocol_type.h new file mode 100644 index 0000000000..7b92c71057 --- /dev/null +++ b/drivers/net/ice/base/ice_protocol_type.h @@ -0,0 +1,248 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2001-2018 + */ + +#ifndef _ICE_PROTOCOL_TYPE_H_ +#define _ICE_PROTOCOL_TYPE_H_ +#include "ice_flex_type.h" +#define ICE_IPV6_ADDR_LENGTH 16 + +/* Each recipe can match up to 5 different fields. Fields to match can be meta- + * data, values extracted from packet headers, or results from other recipes. + * One of the 5 fields is reserved for matching the switch ID. So, up to 4 + * recipes can provide intermediate results to another one through chaining, + * e.g. recipes 0, 1, 2, and 3 can provide intermediate results to recipe 4. + */ +#define ICE_NUM_WORDS_RECIPE 4 + +/* Max recipes that can be chained */ +#define ICE_MAX_CHAIN_RECIPE 5 + +/* 1 word reserved for switch id from allowed 5 words. + * So a recipe can have max 4 words. And you can chain 5 such recipes + * together. So maximum words that can be programmed for look up is 5 * 4. + */ +#define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE) + +/* Field vector index corresponding to chaining */ +#define ICE_CHAIN_FV_INDEX_START 47 + +enum ice_protocol_type { + ICE_MAC_OFOS = 0, + ICE_MAC_IL, + ICE_IPV4_OFOS, + ICE_IPV4_IL, + ICE_IPV6_IL, + ICE_IPV6_OFOS, + ICE_TCP_IL, + ICE_UDP_ILOS, + ICE_SCTP_IL, + ICE_VXLAN, + ICE_GENEVE, + ICE_VXLAN_GPE, + ICE_NVGRE, + ICE_PROTOCOL_LAST +}; + +enum ice_sw_tunnel_type { + ICE_NON_TUN, + ICE_SW_TUN_VXLAN_GPE, + ICE_SW_TUN_GENEVE, + ICE_SW_TUN_VXLAN, + ICE_SW_TUN_NVGRE, + ICE_SW_TUN_UDP, /* This means all "UDP" tunnel types: VXLAN-GPE, VXLAN + * and GENEVE + */ + ICE_ALL_TUNNELS /* All tunnel types including NVGRE */ +}; + +/* Decoders for ice_prot_id: + * - F: First + * - I: Inner + * - L: Last + * - O: Outer + * - S: Single + */ +enum ice_prot_id { + ICE_PROT_ID_INVAL = 0, + ICE_PROT_MAC_OF_OR_S = 1, + ICE_PROT_MAC_O2 = 2, + ICE_PROT_MAC_IL = 4, + ICE_PROT_MAC_IN_MAC = 7, + ICE_PROT_ETYPE_OL = 9, + ICE_PROT_ETYPE_IL = 10, + ICE_PROT_PAY = 15, + ICE_PROT_EVLAN_O = 16, + ICE_PROT_VLAN_O = 17, + ICE_PROT_VLAN_IF = 18, + ICE_PROT_MPLS_OL_MINUS_1 = 27, + ICE_PROT_MPLS_OL_OR_OS = 28, + ICE_PROT_MPLS_IL = 29, + ICE_PROT_IPV4_OF_OR_S = 32, + ICE_PROT_IPV4_IL = 33, + ICE_PROT_IPV6_OF_OR_S = 40, + ICE_PROT_IPV6_IL = 41, + ICE_PROT_IPV6_FRAG = 47, + ICE_PROT_TCP_IL = 49, + ICE_PROT_UDP_OF = 52, + ICE_PROT_UDP_IL_OR_S = 53, + ICE_PROT_GRE_OF = 64, + ICE_PROT_NSH_F = 84, + ICE_PROT_ESP_F = 88, + ICE_PROT_ESP_2 = 89, + ICE_PROT_SCTP_IL = 96, + ICE_PROT_ICMP_IL = 98, + ICE_PROT_ICMPV6_IL = 100, + ICE_PROT_VRRP_F = 101, + ICE_PROT_OSPF = 102, + ICE_PROT_ATAOE_OF = 114, + ICE_PROT_CTRL_OF = 116, + ICE_PROT_LLDP_OF = 117, + ICE_PROT_ARP_OF = 118, + ICE_PROT_EAPOL_OF = 120, + ICE_PROT_META_ID = 255, /* when offset == metaddata */ + ICE_PROT_INVALID = 255 /* when offset == 0xFF */ +}; + + +#define ICE_MAC_OFOS_HW 1 +#define ICE_MAC_IL_HW 4 +#define ICE_IPV4_OFOS_HW 32 +#define ICE_IPV4_IL_HW 33 +#define ICE_IPV6_OFOS_HW 40 +#define ICE_IPV6_IL_HW 41 +#define ICE_TCP_IL_HW 49 +#define ICE_UDP_ILOS_HW 53 +#define ICE_SCTP_IL_HW 96 + +/* ICE_UDP_OF is used to identify all 3 tunnel types + * VXLAN, GENEVE and VXLAN_GPE. To differentiate further + * need to use flags from the field vector + */ +#define ICE_UDP_OF_HW 52 /* UDP Tunnels */ +#define ICE_GRE_OF_HW 64 /* NVGRE */ +#define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */ + +#define ICE_TUN_FLAG_MASK 0xFF +#define ICE_TUN_FLAG_FV_IND 2 + +#define ICE_PROTOCOL_MAX_ENTRIES 16 + +/* Mapping of software defined protocol id to hardware defined protocol id */ +struct ice_protocol_entry { + enum ice_protocol_type type; + u8 protocol_id; +}; + + +struct ice_ether_hdr { + u8 dst_addr[ETH_ALEN]; + u8 src_addr[ETH_ALEN]; + u16 ethtype_id; +}; + +struct ice_ether_vlan_hdr { + u8 dst_addr[ETH_ALEN]; + u8 src_addr[ETH_ALEN]; + u32 vlan_id; +}; + +struct ice_ipv4_hdr { + u8 version; + u8 tos; + u16 total_length; + u16 id; + u16 frag_off; + u8 time_to_live; + u8 protocol; + u16 check; + u32 src_addr; + u32 dst_addr; +}; + +struct ice_ipv6_hdr { + u8 version; + u8 tc; + u16 flow_label; + u16 payload_len; + u8 next_hdr; + u8 hop_limit; + u8 src_addr[ICE_IPV6_ADDR_LENGTH]; + u8 dst_addr[ICE_IPV6_ADDR_LENGTH]; +}; + +struct ice_sctp_hdr { + u16 src_port; + u16 dst_port; + u32 verification_tag; + u32 check; +}; + +struct ice_l4_hdr { + u16 src_port; + u16 dst_port; + u16 len; + u16 check; +}; + +struct ice_udp_tnl_hdr { + u16 field; + u16 proto_type; + u16 vni; +}; + +struct ice_nvgre { + u16 tni; + u16 flow_id; +}; + +union ice_prot_hdr { + struct ice_ether_hdr eth_hdr; + struct ice_ipv4_hdr ipv4_hdr; + struct ice_ipv6_hdr ice_ipv6_ofos_hdr; + struct ice_l4_hdr l4_hdr; + struct ice_sctp_hdr sctp_hdr; + struct ice_udp_tnl_hdr tnl_hdr; + struct ice_nvgre nvgre_hdr; +}; + +/* This is mapping table entry that maps every word within a given protocol + * structure to the real byte offset as per the specification of that + * protocol header. + * for e.g. dst address is 3 words in ethertype header and corresponding bytes + * are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8 + */ +struct ice_prot_ext_tbl_entry { + enum ice_protocol_type prot_type; + /* Byte offset into header of given protocol type */ + u8 offs[sizeof(union ice_prot_hdr)]; +}; + +/* Extractions to be looked up for a given recipe */ +struct ice_prot_lkup_ext { + u16 prot_type; + u8 n_val_words; + /* create a buffer to hold max words per recipe */ + u8 field_off[ICE_MAX_CHAIN_WORDS]; + + struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS]; + + /* Indicate field offsets that have field vector indices assigned */ + ice_declare_bitmap(done, ICE_MAX_CHAIN_WORDS); +}; + +struct ice_pref_recipe_group { + u8 n_val_pairs; /* Number of valid pairs */ + struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE]; +}; + +struct ice_recp_grp_entry { + struct LIST_ENTRY_TYPE l_entry; + +#define ICE_INVAL_CHAIN_IND 0xFF + u16 rid; + u8 chain_idx; + u16 fv_idx[ICE_NUM_WORDS_RECIPE]; + struct ice_pref_recipe_group r_group; +}; +#endif /* _ICE_PROTOCOL_TYPE_H_ */