diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_protocol_type.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_protocol_type.h | 468 |
1 files changed, 468 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_protocol_type.h b/drivers/net/ethernet/intel/ice/ice_protocol_type.h new file mode 100644 index 000000000..f6f27361c --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_protocol_type.h @@ -0,0 +1,468 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2019, Intel Corporation. */ + +#ifndef _ICE_PROTOCOL_TYPE_H_ +#define _ICE_PROTOCOL_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_ETYPE_OL, + ICE_ETYPE_IL, + ICE_VLAN_OFOS, + ICE_IPV4_OFOS, + ICE_IPV4_IL, + ICE_IPV6_OFOS, + ICE_IPV6_IL, + ICE_TCP_IL, + ICE_UDP_OF, + ICE_UDP_ILOS, + ICE_VXLAN, + ICE_GENEVE, + ICE_NVGRE, + ICE_GTP, + ICE_GTP_NO_PAY, + ICE_PPPOE, + ICE_L2TPV3, + ICE_VLAN_EX, + ICE_VLAN_IN, + ICE_HW_METADATA, + ICE_VXLAN_GPE, + ICE_SCTP_IL, + ICE_PROTOCOL_LAST +}; + +enum ice_sw_tunnel_type { + ICE_NON_TUN = 0, + ICE_SW_TUN_AND_NON_TUN, + ICE_SW_TUN_VXLAN, + ICE_SW_TUN_GENEVE, + ICE_SW_TUN_NVGRE, + ICE_SW_TUN_GTPU, + ICE_SW_TUN_GTPC, + 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_IL = 4, + ICE_PROT_ETYPE_OL = 9, + ICE_PROT_ETYPE_IL = 10, + 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_TCP_IL = 49, + ICE_PROT_UDP_OF = 52, + ICE_PROT_UDP_IL_OR_S = 53, + ICE_PROT_GRE_OF = 64, + 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_PPPOE = 103, + ICE_PROT_L2TPV3 = 104, + ICE_PROT_ARP_OF = 118, + ICE_PROT_META_ID = 255, /* when offset == metadata */ + ICE_PROT_INVALID = 255 /* when offset == ICE_FV_OFFSET_INVAL */ +}; + +#define ICE_VNI_OFFSET 12 /* offset of VNI from ICE_PROT_UDP_OF */ + +#define ICE_MAC_OFOS_HW 1 +#define ICE_MAC_IL_HW 4 +#define ICE_ETYPE_OL_HW 9 +#define ICE_ETYPE_IL_HW 10 +#define ICE_VLAN_OF_HW 16 +#define ICE_VLAN_OL_HW 17 +#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_GRE_OF_HW 64 +#define ICE_PPPOE_HW 103 +#define ICE_L2TPV3_HW 104 + +#define ICE_UDP_OF_HW 52 /* UDP Tunnels */ + + +#define ICE_TUN_FLAG_FV_IND 2 + +/* 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]; +}; + +struct ice_ethtype_hdr { + __be16 ethtype_id; +}; + +struct ice_ether_vlan_hdr { + u8 dst_addr[ETH_ALEN]; + u8 src_addr[ETH_ALEN]; + __be32 vlan_id; +}; + +struct ice_vlan_hdr { + __be16 type; + __be16 vlan; +}; + +struct ice_ipv4_hdr { + u8 version; + u8 tos; + __be16 total_length; + __be16 id; + __be16 frag_off; + u8 time_to_live; + u8 protocol; + __be16 check; + __be32 src_addr; + __be32 dst_addr; +}; + +struct ice_ipv6_hdr { + __be32 be_ver_tc_flow; + __be16 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 { + __be16 src_port; + __be16 dst_port; + __be32 verification_tag; + __be32 check; +}; + +struct ice_l4_hdr { + __be16 src_port; + __be16 dst_port; + __be16 len; + __be16 check; +}; + +struct ice_udp_tnl_hdr { + __be16 field; + __be16 proto_type; + __be32 vni; /* only use lower 24-bits */ +}; + +struct ice_udp_gtp_hdr { + u8 flags; + u8 msg_type; + __be16 rsrvd_len; + __be32 teid; + __be16 rsrvd_seq_nbr; + u8 rsrvd_n_pdu_nbr; + u8 rsrvd_next_ext; + u8 rsvrd_ext_len; + u8 pdu_type; + u8 qfi; + u8 rsvrd; +}; + +struct ice_pppoe_hdr { + u8 rsrvd_ver_type; + u8 rsrvd_code; + __be16 session_id; + __be16 length; + __be16 ppp_prot_id; /* control and data only */ +}; + +struct ice_l2tpv3_sess_hdr { + __be32 session_id; + __be64 cookie; +}; + +struct ice_nvgre_hdr { + __be16 flags; + __be16 protocol; + __be32 tni_flow; +}; + +/* Metadata information + * + * Not all MDIDs can be used by switch block. It depends on package version. + * + * MDID 16 (Rx offset) + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | A | B | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * A = Source port where the transaction came from (3b). + * + * B = Destination TC of the packet. The TC is relative to a port (5b). + * + * MDID 17 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | PTYPE | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * PTYPE = Encodes the packet type (10b). + * + * MDID 18 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Packet length | R | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * Packet length = Length of the packet in bytes + * (packet always carriers CRC) (14b). + * R = Reserved (2b). + * + * MDID 19 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Source VSI | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * Source VSI = Source VSI of packet loopbacked in switch (for egress) (10b). + */ +#define ICE_MDID_SOURCE_VSI_MASK GENMASK(9, 0) + +/* + * MDID 20 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |A|B|C|D|E|F|R|R|G|H|I|J|K|L|M|N| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * A = DSI - set for DSI RX pkts. + * B = ipsec_decrypted - invalid on NIC. + * C = marker - this is a marker packet. + * D = from_network - for TX sets to 0 + * for RX: + * * 1 - packet is from external link + * * 0 - packet source is from internal + * E = source_interface_is_rx - reflect the physical interface from where the + * packet was received: + * * 1 - Rx + * * 0 - Tx + * F = from_mng - The bit signals that the packet's origin is the management. + * G = ucast - Outer L2 MAC address is unicast. + * H = mcast - Outer L2 MAC address is multicast. + * I = bcast - Outer L2 MAC address is broadcast. + * J = second_outer_mac_present - 2 outer MAC headers are present in the packet. + * K = STAG or BVLAN - Outer L2 header has STAG (ethernet type 0x88a8) or + * BVLAN (ethernet type 0x88a8). + * L = ITAG - Outer L2 header has ITAG *ethernet type 0x88e7) + * M = EVLAN (0x8100) - Outer L2 header has EVLAN (ethernet type 0x8100) + * N = EVLAN (0x9100) - Outer L2 header has EVLAN (ethernet type 0x9100) + */ +#define ICE_PKT_FROM_NETWORK BIT(3) +#define ICE_PKT_VLAN_STAG BIT(12) +#define ICE_PKT_VLAN_ITAG BIT(13) +#define ICE_PKT_VLAN_EVLAN (BIT(14) | BIT(15)) +#define ICE_PKT_VLAN_MASK (ICE_PKT_VLAN_STAG | ICE_PKT_VLAN_ITAG | \ + ICE_PKT_VLAN_EVLAN) +/* MDID 21 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |A|B|C|D|E|F|G|H|I|J|R|R|K|L|M|N| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * A = VLAN (0x8100) - Outer L2 header has VLAN (ethernet type 0x8100) + * B = NSHoE - Outer L2 header has NSH (ethernet type 0x894f) + * C = MPLS (0x8847) - There is at least 1 MPLS tag in the outer header + * (ethernet type 0x8847) + * D = MPLS (0x8848) - There is at least 1 MPLS tag in the outer header + * (ethernet type 0x8848) + * E = multi MPLS - There is more than a single MPLS tag in the outer header + * F = inner MPLS - There is inner MPLS tag in the packet + * G = tunneled MAC - Set if the packet includes a tunneled MAC + * H = tunneled VLAN - Same as VLAN, but for a tunneled header + * I = pkt_is_frag - Packet is fragmented (ipv4 or ipv6) + * J = ipv6_ext - The packet has routing or destination ipv6 extension in inner + * or outer ipv6 headers + * K = RoCE - UDP packet detected as RoCEv2 + * L = UDP_XSUM_0 - Set to 1 if L4 checksum is 0 in a UDP packet + * M = ESP - This is a ESP packet + * N = NAT_ESP - This is a ESP packet encapsulated in UDP NAT + */ +#define ICE_PKT_TUNNEL_MAC BIT(6) +#define ICE_PKT_TUNNEL_VLAN BIT(7) +#define ICE_PKT_TUNNEL_MASK (ICE_PKT_TUNNEL_MAC | ICE_PKT_TUNNEL_VLAN) + +/* MDID 22 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |A|B|C|D|E|F| G |H|I|J| K |L|M| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * A = fin - fin flag in tcp header + * B = sync - sync flag in tcp header + * C = rst - rst flag in tcp header + * D = psh - psh flag in tcp header + * E = ack - ack flag in tcp header + * F = urg - urg flag in tcp header + * G = tunnel type (3b) - Flags used to decode tunnel type: + * * b000 - not a VXLAN/Geneve/GRE tunnel + * * b001 - VXLAN-GPE + * * b010 - VXLAN (non-GPE) + * * b011 - Geneve + * * b100 - GRE (no key, no xsum) + * * b101 - GREK (key, no xsum) + * * b110 - GREC (no key, xsum) + * * b111 - GREKC (key, xsum) + * H = UDP_GRE - Packet is UDP (VXLAN or VLAN_GPE or Geneve or MPLSoUDP or GRE) + * tunnel + * I = OAM - VXLAN/Geneve/tunneled NSH packet with the OAM bit set + * J = tunneled NSH - Packet has NSHoGRE or NSHoUDP + * K = switch (2b) - Direction on switch + * * b00 - normal + * * b01 - TX force only LAN + * * b10 - TX disable LAN + * * b11 - direct to VSI + * L = swpe - Represents SWPE bit in TX command + * M = sw_cmd - Switch command + * + * MDID 23 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |A|B|C|D| R |E|F|R| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * A = MAC error - Produced by MAC according to L2 error conditions + * B = PPRS no offload - FIFO overflow in PPRS or any problematic condition in + * PPRS ANA + * C = abort - Set when malicious packet is detected + * D = partial analysis - ANA's analysing got cut in the middle + * (header > 504B etc.) + * E = FLM - Flow director hit indication + * F = FDLONG - Flow direector long bucket indication + * + */ +#define ICE_MDID_SIZE 2 +#define ICE_META_DATA_ID_HW 255 + +enum ice_hw_metadata_id { + ICE_SOURCE_PORT_MDID = 16, + ICE_PTYPE_MDID = 17, + ICE_PACKET_LENGTH_MDID = 18, + ICE_SOURCE_VSI_MDID = 19, + ICE_PKT_VLAN_MDID = 20, + ICE_PKT_TUNNEL_MDID = 21, + ICE_PKT_TCP_MDID = 22, + ICE_PKT_ERROR_MDID = 23, +}; + +enum ice_hw_metadata_offset { + ICE_SOURCE_PORT_MDID_OFFSET = ICE_MDID_SIZE * ICE_SOURCE_PORT_MDID, + ICE_PTYPE_MDID_OFFSET = ICE_MDID_SIZE * ICE_PTYPE_MDID, + ICE_PACKET_LENGTH_MDID_OFFSET = ICE_MDID_SIZE * ICE_PACKET_LENGTH_MDID, + ICE_SOURCE_VSI_MDID_OFFSET = ICE_MDID_SIZE * ICE_SOURCE_VSI_MDID, + ICE_PKT_VLAN_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_VLAN_MDID, + ICE_PKT_TUNNEL_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_TUNNEL_MDID, + ICE_PKT_TCP_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_TCP_MDID, + ICE_PKT_ERROR_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_ERROR_MDID, +}; + +enum ice_pkt_flags { + ICE_PKT_FLAGS_MDID20 = 0, + ICE_PKT_FLAGS_MDID21 = 1, + ICE_PKT_FLAGS_MDID22 = 2, + ICE_PKT_FLAGS_MDID23 = 3, +}; + +struct ice_hw_metadata { + __be16 source_port; + __be16 ptype; + __be16 packet_length; + __be16 source_vsi; + __be16 flags[4]; +}; + +union ice_prot_hdr { + struct ice_ether_hdr eth_hdr; + struct ice_ethtype_hdr ethertype; + struct ice_vlan_hdr vlan_hdr; + struct ice_ipv4_hdr ipv4_hdr; + struct ice_ipv6_hdr ipv6_hdr; + struct ice_l4_hdr l4_hdr; + struct ice_sctp_hdr sctp_hdr; + struct ice_udp_tnl_hdr tnl_hdr; + struct ice_nvgre_hdr nvgre_hdr; + struct ice_udp_gtp_hdr gtp_hdr; + struct ice_pppoe_hdr pppoe_hdr; + struct ice_l2tpv3_sess_hdr l2tpv3_sess_hdr; + struct ice_hw_metadata metadata; +}; + +/* 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 */ + u16 field_off[ICE_MAX_CHAIN_WORDS]; + u16 field_mask[ICE_MAX_CHAIN_WORDS]; + + struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS]; + + /* Indicate field offsets that have field vector indices assigned */ + 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]; + u16 mask[ICE_NUM_WORDS_RECIPE]; +}; + +struct ice_recp_grp_entry { + struct list_head l_entry; + +#define ICE_INVAL_CHAIN_IND 0xFF + u16 rid; + u8 chain_idx; + u16 fv_idx[ICE_NUM_WORDS_RECIPE]; + u16 fv_mask[ICE_NUM_WORDS_RECIPE]; + struct ice_pref_recipe_group r_group; +}; +#endif /* _ICE_PROTOCOL_TYPE_H_ */ |