1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2021 Broadcom 3 * All rights reserved. 4 */ 5 6 #ifndef _BNXT_TUN_H_ 7 #define _BNXT_TUN_H_ 8 9 #include <inttypes.h> 10 #include <stdbool.h> 11 #include <sys/queue.h> 12 13 #include "rte_version.h" 14 #include "rte_ethdev.h" 15 16 #include "ulp_template_db_enum.h" 17 #include "ulp_template_struct.h" 18 19 #define BNXT_OUTER_TUN_FLOW(l3_tun, params) \ 20 ((l3_tun) && \ 21 ULP_BITMAP_ISSET((params)->act_bitmap.bits, \ 22 BNXT_ULP_ACT_BIT_JUMP)) 23 #define BNXT_INNER_TUN_SIGNATURE(l3_tun, l3_tun_decap, params) \ 24 ((l3_tun) && (l3_tun_decap) && \ 25 !ULP_BITMAP_ISSET((params)->hdr_bitmap.bits, \ 26 BNXT_ULP_HDR_BIT_O_ETH)) 27 28 #define BNXT_CACHE_INNER_TUN_FLOW(state, inner_tun_sig) \ 29 ((state) == BNXT_ULP_FLOW_STATE_NORMAL && (inner_tun_sig)) 30 #define BNXT_INNER_TUN_FLOW(state, inner_tun_sig) \ 31 ((state) == BNXT_ULP_FLOW_STATE_TUN_O_OFFLD && (inner_tun_sig)) 32 33 /* It is invalid to get another outer flow offload request 34 * for the same tunnel, while the outer flow is already offloaded. 35 */ 36 #define BNXT_REJECT_OUTER_TUN_FLOW(state, outer_tun_sig) \ 37 ((state) == BNXT_ULP_FLOW_STATE_TUN_O_OFFLD && (outer_tun_sig)) 38 39 #define ULP_TUN_O_DMAC_HDR_FIELD_INDEX 1 40 #define ULP_TUN_O_IPV4_DIP_INDEX 19 41 #define ULP_TUN_O_IPV6_DIP_INDEX 17 42 43 /* When a flow offload request comes the following state transitions 44 * happen based on the order in which the outer & inner flow offload 45 * requests arrive. 46 * 47 * If inner tunnel flow offload request arrives first then the flow 48 * state will remain in BNXT_ULP_FLOW_STATE_NORMAL state. 49 * The following outer tunnel flow offload request will change the 50 * state of the flow to BNXT_ULP_FLOW_STATE_TUN_O_OFFLD from 51 * BNXT_ULP_FLOW_STATE_NORMAL. 52 * 53 * If outer tunnel flow offload request arrives first then the flow state 54 * will change from BNXT_ULP_FLOW_STATE_NORMAL to 55 * BNXT_ULP_FLOW_STATE_TUN_O_OFFLD. 56 * 57 * Once the flow state is in BNXT_ULP_FLOW_STATE_TUN_O_OFFLD, any inner 58 * tunnel flow offload requests after that point will be treated as a 59 * normal flow and the tunnel flow state remains in 60 * BNXT_ULP_FLOW_STATE_TUN_O_OFFLD 61 */ 62 enum bnxt_ulp_tun_flow_state { 63 BNXT_ULP_FLOW_STATE_NORMAL = 0, 64 BNXT_ULP_FLOW_STATE_TUN_O_OFFLD, 65 }; 66 67 struct ulp_per_port_flow_info { 68 enum bnxt_ulp_tun_flow_state state; 69 uint32_t tun_i_cnt; 70 STAILQ_HEAD(, ulp_rte_parser_params) tun_i_prms_list; 71 }; 72 73 struct bnxt_tun_cache_entry { 74 bool t_dst_ip_valid; 75 uint8_t t_dmac[RTE_ETHER_ADDR_LEN]; 76 union { 77 rte_be32_t t_dst_ip; 78 uint8_t t_dst_ip6[16]; 79 }; 80 uint32_t outer_tun_flow_id; 81 uint16_t outer_tun_rej_cnt; 82 struct ulp_per_port_flow_info tun_flow_info[RTE_MAX_ETHPORTS]; 83 }; 84 85 void 86 ulp_tun_tbl_init(struct bnxt_tun_cache_entry *tun_tbl); 87 88 void 89 ulp_clear_tun_entry(struct bnxt_tun_cache_entry *tun_tbl, uint8_t tun_idx); 90 91 void 92 ulp_clear_tun_inner_entry(struct bnxt_tun_cache_entry *tun_tbl, uint32_t fid); 93 94 #endif 95