1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2018-2019 Hisilicon Limited. 3 */ 4 5 #ifndef _HNS3_RSS_H_ 6 #define _HNS3_RSS_H_ 7 #include <rte_ethdev.h> 8 #include <rte_flow.h> 9 10 #define HNS3_ETH_RSS_SUPPORT ( \ 11 ETH_RSS_FRAG_IPV4 | \ 12 ETH_RSS_NONFRAG_IPV4_TCP | \ 13 ETH_RSS_NONFRAG_IPV4_UDP | \ 14 ETH_RSS_NONFRAG_IPV4_SCTP | \ 15 ETH_RSS_NONFRAG_IPV4_OTHER | \ 16 ETH_RSS_FRAG_IPV6 | \ 17 ETH_RSS_NONFRAG_IPV6_TCP | \ 18 ETH_RSS_NONFRAG_IPV6_UDP | \ 19 ETH_RSS_NONFRAG_IPV6_SCTP | \ 20 ETH_RSS_NONFRAG_IPV6_OTHER) 21 22 #define HNS3_RSS_IND_TBL_SIZE 512 /* The size of hash lookup table */ 23 #define HNS3_RSS_KEY_SIZE 40 24 #define HNS3_RSS_CFG_TBL_NUM \ 25 (HNS3_RSS_IND_TBL_SIZE / HNS3_RSS_CFG_TBL_SIZE) 26 #define HNS3_RSS_SET_BITMAP_MSK 0xffff 27 28 #define HNS3_RSS_HASH_ALGO_TOEPLITZ 0 29 #define HNS3_RSS_HASH_ALGO_SIMPLE 1 30 #define HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP 2 31 #define HNS3_RSS_HASH_ALGO_MASK 0xf 32 33 #define HNS3_RSS_INPUT_TUPLE_OTHER GENMASK(3, 0) 34 #define HNS3_RSS_INPUT_TUPLE_SCTP GENMASK(4, 0) 35 #define HNS3_IP_FRAG_BIT_MASK GENMASK(3, 2) 36 #define HNS3_IP_OTHER_BIT_MASK GENMASK(1, 0) 37 38 struct hns3_rss_tuple_cfg { 39 uint8_t ipv4_tcp_en; /* Bit8.0~8.3 */ 40 uint8_t ipv4_udp_en; /* Bit9.0~9.3 */ 41 uint8_t ipv4_sctp_en; /* Bit10.0~10.4 */ 42 uint8_t ipv4_fragment_en; /* Bit11.0~11.3 */ 43 uint8_t ipv6_tcp_en; /* Bit12.0~12.3 */ 44 uint8_t ipv6_udp_en; /* Bit13.0~13.3 */ 45 uint8_t ipv6_sctp_en; /* Bit14.0~14.4 */ 46 uint8_t ipv6_fragment_en; /* Bit15.0~15.3 */ 47 }; 48 49 #define HNS3_RSS_QUEUES_BUFFER_NUM 64 /* Same as the Max rx/tx queue num */ 50 struct hns3_rss_conf { 51 /* RSS parameters :algorithm, flow_types, key, queue */ 52 struct rte_flow_action_rss conf; 53 uint8_t hash_algo; /* hash function type definited by hardware */ 54 uint8_t key[HNS3_RSS_KEY_SIZE]; /* Hash key */ 55 struct hns3_rss_tuple_cfg rss_tuple_sets; 56 uint8_t rss_indirection_tbl[HNS3_RSS_IND_TBL_SIZE]; /* Shadow table */ 57 uint16_t queue[HNS3_RSS_QUEUES_BUFFER_NUM]; /* Queues indices to use */ 58 }; 59 60 #ifndef ilog2 61 static inline int rss_ilog2(uint32_t x) 62 { 63 int log = 0; 64 x >>= 1; 65 66 while (x) { 67 log++; 68 x >>= 1; 69 } 70 return log; 71 } 72 #define ilog2(x) rss_ilog2(x) 73 #endif 74 75 static inline uint32_t fls(uint32_t x) 76 { 77 uint32_t position; 78 uint32_t i; 79 80 if (x == 0) 81 return 0; 82 83 for (i = (x >> 1), position = 0; i != 0; ++position) 84 i >>= 1; 85 86 return position + 1; 87 } 88 89 static inline uint32_t roundup_pow_of_two(uint32_t x) 90 { 91 return 1UL << fls(x - 1); 92 } 93 94 struct hns3_adapter; 95 96 int hns3_dev_rss_hash_update(struct rte_eth_dev *dev, 97 struct rte_eth_rss_conf *rss_conf); 98 int hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev, 99 struct rte_eth_rss_conf *rss_conf); 100 int hns3_dev_rss_reta_update(struct rte_eth_dev *dev, 101 struct rte_eth_rss_reta_entry64 *reta_conf, 102 uint16_t reta_size); 103 int hns3_dev_rss_reta_query(struct rte_eth_dev *dev, 104 struct rte_eth_rss_reta_entry64 *reta_conf, 105 uint16_t reta_size); 106 void hns3_set_default_rss_args(struct hns3_hw *hw); 107 int hns3_set_rss_indir_table(struct hns3_hw *hw, uint8_t *indir, uint16_t size); 108 int hns3_rss_reset_indir_table(struct hns3_hw *hw); 109 int hns3_config_rss(struct hns3_adapter *hns); 110 void hns3_rss_uninit(struct hns3_adapter *hns); 111 int hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw, 112 struct hns3_rss_tuple_cfg *tuple, 113 uint64_t rss_hf); 114 int hns3_set_rss_algo_key(struct hns3_hw *hw, const uint8_t *key); 115 int hns3_restore_rss_filter(struct rte_eth_dev *dev); 116 117 #endif /* _HNS3_RSS_H_ */ 118