1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018-2021 HiSilicon Limited.
7 #include <rte_ethdev.h>
10 #define HNS3_ETH_RSS_SUPPORT ( \
12 ETH_RSS_NONFRAG_IPV4_TCP | \
13 ETH_RSS_NONFRAG_IPV4_UDP | \
14 ETH_RSS_NONFRAG_IPV4_SCTP | \
15 ETH_RSS_NONFRAG_IPV4_OTHER | \
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 ETH_RSS_L3_SRC_ONLY | \
22 ETH_RSS_L3_DST_ONLY | \
23 ETH_RSS_L4_SRC_ONLY | \
26 #define HNS3_RSS_IND_TBL_SIZE 512 /* The size of hash lookup table */
27 #define HNS3_RSS_IND_TBL_SIZE_MAX 2048
28 #define HNS3_RSS_KEY_SIZE 40
29 #define HNS3_RSS_SET_BITMAP_MSK 0xffff
31 #define HNS3_RSS_HASH_ALGO_TOEPLITZ 0
32 #define HNS3_RSS_HASH_ALGO_SIMPLE 1
33 #define HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP 2
34 #define HNS3_RSS_HASH_ALGO_MASK 0xf
36 struct hns3_rss_tuple_cfg {
37 uint64_t rss_tuple_fields;
40 #define HNS3_RSS_QUEUES_BUFFER_NUM 64 /* Same as the Max rx/tx queue num */
41 struct hns3_rss_conf {
42 /* RSS parameters :algorithm, flow_types, key, queue */
43 struct rte_flow_action_rss conf;
44 uint8_t hash_algo; /* hash function type definited by hardware */
45 uint8_t key[HNS3_RSS_KEY_SIZE]; /* Hash key */
46 struct hns3_rss_tuple_cfg rss_tuple_sets;
47 uint16_t rss_indirection_tbl[HNS3_RSS_IND_TBL_SIZE_MAX];
48 uint16_t queue[HNS3_RSS_QUEUES_BUFFER_NUM]; /* Queues indices to use */
49 bool valid; /* check if RSS rule is valid */
51 * For IPv6 SCTP packets type, check whether the NIC hardware support
52 * RSS hash using the src/dst port as the input tuple. For Kunpeng920
53 * NIC hardware, it is not supported
55 bool ipv6_sctp_offload_supported;
59 static inline int rss_ilog2(uint32_t x)
70 #define ilog2(x) rss_ilog2(x)
73 static inline uint32_t fls(uint32_t x)
81 for (i = (x >> 1), position = 0; i != 0; ++position)
87 static inline uint32_t roundup_pow_of_two(uint32_t x)
89 return 1UL << fls(x - 1);
94 int hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
95 struct rte_eth_rss_conf *rss_conf);
96 int hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
97 struct rte_eth_rss_conf *rss_conf);
98 int hns3_dev_rss_reta_update(struct rte_eth_dev *dev,
99 struct rte_eth_rss_reta_entry64 *reta_conf,
101 int hns3_dev_rss_reta_query(struct rte_eth_dev *dev,
102 struct rte_eth_rss_reta_entry64 *reta_conf,
104 void hns3_rss_set_default_args(struct hns3_hw *hw);
105 int hns3_set_rss_indir_table(struct hns3_hw *hw, uint16_t *indir,
107 int hns3_rss_reset_indir_table(struct hns3_hw *hw);
108 int hns3_config_rss(struct hns3_adapter *hns);
109 void hns3_rss_uninit(struct hns3_adapter *hns);
110 int hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw,
111 struct hns3_rss_tuple_cfg *tuple,
113 int hns3_rss_set_algo_key(struct hns3_hw *hw, const uint8_t *key);
114 int hns3_restore_rss_filter(struct rte_eth_dev *dev);
116 #endif /* _HNS3_RSS_H_ */