9a7d3af22c
The maximum number of queues for one TC hns3 PF PMD driver supported is 64 based on hns3 network engine with revision_id equals 0x21, while it is expanded up to 512 on hns3 network engine with revision_id equals 0x30. So the following points need to be modified to maintain better compatibility. 1) Using a extended rss_size_max field as the maximum queue number of one TC PF driver supported. 2) The data type of the RSS redirection table needs to be changed from uint8_t to uint16_t. 3) rss_tc_mode modification The bitwidth of tc_offset, meaning the rx queue index, has to expand from 10 bit to 11 bits. The tc_size, meaning the exponent with base 2 of queues supported on TC, needs to expand from 3 bits to 4 bits. 4) RSS indirection table modification Currently, a field with 7 bits width is used to record the queue index for RSS indirection table. It means that PF needs to expand the queue index field to 9 bits. As the RSS indirection table config command reserved 4 bytes to configure the RSS queue index, a extern field can be added. So an entries of RSS indirection table queue index has two fields to set: rss_result_l and rss_result_h, while rss_result_l records the lower 8 bits and rss_result_h records the higher 1 bit. In addition, 2~4 modifications is also compatible with hns3 VF PMD driver. Signed-off-by: Huisong Li <lihuisong@huawei.com> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018-2019 Hisilicon Limited.
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*/
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#ifndef _HNS3_RSS_H_
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#define _HNS3_RSS_H_
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#include <rte_ethdev.h>
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#include <rte_flow.h>
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#define HNS3_ETH_RSS_SUPPORT ( \
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ETH_RSS_FRAG_IPV4 | \
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ETH_RSS_NONFRAG_IPV4_TCP | \
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ETH_RSS_NONFRAG_IPV4_UDP | \
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ETH_RSS_NONFRAG_IPV4_SCTP | \
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ETH_RSS_NONFRAG_IPV4_OTHER | \
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ETH_RSS_FRAG_IPV6 | \
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ETH_RSS_NONFRAG_IPV6_TCP | \
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ETH_RSS_NONFRAG_IPV6_UDP | \
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ETH_RSS_NONFRAG_IPV6_SCTP | \
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ETH_RSS_NONFRAG_IPV6_OTHER | \
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ETH_RSS_L3_SRC_ONLY | \
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ETH_RSS_L3_DST_ONLY | \
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ETH_RSS_L4_SRC_ONLY | \
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ETH_RSS_L4_DST_ONLY)
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#define HNS3_RSS_IND_TBL_SIZE 512 /* The size of hash lookup table */
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#define HNS3_RSS_KEY_SIZE 40
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#define HNS3_RSS_CFG_TBL_NUM \
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(HNS3_RSS_IND_TBL_SIZE / HNS3_RSS_CFG_TBL_SIZE)
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#define HNS3_RSS_SET_BITMAP_MSK 0xffff
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#define HNS3_RSS_HASH_ALGO_TOEPLITZ 0
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#define HNS3_RSS_HASH_ALGO_SIMPLE 1
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#define HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP 2
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#define HNS3_RSS_HASH_ALGO_MASK 0xf
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struct hns3_rss_tuple_cfg {
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uint64_t rss_tuple_fields;
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};
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#define HNS3_RSS_QUEUES_BUFFER_NUM 64 /* Same as the Max rx/tx queue num */
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struct hns3_rss_conf {
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/* RSS parameters :algorithm, flow_types, key, queue */
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struct rte_flow_action_rss conf;
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uint8_t hash_algo; /* hash function type definited by hardware */
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uint8_t key[HNS3_RSS_KEY_SIZE]; /* Hash key */
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struct hns3_rss_tuple_cfg rss_tuple_sets;
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uint16_t rss_indirection_tbl[HNS3_RSS_IND_TBL_SIZE]; /* Shadow table */
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uint16_t queue[HNS3_RSS_QUEUES_BUFFER_NUM]; /* Queues indices to use */
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bool valid; /* check if RSS rule is valid */
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};
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#ifndef ilog2
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static inline int rss_ilog2(uint32_t x)
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{
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int log = 0;
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x >>= 1;
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while (x) {
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log++;
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x >>= 1;
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}
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return log;
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}
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#define ilog2(x) rss_ilog2(x)
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#endif
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static inline uint32_t fls(uint32_t x)
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{
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uint32_t position;
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uint32_t i;
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if (x == 0)
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return 0;
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for (i = (x >> 1), position = 0; i != 0; ++position)
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i >>= 1;
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return position + 1;
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}
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static inline uint32_t roundup_pow_of_two(uint32_t x)
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{
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return 1UL << fls(x - 1);
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}
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struct hns3_adapter;
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int hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
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struct rte_eth_rss_conf *rss_conf);
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int hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
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struct rte_eth_rss_conf *rss_conf);
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int hns3_dev_rss_reta_update(struct rte_eth_dev *dev,
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struct rte_eth_rss_reta_entry64 *reta_conf,
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uint16_t reta_size);
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int hns3_dev_rss_reta_query(struct rte_eth_dev *dev,
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struct rte_eth_rss_reta_entry64 *reta_conf,
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uint16_t reta_size);
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void hns3_set_default_rss_args(struct hns3_hw *hw);
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int hns3_set_rss_indir_table(struct hns3_hw *hw, uint16_t *indir,
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uint16_t size);
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int hns3_rss_reset_indir_table(struct hns3_hw *hw);
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int hns3_config_rss(struct hns3_adapter *hns);
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void hns3_rss_uninit(struct hns3_adapter *hns);
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int hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw,
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struct hns3_rss_tuple_cfg *tuple,
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uint64_t rss_hf);
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int hns3_set_rss_algo_key(struct hns3_hw *hw, const uint8_t *key);
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int hns3_restore_rss_filter(struct rte_eth_dev *dev);
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#endif /* _HNS3_RSS_H_ */
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