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net/hns3: support symmetric RSS

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This patch adds support of symmetric algorithm of RSS.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
This commit is contained in:
Lijun Ou 2020-07-01 19:54:33 +08:00 committed by Ferruh Yigit
parent 196dfa7703
commit 78b37190e0
3 changed files with 27 additions and 17 deletions
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12
drivers/net/hns3/hns3_flow.c
View File

@ -1287,6 +1287,7 @@ hns3_parse_rss_filter(struct rte_eth_dev *dev,
case RTE_ETH_HASH_FUNCTION_DEFAULT:
case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
break;
default:
return rte_flow_error_set(error, ENOTSUP,
@ -1365,6 +1366,9 @@ hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
*hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
break;
case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
*hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
break;
default:
hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
algo_func);
@ -1378,9 +1382,6 @@ hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
static int
hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
{
uint8_t hash_algo =
(hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
struct hns3_rss_tuple_cfg *tuple;
int ret;
@ -1388,11 +1389,12 @@ hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
hns3_parse_rss_key(hw, rss_config);
/* Parse hash algorithm */
ret = hns3_parse_rss_algorithm(hw, &rss_config->func, &hash_algo);
ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
&hw->rss_info.hash_algo);
if (ret)
return ret;
ret = hns3_set_rss_algo_key(hw, hash_algo, rss_config->key);
ret = hns3_set_rss_algo_key(hw, rss_config->key);
if (ret)
return ret;

27
drivers/net/hns3/hns3_rss.c
View File

@ -28,7 +28,7 @@ static const uint8_t hns3_hash_key[] = {
* Used to set algorithm, key_offset and hash key of rss.
*/
int
hns3_set_rss_algo_key(struct hns3_hw *hw, uint8_t hash_algo, const uint8_t *key)
hns3_set_rss_algo_key(struct hns3_hw *hw, const uint8_t *key)
{
#define HNS3_KEY_OFFSET_MAX 3
#define HNS3_SET_HASH_KEY_BYTE_FOUR 2
@ -51,7 +51,8 @@ hns3_set_rss_algo_key(struct hns3_hw *hw, uint8_t hash_algo, const uint8_t *key)
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_GENERIC_CONFIG,
false);
req->hash_config |= (hash_algo & HNS3_RSS_HASH_ALGO_MASK);
req->hash_config |=
(hw->rss_info.hash_algo & HNS3_RSS_HASH_ALGO_MASK);
req->hash_config |= (key_offset << HNS3_RSS_HASH_KEY_OFFSET_B);
if (key_offset == HNS3_SET_HASH_KEY_BYTE_FOUR)
@ -256,7 +257,6 @@ hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
struct hns3_rss_tuple_cfg *tuple = &hw->rss_info.rss_tuple_sets;
struct hns3_rss_conf *rss_cfg = &hw->rss_info;
uint8_t key_len = rss_conf->rss_key_len;
uint8_t algo;
uint64_t rss_hf = rss_conf->rss_hf;
uint8_t *key = rss_conf->rss_key;
int ret;
@ -292,9 +292,7 @@ hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
ret = -EINVAL;
goto conf_err;
}
algo = rss_cfg->conf.func == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR ?
HNS3_RSS_HASH_ALGO_SIMPLE : HNS3_RSS_HASH_ALGO_TOEPLITZ;
ret = hns3_set_rss_algo_key(hw, algo, key);
ret = hns3_set_rss_algo_key(hw, key);
if (ret)
goto conf_err;
}
@ -529,20 +527,29 @@ hns3_config_rss(struct hns3_adapter *hns)
{
struct hns3_hw *hw = &hns->hw;
struct hns3_rss_conf *rss_cfg = &hw->rss_info;
uint8_t hash_algo =
(hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
uint8_t *hash_key = rss_cfg->key;
int ret, ret1;
enum rte_eth_rx_mq_mode mq_mode = hw->data->dev_conf.rxmode.mq_mode;
switch (hw->rss_info.conf.func) {
case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
break;
case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
break;
default:
hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
break;
}
/* When RSS is off, redirect the packet queue 0 */
if (((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG) == 0)
hns3_rss_uninit(hns);
/* Configure RSS hash algorithm and hash key offset */
ret = hns3_set_rss_algo_key(hw, hash_algo, hash_key);
ret = hns3_set_rss_algo_key(hw, hash_key);
if (ret)
return ret;

5
drivers/net/hns3/hns3_rss.h
View File

@ -27,6 +27,7 @@
#define HNS3_RSS_HASH_ALGO_TOEPLITZ 0
#define HNS3_RSS_HASH_ALGO_SIMPLE 1
#define HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP 2
#define HNS3_RSS_HASH_ALGO_MASK 0xf
#define HNS3_RSS_INPUT_TUPLE_OTHER GENMASK(3, 0)
@ -49,6 +50,7 @@ struct hns3_rss_tuple_cfg {
struct hns3_rss_conf {
/* RSS parameters :algorithm, flow_types, key, queue */
struct rte_flow_action_rss conf;
uint8_t hash_algo; /* hash function type definited by hardware */
uint8_t key[HNS3_RSS_KEY_SIZE]; /* Hash key */
struct hns3_rss_tuple_cfg rss_tuple_sets;
uint8_t rss_indirection_tbl[HNS3_RSS_IND_TBL_SIZE]; /* Shadow table */
@ -109,8 +111,7 @@ void hns3_rss_uninit(struct hns3_adapter *hns);
int hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw,
struct hns3_rss_tuple_cfg *tuple,
uint64_t rss_hf);
int hns3_set_rss_algo_key(struct hns3_hw *hw, uint8_t hash_algo,
const uint8_t *key);
int hns3_set_rss_algo_key(struct hns3_hw *hw, const uint8_t *key);
int hns3_restore_rss_filter(struct rte_eth_dev *dev);
#endif /* _HNS3_RSS_H_ */