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ethdev: add hash configuration

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In order to support hash filter configuration, filter type of hash
is added, also the corresponding structures, macros and definitions
are added.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Helin Zhang 2015-01-22 15:36:57 +08:00 committed by Thomas Monjalon
parent d0f2f39bf4
commit a98ff8a3c3
1 changed files with 63 additions and 0 deletions
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63
lib/librte_ether/rte_eth_ctrl.h
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@ -55,6 +55,7 @@ enum rte_filter_type {
RTE_ETH_FILTER_ETHERTYPE,
RTE_ETH_FILTER_TUNNEL,
RTE_ETH_FILTER_FDIR,
RTE_ETH_FILTER_HASH,
RTE_ETH_FILTER_MAX
};
@ -449,6 +450,68 @@ struct rte_eth_fdir_stats {
uint32_t best_cnt; /**< Number of filters in best effort spaces. */
};
/**
* Hash filter information types.
* - RTE_ETH_HASH_FILTER_SYM_HASH_ENA_PER_PORT is for getting/setting the
* information/configuration of 'symmetric hash enable' per port.
* - RTE_ETH_HASH_FILTER_GLOBAL_CONFIG is for getting/setting the global
* configurations of hash filters. Those global configurations are valid
* for all ports of the same NIC.
*/
enum rte_eth_hash_filter_info_type {
RTE_ETH_HASH_FILTER_INFO_TYPE_UNKNOWN = 0,
/** Symmetric hash enable per port */
RTE_ETH_HASH_FILTER_SYM_HASH_ENA_PER_PORT,
/** Configure globally for hash filter */
RTE_ETH_HASH_FILTER_GLOBAL_CONFIG,
RTE_ETH_HASH_FILTER_INFO_TYPE_MAX,
};
/**
* Hash function types.
*/
enum rte_eth_hash_function {
RTE_ETH_HASH_FUNCTION_DEFAULT = 0,
RTE_ETH_HASH_FUNCTION_TOEPLITZ, /**< Toeplitz */
RTE_ETH_HASH_FUNCTION_SIMPLE_XOR, /**< Simple XOR */
RTE_ETH_HASH_FUNCTION_MAX,
};
#define UINT32_BIT (CHAR_BIT * sizeof(uint32_t))
#define RTE_SYM_HASH_MASK_ARRAY_SIZE \
(RTE_ALIGN(RTE_ETH_FLOW_TYPE_MAX, UINT32_BIT)/UINT32_BIT)
/**
* A structure used to set or get global hash function configurations which
* include symmetric hash enable per flow type and hash function type.
* Each bit in sym_hash_enable_mask[] indicates if the symmetric hash of the
* coresponding flow type is enabled or not.
* Each bit in valid_bit_mask[] indicates if the corresponding bit in
* sym_hash_enable_mask[] is valid or not. For the configurations gotten, it
* also means if the flow type is supported by hardware or not.
*/
struct rte_eth_hash_global_conf {
enum rte_eth_hash_function hash_func; /**< Hash function type */
/** Bit mask for symmetric hash enable per flow type */
uint32_t sym_hash_enable_mask[RTE_SYM_HASH_MASK_ARRAY_SIZE];
/** Bit mask indicates if the corresponding bit is valid */
uint32_t valid_bit_mask[RTE_SYM_HASH_MASK_ARRAY_SIZE];
};
/**
* A structure used to set or get hash filter information, to support filter
* type of 'RTE_ETH_FILTER_HASH' and its operations.
*/
struct rte_eth_hash_filter_info {
enum rte_eth_hash_filter_info_type info_type; /**< Information type */
/** Details of hash filter information */
union {
/** For RTE_ETH_HASH_FILTER_SYM_HASH_ENA_PER_PORT */
uint8_t enable;
/** Global configurations of hash filter */
struct rte_eth_hash_global_conf global_conf;
} info;
};
#ifdef __cplusplus
}
#endif