#include "mlx5_defs.h"
-/*
- * Compilation workaround for PPC64 when AltiVec is fully enabled, e.g. std=c11.
- * Otherwise there would be a type conflict between stdbool and altivec.
- */
-#if defined(__PPC64__) && !defined(__APPLE_ALTIVEC__)
-#undef bool
-/* redefine as in stdbool.h */
-#define bool _Bool
-#endif
-
/* Convert a bit number to the corresponding 64-bit mask */
#define MLX5_BITSHIFT(v) (UINT64_C(1) << (v))
__VA_ARGS__ PMD_DRV_LOG_STRIP PMD_DRV_LOG_OPAREN, \
PMD_DRV_LOG_CPAREN)
-#define INFO(...) DRV_LOG(INFO, __VA_ARGS__)
-#define WARN(...) DRV_LOG(WARNING, __VA_ARGS__)
-#define ERROR(...) DRV_LOG(ERR, __VA_ARGS__)
-
/* Convenience macros for accessing mbuf fields. */
#define NEXT(m) ((m)->next)
#define DATA_LEN(m) ((m)->data_len)
(((val) & (from)) / ((from) / (to))) : \
(((val) & (from)) * ((to) / (from))))
+/*
+ * For the case which data is linked with sequence increased index, the
+ * array table will be more efficiect than hash table once need to serarch
+ * one data entry in large numbers of entries. Since the traditional hash
+ * tables has fixed table size, when huge numbers of data saved to the hash
+ * table, it also comes lots of hash conflict.
+ *
+ * But simple array table also has fixed size, allocates all the needed
+ * memory at once will waste lots of memory. For the case don't know the
+ * exactly number of entries will be impossible to allocate the array.
+ *
+ * Then the multiple level table helps to balance the two disadvantages.
+ * Allocate a global high level table with sub table entries at first,
+ * the global table contains the sub table entries, and the sub table will
+ * be allocated only once the corresponding index entry need to be saved.
+ * e.g. for up to 32-bits index, three level table with 10-10-12 splitting,
+ * with sequence increased index, the memory grows with every 4K entries.
+ *
+ * The currently implementation introduces 10-10-12 32-bits splitting
+ * Three-Level table to help the cases which have millions of enties to
+ * save. The index entries can be addressed directly by the index, no
+ * search will be needed.q
+ */
+
+/* L3 table global table define. */
+#define MLX5_L3T_GT_OFFSET 22
+#define MLX5_L3T_GT_SIZE (1 << 10)
+#define MLX5_L3T_GT_MASK (MLX5_L3T_GT_SIZE - 1)
+
+/* L3 table middle table define. */
+#define MLX5_L3T_MT_OFFSET 12
+#define MLX5_L3T_MT_SIZE (1 << 10)
+#define MLX5_L3T_MT_MASK (MLX5_L3T_MT_SIZE - 1)
+
+/* L3 table entry table define. */
+#define MLX5_L3T_ET_OFFSET 0
+#define MLX5_L3T_ET_SIZE (1 << 12)
+#define MLX5_L3T_ET_MASK (MLX5_L3T_ET_SIZE - 1)
+
+/* L3 table type. */
+enum mlx5_l3t_type {
+ MLX5_L3T_TYPE_WORD = 0,
+ MLX5_L3T_TYPE_DWORD,
+ MLX5_L3T_TYPE_QWORD,
+ MLX5_L3T_TYPE_PTR,
+ MLX5_L3T_TYPE_MAX,
+};
+
+struct mlx5_indexed_pool;
+
+/* Generic data struct. */
+union mlx5_l3t_data {
+ uint16_t word;
+ uint32_t dword;
+ uint64_t qword;
+ void *ptr;
+};
+
+/* L3 level table data structure. */
+struct mlx5_l3t_level_tbl {
+ uint64_t ref_cnt; /* Table ref_cnt. */
+ void *tbl[]; /* Table array. */
+};
+
+/* L3 word entry table data structure. */
+struct mlx5_l3t_entry_word {
+ uint32_t idx; /* Table index. */
+ uint64_t ref_cnt; /* Table ref_cnt. */
+ uint16_t entry[]; /* Entry array. */
+};
+
+/* L3 double word entry table data structure. */
+struct mlx5_l3t_entry_dword {
+ uint32_t idx; /* Table index. */
+ uint64_t ref_cnt; /* Table ref_cnt. */
+ uint32_t entry[]; /* Entry array. */
+};
+
+/* L3 quad word entry table data structure. */
+struct mlx5_l3t_entry_qword {
+ uint32_t idx; /* Table index. */
+ uint64_t ref_cnt; /* Table ref_cnt. */
+ uint64_t entry[]; /* Entry array. */
+};
+
+/* L3 pointer entry table data structure. */
+struct mlx5_l3t_entry_ptr {
+ uint32_t idx; /* Table index. */
+ uint64_t ref_cnt; /* Table ref_cnt. */
+ void *entry[]; /* Entry array. */
+};
+
+/* L3 table data structure. */
+struct mlx5_l3t_tbl {
+ enum mlx5_l3t_type type; /* Table type. */
+ struct mlx5_indexed_pool *eip;
+ /* Table index pool handles. */
+ struct mlx5_l3t_level_tbl *tbl; /* Global table index. */
+};
+
/*
* The indexed memory entry index is made up of trunk index and offset of
* the entry in the trunk. Since the entry index is 32 bits, in case user
*/
uint32_t need_lock:1;
/* Lock is needed for multiple thread usage. */
+ uint32_t release_mem_en:1; /* Rlease trunk when it is free. */
const char *type; /* Memory allocate type name. */
- void *(*malloc)(const char *type, size_t size, unsigned int align,
+ void *(*malloc)(uint32_t flags, size_t size, unsigned int align,
int socket);
/* User defined memory allocator. */
void (*free)(void *addr); /* User defined memory release. */
uint32_t next; /* Next free trunk in free list. */
uint32_t free; /* Free entries available */
struct rte_bitmap *bmp;
- uint8_t data[] __rte_cache_min_aligned; /* Entry data start. */
+ uint8_t data[] __rte_cache_aligned; /* Entry data start. */
};
struct mlx5_indexed_pool {
/** Type of function that is used to handle the data before freeing. */
typedef void (*mlx5_hlist_destroy_callback_fn)(void *p, void *ctx);
+/**
+ * Type of function for user defined matching.
+ *
+ * @param entry
+ * The entry in the list.
+ * @param ctx
+ * The pointer to new entry context.
+ *
+ * @return
+ * 0 if matching, -1 otherwise.
+ */
+typedef int (*mlx5_hlist_match_callback_fn)(struct mlx5_hlist_entry *entry,
+ void *ctx);
+
/** hash list table structure */
struct mlx5_hlist {
char name[MLX5_HLIST_NAMESIZE]; /**< Name of the hash list. */
*/
int mlx5_hlist_insert(struct mlx5_hlist *h, struct mlx5_hlist_entry *entry);
+/**
+ * Extended routine to search an entry matching the context with
+ * user defined match function.
+ *
+ * @param h
+ * Pointer to the hast list table.
+ * @param key
+ * Key for the searching entry.
+ * @param cb
+ * Callback function to match the node with context.
+ * @param ctx
+ * Common context parameter used by callback function.
+ *
+ * @return
+ * Pointer of the hlist entry if found, NULL otherwise.
+ */
+struct mlx5_hlist_entry *mlx5_hlist_lookup_ex(struct mlx5_hlist *h,
+ uint64_t key,
+ mlx5_hlist_match_callback_fn cb,
+ void *ctx);
+
+/**
+ * Extended routine to insert an entry to the list with key collisions.
+ *
+ * For the list have key collision, the extra user defined match function
+ * allows node with same key will be inserted.
+ *
+ * @param h
+ * Pointer to the hast list table.
+ * @param entry
+ * Entry to be inserted into the hash list table.
+ * @param cb
+ * Callback function to match the node with context.
+ * @param ctx
+ * Common context parameter used by callback function.
+ *
+ * @return
+ * - zero for success.
+ * - -EEXIST if the entry is already inserted.
+ */
+int mlx5_hlist_insert_ex(struct mlx5_hlist *h, struct mlx5_hlist_entry *entry,
+ mlx5_hlist_match_callback_fn cb, void *ctx);
+
/**
* Remove an entry from the hash list table. User should guarantee the validity
* of the entry.
*/
void mlx5_ipool_dump(struct mlx5_indexed_pool *pool);
+/**
+ * This function allocates new empty Three-level table.
+ *
+ * @param type
+ * The l3t can set as word, double word, quad word or pointer with index.
+ *
+ * @return
+ * - Pointer to the allocated l3t.
+ * - NULL on error. Not enough memory, or invalid arguments.
+ */
+struct mlx5_l3t_tbl *mlx5_l3t_create(enum mlx5_l3t_type type);
+
+/**
+ * This function destroys Three-level table.
+ *
+ * @param tbl
+ * Pointer to the l3t.
+ */
+void mlx5_l3t_destroy(struct mlx5_l3t_tbl *tbl);
+
+/**
+ * This function gets the index entry from Three-level table.
+ *
+ * @param tbl
+ * Pointer to the l3t.
+ * @param idx
+ * Index to the entry.
+ * @param data
+ * Pointer to the memory which saves the entry data.
+ * When function call returns 0, data contains the entry data get from
+ * l3t.
+ * When function call returns -1, data is not modified.
+ *
+ * @return
+ * 0 if success, -1 on error.
+ */
+
+uint32_t mlx5_l3t_get_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
+ union mlx5_l3t_data *data);
+/**
+ * This function clears the index entry from Three-level table.
+ *
+ * @param tbl
+ * Pointer to the l3t.
+ * @param idx
+ * Index to the entry.
+ */
+void mlx5_l3t_clear_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx);
+
+/**
+ * This function gets the index entry from Three-level table.
+ *
+ * @param tbl
+ * Pointer to the l3t.
+ * @param idx
+ * Index to the entry.
+ * @param data
+ * Pointer to the memory which contains the entry data save to l3t.
+ *
+ * @return
+ * 0 if success, -1 on error.
+ */
+uint32_t mlx5_l3t_set_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
+ union mlx5_l3t_data *data);
+
/*
* Macros for linked list based on indexed memory.
* Example data structure:
git.droids-corp.org / dpdk.git / blobdiff