net/mlx: do not enforce RSS hash offload

[dpdk.git] / drivers / net / mlx5 / mlx5_utils.h

diff --git a/drivers/net/mlx5/mlx5_utils.h b/drivers/net/mlx5/mlx5_utils.h
index 97d931f..ca9bb76 100644 (file)
--- a/drivers/net/mlx5/mlx5_utils.h
+++ b/drivers/net/mlx5/mlx5_utils.h
@@ -35,10 +35,6 @@ extern int mlx5_logtype;
                __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)
@@ -122,29 +118,41 @@ struct mlx5_l3t_level_tbl {
 struct mlx5_l3t_entry_word {
        uint32_t idx; /* Table index. */
        uint64_t ref_cnt; /* Table ref_cnt. */
-       uint16_t entry[]; /* Entry array. */
-};
+       struct {
+               uint16_t data;
+               uint32_t ref_cnt;
+       } entry[MLX5_L3T_ET_SIZE]; /* Entry array */
+} __rte_packed;
 
 /* 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. */
-};
+       struct {
+               uint32_t data;
+               int32_t ref_cnt;
+       } entry[MLX5_L3T_ET_SIZE]; /* Entry array */
+} __rte_packed;
 
 /* 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. */
-};
+       struct {
+               uint64_t data;
+               uint32_t ref_cnt;
+       } entry[MLX5_L3T_ET_SIZE]; /* Entry array */
+} __rte_packed;
 
 /* 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. */
-};
+       struct {
+               void *data;
+               uint32_t ref_cnt;
+       } entry[MLX5_L3T_ET_SIZE]; /* Entry array */
+} __rte_packed;
 
 /* L3 table data structure. */
 struct mlx5_l3t_tbl {
@@ -152,8 +160,13 @@ struct mlx5_l3t_tbl {
        struct mlx5_indexed_pool *eip;
        /* Table index pool handles. */
        struct mlx5_l3t_level_tbl *tbl; /* Global table index. */
+       rte_spinlock_t sl; /* The table lock. */
 };
 
+/** Type of function that is used to handle the data before freeing. */
+typedef int32_t (*mlx5_l3t_alloc_callback_fn)(void *ctx,
+                                          union mlx5_l3t_data *data);
+
 /*
  * 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
@@ -539,32 +552,68 @@ void mlx5_l3t_destroy(struct mlx5_l3t_tbl *tbl);
  *   0 if success, -1 on error.
  */
 
-uint32_t mlx5_l3t_get_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
+int32_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.
+ * This function gets the index entry from Three-level table.
+ *
+ * If the index entry is not available, allocate new one by callback
+ * function and fill in the entry.
  *
  * @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.
+ * @param cb
+ *   Callback function to allocate new data.
+ * @param ctx
+ *   Context for callback function.
+ *
+ * @return
+ *   0 if success, -1 on error.
  */
-void mlx5_l3t_clear_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx);
+
+int32_t mlx5_l3t_prepare_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
+                              union mlx5_l3t_data *data,
+                              mlx5_l3t_alloc_callback_fn cb, void *ctx);
 
 /**
- * This function gets the index entry from Three-level table.
+ * This function decreases and clear index entry if reference
+ * counter is 0 from Three-level table.
  *
  * @param tbl
  *   Pointer to the l3t.
  * @param idx
  *   Index to the entry.
- * @param data
+ *
+ * @return
+ *   The remaining reference count, 0 means entry be cleared, -1 on error.
+ */
+int32_t mlx5_l3t_clear_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx);
+
+/**
+ * This function sets the index entry to Three-level table.
+ * If the entry is already set, the EEXIST errno will be given, and
+ * the set data will be filled to the data.
+ *
+ * @param tbl[in]
+ *   Pointer to the l3t.
+ * @param idx[in]
+ *   Index to the entry.
+ * @param data[in/out]
  *   Pointer to the memory which contains the entry data save to l3t.
+ *   If the entry is already set, the set data will be filled.
  *
  * @return
  *   0 if success, -1 on error.
  */
-uint32_t mlx5_l3t_set_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
+int32_t mlx5_l3t_set_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
                            union mlx5_l3t_data *data);
 
 /*