} svm_fifo_segment_freelist_t;
#define FIFO_SEGMENT_MIN_FIFO_SIZE 4096
-#define FIFO_SEGMENT_MAX_FIFO_SIZE (8<<20) /* 8mb max fifo size */
+#define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) /* 2GB max fifo size */
#define FIFO_SEGMENT_ALLOC_CHUNK_SIZE 32 /* Allocation quantum */
-#define FIFO_SEGMENT_F_IS_PRIVATE 1 << 0 /* Private segment */
-#define FIFO_SEGMENT_F_IS_MAIN_HEAP 1 << 1 /* Segment is main heap */
-#define FIFO_SEGMENT_F_IS_PREALLOCATED 1 << 2 /* Segment is preallocated */
+#define FIFO_SEGMENT_F_IS_PREALLOCATED (1 << 0)
+#define FIFO_SEGMENT_F_WILL_DELETE (1 << 1)
typedef struct
{
svm_fifo_t *fifos; /**< Linked list of active RX fifos */
- u8 *segment_name; /**< Segment name */
svm_fifo_t **free_fifos; /**< Freelists, by fifo size */
u32 n_active_fifos; /**< Number of active fifos */
u8 flags; /**< Segment flags */
u32 timeout_in_seconds;
} svm_fifo_segment_main_t;
-extern svm_fifo_segment_main_t svm_fifo_segment_main;
-
typedef struct
{
+ ssvm_segment_type_t segment_type;
char *segment_name;
u32 segment_size;
u32 *new_segment_indices;
- u32 rx_fifo_size;
- u32 tx_fifo_size;
- u32 preallocated_fifo_pairs;
- u32 private_segment_count;
+ int memfd_fd;
} svm_fifo_segment_create_args_t;
+#define svm_fifo_segment_flags(_seg) _seg->h->flags
+
static inline svm_fifo_segment_private_t *
-svm_fifo_segment_get_segment (u32 segment_index)
+svm_fifo_segment_get_segment (svm_fifo_segment_main_t * sm, u32 segment_index)
{
- svm_fifo_segment_main_t *ssm = &svm_fifo_segment_main;
- return vec_elt_at_index (ssm->segments, segment_index);
+ return pool_elt_at_index (sm->segments, segment_index);
}
static inline u8
return fifo_segment->h->fifos;
}
-#define foreach_ssvm_fifo_segment_api_error \
-_(OUT_OF_SPACE, "Out of space in segment", -200)
-
-typedef enum
-{
-#define _(n,s,c) SSVM_FIFO_SEGMENT_API_ERROR_##n = c,
- foreach_ssvm_fifo_segment_api_error
-#undef _
-} ssvm_fifo_segment_api_error_enum_t;
-
-int svm_fifo_segment_create (svm_fifo_segment_create_args_t * a);
-int svm_fifo_segment_create_process_private (svm_fifo_segment_create_args_t
- * a);
-int svm_fifo_segment_attach (svm_fifo_segment_create_args_t * a);
-void svm_fifo_segment_delete (svm_fifo_segment_private_t * s);
+int svm_fifo_segment_init (svm_fifo_segment_private_t * s);
+int svm_fifo_segment_create (svm_fifo_segment_main_t * sm,
+ svm_fifo_segment_create_args_t * a);
+int svm_fifo_segment_create_process_private (svm_fifo_segment_main_t * sm,
+ svm_fifo_segment_create_args_t
+ *);
+void svm_fifo_segment_preallocate_fifo_pairs (svm_fifo_segment_private_t * s,
+ u32 rx_fifo_size,
+ u32 tx_fifo_size,
+ u32 * n_fifo_pairs);
+int svm_fifo_segment_attach (svm_fifo_segment_main_t * sm,
+ svm_fifo_segment_create_args_t * a);
+void svm_fifo_segment_delete (svm_fifo_segment_main_t * sm,
+ svm_fifo_segment_private_t * s);
svm_fifo_t *svm_fifo_segment_alloc_fifo (svm_fifo_segment_private_t * s,
u32 data_size_in_bytes,
void svm_fifo_segment_free_fifo (svm_fifo_segment_private_t * s,
svm_fifo_t * f,
svm_fifo_segment_freelist_t index);
-void svm_fifo_segment_init (u64 baseva, u32 timeout_in_seconds);
-u32 svm_fifo_segment_index (svm_fifo_segment_private_t * s);
+void svm_fifo_segment_main_init (svm_fifo_segment_main_t * sm, u64 baseva,
+ u32 timeout_in_seconds);
+u32 svm_fifo_segment_index (svm_fifo_segment_main_t * sm,
+ svm_fifo_segment_private_t * s);
u32 svm_fifo_segment_num_fifos (svm_fifo_segment_private_t * fifo_segment);
u32 svm_fifo_segment_num_free_fifos (svm_fifo_segment_private_t *
fifo_segment, u32 fifo_size_in_bytes);
+void svm_fifo_segment_info (svm_fifo_segment_private_t * seg, char **address,
+ size_t * size);
+
+svm_fifo_segment_private_t
+ * svm_fifo_segment_segments_pool (svm_fifo_segment_main_t * sm);
-svm_fifo_segment_private_t *svm_fifo_segment_segments_pool (void);
format_function_t format_svm_fifo_segment;
+format_function_t format_svm_fifo_segment_type;
#endif /* __included_ssvm_fifo_segment_h__ */