#ifndef __included_ssvm_fifo_segment_h__
#define __included_ssvm_fifo_segment_h__
-#include <svm/svm_fifo.h>
#include <svm/ssvm.h>
+#include <svm/svm_fifo.h>
#include <vppinfra/lock.h>
+typedef enum
+{
+ FIFO_SEGMENT_FREELIST_NONE = -1,
+ FIFO_SEGMENT_RX_FREELIST = 0,
+ FIFO_SEGMENT_TX_FREELIST,
+ FIFO_SEGMENT_N_FREELISTS
+} 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_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_WILL_DELETE 1 << 3 /* Segment will be removed */
+
typedef struct
{
- volatile svm_fifo_t **fifos;
- u8 *segment_name;
+ svm_fifo_t *fifos; /**< Linked list of active RX fifos */
+ svm_fifo_t **free_fifos; /**< Freelists, by fifo size */
+ u32 n_active_fifos; /**< Number of active fifos */
+ u8 flags; /**< Segment flags */
} svm_fifo_segment_header_t;
typedef struct
typedef struct
{
+ ssvm_segment_type_t segment_type;
char *segment_name;
u32 segment_size;
- u32 new_segment_index;
+ u32 *new_segment_indices;
+ u32 rx_fifo_size;
+ u32 tx_fifo_size;
+ u32 preallocated_fifo_pairs;
+ u32 private_segment_count;
+ u32 seg_protected_space;
+ int memfd_fd;
} svm_fifo_segment_create_args_t;
static inline svm_fifo_segment_private_t *
-svm_fifo_get_segment (u32 segment_index)
+svm_fifo_segment_get_segment (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 (ssm->segments, segment_index);
}
static inline u8
svm_fifo_segment_has_fifos (svm_fifo_segment_private_t * fifo_segment)
{
- return vec_len ((svm_fifo_t **) fifo_segment->h->fifos) != 0;
+ return fifo_segment->h->fifos != 0;
}
-static inline svm_fifo_t **
-svm_fifo_segment_get_fifos (svm_fifo_segment_private_t * fifo_segment)
+static inline svm_fifo_t *
+svm_fifo_segment_get_fifo_list (svm_fifo_segment_private_t * fifo_segment)
{
- return (svm_fifo_t **) fifo_segment->h->fifos;
+ return fifo_segment->h->fifos;
}
#define foreach_ssvm_fifo_segment_api_error \
void svm_fifo_segment_delete (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);
+ u32 data_size_in_bytes,
+ svm_fifo_segment_freelist_t index);
void svm_fifo_segment_free_fifo (svm_fifo_segment_private_t * s,
- svm_fifo_t * f);
+ 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);
+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, uword * address,
+ u64 * size);
+
+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__ */