#include <vppinfra/lock.h>
#include <vppinfra/valloc.h>
#include <svm/fifo_segment.h>
+#include <vnet/session/session_types.h>
typedef struct _segment_manager_props
{
u32 rx_fifo_size; /**< receive fifo size */
u32 tx_fifo_size; /**< transmit fifo size */
u32 evt_q_size; /**< event queue length */
- u32 segment_size; /**< first segment size */
u32 prealloc_fifos; /**< preallocated fifo pairs */
- u32 add_segment_size; /**< additional segment size */
+ uword segment_size; /**< first segment size */
+ uword add_segment_size; /**< additional segment size */
u8 add_segment:1; /**< can add new segments flag */
u8 use_mq_eventfd:1; /**< use eventfds for mqs flag */
u8 reserved:6; /**< reserved flags */
+ u8 n_slices; /**< number of fs slices/threads */
ssvm_segment_type_t segment_type; /**< seg type: if set to SSVM_N_TYPES,
private segments are used */
+ u32 max_fifo_size; /**< max fifo size */
+ u8 high_watermark; /**< memory usage high watermark % */
+ u8 low_watermark; /**< memory usage low watermark % */
+ u8 pct_first_alloc; /**< pct of fifo size to alloc */
} segment_manager_props_t;
typedef struct _segment_manager
* App event queue allocated in first segment
*/
svm_msg_q_t *event_queue;
+
+ u32 max_fifo_size;
+ u8 high_watermark;
+ u8 low_watermark;
} segment_manager_t;
typedef struct segment_manager_main_init_args_
#define SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0)
segment_manager_t *segment_manager_alloc (void);
-int segment_manager_init (segment_manager_t * sm, u32 first_seg_size,
- u32 prealloc_fifo_pairs);
+int segment_manager_init (segment_manager_t * sm);
/**
* Cleanup segment manager
segment_manager_t *segment_manager_get_if_valid (u32 index);
u32 segment_manager_index (segment_manager_t * sm);
-int segment_manager_add_segment (segment_manager_t * sm, u32 segment_size);
+int segment_manager_add_segment (segment_manager_t * sm, uword segment_size);
void segment_manager_del_segment (segment_manager_t * sm,
fifo_segment_t * fs);
fifo_segment_t *segment_manager_get_segment (segment_manager_t * sm,
void segment_manager_segment_writer_unlock (segment_manager_t * sm);
int segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo);
int segment_manager_try_alloc_fifos (fifo_segment_t * fs,
+ u32 thread_index,
u32 rx_fifo_size, u32 tx_fifo_size,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo);
void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo,
svm_fifo_t * tx_fifo);
+void segment_manager_detach_fifo (segment_manager_t * sm, svm_fifo_t * f);
+void segment_manager_attach_fifo (segment_manager_t * sm, svm_fifo_t * f,
+ session_t * s);
+
+void segment_manager_set_watermarks (segment_manager_t * sm,
+ u8 high_watermark, u8 low_watermark);
-/**
- * Grows fifo owned by segment manager
- *
- * @param sm segment manager that owns the fifo
- * @param f fifo to be grown
- * @param size amount of bytes to add to fifo
- * @return 0 on success, negative number otherwise
- */
-int segment_manager_grow_fifo (segment_manager_t * sm, svm_fifo_t * f,
- u32 size);
u8 segment_manager_has_fifos (segment_manager_t * sm);
svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs,