#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 */
+ u32 prealloc_fifo_hdrs; /**< preallocated fifo hdrs */
+ 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 enum seg_manager_flag_
+{
+ SEG_MANAGER_F_DETACHED = 1 << 0,
+ SEG_MANAGER_F_DETACHED_LISTENER = 1 << 1,
+} seg_manager_flag_t;
+
typedef struct _segment_manager
{
/** Pool of segments allocated by this manager */
* App event queue allocated in first segment
*/
svm_msg_q_t *event_queue;
-} segment_manager_t;
-typedef struct segment_manager_main_init_args_
-{
- u64 baseva;
- u64 size;
-} segment_manager_main_init_args_t;
+ u8 flags;
+
+ u32 max_fifo_size;
+ u8 high_watermark;
+ u8 low_watermark;
+} segment_manager_t;
#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);
+int segment_manager_init_first (segment_manager_t * sm);
/**
* Cleanup segment manager
* @param sm segment manager to be freed
*/
void segment_manager_free (segment_manager_t * sm);
+void segment_manager_free_safe (segment_manager_t *sm);
/**
* Initiate segment manager cleanup
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,
+ u8 notify_app);
void segment_manager_del_segment (segment_manager_t * sm,
fifo_segment_t * fs);
+void segment_manager_lock_and_del_segment (segment_manager_t * sm,
+ u32 fs_index);
fifo_segment_t *segment_manager_get_segment (segment_manager_t * sm,
u32 segment_index);
fifo_segment_t *segment_manager_get_segment_w_handle (u64 sh);
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);
-/**
- * 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);
+void segment_manager_set_watermarks (segment_manager_t * sm,
+ u8 high_watermark, u8 low_watermark);
-/**
- * Request to shrink fifo owned by segment manager
- *
- * If this is not called by the producer, no attempt is made to reduce the
- * size until the producer tries to enqueue more data. To collect the chunks
- * that are to be removed call @ref segment_manager_collect_fifo_chunks
- *
- * Size reduction does not affect fifo chunk boundaries. Therefore chunks are
- * not split and the amount of bytes to be removed can be equal to or less
- * than what was requested.
- *
- * @param sm segment manager that owns the fifo
- * @param f fifo to be shrunk
- * @param size amount of bytes to remove from fifo
- * @param is_producer flag that indicates is caller is the producer for the
- * fifo.
- * @return actual number of bytes to be removed
- */
-int segment_manager_shrink_fifo (segment_manager_t * sm, svm_fifo_t * f,
- u32 size, u8 is_producer);
-
-/**
- * Collect fifo chunks that are no longer used
- *
- * This should not be called unless SVM_FIFO_F_COLLECT_CHUNKS is set for
- * the fifo. The chunks are returned to the fifo segment freelist.
- *
- * @param sm segment manager that owns the fifo
- * @param f fifo whose chunks are to be collected
- * @return 0 on success, error otherwise
- */
-int segment_manager_collect_fifo_chunks (segment_manager_t * sm,
- svm_fifo_t * f);
u8 segment_manager_has_fifos (segment_manager_t * sm);
svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs,
svm_msg_q_t *segment_manager_event_queue (segment_manager_t * sm);
u32 segment_manager_evt_q_expected_size (u32 q_size);
+u8 segment_manager_app_detached (segment_manager_t * sm);
void segment_manager_app_detach (segment_manager_t * sm);
/**
* @param sm segment manager whose sessions are to be disconnected
*/
void segment_manager_del_sessions (segment_manager_t * sm);
+void segment_manager_del_sessions_filter (segment_manager_t *sm,
+ session_state_t *states);
void segment_manager_format_sessions (segment_manager_t * sm, int verbose);
-void segment_manager_main_init (segment_manager_main_init_args_t * a);
+void segment_manager_main_init (void);
segment_manager_props_t *segment_manager_props_init (segment_manager_props_t *
sm);
+static inline void
+segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index,
+ u32 * segment_index)
+{
+ *sm_index = segment_handle >> 32;
+ *segment_index = segment_handle & 0xFFFFFFFF;
+}
+
#endif /* SRC_VNET_SESSION_SEGMENT_MANAGER_H_ */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff