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-rw-r--r--src/vnet/session/session.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index 55863163a89..93278d6c3e1 100644
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -69,6 +69,18 @@ typedef struct session_ctrl_evt_data_
u8 data[SESSION_CTRL_MSG_MAX_SIZE];
} session_evt_ctrl_data_t;
+typedef enum session_wrk_state_
+{
+ SESSION_WRK_POLLING,
+ SESSION_WRK_INTERRUPT,
+ SESSION_WRK_IDLE,
+} __clib_packed session_wrk_state_t;
+
+typedef enum session_wrk_flags_
+{
+ SESSION_WRK_F_ADAPTIVE = 1 << 0,
+} __clib_packed session_wrk_flag_t;
+
typedef struct session_worker_
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
@@ -91,6 +103,15 @@ typedef struct session_worker_
/** Per-proto vector of sessions to enqueue */
u32 **session_to_enqueue;
+ /** Timerfd used to periodically signal wrk session queue node */
+ u32 timerfd;
+
+ /** Worker flags */
+ session_wrk_flag_t flags;
+
+ /** Worker state */
+ session_wrk_state_t state;
+
/** Context for session tx */
session_tx_context_t ctx;
@@ -121,6 +142,9 @@ typedef struct session_worker_
/** Vector of nexts for the pending tx buffers */
u16 *pending_tx_nexts;
+ /** Clib file for timerfd. Used only if adaptive mode is on */
+ uword timerfd_file;
+
#if SESSION_DEBUG
/** last event poll time by thread */
clib_time_type_t last_event_poll;
@@ -177,6 +201,9 @@ typedef struct session_main_
/** Allocate private rx mqs for external apps */
u8 use_private_rx_mqs;
+ /** Do not enable session queue node adaptive mode */
+ u8 no_adaptive;
+
/** vpp fifo event queue configured length */
u32 configured_event_queue_length;
@@ -682,6 +709,8 @@ session_add_pending_tx_buffer (u32 thread_index, u32 bi, u32 next_node)
session_worker_t *wrk = session_main_get_worker (thread_index);
vec_add1 (wrk->pending_tx_buffers, bi);
vec_add1 (wrk->pending_tx_nexts, next_node);
+ if (PREDICT_FALSE (wrk->state == SESSION_WRK_INTERRUPT))
+ vlib_node_set_interrupt_pending (wrk->vm, session_queue_node.index);
}
always_inline void
@@ -691,6 +720,7 @@ session_wrk_update_time (session_worker_t *wrk, f64 now)
wrk->last_vlib_us_time = wrk->last_vlib_time * CLIB_US_TIME_FREQ;
}
+void session_wrk_enable_adaptive_mode (session_worker_t *wrk);
fifo_segment_t *session_main_get_evt_q_segment (void);
void session_node_enable_disable (u8 is_en);
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);