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authorDamjan Marion <damarion@cisco.com>2020-06-03 12:20:41 +0200
committerDave Barach <openvpp@barachs.net>2020-06-03 13:21:57 +0000
commit1033b4997e4194e5172b7b12ddf638bfdfdaae22 (patch)
tree8e7d29685dee34f066688ae4ffe06b29a15f2c5b /src/vlib/node.h
parentec62d0a436be00bcc084a56548c8c7fa55b2cb61 (diff)
vlib: improve node interrupt handling
- add ability to pass data together with interrupt - avoid locking for local interrupts (same thread) Type: improvement Change-Id: I73a2ab2e716bb887a1f02c87788ae83e329f9b40 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/node.h')
-rw-r--r--src/vlib/node.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/src/vlib/node.h b/src/vlib/node.h
index 1bdb3bb7797..ca7564a13e7 100644
--- a/src/vlib/node.h
+++ b/src/vlib/node.h
@@ -471,10 +471,6 @@ typedef struct vlib_node_runtime_t
vlib_error_t *errors; /**< Vector of errors for this node. */
-#if __SIZEOF_POINTER__ == 4
- u8 pad[8];
-#endif
-
u32 clocks_since_last_overflow; /**< Number of clock cycles. */
u32 max_clock; /**< Maximum clock cycle for an
@@ -512,6 +508,10 @@ typedef struct vlib_node_runtime_t
u16 state; /**< Input node state. */
+ u32 interrupt_data; /**< Data passed together with interrupt.
+ Valid only when state is
+ VLIB_NODE_STATE_INTERRUPT */
+
u16 n_next_nodes;
u16 cached_next_index; /**< Next frame index that vector
@@ -676,6 +676,12 @@ vlib_timing_wheel_data_get_index (u32 d)
typedef struct
{
+ u32 node_runtime_index;
+ u32 data;
+} vlib_node_interrupt_t;
+
+typedef struct
+{
/* Public nodes. */
vlib_node_t **nodes;
@@ -690,7 +696,8 @@ typedef struct
vlib_node_runtime_t *nodes_by_type[VLIB_N_NODE_TYPE];
/* Node runtime indices for input nodes with pending interrupts. */
- u32 *pending_interrupt_node_runtime_indices;
+ vlib_node_interrupt_t *pending_local_interrupts;
+ vlib_node_interrupt_t *pending_remote_interrupts;
clib_spinlock_t pending_interrupt_lock;
/* Input nodes are switched from/to interrupt to/from polling mode