diff options
| author |   Damjan Marion <damarion@cisco.com> | 2023-07-23 14:24:22 +0200 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2023-07-25 20:10:29 +0000 |
| commit | cc8249c5fde1b00b043066617d35325dd1606cd6 (patch) | |
| tree | 105b40cf6eb8d00440832dd73aa4544aa173fd5a /src/vlib/main.c | |
| parent | 3f40755749b07e5a936ad6d15622e371e7e5c25e (diff) | |
vlib: interrupt mode support for pre-input nodes
Type: improvement
Change-Id: Ic6e60597d2be63e3a0ae4399a81dbbd72392f30d
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/main.c')
| -rw-r--r-- | src/vlib/main.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/src/vlib/main.c b/src/vlib/main.c index 0f67bb86554..9d34aa1d948 100644 --- a/src/vlib/main.c +++ b/src/vlib/main.c @@ -1471,8 +1471,7 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main) else cpu_time_now = clib_cpu_time_now (); - /* Pre-allocate interupt runtime indices and lock. */ - vec_validate_aligned (nm->pending_interrupts, 0, CLIB_CACHE_LINE_BYTES); + nm->pending_interrupts = 0; /* Pre-allocate expired nodes. */ if (!nm->polling_threshold_vector_length) @@ -1505,6 +1504,7 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main) while (1) { vlib_node_runtime_t *n; + u8 pending_interrupts; if (PREDICT_FALSE (_vec_len (vm->pending_rpc_requests) > 0)) { @@ -1552,6 +1552,27 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main) /* frame */ 0, cpu_time_now); + pending_interrupts = + __atomic_load_n (&nm->pending_interrupts, __ATOMIC_ACQUIRE); + + if (pending_interrupts) + { + int int_num = -1; + nm->pending_interrupts = 0; + + while ((int_num = clib_interrupt_get_next ( + nm->pre_input_node_interrupts, int_num)) != -1) + { + vlib_node_runtime_t *n; + clib_interrupt_clear (nm->pre_input_node_interrupts, int_num); + n = vec_elt_at_index ( + nm->nodes_by_type[VLIB_NODE_TYPE_PRE_INPUT], int_num); + cpu_time_now = dispatch_node (vm, n, VLIB_NODE_TYPE_PRE_INPUT, + VLIB_NODE_STATE_INTERRUPT, + /* frame */ 0, cpu_time_now); + } + } + /* Next process input nodes. */ vec_foreach (n, nm->nodes_by_type[VLIB_NODE_TYPE_INPUT]) cpu_time_now = dispatch_node (vm, n, @@ -1563,16 +1584,15 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main) if (PREDICT_TRUE (is_main && vm->queue_signal_pending == 0)) vm->queue_signal_callback (vm); - if (__atomic_load_n (nm->pending_interrupts, __ATOMIC_ACQUIRE)) + if (pending_interrupts) { int int_num = -1; - *nm->pending_interrupts = 0; - while ((int_num = - clib_interrupt_get_next (nm->interrupts, int_num)) != -1) + while ((int_num = clib_interrupt_get_next (nm->input_node_interrupts, + int_num)) != -1) { vlib_node_runtime_t *n; - clib_interrupt_clear (nm->interrupts, int_num); + clib_interrupt_clear (nm->input_node_interrupts, int_num); n = vec_elt_at_index (nm->nodes_by_type[VLIB_NODE_TYPE_INPUT], int_num); cpu_time_now = dispatch_node (vm, n, VLIB_NODE_TYPE_INPUT, |