diff options
Diffstat (limited to 'build-root/emacs-lisp/dual-loop-skel.el')
| -rw-r--r-- | build-root/emacs-lisp/dual-loop-skel.el | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/build-root/emacs-lisp/dual-loop-skel.el b/build-root/emacs-lisp/dual-loop-skel.el deleted file mode 100644 index b23d65acaf3..00000000000 --- a/build-root/emacs-lisp/dual-loop-skel.el +++ /dev/null @@ -1,302 +0,0 @@ -;;; dual-loop-skel.el - Eliotic dual-loop node skeleton - -(require 'skeleton) - -(define-skeleton skel-dual-loop -"Insert a skeleton dual-loop graph node" -nil -'(setq node-name (skeleton-read "Node Name: ")) -'(setq uc-node-name (upcase node-name)) -" -#include <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vnet/pg/pg.h> - -#include <vnet/ip/ip.h> -#include <vnet/ethernet/ethernet.h> - -#include <vppinfra/hash.h> -#include <vppinfra/error.h> -#include <vppinfra/elog.h> - -typedef struct { - /* convenience */ - vlib_main_t * vlib_main; - vnet_main_t * vnet_main; - ethernet_main_t * ethernet_main; -} " node-name "_main_t; - -" node-name "_main_t " node-name "_main; - -vlib_node_registration_t " node-name "_node; - -typedef struct { - u32 next_index; - u32 sw_if_index; -} " node-name "_trace_t; - -/* packet trace format function */ -static u8 * format_" node-name "_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - " node-name "_trace_t * t = va_arg (*args, " node-name "_trace_t *); - - s = format (s, \"" uc-node-name ": sw_if_index %d, next index %d\", - t->sw_if_index, t->next_index); - return s; -} - -vlib_node_registration_t " node-name "_node; - -#define foreach_" node-name "_error \\ -_(SWAPPED, \"Mac swap packets processed\") - -typedef enum { -#define _(sym,str) " uc-node-name "_ERROR_##sym, - foreach_" node-name "_error -#undef _ - " uc-node-name "_N_ERROR, -} " node-name "_error_t; - -static char * " node-name "_error_strings[] = { -#define _(sym,string) string, - foreach_" node-name "_error -#undef _ -}; - -typedef enum { - " uc-node-name "_NEXT_INTERFACE_OUTPUT, - " uc-node-name "_N_NEXT, -} " node-name "_next_t; - -#define foreach_mac_address_offset \\ -_(0) \\ -_(1) \\ -_(2) \\ -_(3) \\ -_(4) \\ -_(5) - -static uword -" node-name "_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - u32 n_left_from, * from, * to_next; - " node-name "_next_t next_index; - u32 pkts_swapped = 0; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); - - while (n_left_from >= 4 && n_left_to_next >= 2) - { - u32 next0 = " uc-node-name "_NEXT_INTERFACE_OUTPUT; - u32 next1 = " uc-node-name "_NEXT_INTERFACE_OUTPUT; - u32 sw_if_index0, sw_if_index1; - u8 tmp0[6], tmp1[6]; - ethernet_header_t *en0, *en1; - u32 bi0, bi1; - vlib_buffer_t * b0, * b1; - - /* Prefetch next iteration. */ - { - vlib_buffer_t * p2, * p3; - - p2 = vlib_get_buffer (vm, from[2]); - p3 = vlib_get_buffer (vm, from[3]); - - vlib_prefetch_buffer_header (p2, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); - - CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE); - CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE); - } - - /* speculatively enqueue b0 and b1 to the current next frame */ - to_next[0] = bi0 = from[0]; - to_next[1] = bi1 = from[1]; - from += 2; - to_next += 2; - n_left_from -= 2; - n_left_to_next -= 2; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - - /* $$$$$ Dual loop: process 2 x packets here $$$$$ */ - ASSERT (b0->current_data == 0); - ASSERT (b1->current_data == 0); - - en0 = vlib_buffer_get_current (b0); - en1 = vlib_buffer_get_current (b1); - - /* This is not the fastest way to swap src + dst mac addresses */ -#define _(a) tmp0[a] = en0->src_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en0->src_address[a] = en0->dst_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en0->dst_address[a] = tmp0[a]; - foreach_mac_address_offset; -#undef _ - -#define _(a) tmp1[a] = en1->src_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en1->src_address[a] = en1->dst_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en1->dst_address[a] = tmp1[a]; - foreach_mac_address_offset; -#undef _ - - sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; - sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX]; - - /* Send pkt back out the RX interface */ - vnet_buffer(b0)->sw_if_index[VLIB_TX] = sw_if_index0; - vnet_buffer(b1)->sw_if_index[VLIB_TX] = sw_if_index1; - - pkts_swapped += 2; - /* $$$$$ End of processing 2 x packets $$$$$ */ - - if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - " node-name "_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - " node-name "_trace_t *t = - vlib_add_trace (vm, node, b1, sizeof (*t)); - t->sw_if_index = sw_if_index1; - t->next_index = next1; - } - } - - /* verify speculative enqueues, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, - to_next, n_left_to_next, - bi0, bi1, next0, next1); - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t * b0; - u32 next0 = " uc-node-name "_NEXT_INTERFACE_OUTPUT; - u32 sw_if_index0; - u8 tmp0[6]; - ethernet_header_t *en0; - - /* speculatively enqueue b0 to the current next frame */ - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - /* $$$$$ Single loop: process 1 packet here $$$$$ */ - - /* - * Direct from the driver, we should be at offset 0 - * aka at &b0->data[0] - */ - ASSERT (b0->current_data == 0); - - en0 = vlib_buffer_get_current (b0); - - /* This is not the fastest way to swap src + dst mac addresses */ -#define _(a) tmp0[a] = en0->src_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en0->src_address[a] = en0->dst_address[a]; - foreach_mac_address_offset; -#undef _ -#define _(a) en0->dst_address[a] = tmp0[a]; - foreach_mac_address_offset; -#undef _ - - sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; - - /* Send pkt back out the RX interface */ - vnet_buffer(b0)->sw_if_index[VLIB_TX] = sw_if_index0; - - if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE) - && (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - " node-name "_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - - pkts_swapped += 1; - - /* $$$$$ Done processing 1 packet here $$$$$ */ - - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - vlib_node_increment_counter (vm, " node-name "_node.index, - " uc-node-name "_ERROR_SWAPPED, pkts_swapped); - return frame->n_vectors; -} - -VLIB_REGISTER_NODE (" node-name "_node) = { - .function = " node-name "_node_fn, - .name = \"" node-name "\", - .vector_size = sizeof (u32), - .format_trace = format_" node-name "_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(" node-name "_error_strings), - .error_strings = " node-name "_error_strings, - - .n_next_nodes = " uc-node-name "_N_NEXT, - - /* edit / add dispositions here */ - .next_nodes = { - [" uc-node-name "_NEXT_INTERFACE_OUTPUT] = \"interface-output\", - }, -}; - -clib_error_t *" node-name "_init (vlib_main_t *vm) -{ - " node-name "_main_t *msm = &" node-name "_main; - - /* $$$$$ Initialize " node-name "_main_t structure here. $$$$$ */ - msm->vlib_main = vm; - msm->vnet_main = vnet_get_main(); - msm->ethernet_main = ethernet_get_main(vm); - - return 0; -} - -VLIB_INIT_FUNCTION(" node-name "_init); -") - |