csit - Integration tests

diff options

author	Jan Gelety <jgelety@cisco.com>	2018-09-11 14:12:54 +0200
committer	Jan Gelety <jgelety@cisco.com>	2018-09-14 06:59:27 +0000
commit	3e8a10ce9f0481d610aafa41f3195b0900122eb4 (patch)
tree	01c7fe4d0faad9ab5b1b4b8e52e5fdf28a3678f3 /tests/vpp/perf/l2
parent	4e92926132e55972a956be7b854e6e698c62857a (diff)

Add dot1q-ip4base-[ndrpdr|mrr] perf tests for 2-node topology

Jira: CSIT-1278 Change-Id: I3cc929222d7fd58f38e33917e84675e9c0b55bbd Signed-off-by: Jan Gelety <jgelety@cisco.com>

Diffstat (limited to 'tests/vpp/perf/l2')

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tests/vpp/perf/l2/10ge2p1x520-dot1q-l2bdbasemaclrn-mrr.robot

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tests/vpp/perf/l2/10ge2p1x520-dot1q-l2bdbasemaclrn-ndrpdr.robot

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tests/vpp/perf/l2/10ge2p1x520-dot1q-l2xcbase-mrr.robot

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tests/vpp/perf/l2/10ge2p1x520-dot1q-l2xcbase-ndrpdr.robot

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tests/vpp/perf/l2/10ge2p1x710-dot1q-l2xcbase-mrr.robot

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tests/vpp/perf/l2/10ge2p1x710-dot1q-l2xcbase-ndrpdr.robot

6 files changed, 14 insertions, 13 deletions

/* * Copyright (c) 2018 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vlib/vlib.h> #include <vnet/vnet.h> #include <vppinfra/error.h> #include <vnet/ethernet/ethernet.h> #include <vnet/feature/feature.h> #include <vnet/gso/gso.h> #include <vnet/ip/icmp46_packet.h> #include <vnet/ip/ip4.h> #include <vnet/ip/ip6.h> #include <vnet/udp/udp_packet.h> typedef struct { u32 flags; u16 gso_size; u8 gso_l4_hdr_sz; } gso_trace_t; static u8 * format_gso_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 *); gso_trace_t *t = va_arg (*args, gso_trace_t *); if (t->flags & VNET_BUFFER_F_GSO) { s = format (s, "gso_sz %d gso_l4_hdr_sz %d", t->gso_size, t->gso_l4_hdr_sz); } else { s = format (s, "non-gso buffer"); } return s; } static_always_inline u16 tso_alloc_tx_bufs (vlib_main_t * vm, vnet_interface_per_thread_data_t * ptd, vlib_buffer_t * b0, u32 n_bytes_b0, u16 l234_sz, u16 gso_size, gso_header_offset_t * gho) { u16 size = clib_min (gso_size, vlib_buffer_get_default_data_size (vm) - l234_sz - gho->l2_hdr_offset); /* rounded-up division */ u16 n_bufs = (n_bytes_b0 - l234_sz + (size - 1)) / size; u16 n_alloc; ASSERT (n_bufs > 0); vec_validate (ptd->split_buffers, n_bufs - 1); n_alloc = vlib_buffer_alloc (vm, ptd->split_buffers, n_bufs); if (n_alloc < n_bufs) { vlib_buffer_free (vm, ptd->split_buffers, n_alloc); return 0; } return n_alloc; } static_always_inline void tso_init_buf_from_template_base (vlib_buffer_t * nb0, vlib_buffer_t * b0, u32 flags, u16 length) { nb0->current_data = b0->current_data; nb0->total_length_not_including_first_buffer = 0; nb0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID | flags; nb0->trace_handle = b0->trace_handle; clib_memcpy_fast (&nb0->opaque, &b0->opaque, sizeof (nb0->opaque)); clib_memcpy_fast (vlib_buffer_get_current (nb0), vlib_buffer_get_current (b0), length); nb0->current_length = length; } static_always_inline void tso_init_buf_from_template (vlib_main_t * vm, vlib_buffer_t * nb0, vlib_buffer_t * b0, u16 template_data_sz, u16 gso_size, u8 ** p_dst_ptr, u16 * p_dst_left, u32 next_tcp_seq, u32 flags, gso_header_offset_t * gho) { tso_init_buf_from_template_base (nb0, b0, flags, template_data_sz); *p_dst_left = clib_min (gso_size, vlib_buffer_get_default_data_size (vm) - (template_data_sz + nb0->current_data)); *p_dst_ptr = vlib_buffer_get_current (nb0) + template_data_sz; tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (nb0) + gho->l4_hdr_offset); tcp->seq_number = clib_host_to_net_u32 (next_tcp_seq); } static_always_inline void tso_fixup_segmented_buf (vlib_buffer_t * b0, u8 tcp_flags, int is_ip6, gso_header_offset_t * gho) { ip4_header_t *ip4 = (ip4_header_t *) (vlib_buffer_get_current (b0) + gho->l3_hdr_offset); ip6_header_t *ip6 = (ip6_header_t *) (vlib_buffer_get_current (b0) + gho->l3_hdr_offset); tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b0) + gho->l4_hdr_offset); tcp->flags = tcp_flags; if (is_ip6) ip6->payload_length = clib_host_to_net_u16 (b0->current_length - (gho->l4_hdr_offset - gho->l2_hdr_offset)); else ip4->length = clib_host_to_net_u16 (b0->current_length - (gho->l3_hdr_offset - gho->l2_hdr_offset)); } /** * Allocate the necessary number of ptd->split_buffers, * and segment the possibly chained buffer(s) from b0 into * there. * * Return the cumulative number of bytes sent or zero * if allocation failed. */ static_always_inline u32 tso_segment_buffer (vlib_main_t * vm, vnet_interface_per_thread_data_t * ptd, u32 sbi0, vlib_buffer_t * sb0, gso_header_offset_t * gho, u32 n_bytes_b0, int is_ip6) { u32 n_tx_bytes = 0; u16 gso_size = vnet_buffer2 (sb0)->gso_size; int l4_hdr_sz = gho->l4_hdr_sz; u8 save_tcp_flags = 0; u8 tcp_flags_no_fin_psh = 0; u32 next_tcp_seq = 0; tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (sb0) + gho->l4_hdr_offset); next_tcp_seq = clib_net_to_host_u32 (tcp->seq_number); /* store original flags for last packet and reset FIN and PSH */ save_tcp_flags = tcp->flags; tcp_flags_no_fin_psh = tcp->flags & ~(TCP_FLAG_FIN | TCP_FLAG_PSH); tcp->checksum = 0; u32 default_bflags = sb0->flags & ~(VNET_BUFFER_F_GSO | VLIB_BUFFER_NEXT_PRESENT); u16 l234_sz = gho->l4_hdr_offset + l4_hdr_sz - gho->l2_hdr_offset; int first_data_size = clib_min (gso_size, sb0->current_length - l234_sz); next_tcp_seq += first_data_size; if (PREDICT_FALSE (!tso_alloc_tx_bufs (vm, ptd, sb0, n_bytes_b0, l234_sz, gso_size, gho))) return 0; vlib_buffer_t *b0 = vlib_get_buffer (vm, ptd->split_buffers[0]); tso_init_buf_from_template_base (b0, sb0, default_bflags, l234_sz + first_data_size); u32 total_src_left = n_bytes_b0 - l234_sz - first_data_size; if (total_src_left) { /* Need to copy more segments */ u8 *src_ptr, *dst_ptr; u16 src_left, dst_left; /* current source buffer */ vlib_buffer_t *csb0 = sb0; u32 csbi0 = sbi0; /* current dest buffer */ vlib_buffer_t *cdb0; u16 dbi = 1; /* the buffer [0] is b0 */ src_ptr = vlib_buffer_get_current (sb0) + l234_sz + first_data_size; src_left = sb0->current_length - l234_sz - first_data_size; tso_fixup_segmented_buf (b0, tcp_flags_no_fin_psh, is_ip6, gho); /* grab a second buffer and prepare the loop */ ASSERT (dbi < vec_len (ptd->split_buffers)); cdb0 = vlib_get_buffer (vm, ptd->split_buffers[dbi++]); tso_init_buf_from_template (vm, cdb0, b0, l234_sz, gso_size, &dst_ptr, &dst_left, next_tcp_seq, default_bflags, gho); /* an arbitrary large number to catch the runaway loops */ int nloops = 2000; while (total_src_left) { if (nloops-- <= 0) clib_panic ("infinite loop detected"); u16 bytes_to_copy = clib_min (src_left, dst_left); clib_memcpy_fast (dst_ptr, src_ptr, bytes_to_copy); src_left -= bytes_to_copy; src_ptr += bytes_to_copy; total_src_left -= bytes_to_copy; dst_left -= bytes_to_copy; dst_ptr += bytes_to_copy; next_tcp_seq += bytes_to_copy; cdb0->current_length += bytes_to_copy; if (0 == src_left) { int has_next = (csb0->flags & VLIB_BUFFER_NEXT_PRESENT); u32 next_bi = csb0->next_buffer; /* init src to the next buffer in chain */ if (has_next) { csbi0 = next_bi; csb0 = vlib_get_buffer (vm, csbi0); src_left = csb0->current_length; src_ptr = vlib_buffer_get_current (csb0); } else { ASSERT (total_src_left == 0); break; } } if (0 == dst_left && total_src_left) { n_tx_bytes += cdb0->current_length; tso_fixup_segmented_buf (cdb0, tcp_flags_no_fin_psh, is_ip6, gho); ASSERT (dbi < vec_len (ptd->split_buffers)); cdb0 = vlib_get_buffer (vm, ptd->split_buffers[dbi++]); tso_init_buf_from_template (vm, cdb0, b0, l234_sz, gso_size, &dst_ptr, &dst_left, next_tcp_seq, default_bflags, gho); } } tso_fixup_segmented_buf (cdb0, save_tcp_flags, is_ip6, gho); n_tx_bytes += cdb0->current_length; } n_tx_bytes += b0->current_length; return n_tx_bytes; } static_always_inline void drop_one_buffer_and_count (vlib_main_t * vm, vnet_main_t * vnm, vlib_node_runtime_t * node, u32 * pbi0, u32 sw_if_index, u32 drop_error_code) { u32 thread_index = vm->thread_index; vlib_simple_counter_main_t *cm; cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, VNET_INTERFACE_COUNTER_TX_ERROR); vlib_increment_simple_counter (cm, thread_index, sw_if_index, 1); vlib_error_drop_buffers (vm, node, pbi0, /* buffer stride */ 1, /* n_buffers */ 1, VNET_INTERFACE_OUTPUT_NEXT_DROP, node->node_index, drop_error_code); } static_always_inline uword vnet_gso_node_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, vnet_main_t * vnm, vnet_hw_interface_t * hi, int is_ip6, int do_segmentation) { u32 *to_next; u32 next_index = node->cached_next_index; u32 *from = vlib_frame_vector_args (frame); u32 n_left_from = frame->n_vectors; u32 *from_end = from + n_left_from; u32 thread_index = vm->thread_index; vnet_interface_main_t *im = &vnm->interface_main; vnet_interface_per_thread_data_t *ptd = vec_elt_at_index (im->per_thread_data, thread_index); vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; vlib_get_buffers (vm, from, b, n_left_from); while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); if (!do_segmentation) while (from + 8 <= from_end && n_left_to_next >= 4) { u32 bi0, bi1, bi2, bi3; u32 next0, next1, next2, next3; u32 swif0, swif1, swif2, swif3; gso_trace_t *t0, *t1, *t2, *t3; vnet_hw_interface_t *hi0, *hi1, *hi2, *hi3; /* Prefetch next iteration. */ vlib_prefetch_buffer_header (b[4], LOAD); vlib_prefetch_buffer_header (b[5], LOAD); vlib_prefetch_buffer_header (b[6], LOAD); vlib_prefetch_buffer_header (b[7], LOAD); bi0 = from[0]; bi1 = from[1]; bi2 = from[2]; bi3 = from[3]; to_next[0] = bi0; to_next[1] = bi1; to_next[2] = bi2; to_next[3] = bi3; swif0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; swif1 = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; swif2 = vnet_buffer (b[2])->sw_if_index[VLIB_TX]; swif3 = vnet_buffer (b[3])->sw_if_index[VLIB_TX]; if (PREDICT_FALSE (hi->sw_if_index != swif0)) { hi0 = vnet_get_sup_hw_interface (vnm, swif0); if ((hi0->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) == 0 && (b[0]->flags & VNET_BUFFER_F_GSO)) break; } if (PREDICT_FALSE (hi->sw_if_index != swif1)) { hi1 = vnet_get_sup_hw_interface (vnm, swif1); if (!(hi1->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) && (b[1]->flags & VNET_BUFFER_F_GSO)) break; } if (PREDICT_FALSE (hi->sw_if_index != swif2)) { hi2 = vnet_get_sup_hw_interface (vnm, swif2); if ((hi2->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) == 0 && (b[2]->flags & VNET_BUFFER_F_GSO)) break; } if (PREDICT_FALSE (hi->sw_if_index != swif3)) { hi3 = vnet_get_sup_hw_interface (vnm, swif3); if (!(hi3->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) && (b[3]->flags & VNET_BUFFER_F_GSO)) break; } if (b[0]->flags & VLIB_BUFFER_IS_TRACED) { t0 = vlib_add_trace (vm, node, b[0], sizeof (t0[0])); t0->flags = b[0]->flags & VNET_BUFFER_F_GSO; t0->gso_size = vnet_buffer2 (b[0])->gso_size; t0->gso_l4_hdr_sz = vnet_buffer2 (b[0])->gso_l4_hdr_sz; } if (b[1]->flags & VLIB_BUFFER_IS_TRACED) { t1 = vlib_add_trace (vm, node, b[1], sizeof (t1[0])); t1->flags = b[1]->flags & VNET_BUFFER_F_GSO; t1->gso_size = vnet_buffer2 (b[1])->gso_size; t1->gso_l4_hdr_sz = vnet_buffer2 (b[1])->gso_l4_hdr_sz; } if (b[2]->flags & VLIB_BUFFER_IS_TRACED) { t2 = vlib_add_trace (vm, node, b[2], sizeof (t2[0])); t2->flags = b[2]->flags & VNET_BUFFER_F_GSO; t2->gso_size = vnet_buffer2 (b[2])->gso_size; t2->gso_l4_hdr_sz = vnet_buffer2 (b[2])->gso_l4_hdr_sz; } if (b[3]->flags & VLIB_BUFFER_IS_TRACED) { t3 = vlib_add_trace (vm, node, b[3], sizeof (t3[0])); t3->flags = b[3]->flags & VNET_BUFFER_F_GSO; t3->gso_size = vnet_buffer2 (b[3])->gso_size; t3->gso_l4_hdr_sz = vnet_buffer2 (b[3])->gso_l4_hdr_sz; } from += 4; to_next += 4; n_left_to_next -= 4; n_left_from -= 4; next0 = next1 = 0; next2 = next3 = 0; vnet_feature_next (&next0, b[0]); vnet_feature_next (&next1, b[1]); vnet_feature_next (&next2, b[2]); vnet_feature_next (&next3, b[3]); vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, n_left_to_next, bi0, bi1, bi2, bi3, next0, next1, next2, next3); b += 4; } while (from + 1 <= from_end && n_left_to_next > 0) { u32 bi0, swif0; gso_trace_t *t0; vnet_hw_interface_t *hi0; u32 next0 = 0; u32 do_segmentation0 = 0; swif0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; if (PREDICT_FALSE (hi->sw_if_index != swif0)) { hi0 = vnet_get_sup_hw_interface (vnm, swif0); if ((hi0->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) == 0 && (b[0]->flags & VNET_BUFFER_F_GSO)) do_segmentation0 = 1; } else do_segmentation0 = do_segmentation; /* speculatively enqueue b0 to the current next frame */ to_next[0] = bi0 = from[0]; to_next += 1; n_left_to_next -= 1; from += 1; n_left_from -= 1; if (b[0]->flags & VLIB_BUFFER_IS_TRACED) { t0 = vlib_add_trace (vm, node, b[0], sizeof (t0[0])); t0->flags = b[0]->flags & VNET_BUFFER_F_GSO; t0->gso_size = vnet_buffer2 (b[0])->gso_size; t0->gso_l4_hdr_sz = vnet_buffer2 (b[0])->gso_l4_hdr_sz; } if (do_segmentation0) { if (PREDICT_FALSE (b[0]->flags & VNET_BUFFER_F_GSO)) { /* * Undo the enqueue of the b0 - it is not going anywhere, * and will be freed either after it's segmented or * when dropped, if there is no buffers to segment into. */ to_next -= 1; n_left_to_next += 1; /* undo the counting. */ gso_header_offset_t gho; u32 n_bytes_b0 = vlib_buffer_length_in_chain (vm, b[0]); u32 n_tx_bytes = 0; gho = vnet_gso_header_offset_parser (b[0], is_ip6); n_tx_bytes = tso_segment_buffer (vm, ptd, bi0, b[0], &gho, n_bytes_b0, is_ip6); if (PREDICT_FALSE (n_tx_bytes == 0)) { drop_one_buffer_and_count (vm, vnm, node, from - 1, hi->sw_if_index, VNET_INTERFACE_OUTPUT_ERROR_NO_BUFFERS_FOR_GSO); b += 1; continue; } u16 n_tx_bufs = vec_len (ptd->split_buffers); u32 *from_seg = ptd->split_buffers; while (n_tx_bufs > 0) { u32 sbi0; vlib_buffer_t *sb0; if (n_tx_bufs >= n_left_to_next) { while (n_left_to_next > 0) { sbi0 = to_next[0] = from_seg[0]; sb0 = vlib_get_buffer (vm, sbi0); to_next += 1; from_seg += 1; n_left_to_next -= 1; n_tx_bufs -= 1; vnet_feature_next (&next0, sb0); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, sbi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); vlib_get_new_next_frame (vm, node, next_index, to_next, n_left_to_next); } while (n_tx_bufs > 0) { sbi0 = to_next[0] = from_seg[0]; sb0 = vlib_get_buffer (vm, sbi0); to_next += 1; from_seg += 1; n_left_to_next -= 1; n_tx_bufs -= 1; vnet_feature_next (&next0, sb0); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, sbi0, next0); } } /* The buffers were enqueued. Reset the length */ _vec_len (ptd->split_buffers) = 0; /* Free the now segmented buffer */ vlib_buffer_free_one (vm, bi0); b += 1; continue; } } vnet_feature_next (&next0, b[0]); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); b += 1; } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } static_always_inline uword vnet_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip6) { vnet_main_t *vnm = vnet_get_main (); vnet_hw_interface_t *hi; if (frame->n_vectors > 0) { u32 *from = vlib_frame_vector_args (frame); vlib_buffer_t *b = vlib_get_buffer (vm, from[0]); hi = vnet_get_sup_hw_interface (vnm, vnet_buffer (b)->sw_if_index[VLIB_TX]); if (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO) return vnet_gso_node_inline (vm, node, frame, vnm, hi, is_ip6, /* do_segmentation */ 0); else return vnet_gso_node_inline (vm, node, frame, vnm, hi, is_ip6, /* do_segmentation */ 1); } return 0; } VLIB_NODE_FN (gso_l2_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return vnet_gso_inline (vm, node, frame, 0 /* ip6 */ ); } VLIB_NODE_FN (gso_l2_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return vnet_gso_inline (vm, node, frame, 1 /* ip6 */ ); } VLIB_NODE_FN (gso_ip4_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return vnet_gso_inline (vm, node, frame, 0 /* ip6 */ ); } VLIB_NODE_FN (gso_ip6_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return vnet_gso_inline (vm, node, frame, 1 /* ip6 */ ); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (gso_l2_ip4_node) = { .vector_size = sizeof (u32), .format_trace = format_gso_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 0, .name = "gso-l2-ip4", }; VLIB_REGISTER_NODE (gso_l2_ip6_node) = { .vector_size = sizeof (u32), .format_trace = format_gso_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 0, .name = "gso-l2-ip6", }; VLIB_REGISTER_NODE (gso_ip4_node) = { .vector_size = sizeof (u32), .format_trace = format_gso_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 0, .name = "gso-ip4", }; VLIB_REGISTER_NODE (gso_ip6_node) = { .vector_size = sizeof (u32), .format_trace = format_gso_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 0, .name = "gso-ip6", }; VNET_FEATURE_INIT (gso_l2_ip4_node, static) = { .arc_name = "l2-output-ip4", .node_name = "gso-l2-ip4", .runs_before = VNET_FEATURES ("l2-output-feat-arc-end"), }; VNET_FEATURE_INIT (gso_l2_ip6_node, static) = { .arc_name = "l2-output-ip6", .node_name = "gso-l2-ip6", .runs_before = VNET_FEATURES ("l2-output-feat-arc-end"), }; VNET_FEATURE_INIT (gso_ip4_node, static) = { .arc_name = "ip4-output", .node_name = "gso-ip4", .runs_after = VNET_FEATURES ("ipsec4-output-feature"), .runs_before = VNET_FEATURES ("interface-output"), }; VNET_FEATURE_INIT (gso_ip6_node, static) = { .arc_name = "ip6-output", .node_name = "gso-ip6", .runs_after = VNET_FEATURES ("ipsec6-output-feature"), .runs_before = VNET_FEATURES ("interface-output"), }; /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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