csit - Integration tests

Age	Commit message (Expand)	Author	Files	Lines
2018-08-20	Refactor VHOST code	Peter Mikus	1	-17/+16
2018-07-24	CSIT-1097: Migrate vm_vhost to NDRPDR and edit MRR	Vratko Polak	1	-0/+150

/* * Copyright (c) 2015 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/pg/pg.h> #include <vnet/ethernet/ethernet.h> #include <vppinfra/error.h> #include <vnet/devices/pci/ige.h> #include <vnet/devices/pci/ixge.h> #include <vnet/devices/pci/ixgev.h> typedef struct { u32 cached_next_index; u32 cached_sw_if_index; /* Hash table to map sw_if_index to next node index */ uword *next_node_index_by_sw_if_index; /* convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; } mac_swap_main_t; typedef struct { u8 src[6]; u8 dst[6]; u32 sw_if_index; u32 next_index; } swap_trace_t; /* packet trace format function */ static u8 * format_swap_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 *); swap_trace_t *t = va_arg (*args, swap_trace_t *); s = format (s, "SWAP: dst now %U src now %U sw_if_index %d next_index %d", format_ethernet_address, t->dst, format_ethernet_address, t->src, t->sw_if_index, t->next_index); return s; } #define foreach_hw_driver_next \ _(IP4) \ _(IP6) \ _(ETHERNET) mac_swap_main_t mac_swap_main; static vlib_node_registration_t mac_swap_node; #define foreach_mac_swap_error \ _(SWAPS, "mac addresses swapped") typedef enum { #define _(sym,str) MAC_SWAP_ERROR_##sym, foreach_mac_swap_error #undef _ MAC_SWAP_N_ERROR, } mac_swap_error_t; static char *mac_swap_error_strings[] = { #define _(sym,string) string, foreach_mac_swap_error #undef _ }; /* * To drop a pkt and increment one of the previous counters: * * set b0->error = error_node->errors[RANDOM_ERROR_SAMPLE]; * set next0 to a disposition index bound to "error-drop". * * To manually increment the specific counter MAC_SWAP_ERROR_SAMPLE: * * vlib_node_t *n = vlib_get_node (vm, mac_swap.index); * u32 node_counter_base_index = n->error_heap_index; * vlib_error_main_t * em = &vm->error_main; * em->counters[node_counter_base_index + MAC_SWAP_ERROR_SAMPLE] += 1; * */ typedef enum { MAC_SWAP_NEXT_DROP, MAC_SWAP_N_NEXT, } mac_swap_next_t; static uword mac_swap_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, *to_next; mac_swap_next_t next_index; mac_swap_main_t *msm = &mac_swap_main; vlib_node_t *n = vlib_get_node (vm, mac_swap_node.index); u32 node_counter_base_index = n->error_heap_index; vlib_error_main_t *em = &vm->error_main; 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 bi0, bi1; vlib_buffer_t *b0, *b1; u32 next0, next1; u32 sw_if_index0, sw_if_index1; uword *p0, *p1; u64 tmp0a, tmp0b; u64 tmp1a, tmp1b; ethernet_header_t *h0, *h1; /* 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); } 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); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; next0 = msm->cached_next_index; sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; next1 = msm->cached_next_index; if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0)) { p0 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0); if (p0 == 0) { vnet_hw_interface_t *hw0; hw0 = vnet_get_sup_hw_interface (msm->vnet_main, sw_if_index0); next0 = vlib_node_add_next (msm->vlib_main, mac_swap_node.index, hw0->output_node_index); hash_set (msm->next_node_index_by_sw_if_index, sw_if_index0, next0); } else next0 = p0[0]; msm->cached_sw_if_index = sw_if_index0; msm->cached_next_index = next0; next1 = next0; } if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index1)) { p1 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index1); if (p1 == 0) { vnet_hw_interface_t *hw1; hw1 = vnet_get_sup_hw_interface (msm->vnet_main, sw_if_index1); next1 = vlib_node_add_next (msm->vlib_main, mac_swap_node.index, hw1->output_node_index); hash_set (msm->next_node_index_by_sw_if_index, sw_if_index1, next1); } else next1 = p1[0]; msm->cached_sw_if_index = sw_if_index1; msm->cached_next_index = next1; } em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 2; /* reset buffer so we always point at the MAC hdr */ vlib_buffer_reset (b0); vlib_buffer_reset (b1); h0 = vlib_buffer_get_current (b0); h1 = vlib_buffer_get_current (b1); /* Swap 2 x src and dst mac addresses using 8-byte load/stores */ tmp0a = clib_net_to_host_u64 (((u64 *) (h0->dst_address))[0]); tmp1a = clib_net_to_host_u64 (((u64 *) (h1->dst_address))[0]); tmp0b = clib_net_to_host_u64 (((u64 *) (h0->src_address))[0]); tmp1b = clib_net_to_host_u64 (((u64 *) (h1->src_address))[0]); ((u64 *) (h0->dst_address))[0] = clib_host_to_net_u64 (tmp0b); ((u64 *) (h1->dst_address))[0] = clib_host_to_net_u64 (tmp1b); /* Move the ethertype from "b" to "a" */ tmp0a &= ~(0xFFFF); tmp1a &= ~(0xFFFF); tmp0a |= tmp0b & 0xFFFF; ((u64 *) (h0->src_address))[0] = clib_host_to_net_u64 (tmp0a); tmp1a |= tmp1b & 0xFFFF; ((u64 *) (h1->src_address))[0] = clib_host_to_net_u64 (tmp1a); if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) { if (b0->flags & VLIB_BUFFER_IS_TRACED) { swap_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); clib_memcpy (t->src, h0->src_address, 6); clib_memcpy (t->dst, h0->dst_address, 6); t->sw_if_index = sw_if_index0; t->next_index = next0; } if (b1->flags & VLIB_BUFFER_IS_TRACED) { swap_trace_t *t = vlib_add_trace (vm, node, b1, sizeof (*t)); clib_memcpy (t->src, h1->src_address, 6); clib_memcpy (t->dst, h1->dst_address, 6); t->sw_if_index = sw_if_index1; t->next_index = next1; } } 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; u32 sw_if_index0; uword *p0; u64 tmp0a, tmp0b; ethernet_header_t *h0; 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); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; next0 = msm->cached_next_index; if (PREDICT_FALSE (msm->cached_sw_if_index != sw_if_index0)) { p0 = hash_get (msm->next_node_index_by_sw_if_index, sw_if_index0); if (p0 == 0) { vnet_hw_interface_t *hw0; hw0 = vnet_get_sup_hw_interface (msm->vnet_main, sw_if_index0); next0 = vlib_node_add_next (msm->vlib_main, mac_swap_node.index, hw0->output_node_index); hash_set (msm->next_node_index_by_sw_if_index, sw_if_index0, next0); } else next0 = p0[0]; msm->cached_sw_if_index = sw_if_index0; msm->cached_next_index = next0; } em->counters[node_counter_base_index + MAC_SWAP_ERROR_SWAPS] += 1; /* reset buffer so we always point at the MAC hdr */ vlib_buffer_reset (b0); h0 = vlib_buffer_get_current (b0); /* Exchange src and dst, preserve the ethertype */ tmp0a = clib_net_to_host_u64 (((u64 *) (h0->dst_address))[0]); tmp0b = clib_net_to_host_u64 (((u64 *) (h0->src_address))[0]); ((u64 *) (h0->dst_address))[0] = clib_host_to_net_u64 (tmp0b); tmp0a &= ~(0xFFFF); tmp0a |= tmp0b & 0xFFFF; ((u64 *) (h0->src_address))[0] = clib_host_to_net_u64 (tmp0a); /* ship it */ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { swap_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); clib_memcpy (t->src, h0->src_address, 6); clib_memcpy (t->dst, h0->dst_address, 6); t->sw_if_index = sw_if_index0; t->next_index = next0; } 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); } return frame->n_vectors; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (mac_swap_node,static) = { .function = mac_swap_node_fn, .name = "mac-swap", .vector_size = sizeof (u32), .format_trace = format_swap_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(mac_swap_error_strings), .error_strings = mac_swap_error_strings, .n_next_nodes = MAC_SWAP_N_NEXT, /* edit / add dispositions here */ .next_nodes = { [MAC_SWAP_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ clib_error_t * mac_swap_init (vlib_main_t * vm) { mac_swap_main_t *msm = &mac_swap_main; msm->next_node_index_by_sw_if_index = hash_create (0, sizeof (uword)); msm->cached_next_index = (u32) ~ 0; msm->cached_sw_if_index = (u32) ~ 0; msm->vlib_main = vm; msm->vnet_main = vnet_get_main (); /* Driver RX nodes send pkts here... */ #define _(a) ixge_set_next_node (IXGE_RX_NEXT_##a##_INPUT, "mac-swap"); foreach_hw_driver_next #undef _ #define _(a) ixgev_set_next_node (IXGEV_RX_NEXT_##a##_INPUT, "mac-swap"); foreach_hw_driver_next #undef _ #define _(a) ige_set_next_node (IGE_RX_NEXT_##a##_INPUT, "mac-swap"); foreach_hw_driver_next #undef _ return 0; } VLIB_INIT_FUNCTION (mac_swap_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */