X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fvxlan-gpe%2Fencap.c;h=9006b1b943dcb5c0c37e10941e77b73422f3ba26;hb=ad9d528;hp=3a486e5606efd9eafdda153411bc084638d13f19;hpb=7cd468a3d7dee7d6c92f69a0bb7061ae208ec727;p=vpp.git diff --git a/src/vnet/vxlan-gpe/encap.c b/src/vnet/vxlan-gpe/encap.c index 3a486e5606e..9006b1b943d 100644 --- a/src/vnet/vxlan-gpe/encap.c +++ b/src/vnet/vxlan-gpe/encap.c @@ -31,7 +31,7 @@ _(ENCAPSULATED, "good packets encapsulated") /** * @brief VXLAN GPE encap error strings */ -static char * vxlan_gpe_encap_error_strings[] = { +static char *vxlan_gpe_encap_error_strings[] = { #define _(sym,string) string, foreach_vxlan_gpe_encap_error #undef _ @@ -40,9 +40,10 @@ static char * vxlan_gpe_encap_error_strings[] = { /** * @brief Struct for VXLAN GPE errors/counters */ -typedef enum { +typedef enum +{ #define _(sym,str) VXLAN_GPE_ENCAP_ERROR_##sym, - foreach_vxlan_gpe_encap_error + foreach_vxlan_gpe_encap_error #undef _ VXLAN_GPE_ENCAP_N_ERROR, } vxlan_gpe_encap_error_t; @@ -50,7 +51,8 @@ typedef enum { /** * @brief Struct for tracing VXLAN GPE encapsulated packets */ -typedef struct { +typedef struct +{ u32 tunnel_index; } vxlan_gpe_encap_trace_t; @@ -63,12 +65,12 @@ typedef struct { * @return *s * */ -u8 * format_vxlan_gpe_encap_trace (u8 * s, va_list * args) +u8 * +format_vxlan_gpe_encap_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 *); - vxlan_gpe_encap_trace_t * t - = va_arg (*args, vxlan_gpe_encap_trace_t *); + vxlan_gpe_encap_trace_t *t = va_arg (*args, vxlan_gpe_encap_trace_t *); s = format (s, "VXLAN-GPE-ENCAP: tunnel %d", t->tunnel_index); return s; @@ -86,11 +88,10 @@ u8 * format_vxlan_gpe_encap_trace (u8 * s, va_list * args) */ always_inline void vxlan_gpe_encap_one_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0, - vxlan_gpe_tunnel_t * t0, u32 * next0, - u8 is_v4) + vxlan_gpe_tunnel_t * t0, u32 * next0, u8 is_v4) { - ASSERT(sizeof(ip4_vxlan_gpe_header_t) == 36); - ASSERT(sizeof(ip6_vxlan_gpe_header_t) == 56); + ASSERT (sizeof (ip4_vxlan_gpe_header_t) == 36); + ASSERT (sizeof (ip6_vxlan_gpe_header_t) == 56); ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, is_v4); next0[0] = t0->encap_next_node; @@ -111,12 +112,12 @@ vxlan_gpe_encap_one_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0, */ always_inline void vxlan_gpe_encap_two_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0, - vlib_buffer_t * b1, vxlan_gpe_tunnel_t * t0, - vxlan_gpe_tunnel_t * t1, u32 * next0, - u32 * next1, u8 is_v4) + vlib_buffer_t * b1, vxlan_gpe_tunnel_t * t0, + vxlan_gpe_tunnel_t * t1, u32 * next0, + u32 * next1, u8 is_v4) { - ASSERT(sizeof(ip4_vxlan_gpe_header_t) == 36); - ASSERT(sizeof(ip6_vxlan_gpe_header_t) == 56); + ASSERT (sizeof (ip4_vxlan_gpe_header_t) == 36); + ASSERT (sizeof (ip6_vxlan_gpe_header_t) == 56); ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, is_v4); ip_udp_encap_one (ngm->vlib_main, b1, t1->rewrite, t1->rewrite_size, is_v4); @@ -143,15 +144,14 @@ vxlan_gpe_encap_two_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0, */ static uword vxlan_gpe_encap (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, vlib_frame_t * from_frame) { u32 n_left_from, next_index, *from, *to_next; - vxlan_gpe_main_t * ngm = &vxlan_gpe_main; - vnet_main_t * vnm = ngm->vnet_main; - vnet_interface_main_t * im = &vnm->interface_main; + vxlan_gpe_main_t *ngm = &vxlan_gpe_main; + vnet_main_t *vnm = ngm->vnet_main; + vnet_interface_main_t *im = &vnm->interface_main; u32 pkts_encapsulated = 0; - u32 cpu_index = os_get_cpu_number (); + u32 thread_index = vm->thread_index; u32 stats_sw_if_index, stats_n_packets, stats_n_bytes; from = vlib_frame_vector_args (from_frame); @@ -162,211 +162,248 @@ vxlan_gpe_encap (vlib_main_t * vm, stats_n_packets = stats_n_bytes = 0; 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, len0, len1; - vnet_hw_interface_t * hi0, *hi1; - vxlan_gpe_tunnel_t * t0, *t1; - u8 is_ip4_0, is_ip4_1; - - next0 = next1 = VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP; - - /* 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, 2*CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH(p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD); - } - - bi0 = from[0]; - bi1 = from[1]; - to_next[0] = bi0; - to_next[1] = bi1; - from += 2; - to_next += 2; - n_left_to_next -= 2; - n_left_from -= 2; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - - /* 1-wide cache? */ - sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_TX]; - sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_TX]; - hi0 = vnet_get_sup_hw_interface (vnm, vnet_buffer(b0)->sw_if_index[VLIB_TX]); - hi1 = vnet_get_sup_hw_interface (vnm, vnet_buffer(b1)->sw_if_index[VLIB_TX]); - - t0 = pool_elt_at_index(ngm->tunnels, hi0->dev_instance); - t1 = pool_elt_at_index(ngm->tunnels, hi1->dev_instance); - - is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4); - is_ip4_1 = (t1->flags & VXLAN_GPE_TUNNEL_IS_IPV4); - - if (PREDICT_TRUE(is_ip4_0 == is_ip4_1)) - { - vxlan_gpe_encap_two_inline (ngm, b0, b1, t0, t1, &next0, &next1,is_ip4_0); - } - else - { - vxlan_gpe_encap_one_inline (ngm, b0, t0, &next0, is_ip4_0); - vxlan_gpe_encap_one_inline (ngm, b1, t1, &next1, is_ip4_1); - } - - /* Reset to look up tunnel partner in the configured FIB */ - vnet_buffer(b0)->sw_if_index[VLIB_TX] = t0->encap_fib_index; - vnet_buffer(b1)->sw_if_index[VLIB_TX] = t1->encap_fib_index; - vnet_buffer(b0)->sw_if_index[VLIB_RX] = sw_if_index0; - vnet_buffer(b1)->sw_if_index[VLIB_RX] = sw_if_index1; - pkts_encapsulated += 2; - - len0 = vlib_buffer_length_in_chain (vm, b0); - len1 = vlib_buffer_length_in_chain (vm, b0); - stats_n_packets += 2; - stats_n_bytes += len0 + len1; - - /* Batch stats increment on the same vxlan tunnel so counter is not - incremented per packet. Note stats are still incremented for deleted - and admin-down tunnel where packets are dropped. It is not worthwhile - to check for this rare case and affect normal path performance. */ - if (PREDICT_FALSE((sw_if_index0 != stats_sw_if_index) - || (sw_if_index1 != stats_sw_if_index))) - { - stats_n_packets -= 2; - stats_n_bytes -= len0 + len1; - if (sw_if_index0 == sw_if_index1) - { - if (stats_n_packets) - vlib_increment_combined_counter ( - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX, - cpu_index, stats_sw_if_index, stats_n_packets, stats_n_bytes); - stats_sw_if_index = sw_if_index0; - stats_n_packets = 2; - stats_n_bytes = len0 + len1; - } - else - { - vlib_increment_combined_counter ( - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX, - cpu_index, sw_if_index0, 1, len0); - vlib_increment_combined_counter ( - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX, - cpu_index, sw_if_index1, 1, len1); - } - } - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gpe_encap_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof(*tr)); - tr->tunnel_index = t0 - ngm->tunnels; - } - - if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gpe_encap_trace_t *tr = vlib_add_trace (vm, node, b1, - sizeof(*tr)); - tr->tunnel_index = t1 - ngm->tunnels; - } - - 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 = VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP; - u32 sw_if_index0, len0; - vnet_hw_interface_t * hi0; - vxlan_gpe_tunnel_t * t0; - u8 is_ip4_0; - - 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); - - /* 1-wide cache? */ - sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_TX]; - hi0 = vnet_get_sup_hw_interface (vnm, vnet_buffer(b0)->sw_if_index[VLIB_TX]); - - t0 = pool_elt_at_index(ngm->tunnels, hi0->dev_instance); - - is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4); - - vxlan_gpe_encap_one_inline (ngm, b0, t0, &next0, is_ip4_0); - - /* Reset to look up tunnel partner in the configured FIB */ - vnet_buffer(b0)->sw_if_index[VLIB_TX] = t0->encap_fib_index; - vnet_buffer(b0)->sw_if_index[VLIB_RX] = sw_if_index0; - pkts_encapsulated++; - - len0 = vlib_buffer_length_in_chain (vm, b0); - stats_n_packets += 1; - stats_n_bytes += len0; - - /* Batch stats increment on the same vxlan tunnel so counter is not - * incremented per packet. Note stats are still incremented for deleted - * and admin-down tunnel where packets are dropped. It is not worthwhile - * to check for this rare case and affect normal path performance. */ - if (PREDICT_FALSE(sw_if_index0 != stats_sw_if_index)) - { - stats_n_packets -= 1; - stats_n_bytes -= len0; - if (stats_n_packets) - vlib_increment_combined_counter ( - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX, - cpu_index, stats_sw_if_index, stats_n_packets, stats_n_bytes); - stats_n_packets = 1; - stats_n_bytes = len0; - stats_sw_if_index = sw_if_index0; - } - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gpe_encap_trace_t *tr = vlib_add_trace (vm, node, b0, - sizeof(*tr)); - tr->tunnel_index = t0 - ngm->tunnels; - } - vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, - n_left_to_next, bi0, next0); + u32 n_left_to_next; + u32 sw_if_index0 = ~0, sw_if_index1 = ~0, len0, len1; + vnet_hw_interface_t *hi0, *hi1; + vxlan_gpe_tunnel_t *t0 = NULL, *t1 = NULL; + u8 is_ip4_0 = 0, is_ip4_1 = 0; + + 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; + + next0 = next1 = VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP; + + /* 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, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + } + + bi0 = from[0]; + bi1 = from[1]; + to_next[0] = bi0; + to_next[1] = bi1; + from += 2; + to_next += 2; + n_left_to_next -= 2; + n_left_from -= 2; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + /* get the flag "is_ip4" */ + if (sw_if_index0 != vnet_buffer (b0)->sw_if_index[VLIB_TX]) + { + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX]; + hi0 = + vnet_get_sup_hw_interface (vnm, + vnet_buffer (b0)->sw_if_index + [VLIB_TX]); + t0 = pool_elt_at_index (ngm->tunnels, hi0->dev_instance); + is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4); + } + + /* get the flag "is_ip4" */ + if (sw_if_index1 != vnet_buffer (b1)->sw_if_index[VLIB_TX]) + { + if (sw_if_index0 == vnet_buffer (b1)->sw_if_index[VLIB_TX]) + { + sw_if_index1 = sw_if_index0; + hi1 = hi0; + t1 = t0; + is_ip4_1 = is_ip4_0; + } + else + { + sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_TX]; + hi1 = + vnet_get_sup_hw_interface (vnm, + vnet_buffer (b1)->sw_if_index + [VLIB_TX]); + t1 = pool_elt_at_index (ngm->tunnels, hi1->dev_instance); + is_ip4_1 = (t1->flags & VXLAN_GPE_TUNNEL_IS_IPV4); + } + } + + if (PREDICT_TRUE (is_ip4_0 == is_ip4_1)) + { + vxlan_gpe_encap_two_inline (ngm, b0, b1, t0, t1, &next0, &next1, + is_ip4_0); + } + else + { + vxlan_gpe_encap_one_inline (ngm, b0, t0, &next0, is_ip4_0); + vxlan_gpe_encap_one_inline (ngm, b1, t1, &next1, is_ip4_1); + } + + /* Reset to look up tunnel partner in the configured FIB */ + vnet_buffer (b0)->sw_if_index[VLIB_TX] = t0->encap_fib_index; + vnet_buffer (b1)->sw_if_index[VLIB_TX] = t1->encap_fib_index; + vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0; + vnet_buffer (b1)->sw_if_index[VLIB_RX] = sw_if_index1; + pkts_encapsulated += 2; + + len0 = vlib_buffer_length_in_chain (vm, b0); + len1 = vlib_buffer_length_in_chain (vm, b1); + stats_n_packets += 2; + stats_n_bytes += len0 + len1; + + /* Batch stats increment on the same vxlan tunnel so counter is not + incremented per packet. Note stats are still incremented for deleted + and admin-down tunnel where packets are dropped. It is not worthwhile + to check for this rare case and affect normal path performance. */ + if (PREDICT_FALSE ((sw_if_index0 != stats_sw_if_index) + || (sw_if_index1 != stats_sw_if_index))) + { + stats_n_packets -= 2; + stats_n_bytes -= len0 + len1; + if (sw_if_index0 == sw_if_index1) + { + if (stats_n_packets) + vlib_increment_combined_counter + (im->combined_sw_if_counters + + VNET_INTERFACE_COUNTER_TX, thread_index, + stats_sw_if_index, stats_n_packets, stats_n_bytes); + stats_sw_if_index = sw_if_index0; + stats_n_packets = 2; + stats_n_bytes = len0 + len1; + } + else + { + vlib_increment_combined_counter (im->combined_sw_if_counters + + + VNET_INTERFACE_COUNTER_TX, + thread_index, sw_if_index0, + 1, len0); + vlib_increment_combined_counter (im->combined_sw_if_counters + + + VNET_INTERFACE_COUNTER_TX, + thread_index, sw_if_index1, + 1, len1); + } + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_gpe_encap_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->tunnel_index = t0 - ngm->tunnels; + } + + if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_gpe_encap_trace_t *tr = vlib_add_trace (vm, node, b1, + sizeof (*tr)); + tr->tunnel_index = t1 - ngm->tunnels; + } + + 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 = VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP; + + 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); + + /* get the flag "is_ip4" */ + if (sw_if_index0 != vnet_buffer (b0)->sw_if_index[VLIB_TX]) + { + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX]; + hi0 = + vnet_get_sup_hw_interface (vnm, + vnet_buffer (b0)->sw_if_index + [VLIB_TX]); + + t0 = pool_elt_at_index (ngm->tunnels, hi0->dev_instance); + + is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4); + } + + vxlan_gpe_encap_one_inline (ngm, b0, t0, &next0, is_ip4_0); + + /* Reset to look up tunnel partner in the configured FIB */ + vnet_buffer (b0)->sw_if_index[VLIB_TX] = t0->encap_fib_index; + vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0; + pkts_encapsulated++; + + len0 = vlib_buffer_length_in_chain (vm, b0); + stats_n_packets += 1; + stats_n_bytes += len0; + + /* Batch stats increment on the same vxlan tunnel so counter is not + * incremented per packet. Note stats are still incremented for deleted + * and admin-down tunnel where packets are dropped. It is not worthwhile + * to check for this rare case and affect normal path performance. */ + if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index)) + { + stats_n_packets -= 1; + stats_n_bytes -= len0; + if (stats_n_packets) + vlib_increment_combined_counter (im->combined_sw_if_counters + + VNET_INTERFACE_COUNTER_TX, + thread_index, + stats_sw_if_index, + stats_n_packets, + stats_n_bytes); + stats_n_packets = 1; + stats_n_bytes = len0; + stats_sw_if_index = sw_if_index0; + } + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_gpe_encap_trace_t *tr = vlib_add_trace (vm, node, b0, + sizeof (*tr)); + tr->tunnel_index = t0 - ngm->tunnels; + } + 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_put_next_frame (vm, node, next_index, n_left_to_next); - } vlib_node_increment_counter (vm, node->node_index, - VXLAN_GPE_ENCAP_ERROR_ENCAPSULATED, - pkts_encapsulated); + VXLAN_GPE_ENCAP_ERROR_ENCAPSULATED, + pkts_encapsulated); /* Increment any remaining batch stats */ if (stats_n_packets) - { - vlib_increment_combined_counter ( - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX, cpu_index, - stats_sw_if_index, stats_n_packets, stats_n_bytes); - node->runtime_data[0] = stats_sw_if_index; - } + { + vlib_increment_combined_counter (im->combined_sw_if_counters + + VNET_INTERFACE_COUNTER_TX, + thread_index, stats_sw_if_index, + stats_n_packets, stats_n_bytes); + node->runtime_data[0] = stats_sw_if_index; + } return from_frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (vxlan_gpe_encap_node) = { .function = vxlan_gpe_encap, .name = "vxlan-gpe-encap", @@ -385,4 +422,13 @@ VLIB_REGISTER_NODE (vxlan_gpe_encap_node) = { [VXLAN_GPE_ENCAP_NEXT_DROP] = "error-drop", }, }; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */