diff options
Diffstat (limited to 'extras/deprecated/plugins/gbp/gbp_fwd_dpo.c')
| -rw-r--r-- | extras/deprecated/plugins/gbp/gbp_fwd_dpo.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/extras/deprecated/plugins/gbp/gbp_fwd_dpo.c b/extras/deprecated/plugins/gbp/gbp_fwd_dpo.c new file mode 100644 index 00000000000..b1023f5e78f --- /dev/null +++ b/extras/deprecated/plugins/gbp/gbp_fwd_dpo.c @@ -0,0 +1,306 @@ +/* + * 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 <plugins/gbp/gbp.h> +#include <plugins/gbp/gbp_fwd_dpo.h> + +#include <vnet/ethernet/ethernet.h> + + +#ifndef CLIB_MARCH_VARIANT +/** + * The 'DB' of GBP FWD DPOs. + * There is one per-proto + */ +static index_t gbp_fwd_dpo_db[DPO_PROTO_NUM] = { INDEX_INVALID }; + +/** + * DPO type registered for these GBP FWD + */ +static dpo_type_t gbp_fwd_dpo_type; + +/** + * @brief pool of all interface DPOs + */ +gbp_fwd_dpo_t *gbp_fwd_dpo_pool; + +static gbp_fwd_dpo_t * +gbp_fwd_dpo_alloc (void) +{ + gbp_fwd_dpo_t *gfd; + + pool_get (gbp_fwd_dpo_pool, gfd); + + return (gfd); +} + +static inline gbp_fwd_dpo_t * +gbp_fwd_dpo_get_from_dpo (const dpo_id_t * dpo) +{ + ASSERT (gbp_fwd_dpo_type == dpo->dpoi_type); + + return (gbp_fwd_dpo_get (dpo->dpoi_index)); +} + +static inline index_t +gbp_fwd_dpo_get_index (gbp_fwd_dpo_t * gfd) +{ + return (gfd - gbp_fwd_dpo_pool); +} + +static void +gbp_fwd_dpo_lock (dpo_id_t * dpo) +{ + gbp_fwd_dpo_t *gfd; + + gfd = gbp_fwd_dpo_get_from_dpo (dpo); + gfd->gfd_locks++; +} + +static void +gbp_fwd_dpo_unlock (dpo_id_t * dpo) +{ + gbp_fwd_dpo_t *gfd; + + gfd = gbp_fwd_dpo_get_from_dpo (dpo); + gfd->gfd_locks--; + + if (0 == gfd->gfd_locks) + { + gbp_fwd_dpo_db[gfd->gfd_proto] = INDEX_INVALID; + pool_put (gbp_fwd_dpo_pool, gfd); + } +} + +void +gbp_fwd_dpo_add_or_lock (dpo_proto_t dproto, dpo_id_t * dpo) +{ + gbp_fwd_dpo_t *gfd; + + if (INDEX_INVALID == gbp_fwd_dpo_db[dproto]) + { + gfd = gbp_fwd_dpo_alloc (); + + gfd->gfd_proto = dproto; + + gbp_fwd_dpo_db[dproto] = gbp_fwd_dpo_get_index (gfd); + } + else + { + gfd = gbp_fwd_dpo_get (gbp_fwd_dpo_db[dproto]); + } + + dpo_set (dpo, gbp_fwd_dpo_type, dproto, gbp_fwd_dpo_get_index (gfd)); +} + +u8 * +format_gbp_fwd_dpo (u8 * s, va_list * ap) +{ + index_t index = va_arg (*ap, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*ap, u32); + gbp_fwd_dpo_t *gfd = gbp_fwd_dpo_get (index); + + return (format (s, "gbp-fwd-dpo: %U", format_dpo_proto, gfd->gfd_proto)); +} + +const static dpo_vft_t gbp_fwd_dpo_vft = { + .dv_lock = gbp_fwd_dpo_lock, + .dv_unlock = gbp_fwd_dpo_unlock, + .dv_format = format_gbp_fwd_dpo, +}; + +/** + * @brief The per-protocol VLIB graph nodes that are assigned to a glean + * object. + * + * this means that these graph nodes are ones from which a glean is the + * parent object in the DPO-graph. + */ +const static char *const gbp_fwd_dpo_ip4_nodes[] = { + "ip4-gbp-fwd-dpo", + NULL, +}; + +const static char *const gbp_fwd_dpo_ip6_nodes[] = { + "ip6-gbp-fwd-dpo", + NULL, +}; + +const static char *const *const gbp_fwd_dpo_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = gbp_fwd_dpo_ip4_nodes, + [DPO_PROTO_IP6] = gbp_fwd_dpo_ip6_nodes, +}; + +dpo_type_t +gbp_fwd_dpo_get_type (void) +{ + return (gbp_fwd_dpo_type); +} + +static clib_error_t * +gbp_fwd_dpo_module_init (vlib_main_t * vm) +{ + dpo_proto_t dproto; + + FOR_EACH_DPO_PROTO (dproto) + { + gbp_fwd_dpo_db[dproto] = INDEX_INVALID; + } + + gbp_fwd_dpo_type = dpo_register_new_type (&gbp_fwd_dpo_vft, + gbp_fwd_dpo_nodes); + + return (NULL); +} + +VLIB_INIT_FUNCTION (gbp_fwd_dpo_module_init); +#endif /* CLIB_MARCH_VARIANT */ + +typedef struct gbp_fwd_dpo_trace_t_ +{ + u32 sclass; + u32 dpo_index; +} gbp_fwd_dpo_trace_t; + +typedef enum +{ + GBP_FWD_DROP, + GBP_FWD_FWD, + GBP_FWD_N_NEXT, +} gbp_fwd_next_t; + +always_inline uword +gbp_fwd_dpo_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame, fib_protocol_t fproto) +{ + u32 n_left_from, next_index, *from, *to_next; + + from = vlib_frame_vector_args (from_frame); + n_left_from = 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 > 0 && n_left_to_next > 0) + { + const dpo_id_t *next_dpo0; + vlib_buffer_t *b0; + sclass_t sclass0; + u32 bi0, next0; + + 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); + + sclass0 = vnet_buffer2 (b0)->gbp.sclass; + next_dpo0 = gbp_epg_dpo_lookup (sclass0, fproto); + + if (PREDICT_TRUE (NULL != next_dpo0)) + { + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = next_dpo0->dpoi_index; + next0 = GBP_FWD_FWD; + } + else + { + next0 = GBP_FWD_DROP; + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + gbp_fwd_dpo_trace_t *tr; + + tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->sclass = sclass0; + tr->dpo_index = (NULL != next_dpo0 ? + next_dpo0->dpoi_index : ~0); + } + + 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 from_frame->n_vectors; +} + +static u8 * +format_gbp_fwd_dpo_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 *); + gbp_fwd_dpo_trace_t *t = va_arg (*args, gbp_fwd_dpo_trace_t *); + + s = format (s, " sclass:%d dpo:%d", t->sclass, t->dpo_index); + + return s; +} + +VLIB_NODE_FN (ip4_gbp_fwd_dpo_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return (gbp_fwd_dpo_inline (vm, node, from_frame, FIB_PROTOCOL_IP4)); +} + +VLIB_NODE_FN (ip6_gbp_fwd_dpo_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return (gbp_fwd_dpo_inline (vm, node, from_frame, FIB_PROTOCOL_IP6)); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip4_gbp_fwd_dpo_node) = { + .name = "ip4-gbp-fwd-dpo", + .vector_size = sizeof (u32), + .format_trace = format_gbp_fwd_dpo_trace, + .n_next_nodes = GBP_FWD_N_NEXT, + .next_nodes = + { + [GBP_FWD_DROP] = "ip4-drop", + [GBP_FWD_FWD] = "ip4-dvr-dpo", + } +}; +VLIB_REGISTER_NODE (ip6_gbp_fwd_dpo_node) = { + .name = "ip6-gbp-fwd-dpo", + .vector_size = sizeof (u32), + .format_trace = format_gbp_fwd_dpo_trace, + .n_next_nodes = GBP_FWD_N_NEXT, + .next_nodes = + { + [GBP_FWD_DROP] = "ip6-drop", + [GBP_FWD_FWD] = "ip6-dvr-dpo", + } +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |