/* * nsim.h - skeleton vpp engine plug-in header file * * Copyright (c) <current-year> <your-organization> * 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. */ #ifndef __included_nsim_h__ #define __included_nsim_h__ #include <vnet/vnet.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> #include <vppinfra/hash.h> #include <vppinfra/error.h> #define NSIM_MAX_TX_BURST 32 /**< max packets in a tx burst */ typedef struct { f64 tx_time; u32 rx_sw_if_index; u32 tx_sw_if_index; u32 output_next_index; u32 buffer_index; u32 pad; /* pad to 32-bytes */ } nsim_wheel_entry_t; typedef struct { u32 wheel_size; u32 cursize; u32 head; u32 tail; nsim_wheel_entry_t *entries; CLIB_CACHE_LINE_ALIGN_MARK (pad); } nsim_wheel_t; typedef struct nsim_node_ctx { vnet_feature_config_main_t *fcm; f64 expires; u32 *drop; u32 *reord; u16 *reord_nexts; u8 *action; u64 n_buffered; u64 n_loss; } nsim_node_ctx_t; #define foreach_nsm_action \ _(DROP, "Packet loss") \ _(REORDER, "Packet reorder") enum nsm_action_bit { #define _(sym, str) NSIM_ACTION_##sym##_BIT, foreach_nsm_action #undef _ }; typedef enum nsm_action { #define _(sym, str) NSIM_ACTION_##sym = 1 << NSIM_ACTION_##sym##_BIT, foreach_nsm_action #undef _ } nsm_action_e; typedef struct { /* API message ID base */ u16 msg_id_base; /* output feature arc index */ u16 arc_index; /* Two interfaces, cross-connected with delay */ u32 sw_if_index0, sw_if_index1; u32 output_next_index0, output_next_index1; /* N interfaces, using the output feature */ u32 *output_next_index_by_sw_if_index; /* Random seed for loss-rate simulation */ u32 seed; /* Per-thread scheduler wheels */ nsim_wheel_t **wheel_by_thread; /* Config parameters */ f64 delay; f64 bandwidth; f64 packet_size; f64 drop_fraction; f64 reorder_fraction; u32 poll_main_thread; u64 mmap_size; /* Wheels are configured */ int is_configured; /* convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; } nsim_main_t; extern nsim_main_t nsim_main; extern vlib_node_registration_t nsim_node; extern vlib_node_registration_t nsim_input_node; #endif /* __included_nsim_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */