a121ac599a
- improve format and unformat of bandwidth and delay - integer packet size - track worker wheel size as config Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I616fa96237c5e06d9c809bb5c2e0bed0447f2c4d
134 lines
2.8 KiB
C
134 lines
2.8 KiB
C
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/*
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* nsim.h - skeleton vpp engine plug-in header file
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*
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* Copyright (c) <current-year> <your-organization>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __included_nsim_h__
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#define __included_nsim_h__
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#include <vnet/vnet.h>
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#include <vnet/ip/ip.h>
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#include <vnet/ethernet/ethernet.h>
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#include <vppinfra/hash.h>
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#include <vppinfra/error.h>
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#define NSIM_MAX_TX_BURST 32 /**< max packets in a tx burst */
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typedef struct
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{
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f64 tx_time;
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u32 rx_sw_if_index;
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u32 tx_sw_if_index;
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u32 output_next_index;
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u32 buffer_index;
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u32 pad; /* pad to 32-bytes */
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} nsim_wheel_entry_t;
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typedef struct
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{
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u32 wheel_size;
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u32 cursize;
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u32 head;
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u32 tail;
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nsim_wheel_entry_t *entries;
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CLIB_CACHE_LINE_ALIGN_MARK (pad);
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} nsim_wheel_t;
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typedef struct nsim_node_ctx
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{
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vnet_feature_config_main_t *fcm;
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f64 expires;
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u32 *drop;
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u32 *reord;
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u16 *reord_nexts;
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u8 *action;
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u64 n_buffered;
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u64 n_loss;
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} nsim_node_ctx_t;
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#define foreach_nsm_action \
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_(DROP, "Packet loss") \
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_(REORDER, "Packet reorder")
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enum nsm_action_bit
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{
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#define _(sym, str) NSIM_ACTION_##sym##_BIT,
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foreach_nsm_action
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#undef _
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};
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typedef enum nsm_action
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{
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#define _(sym, str) NSIM_ACTION_##sym = 1 << NSIM_ACTION_##sym##_BIT,
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foreach_nsm_action
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#undef _
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} nsm_action_e;
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typedef struct
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{
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/* API message ID base */
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u16 msg_id_base;
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/* output feature arc index */
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u16 arc_index;
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/* Two interfaces, cross-connected with delay */
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u32 sw_if_index0, sw_if_index1;
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u32 output_next_index0, output_next_index1;
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/* N interfaces, using the output feature */
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u32 *output_next_index_by_sw_if_index;
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/* Random seed for loss-rate simulation */
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u32 seed;
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/* Per-thread scheduler wheels */
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nsim_wheel_t **wheel_by_thread;
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/* Config parameters */
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f64 delay;
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f64 bandwidth;
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f64 drop_fraction;
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f64 reorder_fraction;
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u32 packet_size;
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u32 wheel_slots_per_wrk;
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u32 poll_main_thread;
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u64 mmap_size;
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/* Wheels are configured */
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int is_configured;
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/* convenience */
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vlib_main_t *vlib_main;
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vnet_main_t *vnet_main;
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} nsim_main_t;
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extern nsim_main_t nsim_main;
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extern vlib_node_registration_t nsim_node;
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extern vlib_node_registration_t nsim_input_node;
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#endif /* __included_nsim_h__ */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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