vlib: address vlib_error_t scaling issue - vpp

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author	Steven Luong <sluong@cisco.com>	2019-11-20 11:20:08 -0800
committer	Dave Barach <openvpp@barachs.net>	2019-11-25 15:05:51 +0000
commit	70449b9b9bf8dbe3b4aa4d9af35c759789b03fe1 (patch)
tree	13faf049d3007a5a3314e69680bb6f652cb84529 /src/plugins/marvell/pp2/input.c
parent	ac0e98a67553747b823d8398896559bb07cafe3d (diff)

vlib: address vlib_error_t scaling issuestable/1901

Encoding the vpp node index into the vlib_error_t as a 10-bit quantity limits us to 1K graph nodes. Unfortunately, a few nodes need 6 bit per-node error codes. Only a very few nodes have so many counters. It turns out that there are about 2K total error counters in the system, which is (approximately) the maximum error heap index. The current (index,code) encoding limits the number of interfaces to around 250, since each interface has two associated graph nodes and we have about 500 "normal, interior" graph node This patch adds an error-index to node-index map, so we can store error heap indices directly in the vlib_buffer_t. Type: refactor Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Ic2e91a5b344c9df3b98b264cacda246e06092a94

Diffstat (limited to 'src/plugins/marvell/pp2/input.c')

0 files changed, 0 insertions, 0 deletions

/* * 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. */ #ifndef __GBP_FWD_DPO_H__ #define __GBP_FWD_DPO_H__ #include <vnet/dpo/dpo.h> /** * @brief * The GBP FWD DPO. Used in the L3 path to select the correct EPG uplink * based on the source EPG. */ typedef struct gbp_fwd_dpo_t_ { /** * The protocol of packets using this DPO */ dpo_proto_t gfd_proto; /** * number of locks. */ u16 gfd_locks; } gbp_fwd_dpo_t; extern void gbp_fwd_dpo_add_or_lock (dpo_proto_t dproto, dpo_id_t * dpo); extern dpo_type_t gbp_fwd_dpo_get_type (void); /** * @brief pool of all interface DPOs */ extern gbp_fwd_dpo_t *gbp_fwd_dpo_pool; static inline gbp_fwd_dpo_t * gbp_fwd_dpo_get (index_t index) { return (pool_elt_at_index (gbp_fwd_dpo_pool, index)); } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */ #endif


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