Add config option to use dlmalloc instead of mheap - vpp

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author	Dave Barach <dave@barachs.net>	2018-07-04 10:56:23 -0400
committer	Damjan Marion <dmarion@me.com>	2018-07-18 12:09:42 +0000
commit	6a5adc369591fcac2447e9809deaa22f56b53911 (patch)
tree	c9a56b1ed0d5e8eb2f21a843552c6c0bc6df5597 /src/examples/sample-plugin
parent	2a3fb1a28b170ac1d37815983611e83d148811d4 (diff)

Add config option to use dlmalloc instead of mheap

Configure w/ --enable-dlmalloc, see .../build-data/platforms/vpp.mk src/vppinfra/dlmalloc.[ch] are slightly modified versions of the well-known Doug Lea malloc. Main advantage: dlmalloc mspaces have no inherent size limit. Change-Id: I19b3f43f3c65bcfb82c1a265a97922d01912446e Signed-off-by: Dave Barach <dave@barachs.net>

Diffstat (limited to 'src/examples/sample-plugin')

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src/examples/sample-plugin/Makefile.am

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src/examples/sample-plugin/configure.ac

2 files changed, 14 insertions, 1 deletions

/* * Copyright (c) 2015 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 included_ip_ip_source_and_port_range_check_h #define included_ip_ip_source_and_port_range_check_h typedef struct { /* convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; } source_range_check_main_t; extern source_range_check_main_t source_range_check_main; typedef enum { IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_OUT, IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_OUT, IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_IN, IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_IN, IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS, } ip_source_and_port_range_check_protocol_t; typedef struct { u32 fib_index[IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS]; } ip_source_and_port_range_check_config_t; #define IP_SOURCE_AND_PORT_RANGE_CHECK_RANGE_LIMIT VLIB_BUFFER_PRE_DATA_SIZE/(2*sizeof(u16x8)); typedef struct { union { u16x8 as_u16x8; u16 as_u16[8]; }; } u16x8vec_t; typedef struct { u16x8vec_t low; u16x8vec_t hi; } protocol_port_range_t; /** * @brief The number of supported ranges per-data path object. * If more ranges are required, bump this number. */ #define N_PORT_RANGES_PER_DPO 64 #define N_RANGES_PER_BLOCK (sizeof(u16x8vec_t)/2) #define N_BLOCKS_PER_DPO (N_PORT_RANGES_PER_DPO/N_RANGES_PER_BLOCK) /** * @brief * The object that is in the data-path to perform the check. * * Some trade-offs here; memory vs performance. * * performance: * the principle factor is d-cache line misses/hits. * so we want the data layout to minimise the d-cache misses. This * means not following dependent reads. i.e. not doing * * struct B { * u16 n_ranges; * range_t *ranges; // vector of ranges. * } * * so to read ranges[0] we would first d-cache miss on the address * of the object of type B, for which we would need to wait before we * can get the address of B->ranges. * So this layout is better: * * struct B { * u16 n_ranges; * range_t ranges[N]; * } * * memory: * the latter layout above is more memory hungry. And N needs to be: * 1 - sized for the maximum required * 2 - fixed, so that objects of type B can be pool allocated and so * 'get'-able using an index. * An option over fixed might be to allocate contiguous chunk from * the pool (like we used to do for multi-path adjs). */ typedef struct protocol_port_range_dpo_t_ { /** * Required for pool_get_aligned */ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /** * The number of blocks from the 'block' array below * that have ranges configured. We keep this count so that in the data-path * we can limit the loop to be only over the blocks we need */ u16 n_used_blocks; /** * The total number of free ranges from all blocks. * Used to prevent overrun of the ranges available. */ u16 n_free_ranges; /** * the fixed size array of ranges */ protocol_port_range_t blocks[N_BLOCKS_PER_DPO]; } protocol_port_range_dpo_t; int ip4_source_and_port_range_check_add_del (ip4_address_t * address, u32 length, u32 vrf_id, u16 * low_ports, u16 * hi_ports, int is_add); // This will be moved to another file in another patch -- for API freeze int ip6_source_and_port_range_check_add_del (ip6_address_t * address, u32 length, u32 vrf_id, u16 * low_ports, u16 * hi_ports, int is_add); int set_ip_source_and_port_range_check (vlib_main_t * vm, u32 * fib_index, u32 sw_if_index, u32 is_add); #endif /* included ip_source_and_port_range_check_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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