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authorNeale Ranns <nranns@cisco.com>2017-11-25 15:20:26 -0800
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-26 19:16:30 +0000
commit84517cfd1508f6da24937f310f7fffe752f22584 (patch)
treed26e98ec23ddf2cdcc573b39650a49c890ca2bd7 /src/vnet/fib/fib_entry_src.h
parent630b9741659b9a4b68c64ebbeb675761c6f26842 (diff)
FIB: optimise for src memory allocations
Most FIB entries will only ever have one source providing forwarding information. Currently the source infom is stored in a vector of sources on the FIB entry. Change this to a union of one source inline and a vector. This saves the need to alloc a vector of sources for each FIB entry. before: vpp# ip route add count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 4.392857e5 routes/sec vpp# ip route del count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 9.175464e5 routes/sec vpp# ip route add count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 5.193375e5 routes/sec vpp# sh fib mem FIB memory Name Size in-use /allocated totals Entry 72 1500011/ 1500011 108000792/108000792 Entry Source 32 1500011/ 1500011 48000352/48000352 after: vpp# ip route add count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 4.726560e5 routes/sec vpp# ip route del count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 1.041629e6 routes/sec vpp# ip route add count 1500000 1.0.0.1/32 via 10.10.10.2 loop0 5.702895e5 routes/sec vpp# sh fib mem FIB memory Name Size in-use /allocated totals Entry 96 1500011/ 1500011 144001056/144001056 Entry Source 32 0 / 0 0/0 Change-Id: Ic71e413eaff1ec152656beda3b94186f7894ea49 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/fib/fib_entry_src.h')
-rw-r--r--src/vnet/fib/fib_entry_src.h70
1 files changed, 48 insertions, 22 deletions
diff --git a/src/vnet/fib/fib_entry_src.h b/src/vnet/fib/fib_entry_src.h
index 35c43936a1f..a19fae10a1c 100644
--- a/src/vnet/fib/fib_entry_src.h
+++ b/src/vnet/fib/fib_entry_src.h
@@ -105,15 +105,6 @@ typedef fib_entry_src_cover_res_t (*fib_entry_src_cover_update_t)(
const fib_entry_t *fib_entry);
/**
- * Forwarding updated. Notification that the forwarding information for the
- * entry has been updated. This notification is sent to all sources, not just
- * the active best.
- */
-typedef void (*fib_entry_src_fwd_update_t)(fib_entry_src_t *src,
- const fib_entry_t *fib_entry,
- fib_source_t best_source);
-
-/**
* Installed. Notification that the source is now installed as
* the entry's forwarding source.
*/
@@ -182,22 +173,56 @@ typedef struct fib_entry_src_vft_t_ {
fib_entry_src_cover_update_t fesv_cover_update;
fib_entry_src_format_t fesv_format;
fib_entry_src_installed_t fesv_installed;
- fib_entry_src_fwd_update_t fesv_fwd_update;
fib_entry_src_get_data_t fesv_get_data;
fib_entry_src_set_data_t fesv_set_data;
} fib_entry_src_vft_t;
-#define FOR_EACH_SRC_ADDED(_entry, _src, _source, action) \
-{ \
- vec_foreach(_src, _entry->fe_srcs) \
- { \
- if (_src->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED) { \
- _source = _src->fes_src; \
- do { \
- action; \
- } while(0); \
- } \
- } \
+#define FOR_EACH_SRC_ADDED(_entry, _src, _source, action) \
+{ \
+ if (fib_entry_has_multiple_srcs(_entry)) \
+ { \
+ vec_foreach(_src, _entry->fe_u_src.fe_srcs) \
+ { \
+ if (_src->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED) { \
+ _source = _src->fes_src; \
+ do { \
+ action; \
+ } while(0); \
+ } \
+ } \
+ } \
+ else \
+ { \
+ _src = &_entry->fe_u_src.fe_src; \
+ if (_src->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED) { \
+ _source = _src->fes_src; \
+ do { \
+ action; \
+ } while(0); \
+ } \
+ } \
+}
+
+#define FOR_EACH_SRC(_entry, _src, _source, action) \
+{ \
+ if (fib_entry_has_multiple_srcs(_entry)) \
+ { \
+ vec_foreach(_src, _entry->fe_u_src.fe_srcs) \
+ { \
+ _source = _src->fes_src; \
+ do { \
+ action; \
+ } while(0); \
+ } \
+ } \
+ else \
+ { \
+ _src = &_entry->fe_u_src.fe_src; \
+ _source = _src->fes_src; \
+ do { \
+ action; \
+ } while(0); \
+ } \
}
extern u8* fib_entry_src_format(fib_entry_t *entry,
@@ -260,7 +285,7 @@ extern fib_entry_src_flag_t fib_entry_src_action_path_remove(fib_entry_t *fib_en
fib_source_t source,
const fib_route_path_t *path);
-extern void fib_entry_src_action_installed(const fib_entry_t *fib_entry,
+extern void fib_entry_src_action_installed(fib_entry_t *fib_entry,
fib_source_t source);
extern fib_forward_chain_type_t fib_entry_get_default_chain_type(
@@ -279,6 +304,7 @@ extern void fib_entry_src_mk_lb (fib_entry_t *fib_entry,
extern fib_protocol_t fib_entry_get_proto(const fib_entry_t * fib_entry);
extern dpo_proto_t fib_entry_get_dpo_proto(const fib_entry_t * fib_entry);
+extern u32 fib_entry_has_multiple_srcs(const fib_entry_t * fib_entry);
/*
* Per-source registration. declared here so we save a separate .h file for each