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flow.c: Improve minimask_equal() and minimask_has_extra().

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minimask_equal() and minimask_has_extra() can take benefit from the
fact that minimasks have no zero data.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Jarno Rajahalme
2014-11-26 15:17:26 -08:00
parent 03690ebb2b
commit f4d335e985
2 changed files with 27 additions and 11 deletions
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11
lib/flow.h
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@@ -551,13 +551,20 @@ mf_get_next_in_map(struct mf_for_each_in_map_aux *aux, uint32_t *value)
mf_get_next_in_map(&aux__, &(VALUE)); \
)
/* This can be used when it is known that 'u32_idx' is set in 'map'. */
static inline uint32_t
miniflow_values_get__(const uint32_t *values, uint64_t map, int u32_idx)
{
return values[count_1bits(map & ((UINT64_C(1) << u32_idx) - 1))];
}
/* This can be used when it is known that 'u32_idx' is set in
* the map of 'mf'. */
static inline uint32_t
miniflow_get__(const struct miniflow *mf, int u32_idx)
{
return miniflow_get_u32_values(mf)
[count_1bits(mf->map & ((UINT64_C(1) << u32_idx) - 1))];
return miniflow_values_get__(miniflow_get_u32_values(mf), mf->map,
u32_idx);
}
/* Get the value of 'FIELD' of an up to 4 byte wide integer type 'TYPE' of