From a4f0fa29488e582ab8b5ef9db475b3d26ded690c Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Tue, 27 Nov 2018 10:44:39 +0000 Subject: New upstream version 18.11 Change-Id: I6c63198045de1e34fda8a7b4665d89d5f4a20d20 Signed-off-by: Luca Boccassi --- lib/librte_eal/common/include/rte_bitmap.h | 45 +++-------------------------- lib/librte_eal/common/include/rte_common.h | 32 ++++++++++++++------ lib/librte_eal/common/include/rte_version.h | 4 +-- 3 files changed, 29 insertions(+), 52 deletions(-) (limited to 'lib/librte_eal/common/include') diff --git a/lib/librte_eal/common/include/rte_bitmap.h b/lib/librte_eal/common/include/rte_bitmap.h index 7a36ce73..77727c82 100644 --- a/lib/librte_eal/common/include/rte_bitmap.h +++ b/lib/librte_eal/common/include/rte_bitmap.h @@ -43,10 +43,6 @@ extern "C" { #include #include -#ifndef RTE_BITMAP_OPTIMIZATIONS -#define RTE_BITMAP_OPTIMIZATIONS 1 -#endif - /* Slab */ #define RTE_BITMAP_SLAB_BIT_SIZE 64 #define RTE_BITMAP_SLAB_BIT_SIZE_LOG2 6 @@ -97,43 +93,12 @@ __rte_bitmap_index2_set(struct rte_bitmap *bmp) bmp->index2 = (((bmp->index1 << RTE_BITMAP_SLAB_BIT_SIZE_LOG2) + bmp->offset1) << RTE_BITMAP_CL_SLAB_SIZE_LOG2); } -#if RTE_BITMAP_OPTIMIZATIONS - -static inline int +static inline int __rte_deprecated rte_bsf64(uint64_t slab, uint32_t *pos) { - if (likely(slab == 0)) { - return 0; - } - - *pos = __builtin_ctzll(slab); - return 1; + return rte_bsf64_safe(slab, pos); } -#else - -static inline int -rte_bsf64(uint64_t slab, uint32_t *pos) -{ - uint64_t mask; - uint32_t i; - - if (likely(slab == 0)) { - return 0; - } - - for (i = 0, mask = 1; i < RTE_BITMAP_SLAB_BIT_SIZE; i ++, mask <<= 1) { - if (unlikely(slab & mask)) { - *pos = i; - return 1; - } - } - - return 0; -} - -#endif - static inline uint32_t __rte_bitmap_get_memory_footprint(uint32_t n_bits, uint32_t *array1_byte_offset, uint32_t *array1_slabs, @@ -439,9 +404,8 @@ __rte_bitmap_scan_search(struct rte_bitmap *bmp) value1 = bmp->array1[bmp->index1]; value1 &= __rte_bitmap_mask1_get(bmp); - if (rte_bsf64(value1, &bmp->offset1)) { + if (rte_bsf64_safe(value1, &bmp->offset1)) return 1; - } __rte_bitmap_index1_inc(bmp); bmp->offset1 = 0; @@ -450,9 +414,8 @@ __rte_bitmap_scan_search(struct rte_bitmap *bmp) for (i = 0; i < bmp->array1_size; i ++, __rte_bitmap_index1_inc(bmp)) { value1 = bmp->array1[bmp->index1]; - if (rte_bsf64(value1, &bmp->offset1)) { + if (rte_bsf64_safe(value1, &bmp->offset1)) return 1; - } } return 0; diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h index 87f0f630..66cdf60b 100644 --- a/lib/librte_eal/common/include/rte_common.h +++ b/lib/librte_eal/common/include/rte_common.h @@ -270,16 +270,7 @@ rte_is_aligned(void *ptr, unsigned align) /** * Triggers an error at compilation time if the condition is true. */ -#ifndef __OPTIMIZE__ #define RTE_BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#else -extern int RTE_BUILD_BUG_ON_detected_error; -#define RTE_BUILD_BUG_ON(condition) do { \ - ((void)sizeof(char[1 - 2*!!(condition)])); \ - if (condition) \ - RTE_BUILD_BUG_ON_detected_error = 1; \ -} while(0) -#endif /** * Combines 32b inputs most significant set bits into the least @@ -491,6 +482,29 @@ rte_fls_u32(uint32_t x) return (x == 0) ? 0 : 32 - __builtin_clz(x); } +/** + * Searches the input parameter for the least significant set bit + * (starting from zero). Safe version (checks for input parameter being zero). + * + * @warning ``pos`` must be a valid pointer. It is not checked! + * + * @param v + * The input parameter. + * @param pos + * If ``v`` was not 0, this value will contain position of least significant + * bit within the input parameter. + * @return + * Returns 0 if ``v`` was 0, otherwise returns 1. + */ +static inline int +rte_bsf64_safe(uint64_t v, uint32_t *pos) +{ + if (v == 0) + return 0; + + *pos = __builtin_ctzll(v); + return 1; +} #ifndef offsetof /** Return the offset of a field in a structure. */ diff --git a/lib/librte_eal/common/include/rte_version.h b/lib/librte_eal/common/include/rte_version.h index 45b89430..f01c227f 100644 --- a/lib/librte_eal/common/include/rte_version.h +++ b/lib/librte_eal/common/include/rte_version.h @@ -42,14 +42,14 @@ extern "C" { /** * Extra string to be appended to version number */ -#define RTE_VER_SUFFIX "-rc" +#define RTE_VER_SUFFIX "" /** * Patch release number * 0-15 = release candidates * 16 = release */ -#define RTE_VER_RELEASE 4 +#define RTE_VER_RELEASE 16 /** * Macro to compute a version number usable for comparisons -- cgit 1.2.3-korg