From bed70e5deb1bc927c5adb375d15c1d32c6c137d8 Mon Sep 17 00:00:00 2001 From: Vivek Sharma Date: Tue, 25 Sep 2018 09:53:06 +0000 Subject: [PATCH] eal: use correct data type for bitmap slab operations Currently, slab operations use unsigned long data type for 64-bit slab related operations. On target 'i686-native-linuxapp-gcc', unsigned long is 32-bit and thus, slab operations breaks on this target. Changing slab operations to use unsigned long long for correct functioning on all targets. Fixes: de3cfa2c9823 ("sched: initial import") Fixes: 693f715da45c ("remove extra parentheses in return statement") Cc: stable@dpdk.org Signed-off-by: Vivek Sharma Acked-by: Cristian Dumitrescu --- lib/librte_eal/common/include/rte_bitmap.h | 14 +++++++------- test/test/test_bitmap.c | 18 ++++++++++++++++++ 2 files changed, 25 insertions(+), 7 deletions(-) diff --git a/lib/librte_eal/common/include/rte_bitmap.h b/lib/librte_eal/common/include/rte_bitmap.h index d9facc642d..7a36ce73c6 100644 --- a/lib/librte_eal/common/include/rte_bitmap.h +++ b/lib/librte_eal/common/include/rte_bitmap.h @@ -88,7 +88,7 @@ __rte_bitmap_index1_inc(struct rte_bitmap *bmp) static inline uint64_t __rte_bitmap_mask1_get(struct rte_bitmap *bmp) { - return (~1lu) << bmp->offset1; + return (~1llu) << bmp->offset1; } static inline void @@ -317,7 +317,7 @@ rte_bitmap_get(struct rte_bitmap *bmp, uint32_t pos) index2 = pos >> RTE_BITMAP_SLAB_BIT_SIZE_LOG2; offset2 = pos & RTE_BITMAP_SLAB_BIT_MASK; slab2 = bmp->array2 + index2; - return (*slab2) & (1lu << offset2); + return (*slab2) & (1llu << offset2); } /** @@ -342,8 +342,8 @@ rte_bitmap_set(struct rte_bitmap *bmp, uint32_t pos) slab2 = bmp->array2 + index2; slab1 = bmp->array1 + index1; - *slab2 |= 1lu << offset2; - *slab1 |= 1lu << offset1; + *slab2 |= 1llu << offset2; + *slab1 |= 1llu << offset1; } /** @@ -370,7 +370,7 @@ rte_bitmap_set_slab(struct rte_bitmap *bmp, uint32_t pos, uint64_t slab) slab1 = bmp->array1 + index1; *slab2 |= slab; - *slab1 |= 1lu << offset1; + *slab1 |= 1llu << offset1; } static inline uint64_t @@ -408,7 +408,7 @@ rte_bitmap_clear(struct rte_bitmap *bmp, uint32_t pos) slab2 = bmp->array2 + index2; /* Return if array2 slab is not all-zeros */ - *slab2 &= ~(1lu << offset2); + *slab2 &= ~(1llu << offset2); if (*slab2){ return; } @@ -424,7 +424,7 @@ rte_bitmap_clear(struct rte_bitmap *bmp, uint32_t pos) index1 = pos >> (RTE_BITMAP_SLAB_BIT_SIZE_LOG2 + RTE_BITMAP_CL_BIT_SIZE_LOG2); offset1 = (pos >> RTE_BITMAP_CL_BIT_SIZE_LOG2) & RTE_BITMAP_SLAB_BIT_MASK; slab1 = bmp->array1 + index1; - *slab1 &= ~(1lu << offset1); + *slab1 &= ~(1llu << offset1); return; } diff --git a/test/test/test_bitmap.c b/test/test/test_bitmap.c index c3169e9d55..95c5184882 100644 --- a/test/test/test_bitmap.c +++ b/test/test/test_bitmap.c @@ -101,6 +101,7 @@ test_bitmap_slab_set_get(struct rte_bitmap *bmp) static int test_bitmap_set_get_clear(struct rte_bitmap *bmp) { + uint64_t val; int i; rte_bitmap_reset(bmp); @@ -124,6 +125,23 @@ test_bitmap_set_get_clear(struct rte_bitmap *bmp) } } + rte_bitmap_reset(bmp); + + /* Alternate slab set test */ + for (i = 0; i < MAX_BITS; i++) { + if (i % RTE_BITMAP_SLAB_BIT_SIZE) + rte_bitmap_set(bmp, i); + } + + for (i = 0; i < MAX_BITS; i++) { + val = rte_bitmap_get(bmp, i); + if (((i % RTE_BITMAP_SLAB_BIT_SIZE) && !val) || + (!(i % RTE_BITMAP_SLAB_BIT_SIZE) && val)) { + printf("Failed to get set bit.\n"); + return TEST_FAILED; + } + } + return TEST_SUCCESS; } -- 2.20.1