From: Vivek Sharma <vivek.sharma@caviumnetworks.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
"cristian.dumitrescu@intel.com" <cristian.dumitrescu@intel.com>,
"Sharma, Vivek" <Vivek.Sharma@cavium.com>
Subject: [dpdk-stable] [PATCH v2] eal: use correct data type for bitmap slab operations
Date: Tue, 25 Sep 2018 09:53:06 +0000 [thread overview]
Message-ID: <1537869163-3650-1-git-send-email-vivek.sharma@caviumnetworks.com> (raw)
In-Reply-To: <1537803523-23347-1-git-send-email-vivek.sharma@caviumnetworks.com>
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 <vivek.sharma@caviumnetworks.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
---
v1-->v2:
* Added Acked-by:
* check-git-log.sh fixes.
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 d9facc6..7a36ce7 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 c3169e9..95c5184 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;
}
--
2.7.4
next prev parent reply other threads:[~2018-09-25 9:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-24 15:38 [dpdk-stable] [PATCH v1] eal: use correct data type for " Vivek Sharma
2018-09-24 15:50 ` Vivek Sharma
2018-09-24 17:12 ` Dumitrescu, Cristian
2018-10-08 15:57 ` Dumitrescu, Cristian
2018-09-25 9:53 ` Vivek Sharma [this message]
2018-09-25 12:38 ` Luca Boccassi
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