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From: Santosh Shukla <santosh.shukla@caviumnetworks.com>
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Santosh Shukla <santosh.shukla@caviumnetworks.com>
Date: Thu, 20 Jul 2017 19:17:57 +0530
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Subject: [dpdk-dev] [PATCH v3 4/6] mempool: add mempool arg in xmem size and
usage
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xmem_size and xmem_usage need to know the status of mp->flag.
Following patch will make use of that.
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
---
v1 -- v2:
- added new mempool param in xmem_size/usage, Per deprecation notice [1]
and discussion based on thread [2]
[1] http://dpdk.org/dev/patchwork/patch/26872/
[2] http://dpdk.org/dev/patchwork/patch/25605/
drivers/net/xenvirt/rte_mempool_gntalloc.c | 5 +++--
lib/librte_mempool/rte_mempool.c | 10 ++++++----
lib/librte_mempool/rte_mempool.h | 8 ++++++--
test/test/test_mempool.c | 4 ++--
4 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/drivers/net/xenvirt/rte_mempool_gntalloc.c b/drivers/net/xenvirt/rte_mempool_gntalloc.c
index 73e82f808..ee0bda459 100644
--- a/drivers/net/xenvirt/rte_mempool_gntalloc.c
+++ b/drivers/net/xenvirt/rte_mempool_gntalloc.c
@@ -114,7 +114,7 @@ _create_mempool(const char *name, unsigned elt_num, unsigned elt_size,
pg_shift = rte_bsf32(pg_sz);
rte_mempool_calc_obj_size(elt_size, flags, &objsz);
- sz = rte_mempool_xmem_size(elt_num, objsz.total_size, pg_shift);
+ sz = rte_mempool_xmem_size(elt_num, objsz.total_size, pg_shift, NULL);
pg_num = sz >> pg_shift;
pa_arr = calloc(pg_num, sizeof(pa_arr[0]));
@@ -162,7 +162,8 @@ _create_mempool(const char *name, unsigned elt_num, unsigned elt_size,
* Check that allocated size is big enough to hold elt_num
* objects and a calcualte how many bytes are actually required.
*/
- usz = rte_mempool_xmem_usage(va, elt_num, objsz.total_size, pa_arr, pg_num, pg_shift);
+ usz = rte_mempool_xmem_usage(va, elt_num, objsz.total_size, pa_arr,
+ pg_num, pg_shift, NULL);
if (usz < 0) {
mp = NULL;
i = pg_num;
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 958654f2f..19e5e6ddf 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -238,7 +238,8 @@ rte_mempool_calc_obj_size(uint32_t elt_size, uint32_t flags,
* Calculate maximum amount of memory required to store given number of objects.
*/
size_t
-rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz, uint32_t pg_shift)
+rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz, uint32_t pg_shift,
+ __rte_unused const struct rte_mempool *mp)
{
size_t obj_per_page, pg_num, pg_sz;
@@ -264,13 +265,14 @@ rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz, uint32_t pg_shift)
ssize_t
rte_mempool_xmem_usage(__rte_unused void *vaddr, uint32_t elt_num,
size_t total_elt_sz, const phys_addr_t paddr[], uint32_t pg_num,
- uint32_t pg_shift)
+ uint32_t pg_shift, __rte_unused const struct rte_mempool *mp)
{
uint32_t elt_cnt = 0;
phys_addr_t start, end;
uint32_t paddr_idx;
size_t pg_sz = (size_t)1 << pg_shift;
+
/* if paddr is NULL, assume contiguous memory */
if (paddr == NULL) {
start = 0;
@@ -556,7 +558,7 @@ rte_mempool_populate_default(struct rte_mempool *mp)
total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
for (mz_id = 0, n = mp->size; n > 0; mz_id++, n -= ret) {
- size = rte_mempool_xmem_size(n, total_elt_sz, pg_shift);
+ size = rte_mempool_xmem_size(n, total_elt_sz, pg_shift, mp);
ret = snprintf(mz_name, sizeof(mz_name),
RTE_MEMPOOL_MZ_FORMAT "_%d", mp->name, mz_id);
@@ -613,7 +615,7 @@ get_anon_size(const struct rte_mempool *mp)
pg_sz = getpagesize();
pg_shift = rte_bsf32(pg_sz);
total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
- size = rte_mempool_xmem_size(mp->size, total_elt_sz, pg_shift);
+ size = rte_mempool_xmem_size(mp->size, total_elt_sz, pg_shift, mp);
return size;
}
diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
index ca5634eaf..a4bfdb56e 100644
--- a/lib/librte_mempool/rte_mempool.h
+++ b/lib/librte_mempool/rte_mempool.h
@@ -1497,11 +1497,13 @@ uint32_t rte_mempool_calc_obj_size(uint32_t elt_size, uint32_t flags,
* by rte_mempool_calc_obj_size().
* @param pg_shift
* LOG2 of the physical pages size. If set to 0, ignore page boundaries.
+ * @param mp
+ * A pointer to the mempool structure.
* @return
* Required memory size aligned at page boundary.
*/
size_t rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz,
- uint32_t pg_shift);
+ uint32_t pg_shift, const struct rte_mempool *mp);
/**
* Get the size of memory required to store mempool elements.
@@ -1524,6 +1526,8 @@ size_t rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz,
* Number of elements in the paddr array.
* @param pg_shift
* LOG2 of the physical pages size.
+ * @param mp
+ * A pointer to the mempool structure.
* @return
* On success, the number of bytes needed to store given number of
* objects, aligned to the given page size. If the provided memory
@@ -1532,7 +1536,7 @@ size_t rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz,
*/
ssize_t rte_mempool_xmem_usage(void *vaddr, uint32_t elt_num,
size_t total_elt_sz, const phys_addr_t paddr[], uint32_t pg_num,
- uint32_t pg_shift);
+ uint32_t pg_shift, const struct rte_mempool *mp);
/**
* Walk list of all memory pools
diff --git a/test/test/test_mempool.c b/test/test/test_mempool.c
index 47dc3ac5f..1eb81081c 100644
--- a/test/test/test_mempool.c
+++ b/test/test/test_mempool.c
@@ -485,10 +485,10 @@ test_mempool_xmem_misc(void)
elt_num = MAX_KEEP;
total_size = rte_mempool_calc_obj_size(MEMPOOL_ELT_SIZE, 0, NULL);
- sz = rte_mempool_xmem_size(elt_num, total_size, MEMPOOL_PG_SHIFT_MAX);
+ sz = rte_mempool_xmem_size(elt_num, total_size, MEMPOOL_PG_SHIFT_MAX, NULL);
usz = rte_mempool_xmem_usage(NULL, elt_num, total_size, 0, 1,
- MEMPOOL_PG_SHIFT_MAX);
+ MEMPOOL_PG_SHIFT_MAX, NULL);
if (sz != (size_t)usz) {
printf("failure @ %s: rte_mempool_xmem_usage(%u, %u) "
--
2.11.0