From: "Artem V. Andreev" <artem.andr...@oktetlabs.ru>
Callback to calculate required memory area size may require mempool
driver data to be already allocated and initialized.
Signed-off-by: Artem V. Andreev <artem.andr...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybche...@solarflare.com>
---
v2 -> v3:
- none
v1 -> v2:
- add init check to mempool_ops_alloc_once()
- move ealier in the patch series since it is required when driver
ops are called and it is better to have it before new ops are added
RFCv2 -> v1:
- rename helper function as mempool_ops_alloc_once()
lib/librte_mempool/rte_mempool.c | 33 ++++++++++++++++++++++++++-------
1 file changed, 26 insertions(+), 7 deletions(-)
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 6ffa795..d8e3720 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -323,6 +323,21 @@ rte_mempool_free_memchunks(struct rte_mempool *mp)
}
}
+static int
+mempool_ops_alloc_once(struct rte_mempool *mp)
+{
+ int ret;
+
+ /* create the internal ring if not already done */
+ if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) {
+ ret = rte_mempool_ops_alloc(mp);
+ if (ret != 0)
+ return ret;
+ mp->flags |= MEMPOOL_F_POOL_CREATED;
+ }
+ return 0;
+}
+
/* Add objects in the pool, using a physically contiguous memory
* zone. Return the number of objects added, or a negative value
* on error.
@@ -339,13 +354,9 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char
*vaddr,
struct rte_mempool_memhdr *memhdr;
int ret;
- /* create the internal ring if not already done */
- if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) {
- ret = rte_mempool_ops_alloc(mp);
- if (ret != 0)
- return ret;
- mp->flags |= MEMPOOL_F_POOL_CREATED;
- }
+ ret = mempool_ops_alloc_once(mp);
+ if (ret != 0)
+ return ret;
/* Notify memory area to mempool */
ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len);
@@ -556,6 +567,10 @@ rte_mempool_populate_default(struct rte_mempool *mp)
unsigned int mp_flags;
int ret;
+ ret = mempool_ops_alloc_once(mp);
+ if (ret != 0)
+ return ret;
+
/* mempool must not be populated */
if (mp->nb_mem_chunks != 0)
return -EEXIST;
@@ -667,6 +682,10 @@ rte_mempool_populate_anon(struct rte_mempool *mp)
return 0;
}
+ ret = mempool_ops_alloc_once(mp);
+ if (ret != 0)
+ return ret;
+
/* get chunk of virtually continuous memory */
size = get_anon_size(mp);
addr = mmap(NULL, size, PROT_READ | PROT_WRITE,
--
2.7.4
