[v4,3/5] lib/mempool: allow page size aligned mempool
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Commit Message
Allow create a mempool with page size aligned base address.
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
---
lib/librte_mempool/rte_mempool.c | 3 +++
lib/librte_mempool/rte_mempool.h | 1 +
2 files changed, 4 insertions(+)
@@ -543,6 +543,9 @@ rte_mempool_populate_default(struct rte_mempool *mp)
if (try_contig)
flags |= RTE_MEMZONE_IOVA_CONTIG;
+ if (mp->flags & MEMPOOL_F_PAGE_ALIGN)
+ align = RTE_MAX(align, (size_t)getpagesize());
+
mz = rte_memzone_reserve_aligned(mz_name, mem_size,
mp->socket_id, flags, align);
@@ -264,6 +264,7 @@ struct rte_mempool {
#define MEMPOOL_F_POOL_CREATED 0x0010 /**< Internal: pool is created. */
#define MEMPOOL_F_NO_IOVA_CONTIG 0x0020 /**< Don't need IOVA contiguous objs. */
#define MEMPOOL_F_NO_PHYS_CONTIG MEMPOOL_F_NO_IOVA_CONTIG /* deprecated */
+#define MEMPOOL_F_PAGE_ALIGN 0x0040 /**< Chunk's base address is page aligned */
/**
* @internal When debug is enabled, store some statistics.