> -----Original Message-----
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Xiaolong Ye
> Sent: Thursday, March 21, 2019 9:19 AM
> To: dev@dpdk.org
> Cc: Zhang, Qi Z <qi.z.zh...@intel.com>; Karlsson, Magnus
> <magnus.karls...@intel.com>; Topel, Bjorn <bjorn.to...@intel.com>; Ye,
> Xiaolong <xiaolong...@intel.com>
> Subject: [dpdk-dev] [PATCH v3 3/5] lib/mempool: allow page size aligned
> mempool
>
> Allow create a mempool with page size aligned base address.
>
> Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
> Signed-off-by: Xiaolong Ye <xiaolong...@intel.com>
> ---
> lib/librte_mempool/rte_mempool.c | 3 +++
> lib/librte_mempool/rte_mempool.h | 1 +
> 2 files changed, 4 insertions(+)
>
> diff --git a/lib/librte_mempool/rte_mempool.c
> b/lib/librte_mempool/rte_mempool.c
> index 683b216f9..33ab6a2b4 100644
> --- a/lib/librte_mempool/rte_mempool.c
> +++ b/lib/librte_mempool/rte_mempool.c
> @@ -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 = getpagesize();
> +
Might be a bit safer:
pg_sz = getpagesize();
align = RTE_MAX(align, pg_sz);
BTW, why do you need it always default page size aligned?
Is it for 'external' memory allocation or even for eal hugepages too?
Konstantin
> mz = rte_memzone_reserve_aligned(mz_name, mem_size,
> mp->socket_id, flags, align);
>
