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From: Xiaolong Ye <xiaolong.ye@intel.com>
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Cc: Qi Zhang <qi.z.zhang@intel.com>,
Karlsson Magnus <magnus.karlsson@intel.com>,
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Subject: [dpdk-dev] [PATCH v4 3/5] lib/mempool: allow page size aligned
mempool
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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(+)
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 683b216f9..171ba1057 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 = RTE_MAX(align, (size_t)getpagesize());
+
mz = rte_memzone_reserve_aligned(mz_name, mem_size,
mp->socket_id, flags, align);
diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
index 7c9cd9a2f..75553b36f 100644
--- a/lib/librte_mempool/rte_mempool.h
+++ b/lib/librte_mempool/rte_mempool.h
@@ -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.
--
2.17.1
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From: Xiaolong Ye <xiaolong.ye@intel.com>
To: dev@dpdk.org
Cc: Qi Zhang <qi.z.zhang@intel.com>,
Karlsson Magnus <magnus.karlsson@intel.com>,
Topel Bjorn <bjorn.topel@intel.com>, Xiaolong Ye <xiaolong.ye@intel.com>
Date: Fri, 22 Mar 2019 21:01:27 +0800
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Subject: [dpdk-dev] [PATCH v4 3/5] lib/mempool: allow page size aligned
mempool
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Message-ID: <20190322130127.gmgKB4o0yxzkCneIF8-kLHefZMSdNG1h6bCEgmfxyZo@z>
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(+)
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 683b216f9..171ba1057 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 = RTE_MAX(align, (size_t)getpagesize());
+
mz = rte_memzone_reserve_aligned(mz_name, mem_size,
mp->socket_id, flags, align);
diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
index 7c9cd9a2f..75553b36f 100644
--- a/lib/librte_mempool/rte_mempool.h
+++ b/lib/librte_mempool/rte_mempool.h
@@ -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.
--
2.17.1