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From: Qi Zhang <qi.z.zhang@intel.com>
To: dev@dpdk.org
Cc: magnus.karlsson@intel.com, bjorn.topel@intel.com,
Qi Zhang <qi.z.zhang@intel.com>
Date: Thu, 8 Mar 2018 21:52:44 +0800
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Subject: [dpdk-dev] [RFC v2 2/7] lib/mbuf: enable parse flags when create
mempool
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This give the option that applicaiton can configure each
memory chunk's size precisely. (by MEMPOOL_F_NO_SPREAD).
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
lib/librte_mbuf/rte_mbuf.c | 15 ++++++++++++---
lib/librte_mbuf/rte_mbuf.h | 8 +++++++-
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 091d388d3..5fd91c87c 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -125,7 +125,7 @@ rte_pktmbuf_init(struct rte_mempool *mp,
struct rte_mempool * __rte_experimental
rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n,
unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
- int socket_id, const char *ops_name)
+ unsigned int flags, int socket_id, const char *ops_name)
{
struct rte_mempool *mp;
struct rte_pktmbuf_pool_private mbp_priv;
@@ -145,7 +145,7 @@ rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n,
mbp_priv.mbuf_priv_size = priv_size;
mp = rte_mempool_create_empty(name, n, elt_size, cache_size,
- sizeof(struct rte_pktmbuf_pool_private), socket_id, 0);
+ sizeof(struct rte_pktmbuf_pool_private), socket_id, flags);
if (mp == NULL)
return NULL;
@@ -179,9 +179,18 @@ rte_pktmbuf_pool_create(const char *name, unsigned int n,
int socket_id)
{
return rte_pktmbuf_pool_create_by_ops(name, n, cache_size, priv_size,
- data_room_size, socket_id, NULL);
+ data_room_size, 0, socket_id, NULL);
}
+/* helper to create a mbuf pool with NO_SPREAD */
+struct rte_mempool *
+rte_pktmbuf_pool_create_with_flags(const char *name, unsigned int n,
+ unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
+ unsigned int flags, int socket_id)
+{
+ return rte_pktmbuf_pool_create_by_ops(name, n, cache_size, priv_size,
+ data_room_size, flags, socket_id, NULL);
+}
/* do some sanity checks on a mbuf: panic if it fails */
void
rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header)
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 62740254d..6f6af42a8 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1079,6 +1079,12 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
unsigned cache_size, uint16_t priv_size, uint16_t data_room_size,
int socket_id);
+struct rte_mempool *
+rte_pktmbuf_pool_create_with_flags(const char *name, unsigned int n,
+ unsigned cache_size, uint16_t priv_size, uint16_t data_room_size,
+ unsigned flags, int socket_id);
+
+
/**
* Create a mbuf pool with a given mempool ops name
*
@@ -1119,7 +1125,7 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
struct rte_mempool * __rte_experimental
rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n,
unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
- int socket_id, const char *ops_name);
+ unsigned int flags, int socket_id, const char *ops_name);
/**
* Get the data room size of mbufs stored in a pktmbuf_pool
--
2.13.6