Introduce a new helper for pktmbuf pool, which will allow
the application to optionally specify the mempool ops name
as well.
Signed-off-by: Hemant Agrawal <hemant.agra...@nxp.com>
---
lib/librte_mbuf/rte_mbuf.c | 23 ++++++++++++++------
lib/librte_mbuf/rte_mbuf.h | 42 ++++++++++++++++++++++++++++++++++++
lib/librte_mbuf/rte_mbuf_version.map | 1 +
3 files changed, 60 insertions(+), 6 deletions(-)
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index fd3b6f5..482676c 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -186,15 +186,15 @@ rte_mbuf_best_mempool_ops(void)
return RTE_MBUF_DEFAULT_MEMPOOL_OPS;
}
-/* helper to create a mbuf pool */
+/* helper to create a mbuf pool with given mempool ops*/
struct rte_mempool *
-rte_pktmbuf_pool_create(const char *name, unsigned n,
- unsigned cache_size, uint16_t priv_size, uint16_t data_room_size,
- int socket_id)
+rte_pktmbuf_pool_create_specific(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)
{
struct rte_mempool *mp;
struct rte_pktmbuf_pool_private mbp_priv;
- const char *mp_ops_name;
+ const char *mp_ops_name = ops_name;
unsigned elt_size;
int ret;
@@ -214,7 +214,8 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
if (mp == NULL)
return NULL;
- mp_ops_name = rte_mbuf_best_mempool_ops();
+ if (mp_ops_name == NULL)
+ mp_ops_name = rte_mbuf_best_mempool_ops();
ret = rte_mempool_set_ops_byname(mp, mp_ops_name, NULL);
if (ret != 0) {
RTE_LOG(ERR, MBUF, "error setting mempool handler\n");
@@ -236,6 +237,16 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
return mp;
}
+/* helper to create a mbuf pool */
+struct rte_mempool *
+rte_pktmbuf_pool_create(const char *name, unsigned int n,
+ unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
+ int socket_id)
+{
+ return rte_pktmbuf_pool_create_specific(name, n, cache_size, priv_size,
+ data_room_size, 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 d26e8cd..f958e3c 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1081,6 +1081,48 @@ rte_pktmbuf_pool_create(const char *name, unsigned n,
int socket_id);
/**
+ * Create a mbuf pool with specific mempool ops
+ *
+ * This function creates and initializes a packet mbuf pool. It is
+ * a wrapper to rte_mempool functions.
+ *
+ * @param name
+ * The name of the mbuf pool.
+ * @param n
+ * The number of elements in the mbuf pool. The optimum size (in terms
+ * of memory usage) for a mempool is when n is a power of two minus one:
+ * n = (2^q - 1).
+ * @param cache_size
+ * Size of the per-core object cache. See rte_mempool_create() for
+ * details.
+ * @param priv_size
+ * Size of application private are between the rte_mbuf structure
+ * and the data buffer. This value must be aligned to RTE_MBUF_PRIV_ALIGN.
+ * @param data_room_size
+ * Size of data buffer in each mbuf, including RTE_PKTMBUF_HEADROOM.
+ * @param socket_id
+ * The socket identifier where the memory should be allocated. The
+ * value can be *SOCKET_ID_ANY* if there is no NUMA constraint for the
+ * reserved zone.
+ * @param ops_name
+ * The mempool ops name to be used for this mempool instead of
+ * default mempool. The value can be *NULL* to use default mempool.
+ * @return
+ * The pointer to the new allocated mempool, on success. NULL on error
+ * with rte_errno set appropriately. Possible rte_errno values include:
+ * - E_RTE_NO_CONFIG - function could not get pointer to rte_config
structure
+ * - E_RTE_SECONDARY - function was called from a secondary process instance
+ * - EINVAL - cache size provided is too large, or priv_size is not aligned.
+ * - ENOSPC - the maximum number of memzones has already been allocated
+ * - EEXIST - a memzone with the same name already exists
+ * - ENOMEM - no appropriate memory area found in which to create memzone
+ */
+struct rte_mempool *
+rte_pktmbuf_pool_create_specific(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);
+
+/**
* Register the platform supported pktmbuf HW pool
*
* @param pool ops name
diff --git a/lib/librte_mbuf/rte_mbuf_version.map
b/lib/librte_mbuf/rte_mbuf_version.map
index b8e258f..9b53502 100644
--- a/lib/librte_mbuf/rte_mbuf_version.map
+++ b/lib/librte_mbuf/rte_mbuf_version.map
@@ -41,5 +41,6 @@ DPDK_18.02 {
rte_mbuf_platform_mempool_ops;
rte_mbuf_register_platform_mempool_ops;
+ rte_pktmbuf_pool_create_specific;
} DPDK_16.11;
--
2.7.4
