[dpdk-dev] rte_pktmbuf_pool_create returns EINVAL

[Kamaraj P <pkamaraj@gmail.com>]

Hello All,

We are using DDPDK 19.11 and when we call *rte_pktmbuf_pool_create() *API
allocate memory,
we could see the EINVAL ( EINVAL - cache size provided is too large, or
priv_size is not aligned ) return from that above API.
We are seeing the issue only when we pass the Priv_size value of 64 bytes
which is aligned to RTE_MBUF_PRIV_ALIGN(8 bytes).

Here is our snippet of our code base:
#define MBUF_CACHE_SIZE   *512 *
#define MBUF_PRIV_SIZE        *64*
#define FRAME_LEN             *9216*
#define NO_OF_MBUF
*52736 *

/*define in rte_config.h */
#define RTE_PKTMBUF_HEADROOM 128

pool = rte_pktmbuf_pool_create(name, num_mbufs,
                                   MBUF_CACHE_SIZE, MBUF_PRIV_SIZE,
                                   frame_len + RTE_PKTMBUF_HEADROOM,
                                   rte_socket_id());

The above check was failed with EINVAL

Could you please suggest if there is any known issue or limitation w.r.t
19.11

Thanks,
Kamaraj