On 02/10, Ciara Loftus wrote:
>The previous frame size calculation incorrectly used
>mb_pool->private_data_size and didn't include mb_pool->header_size.
>Instead of performing a manual calculation, use the
>rte_mempool_calc_obj_size API to determine the frame size.
>
>The previous frame headroom calculation also incorrectly used
>mb_pool->private_data_size and didn't include mb_pool->header_size or the
>mbuf priv size. Fix this.
>
>Fixes: d8a210774e1d ("net/af_xdp: support unaligned umem chunks")
>Cc: sta...@dpdk.org
>
>Signed-off-by: Ciara Loftus <ciara.lof...@intel.com>
>---
> drivers/net/af_xdp/rte_eth_af_xdp.c | 13 ++++++++-----
> 1 file changed, 8 insertions(+), 5 deletions(-)
>
>diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c
>b/drivers/net/af_xdp/rte_eth_af_xdp.c
>index 683e2a559..8b189119c 100644
>--- a/drivers/net/af_xdp/rte_eth_af_xdp.c
>+++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
>@@ -34,6 +34,7 @@
> #include <rte_log.h>
> #include <rte_memory.h>
> #include <rte_memzone.h>
>+#include <rte_mempool.h>
> #include <rte_mbuf.h>
> #include <rte_malloc.h>
> #include <rte_ring.h>
>@@ -755,11 +756,13 @@ xsk_umem_info *xdp_umem_configure(struct pmd_internals
>*internals __rte_unused,
> void *base_addr = NULL;
> struct rte_mempool *mb_pool = rxq->mb_pool;
>
>- usr_config.frame_size = rte_pktmbuf_data_room_size(mb_pool) +
>- ETH_AF_XDP_MBUF_OVERHEAD +
>- mb_pool->private_data_size;
>- usr_config.frame_headroom = ETH_AF_XDP_DATA_HEADROOM +
>- mb_pool->private_data_size;
>+ usr_config.frame_size = rte_mempool_calc_obj_size(mb_pool->elt_size,
>+ mb_pool->flags,
>+ NULL);
>+ usr_config.frame_headroom = mb_pool->header_size +
>+ sizeof(struct rte_mbuf) +
>+ rte_pktmbuf_priv_size(mb_pool) +
>+ RTE_PKTMBUF_HEADROOM;
>
> umem = rte_zmalloc_socket("umem", sizeof(*umem), 0, rte_socket_id());
> if (umem == NULL) {
>--
>2.17.1
>
Reviewed-by: Xiaolong Ye <xiaolong...@intel.com>
