On Fri, Sep 13, 2019 at 9:01 PM <jer...@marvell.com> wrote:
>
> From: Kommula Shiva Shankar <kshan...@marvell.com>
>
> When computing the head of CQE ring of prefetch, use qmask to point to
> the correct head index on wrap around case.
>
> Fixes: cc4d7693f2d9 ("net/octeontx2: support Rx")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Kommula Shiva Shankar <kshan...@marvell.com>
> Acked-by: Jerin Jacob <jer...@marvell.com>
Applied to dpdk-next-net-mrvl/master. Thanks
> ---
> drivers/net/octeontx2/otx2_rx.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/octeontx2/otx2_rx.c b/drivers/net/octeontx2/otx2_rx.c
> index 701efc858..48565db03 100644
> --- a/drivers/net/octeontx2/otx2_rx.c
> +++ b/drivers/net/octeontx2/otx2_rx.c
> @@ -61,7 +61,8 @@ nix_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
>
> while (packets < nb_pkts) {
> /* Prefetch N desc ahead */
> - rte_prefetch_non_temporal((void *)(desc + (CQE_SZ(head +
> 2))));
> + rte_prefetch_non_temporal((void *)(desc +
> + (CQE_SZ((head + 2) & qmask))));
> cq = (struct nix_cqe_hdr_s *)(desc + CQE_SZ(head));
>
> mbuf = nix_get_mbuf_from_cqe(cq, data_off);
> --
> 2.23.0
>
