[dpdk-dev] [PATCH v3 1/2] net/ixgbe: calculate the correct number of received packets in bulk alloc function

[Jianbo Liu]

On 5 February 2017 at 00:37, Jianbo Liu <jianbo.liu at linaro.org> wrote:
> To get better performance, Rx bulk alloc recv function will scan 8 descs
> in one time, but the statuses are not consistent on ARM platform because
> the memory allocated for Rx descriptors is cacheable hugepages.
> This patch is to calculate the number of received packets by scan DD bit
> sequentially, and stops when meeting the first packet with DD bit unset.
>
> Signed-off-by: Jianbo Liu <jianbo.liu at linaro.org>
> ---
>  drivers/net/ixgbe/ixgbe_rxtx.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
> index 36f1c02..613890e 100644
> --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> +++ b/drivers/net/ixgbe/ixgbe_rxtx.c

There is no change for this patch from v2 to v3.
But the other in this patchset, reading desc statuses is changed to be
in order, not backward.