[dpdk-dev] [PATCH] net/octeontx2: fix minimum length to SMQ config

[Jerin Jacob]

On Mon, May 11, 2020 at 11:52 AM Sunil Kumar Kori <skori at marvell.com> wrote:
>
> NIX exposes NIX_AF_SMQ(0..511)_CFG to configure minimum length
> of the packet which is being used for zero padding if packet is
> less than configured value.
>
> Setting it to default minimum length i.e. 60 bytes.
>
> Fixes: ec8ddd4fb1be ("net/octeontx2: restructure TM helper functions")
>
> Signed-off-by: Sunil Kumar Kori <skori at marvell.com>

Acked-by: Jerin Jacob <jerinj at marvell.com>
Applied to dpdk-next-net-mrvl/master. Thanks


> ---
>  drivers/net/octeontx2/otx2_tm.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/octeontx2/otx2_tm.c b/drivers/net/octeontx2/otx2_tm.c
> index b57e10f74..8ed059549 100644
> --- a/drivers/net/octeontx2/otx2_tm.c
> +++ b/drivers/net/octeontx2/otx2_tm.c
> @@ -555,10 +555,13 @@ populate_tm_reg(struct otx2_eth_dev *dev,
>         switch (hw_lvl) {
>         case NIX_TXSCH_LVL_SMQ:
>
> -               /* Set xoff which will be cleared later */
> +               /* Set xoff which will be cleared later and minimum length
> +                * which will be used for zero padding if packet length is
> +                * smaller
> +                */
>                 reg[k] = NIX_AF_SMQX_CFG(schq);
> -               regval[k] = BIT_ULL(50);
> -               regval_mask[k] = ~BIT_ULL(50);
> +               regval[k] = BIT_ULL(50) | NIX_MIN_HW_FRS;
> +               regval_mask[k] = ~(BIT_ULL(50) | 0x7f);
>                 k++;
>
>                 /* Parent and schedule conf */
> --
> 2.17.1
>