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SubjectRe: [PATCH 05/14] net: dsa: tag_mtk: assign per-port queues
On Mon, Nov 07, 2022 at 07:54:43PM +0100, Felix Fietkau wrote:
> Keeps traffic sent to the switch within link speed limits
>
> Signed-off-by: Felix Fietkau <nbd@nbd.name>
> ---
> net/dsa/tag_mtk.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c
> index 415d8ece242a..445d6113227f 100644
> --- a/net/dsa/tag_mtk.c
> +++ b/net/dsa/tag_mtk.c
> @@ -25,6 +25,9 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
> u8 xmit_tpid;
> u8 *mtk_tag;
>
> + /* Reserve the first three queues for packets not passed through DSA */
> + skb_set_queue_mapping(skb, 3 + dp->index);
> +

Should DSA have to care about this detail, or could you rework your
mtk_select_queue() procedure to adjust the queue mapping as needed?

> /* Build the special tag after the MAC Source Address. If VLAN header
> * is present, it's required that VLAN header and special tag is
> * being combined. Only in this way we can allow the switch can parse
> --
> 2.38.1
>

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