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net: dsa: tag_yt921x: add priority support

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Required by DCB/QoS support of the switch driver, since the rx packets
will have non-zero priorities.

Signed-off-by: David Yang <mmyangfl@gmail.com>
Link: https://patch.msgid.link/20260131021854.3405036-3-mmyangfl@gmail.com
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
David Yang 2026-01-31 10:18:48 +08:00 • committed by Paolo Abeni
parent a63daf73a5
commit 8cdb2cc9a1
1 changed files with 5 additions and 1 deletions
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6
net/dsa/tag_yt921x.c
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@ -69,7 +69,9 @@ yt921x_tag_xmit(struct sk_buff *skb, struct net_device *netdev)
tag[0] = htons(ETH_P_YT921X);
/* VLAN tag unrelated when TX */
tag[1] = 0;
tag[2] = 0;
ctrl = YT921X_TAG_CODE(YT921X_TAG_CODE_FORWARD) | YT921X_TAG_CODE_EN |
YT921X_TAG_PRIO(skb->priority);
tag[2] = htons(ctrl);
ctrl = YT921X_TAG_TX_PORTS(dsa_xmit_port_mask(skb, netdev)) |
YT921X_TAG_PORT_EN;
tag[3] = htons(ctrl);
@ -112,6 +114,8 @@ yt921x_tag_rcv(struct sk_buff *skb, struct net_device *netdev)
return NULL;
}
skb->priority = FIELD_GET(YT921X_TAG_PRIO_M, rx);
if (!(rx & YT921X_TAG_CODE_EN)) {
dev_warn_ratelimited(&netdev->dev,
"Tag code not enabled in rx packet\n");