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realtek: rtl93xx: Send per port packets on physical port

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If link aggregation with LACP is activated, we must send out the LACP
packets on the physical port and not on a logic port. Otherwise, the per
port packets might be (rebalanced) between the different ports in a link
aggregation group.

Such rebalancing breaks 802.3ad and will leave ports in a churned state.

Fixes: 8c42e63a69 ("realtek: rtl93xx: fix incorrect destination port selection")
Signed-off-by: Sven Eckelmann <se@simonwunderlich.de>
Link: https://github.com/openwrt/openwrt/pull/20728
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Sven Eckelmann 2025-11-08 08:29:27 +01:00 • committed by Robert Marko
parent 993a44b24c
commit d78a2a6597
1 changed files with 2 additions and 2 deletions
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4
target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
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@ -133,7 +133,7 @@ static void rtl930x_create_tx_header(struct p_hdr *h, unsigned int dest_port, in
h->cpu_tag[0] = 0x8000; /* CPU tag marker */
h->cpu_tag[1] = FIELD_PREP(RTL93XX_CPU_TAG1_FWD_MASK,
RTL93XX_CPU_TAG1_FWD_LOGICAL);
RTL93XX_CPU_TAG1_FWD_PHYSICAL);
h->cpu_tag[1] |= FIELD_PREP(RTL93XX_CPU_TAG1_IGNORE_STP_MASK, 1);
h->cpu_tag[2] = 0;
h->cpu_tag[3] = 0;
@ -152,7 +152,7 @@ static void rtl931x_create_tx_header(struct p_hdr *h, unsigned int dest_port, in
h->cpu_tag[0] = 0x8000; /* CPU tag marker */
h->cpu_tag[1] = FIELD_PREP(RTL93XX_CPU_TAG1_FWD_MASK,
RTL93XX_CPU_TAG1_FWD_LOGICAL);
RTL93XX_CPU_TAG1_FWD_PHYSICAL);
h->cpu_tag[1] |= FIELD_PREP(RTL93XX_CPU_TAG1_IGNORE_STP_MASK, 1);
h->cpu_tag[2] = 0;
h->cpu_tag[3] = 0;