net: ethernet: ti: am65-cpsw-nuss/cpsw-ale: Fix multicast entry handling in ALE table

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[ Upstream commit be11a53722 ]

In the current implementation, flushing multicast entries in MAC mode
incorrectly deletes entries for all ports instead of only the target port,
disrupting multicast traffic on other ports. The cause is adding multicast
entries by setting only host port bit, and not setting the MAC port bits.

Fix this by setting the MAC port's bit in the port mask while adding the
multicast entry. Also fix the flush logic to preserve the host port bit
during removal of MAC port and free ALE entries when mask contains only
host port.

Fixes: 5c50a856d5 ("drivers: net: ethernet: cpsw: add multicast address to ALE table")
Signed-off-by: Chintan Vankar <c-vankar@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260224181359.2055322-1-c-vankar@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Chintan Vankar 2026-02-24 23:43:59 +05:30 • committed by Sasha Levin

parent f17c1c4acb

commit 79cc5a4c31

2 changed files with 5 additions and 6 deletions

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2

drivers/net/ethernet/ti/am65-cpsw-nuss.c

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9

drivers/net/ethernet/ti/cpsw_ale.c

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