6.18-stable review patch. If anyone has any objections, please let me know.
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From: Jonas Gorski jonas.gorski@gmail.com
[ Upstream commit 85132103f700b1340fc17df8a981509d17bf4872 ]
On BCM5325 and BCM5365, unicast ARL entries use 8 as the value for the CPU port, so we need to translate it to/from 5 as used for the CPU port at most other places.
Fixes: c45655386e53 ("net: dsa: b53: add support for FDB operations on 5325/5365") Signed-off-by: Jonas Gorski jonas.gorski@gmail.com Reviewed-by: Florian Fainelli florian.fainelli@broadcom.com Link: https://patch.msgid.link/20251128080625.27181-5-jonas.gorski@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/b53/b53_priv.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h index 127ce7f6b16ba..80e7dd6169b47 100644 --- a/drivers/net/dsa/b53/b53_priv.h +++ b/drivers/net/dsa/b53/b53_priv.h @@ -344,12 +344,14 @@ static inline void b53_arl_to_entry_25(struct b53_arl_entry *ent, u64 mac_vid) { memset(ent, 0, sizeof(*ent)); - ent->port = (mac_vid >> ARLTBL_DATA_PORT_ID_S_25) & - ARLTBL_DATA_PORT_ID_MASK_25; ent->is_valid = !!(mac_vid & ARLTBL_VALID_25); ent->is_age = !!(mac_vid & ARLTBL_AGE_25); ent->is_static = !!(mac_vid & ARLTBL_STATIC_25); u64_to_ether_addr(mac_vid, ent->mac); + ent->port = (mac_vid >> ARLTBL_DATA_PORT_ID_S_25) & + ARLTBL_DATA_PORT_ID_MASK_25; + if (is_unicast_ether_addr(ent->mac) && ent->port == B53_CPU_PORT) + ent->port = B53_CPU_PORT_25; ent->vid = (mac_vid >> ARLTBL_VID_S_65) & ARLTBL_VID_MASK_25; }
@@ -383,8 +385,11 @@ static inline void b53_arl_from_entry_25(u64 *mac_vid, const struct b53_arl_entry *ent) { *mac_vid = ether_addr_to_u64(ent->mac); - *mac_vid |= (u64)(ent->port & ARLTBL_DATA_PORT_ID_MASK_25) << - ARLTBL_DATA_PORT_ID_S_25; + if (is_unicast_ether_addr(ent->mac) && ent->port == B53_CPU_PORT_25) + *mac_vid |= (u64)B53_CPU_PORT << ARLTBL_DATA_PORT_ID_S_25; + else + *mac_vid |= (u64)(ent->port & ARLTBL_DATA_PORT_ID_MASK_25) << + ARLTBL_DATA_PORT_ID_S_25; *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK_25) << ARLTBL_VID_S_65; if (ent->is_valid)