[PATCH net 2/2] net: ethernet: ti: cpsw_ale: Update multicast entry handling in ALE Table
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STALE251d
From: Chintan Vankar <hidden>
Date: 2026-02-05 07:10:20
Also in:
linux-omap, lkml
Subsystem:
networking drivers, the rest, ti ethernet switch driver (cpsw) · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The current implementation of multicast entry flushing marks all multicast entries as free whenever any interface adds, deletes, or modifies multicast entry. It then re-adds the entries, which disrupts existing multicast connection for other interfaces associated with that entry. Update multicast flushing API to handle above case by clearing out a bit in port_mask for that specific interface. Signed-off-by: Chintan Vankar <redacted> --- drivers/net/ethernet/ti/cpsw_ale.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index fbe35af615a6..9632ad3741de 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c@@ -455,14 +455,13 @@ static void cpsw_ale_flush_mcast(struct cpsw_ale *ale, u32 *ale_entry, ale->port_mask_bits); if ((mask & port_mask) == 0) return; /* ports dont intersect, not interested */ - mask &= ~port_mask; + mask &= (~port_mask | ALE_PORT_HOST); - /* free if only remaining port is host port */ - if (mask) + if (mask == 0x0 || mask == ALE_PORT_HOST) + cpsw_ale_set_entry_type(ale_entry, ALE_TYPE_FREE); + else cpsw_ale_set_port_mask(ale_entry, mask, ale->port_mask_bits); - else - cpsw_ale_set_entry_type(ale_entry, ALE_TYPE_FREE); } int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid)
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2.34.1