[PATCH net-next v6 5/6] net: dsa: microchip: enable MTU normalization for KSZ8795 and KSZ9477 compatible switches
STALE1409d
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2022-11-24 10:15:34
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Subsystem:
microchip ksz series ethernet switch driver, networking drivers, networking [dsa], the rest · Maintainers:
Woojung Huh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrew Lunn, Vladimir Oltean, Linus Torvalds
Revision v6 of 3 in this series.
Revisions (3)
- v5 [diff vs current]
- v6 current
- v7 [diff vs current]
KSZ8795 and KSZ9477 compatible series of switches use global max frame size configuration register. So, enable MTU normalization for this reason. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> --- drivers/net/dsa/microchip/ksz8795.c | 2 ++ drivers/net/dsa/microchip/ksz9477.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index d01bfd609130..060e41b9b6ef 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c@@ -1357,6 +1357,8 @@ int ksz8_setup(struct dsa_switch *ds) struct ksz_device *dev = ds->priv; int i; + ds->mtu_enforcement_ingress = true; + ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_FLOW_CTRL, true); /* Enable automatic fast aging when link changed detected. */
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index f6e7968ab105..47b54ecf2c6f 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c@@ -1134,6 +1134,8 @@ int ksz9477_setup(struct dsa_switch *ds) struct ksz_device *dev = ds->priv; int ret = 0; + ds->mtu_enforcement_ingress = true; + /* Required for port partitioning. */ ksz9477_cfg32(dev, REG_SW_QM_CTRL__4, UNICAST_VLAN_BOUNDARY, true);
--
2.30.2