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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2022-12-05 06:22:28 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-12-07 11:57:58 +0100 |
| commit | 1d0a1a6d0d63db5bba73abe862180c947861f4d4 (patch) | |
| tree | d17628fe3a21ac8b7d366f52ca456c05f687764d | |
| parent | net: dsa: microchip: move max mtu to one location (diff) | |
| download | linux-1d0a1a6d0d63db5bba73abe862180c947861f4d4.tar.xz linux-1d0a1a6d0d63db5bba73abe862180c947861f4d4.zip | |
net: dsa: microchip: do not store max MTU for all ports
If we have global MTU configuration, it is enough to configure it on CPU
port only.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/dsa/microchip/ksz9477.c | 14 | ||||
| -rw-r--r-- | drivers/net/dsa/microchip/ksz_common.h | 1 |
2 files changed, 5 insertions, 10 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c index 602d00671bef..f6e7968ab105 100644 --- a/drivers/net/dsa/microchip/ksz9477.c +++ b/drivers/net/dsa/microchip/ksz9477.c @@ -45,19 +45,15 @@ static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset, int ksz9477_change_mtu(struct ksz_device *dev, int port, int mtu) { - u16 frame_size, max_frame = 0; - int i; - - frame_size = mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; + u16 frame_size; - /* Cache the per-port MTU setting */ - dev->ports[port].max_frame = frame_size; + if (!dsa_is_cpu_port(dev->ds, port)) + return 0; - for (i = 0; i < dev->info->port_cnt; i++) - max_frame = max(max_frame, dev->ports[i].max_frame); + frame_size = mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; return regmap_update_bits(dev->regmap[1], REG_SW_MTU__2, - REG_SW_MTU_MASK, max_frame); + REG_SW_MTU_MASK, frame_size); } static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev) diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h index 27c26ee15af4..61228be299f9 100644 --- a/drivers/net/dsa/microchip/ksz_common.h +++ b/drivers/net/dsa/microchip/ksz_common.h @@ -95,7 +95,6 @@ struct ksz_port { struct ksz_port_mib mib; phy_interface_t interface; - u16 max_frame; u32 rgmii_tx_val; u32 rgmii_rx_val; struct ksz_device *ksz_dev; |