671f4d53ac
Major backport of upstream patch for support of multiple feature of the
Airoha Ethernet driver.
Feature backported are TSO, Jumbo packet, Offload and initial Wlan
Offload support.
Link: https://github.com/openwrt/openwrt/pull/19816
(cherry picked from commit 9d3009f426)
[ add missing kconfig flag ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
From 03b1b69f0662c46f258a45e4a7d7837351c11692 Mon Sep 17 00:00:00 2001
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Tue, 4 Mar 2025 15:21:10 +0100
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Subject: [PATCH 3/6] net: airoha: Introduce airoha_dev_change_mtu callback
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Add airoha_dev_change_mtu callback to update the MTU of a running
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device.
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Reviewed-by: Simon Horman <horms@kernel.org>
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Link: https://patch.msgid.link/20250304-airoha-eth-rx-sg-v1-3-283ebc61120e@kernel.org
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/ethernet/airoha/airoha_eth.c | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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--- a/drivers/net/ethernet/airoha/airoha_eth.c
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+++ b/drivers/net/ethernet/airoha/airoha_eth.c
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@@ -1706,6 +1706,20 @@ static void airoha_dev_get_stats64(struc
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} while (u64_stats_fetch_retry(&port->stats.syncp, start));
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}
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+static int airoha_dev_change_mtu(struct net_device *dev, int mtu)
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+{
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+ struct airoha_gdm_port *port = netdev_priv(dev);
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+ struct airoha_eth *eth = port->qdma->eth;
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+ u32 len = ETH_HLEN + mtu + ETH_FCS_LEN;
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+
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+ airoha_fe_rmw(eth, REG_GDM_LEN_CFG(port->id),
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+ GDM_LONG_LEN_MASK,
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+ FIELD_PREP(GDM_LONG_LEN_MASK, len));
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+ WRITE_ONCE(dev->mtu, mtu);
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+
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+ return 0;
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+}
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+
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static u16 airoha_dev_select_queue(struct net_device *dev, struct sk_buff *skb,
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struct net_device *sb_dev)
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{
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@@ -2398,6 +2412,7 @@ static const struct net_device_ops airoh
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.ndo_init = airoha_dev_init,
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.ndo_open = airoha_dev_open,
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.ndo_stop = airoha_dev_stop,
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+ .ndo_change_mtu = airoha_dev_change_mtu,
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.ndo_select_queue = airoha_dev_select_queue,
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.ndo_start_xmit = airoha_dev_xmit,
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.ndo_get_stats64 = airoha_dev_get_stats64,
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