net: ethernet: mediatek: support setting MTU

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MT762x HW, except for MT7628, supports frame length up to 2048
(maximum length on GDM), so allow setting MTU up to 2030.

Also set the default frame length to the hardware default 1518.

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210125042046.5599-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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DENG Qingfang 2021-01-25 12:20:46 +08:00 • committed by Jakub Kicinski

parent 8d21c882ab

commit 4fd5979209

2 changed files with 47 additions and 8 deletions

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43

drivers/net/ethernet/mediatek/mtk_eth_soc.c

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12

drivers/net/ethernet/mediatek/mtk_eth_soc.h

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