net: dsa: mt7530: support setting MTU

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MT7530/7531 has a global RX packet length register, which can be used
to set MTU.

Supported packet length values are 1522 (1518 if untagged), 1536,
1552, and multiple of 1024 (from 2048 to 15360).

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Link: https://lore.kernel.org/r/20201103050618.11419-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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DENG Qingfang 2020-11-03 13:06:18 +08:00 • committed by Jakub Kicinski

parent 2c24eefb24

commit 9470174e75

2 changed files with 61 additions and 0 deletions

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49

drivers/net/dsa/mt7530.c

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12

drivers/net/dsa/mt7530.h

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