cf85d08fdf
Most of the DSA switches currently in the field do not support the Ethertype DSA tagging format that one of the previous patches added support for, but only the original DSA tagging format. The original DSA tagging format carries the same information as the Ethertype DSA tagging format, but with the difference that it does not have an ethertype field. In other words, when receiving a packet that is tagged with an original DSA tag, there is no way of telling in eth_type_trans() that this packet is in fact a DSA-tagged packet. This patch adds a hook into eth_type_trans() which is only compiled in if support for a switch chip that doesn't support Ethertype DSA is selected, and which checks whether there is a DSA switch driver instance attached to this network device which uses the old tag format. If so, it sets the protocol field to ETH_P_DSA without looking at the packet, so that the packet ends up in the right place. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Tested-by: Nicolas Pitre <nico@marvell.com> Tested-by: Peter van Valderen <linux@ddcrew.com> Tested-by: Dirk Teurlings <dirk@upexia.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
36 lines
636 B
Plaintext
36 lines
636 B
Plaintext
menuconfig NET_DSA
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bool "Distributed Switch Architecture support"
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default n
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depends on EXPERIMENTAL
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---help---
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This allows you to use hardware switch chips that use
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the Distributed Switch Architecture.
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if NET_DSA
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# tagging formats
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config NET_DSA_TAG_DSA
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bool
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default n
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config NET_DSA_TAG_EDSA
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bool
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default n
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# switch drivers
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config NET_DSA_MV88E6XXX
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bool
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default n
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config NET_DSA_MV88E6123_61_65
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bool "Marvell 88E6123/6161/6165 ethernet switch chip support"
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select NET_DSA_MV88E6XXX
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select NET_DSA_TAG_EDSA
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---help---
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This enables support for the Marvell 88E6123/6161/6165
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ethernet switch chips.
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endif
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