Vladimir Oltean a8015ded89 net: mscc: ocelot: properly account for VLAN header length when setting MRU ... What the driver writes into MAC_MAXLEN_CFG does not actually represent VLAN_ETH_FRAME_LEN but instead ETH_FRAME_LEN + ETH_FCS_LEN. Yes they are numerically equal, but the difference is important, as the switch treats VLAN-tagged traffic specially and knows to increase the maximum accepted frame size automatically. So it is always wrong to account for VLAN in the MAC_MAXLEN_CFG register. Unconditionally increase the maximum allowed frame size for double-tagged traffic. Accounting for the additional length does not mean that the other VLAN membership checks aren't performed, so there's no harm done. Also, stop abusing the MTU name for configuring the MRU. There is no support for configuring the MRU on an interface at the moment. Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support") Fixes: fa914e9c4d ("net: mscc: ocelot: create a helper for changing the port MTU") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2020-03-09 18:58:17 -07:00
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ocelot.h	net: mscc: ocelot: make phy_mode a member of the common struct ocelot_port	2020-01-05 23:22:33 -08:00
ocelot_ana.h	net: mscc: ocelot: export ANA, DEV and QSYS registers to include/soc/mscc	2020-01-05 23:22:33 -08:00
ocelot_dev.h	net: mscc: ocelot: properly account for VLAN header length when setting MRU	2020-03-09 18:58:17 -07:00
ocelot_hsio.h	…
ocelot_qsys.h	net: mscc: ocelot: export ANA, DEV and QSYS registers to include/soc/mscc	2020-01-05 23:22:33 -08:00
ocelot_sys.h	net: mscc: ocelot: publish ocelot_sys.h to include/soc/mscc	2019-11-15 12:32:16 -08:00