net: dsa: mxl862xx: add ethtool statistics support

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The MxL862xx firmware exposes per-port RMON counters through the
RMON_PORT_GET command, covering standard IEEE 802.3 MAC statistics
(unicast/multicast/broadcast packet and byte counts, collision
counters, pause frames) as well as hardware-specific counters such
as extended VLAN discard and MTU exceed events.

Add the RMON counter firmware API structures and command definitions.
Implement .get_strings, .get_sset_count, and .get_ethtool_stats for
legacy ethtool -S support. Implement .get_eth_mac_stats,
.get_eth_ctrl_stats, and .get_pause_stats for the standardized
IEEE 802.3 statistics interface.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/480be14d5ed51f3db7b1681b298044dbf8e87494.1775951347.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Daniel Golle 2026-04-12 01:01:57 +01:00 • committed by Jakub Kicinski

parent 43a2deae36

commit e6295d1246

3 changed files with 318 additions and 0 deletions

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142

drivers/net/dsa/mxl862xx/mxl862xx-api.h

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3

drivers/net/dsa/mxl862xx/mxl862xx-cmd.h

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173

drivers/net/dsa/mxl862xx/mxl862xx.c

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