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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-01-19 13:26:56 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-01-23 13:44:18 +0100 |
| commit | 04692c9020b76939715d6f2b4ff84d832246e0fc (patch) | |
| tree | d21fa306edcdbe9e7d31d8c9cb4f8e53d84a8e77 /net/ethtool/common.h | |
| parent | docs: ethtool-netlink: document interface for MAC Merge layer (diff) | |
| download | linux-04692c9020b76939715d6f2b4ff84d832246e0fc.tar.xz linux-04692c9020b76939715d6f2b4ff84d832246e0fc.zip | |
net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC)
IEEE 802.3-2018 clause 99 defines a MAC Merge sublayer which contains an
Express MAC and a Preemptible MAC. Both MACs are hidden to higher and
lower layers and visible as a single MAC (packet classification to eMAC
or pMAC on TX is done based on priority; classification on RX is done
based on SFD).
For devices which support a MAC Merge sublayer, it is desirable to
retrieve individual packet counters from the eMAC and the pMAC, as well
as aggregate statistics (their sum).
Introduce a new ETHTOOL_A_STATS_SRC attribute which is part of the
policy of ETHTOOL_MSG_STATS_GET and, and an ETHTOOL_A_PAUSE_STATS_SRC
which is part of the policy of ETHTOOL_MSG_PAUSE_GET (accepted when
ETHTOOL_FLAG_STATS is set in the common ethtool header). Both of these
take values from enum ethtool_mac_stats_src, defaulting to "aggregate"
in the absence of the attribute.
Existing drivers do not need to pay attention to this enum which was
added to all driver-facing structures, just the ones which report the
MAC merge layer as supported.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool/common.h')
| -rw-r--r-- | net/ethtool/common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ethtool/common.h b/net/ethtool/common.h index b1b9db810eca..28b8aaaf9bcb 100644 --- a/net/ethtool/common.h +++ b/net/ethtool/common.h @@ -54,4 +54,6 @@ int ethtool_get_module_info_call(struct net_device *dev, int ethtool_get_module_eeprom_call(struct net_device *dev, struct ethtool_eeprom *ee, u8 *data); +bool __ethtool_dev_mm_supported(struct net_device *dev); + #endif /* _ETHTOOL_COMMON_H */ |