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ethtool: add interface to read standard MAC stats

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Most of the MAC statistics are included in
struct rtnl_link_stats64, but some fields
are aggregated. Besides it's good to expose
these clearly hardware stats separately.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2021-04-16 12:27:40 -07:00
committed by David S. Miller
parent f09ea6fb12
commit ca2244547e
6 changed files with 182 additions and 0 deletions
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31
include/linux/ethtool.h
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@@ -250,6 +250,34 @@ static inline void ethtool_stats_init(u64 *stats, unsigned int n)
stats[n] = ETHTOOL_STAT_NOT_SET;
}
/* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
* via a more targeted API.
*/
struct ethtool_eth_mac_stats {
u64 FramesTransmittedOK;
u64 SingleCollisionFrames;
u64 MultipleCollisionFrames;
u64 FramesReceivedOK;
u64 FrameCheckSequenceErrors;
u64 AlignmentErrors;
u64 OctetsTransmittedOK;
u64 FramesWithDeferredXmissions;
u64 LateCollisions;
u64 FramesAbortedDueToXSColls;
u64 FramesLostDueToIntMACXmitError;
u64 CarrierSenseErrors;
u64 OctetsReceivedOK;
u64 FramesLostDueToIntMACRcvError;
u64 MulticastFramesXmittedOK;
u64 BroadcastFramesXmittedOK;
u64 FramesWithExcessiveDeferral;
u64 MulticastFramesReceivedOK;
u64 BroadcastFramesReceivedOK;
u64 InRangeLengthErrors;
u64 OutOfRangeLengthField;
u64 FrameTooLongErrors;
};
/* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
* via a more targeted API.
*/
@@ -495,6 +523,7 @@ struct ethtool_module_eeprom {
* specified page. Returns a negative error code or the amount of bytes
* read.
* @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
* @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
*
* All operations are optional (i.e. the function pointer may be set
* to %NULL) and callers must take this into account. Callers must
@@ -607,6 +636,8 @@ struct ethtool_ops {
struct netlink_ext_ack *extack);
void (*get_eth_phy_stats)(struct net_device *dev,
struct ethtool_eth_phy_stats *phy_stats);
void (*get_eth_mac_stats)(struct net_device *dev,
struct ethtool_eth_mac_stats *mac_stats);
};
int ethtool_check_ops(const struct ethtool_ops *ops);