kernel/linux.git/net/ethtool/stats.c, branch v6.1.168

ethtool: stats: Use struct_group() to clear all stats at once

2021-11-19T11:53:02+00:00

In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memset(), avoid intentionally writing across neighboring fields. Add struct_group() to mark region of struct stats_reply_data that should be initialized, which can now be done in a single memset() call. Signed-off-by: Kees Cook Signed-off-by: David S. Miller

ethtool: stats: Fix a copy-paste error

2021-05-19T18:57:33+00:00

data->ctrl_stats should be memset with correct size. Fixes: bfad2b979ddc ("ethtool: add interface to read standard MAC Ctrl stats") Signed-off-by: YueHaibing Acked-by: Jakub Kicinski Signed-off-by: David S. Miller

ethtool: stats: clarify the initialization to ETHTOOL_STAT_NOT_SET

2021-04-19T23:23:32+00:00

Ido suggests we add a comment about the init of stats to -1. This is unlikely to be clear to first time readers. Suggested-by: Ido Schimmel Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

ethtool: add interface to read RMON stats

2021-04-16T23:59:20+00:00

Most devices maintain RMON (RFC 2819) stats - particularly the "histogram" of packets received by size. Unlike other RFCs which duplicate IEEE stats, the short/oversized frame counters in RMON don't seem to match IEEE stats 1-to-1 either, so expose those, too. Do not expose basic packet, CRC errors etc - those are already otherwise covered. Because standard defines packet ranges only up to 1518, and everything above that should theoretically be "oversized" - devices often create their own ranges. Going beyond what the RFC defines - expose the "histogram" in the Tx direction (assume for now that the ranges will be the same). Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

ethtool: add interface to read standard MAC Ctrl stats

2021-04-16T23:59:20+00:00

Number of devices maintains the standard-based MAC control counters for control frames. Add a API for those. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

ethtool: add interface to read standard MAC stats

2021-04-16T23:59:20+00:00

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 Signed-off-by: David S. Miller

ethtool: add a new command for reading standard stats

2021-04-16T23:59:20+00:00

Add an interface for reading standard stats, including stats which don't have a corresponding control interface. Start with IEEE 802.3 PHY stats. There seems to be only one stat to expose there. Define API to not require user space changes when new stats or groups are added. Groups are based on bitset, stats have a string set associated. v1: wrap stats in a nest Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller