kernel/linux.git/net/mac80211/ethtool.c, branch v6.18.22

wifi: mac80211: add tx_handlers_drop statistics to ethtool

2025-09-10T13:04:27+00:00

Currently tx_handlers_drop statistics are handled only for slow TX path and only at radio level. This also requires CONFIG_MAC80211_DEBUG_COUNTERS to be enabled to account the dropped packets. There is no way to check these stats for fast TX, at interface level and monitor without enabling the debug configuration. Hence, add a new counter at the sdata level to track packets dropped with reason as TX_DROP during transmission for fast path, slow path and other tx management packets. Expose this via ethtool statistics, to improve visibility into transmission failures at interface level and aid debugging and performance monitoring. Place the counter in ethtool with other available tx_* stats for better readability and accurate tracking. Sample output: root@buildroot:~# ethtool -S wlan0 NIC statistics: rx_packets: 5904 rx_bytes: 508122 rx_duplicates: 12 rx_fragments: 5900 rx_dropped: 12 tx_packets: 391487 tx_bytes: 600423383 tx_filtered: 0 tx_retry_failed: 10332 tx_retries: 1548 tx_handlers_drop: 4 .... Co-developed-by: Hari Chandrakanthan Signed-off-by: Hari Chandrakanthan Signed-off-by: Sarika Sharma Link: https://patch.msgid.link/20250822052110.513804-1-quic_sarishar@quicinc.com Signed-off-by: Johannes Berg

wifi: mac80211: Add counter for all monitor interfaces

2025-02-26T14:44:15+00:00

Count open monitor interfaces regardless of the monitor interface type. The new counter virt_monitors takes over counting interfaces depending on the virtual monitor interface while monitors is used for all active monitor interfaces. This fixes monitor packet mirroring when using MONITOR_FLAG_ACTIVE or NO_VIRTUAL_MONITOR interfaces. Fixes: 286e69677065 ("wifi: mac80211: Drop cooked monitor support") Reported-by: Karthikeyan Periyasamy Closes: https://lore.kernel.org/r/cc715114-4e3b-619a-49dc-a4878075e1dc@quicinc.com Signed-off-by: Alexander Wetzel Tested-by: Karthikeyan Periyasamy Link: https://patch.msgid.link/20250220094139.61459-1-Alexander@wetzel-home.de Signed-off-by: Johannes Berg

wifi: mac80211: ethtool: add monitor channel reporting

2024-12-04T15:39:06+00:00

When running ethtool on a monitor interface, the channel wasn't reporting properly. This adds logic to properly report the channel for monitor interfaces in ethtool. Signed-off-by: Dylan Eskew Link: https://patch.msgid.link/20241113144608.334060-1-dylan.eskew@candelatech.com Signed-off-by: Johannes Berg

wifi: mac80211: use wiphy guard

2024-12-04T15:10:52+00:00

The wiphy guard simplifies some code here, so use it. Reviewed-by: Jeff Johnson Signed-off-by: Johannes Berg Link: https://patch.msgid.link/20241122094225.cea65b2d2fd4.Icc168c4bbeddec98ea096aee9077211a7b88b69e@changeid Signed-off-by: Johannes Berg

wifi: mac80211: ethtool: always hold wiphy mutex

2023-09-25T07:00:39+00:00

Drivers should really be able to rely on the wiphy mutex being held all the time, unless otherwise documented. For ethtool, that wasn't quite right. Fix and clarify this in both code and documentation. Reported-by: syzbot+c12a771b218dcbba32e1@syzkaller.appspotmail.com Fixes: 0e8185ce1dde ("wifi: mac80211: check wiphy mutex in ops") Signed-off-by: Johannes Berg

wifi: mac80211: remove sta_mtx

2023-09-11T09:27:22+00:00

We now hold the wiphy mutex everywhere that we use or needed the sta_mtx, so we don't need this mutex any more. Remove it. Most of this change was done automatically with spatch. Signed-off-by: Johannes Berg

wifi: mac80211: ethtool: hold wiphy mutex

2023-09-11T09:27:21+00:00

We should hold the wiphy mutex here since we're going to call the driver and want to remove the sta_mtx. Signed-off-by: Johannes Berg

wifi: mac80211: read ethtool's sta_stats from sinfo

2022-08-26T07:56:54+00:00

Driver may update sinfo directly through .sta_statistics, so this patch makes sure that ethool gets the correct statistics. Signed-off-by: Ryder Lee Link: https://lore.kernel.org/r/f9edff14dd7f5205acf1c21bae8e9d8f9802dd88.1661466499.git.ryder.lee@mediatek.com Signed-off-by: Johannes Berg

wifi: mac80211: ethtool: use deflink for now

2022-06-20T10:57:08+00:00

Hardcoding link[0] is more confusing than using deflink, so use deflink for now, which requires making the macro a bit safer. Signed-off-by: Johannes Berg

wifi: mac80211: reorg some iface data structs for MLD

2022-06-20T10:55:06+00:00

Start reorganizing interface related data structures toward MLD. The most complex part here is for the keys, since we have to split the various kinds of GTKs off to the link but still need to use (for WEP) the other keys as a fallback even for multicast frames. Signed-off-by: Johannes Berg