Add support for drivers to report the total number of MPDUs received and the number of MPDUs received with an FCS error from a specific peer. These counters will be incremented only when the TA of the frame matches the MAC address of the peer irrespective of FCS error. It should be noted that the TA field in the frame might be corrupted when there is an FCS error and TA matching logic would fail in such cases. Hence, FCS error counter might not be fully accurate, but it can provide help in detecting bad RX links in significant number of cases. This FCS error counter without full accuracy can be used, e.g., to trigger a kick-out of a connected client with a bad link in AP mode to force such a client to roam to another AP.
Showing the changes to include/uapi/linux (1 of 3 files). Show all
Unified · Split
| @@ -3068,6 +3068,12 @@ enum nl80211_sta_bss_param { · 3067 unmodified lines | |||
| 3068 | * @NL80211_STA_INFO_PAD: attribute used for padding for 64-bit alignment | 3068 | * @NL80211_STA_INFO_PAD: attribute used for padding for 64-bit alignment |
| 3069 | * @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm) | 3069 | * @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm) |
| 3070 | * @NL80211_STA_INFO_ACK_SIGNAL_AVG: avg signal strength of ACK frames (s8, dBm) | 3070 | * @NL80211_STA_INFO_ACK_SIGNAL_AVG: avg signal strength of ACK frames (s8, dBm) |
| 3071 | * @NL80211_STA_INFO_RX_MPDUS: total number of received packets (MPDUs) | ||
| 3072 | * (u32, from this station) | ||
| 3073 | * @NL80211_STA_INFO_FCS_ERROR_COUNT: total number of packets (MPDUs) received | ||
| 3074 | * with an FCS error (u32, from this station). This count may not include | ||
| 3075 | * some packets with an FCS error due to TA corruption. Hence this counter | ||
| 3076 | * might not be fully accurate. | ||
| 3071 | * @__NL80211_STA_INFO_AFTER_LAST: internal | 3077 | * @__NL80211_STA_INFO_AFTER_LAST: internal |
| 3072 | * @NL80211_STA_INFO_MAX: highest possible station info attribute | 3078 | * @NL80211_STA_INFO_MAX: highest possible station info attribute |
| 3073 | */ | 3079 | */ |
| @@ -3108,6 +3114,8 @@ enum nl80211_sta_info { · 34 unmodified lines | |||
| 3108 | NL80211_STA_INFO_PAD, | 3114 | NL80211_STA_INFO_PAD, |
| 3109 | NL80211_STA_INFO_ACK_SIGNAL, | 3115 | NL80211_STA_INFO_ACK_SIGNAL, |
| 3110 | NL80211_STA_INFO_ACK_SIGNAL_AVG, | 3116 | NL80211_STA_INFO_ACK_SIGNAL_AVG, |
| 3117 | NL80211_STA_INFO_RX_MPDUS, | ||
| 3118 | NL80211_STA_INFO_FCS_ERROR_COUNT, | ||
| 3111 | 3119 | ||
| 3112 | /* keep last */ | 3120 | /* keep last */ |
| 3113 | __NL80211_STA_INFO_AFTER_LAST, | 3121 | __NL80211_STA_INFO_AFTER_LAST, |