If a dedicated (off-channel) radar detection hardware (chain) is available in the hardware/driver, allow this to be used by calling the NL80211_CMD_RADAR_DETECT command with a new flag attribute requesting off-channel radar detection is used. Offchannel CAC (channel availability check) avoids the CAC downtime when switching to a radar channel or when turning on the AP. Drivers advertise support for this using the new feature flag NL80211_EXT_FEATURE_RADAR_OFFCHAN.
Showing the changes to include/uapi (1 of 8 files). Show all
Unified · Split
| @@ -2639,6 +2639,13 @@ enum nl80211_commands { · 2638 unmodified lines | ||
| 2639 | 2639 | * Mandatory parameter for the transmitting interface to enable MBSSID. |
| 2640 | 2640 | * Optional for the non-transmitting interfaces. |
| 2641 | 2641 | * |
| 2642 | + * @NL80211_ATTR_RADAR_OFFCHAN: Configure dedicated offchannel chain available for | |
| 2643 | + * radar/CAC detection on some hw. This chain can't be used to transmit | |
| 2644 | + * or receive frames and it is bounded to a running wdev. | |
| 2645 | + * Offchannel radar/CAC detection allows to avoid the CAC downtime | |
| 2646 | + * switching on a different channel during CAC detection on the selected | |
| 2647 | + * radar channel. | |
| 2648 | + * | |
| 2642 | 2649 | * @NUM_NL80211_ATTR: total number of nl80211_attrs available |
| 2643 | 2650 | * @NL80211_ATTR_MAX: highest attribute number currently defined |
| 2644 | 2651 | * @__NL80211_ATTR_AFTER_LAST: internal use |
| @@ -3145,6 +3152,8 @@ enum nl80211_attrs { · 500 unmodified lines | ||
| 3145 | 3152 | NL80211_ATTR_MBSSID_CONFIG, |
| 3146 | 3153 | NL80211_ATTR_MBSSID_ELEMS, |
| 3147 | 3154 | |
| 3155 | + NL80211_ATTR_RADAR_OFFCHAN, | |
| 3156 | + | |
| 3148 | 3157 | /* add attributes here, update the policy in nl80211.c */ |
| 3149 | 3158 | |
| 3150 | 3159 | __NL80211_ATTR_AFTER_LAST, |
| @@ -6051,6 +6060,9 @@ enum nl80211_feature_flags { · 2900 unmodified lines | ||
| 6051 | 6060 | * frames. Userspace has to share FILS AAD details to the driver by using |
| 6052 | 6061 | * @NL80211_CMD_SET_FILS_AAD. |
| 6053 | 6062 | * |
| 6063 | + * @NL80211_EXT_FEATURE_RADAR_OFFCHAN: Device supports offchannel radar/CAC | |
| 6064 | + * detection. | |
| 6065 | + * | |
| 6054 | 6066 | * @NUM_NL80211_EXT_FEATURES: number of extended features. |
| 6055 | 6067 | * @MAX_NL80211_EXT_FEATURES: highest extended feature index. |
| 6056 | 6068 | */ |
| @@ -6117,6 +6129,7 @@ enum nl80211_ext_feature_index { · 60 unmodified lines | ||
| 6117 | 6129 | NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE, |
| 6118 | 6130 | NL80211_EXT_FEATURE_BSS_COLOR, |
| 6119 | 6131 | NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD, |
| 6132 | + NL80211_EXT_FEATURE_RADAR_OFFCHAN, | |
| 6120 | 6133 | |
| 6121 | 6134 | /* add new features before the definition below */ |
| 6122 | 6135 | NUM_NL80211_EXT_FEATURES, |