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cfg80211: rename offchannel_chain structs to background_chain to avoid confusion with ETSI standard

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ETSI standard defines "Offchannel CAC" as:
"Off-Channel CAC is performed by a number of non-continuous checks
spread over a period in time. This period, which is required to
determine the presence of radar signals, is defined as the Off-Channel
CAC Time..
Minimum Off-Channel CAC Time 6 minutes and Maximum Off-Channel CAC Time
4 hours..".
mac80211 implementation refers to a dedicated hw chain used for continuous
radar monitoring. Rename offchannel_* references to background_* in
order to avoid confusion with ETSI standard.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4204cc1d648d76b44557981713231e030a3bd991.1638190762.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Lorenzo Bianconi 2021-11-29 14:11:24 +01:00 • committed by Johannes Berg
parent 852a07c10d
commit a95bfb876f
11 changed files with 102 additions and 100 deletions
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20
include/net/cfg80211.h
View file

@ -4073,14 +4073,14 @@ struct mgmt_frame_regs {
* those to decrypt (Re)Association Request and encrypt (Re)Association
* Response frame.
*
* @set_radar_offchan: Configure dedicated offchannel chain available for
* @set_radar_background: Configure dedicated offchannel chain available for
* radar/CAC detection on some hw. This chain can't be used to transmit
* or receive frames and it is bounded to a running wdev.
* Offchannel radar/CAC detection allows to avoid the CAC downtime
* Background radar/CAC detection allows to avoid the CAC downtime
* switching to a different channel during CAC detection on the selected
* radar channel.
* The caller is expected to set chandef pointer to NULL in order to
* disable offchannel CAC/radar detection.
* disable background CAC/radar detection.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@ -4413,8 +4413,8 @@ struct cfg80211_ops {
struct cfg80211_color_change_settings *params);
int (*set_fils_aad)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_fils_aad *fils_aad);
int (*set_radar_offchan)(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef);
int (*set_radar_background)(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef);
};
/*
@ -7626,9 +7626,9 @@ cfg80211_radar_event(struct wiphy *wiphy,
}
static inline void
cfg80211_offchan_radar_event(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef,
gfp_t gfp)
cfg80211_background_radar_event(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef,
gfp_t gfp)
{
__cfg80211_radar_event(wiphy, chandef, true, gfp);
}
@ -7663,13 +7663,13 @@ void cfg80211_cac_event(struct net_device *netdev,
enum nl80211_radar_event event, gfp_t gfp);
/**
* cfg80211_offchan_cac_abort - Channel Availability Check offchan abort event
* cfg80211_background_cac_abort - Channel Availability Check offchan abort event
* @wiphy: the wiphy
*
* This function is called by the driver when a Channel Availability Check
* (CAC) is aborted by a offchannel dedicated chain.
*/
void cfg80211_offchan_cac_abort(struct wiphy *wiphy);
void cfg80211_background_cac_abort(struct wiphy *wiphy);
/**
* cfg80211_gtk_rekey_notify - notify userspace about driver rekeying

10
include/net/mac80211.h
View file

@ -3939,14 +3939,14 @@ struct ieee80211_prep_tx_info {
* twt structure.
* @twt_teardown_request: Update the hw with TWT teardown request received
* from the peer.
* @set_radar_offchan: Configure dedicated offchannel chain available for
* @set_radar_background: Configure dedicated offchannel chain available for
* radar/CAC detection on some hw. This chain can't be used to transmit
* or receive frames and it is bounded to a running wdev.
* Offchannel radar/CAC detection allows to avoid the CAC downtime
* Background radar/CAC detection allows to avoid the CAC downtime
* switching to a different channel during CAC detection on the selected
* radar channel.
* The caller is expected to set chandef pointer to NULL in order to
* disable offchannel CAC/radar detection.
* disable background CAC/radar detection.
* @net_fill_forward_path: Called from .ndo_fill_forward_path in order to
* resolve a path for hardware flow offloading
*/
@ -4277,8 +4277,8 @@ struct ieee80211_ops {
struct ieee80211_twt_setup *twt);
void (*twt_teardown_request)(struct ieee80211_hw *hw,
struct ieee80211_sta *sta, u8 flowid);
int (*set_radar_offchan)(struct ieee80211_hw *hw,
struct cfg80211_chan_def *chandef);
int (*set_radar_background)(struct ieee80211_hw *hw,
struct cfg80211_chan_def *chandef);
int (*net_fill_forward_path)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,

14
include/uapi/linux/nl80211.h
View file

@ -2646,10 +2646,10 @@ enum nl80211_commands {
* Mandatory parameter for the transmitting interface to enable MBSSID.
* Optional for the non-transmitting interfaces.
*
* @NL80211_ATTR_RADAR_OFFCHAN: Configure dedicated offchannel chain available for
* radar/CAC detection on some hw. This chain can't be used to transmit
* or receive frames and it is bounded to a running wdev.
* Offchannel radar/CAC detection allows to avoid the CAC downtime
* @NL80211_ATTR_RADAR_BACKGROUND: Configure dedicated offchannel chain
* available for radar/CAC detection on some hw. This chain can't be used
* to transmit or receive frames and it is bounded to a running wdev.
* Background radar/CAC detection allows to avoid the CAC downtime
* switching on a different channel during CAC detection on the selected
* radar channel.
*
@ -3159,7 +3159,7 @@ enum nl80211_attrs {
NL80211_ATTR_MBSSID_CONFIG,
NL80211_ATTR_MBSSID_ELEMS,
NL80211_ATTR_RADAR_OFFCHAN,
NL80211_ATTR_RADAR_BACKGROUND,
/* add attributes here, update the policy in nl80211.c */
@ -6066,7 +6066,7 @@ enum nl80211_feature_flags {
* frames. Userspace has to share FILS AAD details to the driver by using
* @NL80211_CMD_SET_FILS_AAD.
*
* @NL80211_EXT_FEATURE_RADAR_OFFCHAN: Device supports offchannel radar/CAC
* @NL80211_EXT_FEATURE_RADAR_BACKGROUND: Device supports background radar/CAC
* detection.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
@ -6135,7 +6135,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE,
NL80211_EXT_FEATURE_BSS_COLOR,
NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD,
NL80211_EXT_FEATURE_RADAR_OFFCHAN,
NL80211_EXT_FEATURE_RADAR_BACKGROUND,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,