From a95bfb876fa87e2d0fa718ee61a8030ddf162d2b Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Mon, 29 Nov 2021 14:11:24 +0100 Subject: cfg80211: rename offchannel_chain structs to background_chain to avoid confusion with ETSI standard 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 Link: https://lore.kernel.org/r/4204cc1d648d76b44557981713231e030a3bd991.1638190762.git.lorenzo@kernel.org Signed-off-by: Johannes Berg --- net/wireless/mlme.c | 89 +++++++++++++++++++++++++++-------------------------- 1 file changed, 45 insertions(+), 44 deletions(-) (limited to 'net/wireless/mlme.c') diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index e970076e1098..c8155a483ec2 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -920,7 +920,7 @@ void __cfg80211_radar_event(struct wiphy *wiphy, cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE); if (offchan) - queue_work(cfg80211_wq, &rdev->offchan_cac_abort_wk); + queue_work(cfg80211_wq, &rdev->background_cac_abort_wk); cfg80211_sched_dfs_chan_update(rdev); @@ -975,10 +975,10 @@ void cfg80211_cac_event(struct net_device *netdev, EXPORT_SYMBOL(cfg80211_cac_event); static void -__cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, - const struct cfg80211_chan_def *chandef, - enum nl80211_radar_event event) +__cfg80211_background_cac_event(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + const struct cfg80211_chan_def *chandef, + enum nl80211_radar_event event) { struct wiphy *wiphy = &rdev->wiphy; struct net_device *netdev; @@ -988,7 +988,7 @@ __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, if (!cfg80211_chandef_valid(chandef)) return; - if (!rdev->offchan_radar_wdev) + if (!rdev->background_radar_wdev) return; switch (event) { @@ -997,12 +997,12 @@ __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, memcpy(&rdev->cac_done_chandef, chandef, sizeof(*chandef)); queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk); cfg80211_sched_dfs_chan_update(rdev); - wdev = rdev->offchan_radar_wdev; + wdev = rdev->background_radar_wdev; break; case NL80211_RADAR_CAC_ABORTED: - if (!cancel_delayed_work(&rdev->offchan_cac_done_wk)) + if (!cancel_delayed_work(&rdev->background_cac_done_wk)) return; - wdev = rdev->offchan_radar_wdev; + wdev = rdev->background_radar_wdev; break; case NL80211_RADAR_CAC_STARTED: break; @@ -1015,49 +1015,49 @@ __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, } static void -cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, - const struct cfg80211_chan_def *chandef, - enum nl80211_radar_event event) +cfg80211_background_cac_event(struct cfg80211_registered_device *rdev, + const struct cfg80211_chan_def *chandef, + enum nl80211_radar_event event) { wiphy_lock(&rdev->wiphy); - __cfg80211_offchan_cac_event(rdev, rdev->offchan_radar_wdev, - chandef, event); + __cfg80211_background_cac_event(rdev, rdev->background_radar_wdev, + chandef, event); wiphy_unlock(&rdev->wiphy); } -void cfg80211_offchan_cac_done_wk(struct work_struct *work) +void cfg80211_background_cac_done_wk(struct work_struct *work) { struct delayed_work *delayed_work = to_delayed_work(work); struct cfg80211_registered_device *rdev; rdev = container_of(delayed_work, struct cfg80211_registered_device, - offchan_cac_done_wk); - cfg80211_offchan_cac_event(rdev, &rdev->offchan_radar_chandef, - NL80211_RADAR_CAC_FINISHED); + background_cac_done_wk); + cfg80211_background_cac_event(rdev, &rdev->background_radar_chandef, + NL80211_RADAR_CAC_FINISHED); } -void cfg80211_offchan_cac_abort_wk(struct work_struct *work) +void cfg80211_background_cac_abort_wk(struct work_struct *work) { struct cfg80211_registered_device *rdev; rdev = container_of(work, struct cfg80211_registered_device, - offchan_cac_abort_wk); - cfg80211_offchan_cac_event(rdev, &rdev->offchan_radar_chandef, - NL80211_RADAR_CAC_ABORTED); + background_cac_abort_wk); + cfg80211_background_cac_event(rdev, &rdev->background_radar_chandef, + NL80211_RADAR_CAC_ABORTED); } -void cfg80211_offchan_cac_abort(struct wiphy *wiphy) +void cfg80211_background_cac_abort(struct wiphy *wiphy) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - queue_work(cfg80211_wq, &rdev->offchan_cac_abort_wk); + queue_work(cfg80211_wq, &rdev->background_cac_abort_wk); } -EXPORT_SYMBOL(cfg80211_offchan_cac_abort); +EXPORT_SYMBOL(cfg80211_background_cac_abort); int -cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, - struct cfg80211_chan_def *chandef) +cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + struct cfg80211_chan_def *chandef) { unsigned int cac_time_ms; int err; @@ -1065,19 +1065,19 @@ cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, lockdep_assert_wiphy(&rdev->wiphy); if (!wiphy_ext_feature_isset(&rdev->wiphy, - NL80211_EXT_FEATURE_RADAR_OFFCHAN)) + NL80211_EXT_FEATURE_RADAR_BACKGROUND)) return -EOPNOTSUPP; /* Offchannel chain already locked by another wdev */ - if (rdev->offchan_radar_wdev && rdev->offchan_radar_wdev != wdev) + if (rdev->background_radar_wdev && rdev->background_radar_wdev != wdev) return -EBUSY; /* CAC already in progress on the offchannel chain */ - if (rdev->offchan_radar_wdev == wdev && - delayed_work_pending(&rdev->offchan_cac_done_wk)) + if (rdev->background_radar_wdev == wdev && + delayed_work_pending(&rdev->background_cac_done_wk)) return -EBUSY; - err = rdev_set_radar_offchan(rdev, chandef); + err = rdev_set_radar_background(rdev, chandef); if (err) return err; @@ -1085,30 +1085,31 @@ cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, if (!cac_time_ms) cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; - rdev->offchan_radar_chandef = *chandef; - rdev->offchan_radar_wdev = wdev; /* Get offchain ownership */ + rdev->background_radar_chandef = *chandef; + rdev->background_radar_wdev = wdev; /* Get offchain ownership */ - __cfg80211_offchan_cac_event(rdev, wdev, chandef, - NL80211_RADAR_CAC_STARTED); - queue_delayed_work(cfg80211_wq, &rdev->offchan_cac_done_wk, + __cfg80211_background_cac_event(rdev, wdev, chandef, + NL80211_RADAR_CAC_STARTED); + queue_delayed_work(cfg80211_wq, &rdev->background_cac_done_wk, msecs_to_jiffies(cac_time_ms)); return 0; } -void cfg80211_stop_offchan_radar_detection(struct wireless_dev *wdev) +void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev) { struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); lockdep_assert_wiphy(wiphy); - if (wdev != rdev->offchan_radar_wdev) + if (wdev != rdev->background_radar_wdev) return; - rdev_set_radar_offchan(rdev, NULL); - rdev->offchan_radar_wdev = NULL; /* Release offchain ownership */ + rdev_set_radar_background(rdev, NULL); + rdev->background_radar_wdev = NULL; /* Release offchain ownership */ - __cfg80211_offchan_cac_event(rdev, wdev, &rdev->offchan_radar_chandef, - NL80211_RADAR_CAC_ABORTED); + __cfg80211_background_cac_event(rdev, wdev, + &rdev->background_radar_chandef, + NL80211_RADAR_CAC_ABORTED); } -- cgit v1.2.3