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mac80211_hwsim: delay hardware remain-on-channel start 

Typically drivers that implement hardware remain-on-channel will
have to wait for scheduling constraints, so make hwsim also wait
a little bit (only 20ms) before actually starting the operation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-11-24 18:29:45 +01:00
parent 5ee00dbd52
commit 661ef475fd
1 changed files with 25 additions and 5 deletions
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30
drivers/net/wireless/mac80211_hwsim.c
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@ -495,6 +495,9 @@ struct mac80211_hwsim_data {
const struct ieee80211_regdomain *regd;
struct ieee80211_channel *tmp_chan;
struct ieee80211_channel *roc_chan;
u32 roc_duration;
struct delayed_work roc_start;
struct delayed_work roc_done;
struct delayed_work hw_scan;
struct cfg80211_scan_request *hw_scan_request;
@ -1988,6 +1991,23 @@ static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
mutex_unlock(&hwsim->mutex);
}
static void hw_roc_start(struct work_struct *work)
{
struct mac80211_hwsim_data *hwsim =
container_of(work, struct mac80211_hwsim_data, roc_start.work);
mutex_lock(&hwsim->mutex);
wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
hwsim->tmp_chan = hwsim->roc_chan;
ieee80211_ready_on_channel(hwsim->hw);
ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
msecs_to_jiffies(hwsim->roc_duration));
mutex_unlock(&hwsim->mutex);
}
static void hw_roc_done(struct work_struct *work)
{
struct mac80211_hwsim_data *hwsim =
@ -2015,16 +2035,14 @@ static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
return -EBUSY;
}
hwsim->tmp_chan = chan;
hwsim->roc_chan = chan;
hwsim->roc_duration = duration;
mutex_unlock(&hwsim->mutex);
wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
chan->center_freq, duration);
ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
ieee80211_ready_on_channel(hw);
ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
msecs_to_jiffies(duration));
return 0;
}
@ -2032,6 +2050,7 @@ static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
{
struct mac80211_hwsim_data *hwsim = hw->priv;
cancel_delayed_work_sync(&hwsim->roc_start);
cancel_delayed_work_sync(&hwsim->roc_done);
mutex_lock(&hwsim->mutex);
@ -2376,6 +2395,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
}
INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);