static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_channel *channel,
- int duration)
+ int duration,
+ enum ieee80211_roc_type type)
{
struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
static int iwl_mvm_roc(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_channel *channel,
- int duration)
+ int duration,
+ enum ieee80211_roc_type type)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct cfg80211_chan_def chandef;
return -EINVAL;
}
- IWL_DEBUG_MAC80211(mvm, "enter (%d, %d)\n", channel->hw_value,
- duration);
+ IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
+ duration, type);
mutex_lock(&mvm->mutex);
static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_channel *chan,
- int duration)
+ int duration,
+ enum ieee80211_roc_type type)
{
struct mac80211_hwsim_data *hwsim = hw->priv;
static int wlcore_op_remain_on_channel(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_channel *chan,
- int duration)
+ int duration,
+ enum ieee80211_roc_type type)
{
struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
struct wl1271 *wl = hw->priv;
};
/**
+ * enum ieee80211_roc_type - remain on channel type
+ *
+ * With the support for multi channel contexts and multi channel operations,
+ * remain on channel operations might be limited/deferred/aborted by other
+ * flows/operations which have higher priority (and vise versa).
+ * Specifying the ROC type can be used by devices to prioritize the ROC
+ * operations compared to other operations/flows.
+ *
+ * @IEEE80211_ROC_TYPE_NORMAL: There are no special requirements for this ROC.
+ * @IEEE80211_ROC_TYPE_MGMT_TX: The remain on channel request is required
+ * for sending managment frames offchannel.
+ */
+enum ieee80211_roc_type {
+ IEEE80211_ROC_TYPE_NORMAL = 0,
+ IEEE80211_ROC_TYPE_MGMT_TX,
+};
+
+/**
* struct ieee80211_ops - callbacks from mac80211 to the driver
*
* This structure contains various callbacks that the driver may
int (*remain_on_channel)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_channel *chan,
- int duration);
+ int duration,
+ enum ieee80211_roc_type type);
int (*cancel_remain_on_channel)(struct ieee80211_hw *hw);
int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx);
void (*get_ringparam)(struct ieee80211_hw *hw,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *channel,
unsigned int duration, u64 *cookie,
- struct sk_buff *txskb)
+ struct sk_buff *txskb,
+ enum ieee80211_roc_type type)
{
struct ieee80211_roc_work *roc, *tmp;
bool queued = false;
roc->duration = duration;
roc->req_duration = duration;
roc->frame = txskb;
+ roc->type = type;
roc->mgmt_tx_cookie = (unsigned long)txskb;
roc->sdata = sdata;
INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
if (!duration)
duration = 10;
- ret = drv_remain_on_channel(local, sdata, channel, duration);
+ ret = drv_remain_on_channel(local, sdata, channel, duration, type);
if (ret) {
kfree(roc);
return ret;
*
* If it hasn't started yet, just increase the duration
* and add the new one to the list of dependents.
+ * If the type of the new ROC has higher priority, modify the
+ * type of the previous one to match that of the new one.
*/
if (!tmp->started) {
list_add_tail(&roc->list, &tmp->dependents);
tmp->duration = max(tmp->duration, roc->duration);
+ tmp->type = max(tmp->type, roc->type);
queued = true;
break;
}
/*
* In the offloaded ROC case, if it hasn't begun, add
* this new one to the dependent list to be handled
- * when the the master one begins. If it has begun,
+ * when the master one begins. If it has begun,
* check that there's still a minimum time left and
* if so, start this one, transmitting the frame, but
- * add it to the list directly after this one with a
+ * add it to the list directly after this one with
* a reduced time so we'll ask the driver to execute
* it right after finishing the previous one, in the
* hope that it'll also be executed right afterwards,
* effectively extending the old one.
* If there's no minimum time left, just add it to the
* normal list.
+ * TODO: the ROC type is ignored here, assuming that it
+ * is better to immediately use the current ROC.
*/
if (!tmp->hw_begun) {
list_add_tail(&roc->list, &tmp->dependents);
mutex_lock(&local->mtx);
ret = ieee80211_start_roc_work(local, sdata, chan,
- duration, cookie, NULL);
+ duration, cookie, NULL,
+ IEEE80211_ROC_TYPE_NORMAL);
mutex_unlock(&local->mtx);
return ret;
/* This will handle all kinds of coalescing and immediate TX */
ret = ieee80211_start_roc_work(local, sdata, chan,
- wait, cookie, skb);
+ wait, cookie, skb,
+ IEEE80211_ROC_TYPE_MGMT_TX);
if (ret)
kfree_skb(skb);
out_unlock:
static inline int drv_remain_on_channel(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *chan,
- unsigned int duration)
+ unsigned int duration,
+ enum ieee80211_roc_type type)
{
int ret;
might_sleep();
- trace_drv_remain_on_channel(local, sdata, chan, duration);
+ trace_drv_remain_on_channel(local, sdata, chan, duration, type);
ret = local->ops->remain_on_channel(&local->hw, &sdata->vif,
- chan, duration);
+ chan, duration, type);
trace_drv_return_int(local, ret);
return ret;
u32 duration, req_duration;
struct sk_buff *frame;
u64 cookie, mgmt_tx_cookie;
+ enum ieee80211_roc_type type;
};
/* flags used in struct ieee80211_if_managed.flags */
duration = 10;
ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
- duration);
+ duration, roc->type);
roc->started = true;
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *chan,
- unsigned int duration),
+ unsigned int duration,
+ enum ieee80211_roc_type type),
- TP_ARGS(local, sdata, chan, duration),
+ TP_ARGS(local, sdata, chan, duration, type),
TP_STRUCT__entry(
LOCAL_ENTRY
VIF_ENTRY
__field(int, center_freq)
__field(unsigned int, duration)
+ __field(u32, type)
),
TP_fast_assign(
VIF_ASSIGN;
__entry->center_freq = chan->center_freq;
__entry->duration = duration;
+ __entry->type = type;
),
TP_printk(
- LOCAL_PR_FMT VIF_PR_FMT " freq:%dMHz duration:%dms",
+ LOCAL_PR_FMT VIF_PR_FMT " freq:%dMHz duration:%dms type=%d",
LOCAL_PR_ARG, VIF_PR_ARG,
- __entry->center_freq, __entry->duration
+ __entry->center_freq, __entry->duration, __entry->type
)
);
projects / kernel / kernel-generic.git / commitdiff