int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
u8 sta_id;
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU))
return -1;
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
(!info->control.vif ||
info->hw_queue != info->control.vif->cab_queue)))
return -1;
/*
* IWL_MVM_OFFCHANNEL_QUEUE is used for ROC packets that can be used
* in 2 different types of vifs, P2P & STATION. P2P uses the offchannel
* queue. STATION (HS2.0) uses the auxiliary context of the FW,
* and hence needs to be sent on the aux queue
*/
if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
info->control.vif->type == NL80211_IFTYPE_STATION)
IEEE80211_SKB_CB(skb)->hw_queue = mvm->aux_queue;
/*
* If the interface on which frame is sent is the P2P_DEVICE
* or an AP/GO interface use the broadcast station associated
* with it; otherwise use the AUX station.
*/
if (info->control.vif &&
(info->control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
info->control.vif->type == NL80211_IFTYPE_AP)) {
struct iwl_mvm_vif *mvmvif =
iwl_mvm_vif_from_mac80211(info->control.vif);
sta_id = mvmvif->bcast_sta.sta_id;
} else {
sta_id = mvm->aux_sta.sta_id;
}
IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, info->hw_queue);
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, NULL, sta_id);
if (!dev_cmd)
return -1;
/* From now on, we cannot access info->control */
tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, ieee80211_hdrlen(hdr->frame_control));
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, info->hw_queue)) {
iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
return -1;
}
return 0;
}
int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
u8 sta_id;
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU))
return -1;
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
(!info->control.vif ||
info->hw_queue != info->control.vif->cab_queue)))
return -1;
/*
* If the interface on which frame is sent is the P2P_DEVICE
* or an AP/GO interface use the broadcast station associated
* with it; otherwise use the AUX station.
*/
if (info->control.vif &&
(info->control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
info->control.vif->type == NL80211_IFTYPE_AP)) {
struct iwl_mvm_vif *mvmvif =
iwl_mvm_vif_from_mac80211(info->control.vif);
sta_id = mvmvif->bcast_sta.sta_id;
} else {
sta_id = mvm->aux_sta.sta_id;
}
IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, info->hw_queue);
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, NULL, sta_id);
if (!dev_cmd)
return -1;
/* From now on, we cannot access info->control */
tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, ieee80211_hdrlen(hdr->frame_control));
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, info->hw_queue)) {
iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
return -1;
}
return 0;
}
/*
* Sets the fields in the Tx cmd that are crypto related
*/
int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
struct ieee80211_sta *sta)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_mvm_sta *mvmsta;
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
__le16 fc;
u16 seq_number = 0;
u8 tid = IWL_MAX_TID_COUNT;
u8 txq_id = info->hw_queue;
bool is_data_qos = false, is_ampdu = false;
mvmsta = (void *)sta->drv_priv;
fc = hdr->frame_control;
if (WARN_ON_ONCE(!mvmsta))
return -1;
if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
return -1;
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, sta, mvmsta->sta_id);
if (!dev_cmd)
goto drop;
tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
/* From now on, we cannot access info->control */
spin_lock(&mvmsta->lock);
if (ieee80211_is_data_qos(fc) && !ieee80211_is_qos_nullfunc(fc)) {
u8 *qc = NULL;
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
goto drop_unlock_sta;
seq_number = mvmsta->tid_data[tid].seq_number;
seq_number &= IEEE80211_SCTL_SEQ;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(seq_number);
seq_number += 0x10;
is_data_qos = true;
is_ampdu = info->flags & IEEE80211_TX_CTL_AMPDU;
}
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, ieee80211_hdrlen(fc));
WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM);
if (is_ampdu) {
if (WARN_ON_ONCE(mvmsta->tid_data[tid].state != IWL_AGG_ON))
goto drop_unlock_sta;
txq_id = mvmsta->tid_data[tid].txq_id;
}
IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id,
tid, txq_id, seq_number);
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))
goto drop_unlock_sta;
if (is_data_qos && !ieee80211_has_morefrags(fc))
mvmsta->tid_data[tid].seq_number = seq_number;
spin_unlock(&mvmsta->lock);
if (txq_id < mvm->first_agg_queue)
atomic_inc(&mvm->pending_frames[mvmsta->sta_id]);
return 0;
drop_unlock_sta:
iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
spin_unlock(&mvmsta->lock);
drop:
return -1;
}