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mt76: revert support for TX_NEEDS_ALIGNED4_SKBS

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This didn't bring the performance benefit that I had hoped for, so the mac80211
patch for this will not make it upstream

Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2019-06-24 23:56:23 +02:00
parent 335e8c6baf
commit 47ddf4b722
7 changed files with 33 additions and 18 deletions
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mt76x02_usb_core.c
+8 -10
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@@ -77,21 +77,19 @@ int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
struct mt76_tx_info *tx_info)
{
struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
struct sk_buff *skb = tx_info->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int pid, hdrlen, len = skb->len, ep = q2ep(mdev->q_tx[qid].q->hw_idx);
bool ampdu = IEEE80211_SKB_CB(skb)->flags & IEEE80211_TX_CTL_AMPDU;
int pid, len = tx_info->skb->len, ep = q2ep(mdev->q_tx[qid].q->hw_idx);
struct mt76x02_txwi *txwi;
bool ampdu = IEEE80211_SKB_CB(tx_info->skb)->flags & IEEE80211_TX_CTL_AMPDU;
enum mt76_qsel qsel;
u32 flags;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
len -= skb->len > hdrlen ? (hdrlen & 2) : 0;
txwi = (struct mt76x02_txwi *)(skb->data - sizeof(struct mt76x02_txwi));
mt76x02_mac_write_txwi(dev, txwi, skb, wcid, sta, len);
skb_push(skb, sizeof(struct mt76x02_txwi));
mt76_insert_hdr_pad(tx_info->skb);
pid = mt76_tx_status_skb_add(mdev, wcid, skb);
txwi = (struct mt76x02_txwi *)(tx_info->skb->data - sizeof(*txwi));
mt76x02_mac_write_txwi(dev, txwi, tx_info->skb, wcid, sta, len);
skb_push(tx_info->skb, sizeof(*txwi));
pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
/* encode packet rate for no-skb packet id to fix up status reporting */
if (pid == MT_PACKET_ID_NO_SKB)