mt76: introduce mt76_tx_info data structure
Add mt76_tx_info as auxiliary data structure to pass values to tx_prepare_skb pointer. This is a preliminary patch to add support for new chipsets (e.g. mt7615) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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eb071ba77c
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b5903c4703
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@ -283,13 +283,12 @@ int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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struct ieee80211_sta *sta)
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{
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struct mt76_queue *q = dev->q_tx[qid].q;
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struct mt76_tx_info tx_info = {};
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int len, n = 0, ret = -ENOMEM;
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struct mt76_queue_entry e;
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struct mt76_txwi_cache *t;
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struct mt76_queue_buf buf[32];
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int len, n = 0, ret = -ENOMEM;
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struct sk_buff *iter;
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dma_addr_t addr;
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u32 tx_info = 0;
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t = mt76_get_txwi(dev);
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if (!t) {
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@ -306,13 +305,13 @@ int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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if (dma_mapping_error(dev->dev, addr))
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goto free;
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buf[n].addr = t->dma_addr;
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buf[n++].len = dev->drv->txwi_size;
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buf[n].addr = addr;
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buf[n++].len = len;
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tx_info.buf[n].addr = t->dma_addr;
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tx_info.buf[n++].len = dev->drv->txwi_size;
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tx_info.buf[n].addr = addr;
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tx_info.buf[n++].len = len;
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skb_walk_frags(skb, iter) {
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if (n == ARRAY_SIZE(buf))
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if (n == ARRAY_SIZE(tx_info.buf))
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goto unmap;
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addr = dma_map_single(dev->dev, iter->data, iter->len,
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@ -320,9 +319,10 @@ int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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if (dma_mapping_error(dev->dev, addr))
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goto unmap;
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buf[n].addr = addr;
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buf[n++].len = iter->len;
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tx_info.buf[n].addr = addr;
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tx_info.buf[n++].len = iter->len;
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}
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tx_info.nbuf = n;
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dma_sync_single_for_cpu(dev->dev, t->dma_addr, sizeof(t->txwi),
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DMA_TO_DEVICE);
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@ -333,17 +333,18 @@ int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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if (ret < 0)
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goto unmap;
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if (q->queued + (n + 1) / 2 >= q->ndesc - 1) {
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if (q->queued + (tx_info.nbuf + 1) / 2 >= q->ndesc - 1) {
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ret = -ENOMEM;
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goto unmap;
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}
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return mt76_dma_add_buf(dev, q, buf, n, tx_info, skb, t);
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return mt76_dma_add_buf(dev, q, tx_info.buf, tx_info.nbuf,
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tx_info.info, skb, t);
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unmap:
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for (n--; n > 0; n--)
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dma_unmap_single(dev->dev, buf[n].addr, buf[n].len,
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DMA_TO_DEVICE);
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dma_unmap_single(dev->dev, tx_info.buf[n].addr,
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tx_info.buf[n].len, DMA_TO_DEVICE);
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free:
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e.skb = skb;
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@ -83,6 +83,12 @@ struct mt76_queue_buf {
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int len;
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};
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struct mt76_tx_info {
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struct mt76_queue_buf buf[32];
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int nbuf;
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u32 info;
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};
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struct mt76u_buf {
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struct mt76_dev *dev;
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struct urb *urb;
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@ -296,7 +302,8 @@ struct mt76_driver_ops {
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int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid,
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struct ieee80211_sta *sta, u32 *tx_info);
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struct ieee80211_sta *sta,
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struct mt76_tx_info *tx_info);
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void (*tx_complete_skb)(struct mt76_dev *dev, enum mt76_txq_id qid,
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struct mt76_queue_entry *e);
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@ -914,7 +914,7 @@ mt7603_mac_write_txwi(struct mt7603_dev *dev, __le32 *txwi,
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int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info)
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struct mt76_tx_info *tx_info)
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{
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struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
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struct mt7603_sta *msta = container_of(wcid, struct mt7603_sta, wcid);
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@ -225,7 +225,7 @@ void mt7603_filter_tx(struct mt7603_dev *dev, int idx, bool abort);
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int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info);
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struct mt76_tx_info *tx_info);
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void mt7603_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid,
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struct mt76_queue_entry *e);
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@ -174,7 +174,7 @@ void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
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int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info);
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struct mt76_tx_info *tx_info);
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void mt76x02_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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const u8 *mac);
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void mt76x02_sw_scan_complete(struct ieee80211_hw *hw,
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@ -149,7 +149,7 @@ EXPORT_SYMBOL_GPL(mt76x02_tx_status_data);
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int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info)
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struct mt76_tx_info *tx_info)
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{
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struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
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struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
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@ -169,11 +169,11 @@ int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
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if (pid >= MT_PACKET_ID_FIRST)
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qsel = MT_QSEL_MGMT;
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*tx_info = FIELD_PREP(MT_TXD_INFO_QSEL, qsel) |
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MT_TXD_INFO_80211;
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tx_info->info = FIELD_PREP(MT_TXD_INFO_QSEL, qsel) |
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MT_TXD_INFO_80211;
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if (!wcid || wcid->hw_key_idx == 0xff || wcid->sw_iv)
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*tx_info |= MT_TXD_INFO_WIV;
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tx_info->info |= MT_TXD_INFO_WIV;
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return 0;
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}
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@ -28,7 +28,7 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags);
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int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info);
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struct mt76_tx_info *tx_info);
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void mt76x02u_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid,
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struct mt76_queue_entry *e);
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#endif /* __MT76x02_USB_H */
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@ -74,7 +74,7 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
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int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
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struct sk_buff *skb, enum mt76_txq_id qid,
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struct mt76_wcid *wcid, struct ieee80211_sta *sta,
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u32 *tx_info)
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struct mt76_tx_info *tx_info)
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{
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struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
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int pid, len = skb->len, ep = q2ep(mdev->q_tx[qid].q->hw_idx);
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