mt76: set txwi_size according to the driver value
Dynamically allocate txwi since new chipsets will use longer txwi descriptors Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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ce0fd82589
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f3950a4141
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@ -296,12 +296,14 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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struct mt76_txwi_cache *t;
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struct sk_buff *iter;
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dma_addr_t addr;
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u8 *txwi;
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t = mt76_get_txwi(dev);
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if (!t) {
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ieee80211_free_txskb(dev->hw, skb);
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return -ENOMEM;
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}
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txwi = mt76_get_txwi_ptr(dev, t);
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skb->prev = skb->next = NULL;
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if (dev->drv->tx_aligned4_skbs)
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@ -331,11 +333,11 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
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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_sync_single_for_cpu(dev->dev, t->dma_addr, dev->drv->txwi_size,
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DMA_TO_DEVICE);
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ret = dev->drv->tx_prepare_skb(dev, &t->txwi, skb, qid, wcid, sta,
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ret = dev->drv->tx_prepare_skb(dev, txwi, skb, qid, wcid, sta,
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&tx_info);
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dma_sync_single_for_device(dev->dev, t->dma_addr, sizeof(t->txwi),
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dma_sync_single_for_device(dev->dev, t->dma_addr, dev->drv->txwi_size,
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DMA_TO_DEVICE);
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if (ret < 0)
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goto unmap;
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@ -229,12 +229,10 @@ struct mt76_txq {
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};
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struct mt76_txwi_cache {
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u32 txwi[8];
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dma_addr_t dma_addr;
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struct list_head list;
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dma_addr_t dma_addr;
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};
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struct mt76_rx_tid {
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struct rcu_head rcu_head;
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@ -617,6 +615,12 @@ void mt76_seq_puts_array(struct seq_file *file, const char *str,
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int mt76_eeprom_init(struct mt76_dev *dev, int len);
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void mt76_eeprom_override(struct mt76_dev *dev);
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static inline u8 *
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mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t)
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{
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return (u8 *)t - dev->drv->txwi_size;
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}
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/* increment with wrap-around */
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static inline int mt76_incr(int val, int size)
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{
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@ -770,6 +770,7 @@ void mt76x02_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid,
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{
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struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
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struct mt76x02_txwi *txwi;
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u8 *txwi_ptr;
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if (!e->txwi) {
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dev_kfree_skb_any(e->skb);
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@ -778,7 +779,8 @@ void mt76x02_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid,
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mt76x02_mac_poll_tx_status(dev, false);
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txwi = (struct mt76x02_txwi *) &e->txwi->txwi;
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txwi_ptr = mt76_get_txwi_ptr(mdev, e->txwi);
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txwi = (struct mt76x02_txwi *)txwi_ptr;
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trace_mac_txdone_add(dev, txwi->wcid, txwi->pktid);
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mt76_tx_complete_skb(mdev, e->skb);
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@ -175,7 +175,6 @@ int mt76x02_dma_init(struct mt76x02_dev *dev)
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struct mt76_queue *q;
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void *status_fifo;
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BUILD_BUG_ON(sizeof(t->txwi) < sizeof(struct mt76x02_txwi));
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BUILD_BUG_ON(sizeof(struct mt76x02_rxwi) > MT_RX_HEADROOM);
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fifo_size = roundup_pow_of_two(32 * sizeof(struct mt76x02_tx_status));
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@ -21,15 +21,17 @@ mt76_alloc_txwi(struct mt76_dev *dev)
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{
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struct mt76_txwi_cache *t;
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dma_addr_t addr;
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u8 *txwi;
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int size;
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size = (sizeof(*t) + L1_CACHE_BYTES - 1) & ~(L1_CACHE_BYTES - 1);
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t = devm_kzalloc(dev->dev, size, GFP_ATOMIC);
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if (!t)
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size = L1_CACHE_ALIGN(dev->drv->txwi_size + sizeof(*t));
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txwi = devm_kzalloc(dev->dev, size, GFP_ATOMIC);
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if (!txwi)
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return NULL;
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addr = dma_map_single(dev->dev, &t->txwi, sizeof(t->txwi),
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addr = dma_map_single(dev->dev, txwi, dev->drv->txwi_size,
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DMA_TO_DEVICE);
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t = (struct mt76_txwi_cache *)(txwi + dev->drv->txwi_size);
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t->dma_addr = addr;
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return t;
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@ -78,7 +80,7 @@ void mt76_tx_free(struct mt76_dev *dev)
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struct mt76_txwi_cache *t;
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while ((t = __mt76_get_txwi(dev)) != NULL)
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dma_unmap_single(dev->dev, t->dma_addr, sizeof(t->txwi),
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dma_unmap_single(dev->dev, t->dma_addr, dev->drv->txwi_size,
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DMA_TO_DEVICE);
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}
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