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mt76: dma: introduce skb field in mt76_txwi_cache

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Introduce skb field in mt76_txwi_cache. Moreover add txwi_flags
to mt76_driver_ops since new chipsets will release mt76_txwi_cache/skbs
at tx completion instead of dma one.
This is a preliminary patch to add mt7615 support

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-04-02 11:47:58 +02:00 committed by Felix Fietkau
parent cfaae9e67c
commit 6ca66722a8
3 changed files with 8 additions and 1 deletions
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3
drivers/net/wireless/mediatek/mt76/dma.c
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@ -174,7 +174,8 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, enum mt76_txq_id qid, bool flush)
dev->drv->tx_complete_skb(dev, qid, &entry);
if (entry.txwi) {
mt76_put_txwi(dev, entry.txwi);
if (!(dev->drv->txwi_flags & MT_TXWI_NO_FREE))
mt76_put_txwi(dev, entry.txwi);
wake = !flush;
}

5
drivers/net/wireless/mediatek/mt76/mt76.h
View File

@ -232,6 +232,8 @@ struct mt76_txq {
struct mt76_txwi_cache {
struct list_head list;
dma_addr_t dma_addr;
struct sk_buff *skb;
};
struct mt76_rx_tid {
@ -285,8 +287,11 @@ struct mt76_hw_cap {
bool has_5ghz;
};
#define MT_TXWI_NO_FREE BIT(0)
struct mt76_driver_ops {
bool tx_aligned4_skbs;
u32 txwi_flags;
u16 txwi_size;
void (*update_survey)(struct mt76_dev *dev);

1
drivers/net/wireless/mediatek/mt76/tx.c
View File

@ -74,6 +74,7 @@ mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t)
list_add(&t->list, &dev->txwi_cache);
spin_unlock_bh(&dev->lock);
}
EXPORT_SYMBOL_GPL(mt76_put_txwi);
void mt76_tx_free(struct mt76_dev *dev)
{