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 <[email protected]> --- drivers/net/wireless/mediatek/mt76/dma.c | 3 ++- drivers/net/wireless/mediatek/mt76/mt76.h | 5 +++++ drivers/net/wireless/mediatek/mt76/tx.c | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 54e6d985d384..2bc5dd9a9e9f 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -176,7 +176,8 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, enum mt76_txq_id qid, bool flush) } 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; } diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 91f9433bf979..665f843008d0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -231,6 +231,8 @@ struct mt76_txq { struct mt76_txwi_cache { struct list_head list; dma_addr_t dma_addr; + + struct sk_buff *skb; }; struct mt76_rx_tid { @@ -284,8 +286,11 @@ 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); diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c index 08587d262469..6a0c4b8a649d 100644 --- a/drivers/net/wireless/mediatek/mt76/tx.c +++ b/drivers/net/wireless/mediatek/mt76/tx.c @@ -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) { -- 2.20.1
