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mt76: mt7622: fix DMA unmap length

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Fix DMA unmap length estimation in mt7615_txp_skb_unmap_hw for mt7622
chipset

Fixes: 6aa4ed7927f1 ("mt76: mt7615: implement DMA support for MT7622")
Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2020-04-09 19:54:25 +02:00
committed by Felix Fietkau
parent 05b23d7478
commit b92c0d5767
2 changed files with 4 additions and 3 deletions
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mt7615/mac.c
+3 -3
View File
@@ -695,7 +695,7 @@ mt7615_txp_skb_unmap_hw(struct mt76_dev *dev, struct mt7615_hw_txp *txp)
len = le16_to_cpu(ptr->len0);
last = len & MT_TXD_LEN_MSDU_LAST;
len &= ~MT_TXD_LEN_MSDU_LAST;
len &= MT_TXD_LEN_MASK;
dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf0), len,
DMA_TO_DEVICE);
if (last)
@@ -703,7 +703,7 @@ mt7615_txp_skb_unmap_hw(struct mt76_dev *dev, struct mt7615_hw_txp *txp)
len = le16_to_cpu(ptr->len1);
last = len & MT_TXD_LEN_MSDU_LAST;
len &= ~MT_TXD_LEN_MSDU_LAST;
len &= MT_TXD_LEN_MASK;
dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf1), len,
DMA_TO_DEVICE);
if (last)
@@ -1114,8 +1114,8 @@ mt7615_write_hw_txp(struct mt7615_dev *dev, struct mt76_tx_info *tx_info,
txp->msdu_id[0] = cpu_to_le16(id | MT_MSDU_ID_VALID);
for (i = 0; i < nbuf; i++) {
u16 len = tx_info->buf[i + 1].len & MT_TXD_LEN_MASK;
u32 addr = tx_info->buf[i + 1].addr;
u16 len = tx_info->buf[i + 1].len;
if (i == nbuf - 1)
len |= MT_TXD_LEN_MSDU_LAST |
mt7615/mac.h
+1
View File
@@ -253,6 +253,7 @@ enum tx_phy_bandwidth {
#define MT_MSDU_ID_VALID BIT(15)
#define MT_TXD_LEN_MASK GENMASK(11, 0)
#define MT_TXD_LEN_MSDU_LAST BIT(14)
#define MT_TXD_LEN_AMSDU_LAST BIT(15)