diff options
| author | Bo Jiao <Bo.Jiao@mediatek.com> | 2021-12-20 10:17:55 +0800 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2022-02-03 13:57:56 +0100 |
| commit | f9b627f1e074164ab66ae26fe9e639ae5d45bbd8 (patch) | |
| tree | d52bffe7bd2e11dea8fb793800bd2f07ab011d8f /drivers/net/wireless/mediatek/mt76/dma.c | |
| parent | cd4c314a65d3cce6486f8303e42aca04fd9f9011 (diff) | |
| download | linux-f9b627f1e074164ab66ae26fe9e639ae5d45bbd8.tar.gz | |
mt76: add MT_RXQ_MAIN_WA for mt7916
mt7916 add MT_RXQ_MAIN_WA to receive tx free event separately
This is an intermediate patch to add mt7916 support.
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/dma.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/dma.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 3a9af8931c35..fd4c51b6eaa0 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -93,7 +93,7 @@ mt76_dma_queue_reset(struct mt76_dev *dev, struct mt76_queue *q) { int i; - if (!q) + if (!q || !q->ndesc) return; /* clear descriptors */ @@ -233,7 +233,7 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, struct mt76_queue *q, bool flush) struct mt76_queue_entry entry; int last; - if (!q) + if (!q || !q->ndesc) return; spin_lock_bh(&q->cleanup_lock); @@ -448,6 +448,9 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q) int len = SKB_WITH_OVERHEAD(q->buf_size); int offset = q->buf_offset; + if (!q->ndesc) + return 0; + spin_lock_bh(&q->lock); while (q->queued < q->ndesc - 1) { @@ -484,6 +487,9 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q) void *buf; bool more; + if (!q->ndesc) + return; + spin_lock_bh(&q->lock); do { buf = mt76_dma_dequeue(dev, q, true, NULL, NULL, &more); @@ -508,6 +514,9 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid) struct mt76_queue *q = &dev->q_rx[qid]; int i; + if (!q->ndesc) + return; + for (i = 0; i < q->ndesc; i++) q->desc[i].ctrl = cpu_to_le32(MT_DMA_CTL_DMA_DONE); |