From: Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx>
In order to use zero-copying, disable usb rx bulk aggregation
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx>
Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt76x0/init.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
index ddbb52b4e5ac..b28ea45a7282 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
@@ -110,17 +110,17 @@ static void mt76x0_reset_csr_bbp(struct mt76x0_dev *dev)
static void mt76x0_init_usb_dma(struct mt76x0_dev *dev)
{
- struct mt76_usb *usb = &dev->mt76.usb;
u32 val;
val = mt76_rr(dev, MT_USB_DMA_CFG);
- val |= FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, MT_USB_AGGR_TIMEOUT) |
- FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_LMT, MT_USB_AGGR_SIZE_LIMIT) |
- MT_USB_DMA_CFG_RX_BULK_EN |
+ val |= MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN;
- if (usb->in_max_packet == 512)
- val |= MT_USB_DMA_CFG_RX_BULK_AGG_EN;
+
+ /* disable AGGR_BULK_RX in order to receive one
+ * frame in each rx urb and avoid copies
+ */
+ val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;
mt76_wr(dev, MT_USB_DMA_CFG, val);
val = mt76_rr(dev, MT_COM_REG0);
--
2.7.5
