iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mt76: mt7615: use larger rx buffers if VHT is supported

Browse Source 
In VHT mode we can receive larger MPDUs. Increasing the buffer size reduces
fragmentation here, which should improve performance.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2020-04-20 16:53:28 +02:00
parent 55961d8be3
commit 61cb60758a
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/wireless/mediatek/mt76/mt7615/dma.c
View File

@ -192,8 +192,13 @@ static void mt7663_dma_sched_init(struct mt7615_dev *dev)
int mt7615_dma_init(struct mt7615_dev *dev)
{
int rx_ring_size = MT7615_RX_RING_SIZE;
int rx_buf_size = MT_RX_BUF_SIZE;
int ret;
/* Increase buffer size to receive large VHT MPDUs */
if (dev->mt76.cap.has_5ghz)
rx_buf_size *= 2;
mt76_dma_attach(&dev->mt76);
mt76_wr(dev, MT_WPDMA_GLO_CFG,
@ -234,7 +239,7 @@ int mt7615_dma_init(struct mt7615_dev *dev)
/* init rx queues */
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], 1,
MT7615_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE,
MT7615_RX_MCU_RING_SIZE, rx_buf_size,
MT_RX_RING_BASE);
if (ret)
return ret;
@ -243,7 +248,7 @@ int mt7615_dma_init(struct mt7615_dev *dev)
rx_ring_size /= 2;
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], 0,
rx_ring_size, MT_RX_BUF_SIZE, MT_RX_RING_BASE);
rx_ring_size, rx_buf_size, MT_RX_RING_BASE);
if (ret)
return ret;