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

wifi: mt76: mt7921: reduce the size of MCU firmware download Rx queue

Browse Source 
We actually don't need the reserve the 512 entries for the MCU firmware
download Rx queue because the queue was only used in the firmware download
phase to save the most of space and the reduction can significantly help
with reducing latency we spent by ~20% further in resetting the Rx queue
as the device was waking up from deep sleep mode.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang 2023-11-22 06:27:22 +08:00 committed by Felix Fietkau
parent 4920a3a128
commit 4812ba9ab9
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
View File

@ -12,7 +12,8 @@
#define MT7921_TX_FWDL_RING_SIZE 128
#define MT7921_RX_RING_SIZE 1536
#define MT7921_RX_MCU_RING_SIZE 512
#define MT7921_RX_MCU_RING_SIZE 8
#define MT7921_RX_MCU_WA_RING_SIZE 512
#define MT7921_EEPROM_SIZE 3584
#define MT7921_TOKEN_SIZE 8192

2
drivers/net/wireless/mediatek/mt76/mt7921/pci.c
View File

@ -200,7 +200,7 @@ static int mt7921_dma_init(struct mt792x_dev *dev)
/* Change mcu queue after firmware download */
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA],
MT7921_RXQ_MCU_WM,
MT7921_RX_MCU_RING_SIZE,
MT7921_RX_MCU_WA_RING_SIZE,
MT_RX_BUF_SIZE, MT_WFDMA0(0x540));
if (ret)
return ret;