mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-08 00:29:36 -04:00
Code Issues Packages Projects Releases Wiki Activity

wifi: mt76: drop the incorrect scatter and gather frame

Browse Source 
The scatter and gather frame may be incorrect because WED and WO may
send frames to host driver interleaved.

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Peter Chiu
2023-02-22 14:27:29 +08:00
committed by Felix Fietkau
parent 9c97df11df
commit e4d2b8bcac
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/mediatek/mt76/dma.c
View File

@@ -402,8 +402,8 @@ mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx,
*info = le32_to_cpu(desc->info);
if (mt76_queue_is_wed_rx(q)) {
u32 token = FIELD_GET(MT_DMA_CTL_TOKEN,
le32_to_cpu(desc->buf1));
u32 buf1 = le32_to_cpu(desc->buf1);
u32 token = FIELD_GET(MT_DMA_CTL_TOKEN, buf1);
struct mt76_txwi_cache *t = mt76_rx_token_release(dev, token);
if (!t)
@@ -424,6 +424,8 @@ mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx,
*drop = !!(ctrl & (MT_DMA_CTL_TO_HOST_A |
MT_DMA_CTL_DROP));
*drop |= !!(buf1 & MT_DMA_CTL_WO_DROP);
}
} else {
buf = e->buf;

1
drivers/net/wireless/mediatek/mt76/dma.h
View File

@@ -19,6 +19,7 @@
#define MT_DMA_CTL_TO_HOST_A BIT(12)
#define MT_DMA_CTL_DROP BIT(14)
#define MT_DMA_CTL_TOKEN GENMASK(31, 16)
#define MT_DMA_CTL_WO_DROP BIT(8)
#define MT_DMA_PPE_CPU_REASON GENMASK(15, 11)
#define MT_DMA_PPE_ENTRY GENMASK(30, 16)