# \[PATCH AUTOSEL 5.4 40/80\] rtw88: increse the size of rx buffer size - From: Sasha Levin \ - Date: 2020-10-18 19:24:00 - List: netdev - Page: https://ratatoskr.run/netdev/2020/10/6142893 - Thread: https://ratatoskr.run/stable/2020/10/6142876/t.md ```text From: Tzu-En Huang [ Upstream commit ee755732b7a16af018daa77d9562d2493fb7092f ] The vht capability of MAX_MPDU_LENGTH is 11454 in rtw88; however, the rx buffer size for each packet is 8192. When receiving packets that are larger than rx buffer size, it will leads to rx buffer ring overflow. Signed-off-by: Tzu-En Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200925061219.23754-2-tehuang@realtek.com Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtw88/pci.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/pci.h b/drivers/net/wireless/realtek/rtw88/pci.h index 87824a4caba98..a47d871ae506a 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.h +++ b/drivers/net/wireless/realtek/rtw88/pci.h @@ -13,8 +13,8 @@ #define RTK_BEQ_TX_DESC_NUM 256 #define RTK_MAX_RX_DESC_NUM 512 -/* 8K + rx desc size */ -#define RTK_PCI_RX_BUF_SIZE (8192 + 24) +/* 11K + rx desc size */ +#define RTK_PCI_RX_BUF_SIZE (11454 + 24) #define RTK_PCI_CTRL 0x300 #define BIT_RST_TRXDMA_INTF BIT(20) -- 2.25.1 ```