This is a note to let you know that I've just added the patch titled rtw88: increse the size of rx buffer size to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rtw88-increse-the-size-of-rx-buffer-size.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 02e76eb60bf3ff9151a3fd4fbf4077d21615e80b Author: Tzu-En Huang <tehuang@xxxxxxxxxxx> Date: Fri Sep 25 14:12:15 2020 +0800 rtw88: increse the size of rx buffer size [ 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 <tehuang@xxxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20200925061219.23754-2-tehuang@xxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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)