[PATCH 5.4 360/408] rtw88: increse the size of rx buffer size

Greg Kroah-Hartman
2020-10-27T14:45:29Z

From: Tzu-En Huang <tehuang@realtek.com>

[ 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@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200925061219.23754-2-tehuang@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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