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From:   <tehuang@realtek.com>
To:     <kvalo@codeaurora.org>, <yhchuang@realtek.com>
CC:     <linux-wireless@vger.kernel.org>
Subject: [PATCH 1/5] rtw88: increse the size of rx buffer size
Date:   Fri, 25 Sep 2020 14:12:15 +0800
Message-ID: <20200925061219.23754-2-tehuang@realtek.com>
In-Reply-To: <20200925061219.23754-1-tehuang@realtek.com>
References: <20200925061219.23754-1-tehuang@realtek.com>
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From: Tzu-En Huang <tehuang@realtek.com>

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>
---
 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 024c2bc275cb..ca17aa9cf7dc 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.h
+++ b/drivers/net/wireless/realtek/rtw88/pci.h
@@ -9,8 +9,8 @@
 #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)
-- 
2.17.1