[U-Boot] [PATCH v4 20/23] net: rtl8169: Honor CONFIG_SYS_RX_ETH_BUFFER

[Simon Glass]

From: Thierry Reding <treding at nvidia.com>

According to the top-level README file, this configuration setting can
be used to override the number of receive buffers that an ethernet NIC
uses.

Signed-off-by: Thierry Reding <treding at nvidia.com>
Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v4: None
Changes in v3: None

 drivers/net/rtl8169.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/rtl8169.c b/drivers/net/rtl8169.c
index c3ce175..955b2e1 100644
--- a/drivers/net/rtl8169.c
+++ b/drivers/net/rtl8169.c
@@ -79,7 +79,11 @@ static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
 #define InterFrameGap	0x03	/* 3 means InterFrameGap = the shortest one */
 
 #define NUM_TX_DESC	1	/* Number of Tx descriptor registers */
-#define NUM_RX_DESC	4	/* Number of Rx descriptor registers */
+#ifdef CONFIG_SYS_RX_ETH_BUFFER
+  #define NUM_RX_DESC	CONFIG_SYS_RX_ETH_BUFFER
+#else
+  #define NUM_RX_DESC	4	/* Number of Rx descriptor registers */
+#endif
 #define RX_BUF_SIZE	1536	/* Rx Buffer size */
 #define RX_BUF_LEN	8192
 
-- 
2.2.0.rc0.207.ga3a616c