From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 13 Jan 2015 00:34:45 +0000 (+0000)
Subject: ramips: use a larger number of rx descriptors on mt7621 to work around rx overrun... 
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=acfc6c153bb4559ab196c7117f49dad68fd1f419;p=openwrt%2Fstaging%2Fyousong.git

ramips: use a larger number of rx descriptors on mt7621 to work around rx overrun related packet loss

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43953
---

diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h
index d26acf23d5..41e1268b00 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h
+++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h
@@ -47,7 +47,11 @@ enum fe_reg {
 #define FE_DRV_VERSION		"0.1.0"
 
 /* power of 2 to let NEXT_TX_DESP_IDX work */
+#ifdef CONFIG_SOC_MT7621
+#define NUM_DMA_DESC		(1 << 9)
+#else
 #define NUM_DMA_DESC		(1 << 7)
+#endif
 #define MAX_DMA_DESC		0xfff
 
 #define FE_DELAY_EN_INT		0x80