tg3: Turn off multiple DMA reads for 5717
The 5717's DMA read engine has a bug when initiating multiple DMA reads
across the PCIe bus. This patch disables the feature.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 46db4ad..a8fb53a 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1258,6 +1258,7 @@
#define RDMAC_MODE_MBUF_SBD_CRPT_ENAB 0x00002000
#define RDMAC_MODE_FIFO_SIZE_128 0x00020000
#define RDMAC_MODE_FIFO_LONG_BURST 0x00030000
+#define RDMAC_MODE_MULT_DMA_RD_DIS 0x01000000
#define RDMAC_MODE_IPV4_LSO_EN 0x08000000
#define RDMAC_MODE_IPV6_LSO_EN 0x10000000
#define RDMAC_STATUS 0x00004804