2 files changed, 8 insertions, 0 deletions

diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt
index d0aeeadd264b..61f40a3fa7ea 100644
--- a/Documentation/networking/stmmac.txt
+++ b/Documentation/networking/stmmac.txt
@@ -116,6 +116,7 @@ and detailed below as well:
         int has_gmac;
         int enh_desc;
         int tx_coe;
+        int rx_coe;
         int bugged_jumbo;
         int pmt;
         int force_sf_dma_mode;
@@ -140,6 +141,8 @@ Where:
  o has_gmac: uses the GMAC core.
  o enh_desc: if sets the MAC will use the enhanced descriptor structure.
  o tx_coe: core is able to perform the tx csum in HW.
+ o rx_coe: the supports three check sum offloading engine types:
+           type_1, type_2 (full csum) and no RX coe.
  o bugged_jumbo: some HWs are not able to perform the csum in HW for
                 over-sized frames due to limited buffer sizes.
                 Setting this flag the csum will be done in SW on
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 172b5e15df2e..a9b4d6cb96e9 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -28,6 +28,10 @@
 
 #include <linux/platform_device.h>
 
+#define STMMAC_RX_COE_NONE      0
+#define STMMAC_RX_COE_TYPE1     1
+#define STMMAC_RX_COE_TYPE2     2
+
 /* Platfrom data for platform device structure's platform_data field */
 
 struct stmmac_mdio_bus_data {
@@ -49,6 +53,7 @@ struct plat_stmmacenet_data {
         int has_gmac;
         int enh_desc;
         int tx_coe;
+        int rx_coe;
         int bugged_jumbo;
         int pmt;
         int force_sf_dma_mode;