net: pcs: xpcs: add specific vendor supoprt for Wangxun 10Gb NICs

Since Wangxun 10Gb NICs require some special configuration on the IP of
Synopsys Designware XPCS, introduce dev_flag for different vendors. Read
OUI from device identifier registers, to detect Wangxun devices.

And xpcs_soft_reset() is skipped to avoid the reset of device identifier
registers.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h
index ff99cf7a5d0d..f37e8acfd351 100644
--- a/include/linux/pcs/pcs-xpcs.h
+++ b/include/linux/pcs/pcs-xpcs.h
@@ -20,12 +20,19 @@
 #define DW_AN_C37_1000BASEX		4
 #define DW_10GBASER			5
 
+/* device vendor OUI */
+#define DW_OUI_WX			0x0018fc80
+
+/* dev_flag */
+#define DW_DEV_TXGBE			BIT(0)
+
 struct xpcs_id;
 
 struct dw_xpcs {
 	struct mdio_device *mdiodev;
 	const struct xpcs_id *id;
 	struct phylink_pcs pcs;
+	int dev_flag;
 };
 
 int xpcs_get_an_mode(struct dw_xpcs *xpcs, phy_interface_t interface);