net: dwc-xlgmac: Initial driver for DesignWare Enterprise Ethernet

Synopsys provides a new DesignWare Core Enterprise Ethernet MAC
IP (DWC-XLGMAC) for Ethernet designs. It is compliant with the
IEEE 802.3-2012 specifications, including IEEE 802.3ba and
consortium specifications.

This patch provides the initial 25G/40G/50G/100G Ethernet driver
for Synopsys XLGMAC IP Prototyping Kit.

Signed-off-by: Jie Deng <jiedeng@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/synopsys/Kconfig

@@ -0,0 +1,41 @@
+#
+# Synopsys network device configuration
+#
+
+config NET_VENDOR_SYNOPSYS
+	bool "Synopsys devices"
+	default y
+	---help---
+	  If you have a network (Ethernet) device belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Synopsys devices. If you say Y, you will be asked
+	  for your specific device in the following questions.
+
+if NET_VENDOR_SYNOPSYS
+
+config DWC_XLGMAC
+	tristate "Synopsys DWC Enterprise Ethernet (XLGMAC) driver support"
+	depends on HAS_IOMEM && HAS_DMA
+	select BITREVERSE
+	select CRC32
+	---help---
+	  This driver supports the Synopsys DesignWare Cores Enterprise
+	  Ethernet (dwc-xlgmac).
+
+if DWC_XLGMAC
+
+config DWC_XLGMAC_PCI
+	tristate "XLGMAC PCI bus support"
+	depends on DWC_XLGMAC && PCI
+	---help---
+	  This selects the pci bus support for the dwc-xlgmac driver.
+	  This driver was tested on Synopsys XLGMAC IP Prototyping Kit.
+
+	  If you have a controller with this interface, say Y or M here.
+	  If unsure, say N.
+
+endif # DWC_XLGMAC
+
+endif # NET_VENDOR_SYNOPSYS