net: add Hisilicon Network Subsystem DSAF support

DSAF, namely Distributed System Area Fabric, is one of the HNS
acceleration engine implementation. This patch add DSAF driver to the
system.

hns_ae_adapt: the adaptor for registering the driver to HNAE framework
hns_dsaf_mac: MAC cover interface for GE and XGE
hns_dsaf_gmac: GE (10/100/1000G Ethernet) MAC function
hns_dsaf_xgmac: XGE (10000+G Ethernet) MAC function
hns_dsaf_main: the platform device driver for the whole hardware
hns_dsaf_misc: some misc helper function, such as LED support
hns_dsaf_ppe: packet process engine function
hns_dsaf_rcb: ring buffer function

Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: Kenneth Lee <liguozhu@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/Kconfig

@@ -46,4 +46,13 @@ config HNS
 	  is needed by any driver which provides HNS acceleration engine or make
 	  use of the engine
 
+config HNS_DSAF
+	tristate "Hisilicon HNS DSAF device Support"
+	select HNS
+	select HNS_MDIO
+	---help---
+	  This selects the DSAF (Distributed System Area Frabric) network
+	  acceleration engine support. The engine is used in Hisilicon hip05,
+	  Hi1610 and further ICT SoC
+
 endif # NET_VENDOR_HISILICON

drivers/net/ethernet/hisilicon/hns/Makefile

@@ -3,3 +3,7 @@
 #
 
 obj-$(CONFIG_HNS) += hnae.o
+
+obj-$(CONFIG_HNS_DSAF) += hns_dsaf.o
+hns_dsaf-objs = hns_ae_adapt.o hns_dsaf_gmac.o hns_dsaf_mac.o hns_dsaf_misc.o \
+	hns_dsaf_main.o hns_dsaf_ppe.o hns_dsaf_rcb.o hns_dsaf_xgmac.o