mlxsw: switchib: Introduce SwitchIB and SwitchIB silicon driver

SwitchIB and SwitchIB-2 are Infiniband switches with up to 36 ports. This
driver initialize the hardware and Firmware which implements the IB
management and connection with the SM.
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/Kconfig

@@ -29,6 +29,17 @@ config MLXSW_PCI
 	  To compile this driver as a module, choose M here: the
 	  module will be called mlxsw_pci.
 
+config MLXSW_SWITCHIB
+	tristate "Mellanox Technologies SwitchIB and SwitchIB-2 support"
+	depends on MLXSW_CORE && NET_SWITCHDEV
+	default m
+	---help---
+	  This driver supports Mellanox Technologies SwitchIB and SwitchIB-2
+	  Infiniband Switch ASICs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mlxsw_switchib.
+
 config MLXSW_SWITCHX2
 	tristate "Mellanox Technologies SwitchX-2 support"
 	depends on MLXSW_CORE && MLXSW_PCI && NET_SWITCHDEV

drivers/net/ethernet/mellanox/mlxsw/Makefile

@@ -3,6 +3,8 @@ mlxsw_core-objs			:= core.o
 mlxsw_core-$(CONFIG_MLXSW_CORE_HWMON) += core_hwmon.o
 obj-$(CONFIG_MLXSW_PCI)		+= mlxsw_pci.o
 mlxsw_pci-objs			:= pci.o
+obj-$(CONFIG_MLXSW_SWITCHIB)	+= mlxsw_switchib.o
+mlxsw_switchib-objs		:= switchib.o
 obj-$(CONFIG_MLXSW_SWITCHX2)	+= mlxsw_switchx2.o
 mlxsw_switchx2-objs		:= switchx2.o
 obj-$(CONFIG_MLXSW_SPECTRUM)	+= mlxsw_spectrum.o

drivers/net/ethernet/mellanox/mlxsw/pci.h

@@ -39,6 +39,8 @@
 
 #define PCI_DEVICE_ID_MELLANOX_SWITCHX2		0xc738
 #define PCI_DEVICE_ID_MELLANOX_SPECTRUM		0xcb84
+#define PCI_DEVICE_ID_MELLANOX_SWITCHIB		0xcb20
+#define PCI_DEVICE_ID_MELLANOX_SWITCHIB2	0xcf08
 
 #if IS_ENABLED(CONFIG_MLXSW_PCI)
 

drivers/net/ethernet/mellanox/mlxsw/port.h

@@ -52,6 +52,9 @@
 #define MLXSW_PORT_MAX_PHY_PORTS	0x40
 #define MLXSW_PORT_MAX_PORTS		(MLXSW_PORT_MAX_PHY_PORTS + 1)
 
+#define MLXSW_PORT_MAX_IB_PHY_PORTS	36
+#define MLXSW_PORT_MAX_IB_PORTS		(MLXSW_PORT_MAX_IB_PHY_PORTS + 1)
+
 #define MLXSW_PORT_DEVID_BITS_OFFSET	10
 #define MLXSW_PORT_PHY_BITS_OFFSET	4
 #define MLXSW_PORT_PHY_BITS_MASK	(MLXSW_PORT_MAX_PHY_PORTS - 1)