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Commit 31557f0f authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

mlxsw: Introduce Mellanox SwitchX-2 ASIC support 



Benefit from the previously introduced Mellanox Switch infrastructure and
add driver for SwitchX-2 ASIC. Note that this driver is very simple now.
It implements bare minimum for getting device to work on slow-path.
Fast-path offload functionality is going to be added soon.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarElad Raz <eladr@mellanox.com>
Reviewed-by: default avatarScott Feldman <sfeldma@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4ec14b76

drivers/net/ethernet/mellanox/mlxsw/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -19,3 +19,14 @@ config MLXSW_PCI 


	  To compile this driver as a module, choose M here: the

	  module will be called mlxsw_pci.



config MLXSW_SWITCHX2

	tristate "Mellanox Technologies SwitchX-2 support"

	depends on MLXSW_CORE && NET_SWITCHDEV

	default m

	---help---

	  This driver supports Mellanox Technologies SwitchX-2 Ethernet

	  Switch ASICs.



	  To compile this driver as a module, choose M here: the

	  module will be called mlxsw_switchx2.

drivers/net/ethernet/mellanox/mlxsw/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -2,3 +2,5 @@ obj-$(CONFIG_MLXSW_CORE) += mlxsw_core.o 
mlxsw_core-objs			:= core.o

obj-$(CONFIG_MLXSW_PCI)		+= mlxsw_pci.o

mlxsw_pci-objs			:= pci.o

obj-$(CONFIG_MLXSW_SWITCHX2)	+= mlxsw_switchx2.o

mlxsw_switchx2-objs		:= switchx2.o

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

+2 −0
Original line number Diff line number Diff line
@@ -53,6 +53,8 @@ 
#define MODULE_MLXSW_DRIVER_ALIAS(kind)	\

	MODULE_ALIAS(MLXSW_MODULE_ALIAS_PREFIX kind)



#define MLXSW_DEVICE_KIND_SWITCHX2 "switchx2"



struct mlxsw_core;

struct mlxsw_driver;

struct mlxsw_bus;

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

+3 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ 
static const char mlxsw_pci_driver_name[] = "mlxsw_pci";



static const struct pci_device_id mlxsw_pci_id_table[] = {

	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHX2), 0},

	{0, }

};
@@ -63,6 +64,8 @@ static struct dentry *mlxsw_pci_dbg_root; 
static const char *mlxsw_pci_device_kind_get(const struct pci_device_id *id)

{

	switch (id->device) {

	case PCI_DEVICE_ID_MELLANOX_SWITCHX2:

		return MLXSW_DEVICE_KIND_SWITCHX2;

	default:

		BUG();

	}

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

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 


#include "item.h"



#define PCI_DEVICE_ID_MELLANOX_SWITCHX2	0xc738

#define MLXSW_PCI_BAR0_SIZE		(1024 * 1024) /* 1MB */

#define MLXSW_PCI_PAGE_SIZE		4096