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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: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Elad Raz <eladr@mellanox.com> Reviewed-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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8 changed files with 1655 additions and 0 deletions
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@ -19,3 +19,14 @@ config MLXSW_PCI
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_pci.
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config MLXSW_SWITCHX2
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tristate "Mellanox Technologies SwitchX-2 support"
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depends on MLXSW_CORE && NET_SWITCHDEV
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default m
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---help---
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This driver supports Mellanox Technologies SwitchX-2 Ethernet
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Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_switchx2.
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@ -2,3 +2,5 @@ obj-$(CONFIG_MLXSW_CORE) += mlxsw_core.o
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mlxsw_core-objs := core.o
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obj-$(CONFIG_MLXSW_PCI) += mlxsw_pci.o
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mlxsw_pci-objs := pci.o
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obj-$(CONFIG_MLXSW_SWITCHX2) += mlxsw_switchx2.o
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mlxsw_switchx2-objs := switchx2.o
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@ -53,6 +53,8 @@
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#define MODULE_MLXSW_DRIVER_ALIAS(kind) \
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MODULE_ALIAS(MLXSW_MODULE_ALIAS_PREFIX kind)
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#define MLXSW_DEVICE_KIND_SWITCHX2 "switchx2"
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struct mlxsw_core;
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struct mlxsw_driver;
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struct mlxsw_bus;
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@ -55,6 +55,7 @@
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static const char mlxsw_pci_driver_name[] = "mlxsw_pci";
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static const struct pci_device_id mlxsw_pci_id_table[] = {
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{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHX2), 0},
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{0, }
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};
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@ -63,6 +64,8 @@ static struct dentry *mlxsw_pci_dbg_root;
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static const char *mlxsw_pci_device_kind_get(const struct pci_device_id *id)
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{
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switch (id->device) {
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case PCI_DEVICE_ID_MELLANOX_SWITCHX2:
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return MLXSW_DEVICE_KIND_SWITCHX2;
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default:
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BUG();
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}
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@ -39,6 +39,7 @@
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#include "item.h"
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#define PCI_DEVICE_ID_MELLANOX_SWITCHX2 0xc738
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#define MLXSW_PCI_BAR0_SIZE (1024 * 1024) /* 1MB */
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#define MLXSW_PCI_PAGE_SIZE 4096
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@ -51,6 +51,10 @@
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#define MLXSW_PORT_MAX_PHY_PORTS 0x40
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#define MLXSW_PORT_MAX_PORTS MLXSW_PORT_MAX_PHY_PORTS
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#define MLXSW_PORT_DEVID_BITS_OFFSET 10
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#define MLXSW_PORT_PHY_BITS_OFFSET 4
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#define MLXSW_PORT_PHY_BITS_MASK (MLXSW_PORT_MAX_PHY_PORTS - 1)
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#define MLXSW_PORT_CPU_PORT 0x0
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#define MLXSW_PORT_DONT_CARE (MLXSW_PORT_MAX_PORTS)
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1552
drivers/net/ethernet/mellanox/mlxsw/switchx2.c
Normal file
1552
drivers/net/ethernet/mellanox/mlxsw/switchx2.c
Normal file
File diff suppressed because it is too large
Load diff
80
drivers/net/ethernet/mellanox/mlxsw/txheader.h
Normal file
80
drivers/net/ethernet/mellanox/mlxsw/txheader.h
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@ -0,0 +1,80 @@
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/*
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* drivers/net/ethernet/mellanox/mlxsw/txheader.h
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* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
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* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MLXSW_TXHEADER_H
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#define _MLXSW_TXHEADER_H
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#define MLXSW_TXHDR_LEN 0x10
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#define MLXSW_TXHDR_VERSION_0 0
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enum {
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MLXSW_TXHDR_ETH_CTL,
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MLXSW_TXHDR_ETH_DATA,
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};
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#define MLXSW_TXHDR_PROTO_ETH 1
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enum {
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MLXSW_TXHDR_ETCLASS_0,
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MLXSW_TXHDR_ETCLASS_1,
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MLXSW_TXHDR_ETCLASS_2,
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MLXSW_TXHDR_ETCLASS_3,
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MLXSW_TXHDR_ETCLASS_4,
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MLXSW_TXHDR_ETCLASS_5,
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MLXSW_TXHDR_ETCLASS_6,
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MLXSW_TXHDR_ETCLASS_7,
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};
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enum {
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MLXSW_TXHDR_RDQ_OTHER,
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MLXSW_TXHDR_RDQ_EMAD = 0x1f,
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};
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#define MLXSW_TXHDR_CTCLASS3 0
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#define MLXSW_TXHDR_CPU_SIG 0
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#define MLXSW_TXHDR_SIG 0xE0E0
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#define MLXSW_TXHDR_STCLASS_NONE 0
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enum {
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MLXSW_TXHDR_NOT_EMAD,
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MLXSW_TXHDR_EMAD,
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};
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enum {
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MLXSW_TXHDR_TYPE_DATA,
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MLXSW_TXHDR_TYPE_CONTROL = 6,
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};
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#endif
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