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Merge branch 'mlxsw-IB'

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Jiri Pirko says:

====================
mlxsw: Add Infiniband support for Mellanox switches

This patchset adds basic Infiniband support for SwitchX-2, Switch-IB
and Switch-IB-2 ASIC drivers.

SwitchX-2 ASIC is VPI capable, which means each port can be either
Ethernet or Infiniband. When the port is configured as Infiniband,
the Subnet Management Agent (SMA) is managed by the SwitchX-2 firmware
and not by the host. Port configuration, MTU and more are configured
remotely by the Subnet Manager (SM).

Usage:
        $ devlink port show
        pci/0000:03:00.0/1: type eth netdev eth0
        pci/0000:03:00.0/3: type eth netdev eth1
        pci/0000:03:00.0/5: type eth netdev eth2
        pci/0000:03:00.0/6: type eth netdev eth3
        pci/0000:03:00.0/8: type eth netdev eth4

        $ devlink port set pci/0000:03:00.0/1 type ib

        $ devlink port show
        pci/0000:03:00.0/1: type ib

Switch-IB (FDR) and Switch-IB-2 (EDR 100Gbs) ASICs are Infiniband-only
switches. The support provided in the mlxsw_switchib.ko driver is port
initialization only. The firmware running in the Silicon implements
the SMA.

Please note that this patchset does only very basic port initialization.
ib_device or RDMA implementations are not part of this patchset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-10-30 16:50:20 -04:00
commit 2701c3b39d
13 changed files with 1258 additions and 137 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/ethernet/mellanox/mlxsw/Kconfig
View File

@ -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

2
drivers/net/ethernet/mellanox/mlxsw/Makefile
View File

@ -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

123
drivers/net/ethernet/mellanox/mlxsw/core.c
View File

@ -90,6 +90,23 @@ struct mlxsw_core_pcpu_stats {
u32 port_rx_invalid;
};
struct mlxsw_core_port {
struct devlink_port devlink_port;
void *port_driver_priv;
u8 local_port;
};
void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
{
return mlxsw_core_port->port_driver_priv;
}
EXPORT_SYMBOL(mlxsw_core_port_driver_priv);
static bool mlxsw_core_port_check(struct mlxsw_core_port *mlxsw_core_port)
{
return mlxsw_core_port->port_driver_priv != NULL;
}
struct mlxsw_core {
struct mlxsw_driver *driver;
const struct mlxsw_bus *bus;
@ -114,6 +131,7 @@ struct mlxsw_core {
} lag;
struct mlxsw_res res;
struct mlxsw_hwmon *hwmon;
struct mlxsw_core_port ports[MLXSW_PORT_MAX_PORTS];
unsigned long driver_priv[0];
/* driver_priv has to be always the last item */
};
@ -920,6 +938,21 @@ static void *__dl_port(struct devlink_port *devlink_port)
return container_of(devlink_port, struct mlxsw_core_port, devlink_port);
}
static int mlxsw_devlink_port_type_set(struct devlink_port *devlink_port,
enum devlink_port_type port_type)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->port_type_set)
return -EOPNOTSUPP;
return mlxsw_driver->port_type_set(mlxsw_core,
mlxsw_core_port->local_port,
port_type);
}
static int mlxsw_devlink_sb_port_pool_get(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
u32 *p_threshold)
@ -928,7 +961,8 @@ static int mlxsw_devlink_sb_port_pool_get(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_port_pool_get)
if (!mlxsw_driver->sb_port_pool_get ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_port_pool_get(mlxsw_core_port, sb_index,
pool_index, p_threshold);
@ -942,7 +976,8 @@ static int mlxsw_devlink_sb_port_pool_set(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_port_pool_set)
if (!mlxsw_driver->sb_port_pool_set ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_port_pool_set(mlxsw_core_port, sb_index,
pool_index, threshold);
@ -958,7 +993,8 @@ mlxsw_devlink_sb_tc_pool_bind_get(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_tc_pool_bind_get)
if (!mlxsw_driver->sb_tc_pool_bind_get ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_tc_pool_bind_get(mlxsw_core_port, sb_index,
tc_index, pool_type,
@ -975,7 +1011,8 @@ mlxsw_devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_tc_pool_bind_set)
if (!mlxsw_driver->sb_tc_pool_bind_set ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_tc_pool_bind_set(mlxsw_core_port, sb_index,
tc_index, pool_type,
@ -1013,7 +1050,8 @@ mlxsw_devlink_sb_occ_port_pool_get(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_occ_port_pool_get)
if (!mlxsw_driver->sb_occ_port_pool_get ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_occ_port_pool_get(mlxsw_core_port, sb_index,
pool_index, p_cur, p_max);
@ -1029,7 +1067,8 @@ mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port,
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
if (!mlxsw_driver->sb_occ_tc_port_bind_get)
if (!mlxsw_driver->sb_occ_tc_port_bind_get ||
!mlxsw_core_port_check(mlxsw_core_port))
return -EOPNOTSUPP;
return mlxsw_driver->sb_occ_tc_port_bind_get(mlxsw_core_port,
sb_index, tc_index,
@ -1037,6 +1076,7 @@ mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port,
}
static const struct devlink_ops mlxsw_devlink_ops = {
.port_type_set = mlxsw_devlink_port_type_set,
.port_split = mlxsw_devlink_port_split,
.port_unsplit = mlxsw_devlink_port_unsplit,
.sb_pool_get = mlxsw_devlink_sb_pool_get,
@ -1656,28 +1696,83 @@ u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
}
EXPORT_SYMBOL(mlxsw_core_res_get);
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core,
struct mlxsw_core_port *mlxsw_core_port, u8 local_port,
struct net_device *dev, bool split, u32 split_group)
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port)
{
struct devlink *devlink = priv_to_devlink(mlxsw_core);
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
int err;
if (split)
devlink_port_split_set(devlink_port, split_group);
devlink_port_type_eth_set(devlink_port, dev);
return devlink_port_register(devlink, devlink_port, local_port);
mlxsw_core_port->local_port = local_port;
err = devlink_port_register(devlink, devlink_port, local_port);
if (err)
memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
return err;
}
EXPORT_SYMBOL(mlxsw_core_port_init);
void mlxsw_core_port_fini(struct mlxsw_core_port *mlxsw_core_port)
void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
{
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
devlink_port_unregister(devlink_port);
memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
}
EXPORT_SYMBOL(mlxsw_core_port_fini);
void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv, struct net_device *dev,
bool split, u32 split_group)
{
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
mlxsw_core_port->port_driver_priv = port_driver_priv;
if (split)
devlink_port_split_set(devlink_port, split_group);
devlink_port_type_eth_set(devlink_port, dev);
}
EXPORT_SYMBOL(mlxsw_core_port_eth_set);
void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv)
{
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
mlxsw_core_port->port_driver_priv = port_driver_priv;
devlink_port_type_ib_set(devlink_port, NULL);
}
EXPORT_SYMBOL(mlxsw_core_port_ib_set);
void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv)
{
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
mlxsw_core_port->port_driver_priv = port_driver_priv;
devlink_port_type_clear(devlink_port);
}
EXPORT_SYMBOL(mlxsw_core_port_clear);
enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
u8 local_port)
{
struct mlxsw_core_port *mlxsw_core_port =
&mlxsw_core->ports[local_port];
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
return devlink_port->type;
}
EXPORT_SYMBOL(mlxsw_core_port_type_get);
static void mlxsw_core_buf_dump_dbg(struct mlxsw_core *mlxsw_core,
const char *buf, size_t size)
{

32
drivers/net/ethernet/mellanox/mlxsw/core.h
View File

@ -52,6 +52,7 @@
#include "resources.h"
struct mlxsw_core;
struct mlxsw_core_port;
struct mlxsw_driver;
struct mlxsw_bus;
struct mlxsw_bus_info;
@ -141,23 +142,18 @@ u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
u16 lag_id, u8 local_port);
struct mlxsw_core_port {
struct devlink_port devlink_port;
};
static inline void *
mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
{
/* mlxsw_core_port is ensured to always be the first field in driver
* port structure.
*/
return mlxsw_core_port;
}
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core,
struct mlxsw_core_port *mlxsw_core_port, u8 local_port,
struct net_device *dev, bool split, u32 split_group);
void mlxsw_core_port_fini(struct mlxsw_core_port *mlxsw_core_port);
void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port);
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port);
void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port);
void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv, struct net_device *dev,
bool split, u32 split_group);
void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv);
void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
void *port_driver_priv);
enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
u8 local_port);
int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
@ -218,6 +214,8 @@ struct mlxsw_driver {
int (*init)(struct mlxsw_core *mlxsw_core,
const struct mlxsw_bus_info *mlxsw_bus_info);
void (*fini)(struct mlxsw_core *mlxsw_core);
int (*port_type_set)(struct mlxsw_core *mlxsw_core, u8 local_port,
enum devlink_port_type new_type);
int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
unsigned int count);
int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port);

4
drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c
View File

@ -262,7 +262,7 @@ static void mlxsw_hwmon_attr_add(struct mlxsw_hwmon *mlxsw_hwmon,
static int mlxsw_hwmon_temp_init(struct mlxsw_hwmon *mlxsw_hwmon)
{
char mtcap_pl[MLXSW_REG_MTCAP_LEN];
char mtcap_pl[MLXSW_REG_MTCAP_LEN] = {0};
char mtmp_pl[MLXSW_REG_MTMP_LEN];
u8 sensor_count;
int i;
@ -295,7 +295,7 @@ static int mlxsw_hwmon_temp_init(struct mlxsw_hwmon *mlxsw_hwmon)
static int mlxsw_hwmon_fans_init(struct mlxsw_hwmon *mlxsw_hwmon)
{
char mfcr_pl[MLXSW_REG_MFCR_LEN];
char mfcr_pl[MLXSW_REG_MFCR_LEN] = {0};
enum mlxsw_reg_mfcr_pwm_frequency freq;
unsigned int type_index;
unsigned int num;

39
drivers/net/ethernet/mellanox/mlxsw/ib.h Normal file
View File

@ -0,0 +1,39 @@
/*
* drivers/net/ethernet/mellanox/mlxsw/ib.h
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Elad Raz <eladr@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MLXSW_IB_H
#define _MLXSW_IB_H
#define MLXSW_IB_DEFAULT_MTU 4096
#endif /* _MLXSW_IB_H */

2
drivers/net/ethernet/mellanox/mlxsw/pci.h
View File

@ -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)

4
drivers/net/ethernet/mellanox/mlxsw/port.h
View File

@ -44,6 +44,7 @@
#define MLXSW_PORT_SWID_DISABLED_PORT 255
#define MLXSW_PORT_SWID_ALL_SWIDS 254
#define MLXSW_PORT_SWID_TYPE_IB 1
#define MLXSW_PORT_SWID_TYPE_ETH 2
#define MLXSW_PORT_MID 0xd000
@ -51,6 +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)

104
drivers/net/ethernet/mellanox/mlxsw/reg.h
View File

@ -2054,6 +2054,7 @@ MLXSW_REG_DEFINE(ptys, MLXSW_REG_PTYS_ID, MLXSW_REG_PTYS_LEN);
*/
MLXSW_ITEM32(reg, ptys, local_port, 0x00, 16, 8);
#define MLXSW_REG_PTYS_PROTO_MASK_IB BIT(0)
#define MLXSW_REG_PTYS_PROTO_MASK_ETH BIT(2)
/* reg_ptys_proto_mask
@ -2112,18 +2113,61 @@ MLXSW_ITEM32(reg, ptys, an_status, 0x04, 28, 4);
*/
MLXSW_ITEM32(reg, ptys, eth_proto_cap, 0x0C, 0, 32);
/* reg_ptys_ib_link_width_cap
* IB port supported widths.
* Access: RO
*/
MLXSW_ITEM32(reg, ptys, ib_link_width_cap, 0x10, 16, 16);
#define MLXSW_REG_PTYS_IB_SPEED_SDR BIT(0)
#define MLXSW_REG_PTYS_IB_SPEED_DDR BIT(1)
#define MLXSW_REG_PTYS_IB_SPEED_QDR BIT(2)
#define MLXSW_REG_PTYS_IB_SPEED_FDR10 BIT(3)
#define MLXSW_REG_PTYS_IB_SPEED_FDR BIT(4)
#define MLXSW_REG_PTYS_IB_SPEED_EDR BIT(5)
/* reg_ptys_ib_proto_cap
* IB port supported speeds and protocols.
* Access: RO
*/
MLXSW_ITEM32(reg, ptys, ib_proto_cap, 0x10, 0, 16);
/* reg_ptys_eth_proto_admin
* Speed and protocol to set port to.
* Access: RW
*/
MLXSW_ITEM32(reg, ptys, eth_proto_admin, 0x18, 0, 32);
/* reg_ptys_ib_link_width_admin
* IB width to set port to.
* Access: RW
*/
MLXSW_ITEM32(reg, ptys, ib_link_width_admin, 0x1C, 16, 16);
/* reg_ptys_ib_proto_admin
* IB speeds and protocols to set port to.
* Access: RW
*/
MLXSW_ITEM32(reg, ptys, ib_proto_admin, 0x1C, 0, 16);
/* reg_ptys_eth_proto_oper
* The current speed and protocol configured for the port.
* Access: RO
*/
MLXSW_ITEM32(reg, ptys, eth_proto_oper, 0x24, 0, 32);
/* reg_ptys_ib_link_width_oper
* The current IB width to set port to.
* Access: RO
*/
MLXSW_ITEM32(reg, ptys, ib_link_width_oper, 0x28, 16, 16);
/* reg_ptys_ib_proto_oper
* The current IB speed and protocol.
* Access: RO
*/
MLXSW_ITEM32(reg, ptys, ib_proto_oper, 0x28, 0, 16);
/* reg_ptys_eth_proto_lp_advertise
* The protocols that were advertised by the link partner during
* autonegotiation.
@ -2131,8 +2175,8 @@ MLXSW_ITEM32(reg, ptys, eth_proto_oper, 0x24, 0, 32);
*/
MLXSW_ITEM32(reg, ptys, eth_proto_lp_advertise, 0x30, 0, 32);
static inline void mlxsw_reg_ptys_pack(char *payload, u8 local_port,
u32 proto_admin)
static inline void mlxsw_reg_ptys_eth_pack(char *payload, u8 local_port,
u32 proto_admin)
{
MLXSW_REG_ZERO(ptys, payload);
mlxsw_reg_ptys_local_port_set(payload, local_port);
@ -2140,9 +2184,10 @@ static inline void mlxsw_reg_ptys_pack(char *payload, u8 local_port,
mlxsw_reg_ptys_eth_proto_admin_set(payload, proto_admin);
}
static inline void mlxsw_reg_ptys_unpack(char *payload, u32 *p_eth_proto_cap,
u32 *p_eth_proto_adm,
u32 *p_eth_proto_oper)
static inline void mlxsw_reg_ptys_eth_unpack(char *payload,
u32 *p_eth_proto_cap,
u32 *p_eth_proto_adm,
u32 *p_eth_proto_oper)
{
if (p_eth_proto_cap)
*p_eth_proto_cap = mlxsw_reg_ptys_eth_proto_cap_get(payload);
@ -2152,6 +2197,33 @@ static inline void mlxsw_reg_ptys_unpack(char *payload, u32 *p_eth_proto_cap,
*p_eth_proto_oper = mlxsw_reg_ptys_eth_proto_oper_get(payload);
}
static inline void mlxsw_reg_ptys_ib_pack(char *payload, u8 local_port,
u16 proto_admin, u16 link_width)
{
MLXSW_REG_ZERO(ptys, payload);
mlxsw_reg_ptys_local_port_set(payload, local_port);
mlxsw_reg_ptys_proto_mask_set(payload, MLXSW_REG_PTYS_PROTO_MASK_IB);
mlxsw_reg_ptys_ib_proto_admin_set(payload, proto_admin);
mlxsw_reg_ptys_ib_link_width_admin_set(payload, link_width);
}
static inline void mlxsw_reg_ptys_ib_unpack(char *payload, u16 *p_ib_proto_cap,
u16 *p_ib_link_width_cap,
u16 *p_ib_proto_oper,
u16 *p_ib_link_width_oper)
{
if (p_ib_proto_cap)
*p_ib_proto_cap = mlxsw_reg_ptys_ib_proto_cap_get(payload);
if (p_ib_link_width_cap)
*p_ib_link_width_cap =
mlxsw_reg_ptys_ib_link_width_cap_get(payload);
if (p_ib_proto_oper)
*p_ib_proto_oper = mlxsw_reg_ptys_ib_proto_oper_get(payload);
if (p_ib_link_width_oper)
*p_ib_link_width_oper =
mlxsw_reg_ptys_ib_link_width_oper_get(payload);
}
/* PPAD - Port Physical Address Register
* -------------------------------------
* The PPAD register configures the per port physical MAC address.
@ -2676,6 +2748,27 @@ static inline void mlxsw_reg_ppcnt_pack(char *payload, u8 local_port,
mlxsw_reg_ppcnt_prio_tc_set(payload, prio_tc);
}
/* PLIB - Port Local to InfiniBand Port
* ------------------------------------
* The PLIB register performs mapping from Local Port into InfiniBand Port.
*/
#define MLXSW_REG_PLIB_ID 0x500A
#define MLXSW_REG_PLIB_LEN 0x10
MLXSW_REG_DEFINE(plib, MLXSW_REG_PLIB_ID, MLXSW_REG_PLIB_LEN);
/* reg_plib_local_port
* Local port number.
* Access: Index
*/
MLXSW_ITEM32(reg, plib, local_port, 0x00, 16, 8);
/* reg_plib_ib_port
* InfiniBand port remapping for local_port.
* Access: RW
*/
MLXSW_ITEM32(reg, plib, ib_port, 0x00, 0, 8);
/* PPTB - Port Prio To Buffer Register
* -----------------------------------
* Configures the switch priority to buffer table.
@ -5116,6 +5209,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(paos),
MLXSW_REG(pfcc),
MLXSW_REG(ppcnt),
MLXSW_REG(plib),
MLXSW_REG(pptb),
MLXSW_REG(pbmc),
MLXSW_REG(pspa),

95
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -158,7 +158,7 @@ static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
char spad_pl[MLXSW_REG_SPAD_LEN];
char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
int err;
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
@ -2003,12 +2003,12 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
int err;
autoneg = mlxsw_sp_port->link.autoneg;
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin,
&eth_proto_oper);
mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin,
&eth_proto_oper);
mlxsw_sp_port_get_link_supported(eth_proto_cap, cmd);
@ -2037,11 +2037,11 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev,
bool autoneg;
int err;
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);
mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);
autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
eth_proto_new = autoneg ?
@ -2054,7 +2054,8 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev,
return -EINVAL;
}
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port,
eth_proto_new);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
@ -2092,8 +2093,8 @@ mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
u32 eth_proto_admin;
eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
eth_proto_admin);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port,
eth_proto_admin);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}
@ -2211,8 +2212,8 @@ static int mlxsw_sp_port_pvid_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_port)
return mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
}
static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
bool split, u8 module, u8 width, u8 lane)
static int __mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
bool split, u8 module, u8 width, u8 lane)
{
struct mlxsw_sp_port *mlxsw_sp_port;
struct net_device *dev;
@ -2357,20 +2358,12 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
goto err_register_netdev;
}
err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
mlxsw_sp_port->local_port, dev,
mlxsw_sp_port->split, module);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
mlxsw_sp_port->local_port);
goto err_core_port_init;
}
mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port,
mlxsw_sp_port, dev, mlxsw_sp_port->split,
module);
mlxsw_core_schedule_dw(&mlxsw_sp_port->hw_stats.update_dw, 0);
return 0;
err_core_port_init:
unregister_netdev(dev);
err_register_netdev:
mlxsw_sp->ports[local_port] = NULL;
mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
@ -2399,14 +2392,34 @@ err_port_active_vlans_alloc:
return err;
}
static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
bool split, u8 module, u8 width, u8 lane)
{
int err;
err = mlxsw_core_port_init(mlxsw_sp->core, local_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
local_port);
return err;
}
err = __mlxsw_sp_port_create(mlxsw_sp, local_port, false,
module, width, lane);
if (err)
goto err_port_create;
return 0;
err_port_create:
mlxsw_core_port_fini(mlxsw_sp->core, local_port);
return err;
}
static void __mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
if (!mlxsw_sp_port)
return;
cancel_delayed_work_sync(&mlxsw_sp_port->hw_stats.update_dw);
mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
mlxsw_sp->ports[local_port] = NULL;
mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
@ -2422,12 +2435,24 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
free_netdev(mlxsw_sp_port->dev);
}
static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
__mlxsw_sp_port_remove(mlxsw_sp, local_port);
mlxsw_core_port_fini(mlxsw_sp->core, local_port);
}
static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
return mlxsw_sp->ports[local_port] != NULL;
}
static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
{
int i;
for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
mlxsw_sp_port_remove(mlxsw_sp, i);
if (mlxsw_sp_port_created(mlxsw_sp, i))
mlxsw_sp_port_remove(mlxsw_sp, i);
kfree(mlxsw_sp->ports);
}
@ -2451,8 +2476,8 @@ static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
if (!width)
continue;
mlxsw_sp->port_to_module[i] = module;
err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
lane);
err = mlxsw_sp_port_create(mlxsw_sp, i, false,
module, width, lane);
if (err)
goto err_port_create;
}
@ -2461,7 +2486,8 @@ static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
err_port_create:
err_port_module_info_get:
for (i--; i >= 1; i--)
mlxsw_sp_port_remove(mlxsw_sp, i);
if (mlxsw_sp_port_created(mlxsw_sp, i))
mlxsw_sp_port_remove(mlxsw_sp, i);
kfree(mlxsw_sp->ports);
return err;
}
@ -2503,7 +2529,8 @@ static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
err_port_create:
for (i--; i >= 0; i--)
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
i = count;
err_port_swid_set:
for (i--; i >= 0; i--)
@ -2593,7 +2620,8 @@ static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
}
for (i = 0; i < count; i++)
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
if (err) {
@ -2638,7 +2666,8 @@ static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
base_port = base_port + 2;
for (i = 0; i < count; i++)
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);

1
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -316,7 +316,6 @@ struct mlxsw_sp_port_pcpu_stats {
};
struct mlxsw_sp_port {
struct mlxsw_core_port core_port; /* must be first */
struct net_device *dev;
struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats;
struct mlxsw_sp *mlxsw_sp;

598
drivers/net/ethernet/mellanox/mlxsw/switchib.c Normal file
View File

@ -0,0 +1,598 @@
/*
* drivers/net/ethernet/mellanox/mlxsw/switchib.c
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Elad Raz <eladr@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <net/switchdev.h>
#include <generated/utsrelease.h>
#include "pci.h"
#include "core.h"
#include "reg.h"
#include "port.h"
#include "trap.h"
#include "txheader.h"
#include "ib.h"
static const char mlxsw_sib_driver_name[] = "mlxsw_switchib";
static const char mlxsw_sib2_driver_name[] = "mlxsw_switchib2";
struct mlxsw_sib_port;
struct mlxsw_sib {
struct mlxsw_sib_port **ports;
struct mlxsw_core *core;
const struct mlxsw_bus_info *bus_info;
};
struct mlxsw_sib_port {
struct mlxsw_sib *mlxsw_sib;
u8 local_port;
struct {
u8 module;
} mapping;
};
/* tx_v1_hdr_version
* Tx header version.
* Must be set to 1.
*/
MLXSW_ITEM32(tx_v1, hdr, version, 0x00, 28, 4);
/* tx_v1_hdr_ctl
* Packet control type.
* 0 - Ethernet control (e.g. EMADs, LACP)
* 1 - Ethernet data
*/
MLXSW_ITEM32(tx_v1, hdr, ctl, 0x00, 26, 2);
/* tx_v1_hdr_proto
* Packet protocol type. Must be set to 1 (Ethernet).
*/
MLXSW_ITEM32(tx_v1, hdr, proto, 0x00, 21, 3);
/* tx_v1_hdr_swid
* Switch partition ID. Must be set to 0.
*/
MLXSW_ITEM32(tx_v1, hdr, swid, 0x00, 12, 3);
/* tx_v1_hdr_control_tclass
* Indicates if the packet should use the control TClass and not one
* of the data TClasses.
*/
MLXSW_ITEM32(tx_v1, hdr, control_tclass, 0x00, 6, 1);
/* tx_v1_hdr_port_mid
* Destination local port for unicast packets.
* Destination multicast ID for multicast packets.
*
* Control packets are directed to a specific egress port, while data
* packets are transmitted through the CPU port (0) into the switch partition,
* where forwarding rules are applied.
*/
MLXSW_ITEM32(tx_v1, hdr, port_mid, 0x04, 16, 16);
/* tx_v1_hdr_type
* 0 - Data packets
* 6 - Control packets
*/
MLXSW_ITEM32(tx_v1, hdr, type, 0x0C, 0, 4);
static void
mlxsw_sib_tx_v1_hdr_construct(struct sk_buff *skb,
const struct mlxsw_tx_info *tx_info)
{
char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
memset(txhdr, 0, MLXSW_TXHDR_LEN);
mlxsw_tx_v1_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
mlxsw_tx_v1_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
mlxsw_tx_v1_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
mlxsw_tx_v1_hdr_swid_set(txhdr, 0);
mlxsw_tx_v1_hdr_control_tclass_set(txhdr, 1);
mlxsw_tx_v1_hdr_port_mid_set(txhdr, tx_info->local_port);
mlxsw_tx_v1_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
}
static int
mlxsw_sib_port_admin_status_set(struct mlxsw_sib_port *mlxsw_sib_port,
bool is_up)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib;
char paos_pl[MLXSW_REG_PAOS_LEN];
mlxsw_reg_paos_pack(paos_pl, mlxsw_sib_port->local_port,
is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
MLXSW_PORT_ADMIN_STATUS_DOWN);
return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(paos), paos_pl);
}
static int mlxsw_sib_port_mtu_set(struct mlxsw_sib_port *mlxsw_sib_port,
u16 mtu)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib;
char pmtu_pl[MLXSW_REG_PMTU_LEN];
int max_mtu;
int err;
mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sib_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sib->core, MLXSW_REG(pmtu), pmtu_pl);
if (err)
return err;
max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
if (mtu > max_mtu)
return -EINVAL;
mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sib_port->local_port, mtu);
return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(pmtu), pmtu_pl);
}
static int mlxsw_sib_port_set(struct mlxsw_sib_port *mlxsw_sib_port, u8 port)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib;
char plib_pl[MLXSW_REG_PLIB_LEN] = {0};
int err;
mlxsw_reg_plib_local_port_set(plib_pl, mlxsw_sib_port->local_port);
mlxsw_reg_plib_ib_port_set(plib_pl, port);
err = mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(plib), plib_pl);
return err;
}
static int mlxsw_sib_port_swid_set(struct mlxsw_sib_port *mlxsw_sib_port,
u8 swid)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib;
char pspa_pl[MLXSW_REG_PSPA_LEN];
mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sib_port->local_port);
return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(pspa), pspa_pl);
}
static int mlxsw_sib_port_module_info_get(struct mlxsw_sib *mlxsw_sib,
u8 local_port, u8 *p_module,
u8 *p_width)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
int err;
mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
err = mlxsw_reg_query(mlxsw_sib->core, MLXSW_REG(pmlp), pmlp_pl);
if (err)
return err;
*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
return 0;
}
static int mlxsw_sib_port_speed_set(struct mlxsw_sib_port *mlxsw_sib_port,
u16 speed, u16 width)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib;
char ptys_pl[MLXSW_REG_PTYS_LEN];
mlxsw_reg_ptys_ib_pack(ptys_pl, mlxsw_sib_port->local_port, speed,
width);
return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(ptys), ptys_pl);
}
static bool mlxsw_sib_port_created(struct mlxsw_sib *mlxsw_sib, u8 local_port)
{
return mlxsw_sib->ports[local_port] != NULL;
}
static int __mlxsw_sib_port_create(struct mlxsw_sib *mlxsw_sib, u8 local_port,
u8 module, u8 width)
{
struct mlxsw_sib_port *mlxsw_sib_port;
int err;
mlxsw_sib_port = kzalloc(sizeof(*mlxsw_sib_port), GFP_KERNEL);
if (!mlxsw_sib_port)
return -ENOMEM;
mlxsw_sib_port->mlxsw_sib = mlxsw_sib;
mlxsw_sib_port->local_port = local_port;
mlxsw_sib_port->mapping.module = module;
err = mlxsw_sib_port_swid_set(mlxsw_sib_port, 0);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set SWID\n",
mlxsw_sib_port->local_port);
goto err_port_swid_set;
}
/* Expose the IB port number as it's front panel name */
err = mlxsw_sib_port_set(mlxsw_sib_port, module + 1);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set IB port\n",
mlxsw_sib_port->local_port);
goto err_port_ib_set;
}
/* Supports all speeds from SDR to FDR (bitmask) and support bus width
* of 1x, 2x and 4x (3 bits bitmask)
*/
err = mlxsw_sib_port_speed_set(mlxsw_sib_port,
MLXSW_REG_PTYS_IB_SPEED_EDR - 1,
BIT(3) - 1);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set speed\n",
mlxsw_sib_port->local_port);
goto err_port_speed_set;
}
/* Change to the maximum MTU the device supports, the SMA will take
* care of the active MTU
*/
err = mlxsw_sib_port_mtu_set(mlxsw_sib_port, MLXSW_IB_DEFAULT_MTU);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set MTU\n",
mlxsw_sib_port->local_port);
goto err_port_mtu_set;
}
err = mlxsw_sib_port_admin_status_set(mlxsw_sib_port, true);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to change admin state to UP\n",
mlxsw_sib_port->local_port);
goto err_port_admin_set;
}
mlxsw_core_port_ib_set(mlxsw_sib->core, mlxsw_sib_port->local_port,
mlxsw_sib_port);
mlxsw_sib->ports[local_port] = mlxsw_sib_port;
return 0;
err_port_admin_set:
err_port_mtu_set:
err_port_speed_set:
err_port_ib_set:
mlxsw_sib_port_swid_set(mlxsw_sib_port, MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
kfree(mlxsw_sib_port);
return err;
}
static int mlxsw_sib_port_create(struct mlxsw_sib *mlxsw_sib, u8 local_port,
u8 module, u8 width)
{
int err;
err = mlxsw_core_port_init(mlxsw_sib->core, local_port);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to init core port\n",
local_port);
return err;
}
err = __mlxsw_sib_port_create(mlxsw_sib, local_port, module, width);
if (err)
goto err_port_create;
return 0;
err_port_create:
mlxsw_core_port_fini(mlxsw_sib->core, local_port);
return err;
}
static void __mlxsw_sib_port_remove(struct mlxsw_sib *mlxsw_sib, u8 local_port)
{
struct mlxsw_sib_port *mlxsw_sib_port = mlxsw_sib->ports[local_port];
mlxsw_core_port_clear(mlxsw_sib->core, local_port, mlxsw_sib);
mlxsw_sib->ports[local_port] = NULL;
mlxsw_sib_port_admin_status_set(mlxsw_sib_port, false);
mlxsw_sib_port_swid_set(mlxsw_sib_port, MLXSW_PORT_SWID_DISABLED_PORT);
kfree(mlxsw_sib_port);
}
static void mlxsw_sib_port_remove(struct mlxsw_sib *mlxsw_sib, u8 local_port)
{
__mlxsw_sib_port_remove(mlxsw_sib, local_port);
mlxsw_core_port_fini(mlxsw_sib->core, local_port);
}
static void mlxsw_sib_ports_remove(struct mlxsw_sib *mlxsw_sib)
{
int i;
for (i = 1; i < MLXSW_PORT_MAX_IB_PORTS; i++)
if (mlxsw_sib_port_created(mlxsw_sib, i))
mlxsw_sib_port_remove(mlxsw_sib, i);
kfree(mlxsw_sib->ports);
}
static int mlxsw_sib_ports_create(struct mlxsw_sib *mlxsw_sib)
{
size_t alloc_size;
u8 module, width;
int i;
int err;
alloc_size = sizeof(struct mlxsw_sib_port *) * MLXSW_PORT_MAX_IB_PORTS;
mlxsw_sib->ports = kzalloc(alloc_size, GFP_KERNEL);
if (!mlxsw_sib->ports)
return -ENOMEM;
for (i = 1; i < MLXSW_PORT_MAX_IB_PORTS; i++) {
err = mlxsw_sib_port_module_info_get(mlxsw_sib, i, &module,
&width);
if (err)
goto err_port_module_info_get;
if (!width)
continue;
err = mlxsw_sib_port_create(mlxsw_sib, i, module, width);
if (err)
goto err_port_create;
}
return 0;
err_port_create:
err_port_module_info_get:
for (i--; i >= 1; i--)
if (mlxsw_sib_port_created(mlxsw_sib, i))
mlxsw_sib_port_remove(mlxsw_sib, i);
kfree(mlxsw_sib->ports);
return err;
}
static void
mlxsw_sib_pude_ib_event_func(struct mlxsw_sib_port *mlxsw_sib_port,
enum mlxsw_reg_pude_oper_status status)
{
if (status == MLXSW_PORT_OPER_STATUS_UP)
pr_info("ib link for port %d - up\n",
mlxsw_sib_port->mapping.module + 1);
else
pr_info("ib link for port %d - down\n",
mlxsw_sib_port->mapping.module + 1);
}
static void mlxsw_sib_pude_event_func(const struct mlxsw_reg_info *reg,
char *pude_pl, void *priv)
{
struct mlxsw_sib *mlxsw_sib = priv;
struct mlxsw_sib_port *mlxsw_sib_port;
enum mlxsw_reg_pude_oper_status status;
u8 local_port;
local_port = mlxsw_reg_pude_local_port_get(pude_pl);
mlxsw_sib_port = mlxsw_sib->ports[local_port];
if (!mlxsw_sib_port) {
dev_warn(mlxsw_sib->bus_info->dev, "Port %d: Link event received for non-existent port\n",
local_port);
return;
}
status = mlxsw_reg_pude_oper_status_get(pude_pl);
mlxsw_sib_pude_ib_event_func(mlxsw_sib_port, status);
}
static struct mlxsw_event_listener mlxsw_sib_pude_event = {
.func = mlxsw_sib_pude_event_func,
.trap_id = MLXSW_TRAP_ID_PUDE,
};
static int mlxsw_sib_event_register(struct mlxsw_sib *mlxsw_sib,
enum mlxsw_event_trap_id trap_id)
{
struct mlxsw_event_listener *el;
char hpkt_pl[MLXSW_REG_HPKT_LEN];
int err;
switch (trap_id) {
case MLXSW_TRAP_ID_PUDE:
el = &mlxsw_sib_pude_event;
break;
}
err = mlxsw_core_event_listener_register(mlxsw_sib->core, el,
mlxsw_sib);
if (err)
return err;
mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
err = mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(hpkt), hpkt_pl);
if (err)
goto err_event_trap_set;
return 0;
err_event_trap_set:
mlxsw_core_event_listener_unregister(mlxsw_sib->core, el, mlxsw_sib);
return err;
}
static void mlxsw_sib_event_unregister(struct mlxsw_sib *mlxsw_sib,
enum mlxsw_event_trap_id trap_id)
{
struct mlxsw_event_listener *el;
switch (trap_id) {
case MLXSW_TRAP_ID_PUDE:
el = &mlxsw_sib_pude_event;
break;
}
mlxsw_core_event_listener_unregister(mlxsw_sib->core, el, mlxsw_sib);
}
static int mlxsw_sib_init(struct mlxsw_core *mlxsw_core,
const struct mlxsw_bus_info *mlxsw_bus_info)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_core_driver_priv(mlxsw_core);
int err;
mlxsw_sib->core = mlxsw_core;
mlxsw_sib->bus_info = mlxsw_bus_info;
err = mlxsw_sib_ports_create(mlxsw_sib);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Failed to create ports\n");
return err;
}
err = mlxsw_sib_event_register(mlxsw_sib, MLXSW_TRAP_ID_PUDE);
if (err) {
dev_err(mlxsw_sib->bus_info->dev, "Failed to register for PUDE events\n");
goto err_event_register;
}
return 0;
err_event_register:
mlxsw_sib_ports_remove(mlxsw_sib);
return err;
}
static void mlxsw_sib_fini(struct mlxsw_core *mlxsw_core)
{
struct mlxsw_sib *mlxsw_sib = mlxsw_core_driver_priv(mlxsw_core);
mlxsw_sib_event_unregister(mlxsw_sib, MLXSW_TRAP_ID_PUDE);
mlxsw_sib_ports_remove(mlxsw_sib);
}
static struct mlxsw_config_profile mlxsw_sib_config_profile = {
.used_max_system_port = 1,
.max_system_port = 48000,
.used_max_ib_mc = 1,
.max_ib_mc = 27,
.used_max_pkey = 1,
.max_pkey = 32,
.swid_config = {
{
.used_type = 1,
.type = MLXSW_PORT_SWID_TYPE_IB,
}
},
.resource_query_enable = 0,
};
static struct mlxsw_driver mlxsw_sib_driver = {
.kind = mlxsw_sib_driver_name,
.priv_size = sizeof(struct mlxsw_sib),
.init = mlxsw_sib_init,
.fini = mlxsw_sib_fini,
.txhdr_construct = mlxsw_sib_tx_v1_hdr_construct,
.txhdr_len = MLXSW_TXHDR_LEN,
.profile = &mlxsw_sib_config_profile,
};
static struct mlxsw_driver mlxsw_sib2_driver = {
.kind = mlxsw_sib2_driver_name,
.priv_size = sizeof(struct mlxsw_sib),
.init = mlxsw_sib_init,
.fini = mlxsw_sib_fini,
.txhdr_construct = mlxsw_sib_tx_v1_hdr_construct,
.txhdr_len = MLXSW_TXHDR_LEN,
.profile = &mlxsw_sib_config_profile,
};
static const struct pci_device_id mlxsw_sib_pci_id_table[] = {
{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHIB), 0},
{0, },
};
static struct pci_driver mlxsw_sib_pci_driver = {
.name = mlxsw_sib_driver_name,
.id_table = mlxsw_sib_pci_id_table,
};
static const struct pci_device_id mlxsw_sib2_pci_id_table[] = {
{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHIB2), 0},
{0, },
};
static struct pci_driver mlxsw_sib2_pci_driver = {
.name = mlxsw_sib2_driver_name,
.id_table = mlxsw_sib2_pci_id_table,
};
static int __init mlxsw_sib_module_init(void)
{
int err;
err = mlxsw_core_driver_register(&mlxsw_sib_driver);
if (err)
return err;
err = mlxsw_core_driver_register(&mlxsw_sib2_driver);
if (err)
goto err_sib2_driver_register;
err = mlxsw_pci_driver_register(&mlxsw_sib_pci_driver);
if (err)
goto err_sib_pci_driver_register;
err = mlxsw_pci_driver_register(&mlxsw_sib2_pci_driver);
if (err)
goto err_sib2_pci_driver_register;
return 0;
err_sib2_pci_driver_register:
mlxsw_pci_driver_unregister(&mlxsw_sib_pci_driver);
err_sib_pci_driver_register:
mlxsw_core_driver_unregister(&mlxsw_sib2_driver);
err_sib2_driver_register:
mlxsw_core_driver_unregister(&mlxsw_sib_driver);
return err;
}
static void __exit mlxsw_sib_module_exit(void)
{
mlxsw_pci_driver_unregister(&mlxsw_sib2_pci_driver);
mlxsw_pci_driver_unregister(&mlxsw_sib_pci_driver);
mlxsw_core_driver_unregister(&mlxsw_sib2_driver);
mlxsw_core_driver_unregister(&mlxsw_sib_driver);
}
module_init(mlxsw_sib_module_init);
module_exit(mlxsw_sib_module_exit);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Elad Raz <eladr@@mellanox.com>");
MODULE_DESCRIPTION("Mellanox SwitchIB and SwitchIB-2 driver");
MODULE_ALIAS("mlxsw_switchib2");
MODULE_DEVICE_TABLE(pci, mlxsw_sib_pci_id_table);
MODULE_DEVICE_TABLE(pci, mlxsw_sib2_pci_id_table);

380
drivers/net/ethernet/mellanox/mlxsw/switchx2.c
View File

@ -3,7 +3,7 @@
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
* Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
* Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
* Copyright (c) 2015-2016 Elad Raz <eladr@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@ -53,6 +53,7 @@
#include "port.h"
#include "trap.h"
#include "txheader.h"
#include "ib.h"
static const char mlxsw_sx_driver_name[] = "mlxsw_switchx2";
static const char mlxsw_sx_driver_version[] = "1.0";
@ -76,11 +77,13 @@ struct mlxsw_sx_port_pcpu_stats {
};
struct mlxsw_sx_port {
struct mlxsw_core_port core_port; /* must be first */
struct net_device *dev;
struct mlxsw_sx_port_pcpu_stats __percpu *pcpu_stats;
struct mlxsw_sx *mlxsw_sx;
u8 local_port;
struct {
u8 module;
} mapping;
};
/* tx_hdr_version
@ -216,14 +219,14 @@ static int mlxsw_sx_port_oper_status_get(struct mlxsw_sx_port *mlxsw_sx_port,
return 0;
}
static int mlxsw_sx_port_mtu_set(struct mlxsw_sx_port *mlxsw_sx_port, u16 mtu)
static int __mlxsw_sx_port_mtu_set(struct mlxsw_sx_port *mlxsw_sx_port,
u16 mtu)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
char pmtu_pl[MLXSW_REG_PMTU_LEN];
int max_mtu;
int err;
mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sx_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(pmtu), pmtu_pl);
if (err)
@ -237,6 +240,32 @@ static int mlxsw_sx_port_mtu_set(struct mlxsw_sx_port *mlxsw_sx_port, u16 mtu)
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(pmtu), pmtu_pl);
}
static int mlxsw_sx_port_mtu_eth_set(struct mlxsw_sx_port *mlxsw_sx_port,
u16 mtu)
{
mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
return __mlxsw_sx_port_mtu_set(mlxsw_sx_port, mtu);
}
static int mlxsw_sx_port_mtu_ib_set(struct mlxsw_sx_port *mlxsw_sx_port,
u16 mtu)
{
return __mlxsw_sx_port_mtu_set(mlxsw_sx_port, mtu);
}
static int mlxsw_sx_port_ib_port_set(struct mlxsw_sx_port *mlxsw_sx_port,
u8 ib_port)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
char plib_pl[MLXSW_REG_PLIB_LEN] = {0};
int err;
mlxsw_reg_plib_local_port_set(plib_pl, mlxsw_sx_port->local_port);
mlxsw_reg_plib_ib_port_set(plib_pl, ib_port);
err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(plib), plib_pl);
return err;
}
static int mlxsw_sx_port_swid_set(struct mlxsw_sx_port *mlxsw_sx_port, u8 swid)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
@ -256,18 +285,19 @@ mlxsw_sx_port_system_port_mapping_set(struct mlxsw_sx_port *mlxsw_sx_port)
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sspr), sspr_pl);
}
static int mlxsw_sx_port_module_check(struct mlxsw_sx_port *mlxsw_sx_port,
bool *p_usable)
static int mlxsw_sx_port_module_info_get(struct mlxsw_sx *mlxsw_sx,
u8 local_port, u8 *p_module,
u8 *p_width)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
char pmlp_pl[MLXSW_REG_PMLP_LEN];
int err;
mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sx_port->local_port);
mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(pmlp), pmlp_pl);
if (err)
return err;
*p_usable = mlxsw_reg_pmlp_width_get(pmlp_pl) ? true : false;
*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
return 0;
}
@ -345,7 +375,7 @@ static int mlxsw_sx_port_change_mtu(struct net_device *dev, int mtu)
struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
int err;
err = mlxsw_sx_port_mtu_set(mlxsw_sx_port, mtu);
err = mlxsw_sx_port_mtu_eth_set(mlxsw_sx_port, mtu);
if (err)
return err;
dev->mtu = mtu;
@ -384,12 +414,26 @@ mlxsw_sx_port_get_stats64(struct net_device *dev,
return stats;
}
static int mlxsw_sx_port_get_phys_port_name(struct net_device *dev, char *name,
size_t len)
{
struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
int err;
err = snprintf(name, len, "p%d", mlxsw_sx_port->mapping.module + 1);
if (err >= len)
return -EINVAL;
return 0;
}
static const struct net_device_ops mlxsw_sx_port_netdev_ops = {
.ndo_open = mlxsw_sx_port_open,
.ndo_stop = mlxsw_sx_port_stop,
.ndo_start_xmit = mlxsw_sx_port_xmit,
.ndo_change_mtu = mlxsw_sx_port_change_mtu,
.ndo_get_stats64 = mlxsw_sx_port_get_stats64,
.ndo_get_phys_port_name = mlxsw_sx_port_get_phys_port_name,
};
static void mlxsw_sx_port_get_drvinfo(struct net_device *dev,
@ -644,6 +688,7 @@ static const struct mlxsw_sx_port_link_mode mlxsw_sx_port_link_mode[] = {
};
#define MLXSW_SX_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sx_port_link_mode)
#define MLXSW_SX_PORT_BASE_SPEED 10000 /* Mb/s */
static u32 mlxsw_sx_from_ptys_supported_port(u32 ptys_eth_proto)
{
@ -743,14 +788,14 @@ static int mlxsw_sx_port_get_settings(struct net_device *dev,
u32 eth_proto_oper;
int err;
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sx_port->local_port, 0);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
if (err) {
netdev_err(dev, "Failed to get proto");
return err;
}
mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap,
&eth_proto_admin, &eth_proto_oper);
mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap,
&eth_proto_admin, &eth_proto_oper);
cmd->supported = mlxsw_sx_from_ptys_supported_port(eth_proto_cap) |
mlxsw_sx_from_ptys_supported_link(eth_proto_cap) |
@ -791,6 +836,18 @@ static u32 mlxsw_sx_to_ptys_speed(u32 speed)
return ptys_proto;
}
static u32 mlxsw_sx_to_ptys_upper_speed(u32 upper_speed)
{
u32 ptys_proto = 0;
int i;
for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
if (mlxsw_sx_port_link_mode[i].speed <= upper_speed)
ptys_proto |= mlxsw_sx_port_link_mode[i].mask;
}
return ptys_proto;
}
static int mlxsw_sx_port_set_settings(struct net_device *dev,
struct ethtool_cmd *cmd)
{
@ -810,13 +867,14 @@ static int mlxsw_sx_port_set_settings(struct net_device *dev,
mlxsw_sx_to_ptys_advert_link(cmd->advertising) :
mlxsw_sx_to_ptys_speed(speed);
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sx_port->local_port, 0);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
if (err) {
netdev_err(dev, "Failed to get proto");
return err;
}
mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin, NULL);
mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin,
NULL);
eth_proto_new = eth_proto_new & eth_proto_cap;
if (!eth_proto_new) {
@ -826,7 +884,8 @@ static int mlxsw_sx_port_set_settings(struct net_device *dev,
if (eth_proto_new == eth_proto_admin)
return 0;
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sx_port->local_port, eth_proto_new);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port,
eth_proto_new);
err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
if (err) {
netdev_err(dev, "Failed to set proto admin");
@ -890,7 +949,7 @@ static const struct switchdev_ops mlxsw_sx_port_switchdev_ops = {
static int mlxsw_sx_hw_id_get(struct mlxsw_sx *mlxsw_sx)
{
char spad_pl[MLXSW_REG_SPAD_LEN];
char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
int err;
err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(spad), spad_pl);
@ -937,13 +996,28 @@ static int mlxsw_sx_port_stp_state_set(struct mlxsw_sx_port *mlxsw_sx_port,
return err;
}
static int mlxsw_sx_port_speed_set(struct mlxsw_sx_port *mlxsw_sx_port,
u32 speed)
static int mlxsw_sx_port_ib_speed_set(struct mlxsw_sx_port *mlxsw_sx_port,
u16 speed, u16 width)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
char ptys_pl[MLXSW_REG_PTYS_LEN];
mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sx_port->local_port, speed);
mlxsw_reg_ptys_ib_pack(ptys_pl, mlxsw_sx_port->local_port, speed,
width);
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
}
static int
mlxsw_sx_port_speed_by_width_set(struct mlxsw_sx_port *mlxsw_sx_port, u8 width)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
u32 upper_speed = MLXSW_SX_PORT_BASE_SPEED * width;
char ptys_pl[MLXSW_REG_PTYS_LEN];
u32 eth_proto_admin;
eth_proto_admin = mlxsw_sx_to_ptys_upper_speed(upper_speed);
mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port,
eth_proto_admin);
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
}
@ -958,11 +1032,11 @@ mlxsw_sx_port_mac_learning_mode_set(struct mlxsw_sx_port *mlxsw_sx_port,
return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(spmlr), spmlr_pl);
}
static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
static int __mlxsw_sx_port_eth_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
u8 module, u8 width)
{
struct mlxsw_sx_port *mlxsw_sx_port;
struct net_device *dev;
bool usable;
int err;
dev = alloc_etherdev(sizeof(struct mlxsw_sx_port));
@ -973,6 +1047,7 @@ static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
mlxsw_sx_port->dev = dev;
mlxsw_sx_port->mlxsw_sx = mlxsw_sx;
mlxsw_sx_port->local_port = local_port;
mlxsw_sx_port->mapping.module = module;
mlxsw_sx_port->pcpu_stats =
netdev_alloc_pcpu_stats(struct mlxsw_sx_port_pcpu_stats);
@ -1005,19 +1080,6 @@ static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
*/
dev->needed_headroom = MLXSW_TXHDR_LEN;
err = mlxsw_sx_port_module_check(mlxsw_sx_port, &usable);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to check module\n",
mlxsw_sx_port->local_port);
goto err_port_module_check;
}
if (!usable) {
dev_dbg(mlxsw_sx->bus_info->dev, "Port %d: Not usable, skipping initialization\n",
mlxsw_sx_port->local_port);
goto port_not_usable;
}
err = mlxsw_sx_port_system_port_mapping_set(mlxsw_sx_port);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set system port mapping\n",
@ -1032,15 +1094,14 @@ static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
goto err_port_swid_set;
}
err = mlxsw_sx_port_speed_set(mlxsw_sx_port,
MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4);
err = mlxsw_sx_port_speed_by_width_set(mlxsw_sx_port, width);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set speed\n",
mlxsw_sx_port->local_port);
goto err_port_speed_set;
}
err = mlxsw_sx_port_mtu_set(mlxsw_sx_port, ETH_DATA_LEN);
err = mlxsw_sx_port_mtu_eth_set(mlxsw_sx_port, ETH_DATA_LEN);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set MTU\n",
mlxsw_sx_port->local_port);
@ -1075,19 +1136,11 @@ static int mlxsw_sx_port_create(struct mlxsw_sx *mlxsw_sx, u8 local_port)
goto err_register_netdev;
}
err = mlxsw_core_port_init(mlxsw_sx->core, &mlxsw_sx_port->core_port,
mlxsw_sx_port->local_port, dev, false, 0);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to init core port\n",
mlxsw_sx_port->local_port);
goto err_core_port_init;
}
mlxsw_core_port_eth_set(mlxsw_sx->core, mlxsw_sx_port->local_port,
mlxsw_sx_port, dev, false, 0);
mlxsw_sx->ports[local_port] = mlxsw_sx_port;
return 0;
err_core_port_init:
unregister_netdev(dev);
err_register_netdev:
err_port_mac_learning_mode_set:
err_port_stp_state_set:
@ -1097,8 +1150,6 @@ err_port_speed_set:
mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
err_port_system_port_mapping_set:
port_not_usable:
err_port_module_check:
err_dev_addr_get:
free_percpu(mlxsw_sx_port->pcpu_stats);
err_alloc_stats:
@ -1106,31 +1157,168 @@ err_alloc_stats:
return err;
}
static void mlxsw_sx_port_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
static int mlxsw_sx_port_eth_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
u8 module, u8 width)
{
int err;
err = mlxsw_core_port_init(mlxsw_sx->core, local_port);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to init core port\n",
local_port);
return err;
}
err = __mlxsw_sx_port_eth_create(mlxsw_sx, local_port, module, width);
if (err)
goto err_port_create;
return 0;
err_port_create:
mlxsw_core_port_fini(mlxsw_sx->core, local_port);
return err;
}
static void __mlxsw_sx_port_eth_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
{
struct mlxsw_sx_port *mlxsw_sx_port = mlxsw_sx->ports[local_port];
if (!mlxsw_sx_port)
return;
mlxsw_core_port_fini(&mlxsw_sx_port->core_port);
mlxsw_core_port_clear(mlxsw_sx->core, local_port, mlxsw_sx);
unregister_netdev(mlxsw_sx_port->dev); /* This calls ndo_stop */
mlxsw_sx->ports[local_port] = NULL;
mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
free_percpu(mlxsw_sx_port->pcpu_stats);
free_netdev(mlxsw_sx_port->dev);
}
static bool mlxsw_sx_port_created(struct mlxsw_sx *mlxsw_sx, u8 local_port)
{
return mlxsw_sx->ports[local_port] != NULL;
}
static int __mlxsw_sx_port_ib_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
u8 module, u8 width)
{
struct mlxsw_sx_port *mlxsw_sx_port;
int err;
mlxsw_sx_port = kzalloc(sizeof(*mlxsw_sx_port), GFP_KERNEL);
if (!mlxsw_sx_port)
return -ENOMEM;
mlxsw_sx_port->mlxsw_sx = mlxsw_sx;
mlxsw_sx_port->local_port = local_port;
mlxsw_sx_port->mapping.module = module;
err = mlxsw_sx_port_system_port_mapping_set(mlxsw_sx_port);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set system port mapping\n",
mlxsw_sx_port->local_port);
goto err_port_system_port_mapping_set;
}
/* Adding port to Infiniband swid (1) */
err = mlxsw_sx_port_swid_set(mlxsw_sx_port, 1);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set SWID\n",
mlxsw_sx_port->local_port);
goto err_port_swid_set;
}
/* Expose the IB port number as it's front panel name */
err = mlxsw_sx_port_ib_port_set(mlxsw_sx_port, module + 1);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set IB port\n",
mlxsw_sx_port->local_port);
goto err_port_ib_set;
}
/* Supports all speeds from SDR to FDR (bitmask) and support bus width
* of 1x, 2x and 4x (3 bits bitmask)
*/
err = mlxsw_sx_port_ib_speed_set(mlxsw_sx_port,
MLXSW_REG_PTYS_IB_SPEED_EDR - 1,
BIT(3) - 1);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set speed\n",
mlxsw_sx_port->local_port);
goto err_port_speed_set;
}
/* Change to the maximum MTU the device supports, the SMA will take
* care of the active MTU
*/
err = mlxsw_sx_port_mtu_ib_set(mlxsw_sx_port, MLXSW_IB_DEFAULT_MTU);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set MTU\n",
mlxsw_sx_port->local_port);
goto err_port_mtu_set;
}
err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, true);
if (err) {
dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to change admin state to UP\n",
mlxsw_sx_port->local_port);
goto err_port_admin_set;
}
mlxsw_core_port_ib_set(mlxsw_sx->core, mlxsw_sx_port->local_port,
mlxsw_sx_port);
mlxsw_sx->ports[local_port] = mlxsw_sx_port;
return 0;
err_port_admin_set:
err_port_mtu_set:
err_port_speed_set:
err_port_ib_set:
mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
err_port_system_port_mapping_set:
kfree(mlxsw_sx_port);
return err;
}
static void __mlxsw_sx_port_ib_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
{
struct mlxsw_sx_port *mlxsw_sx_port = mlxsw_sx->ports[local_port];
mlxsw_core_port_clear(mlxsw_sx->core, local_port, mlxsw_sx);
mlxsw_sx->ports[local_port] = NULL;
mlxsw_sx_port_admin_status_set(mlxsw_sx_port, false);
mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
kfree(mlxsw_sx_port);
}
static void __mlxsw_sx_port_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
{
enum devlink_port_type port_type =
mlxsw_core_port_type_get(mlxsw_sx->core, local_port);
if (port_type == DEVLINK_PORT_TYPE_ETH)
__mlxsw_sx_port_eth_remove(mlxsw_sx, local_port);
else if (port_type == DEVLINK_PORT_TYPE_IB)
__mlxsw_sx_port_ib_remove(mlxsw_sx, local_port);
}
static void mlxsw_sx_port_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
{
__mlxsw_sx_port_remove(mlxsw_sx, local_port);
mlxsw_core_port_fini(mlxsw_sx->core, local_port);
}
static void mlxsw_sx_ports_remove(struct mlxsw_sx *mlxsw_sx)
{
int i;
for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
mlxsw_sx_port_remove(mlxsw_sx, i);
if (mlxsw_sx_port_created(mlxsw_sx, i))
mlxsw_sx_port_remove(mlxsw_sx, i);
kfree(mlxsw_sx->ports);
}
static int mlxsw_sx_ports_create(struct mlxsw_sx *mlxsw_sx)
{
size_t alloc_size;
u8 module, width;
int i;
int err;
@ -1140,25 +1328,57 @@ static int mlxsw_sx_ports_create(struct mlxsw_sx *mlxsw_sx)
return -ENOMEM;
for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
err = mlxsw_sx_port_create(mlxsw_sx, i);
err = mlxsw_sx_port_module_info_get(mlxsw_sx, i, &module,
&width);
if (err)
goto err_port_module_info_get;
if (!width)
continue;
err = mlxsw_sx_port_eth_create(mlxsw_sx, i, module, width);
if (err)
goto err_port_create;
}
return 0;
err_port_create:
err_port_module_info_get:
for (i--; i >= 1; i--)
mlxsw_sx_port_remove(mlxsw_sx, i);
if (mlxsw_sx_port_created(mlxsw_sx, i))
mlxsw_sx_port_remove(mlxsw_sx, i);
kfree(mlxsw_sx->ports);
return err;
}
static void mlxsw_sx_pude_eth_event_func(struct mlxsw_sx_port *mlxsw_sx_port,
enum mlxsw_reg_pude_oper_status status)
{
if (status == MLXSW_PORT_OPER_STATUS_UP) {
netdev_info(mlxsw_sx_port->dev, "link up\n");
netif_carrier_on(mlxsw_sx_port->dev);
} else {
netdev_info(mlxsw_sx_port->dev, "link down\n");
netif_carrier_off(mlxsw_sx_port->dev);
}
}
static void mlxsw_sx_pude_ib_event_func(struct mlxsw_sx_port *mlxsw_sx_port,
enum mlxsw_reg_pude_oper_status status)
{
if (status == MLXSW_PORT_OPER_STATUS_UP)
pr_info("ib link for port %d - up\n",
mlxsw_sx_port->mapping.module + 1);
else
pr_info("ib link for port %d - down\n",
mlxsw_sx_port->mapping.module + 1);
}
static void mlxsw_sx_pude_event_func(const struct mlxsw_reg_info *reg,
char *pude_pl, void *priv)
{
struct mlxsw_sx *mlxsw_sx = priv;
struct mlxsw_sx_port *mlxsw_sx_port;
enum mlxsw_reg_pude_oper_status status;
enum devlink_port_type port_type;
u8 local_port;
local_port = mlxsw_reg_pude_local_port_get(pude_pl);
@ -1170,13 +1390,11 @@ static void mlxsw_sx_pude_event_func(const struct mlxsw_reg_info *reg,
}
status = mlxsw_reg_pude_oper_status_get(pude_pl);
if (status == MLXSW_PORT_OPER_STATUS_UP) {
netdev_info(mlxsw_sx_port->dev, "link up\n");
netif_carrier_on(mlxsw_sx_port->dev);
} else {
netdev_info(mlxsw_sx_port->dev, "link down\n");
netif_carrier_off(mlxsw_sx_port->dev);
}
port_type = mlxsw_core_port_type_get(mlxsw_sx->core, local_port);
if (port_type == DEVLINK_PORT_TYPE_ETH)
mlxsw_sx_pude_eth_event_func(mlxsw_sx_port, status);
else if (port_type == DEVLINK_PORT_TYPE_IB)
mlxsw_sx_pude_ib_event_func(mlxsw_sx_port, status);
}
static struct mlxsw_event_listener mlxsw_sx_pude_event = {
@ -1250,6 +1468,33 @@ static void mlxsw_sx_rx_listener_func(struct sk_buff *skb, u8 local_port,
netif_receive_skb(skb);
}
static int mlxsw_sx_port_type_set(struct mlxsw_core *mlxsw_core, u8 local_port,
enum devlink_port_type new_type)
{
struct mlxsw_sx *mlxsw_sx = mlxsw_core_driver_priv(mlxsw_core);
u8 module, width;
int err;
if (new_type == DEVLINK_PORT_TYPE_AUTO)
return -EOPNOTSUPP;
__mlxsw_sx_port_remove(mlxsw_sx, local_port);
err = mlxsw_sx_port_module_info_get(mlxsw_sx, local_port, &module,
&width);
if (err)
goto err_port_module_info_get;
if (new_type == DEVLINK_PORT_TYPE_ETH)
err = __mlxsw_sx_port_eth_create(mlxsw_sx, local_port, module,
width);
else if (new_type == DEVLINK_PORT_TYPE_IB)
err = __mlxsw_sx_port_ib_create(mlxsw_sx, local_port, module,
width);
err_port_module_info_get:
return err;
}
static const struct mlxsw_rx_listener mlxsw_sx_rx_listener[] = {
{
.func = mlxsw_sx_rx_listener_func,
@ -1535,13 +1780,17 @@ static struct mlxsw_config_profile mlxsw_sx_config_profile = {
.used_flood_mode = 1,
.flood_mode = 3,
.used_max_ib_mc = 1,
.max_ib_mc = 0,
.max_ib_mc = 6,
.used_max_pkey = 1,
.max_pkey = 0,
.swid_config = {
{
.used_type = 1,
.type = MLXSW_PORT_SWID_TYPE_ETH,
},
{
.used_type = 1,
.type = MLXSW_PORT_SWID_TYPE_IB,
}
},
.resource_query_enable = 0,
@ -1555,6 +1804,7 @@ static struct mlxsw_driver mlxsw_sx_driver = {
.txhdr_construct = mlxsw_sx_txhdr_construct,
.txhdr_len = MLXSW_TXHDR_LEN,
.profile = &mlxsw_sx_config_profile,
.port_type_set = mlxsw_sx_port_type_set,
};
static const struct pci_device_id mlxsw_sx_pci_id_table[] = {