blob: 1a351e2f6aced3fb70ebc549579a1626fa297854 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2019 Mellanox Technologies */
#include <devlink.h>
#include "mlx5_core.h"
#include "fw_reset.h"
#include "fs_core.h"
#include "eswitch.h"
static int mlx5_devlink_flash_update(struct devlink *devlink,
struct devlink_flash_update_params *params,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
const struct firmware *fw;
int err;
err = request_firmware_direct(&fw, params->file_name, &dev->pdev->dev);
if (err)
return err;
err = mlx5_firmware_flash(dev, fw, extack);
release_firmware(fw);
return err;
}
static u8 mlx5_fw_ver_major(u32 version)
{
return (version >> 24) & 0xff;
}
static u8 mlx5_fw_ver_minor(u32 version)
{
return (version >> 16) & 0xff;
}
static u16 mlx5_fw_ver_subminor(u32 version)
{
return version & 0xffff;
}
#define DEVLINK_FW_STRING_LEN 32
static int
mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
char version_str[DEVLINK_FW_STRING_LEN];
u32 running_fw, stored_fw;
int err;
err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
if (err)
return err;
err = devlink_info_version_fixed_put(req, "fw.psid", dev->board_id);
if (err)
return err;
err = mlx5_fw_version_query(dev, &running_fw, &stored_fw);
if (err)
return err;
snprintf(version_str, sizeof(version_str), "%d.%d.%04d",
mlx5_fw_ver_major(running_fw), mlx5_fw_ver_minor(running_fw),
mlx5_fw_ver_subminor(running_fw));
err = devlink_info_version_running_put(req, "fw.version", version_str);
if (err)
return err;
/* no pending version, return running (stored) version */
if (stored_fw == 0)
stored_fw = running_fw;
snprintf(version_str, sizeof(version_str), "%d.%d.%04d",
mlx5_fw_ver_major(stored_fw), mlx5_fw_ver_minor(stored_fw),
mlx5_fw_ver_subminor(stored_fw));
err = devlink_info_version_stored_put(req, "fw.version", version_str);
if (err)
return err;
return 0;
}
static int mlx5_devlink_reload_fw_activate(struct devlink *devlink, struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
u8 reset_level, reset_type, net_port_alive;
int err;
err = mlx5_fw_reset_query(dev, &reset_level, &reset_type);
if (err)
return err;
if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL3)) {
NL_SET_ERR_MSG_MOD(extack, "FW activate requires reboot");
return -EINVAL;
}
net_port_alive = !!(reset_type & MLX5_MFRL_REG_RESET_TYPE_NET_PORT_ALIVE);
err = mlx5_fw_reset_set_reset_sync(dev, net_port_alive);
if (err)
goto out;
err = mlx5_fw_reset_wait_reset_done(dev);
out:
if (err)
NL_SET_ERR_MSG_MOD(extack, "FW activate command failed");
return err;
}
static int mlx5_devlink_trigger_fw_live_patch(struct devlink *devlink,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
u8 reset_level;
int err;
err = mlx5_fw_reset_query(dev, &reset_level, NULL);
if (err)
return err;
if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL0)) {
NL_SET_ERR_MSG_MOD(extack,
"FW upgrade to the stored FW can't be done by FW live patching");
return -EINVAL;
}
return mlx5_fw_reset_set_live_patch(dev);
}
static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change,
enum devlink_reload_action action,
enum devlink_reload_limit limit,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
mlx5_unload_one(dev, false);
return 0;
case DEVLINK_RELOAD_ACTION_FW_ACTIVATE:
if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
return mlx5_devlink_trigger_fw_live_patch(devlink, extack);
return mlx5_devlink_reload_fw_activate(devlink, extack);
default:
/* Unsupported action should not get to this function */
WARN_ON(1);
return -EOPNOTSUPP;
}
}
static int mlx5_devlink_reload_up(struct devlink *devlink, enum devlink_reload_action action,
enum devlink_reload_limit limit, u32 *actions_performed,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
*actions_performed = BIT(action);
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
return mlx5_load_one(dev, false);
case DEVLINK_RELOAD_ACTION_FW_ACTIVATE:
if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
break;
/* On fw_activate action, also driver is reloaded and reinit performed */
*actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
return mlx5_load_one(dev, false);
default:
/* Unsupported action should not get to this function */
WARN_ON(1);
return -EOPNOTSUPP;
}
return 0;
}
static const struct devlink_ops mlx5_devlink_ops = {
#ifdef CONFIG_MLX5_ESWITCH
.eswitch_mode_set = mlx5_devlink_eswitch_mode_set,
.eswitch_mode_get = mlx5_devlink_eswitch_mode_get,
.eswitch_inline_mode_set = mlx5_devlink_eswitch_inline_mode_set,
.eswitch_inline_mode_get = mlx5_devlink_eswitch_inline_mode_get,
.eswitch_encap_mode_set = mlx5_devlink_eswitch_encap_mode_set,
.eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get,
.port_function_hw_addr_get = mlx5_devlink_port_function_hw_addr_get,
.port_function_hw_addr_set = mlx5_devlink_port_function_hw_addr_set,
#endif
.flash_update = mlx5_devlink_flash_update,
.info_get = mlx5_devlink_info_get,
.reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
.reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
.reload_down = mlx5_devlink_reload_down,
.reload_up = mlx5_devlink_reload_up,
};
struct devlink *mlx5_devlink_alloc(void)
{
return devlink_alloc(&mlx5_devlink_ops, sizeof(struct mlx5_core_dev));
}
void mlx5_devlink_free(struct devlink *devlink)
{
devlink_free(devlink);
}
static int mlx5_devlink_fs_mode_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
char *value = val.vstr;
int err = 0;
if (!strcmp(value, "dmfs")) {
return 0;
} else if (!strcmp(value, "smfs")) {
u8 eswitch_mode;
bool smfs_cap;
eswitch_mode = mlx5_eswitch_mode(dev->priv.eswitch);
smfs_cap = mlx5_fs_dr_is_supported(dev);
if (!smfs_cap) {
err = -EOPNOTSUPP;
NL_SET_ERR_MSG_MOD(extack,
"Software managed steering is not supported by current device");
}
else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) {
NL_SET_ERR_MSG_MOD(extack,
"Software managed steering is not supported when eswitch offloads enabled.");
err = -EOPNOTSUPP;
}
} else {
NL_SET_ERR_MSG_MOD(extack,
"Bad parameter: supported values are [\"dmfs\", \"smfs\"]");
err = -EINVAL;
}
return err;
}
static int mlx5_devlink_fs_mode_set(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
enum mlx5_flow_steering_mode mode;
if (!strcmp(ctx->val.vstr, "smfs"))
mode = MLX5_FLOW_STEERING_MODE_SMFS;
else
mode = MLX5_FLOW_STEERING_MODE_DMFS;
dev->priv.steering->mode = mode;
return 0;
}
static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS)
strcpy(ctx->val.vstr, "smfs");
else
strcpy(ctx->val.vstr, "dmfs");
return 0;
}
static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
bool new_state = val.vbool;
if (new_state && !MLX5_CAP_GEN(dev, roce)) {
NL_SET_ERR_MSG_MOD(extack, "Device doesn't support RoCE");
return -EOPNOTSUPP;
}
return 0;
}
#ifdef CONFIG_MLX5_ESWITCH
static int mlx5_devlink_large_group_num_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
int group_num = val.vu32;
if (group_num < 1 || group_num > 1024) {
NL_SET_ERR_MSG_MOD(extack,
"Unsupported group number, supported range is 1-1024");
return -EOPNOTSUPP;
}
return 0;
}
#endif
static int mlx5_devlink_enable_remote_dev_reset_set(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
mlx5_fw_reset_enable_remote_dev_reset_set(dev, ctx->val.vbool);
return 0;
}
static int mlx5_devlink_enable_remote_dev_reset_get(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
ctx->val.vbool = mlx5_fw_reset_enable_remote_dev_reset_get(dev);
return 0;
}
static const struct devlink_param mlx5_devlink_params[] = {
DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
"flow_steering_mode", DEVLINK_PARAM_TYPE_STRING,
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
mlx5_devlink_fs_mode_get, mlx5_devlink_fs_mode_set,
mlx5_devlink_fs_mode_validate),
DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL, mlx5_devlink_enable_roce_validate),
#ifdef CONFIG_MLX5_ESWITCH
DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
"fdb_large_groups", DEVLINK_PARAM_TYPE_U32,
BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL,
mlx5_devlink_large_group_num_validate),
#endif
DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
mlx5_devlink_enable_remote_dev_reset_get,
mlx5_devlink_enable_remote_dev_reset_set, NULL),
};
static void mlx5_devlink_set_params_init_values(struct devlink *devlink)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
union devlink_param_value value;
if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_DMFS)
strcpy(value.vstr, "dmfs");
else
strcpy(value.vstr, "smfs");
devlink_param_driverinit_value_set(devlink,
MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
value);
value.vbool = MLX5_CAP_GEN(dev, roce);
devlink_param_driverinit_value_set(devlink,
DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
value);
#ifdef CONFIG_MLX5_ESWITCH
value.vu32 = ESW_OFFLOADS_DEFAULT_NUM_GROUPS;
devlink_param_driverinit_value_set(devlink,
MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
value);
#endif
}
int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
{
int err;
err = devlink_register(devlink, dev);
if (err)
return err;
err = devlink_params_register(devlink, mlx5_devlink_params,
ARRAY_SIZE(mlx5_devlink_params));
if (err)
goto params_reg_err;
mlx5_devlink_set_params_init_values(devlink);
devlink_params_publish(devlink);
return 0;
params_reg_err:
devlink_unregister(devlink);
return err;
}
void mlx5_devlink_unregister(struct devlink *devlink)
{
devlink_params_unregister(devlink, mlx5_devlink_params,
ARRAY_SIZE(mlx5_devlink_params));
devlink_unregister(devlink);
}