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-rw-r--r--drivers/net/ethernet/mellanox/mlx4/catas.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c44
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4.h3
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/core.c30
-rw-r--r--drivers/net/netdevsim/dev.c13
-rw-r--r--include/net/devlink.h8
-rw-r--r--include/uapi/linux/devlink.h2
-rw-r--r--net/core/devlink.c35
8 files changed, 106 insertions, 31 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/catas.c b/drivers/net/ethernet/mellanox/mlx4/catas.c
index 87e90b5d4d7d..5b11557f1ae4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/catas.c
+++ b/drivers/net/ethernet/mellanox/mlx4/catas.c
@@ -210,7 +210,7 @@ static void mlx4_handle_error_state(struct mlx4_dev_persistent *persist)
mutex_lock(&persist->interface_state_mutex);
if (persist->interface_state & MLX4_INTERFACE_STATE_UP &&
!(persist->interface_state & MLX4_INTERFACE_STATE_DELETION)) {
- err = mlx4_restart_one(persist->pdev, false, NULL);
+ err = mlx4_restart_one(persist->pdev);
mlx4_info(persist->dev, "mlx4_restart_one was ended, ret=%d\n",
err);
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 07c204bd3fc4..ef3f3d06ff1e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -3931,26 +3931,43 @@ static void mlx4_devlink_param_load_driverinit_values(struct devlink *devlink)
}
}
-static int mlx4_devlink_reload(struct devlink *devlink,
- struct netlink_ext_ack *extack)
+static void mlx4_restart_one_down(struct pci_dev *pdev);
+static int mlx4_restart_one_up(struct pci_dev *pdev, bool reload,
+ struct devlink *devlink);
+
+static int mlx4_devlink_reload_down(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
{
struct mlx4_priv *priv = devlink_priv(devlink);
struct mlx4_dev *dev = &priv->dev;
struct mlx4_dev_persistent *persist = dev->persist;
- int err;
if (persist->num_vfs)
mlx4_warn(persist->dev, "Reload performed on PF, will cause reset on operating Virtual Functions\n");
- err = mlx4_restart_one(persist->pdev, true, devlink);
+ mlx4_restart_one_down(persist->pdev);
+ return 0;
+}
+
+static int mlx4_devlink_reload_up(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
+{
+ struct mlx4_priv *priv = devlink_priv(devlink);
+ struct mlx4_dev *dev = &priv->dev;
+ struct mlx4_dev_persistent *persist = dev->persist;
+ int err;
+
+ err = mlx4_restart_one_up(persist->pdev, true, devlink);
if (err)
- mlx4_err(persist->dev, "mlx4_restart_one failed, ret=%d\n", err);
+ mlx4_err(persist->dev, "mlx4_restart_one_up failed, ret=%d\n",
+ err);
return err;
}
static const struct devlink_ops mlx4_devlink_ops = {
.port_type_set = mlx4_devlink_port_type_set,
- .reload = mlx4_devlink_reload,
+ .reload_down = mlx4_devlink_reload_down,
+ .reload_up = mlx4_devlink_reload_up,
};
static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
@@ -4163,7 +4180,13 @@ static int restore_current_port_types(struct mlx4_dev *dev,
return err;
}
-int mlx4_restart_one(struct pci_dev *pdev, bool reload, struct devlink *devlink)
+static void mlx4_restart_one_down(struct pci_dev *pdev)
+{
+ mlx4_unload_one(pdev);
+}
+
+static int mlx4_restart_one_up(struct pci_dev *pdev, bool reload,
+ struct devlink *devlink)
{
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
struct mlx4_dev *dev = persist->dev;
@@ -4175,7 +4198,6 @@ int mlx4_restart_one(struct pci_dev *pdev, bool reload, struct devlink *devlink)
total_vfs = dev->persist->num_vfs;
memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
- mlx4_unload_one(pdev);
if (reload)
mlx4_devlink_param_load_driverinit_values(devlink);
err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1);
@@ -4194,6 +4216,12 @@ int mlx4_restart_one(struct pci_dev *pdev, bool reload, struct devlink *devlink)
return err;
}
+int mlx4_restart_one(struct pci_dev *pdev)
+{
+ mlx4_restart_one_down(pdev);
+ return mlx4_restart_one_up(pdev, false, NULL);
+}
+
#define MLX_SP(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_FORCE_SENSE_PORT }
#define MLX_VF(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_IS_VF }
#define MLX_GN(id) { PCI_VDEVICE(MELLANOX, id), 0 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 23f1b5b512c2..527b52e48276 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -1043,8 +1043,7 @@ int mlx4_catas_init(struct mlx4_dev *dev);
void mlx4_catas_end(struct mlx4_dev *dev);
int mlx4_crdump_init(struct mlx4_dev *dev);
void mlx4_crdump_end(struct mlx4_dev *dev);
-int mlx4_restart_one(struct pci_dev *pdev, bool reload,
- struct devlink *devlink);
+int mlx4_restart_one(struct pci_dev *pdev);
int mlx4_register_device(struct mlx4_dev *dev);
void mlx4_unregister_device(struct mlx4_dev *dev);
void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 963a2b4b61b1..3fa96076e8a5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -80,7 +80,6 @@ struct mlxsw_core {
struct mlxsw_thermal *thermal;
struct mlxsw_core_port *ports;
unsigned int max_ports;
- bool reload_fail;
bool fw_flash_in_progress;
unsigned long driver_priv[0];
/* driver_priv has to be always the last item */
@@ -984,23 +983,29 @@ mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
return 0;
}
-static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink,
- struct netlink_ext_ack *extack)
+static int
+mlxsw_devlink_core_bus_device_reload_down(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
- int err;
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_RESET))
return -EOPNOTSUPP;
mlxsw_core_bus_device_unregister(mlxsw_core, true);
- err = mlxsw_core_bus_device_register(mlxsw_core->bus_info,
- mlxsw_core->bus,
- mlxsw_core->bus_priv, true,
- devlink);
- mlxsw_core->reload_fail = !!err;
+ return 0;
+}
- return err;
+static int
+mlxsw_devlink_core_bus_device_reload_up(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
+{
+ struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
+
+ return mlxsw_core_bus_device_register(mlxsw_core->bus_info,
+ mlxsw_core->bus,
+ mlxsw_core->bus_priv, true,
+ devlink);
}
static int mlxsw_devlink_flash_update(struct devlink *devlink,
@@ -1066,7 +1071,8 @@ mlxsw_devlink_trap_group_init(struct devlink *devlink,
}
static const struct devlink_ops mlxsw_devlink_ops = {
- .reload = mlxsw_devlink_core_bus_device_reload,
+ .reload_down = mlxsw_devlink_core_bus_device_reload_down,
+ .reload_up = mlxsw_devlink_core_bus_device_reload_up,
.port_type_set = mlxsw_devlink_port_type_set,
.port_split = mlxsw_devlink_port_split,
.port_unsplit = mlxsw_devlink_port_unsplit,
@@ -1243,7 +1249,7 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core,
{
struct devlink *devlink = priv_to_devlink(mlxsw_core);
- if (mlxsw_core->reload_fail) {
+ if (devlink_is_reload_failed(devlink)) {
if (!reload)
/* Only the parts that were not de-initialized in the
* failed reload attempt need to be de-initialized.
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 39cdb6c18ec0..7fba7b271a57 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -521,8 +521,14 @@ static void nsim_dev_traps_exit(struct devlink *devlink)
kfree(nsim_dev->trap_data);
}
-static int nsim_dev_reload(struct devlink *devlink,
- struct netlink_ext_ack *extack)
+static int nsim_dev_reload_down(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
+{
+ return 0;
+}
+
+static int nsim_dev_reload_up(struct devlink *devlink,
+ struct netlink_ext_ack *extack)
{
enum nsim_resource_id res_ids[] = {
NSIM_RESOURCE_IPV4_FIB, NSIM_RESOURCE_IPV4_FIB_RULES,
@@ -638,7 +644,8 @@ nsim_dev_devlink_trap_action_set(struct devlink *devlink,
}
static const struct devlink_ops nsim_dev_devlink_ops = {
- .reload = nsim_dev_reload,
+ .reload_down = nsim_dev_reload_down,
+ .reload_up = nsim_dev_reload_up,
.flash_update = nsim_dev_flash_update,
.trap_init = nsim_dev_devlink_trap_init,
.trap_action_set = nsim_dev_devlink_trap_action_set,
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 03e4d9244ff3..23e4b65ec9df 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -38,6 +38,7 @@ struct devlink {
struct device *dev;
possible_net_t _net;
struct mutex lock;
+ bool reload_failed;
char priv[0] __aligned(NETDEV_ALIGN);
};
@@ -642,7 +643,10 @@ enum devlink_trap_group_generic_id {
}
struct devlink_ops {
- int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack);
+ int (*reload_down)(struct devlink *devlink,
+ struct netlink_ext_ack *extack);
+ int (*reload_up)(struct devlink *devlink,
+ struct netlink_ext_ack *extack);
int (*port_type_set)(struct devlink_port *devlink_port,
enum devlink_port_type port_type);
int (*port_split)(struct devlink *devlink, unsigned int port_index,
@@ -942,6 +946,8 @@ void
devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
enum devlink_health_reporter_state state);
+bool devlink_is_reload_failed(const struct devlink *devlink);
+
void devlink_flash_update_begin_notify(struct devlink *devlink);
void devlink_flash_update_end_notify(struct devlink *devlink);
void devlink_flash_update_status_notify(struct devlink *devlink,
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 8da5365850cd..580b7a2e40e1 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -419,6 +419,8 @@ enum devlink_attr {
DEVLINK_ATTR_TRAP_METADATA, /* nested */
DEVLINK_ATTR_TRAP_GROUP_NAME, /* string */
+ DEVLINK_ATTR_RELOAD_FAILED, /* u8 0 or 1 */
+
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 4a2fb94c44cf..e48680efe54a 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -471,6 +471,8 @@ static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink,
if (devlink_nl_put_handle(msg, devlink))
goto nla_put_failure;
+ if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
return 0;
@@ -2672,12 +2674,32 @@ devlink_resources_validate(struct devlink *devlink,
return err;
}
+static bool devlink_reload_supported(struct devlink *devlink)
+{
+ return devlink->ops->reload_down && devlink->ops->reload_up;
+}
+
+static void devlink_reload_failed_set(struct devlink *devlink,
+ bool reload_failed)
+{
+ if (devlink->reload_failed == reload_failed)
+ return;
+ devlink->reload_failed = reload_failed;
+ devlink_notify(devlink, DEVLINK_CMD_NEW);
+}
+
+bool devlink_is_reload_failed(const struct devlink *devlink)
+{
+ return devlink->reload_failed;
+}
+EXPORT_SYMBOL_GPL(devlink_is_reload_failed);
+
static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
int err;
- if (!devlink->ops->reload)
+ if (!devlink_reload_supported(devlink))
return -EOPNOTSUPP;
err = devlink_resources_validate(devlink, NULL, info);
@@ -2685,7 +2707,12 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed");
return err;
}
- return devlink->ops->reload(devlink, info->extack);
+ err = devlink->ops->reload_down(devlink, info->extack);
+ if (err)
+ return err;
+ err = devlink->ops->reload_up(devlink, info->extack);
+ devlink_reload_failed_set(devlink, !!err);
+ return err;
}
static int devlink_nl_flash_update_fill(struct sk_buff *msg,
@@ -7150,7 +7177,7 @@ __devlink_param_driverinit_value_set(struct devlink *devlink,
int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
union devlink_param_value *init_val)
{
- if (!devlink->ops->reload)
+ if (!devlink_reload_supported(devlink))
return -EOPNOTSUPP;
return __devlink_param_driverinit_value_get(&devlink->param_list,
@@ -7197,7 +7224,7 @@ int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
{
struct devlink *devlink = devlink_port->devlink;
- if (!devlink->ops->reload)
+ if (!devlink_reload_supported(devlink))
return -EOPNOTSUPP;
return __devlink_param_driverinit_value_get(&devlink_port->param_list,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 14:38:29 +0000