/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* include/net/devlink.h - Network physical device Netlink interface
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
*/
#ifndef _NET_DEVLINK_H_
#define _NET_DEVLINK_H_
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/refcount.h>
#include <net/net_namespace.h>
#include <net/flow_offload.h>
#include <uapi/linux/devlink.h>
#include <linux/xarray.h>
#define DEVLINK_RELOAD_STATS_ARRAY_SIZE \
(__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX)
struct devlink_dev_stats {
u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE];
u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE];
};
struct devlink_ops;
struct devlink {
struct list_head list;
struct list_head port_list;
struct list_head sb_list;
struct list_head dpipe_table_list;
struct list_head resource_list;
struct list_head param_list;
struct list_head region_list;
struct list_head reporter_list;
struct mutex reporters_lock; /* protects reporter_list */
struct devlink_dpipe_headers *dpipe_headers;
struct list_head trap_list;
struct list_head trap_group_list;
struct list_head trap_policer_list;
const struct devlink_ops *ops;
struct xarray snapshot_ids;
struct devlink_dev_stats stats;
struct device *dev;
possible_net_t _net;
struct mutex lock; /* Serializes access to devlink instance specific objects such as
* port, sb, dpipe, resource, params, region, traps and more.
*/
u8 reload_failed:1,
reload_enabled:1,
registered:1;
char priv[0] __aligned(NETDEV_ALIGN);
};
struct devlink_port_phys_attrs {
u32 port_number; /* Same value as "split group".
* A physical port which is visible to the user
* for a given port flavour.
*/
u32 split_subport_number; /* If the port is split, this is the number of subport. */
};
/**
* struct devlink_port_pci_pf_attrs - devlink port's PCI PF attributes
* @controller: Associated controller number
* @pf: Associated PCI PF number for this port.
* @external: when set, indicates if a port is for an external controller
*/
struct devlink_port_pci_pf_attrs {
u32 controller;
u16 pf;
u8 external:1;
};
/**
* struct devlink_port_pci_vf_attrs - devlink port's PCI VF attributes
* @controller: Associated controller number
* @pf: Associated PCI PF number for this port.
* @vf: Associated PCI VF for of the PCI PF for this port.
* @external: when set, indicates if a port is for an external controller
*/
struct devlink_port_pci_vf_attrs {
u32 controller;
u16 pf;
u16 vf;
u8 external:1;
};
/**
* struct devlink_port_attrs - devlink port object
* @flavour: flavour of the port
* @split: indicates if this is split port
* @splittable: indicates if the port can be split.
* @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
* @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
* @phys: physical port attributes
* @pci_pf: PCI PF port attributes
* @pci_vf: PCI VF port attributes
*/
struct devlink_port_attrs {
u8 split:1,
splittable:1;
u32 lanes;
enum devlink_port_flavour flavour;
struct netdev_phys_item_id switch_id;
union
| 