linux/drivers/net/ethernet/intel/ice/ice_sf_eth.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024, Intel Corporation. */
#include "ice.h"
#include "ice_lib.h"
#include "ice_txrx.h"
#include "ice_fltr.h"
#include "ice_sf_eth.h"
#include "devlink/devlink_port.h"
#include "devlink/devlink.h"

static const struct net_device_ops ice_sf_netdev_ops = …;

/**
 * ice_sf_cfg_netdev - Allocate, configure and register a netdev
 * @dyn_port: subfunction associated with configured netdev
 * @devlink_port: subfunction devlink port to be linked with netdev
 *
 * Return: 0 on success, negative value on failure
 */
static int ice_sf_cfg_netdev(struct ice_dynamic_port *dyn_port,
			     struct devlink_port *devlink_port)
{ … }

static void ice_sf_decfg_netdev(struct ice_vsi *vsi)
{ … }

/**
 * ice_sf_dev_probe - subfunction driver probe function
 * @adev: pointer to the auxiliary device
 * @id: pointer to the auxiliary_device id
 *
 * Configure VSI and netdev resources for the subfunction device.
 *
 * Return: zero on success or an error code on failure.
 */
static int ice_sf_dev_probe(struct auxiliary_device *adev,
			    const struct auxiliary_device_id *id)
{ … }

/**
 * ice_sf_dev_remove - subfunction driver remove function
 * @adev: pointer to the auxiliary device
 *
 * Deinitalize VSI and netdev resources for the subfunction device.
 */
static void ice_sf_dev_remove(struct auxiliary_device *adev)
{ … }

static const struct auxiliary_device_id ice_sf_dev_id_table[] = …;

MODULE_DEVICE_TABLE(auxiliary, ice_sf_dev_id_table);

static struct auxiliary_driver ice_sf_driver = …;

static DEFINE_XARRAY_ALLOC1(ice_sf_aux_id);

/**
 * ice_sf_driver_register - Register new auxiliary subfunction driver
 *
 * Return: zero on success or an error code on failure.
 */
int ice_sf_driver_register(void)
{ … }

/**
 * ice_sf_driver_unregister - Unregister new auxiliary subfunction driver
 *
 */
void ice_sf_driver_unregister(void)
{ … }

/**
 * ice_sf_dev_release - Release device associated with auxiliary device
 * @device: pointer to the device
 *
 * Since most of the code for subfunction deactivation is handled in
 * the remove handler, here just free tracking resources.
 */
static void ice_sf_dev_release(struct device *device)
{ … }

/**
 * ice_sf_eth_activate - Activate Ethernet subfunction port
 * @dyn_port: the dynamic port instance for this subfunction
 * @extack: extack for reporting error messages
 *
 * Activate the dynamic port as an Ethernet subfunction. Setup the netdev
 * resources associated and initialize the auxiliary device.
 *
 * Return: zero on success or an error code on failure.
 */
int
ice_sf_eth_activate(struct ice_dynamic_port *dyn_port,
		    struct netlink_ext_ack *extack)
{ … }

/**
 * ice_sf_eth_deactivate - Deactivate Ethernet subfunction port
 * @dyn_port: the dynamic port instance for this subfunction
 *
 * Deactivate the Ethernet subfunction, removing its auxiliary device and the
 * associated resources.
 */
void ice_sf_eth_deactivate(struct ice_dynamic_port *dyn_port)
{ … }