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

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2019-2021, Intel Corporation. */

#include "ice.h"
#include "ice_eswitch.h"
#include "devlink/devlink.h"
#include "devlink/devlink_port.h"
#include "ice_sriov.h"
#include "ice_tc_lib.h"
#include "ice_dcb_lib.h"

/**
 * ice_repr_inc_tx_stats - increment Tx statistic by one packet
 * @repr: repr to increment stats on
 * @len: length of the packet
 * @xmit_status: value returned by xmit function
 */
void ice_repr_inc_tx_stats(struct ice_repr *repr, unsigned int len,
			   int xmit_status)
{ … }

/**
 * ice_repr_inc_rx_stats - increment Rx statistic by one packet
 * @netdev: repr netdev to increment stats on
 * @len: length of the packet
 */
void ice_repr_inc_rx_stats(struct net_device *netdev, unsigned int len)
{ … }

/**
 * ice_repr_get_stats64 - get VF stats for VFPR use
 * @netdev: pointer to port representor netdev
 * @stats: pointer to struct where stats can be stored
 */
static void
ice_repr_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
{ … }

/**
 * ice_netdev_to_repr - Get port representor for given netdevice
 * @netdev: pointer to port representor netdev
 */
struct ice_repr *ice_netdev_to_repr(const struct net_device *netdev)
{ … }

/**
 * ice_repr_vf_open - Enable port representor's network interface
 * @netdev: network interface device structure
 *
 * The open entry point is called when a port representor's network
 * interface is made active by the system (IFF_UP). Corresponding
 * VF is notified about link status change.
 *
 * Returns 0 on success
 */
static int ice_repr_vf_open(struct net_device *netdev)
{ … }

static int ice_repr_sf_open(struct net_device *netdev)
{ … }

/**
 * ice_repr_vf_stop - Disable port representor's network interface
 * @netdev: network interface device structure
 *
 * The stop entry point is called when a port representor's network
 * interface is de-activated by the system. Corresponding
 * VF is notified about link status change.
 *
 * Returns 0 on success
 */
static int ice_repr_vf_stop(struct net_device *netdev)
{ … }

static int ice_repr_sf_stop(struct net_device *netdev)
{ … }

/**
 * ice_repr_sp_stats64 - get slow path stats for port representor
 * @dev: network interface device structure
 * @stats: netlink stats structure
 */
static int
ice_repr_sp_stats64(const struct net_device *dev,
		    struct rtnl_link_stats64 *stats)
{ … }

static bool
ice_repr_ndo_has_offload_stats(const struct net_device *dev, int attr_id)
{ … }

static int
ice_repr_ndo_get_offload_stats(int attr_id, const struct net_device *dev,
			       void *sp)
{ … }

static int
ice_repr_setup_tc_cls_flower(struct ice_repr *repr,
			     struct flow_cls_offload *flower)
{ … }

static int
ice_repr_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
			   void *cb_priv)
{ … }

static LIST_HEAD(ice_repr_block_cb_list);

static int
ice_repr_setup_tc(struct net_device *netdev, enum tc_setup_type type,
		  void *type_data)
{ … }

static const struct net_device_ops ice_repr_vf_netdev_ops = …;

static const struct net_device_ops ice_repr_sf_netdev_ops = …;

/**
 * ice_is_port_repr_netdev - Check if a given netdevice is a port representor netdev
 * @netdev: pointer to netdev
 */
bool ice_is_port_repr_netdev(const struct net_device *netdev)
{ … }

/**
 * ice_repr_reg_netdev - register port representor netdev
 * @netdev: pointer to port representor netdev
 * @ops: new ops for netdev
 */
static int
ice_repr_reg_netdev(struct net_device *netdev, const struct net_device_ops *ops)
{ … }

static int ice_repr_ready_vf(struct ice_repr *repr)
{ … }

static int ice_repr_ready_sf(struct ice_repr *repr)
{ … }

/**
 * ice_repr_destroy - remove representor from VF
 * @repr: pointer to representor structure
 */
void ice_repr_destroy(struct ice_repr *repr)
{ … }

static void ice_repr_rem_vf(struct ice_repr *repr)
{ … }

static void ice_repr_rem_sf(struct ice_repr *repr)
{ … }

static void ice_repr_set_tx_topology(struct ice_pf *pf, struct devlink *devlink)
{ … }

/**
 * ice_repr_create - add representor for generic VSI
 * @src_vsi: pointer to VSI structure of device to represent
 */
static struct ice_repr *ice_repr_create(struct ice_vsi *src_vsi)
{ … }

static int ice_repr_add_vf(struct ice_repr *repr)
{ … }

/**
 * ice_repr_create_vf - add representor for VF VSI
 * @vf: VF to create port representor on
 *
 * Set correct representor type for VF and functions pointer.
 *
 * Return: created port representor on success, error otherwise
 */
struct ice_repr *ice_repr_create_vf(struct ice_vf *vf)
{ … }

static int ice_repr_add_sf(struct ice_repr *repr)
{ … }

/**
 * ice_repr_create_sf - add representor for SF VSI
 * @sf: SF to create port representor on
 *
 * Set correct representor type for SF and functions pointer.
 *
 * Return: created port representor on success, error otherwise
 */
struct ice_repr *ice_repr_create_sf(struct ice_dynamic_port *sf)
{ … }

struct ice_repr *ice_repr_get(struct ice_pf *pf, u32 id)
{ … }

/**
 * ice_repr_start_tx_queues - start Tx queues of port representor
 * @repr: pointer to repr structure
 */
void ice_repr_start_tx_queues(struct ice_repr *repr)
{ … }

/**
 * ice_repr_stop_tx_queues - stop Tx queues of port representor
 * @repr: pointer to repr structure
 */
void ice_repr_stop_tx_queues(struct ice_repr *repr)
{ … }