linux/drivers/net/ethernet/sfc/ef100_netdev.c

// SPDX-License-Identifier: GPL-2.0-only
/****************************************************************************
 * Driver for Solarflare network controllers and boards
 * Copyright 2018 Solarflare Communications Inc.
 * Copyright 2019-2020 Xilinx Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, incorporated herein by reference.
 */
#include "net_driver.h"
#include "mcdi_port_common.h"
#include "mcdi_functions.h"
#include "efx_common.h"
#include "efx_channels.h"
#include "tx_common.h"
#include "ef100_netdev.h"
#include "ef100_ethtool.h"
#include "nic_common.h"
#include "ef100_nic.h"
#include "ef100_tx.h"
#include "ef100_regs.h"
#include "mcdi_filters.h"
#include "rx_common.h"
#include "ef100_sriov.h"
#include "tc_bindings.h"
#include "tc_encap_actions.h"
#include "efx_devlink.h"

static void ef100_update_name(struct efx_nic *efx)
{ … }

static int ef100_alloc_vis(struct efx_nic *efx, unsigned int *allocated_vis)
{ … }

static int ef100_remap_bar(struct efx_nic *efx, int max_vis)
{ … }

/* Context: process, rtnl_lock() held.
 * Note that the kernel will ignore our return code; this method
 * should really be a void.
 */
static int ef100_net_stop(struct net_device *net_dev)
{ … }

/* Context: process, rtnl_lock() held. */
static int ef100_net_open(struct net_device *net_dev)
{ … }

/* Initiate a packet transmission.  We use one channel per CPU
 * (sharing when we have more CPUs than channels).
 *
 * Context: non-blocking.
 * Note that returning anything other than NETDEV_TX_OK will cause the
 * OS to free the skb.
 */
static netdev_tx_t ef100_hard_start_xmit(struct sk_buff *skb,
					 struct net_device *net_dev)
{ … }

netdev_tx_t __ef100_hard_start_xmit(struct sk_buff *skb,
				    struct efx_nic *efx,
				    struct net_device *net_dev,
				    struct efx_rep *efv)
{ … }

static const struct net_device_ops ef100_netdev_ops = …;

/*	Netdev registration
 */
int ef100_netdev_event(struct notifier_block *this,
		       unsigned long event, void *ptr)
{ … }

static int ef100_netevent_event(struct notifier_block *this,
				unsigned long event, void *ptr)
{
	struct efx_nic *efx = container_of(this, struct efx_nic, netevent_notifier);
	struct ef100_nic_data *nic_data = efx->nic_data;
	int err;

	if (!nic_data->grp_mae)
		return NOTIFY_DONE;
	err = efx_tc_netevent_event(efx, event, ptr);
	if (err & NOTIFY_STOP_MASK)
		return err;

	return NOTIFY_DONE;
};

static int ef100_register_netdev(struct efx_nic *efx)
{ … }

static void ef100_unregister_netdev(struct efx_nic *efx)
{ … }

void ef100_remove_netdev(struct efx_probe_data *probe_data)
{ … }

int ef100_probe_netdev(struct efx_probe_data *probe_data)
{ … }