LXR linux/drivers/net/ethernet/sfc/efx

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/****************************************************************************
   3 * Driver for Solarflare network controllers and boards
   4 * Copyright 2018 Solarflare Communications Inc.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms of the GNU General Public License version 2 as published
   8 * by the Free Software Foundation, incorporated herein by reference.
   9 */
  10
  11#ifndef EFX_COMMON_H
  12#define EFX_COMMON_H
  13
  14int efx_init_io(struct efx_nic *efx, int bar, dma_addr_t dma_mask,
  15                unsigned int mem_map_size);
  16void efx_fini_io(struct efx_nic *efx);
  17int efx_init_struct(struct efx_nic *efx, struct pci_dev *pci_dev,
  18                    struct net_device *net_dev);
  19void efx_fini_struct(struct efx_nic *efx);
  20
  21#define EFX_MAX_DMAQ_SIZE 4096UL
  22#define EFX_DEFAULT_DMAQ_SIZE 1024UL
  23#define EFX_MIN_DMAQ_SIZE 512UL
  24
  25#define EFX_MAX_EVQ_SIZE 16384UL
  26#define EFX_MIN_EVQ_SIZE 512UL
  27
  28void efx_link_clear_advertising(struct efx_nic *efx);
  29void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
  30
  31void efx_start_all(struct efx_nic *efx);
  32void efx_stop_all(struct efx_nic *efx);
  33
  34void efx_net_stats(struct net_device *net_dev, struct rtnl_link_stats64 *stats);
  35
  36int efx_create_reset_workqueue(void);
  37void efx_queue_reset_work(struct efx_nic *efx);
  38void efx_flush_reset_workqueue(struct efx_nic *efx);
  39void efx_destroy_reset_workqueue(void);
  40
  41void efx_start_monitor(struct efx_nic *efx);
  42
  43int __efx_reconfigure_port(struct efx_nic *efx);
  44int efx_reconfigure_port(struct efx_nic *efx);
  45
  46#define EFX_ASSERT_RESET_SERIALISED(efx)                \
  47        do {                                            \
  48                if ((efx->state == STATE_READY) ||      \
  49                    (efx->state == STATE_RECOVERY) ||   \
  50                    (efx->state == STATE_DISABLED))     \
  51                        ASSERT_RTNL();                  \
  52        } while (0)
  53
  54int efx_try_recovery(struct efx_nic *efx);
  55void efx_reset_down(struct efx_nic *efx, enum reset_type method);
  56void efx_watchdog(struct net_device *net_dev, unsigned int txqueue);
  57int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
  58int efx_reset(struct efx_nic *efx, enum reset_type method);
  59void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
  60
  61/* Dummy PHY ops for PHY drivers */
  62int efx_port_dummy_op_int(struct efx_nic *efx);
  63void efx_port_dummy_op_void(struct efx_nic *efx);
  64
  65static inline int efx_check_disabled(struct efx_nic *efx)
  66{
  67        if (efx->state == STATE_DISABLED || efx->state == STATE_RECOVERY) {
  68                netif_err(efx, drv, efx->net_dev,
  69                          "device is disabled due to earlier errors\n");
  70                return -EIO;
  71        }
  72        return 0;
  73}
  74
  75static inline void efx_schedule_channel(struct efx_channel *channel)
  76{
  77        netif_vdbg(channel->efx, intr, channel->efx->net_dev,
  78                   "channel %d scheduling NAPI poll on CPU%d\n",
  79                   channel->channel, raw_smp_processor_id());
  80
  81        napi_schedule(&channel->napi_str);
  82}
  83
  84static inline void efx_schedule_channel_irq(struct efx_channel *channel)
  85{
  86        channel->event_test_cpu = raw_smp_processor_id();
  87        efx_schedule_channel(channel);
  88}
  89
  90#ifdef CONFIG_SFC_MCDI_LOGGING
  91void efx_init_mcdi_logging(struct efx_nic *efx);
  92void efx_fini_mcdi_logging(struct efx_nic *efx);
  93#else
  94static inline void efx_init_mcdi_logging(struct efx_nic *efx) {}
  95static inline void efx_fini_mcdi_logging(struct efx_nic *efx) {}
  96#endif
  97
  98void efx_mac_reconfigure(struct efx_nic *efx, bool mtu_only);
  99int efx_set_mac_address(struct net_device *net_dev, void *data);
 100void efx_set_rx_mode(struct net_device *net_dev);
 101int efx_set_features(struct net_device *net_dev, netdev_features_t data);
 102void efx_link_status_changed(struct efx_nic *efx);
 103unsigned int efx_xdp_max_mtu(struct efx_nic *efx);
 104int efx_change_mtu(struct net_device *net_dev, int new_mtu);
 105
 106extern const struct pci_error_handlers efx_err_handlers;
 107
 108netdev_features_t efx_features_check(struct sk_buff *skb, struct net_device *dev,
 109                                     netdev_features_t features);
 110
 111int efx_get_phys_port_id(struct net_device *net_dev,
 112                         struct netdev_phys_item_id *ppid);
 113
 114int efx_get_phys_port_name(struct net_device *net_dev,
 115                           char *name, size_t len);
 116#endif
 117