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 
14 int efx_init_io(struct efx_nic *efx, int bar, dma_addr_t dma_mask,
15 		unsigned int mem_map_size);
16 void efx_fini_io(struct efx_nic *efx);
17 int efx_init_struct(struct efx_nic *efx, struct pci_dev *pci_dev);
18 void efx_fini_struct(struct efx_nic *efx);
19 
20 #define EFX_MAX_DMAQ_SIZE 4096UL
21 #define EFX_DEFAULT_DMAQ_SIZE 1024UL
22 #define EFX_MIN_DMAQ_SIZE 512UL
23 
24 #define EFX_MAX_EVQ_SIZE 16384UL
25 #define EFX_MIN_EVQ_SIZE 512UL
26 
27 void efx_link_clear_advertising(struct efx_nic *efx);
28 void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
29 
30 void efx_start_all(struct efx_nic *efx);
31 void efx_stop_all(struct efx_nic *efx);
32 
33 void efx_net_stats(struct net_device *net_dev, struct rtnl_link_stats64 *stats);
34 
35 int efx_create_reset_workqueue(void);
36 void efx_queue_reset_work(struct efx_nic *efx);
37 void efx_flush_reset_workqueue(struct efx_nic *efx);
38 void efx_destroy_reset_workqueue(void);
39 
40 void efx_start_monitor(struct efx_nic *efx);
41 
42 int __efx_reconfigure_port(struct efx_nic *efx);
43 int efx_reconfigure_port(struct efx_nic *efx);
44 
45 #define EFX_ASSERT_RESET_SERIALISED(efx)				\
46 	do {								\
47 		if ((efx)->state != STATE_UNINIT &&			\
48 		    (efx)->state != STATE_PROBED)			\
49 			ASSERT_RTNL();					\
50 	} while (0)
51 
52 int efx_try_recovery(struct efx_nic *efx);
53 void efx_reset_down(struct efx_nic *efx, enum reset_type method);
54 void efx_watchdog(struct net_device *net_dev, unsigned int txqueue);
55 int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
56 int efx_reset(struct efx_nic *efx, enum reset_type method);
57 void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
58 
59 /* Dummy PHY ops for PHY drivers */
60 int efx_port_dummy_op_int(struct efx_nic *efx);
61 void efx_port_dummy_op_void(struct efx_nic *efx);
62 
63 static inline int efx_check_disabled(struct efx_nic *efx)
64 {
65 	if (efx->state == STATE_DISABLED || efx_recovering(efx->state)) {
66 		netif_err(efx, drv, efx->net_dev,
67 			  "device is disabled due to earlier errors\n");
68 		return -EIO;
69 	}
70 	return 0;
71 }
72 
73 static inline void efx_schedule_channel(struct efx_channel *channel)
74 {
75 	netif_vdbg(channel->efx, intr, channel->efx->net_dev,
76 		   "channel %d scheduling NAPI poll on CPU%d\n",
77 		   channel->channel, raw_smp_processor_id());
78 
79 	napi_schedule(&channel->napi_str);
80 }
81 
82 static inline void efx_schedule_channel_irq(struct efx_channel *channel)
83 {
84 	channel->event_test_cpu = raw_smp_processor_id();
85 	efx_schedule_channel(channel);
86 }
87 
88 #ifdef CONFIG_SFC_MCDI_LOGGING
89 void efx_init_mcdi_logging(struct efx_nic *efx);
90 void efx_fini_mcdi_logging(struct efx_nic *efx);
91 #else
92 static inline void efx_init_mcdi_logging(struct efx_nic *efx) {}
93 static inline void efx_fini_mcdi_logging(struct efx_nic *efx) {}
94 #endif
95 
96 void efx_mac_reconfigure(struct efx_nic *efx, bool mtu_only);
97 int efx_set_mac_address(struct net_device *net_dev, void *data);
98 void efx_set_rx_mode(struct net_device *net_dev);
99 int efx_set_features(struct net_device *net_dev, netdev_features_t data);
100 void efx_link_status_changed(struct efx_nic *efx);
101 unsigned int efx_xdp_max_mtu(struct efx_nic *efx);
102 int efx_change_mtu(struct net_device *net_dev, int new_mtu);
103 
104 extern const struct pci_error_handlers efx_err_handlers;
105 
106 netdev_features_t efx_features_check(struct sk_buff *skb, struct net_device *dev,
107 				     netdev_features_t features);
108 
109 int efx_get_phys_port_id(struct net_device *net_dev,
110 			 struct netdev_phys_item_id *ppid);
111 
112 int efx_get_phys_port_name(struct net_device *net_dev,
113 			   char *name, size_t len);
114 
115 void efx_detach_reps(struct efx_nic *efx);
116 void efx_attach_reps(struct efx_nic *efx);
117 #endif
118