1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3 
4 #ifndef __IXGBE_VF_H__
5 #define __IXGBE_VF_H__
6 
7 #include <linux/pci.h>
8 #include <linux/delay.h>
9 #include <linux/interrupt.h>
10 #include <linux/if_ether.h>
11 #include <linux/netdevice.h>
12 
13 #include "defines.h"
14 #include "regs.h"
15 #include "mbx.h"
16 
17 struct ixgbe_hw;
18 
19 struct ixgbe_mac_operations {
20 	s32 (*init_hw)(struct ixgbe_hw *);
21 	s32 (*reset_hw)(struct ixgbe_hw *);
22 	s32 (*start_hw)(struct ixgbe_hw *);
23 	s32 (*clear_hw_cntrs)(struct ixgbe_hw *);
24 	enum ixgbe_media_type (*get_media_type)(struct ixgbe_hw *);
25 	s32 (*get_mac_addr)(struct ixgbe_hw *, u8 *);
26 	s32 (*stop_adapter)(struct ixgbe_hw *);
27 	s32 (*get_bus_info)(struct ixgbe_hw *);
28 	s32 (*negotiate_api_version)(struct ixgbe_hw *hw, int api);
29 
30 	/* Link */
31 	s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool);
32 	s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool);
33 	s32 (*get_link_capabilities)(struct ixgbe_hw *, ixgbe_link_speed *,
34 				     bool *);
35 
36 	/* RAR, Multicast, VLAN */
37 	s32 (*set_rar)(struct ixgbe_hw *, u32, u8 *, u32);
38 	s32 (*set_uc_addr)(struct ixgbe_hw *, u32, u8 *);
39 	s32 (*init_rx_addrs)(struct ixgbe_hw *);
40 	s32 (*update_mc_addr_list)(struct ixgbe_hw *, struct net_device *);
41 	s32 (*update_xcast_mode)(struct ixgbe_hw *, int);
42 	s32 (*get_link_state)(struct ixgbe_hw *hw, bool *link_state);
43 	s32 (*enable_mc)(struct ixgbe_hw *);
44 	s32 (*disable_mc)(struct ixgbe_hw *);
45 	s32 (*clear_vfta)(struct ixgbe_hw *);
46 	s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool);
47 	s32 (*set_rlpml)(struct ixgbe_hw *, u16);
48 };
49 
50 enum ixgbe_mac_type {
51 	ixgbe_mac_unknown = 0,
52 	ixgbe_mac_82599_vf,
53 	ixgbe_mac_X540_vf,
54 	ixgbe_mac_X550_vf,
55 	ixgbe_mac_X550EM_x_vf,
56 	ixgbe_mac_x550em_a_vf,
57 	ixgbe_num_macs
58 };
59 
60 struct ixgbe_mac_info {
61 	struct ixgbe_mac_operations ops;
62 	u8 addr[6];
63 	u8 perm_addr[6];
64 
65 	enum ixgbe_mac_type type;
66 
67 	s32  mc_filter_type;
68 
69 	bool get_link_status;
70 	u32  max_tx_queues;
71 	u32  max_rx_queues;
72 	u32  max_msix_vectors;
73 };
74 
75 struct ixgbe_mbx_operations {
76 	s32 (*init_params)(struct ixgbe_hw *hw);
77 	void (*release)(struct ixgbe_hw *hw);
78 	s32 (*read)(struct ixgbe_hw *, u32 *, u16);
79 	s32 (*write)(struct ixgbe_hw *, u32 *, u16);
80 	s32 (*check_for_msg)(struct ixgbe_hw *);
81 	s32 (*check_for_ack)(struct ixgbe_hw *);
82 	s32 (*check_for_rst)(struct ixgbe_hw *);
83 };
84 
85 struct ixgbe_mbx_stats {
86 	u32 msgs_tx;
87 	u32 msgs_rx;
88 
89 	u32 acks;
90 	u32 reqs;
91 	u32 rsts;
92 };
93 
94 struct ixgbe_mbx_info {
95 	struct ixgbe_mbx_operations ops;
96 	struct ixgbe_mbx_stats stats;
97 	u32 timeout;
98 	u32 udelay;
99 	u32 vf_mailbox;
100 	u16 size;
101 };
102 
103 struct ixgbe_hw {
104 	void *back;
105 
106 	u8 __iomem *hw_addr;
107 
108 	struct ixgbe_mac_info mac;
109 	struct ixgbe_mbx_info mbx;
110 
111 	u16 device_id;
112 	u16 subsystem_vendor_id;
113 	u16 subsystem_device_id;
114 	u16 vendor_id;
115 
116 	u8  revision_id;
117 	bool adapter_stopped;
118 
119 	int api_version;
120 };
121 
122 struct ixgbevf_hw_stats {
123 	u64 base_vfgprc;
124 	u64 base_vfgptc;
125 	u64 base_vfgorc;
126 	u64 base_vfgotc;
127 	u64 base_vfmprc;
128 
129 	u64 last_vfgprc;
130 	u64 last_vfgptc;
131 	u64 last_vfgorc;
132 	u64 last_vfgotc;
133 	u64 last_vfmprc;
134 
135 	u64 vfgprc;
136 	u64 vfgptc;
137 	u64 vfgorc;
138 	u64 vfgotc;
139 	u64 vfmprc;
140 
141 	u64 saved_reset_vfgprc;
142 	u64 saved_reset_vfgptc;
143 	u64 saved_reset_vfgorc;
144 	u64 saved_reset_vfgotc;
145 	u64 saved_reset_vfmprc;
146 };
147 
148 struct ixgbevf_info {
149 	enum ixgbe_mac_type mac;
150 	const struct ixgbe_mac_operations *mac_ops;
151 };
152 
153 #define IXGBE_FAILED_READ_REG 0xffffffffU
154 
155 #define IXGBE_REMOVED(a) unlikely(!(a))
156 
157 static inline void ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 value)
158 {
159 	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
160 
161 	if (IXGBE_REMOVED(reg_addr))
162 		return;
163 	writel(value, reg_addr + reg);
164 }
165 
166 #define IXGBE_WRITE_REG(h, r, v) ixgbe_write_reg(h, r, v)
167 
168 u32 ixgbevf_read_reg(struct ixgbe_hw *hw, u32 reg);
169 #define IXGBE_READ_REG(h, r) ixgbevf_read_reg(h, r)
170 
171 static inline void ixgbe_write_reg_array(struct ixgbe_hw *hw, u32 reg,
172 					 u32 offset, u32 value)
173 {
174 	ixgbe_write_reg(hw, reg + (offset << 2), value);
175 }
176 
177 #define IXGBE_WRITE_REG_ARRAY(h, r, o, v) ixgbe_write_reg_array(h, r, o, v)
178 
179 static inline u32 ixgbe_read_reg_array(struct ixgbe_hw *hw, u32 reg,
180 				       u32 offset)
181 {
182 	return ixgbevf_read_reg(hw, reg + (offset << 2));
183 }
184 
185 #define IXGBE_READ_REG_ARRAY(h, r, o) ixgbe_read_reg_array(h, r, o)
186 
187 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
188 		       unsigned int *default_tc);
189 int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues);
190 int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key);
191 #endif /* __IXGBE_VF_H__ */
192