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 /* iterator type for walking multicast address lists */
20 typedef u8* (*ixgbe_mc_addr_itr) (struct ixgbe_hw *hw, u8 **mc_addr_ptr,
21 				  u32 *vmdq);
22 struct ixgbe_mac_operations {
23 	s32 (*init_hw)(struct ixgbe_hw *);
24 	s32 (*reset_hw)(struct ixgbe_hw *);
25 	s32 (*start_hw)(struct ixgbe_hw *);
26 	s32 (*clear_hw_cntrs)(struct ixgbe_hw *);
27 	enum ixgbe_media_type (*get_media_type)(struct ixgbe_hw *);
28 	s32 (*get_mac_addr)(struct ixgbe_hw *, u8 *);
29 	s32 (*stop_adapter)(struct ixgbe_hw *);
30 	s32 (*get_bus_info)(struct ixgbe_hw *);
31 	s32 (*negotiate_api_version)(struct ixgbe_hw *hw, int api);
32 
33 	/* Link */
34 	s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool);
35 	s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool);
36 	s32 (*get_link_capabilities)(struct ixgbe_hw *, ixgbe_link_speed *,
37 				     bool *);
38 
39 	/* RAR, Multicast, VLAN */
40 	s32 (*set_rar)(struct ixgbe_hw *, u32, u8 *, u32);
41 	s32 (*set_uc_addr)(struct ixgbe_hw *, u32, u8 *);
42 	s32 (*init_rx_addrs)(struct ixgbe_hw *);
43 	s32 (*update_mc_addr_list)(struct ixgbe_hw *, struct net_device *);
44 	s32 (*update_xcast_mode)(struct ixgbe_hw *, int);
45 	s32 (*enable_mc)(struct ixgbe_hw *);
46 	s32 (*disable_mc)(struct ixgbe_hw *);
47 	s32 (*clear_vfta)(struct ixgbe_hw *);
48 	s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool);
49 	s32 (*set_rlpml)(struct ixgbe_hw *, u16);
50 };
51 
52 enum ixgbe_mac_type {
53 	ixgbe_mac_unknown = 0,
54 	ixgbe_mac_82599_vf,
55 	ixgbe_mac_X540_vf,
56 	ixgbe_mac_X550_vf,
57 	ixgbe_mac_X550EM_x_vf,
58 	ixgbe_mac_x550em_a_vf,
59 	ixgbe_num_macs
60 };
61 
62 struct ixgbe_mac_info {
63 	struct ixgbe_mac_operations ops;
64 	u8 addr[6];
65 	u8 perm_addr[6];
66 
67 	enum ixgbe_mac_type type;
68 
69 	s32  mc_filter_type;
70 
71 	bool get_link_status;
72 	u32  max_tx_queues;
73 	u32  max_rx_queues;
74 	u32  max_msix_vectors;
75 };
76 
77 struct ixgbe_mbx_operations {
78 	s32 (*init_params)(struct ixgbe_hw *hw);
79 	s32 (*read)(struct ixgbe_hw *, u32 *, u16);
80 	s32 (*write)(struct ixgbe_hw *, u32 *, u16);
81 	s32 (*read_posted)(struct ixgbe_hw *, u32 *, u16);
82 	s32 (*write_posted)(struct ixgbe_hw *, u32 *, u16);
83 	s32 (*check_for_msg)(struct ixgbe_hw *);
84 	s32 (*check_for_ack)(struct ixgbe_hw *);
85 	s32 (*check_for_rst)(struct ixgbe_hw *);
86 };
87 
88 struct ixgbe_mbx_stats {
89 	u32 msgs_tx;
90 	u32 msgs_rx;
91 
92 	u32 acks;
93 	u32 reqs;
94 	u32 rsts;
95 };
96 
97 struct ixgbe_mbx_info {
98 	struct ixgbe_mbx_operations ops;
99 	struct ixgbe_mbx_stats stats;
100 	u32 timeout;
101 	u32 udelay;
102 	u32 v2p_mailbox;
103 	u16 size;
104 };
105 
106 struct ixgbe_hw {
107 	void *back;
108 
109 	u8 __iomem *hw_addr;
110 
111 	struct ixgbe_mac_info mac;
112 	struct ixgbe_mbx_info mbx;
113 
114 	u16 device_id;
115 	u16 subsystem_vendor_id;
116 	u16 subsystem_device_id;
117 	u16 vendor_id;
118 
119 	u8  revision_id;
120 	bool adapter_stopped;
121 
122 	int api_version;
123 };
124 
125 struct ixgbevf_hw_stats {
126 	u64 base_vfgprc;
127 	u64 base_vfgptc;
128 	u64 base_vfgorc;
129 	u64 base_vfgotc;
130 	u64 base_vfmprc;
131 
132 	u64 last_vfgprc;
133 	u64 last_vfgptc;
134 	u64 last_vfgorc;
135 	u64 last_vfgotc;
136 	u64 last_vfmprc;
137 
138 	u64 vfgprc;
139 	u64 vfgptc;
140 	u64 vfgorc;
141 	u64 vfgotc;
142 	u64 vfmprc;
143 
144 	u64 saved_reset_vfgprc;
145 	u64 saved_reset_vfgptc;
146 	u64 saved_reset_vfgorc;
147 	u64 saved_reset_vfgotc;
148 	u64 saved_reset_vfmprc;
149 };
150 
151 struct ixgbevf_info {
152 	enum ixgbe_mac_type mac;
153 	const struct ixgbe_mac_operations *mac_ops;
154 };
155 
156 #define IXGBE_FAILED_READ_REG 0xffffffffU
157 
158 #define IXGBE_REMOVED(a) unlikely(!(a))
159 
160 static inline void ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 value)
161 {
162 	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
163 
164 	if (IXGBE_REMOVED(reg_addr))
165 		return;
166 	writel(value, reg_addr + reg);
167 }
168 
169 #define IXGBE_WRITE_REG(h, r, v) ixgbe_write_reg(h, r, v)
170 
171 u32 ixgbevf_read_reg(struct ixgbe_hw *hw, u32 reg);
172 #define IXGBE_READ_REG(h, r) ixgbevf_read_reg(h, r)
173 
174 static inline void ixgbe_write_reg_array(struct ixgbe_hw *hw, u32 reg,
175 					 u32 offset, u32 value)
176 {
177 	ixgbe_write_reg(hw, reg + (offset << 2), value);
178 }
179 
180 #define IXGBE_WRITE_REG_ARRAY(h, r, o, v) ixgbe_write_reg_array(h, r, o, v)
181 
182 static inline u32 ixgbe_read_reg_array(struct ixgbe_hw *hw, u32 reg,
183 				       u32 offset)
184 {
185 	return ixgbevf_read_reg(hw, reg + (offset << 2));
186 }
187 
188 #define IXGBE_READ_REG_ARRAY(h, r, o) ixgbe_read_reg_array(h, r, o)
189 
190 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
191 		       unsigned int *default_tc);
192 int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues);
193 int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key);
194 #endif /* __IXGBE_VF_H__ */
195