1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2013 - 2018 Intel Corporation. */
#ifndef _I40E_CLIENT_H_
#define _I40E_CLIENT_H_
#include <linux/auxiliary_bus.h>
#define I40E_CLIENT_STR_LENGTH 10
/* Client interface version should be updated anytime there is a change in the
* existing APIs or data structures.
*/
#define I40E_CLIENT_VERSION_MAJOR 0
#define I40E_CLIENT_VERSION_MINOR 01
#define I40E_CLIENT_VERSION_BUILD 00
#define I40E_CLIENT_VERSION_STR \
__stringify(I40E_CLIENT_VERSION_MAJOR) "." \
__stringify(I40E_CLIENT_VERSION_MINOR) "." \
__stringify(I40E_CLIENT_VERSION_BUILD)
struct i40e_client_version {
u8 major;
u8 minor;
u8 build;
u8 rsvd;
};
enum i40e_client_state {
__I40E_CLIENT_NULL,
__I40E_CLIENT_REGISTERED
};
enum i40e_client_instance_state {
__I40E_CLIENT_INSTANCE_NONE,
__I40E_CLIENT_INSTANCE_OPENED,
};
struct i40e_ops;
struct i40e_client;
#define I40E_QUEUE_INVALID_IDX 0xFFFF
struct i40e_qv_info {
u32 v_idx; /* msix_vector */
u16 ceq_idx;
u16 aeq_idx;
u8 itr_idx;
};
struct i40e_qvlist_info {
u32 num_vectors;
struct i40e_qv_info qv_info[];
};
/* set of LAN parameters useful for clients managed by LAN */
/* Struct to hold per priority info */
struct i40e_prio_qos_params {
u16 qs_handle; /* qs handle for prio */
u8 tc; /* TC mapped to prio */
u8 reserved;
};
#define I40E_CLIENT_MAX_USER_PRIORITY 8
/* Struct to hold Client QoS */
struct i40e_qos_params {
struct i40e_prio_qos_params prio_qos[I40E_CLIENT_MAX_USER_PRIORITY];
};
struct i40e_params {
struct i40e_qos_params qos;
u16 mtu;
};
/* Structure to hold Lan device info for a client device */
struct i40e_info {
struct i40e_client_version version;
u8 lanmac[6];
struct net_device *netdev;
struct pci_dev *pcidev;
struct auxiliary_device *aux_dev;
u8 __iomem *hw_addr;
u8 fid; /* function id, PF id or VF id */
#define I40E_CLIENT_FTYPE_PF 0
u8 ftype; /* function type, PF or VF */
void *pf;
/* All L2 params that could change during the life span of the PF
* and needs to be communicated to the client when they change
*/
struct i40e_qvlist_info *qvlist_info;
struct i40e_params params;
struct i40e_ops *ops;
u16 msix_count; /* number of msix vectors*/
/* Array down below will be dynamically allocated based on msix_count */
struct msix_entry *msix_entries;
u16 itr_index; /* Which ITR index the PE driver is suppose to use */
u16 fw_maj_ver; /* firmware major version */
u16 fw_min_ver; /* firmware minor version */
u32 fw_build; /* firmware build number */
};
struct i40e_auxiliary_device {
struct auxiliary_device aux_dev;
struct i40e_info *ldev;
};
#define I40E_CLIENT_RESET_LEVEL_PF 1
#define I40E_CLIENT_RESET_LEVEL_CORE 2
#define I40E_CLIENT_VSI_FLAG_TCP_ENABLE BIT(1)
struct i40e_ops {
/* setup_q_vector_list enables queues with a particular vector */
int (*setup_qvlist)(struct i40e_info *ldev, struct i40e_client *client,
struct i40e_qvlist_info *qv_info);
int (*virtchnl_send)(struct i40e_info *ldev, struct i40e_client *client,
u32 vf_id, u8 *msg, u16 len);
/* If the PE Engine is unresponsive, RDMA driver can request a reset.
* The level helps determine the level of reset being requested.
*/
void (*request_reset)(struct i40e_info *ldev,
struct i40e_client *client, u32 level);
/* API for the RDMA driver to set certain VSI flags that control
* PE Engine.
*/
int (*update_vsi_ctxt)(struct i40e_info *ldev,
struct i40e_client *client,
bool is_vf, u32 vf_id,
u32 flag, u32 valid_flag);
};
struct i40e_client_ops {
/* Should be called from register_client() or whenever PF is ready
* to create a specific client instance.
*/
int (*open)(struct i40e_info *ldev, struct i40e_client *client);
/* Should be called when netdev is unavailable or when unregister
* call comes in. If the close is happenening due to a reset being
* triggered set the reset bit to true.
*/
void (*close)(struct i40e_info *ldev, struct i40e_client *client,
bool reset);
/* called when some l2 managed parameters changes - mtu */
void (*l2_param_change)(struct i40e_info *ldev,
struct i40e_client *client,
struct i40e_params *params);
int (*virtchnl_receive)(struct i40e_info *ldev,
struct i40e_client *client, u32 vf_id,
u8 *msg, u16 len);
/* called when a VF is reset by the PF */
void (*vf_reset)(struct i40e_info *ldev,
struct i40e_client *client, u32 vf_id);
/* called when the number of VFs changes */
void (*vf_enable)(struct i40e_info *ldev,
struct i40e_client *client, u32 num_vfs);
/* returns true if VF is capable of specified offload */
int (*vf_capable)(struct i40e_info *ldev,
struct i40e_client *client, u32 vf_id);
};
/* Client device */
struct i40e_client_instance {
struct list_head list;
struct i40e_info lan_info;
struct i40e_client *client;
unsigned long state;
};
struct i40e_client {
struct list_head list; /* list of registered clients */
char name[I40E_CLIENT_STR_LENGTH];
struct i40e_client_version version;
unsigned long state; /* client state */
atomic_t ref_cnt; /* Count of all the client devices of this kind */
u32 flags;
u8 type;
#define I40E_CLIENT_IWARP 0
const struct i40e_client_ops *ops; /* client ops provided by the client */
};
static inline bool i40e_client_is_registered(struct i40e_client *client)
{
return test_bit(__I40E_CLIENT_REGISTERED, &client->state);
}
void i40e_client_device_register(struct i40e_info *ldev, struct i40e_client *client);
void i40e_client_device_unregister(struct i40e_info *ldev);
#endif /* _I40E_CLIENT_H_ */
|
