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
|
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2013 - 2018 Intel Corporation. */
#ifndef _I40EVF_CLIENT_H_
#define _I40EVF_CLIENT_H_
#define I40EVF_CLIENT_STR_LENGTH 10
/* Client interface version should be updated anytime there is a change in the
* existing APIs or data structures.
*/
#define I40EVF_CLIENT_VERSION_MAJOR 0
#define I40EVF_CLIENT_VERSION_MINOR 01
#define I40EVF_CLIENT_VERSION_BUILD 00
#define I40EVF_CLIENT_VERSION_STR \
__stringify(I40EVF_CLIENT_VERSION_MAJOR) "." \
__stringify(I40EVF_CLIENT_VERSION_MINOR) "." \
__stringify(I40EVF_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;
/* HW does not define a type value for AEQ; only for RX/TX and CEQ.
* In order for us to keep the interface simple, SW will define a
* unique type value for AEQ.
*/
#define I40E_QUEUE_TYPE_PE_AEQ 0x80
#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[1];
};
#define I40E_CLIENT_MSIX_ALL 0xFFFFFFFF
/* 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;
u16 link_up; /* boolean */
};
/* 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;
u8 __iomem *hw_addr;
u8 fid; /* function id, PF id or VF id */
#define I40E_CLIENT_FTYPE_PF 0
#define I40E_CLIENT_FTYPE_VF 1
u8 ftype; /* function type, PF or VF */
void *vf; /* cast to i40evf_adapter */
/* All L2 params that could change during the life span of the device
* and needs to be communicated to the client when they change
*/
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 */
};
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);
u32 (*virtchnl_send)(struct i40e_info *ldev, struct i40e_client *client,
u8 *msg, u16 len);
/* If the PE Engine is unresponsive, RDMA driver can request a reset.*/
void (*request_reset)(struct i40e_info *ldev,
struct i40e_client *client);
};
struct i40e_client_ops {
/* Should be called from register_client() or whenever the driver is
* ready to create a specific client instance.
*/
int (*open)(struct i40e_info *ldev, struct i40e_client *client);
/* Should be closed when netdev is unavailable or when unregister
* call comes in. If the close happens due to a reset, 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 - mss */
void (*l2_param_change)(struct i40e_info *ldev,
struct i40e_client *client,
struct i40e_params *params);
/* called when a message is received from the PF */
int (*virtchnl_receive)(struct i40e_info *ldev,
struct i40e_client *client,
u8 *msg, u16 len);
};
/* 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[I40EVF_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;
#define I40E_CLIENT_FLAGS_LAUNCH_ON_PROBE BIT(0)
#define I40E_TX_FLAGS_NOTIFY_OTHER_EVENTS BIT(2)
u8 type;
#define I40E_CLIENT_IWARP 0
struct i40e_client_ops *ops; /* client ops provided by the client */
};
/* used by clients */
int i40evf_register_client(struct i40e_client *client);
int i40evf_unregister_client(struct i40e_client *client);
#endif /* _I40EVF_CLIENT_H_ */
|
