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
|
/*
* BSD LICENSE
*
* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Cavium, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LIO_MBOX_H_
#define _LIO_MBOX_H_
#include <stdint.h>
#include <rte_spinlock.h>
/* Macros for Mail Box Communication */
#define LIO_MBOX_DATA_MAX 32
#define LIO_VF_ACTIVE 0x1
#define LIO_VF_FLR_REQUEST 0x2
#define LIO_CORES_CRASHED 0x3
/* Macro for Read acknowledgment */
#define LIO_PFVFACK 0xffffffffffffffff
#define LIO_PFVFSIG 0x1122334455667788
#define LIO_PFVFERR 0xDEADDEADDEADDEAD
enum lio_mbox_cmd_status {
LIO_MBOX_STATUS_SUCCESS = 0,
LIO_MBOX_STATUS_FAILED = 1,
LIO_MBOX_STATUS_BUSY = 2
};
enum lio_mbox_message_type {
LIO_MBOX_REQUEST = 0,
LIO_MBOX_RESPONSE = 1
};
union lio_mbox_message {
uint64_t mbox_msg64;
struct {
uint16_t type : 1;
uint16_t resp_needed : 1;
uint16_t cmd : 6;
uint16_t len : 8;
uint8_t params[6];
} s;
};
typedef void (*lio_mbox_callback)(void *, void *, void *);
struct lio_mbox_cmd {
union lio_mbox_message msg;
uint64_t data[LIO_MBOX_DATA_MAX];
uint32_t q_no;
uint32_t recv_len;
uint32_t recv_status;
lio_mbox_callback fn;
void *fn_arg;
};
enum lio_mbox_state {
LIO_MBOX_STATE_IDLE = 1,
LIO_MBOX_STATE_REQ_RECEIVING = 2,
LIO_MBOX_STATE_REQ_RECEIVED = 4,
LIO_MBOX_STATE_RES_PENDING = 8,
LIO_MBOX_STATE_RES_RECEIVING = 16,
LIO_MBOX_STATE_RES_RECEIVED = 16,
LIO_MBOX_STATE_ERROR = 32
};
struct lio_mbox {
/* A spinlock to protect access to this q_mbox. */
rte_spinlock_t lock;
struct lio_device *lio_dev;
uint32_t q_no;
enum lio_mbox_state state;
/* SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
void *mbox_int_reg;
/* SLI_PKT_PF_VF_MBOX_SIG(0) for PF,
* SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
*/
void *mbox_write_reg;
/* SLI_PKT_PF_VF_MBOX_SIG(1) for PF,
* SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
*/
void *mbox_read_reg;
struct lio_mbox_cmd mbox_req;
struct lio_mbox_cmd mbox_resp;
};
int lio_mbox_read(struct lio_mbox *mbox);
int lio_mbox_write(struct lio_device *lio_dev,
struct lio_mbox_cmd *mbox_cmd);
int lio_mbox_process_message(struct lio_mbox *mbox);
#endif /* _LIO_MBOX_H_ */
|
