1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#ifndef SCSI_NETLINK_H
23#define SCSI_NETLINK_H
24
25#include <linux/netlink.h>
26
27
28
29
30
31
32
33#define SCSI_TRANSPORT_MSG NLMSG_MIN_TYPE + 1
34
35
36
37#define SCSI_NL_GRP_FC_EVENTS (1<<2)
38#define SCSI_NL_GRP_CNT 3
39
40
41
42struct scsi_nl_hdr {
43 uint8_t version;
44 uint8_t transport;
45 uint16_t magic;
46 uint16_t msgtype;
47 uint16_t msglen;
48} __attribute__((aligned(sizeof(uint64_t))));
49
50
51#define SCSI_NL_VERSION 1
52
53
54#define SCSI_NL_MAGIC 0xA1B2
55
56
57#define SCSI_NL_TRANSPORT 0
58#define SCSI_NL_TRANSPORT_FC 1
59#define SCSI_NL_MAX_TRANSPORTS 2
60
61
62
63
64
65
66
67#define SCSI_NL_SHOST_VENDOR 0x0001
68
69
70
71
72
73
74
75
76
77#define SCSI_NL_MSGALIGN(len) (((len) + 7) & ~7)
78
79
80
81
82
83
84
85
86
87
88
89
90struct scsi_nl_host_vendor_msg {
91 struct scsi_nl_hdr snlh;
92 uint64_t vendor_id;
93 uint16_t host_no;
94 uint16_t vmsg_datalen;
95} __attribute__((aligned(sizeof(uint64_t))));
96
97
98
99
100
101
102
103
104
105
106
107#define SCSI_NL_VID_TYPE_SHIFT 56
108#define SCSI_NL_VID_TYPE_MASK ((__u64)0xFF << SCSI_NL_VID_TYPE_SHIFT)
109#define SCSI_NL_VID_TYPE_PCI ((__u64)0x01 << SCSI_NL_VID_TYPE_SHIFT)
110#define SCSI_NL_VID_ID_MASK (~ SCSI_NL_VID_TYPE_MASK)
111
112
113#define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen) \
114 { \
115 (hdr)->version = SCSI_NL_VERSION; \
116 (hdr)->transport = t; \
117 (hdr)->magic = SCSI_NL_MAGIC; \
118 (hdr)->msgtype = mtype; \
119 (hdr)->msglen = mlen; \
120 }
121
122
123#ifdef __KERNEL__
124
125#include <scsi/scsi_host.h>
126
127
128int scsi_nl_add_transport(u8 tport,
129 int (*msg_handler)(struct sk_buff *),
130 void (*event_handler)(struct notifier_block *, unsigned long, void *));
131void scsi_nl_remove_transport(u8 tport);
132
133int scsi_nl_add_driver(u64 vendor_id, struct scsi_host_template *hostt,
134 int (*nlmsg_handler)(struct Scsi_Host *shost, void *payload,
135 u32 len, u32 pid),
136 void (*nlevt_handler)(struct notifier_block *nb,
137 unsigned long event, void *notify_ptr));
138void scsi_nl_remove_driver(u64 vendor_id);
139
140void scsi_nl_send_transport_msg(u32 pid, struct scsi_nl_hdr *hdr);
141int scsi_nl_send_vendor_msg(u32 pid, unsigned short host_no, u64 vendor_id,
142 char *data_buf, u32 data_len);
143
144#endif
145
146#endif
147
148