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84314fd4 JS |
1 | /* |
2 | * SCSI Transport Netlink Interface | |
3 | * Used for the posting of outbound SCSI transport events | |
4 | * | |
5 | * Copyright (C) 2006 James Smart, Emulex Corporation | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | #ifndef SCSI_NETLINK_H | |
23 | #define SCSI_NETLINK_H | |
24 | ||
25 | /* | |
26 | * This file intended to be included by both kernel and user space | |
27 | */ | |
28 | ||
29 | /* Single Netlink Message type to send all SCSI Transport messages */ | |
30 | #define SCSI_TRANSPORT_MSG NLMSG_MIN_TYPE + 1 | |
31 | ||
32 | /* SCSI Transport Broadcast Groups */ | |
33 | /* leaving groups 0 and 1 unassigned */ | |
34 | #define SCSI_NL_GRP_FC_EVENTS (1<<2) /* Group 2 */ | |
35 | #define SCSI_NL_GRP_CNT 3 | |
36 | ||
37 | ||
38 | /* SCSI_TRANSPORT_MSG event message header */ | |
39 | struct scsi_nl_hdr { | |
40 | uint8_t version; | |
41 | uint8_t transport; | |
42 | uint16_t magic; | |
43 | uint16_t msgtype; | |
44 | uint16_t msglen; | |
45 | } __attribute__((aligned(sizeof(uint64_t)))); | |
46 | ||
47 | /* scsi_nl_hdr->version value */ | |
48 | #define SCSI_NL_VERSION 1 | |
49 | ||
50 | /* scsi_nl_hdr->magic value */ | |
51 | #define SCSI_NL_MAGIC 0xA1B2 | |
52 | ||
53 | /* scsi_nl_hdr->transport value */ | |
54 | #define SCSI_NL_TRANSPORT 0 | |
55 | #define SCSI_NL_TRANSPORT_FC 1 | |
56 | #define SCSI_NL_MAX_TRANSPORTS 2 | |
57 | ||
58 | /* scsi_nl_hdr->msgtype values are defined in each transport */ | |
59 | ||
60 | ||
61 | /* | |
62 | * Vendor ID: | |
63 | * If transports post vendor-unique events, they must pass a well-known | |
64 | * 32-bit vendor identifier. This identifier consists of 8 bits indicating | |
65 | * the "type" of identifier contained, and 24 bits of id data. | |
66 | * | |
67 | * Identifiers for each type: | |
68 | * PCI : ID data is the 16 bit PCI Registered Vendor ID | |
69 | */ | |
70 | #define SCSI_NL_VID_ID_MASK 0x00FFFFFF | |
71 | #define SCSI_NL_VID_TYPE_MASK 0xFF000000 | |
72 | #define SCSI_NL_VID_TYPE_PCI 0x01000000 | |
73 | ||
74 | ||
75 | #define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen) \ | |
76 | { \ | |
77 | (hdr)->version = SCSI_NL_VERSION; \ | |
78 | (hdr)->transport = t; \ | |
79 | (hdr)->magic = SCSI_NL_MAGIC; \ | |
80 | (hdr)->msgtype = mtype; \ | |
81 | (hdr)->msglen = mlen; \ | |
82 | } | |
83 | ||
84 | ||
85 | #endif /* SCSI_NETLINK_H */ | |
86 |