xref: /linux/include/uapi/scsi/scsi_netlink_fc.h (revision fcc8487d477a3452a1d0ccbdd4c5e0e1e3cb8bed)
1 /*
2  *  FC Transport Netlink Interface
3  *
4  *  Copyright (C) 2006   James Smart, Emulex Corporation
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21 #ifndef SCSI_NETLINK_FC_H
22 #define SCSI_NETLINK_FC_H
23 
24 #include <scsi/scsi_netlink.h>
25 
26 /*
27  * This file intended to be included by both kernel and user space
28  */
29 
30 /*
31  * FC Transport Message Types
32  */
33 	/* kernel -> user */
34 #define FC_NL_ASYNC_EVENT			0x0100
35 	/* user -> kernel */
36 /* none */
37 
38 
39 /*
40  * Message Structures :
41  */
42 
43 /* macro to round up message lengths to 8byte boundary */
44 #define FC_NL_MSGALIGN(len)		(((len) + 7) & ~7)
45 
46 
47 /*
48  * FC Transport Broadcast Event Message :
49  *   FC_NL_ASYNC_EVENT
50  *
51  * Note: if Vendor Unique message, &event_data will be  start of
52  * 	 vendor unique payload, and the length of the payload is
53  *       per event_datalen
54  *
55  * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
56  *   formatting requirements specified in scsi_netlink.h
57  */
58 struct fc_nl_event {
59 	struct scsi_nl_hdr snlh;		/* must be 1st element ! */
60 	uint64_t seconds;
61 	uint64_t vendor_id;
62 	uint16_t host_no;
63 	uint16_t event_datalen;
64 	uint32_t event_num;
65 	uint32_t event_code;
66 	uint32_t event_data;
67 } __attribute__((aligned(sizeof(uint64_t))));
68 
69 
70 #endif /* SCSI_NETLINK_FC_H */
71 
72