projects / linux-2.6 / blame
| Commit | Line | Data |
|---|---|---|
| 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 | */ | |
| f14e2e29 JS |
70 | #define SCSI_NL_VID_TYPE_SHIFT 56 |
| 71 | #define SCSI_NL_VID_TYPE_MASK ((u64)0xFF << SCSI_NL_VID_TYPE_SHIFT) | |
| 72 | #define SCSI_NL_VID_TYPE_PCI ((u64)0x01 << SCSI_NL_VID_TYPE_SHIFT) | |
| 73 | #define SCSI_NL_VID_ID_MASK (~ SCSI_NL_VID_TYPE_MASK) | |
| 84314fd4 JS |
74 | |
| 75 | ||
| 76 | #define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen) \ | |
| 77 | { \ | |
| 78 | (hdr)->version = SCSI_NL_VERSION; \ | |
| 79 | (hdr)->transport = t; \ | |
| 80 | (hdr)->magic = SCSI_NL_MAGIC; \ | |
| 81 | (hdr)->msgtype = mtype; \ | |
| 82 | (hdr)->msglen = mlen; \ | |
| 83 | } | |
| 84 | ||
| 85 | ||
| 86 | #endif /* SCSI_NETLINK_H */ | |
| 87 |