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- /*
- * SCSI Transport Netlink Interface
- * Used for the posting of outbound SCSI transport events
- *
- * Copyright (C) 2006 James Smart, Emulex Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
- #ifndef SCSI_NETLINK_H
- #define SCSI_NETLINK_H
- /*
- * This file intended to be included by both kernel and user space
- */
- /* Single Netlink Message type to send all SCSI Transport messages */
- #define SCSI_TRANSPORT_MSG NLMSG_MIN_TYPE + 1
- /* SCSI Transport Broadcast Groups */
- /* leaving groups 0 and 1 unassigned */
- #define SCSI_NL_GRP_FC_EVENTS (1<<2) /* Group 2 */
- #define SCSI_NL_GRP_CNT 3
- /* SCSI_TRANSPORT_MSG event message header */
- struct scsi_nl_hdr {
- uint8_t version;
- uint8_t transport;
- uint16_t magic;
- uint16_t msgtype;
- uint16_t msglen;
- } __attribute__((aligned(sizeof(uint64_t))));
- /* scsi_nl_hdr->version value */
- #define SCSI_NL_VERSION 1
- /* scsi_nl_hdr->magic value */
- #define SCSI_NL_MAGIC 0xA1B2
- /* scsi_nl_hdr->transport value */
- #define SCSI_NL_TRANSPORT 0
- #define SCSI_NL_TRANSPORT_FC 1
- #define SCSI_NL_MAX_TRANSPORTS 2
- /* scsi_nl_hdr->msgtype values are defined in each transport */
- /*
- * Vendor ID:
- * If transports post vendor-unique events, they must pass a well-known
- * 32-bit vendor identifier. This identifier consists of 8 bits indicating
- * the "type" of identifier contained, and 24 bits of id data.
- *
- * Identifiers for each type:
- * PCI : ID data is the 16 bit PCI Registered Vendor ID
- */
- #define SCSI_NL_VID_TYPE_SHIFT 56
- #define SCSI_NL_VID_TYPE_MASK ((u64)0xFF << SCSI_NL_VID_TYPE_SHIFT)
- #define SCSI_NL_VID_TYPE_PCI ((u64)0x01 << SCSI_NL_VID_TYPE_SHIFT)
- #define SCSI_NL_VID_ID_MASK (~ SCSI_NL_VID_TYPE_MASK)
- #define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen) \
- { \
- (hdr)->version = SCSI_NL_VERSION; \
- (hdr)->transport = t; \
- (hdr)->magic = SCSI_NL_MAGIC; \
- (hdr)->msgtype = mtype; \
- (hdr)->msglen = mlen; \
- }
- #endif /* SCSI_NETLINK_H */
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