mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
f14e2e29cd
During discussions with Mike Christie, I became convinced that we needed a larger vendor id. This patch extends the id from 32 to 64 bits. This applies on top of the prior patches that add SCSI transport events via netlink. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
|
|
* 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 */
|
|
|