mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
ee7afd717c
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
124 lines
3.5 KiB
C
124 lines
3.5 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
|
|
|
|
#include <linux/netlink.h>
|
|
#include <linux/types.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
|
|
|
|
/* Transport-based scsi_nl_hdr->msgtype values are defined in each transport */
|
|
|
|
/*
|
|
* GENERIC SCSI scsi_nl_hdr->msgtype Values
|
|
*/
|
|
/* kernel -> user */
|
|
#define SCSI_NL_SHOST_VENDOR 0x0001
|
|
/* user -> kernel */
|
|
/* SCSI_NL_SHOST_VENDOR msgtype is kernel->user and user->kernel */
|
|
|
|
|
|
/*
|
|
* Message Structures :
|
|
*/
|
|
|
|
/* macro to round up message lengths to 8byte boundary */
|
|
#define SCSI_NL_MSGALIGN(len) (((len) + 7) & ~7)
|
|
|
|
|
|
/*
|
|
* SCSI HOST Vendor Unique messages :
|
|
* SCSI_NL_SHOST_VENDOR
|
|
*
|
|
* Note: The Vendor Unique message payload will begin directly after
|
|
* this structure, with the length of the payload per vmsg_datalen.
|
|
*
|
|
* Note: When specifying vendor_id, be sure to read the Vendor Type and ID
|
|
* formatting requirements specified below
|
|
*/
|
|
struct scsi_nl_host_vendor_msg {
|
|
struct scsi_nl_hdr snlh; /* must be 1st element ! */
|
|
uint64_t vendor_id;
|
|
uint16_t host_no;
|
|
uint16_t vmsg_datalen;
|
|
} __attribute__((aligned(sizeof(uint64_t))));
|
|
|
|
|
|
/*
|
|
* 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 */
|
|
|