include/uapi/scsi/scsi_netlink_fc.h

   1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
   2 /*
   3  *  FC Transport Netlink Interface
   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_FC_H
  23 #define SCSI_NETLINK_FC_H
  24
  25 #include <scsi/scsi_netlink.h>
  26
  27 /*
  28  * This file intended to be included by both kernel and user space
  29  */
  30
  31 /*
  32  * FC Transport Message Types
  33  */
  34         /* kernel -> user */
  35 #define FC_NL_ASYNC_EVENT                       0x0100
  36         /* user -> kernel */
  37 /* none */
  38
  39
  40 /*
  41  * Message Structures :
  42  */
  43
  44 /* macro to round up message lengths to 8byte boundary */
  45 #define FC_NL_MSGALIGN(len)             (((len) + 7) & ~7)
  46
  47
  48 /*
  49  * FC Transport Broadcast Event Message :
  50  *   FC_NL_ASYNC_EVENT
  51  *
  52  * Note: if Vendor Unique message, &event_data will be  start of
  53  *       vendor unique payload, and the length of the payload is
  54  *       per event_datalen
  55  *
  56  * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
  57  *   formatting requirements specified in scsi_netlink.h
  58  */
  59 struct fc_nl_event {
  60         struct scsi_nl_hdr snlh;                /* must be 1st element ! */
  61         uint64_t seconds;
  62         uint64_t vendor_id;
  63         uint16_t host_no;
  64         uint16_t event_datalen;
  65         uint32_t event_num;
  66         uint32_t event_code;
  67         uint32_t event_data;
  68 } __attribute__((aligned(sizeof(uint64_t))));
  69
  70
  71 #endif /* SCSI_NETLINK_FC_H */
  72