include/uapi/scsi/scsi_netlink_fc.h

   1 /*
   2  *  FC Transport Netlink Interface
   3  *
   4  *  Copyright (C) 2006   James Smart, Emulex Corporation
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21 #ifndef SCSI_NETLINK_FC_H
  22 #define SCSI_NETLINK_FC_H
  23
  24 #include <scsi/scsi_netlink.h>
  25
  26 /*
  27  * This file intended to be included by both kernel and user space
  28  */
  29
  30 /*
  31  * FC Transport Message Types
  32  */
  33         /* kernel -> user */
  34 #define FC_NL_ASYNC_EVENT                       0x0100
  35         /* user -> kernel */
  36 /* none */
  37
  38
  39 /*
  40  * Message Structures :
  41  */
  42
  43 /* macro to round up message lengths to 8byte boundary */
  44 #define FC_NL_MSGALIGN(len)             (((len) + 7) & ~7)
  45
  46
  47 /*
  48  * FC Transport Broadcast Event Message :
  49  *   FC_NL_ASYNC_EVENT
  50  *
  51  * Note: if Vendor Unique message, &event_data will be  start of
  52  *       vendor unique payload, and the length of the payload is
  53  *       per event_datalen
  54  *
  55  * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
  56  *   formatting requirements specified in scsi_netlink.h
  57  */
  58 struct fc_nl_event {
  59         struct scsi_nl_hdr snlh;                /* must be 1st element ! */
  60         uint64_t seconds;
  61         uint64_t vendor_id;
  62         uint16_t host_no;
  63         uint16_t event_datalen;
  64         uint32_t event_num;
  65         uint32_t event_code;
  66         uint32_t event_data;
  67 } __attribute__((aligned(sizeof(uint64_t))));
  68
  69
  70 #endif /* SCSI_NETLINK_FC_H */
  71