drivers/rapidio/rio.h

   1 /*
   2  * RapidIO interconnect services
   3  *
   4  * Copyright 2005 MontaVista Software, Inc.
   5  * Matt Porter <mporter@kernel.crashing.org>
   6  *
   7  * This program is free software; you can redistribute  it and/or modify it
   8  * under  the terms of  the GNU General  Public License as published by the
   9  * Free Software Foundation;  either version 2 of the  License, or (at your
  10  * option) any later version.
  11  */
  12
  13 #include <linux/device.h>
  14 #include <linux/list.h>
  15 #include <linux/rio.h>
  16
  17 /* Functions internal to the RIO core code */
  18
  19 extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
  20                                  u8 hopcount, int ftr);
  21 extern u32 rio_mport_get_physefb(struct rio_mport *port, int local,
  22                                  u16 destid, u8 hopcount);
  23 extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
  24                              u8 hopcount, u32 from);
  25 extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
  26 extern int rio_enum_mport(struct rio_mport *mport);
  27 extern int rio_disc_mport(struct rio_mport *mport);
  28 extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid,
  29                                    u8 hopcount, u16 table, u16 route_destid,
  30                                    u8 route_port);
  31 extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid,
  32                                    u8 hopcount, u16 table, u16 route_destid,
  33                                    u8 *route_port);
  34 extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid,
  35                                    u8 hopcount, u16 table);
  36 extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
  37
  38 /* Structures internal to the RIO core code */
  39 extern struct device_attribute rio_dev_attrs[];
  40 extern spinlock_t rio_global_list_lock;
  41
  42 extern struct rio_route_ops __start_rio_route_ops[];
  43 extern struct rio_route_ops __end_rio_route_ops[];
  44
  45 /* Helpers internal to the RIO core code */
  46 #define DECLARE_RIO_ROUTE_SECTION(section, name, vid, did, add_hook, get_hook, clr_hook) \
  47         static const struct rio_route_ops __rio_route_##name __used \
  48         __section(section) = { vid, did, add_hook, get_hook, clr_hook };
  49
  50 /**
  51  * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
  52  * @vid: RIO vendor ID
  53  * @did: RIO device ID
  54  * @add_hook: Callback that adds a route entry
  55  * @get_hook: Callback that gets a route entry
  56  *
  57  * Manipulating switch route tables in RIO is switch specific. This
  58  * registers a switch by vendor and device ID with two callbacks for
  59  * modifying and retrieving route entries in a switch. A &struct
  60  * rio_route_ops is initialized with the ops and placed into a
  61  * RIO-specific kernel section.
  62  */
  63 #define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook, clr_hook)   \
  64         DECLARE_RIO_ROUTE_SECTION(.rio_route_ops, vid##did,             \
  65                         vid, did, add_hook, get_hook, clr_hook)
  66
  67 #define RIO_GET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
  68 #define RIO_SET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))
  69
  70 /*
  71  *   RapidIO Error Management
  72  */
  73 extern struct rio_em_ops __start_rio_em_ops[];
  74 extern struct rio_em_ops __end_rio_em_ops[];
  75
  76 /* Helpers internal to the RIO core code */
  77 #define DECLARE_RIO_EM_SECTION(section, name, vid, did, init_hook, em_hook)  \
  78         static const struct rio_em_ops __rio_em_##name __used   \
  79         __section(section) = { vid, did, init_hook, em_hook };
  80
  81 /**
  82  * DECLARE_RIO_EM_OPS - Registers switch EM operations
  83  * @vid: RIO vendor ID
  84  * @did: RIO device ID
  85  * @init_hook: Callback that initializes device specific EM
  86  * @em_hook: Callback that handles device specific EM
  87  *
  88  * A &struct rio_em_ops is initialized with the ops and placed into a
  89  * RIO-specific kernel section.
  90  */
  91 #define DECLARE_RIO_EM_OPS(vid, did, init_hook, em_hook)        \
  92         DECLARE_RIO_EM_SECTION(.rio_em_ops, vid##did,           \
  93                         vid, did, init_hook, em_hook)