linux/drivers/rapidio/rio.h
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   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#define RIO_MAX_CHK_RETRY       3
  18
  19/* Functions internal to the RIO core code */
  20
  21extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
  22                                 u8 hopcount, int ftr);
  23extern u32 rio_mport_get_physefb(struct rio_mport *port, int local,
  24                                 u16 destid, u8 hopcount);
  25extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
  26                             u8 hopcount, u32 from);
  27extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid,
  28                                    u8 hopcount);
  29extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
  30extern int rio_enum_mport(struct rio_mport *mport);
  31extern int rio_disc_mport(struct rio_mport *mport);
  32extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid,
  33                                   u8 hopcount, u16 table, u16 route_destid,
  34                                   u8 route_port);
  35extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid,
  36                                   u8 hopcount, u16 table, u16 route_destid,
  37                                   u8 *route_port);
  38extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid,
  39                                   u8 hopcount, u16 table);
  40extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
  41extern struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from);
  42
  43/* Structures internal to the RIO core code */
  44extern struct device_attribute rio_dev_attrs[];
  45extern spinlock_t rio_global_list_lock;
  46
  47extern struct rio_switch_ops __start_rio_switch_ops[];
  48extern struct rio_switch_ops __end_rio_switch_ops[];
  49
  50/* Helpers internal to the RIO core code */
  51#define DECLARE_RIO_SWITCH_SECTION(section, name, vid, did, init_hook) \
  52        static const struct rio_switch_ops __rio_switch_##name __used \
  53        __section(section) = { vid, did, init_hook };
  54
  55/**
  56 * DECLARE_RIO_SWITCH_INIT - Registers switch initialization routine
  57 * @vid: RIO vendor ID
  58 * @did: RIO device ID
  59 * @init_hook: Callback that performs switch-specific initialization
  60 *
  61 * Manipulating switch route tables and error management in RIO
  62 * is switch specific. This registers a switch by vendor and device ID with
  63 * initialization callback for setting up switch operations and (if required)
  64 * hardware initialization. A &struct rio_switch_ops is initialized with
  65 * pointer to the init routine and placed into a RIO-specific kernel section.
  66 */
  67#define DECLARE_RIO_SWITCH_INIT(vid, did, init_hook)            \
  68        DECLARE_RIO_SWITCH_SECTION(.rio_switch_ops, vid##did, \
  69                        vid, did, init_hook)
  70
  71#define RIO_GET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
  72#define RIO_SET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))
  73
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