| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 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 | |
| 21 | extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid, |
| 22 | u8 hopcount, int ftr); |
| 23 | extern u32 rio_mport_get_physefb(struct rio_mport *port, int local, |
| 24 | u16 destid, u8 hopcount); |
| 25 | extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid, |
| 26 | u8 hopcount, u32 from); |
| 27 | extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid, |
| 28 | u8 hopcount); |
| 29 | extern int rio_create_sysfs_dev_files(struct rio_dev *rdev); |
| 30 | extern int rio_enum_mport(struct rio_mport *mport); |
| 31 | extern int rio_disc_mport(struct rio_mport *mport); |
| 32 | extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, |
| 33 | u8 hopcount, u16 table, u16 route_destid, |
| 34 | u8 route_port); |
| 35 | extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, |
| 36 | u8 hopcount, u16 table, u16 route_destid, |
| 37 | u8 *route_port); |
| 38 | extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, |
| 39 | u8 hopcount, u16 table); |
| 40 | extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock); |
| 41 | extern struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from); |
| 42 | |
| 43 | /* Structures internal to the RIO core code */ |
| 44 | extern struct device_attribute rio_dev_attrs[]; |
| 45 | extern spinlock_t rio_global_list_lock; |
| 46 | |
| 47 | extern struct rio_switch_ops __start_rio_switch_ops[]; |
| 48 | extern 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)) |