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)) 73