drivers/rapidio/rio.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * RapidIO interconnect services
0004  *
0005  * Copyright 2005 MontaVista Software, Inc.
0006  * Matt Porter <mporter@kernel.crashing.org>
0007  */
0008
0009 #include <linux/device.h>
0010 #include <linux/list.h>
0011 #include <linux/rio.h>
0012
0013 #define RIO_MAX_CHK_RETRY   3
0014 #define RIO_MPORT_ANY       (-1)
0015
0016 /* Functions internal to the RIO core code */
0017
0018 extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
0019                  u8 hopcount, int ftr);
0020 extern u32 rio_mport_get_physefb(struct rio_mport *port, int local,
0021                  u16 destid, u8 hopcount, u32 *rmap);
0022 extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
0023                  u8 hopcount, u32 from);
0024 extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid,
0025                     u8 hopcount);
0026 extern int rio_lock_device(struct rio_mport *port, u16 destid,
0027             u8 hopcount, int wait_ms);
0028 extern int rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount);
0029 extern int rio_route_add_entry(struct rio_dev *rdev,
0030             u16 table, u16 route_destid, u8 route_port, int lock);
0031 extern int rio_route_get_entry(struct rio_dev *rdev, u16 table,
0032             u16 route_destid, u8 *route_port, int lock);
0033 extern int rio_route_clr_table(struct rio_dev *rdev, u16 table, int lock);
0034 extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
0035 extern struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from);
0036 extern struct rio_net *rio_alloc_net(struct rio_mport *mport);
0037 extern int rio_add_net(struct rio_net *net);
0038 extern void rio_free_net(struct rio_net *net);
0039 extern int rio_add_device(struct rio_dev *rdev);
0040 extern void rio_del_device(struct rio_dev *rdev, enum rio_device_state state);
0041 extern int rio_enable_rx_tx_port(struct rio_mport *port, int local, u16 destid,
0042                  u8 hopcount, u8 port_num);
0043 extern int rio_register_scan(int mport_id, struct rio_scan *scan_ops);
0044 extern int rio_unregister_scan(int mport_id, struct rio_scan *scan_ops);
0045 extern void rio_attach_device(struct rio_dev *rdev);
0046 extern struct rio_mport *rio_find_mport(int mport_id);
0047 extern int rio_mport_scan(int mport_id);
0048
0049 /* Structures internal to the RIO core code */
0050 extern const struct attribute_group *rio_dev_groups[];
0051 extern const struct attribute_group *rio_bus_groups[];
0052 extern const struct attribute_group *rio_mport_groups[];
0053
0054 #define RIO_GET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
0055 #define RIO_SET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))