diff options
| author | Matt Porter <mporter@kernel.crashing.org> | 2005-11-07 01:00:15 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:46 -0800 |
| commit | 394b701ce4fbfde919a9bcbf84cb4820a7c6d47c (patch) | |
| tree | a397fff4043a9810e753fb81224349bd36db45b8 /drivers/rapidio/rio.h | |
| parent | d217d5450f11d8c907c0458d175b0dc999b4d06d (diff) | |
[PATCH] RapidIO support: core base
Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect
used in higher-end embedded applications. The curious can look at the specs
over at http://www.rapidio.org
The core code implements enumeration/discovery, management of
devices/resources, and interfaces for RIO drivers.
There's a lot more to do to take advantages of all the hardware features.
However, this should provide a good base for folks with RIO hardware to start
contributing.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/rapidio/rio.h')
| -rw-r--r-- | drivers/rapidio/rio.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h new file mode 100644 index 000000000000..f865a68cd3d5 --- /dev/null +++ b/drivers/rapidio/rio.h @@ -0,0 +1,57 @@ +/* + * RapidIO interconnect services + * + * Copyright 2005 MontaVista Software, Inc. + * Matt Porter <mporter@kernel.crashing.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/device.h> +#include <linux/list.h> +#include <linux/rio.h> + +/* Functions internal to the RIO core code */ + +extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid, + u8 hopcount, int ftr); +extern int rio_create_sysfs_dev_files(struct rio_dev *rdev); +extern int rio_enum_mport(struct rio_mport *mport); +extern int rio_disc_mport(struct rio_mport *mport); + +/* Structures internal to the RIO core code */ +extern struct device_attribute rio_dev_attrs[]; +extern spinlock_t rio_global_list_lock; + +/* Helpers internal to the RIO core code */ +#define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook) \ + static struct rio_route_ops __rio_route_ops __attribute_used__ \ + __attribute__((__section__(#section))) = { vid, did, add_hook, get_hook }; + +/** + * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations + * @vid: RIO vendor ID + * @did: RIO device ID + * @add_hook: Callback that adds a route entry + * @get_hook: Callback that gets a route entry + * + * Manipulating switch route tables in RIO is switch specific. This + * registers a switch by vendor and device ID with two callbacks for + * modifying and retrieving route entries in a switch. A &struct + * rio_route_ops is initialized with the ops and placed into a + * RIO-specific kernel section. + */ +#define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook) \ + DECLARE_RIO_ROUTE_SECTION(.rio_route_ops, \ + vid, did, add_hook, get_hook) + +#ifdef CONFIG_RAPIDIO_8_BIT_TRANSPORT +#define RIO_GET_DID(x) ((x & 0x00ff0000) >> 16) +#define RIO_SET_DID(x) ((x & 0x000000ff) << 16) +#else +#define RIO_GET_DID(x) (x & 0xffff) +#define RIO_SET_DID(x) (x & 0xffff) +#endif |