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Documentation / rapidio / tsi721.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:40 EST.

1	RapidIO subsystem mport driver for IDT Tsi721 PCI Express-to-SRIO bridge.
2	=========================================================================
3	
4	I. Overview
5	
6	This driver implements all currently defined RapidIO mport callback functions.
7	It supports maintenance read and write operations, inbound and outbound RapidIO
8	doorbells, inbound maintenance port-writes and RapidIO messaging.
9	
10	To generate SRIO maintenance transactions this driver uses one of Tsi721 DMA
11	channels. This mechanism provides access to larger range of hop counts and
12	destination IDs without need for changes in outbound window translation.
13	
14	RapidIO messaging support uses dedicated messaging channels for each mailbox.
15	For inbound messages this driver uses destination ID matching to forward messages
16	into the corresponding message queue. Messaging callbacks are implemented to be
17	fully compatible with RIONET driver (Ethernet over RapidIO messaging services).
18	
19	II. Known problems
20	
21	  None.
22	
23	III. To do
24	
25	 Add DMA data transfers (non-messaging).
26	 Add inbound region (SRIO-to-PCIe) mapping.
27	
28	IV. Version History
29	
30	  1.0.0 - Initial driver release.
31	
32	V.  License
33	-----------------------------------------------
34	
35	  Copyright(c) 2011 Integrated Device Technology, Inc. All rights reserved.
36	
37	  This program is free software; you can redistribute it and/or modify it
38	  under the terms of the GNU General Public License as published by the Free
39	  Software Foundation; either version 2 of the License, or (at your option)
40	  any later version.
41	
42	  This program is distributed in the hope that it will be useful, but WITHOUT
43	  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
44	  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
45	  more details.
46	
47	  You should have received a copy of the GNU General Public License along with
48	  this program; if not, write to the Free Software Foundation, Inc.,
49	  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
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