linux/Documentation/rapidio/tsi721.txt
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   1RapidIO subsystem mport driver for IDT Tsi721 PCI Express-to-SRIO bridge.
   2=========================================================================
   3
   4I. Overview
   5
   6This driver implements all currently defined RapidIO mport callback functions.
   7It supports maintenance read and write operations, inbound and outbound RapidIO
   8doorbells, inbound maintenance port-writes and RapidIO messaging.
   9
  10To generate SRIO maintenance transactions this driver uses one of Tsi721 DMA
  11channels. This mechanism provides access to larger range of hop counts and
  12destination IDs without need for changes in outbound window translation.
  13
  14RapidIO messaging support uses dedicated messaging channels for each mailbox.
  15For inbound messages this driver uses destination ID matching to forward messages
  16into the corresponding message queue. Messaging callbacks are implemented to be
  17fully compatible with RIONET driver (Ethernet over RapidIO messaging services).
  18
  19II. Known problems
  20
  21  None.
  22
  23III. To do
  24
  25 Add DMA data transfers (non-messaging).
  26 Add inbound region (SRIO-to-PCIe) mapping.
  27
  28IV. Version History
  29
  30  1.0.0 - Initial driver release.
  31
  32V.  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.
  50
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