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tsi721.txt

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  1. RapidIO subsystem mport driver for IDT Tsi721 PCI Express-to-SRIO bridge.
    2. 

  2. =========================================================================
    3. 

  3. 

  4. I. Overview
    5. 

  5. 

  6. This driver implements all currently defined RapidIO mport callback functions.
    7. 

  7. It supports maintenance read and write operations, inbound and outbound RapidIO
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  8. doorbells, inbound maintenance port-writes and RapidIO messaging.
    9. 

  9. 

  10. To generate SRIO maintenance transactions this driver uses one of Tsi721 DMA
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  11. channels. This mechanism provides access to larger range of hop counts and
    12. 

  12. destination IDs without need for changes in outbound window translation.
    13. 

  13. 

  14. RapidIO messaging support uses dedicated messaging channels for each mailbox.
    15. 

  15. For inbound messages this driver uses destination ID matching to forward messages
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  16. into the corresponding message queue. Messaging callbacks are implemented to be
    17. 

  17. fully compatible with RIONET driver (Ethernet over RapidIO messaging services).
    18. 

  18. 

  19. II. Known problems
    20. 

  20. 

  21.   None.
    22. 

  22. 

  23. III. To do
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  24. 

  25.  Add DMA data transfers (non-messaging).
    26. 

  26.  Add inbound region (SRIO-to-PCIe) mapping.
    27. 

  27. 

  28. IV. Version History
    29. 

  29. 

  30.   1.0.0 - Initial driver release.
    31. 

  31. 

  32. V.  License
    33. 

  33. -----------------------------------------------
    34. 

  34. 

  35.   Copyright(c) 2011 Integrated Device Technology, Inc. All rights reserved.
    36. 

  36. 

  37.   This program is free software; you can redistribute it and/or modify it
    38. 

  38.   under the terms of the GNU General Public License as published by the Free
    39. 

  39.   Software Foundation; either version 2 of the License, or (at your option)
    40. 

  40.   any later version.
    41. 

  41. 

  42.   This program is distributed in the hope that it will be useful, but WITHOUT
    43. 

  43.   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    44. 

  44.   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
    45. 

  45.   more details.
    46. 

  46. 

  47.   You should have received a copy of the GNU General Public License along with
    48. 

  48.   this program; if not, write to the Free Software Foundation, Inc.,
    49. 

  49.   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    50. 

  50.