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[S390] dasd: add High Performance FICON support
authorStefan Weinhuber <wein@de.ibm.com>
Thu, 26 Mar 2009 14:23:48 +0000 (15:23 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 26 Mar 2009 14:24:05 +0000 (15:24 +0100)
To support High Performance FICON, the DASD device driver has to
translate I/O requests into the new transport mode control words (TCW)
instead of the traditional (command mode) CCW requests.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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