[S390] ccwreq: add ability to use all paths

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Change the ccwrequest infrastructure to use more than one channel
path per start I/O. A flag "singlepath" is added to struct
ccw_request - if set, the old behavior is used. This flag is set
for all exploiters of the ccwrequest infrastructure - so there
is no functional change through this patch.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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This commit is contained in:

Sebastian Ott 2010-08-09 18:12:53 +02:00 • committed by Martin Schwidefsky

parent 7cd403142d

commit 982bdf8146

4 changed files with 22 additions and 7 deletions

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14

drivers/s390/cio/ccwreq.c

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1

drivers/s390/cio/device_id.c

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4

drivers/s390/cio/device_pgid.c

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10

drivers/s390/cio/io_sch.h

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