s390/ipl: Add missing SCSI loadparm attributes to /sys/firmware

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Currently the loadparm is only supported for CCW IPL. But also for SCSI
IPL it can be specified either on the HMC load panel respectively
z/VM console or via diagnose 308.

So fix this for SCSI and add the required sysfs attributes for reading the
IPL loadparm and for setting the loadparm for re-IPL.

With this patch the following two sysfs attributes are introduced:

 - /sys/firmware/ipl/loadparm (for system that have been IPLed from SCSI)
 - /sys/firmware/reipl/fcp/loadparm

Because the loadparm is now available for SCSI and CCW it is moved
now from "struct ipl_block_ccw" to the generic "struct ipl_list_hdr".

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

...

This commit is contained in:

Michael Holzheu 2014-08-26 17:51:08 +02:00 • committed by Martin Schwidefsky

parent 3b1269350b

commit 6992860167

2 changed files with 89 additions and 47 deletions

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8

arch/s390/include/asm/ipl.h

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128

arch/s390/kernel/ipl.c

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