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s390/ipl: rely on diag308 store to get ipl info

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For both ccw and fcp boot retrieve ipl info from ipl block received via
diag308 store. Old scsi ipl parm block handling and cio_get_iplinfo are
removed. Ipl type is deducted from ipl block (if valid).

Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
This commit is contained in:
Vasily Gorbik 2018-04-03 16:03:08 +02:00 • committed by Martin Schwidefsky
commit d08091ac96
6 changed files with 17 additions and 119 deletions
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33
drivers/s390/cio/cio.c
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@ -990,39 +990,6 @@ void reipl_ccw_dev(struct ccw_dev_id *devid)
do_reipl_asm(*((__u32*)&schid));
}
int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo)
{
static struct chsc_sda_area sda_area __initdata;
struct subchannel_id schid;
struct schib schib;
schid = *(struct subchannel_id *)&S390_lowcore.subchannel_id;
if (!schid.one)
return -ENODEV;
if (schid.ssid) {
/*
* Firmware should have already enabled MSS but whoever started
* the kernel might have initiated a channel subsystem reset.
* Ensure that MSS is enabled.
*/
memset(&sda_area, 0, sizeof(sda_area));
if (__chsc_enable_facility(&sda_area, CHSC_SDA_OC_MSS))
return -ENODEV;
}
if (stsch(schid, &schib))
return -ENODEV;
if (schib.pmcw.st != SUBCHANNEL_TYPE_IO)
return -ENODEV;
if (!schib.pmcw.dnv)
return -ENODEV;
iplinfo->ssid = schid.ssid;
iplinfo->devno = schib.pmcw.dev;
iplinfo->is_qdio = schib.pmcw.qf;
return 0;
}
/**
* cio_tm_start_key - perform start function
* @sch: subchannel on which to perform the start function