Commit d36f0c66 authored by Sebastian Ott's avatar Sebastian Ott Committed by Martin Schwidefsky
Browse files

[S390] cio: use pim to check for multipath.



To check if multipath is available we count the bits set in lpm,
which could change over time (via configure [on|off] of a path).

The following patch uses the pim (which is persistent) for this
decision.
Signed-off-by: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent f444cc0e
......@@ -1174,7 +1174,8 @@ void io_subchannel_init_config(struct subchannel *sch)
{
memset(&sch->config, 0, sizeof(sch->config));
sch->config.csense = 1;
if ((sch->lpm & (sch->lpm - 1)) != 0)
/* Use subchannel mp mode when there is more than 1 installed CHPID. */
if ((sch->schib.pmcw.pim & (sch->schib.pmcw.pim - 1)) != 0)
sch->config.mp = 1;
}
......
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