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s390: chp: handle CRW_ERC_INIT for channel-path status change 

When channel path is identified as the report source code (RSC)
of a CRW, and initialized (CRW_ERC_INIT) is recognized as the
error recovery code (ERC) by the channel subsystem, it indicates
a "path has come" event.

Let's handle this case in chp_process_crw().

Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Dong Jia Shi 2017-07-06 04:00:45 +02:00 committed by Martin Schwidefsky
parent b855629b9a
commit 2daace78a8
1 changed files with 1 additions and 0 deletions
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drivers/s390/cio/chp.c
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@ -559,6 +559,7 @@ static void chp_process_crw(struct crw *crw0, struct crw *crw1,
chpid.id = crw0->rsid;
switch (crw0->erc) {
case CRW_ERC_IPARM: /* Path has come. */
case CRW_ERC_INIT:
if (!chp_is_registered(chpid))
chp_new(chpid);
chsc_chp_online(chpid);