Commit 2daace78 authored Jul 06, 2017 by Dong Jia Shi Committed by Martin Schwidefsky Jul 13, 2017

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>

parent b855629b

drivers/s390/cio/chp.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -559,6 +559,7 @@ static void chp_process_crw(struct crw crw0, struct crw crw1,
	chpid.id = crw0->rsid;		chpid.id = crw0->rsid;
	switch (crw0->erc) {		switch (crw0->erc) {
	case CRW_ERC_IPARM: /* Path has come. */		case CRW_ERC_IPARM: /* Path has come. */
			case CRW_ERC_INIT:
	if (!chp_is_registered(chpid))		if (!chp_is_registered(chpid))
	chp_new(chpid);		chp_new(chpid);
	chsc_chp_online(chpid);		chsc_chp_online(chpid);

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