This is a note to let you know that I've just added the patch titled
SCSI: zfcp: fix adapter (re)open recovery while link to SAN is down
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-zfcp-fix-adapter-re-open-recovery-while-link-to-san-is-down.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f76ccaac4f82c463a037aa4a1e4ccb85c7011814 Mon Sep 17 00:00:00 2001
From: Daniel Hansel <daniel.hansel@xxxxxxxxxxxxxxxxxx>
Date: Fri, 26 Apr 2013 17:32:14 +0200
Subject: SCSI: zfcp: fix adapter (re)open recovery while link to SAN is down
From: Daniel Hansel <daniel.hansel@xxxxxxxxxxxxxxxxxx>
commit f76ccaac4f82c463a037aa4a1e4ccb85c7011814 upstream.
FCP device remains in status ERP_FAILED when device is switched online
or adapter recovery is triggered while link to SAN is down.
When Exchange Configuration Data command returns the FSF status
FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE it aborts the exchange process.
The only retries are done during the common error recovery procedure
(i.e. max. 3 retries with 8sec sleep between) and remains in status
ERP_FAILED with QDIO down.
This commit reverts the commit 0df138476c8306478d6e726f044868b4bccf411c
(zfcp: Fix adapter activation on link down).
When FSF status FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE is received the
adapter recovery will be finished without any retries. QDIO will be
up now and status changes such as LINK UP will be received now.
Signed-off-by: Daniel Hansel <daniel.hansel@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Steffen Maier <maier@xxxxxxxxxxxxxxxxxx>
Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/s390/scsi/zfcp_fsf.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -534,6 +534,10 @@ static void zfcp_fsf_exchange_config_dat
fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
adapter->hydra_version = 0;
+ /* avoids adapter shutdown to be able to recognize
+ * events such as LINK UP */
+ atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
+ &adapter->status);
zfcp_fsf_link_down_info_eval(req,
&qtcb->header.fsf_status_qual.link_down_info);
break;
Patches currently in stable-queue which might be from daniel.hansel@xxxxxxxxxxxxxxxxxx are
queue-3.0/scsi-zfcp-fix-adapter-re-open-recovery-while-link-to-san-is-down.patch
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