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| author | Daniel Hansel <daniel.hansel@linux.vnet.ibm.com> | 2013-04-26 17:32:14 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-05-31 16:32:37 -0700 |
| commit | f76ccaac4f82c463a037aa4a1e4ccb85c7011814 (patch) | |
| tree | 89031d732bea0537f195ecf95ff177c37e09dd2b /drivers/s390/scsi | |
| parent | bd3238667ba76026bb543a953d63c11c4d52f28d (diff) | |
| download | linux-f76ccaac4f82c463a037aa4a1e4ccb85c7011814.tar.gz linux-f76ccaac4f82c463a037aa4a1e4ccb85c7011814.tar.bz2 linux-f76ccaac4f82c463a037aa4a1e4ccb85c7011814.zip | |
[SCSI] zfcp: fix adapter (re)open recovery while link to SAN is down
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@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> #2.6.37+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/s390/scsi')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index c7e148f33b2a..06760e435259 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -563,6 +563,10 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 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; |