From: Daniel Hansel Date: Fri, 26 Apr 2013 15:32:14 +0000 (+0200) Subject: SCSI: zfcp: fix adapter (re)open recovery while link to SAN is down X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=88bc5928044239f6902e89798ae4ef75d23ccb3c;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git SCSI: zfcp: fix adapter (re)open recovery while link to SAN is down 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 Signed-off-by: Steffen Maier Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index c7e148f33b2..06760e43525 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;