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| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2010-07-16 17:37:43 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 18:48:58 +0400 |
| commit | 339f4f4eab80caa6cf0d39fb057ad6ddb84ba91e (patch) | |
| tree | 495dc5a18c128d3e802a8b1914f978bf4262ac3d /drivers/s390/scsi/zfcp_def.h | |
| parent | ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4 (diff) | |
| download | linux-339f4f4eab80caa6cf0d39fb057ad6ddb84ba91e.tar.xz | |
[SCSI] zfcp: Trigger logging in the FCP channel on qdio error conditions
Exploit the cio siosl function to trigger logging in the FCP channel
on qdio error conditions. Add a helper function in zfcp_qdio to ensure
that tracing is only triggered once before calling qdio_shutdown.
Trigger in zfcp for hardware logs are:
- timeout for FSF requests to the FCP channel
- "no recommendation" status from FCP channel
- invalid FSF protocol status
- stalled outbound queue
- unknown request id on inbound queue
- QDIO_ERROR_SLSB_STATE
All of the above triggers run from the Linux qdio softirq context, so
no additional synchronization is necessary for the handling of the
ZFCP_STATUS_ADAPTER_SIOSL_ISSUED flag.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 6c6374ba1807..e1c6b6e05a75 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -73,6 +73,7 @@ struct zfcp_reqlist; /* adapter status */ #define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002 +#define ZFCP_STATUS_ADAPTER_SIOSL_ISSUED 0x00000004 #define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008 #define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010 #define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100 |