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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2013-05-10 10:36:04 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-04 11:16:24 -0700 |
| commit | 0816c9251a7180383bb7811e1a1545f7b78e5374 (patch) | |
| tree | 1dffcde9c45f276b264c83511b6168baab4307a4 /include/scsi | |
| parent | 0761df9c4b2d966da3af2ac4ee7372afa681ce63 (diff) | |
| download | lwn-0816c9251a7180383bb7811e1a1545f7b78e5374.tar.gz lwn-0816c9251a7180383bb7811e1a1545f7b78e5374.zip | |
[SCSI] Allow error handling timeout to be specified
Introduce eh_timeout which can be used for error handling purposes. This
was previously hardcoded to 10 seconds in the SCSI error handling
code. However, for some fast-fail scenarios it is necessary to be able
to tune this as it can take several iterations (bus device, target, bus,
controller) before we give up.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi.h | 5 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 66216c1acb48..4b87d99e7fa1 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -10,9 +10,14 @@ #include <linux/types.h> #include <linux/scatterlist.h> +#include <linux/kernel.h> struct scsi_cmnd; +enum scsi_timeouts { + SCSI_DEFAULT_EH_TIMEOUT = 10 * HZ, +}; + /* * The maximum number of SG segments that we will put inside a * scatterlist (unless chaining is used). Should ideally fit inside a diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index cc645876d147..a44954c7cdc2 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -113,6 +113,7 @@ struct scsi_device { * scsi_devinfo.[hc]. For now used only to * pass settings from slave_alloc to scsi * core. */ + unsigned int eh_timeout; /* Error handling timeout */ unsigned writeable:1; unsigned removable:1; unsigned changed:1; /* Data invalid due to media change */ |