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| author |   Jason Yan <yanaijie@huawei.com> | 2017-12-08 17:42:06 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-01-08 21:59:28 -0500 |
| commit | 8eea9dd84e450e5262643823691108f2a208a2ac (patch) | |
| tree | 955ffe8a05c8ef84e5c5cdf491cc7bd6922808af /include/scsi | |
| parent | scsi: libsas: shut down the PHY if events reached the threshold (diff) | |
| download | linux-dev-8eea9dd84e450e5262643823691108f2a208a2ac.tar.xz linux-dev-8eea9dd84e450e5262643823691108f2a208a2ac.zip | |
scsi: libsas: make the event threshold configurable
Add a sysfs attr that LLDD can configure it for every host. We made an
example in hisi_sas. Other LLDDs using libsas can implement it if they
want.
Suggested-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
Acked-by: John Garry <john.garry@huawei.com> #for hisi_sas part
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/libsas.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index de8f043475c2..3769615d4ce9 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -681,6 +681,7 @@ extern int sas_bios_param(struct scsi_device *, sector_t capacity, int *hsc); extern struct scsi_transport_template * sas_domain_attach_transport(struct sas_domain_function_template *); +extern struct device_attribute dev_attr_phy_event_threshold; int sas_discover_root_expander(struct domain_device *); |