mirror of
https://github.com/torvalds/linux.git
synced 2024-11-29 23:51:37 +00:00
8c64e4531c
Add support for periodically reconnecting to an SRP target until the dev_loss timer expires. After the tenth reconnection attempt, gradually slow down subsequent reconnect attempts. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
59 lines
2.5 KiB
Plaintext
59 lines
2.5 KiB
Plaintext
What: /sys/class/srp_remote_ports/port-<h>:<n>/delete
|
|
Date: June 1, 2012
|
|
KernelVersion: 3.7
|
|
Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
|
|
Description: Instructs an SRP initiator to disconnect from a target and to
|
|
remove all LUNs imported from that target.
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/dev_loss_tmo
|
|
Date: February 1, 2014
|
|
KernelVersion: 3.13
|
|
Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
|
|
Description: Number of seconds the SCSI layer will wait after a transport
|
|
layer error has been observed before removing a target port.
|
|
Zero means immediate removal. Setting this attribute to "off"
|
|
will disable the dev_loss timer.
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/fast_io_fail_tmo
|
|
Date: February 1, 2014
|
|
KernelVersion: 3.13
|
|
Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
|
|
Description: Number of seconds the SCSI layer will wait after a transport
|
|
layer error has been observed before failing I/O. Zero means
|
|
failing I/O immediately. Setting this attribute to "off" will
|
|
disable the fast_io_fail timer.
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/port_id
|
|
Date: June 27, 2007
|
|
KernelVersion: 2.6.24
|
|
Contact: linux-scsi@vger.kernel.org
|
|
Description: 16-byte local SRP port identifier in hexadecimal format. An
|
|
example: 4c:49:4e:55:58:20:56:49:4f:00:00:00:00:00:00:00.
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/reconnect_delay
|
|
Date: February 1, 2014
|
|
KernelVersion: 3.13
|
|
Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
|
|
Description: Number of seconds the SCSI layer will wait after a reconnect
|
|
attempt failed before retrying. Setting this attribute to
|
|
"off" will disable time-based reconnecting.
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/roles
|
|
Date: June 27, 2007
|
|
KernelVersion: 2.6.24
|
|
Contact: linux-scsi@vger.kernel.org
|
|
Description: Role of the remote port. Either "SRP Initiator" or "SRP Target".
|
|
|
|
What: /sys/class/srp_remote_ports/port-<h>:<n>/state
|
|
Date: February 1, 2014
|
|
KernelVersion: 3.13
|
|
Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
|
|
Description: State of the transport layer used for communication with the
|
|
remote port. "running" if the transport layer is operational;
|
|
"blocked" if a transport layer error has been encountered but
|
|
the fast_io_fail_tmo timer has not yet fired; "fail-fast"
|
|
after the fast_io_fail_tmo timer has fired and before the
|
|
"dev_loss_tmo" timer has fired; "lost" after the
|
|
"dev_loss_tmo" timer has fired and before the port is finally
|
|
removed.
|