On 05/02/2016 12:28 PM, Laurence Oberman wrote:
Even in the case of the ib_srp, don't we also have to still run the
eh_timeout for each of the devices that has inflight requiring error
handling serially. This means we will still have to wait to get a
path failover until all are through the timeout.
Hello Laurence,
It depends. If a transport layer error (e.g. a cable pull) has been
observed by the ib_srp driver then fast_io_fail_tmo seconds later the
ib_srp driver will terminate all outstanding SCSI commands without
waiting for the error handler to finish. If no transport layer error has
been observed then at most (SCSI timeout) + (number of pending commands
+ 1) * 5 seconds later srp_reset_device() will have finished terminating
all pending SCSI commands.
Bart.
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