1SRP_RECONNECT_RPORT(9)          SCSI mid layer          SRP_RECONNECT_RPORT(9)
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NAME

6       srp_reconnect_rport - reconnect to an SRP target port
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SYNOPSIS

9       int srp_reconnect_rport(struct srp_rport * rport);
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ARGUMENTS

12       rport
13           SRP target port.
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DESCRIPTION

16       Blocks SCSI command queueing before invoking reconnect such that
17       queuecommand won´t be invoked concurrently with reconnect from outside
18       the SCSI EH. This is important since a reconnect implementation may
19       reallocate resources needed by queuecommand.
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NOTES

22       - This function neither waits until outstanding requests have finished
23       nor tries to abort these. It is the responsibility of the reconnect
24       function to finish outstanding commands before reconnecting to the
25       target port. - It is the responsibility of the caller to ensure that
26       the resources reallocated by the reconnect function won´t be used while
27       this function is in progress. One possible strategy is to invoke this
28       function from the context of the SCSI EH thread only. Another possible
29       strategy is to lock the rport mutex inside each SCSI LLD callback that
30       can be invoked by the SCSI EH (the scsi_host_template.eh_*() functions
31       and also the scsi_host_template.queuecommand function).
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AUTHORS

34       James Bottomley <James.Bottomley@hansenpartnership.com>
35           Author.
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37       Rob Landley <rob@landley.net>
38           Author.
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41Kernel Hackers Manual 2.6.         June 2019            SRP_RECONNECT_RPORT(9)
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