FC_BLOCK_SCSI_EH - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : SCSI mid layer

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NAMEfc_block_scsi_eh − Block SCSI eh thread for blocked fc_rport

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SYNOPSISint fc_block_scsi_eh(struct scsi_cmnd * cmnd);

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ARGUMENTScmnd SCSI command that scsi_eh is trying to recover

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DESCRIPTIONThis routine can be called from a FC LLD scsi_eh callback​. It blocks the scsi_eh thread until the fc_rport leaves the FC_PORTSTATE_BLOCKED, or the fast_io_fail_tmo fires​. This is necessary to avoid the scsi_eh failing recovery actions for blocked rports which would lead to offlined SCSI devices​.

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RETURNS0 if the fc_rport left the state FC_PORTSTATE_BLOCKED​. FAST_IO_FAIL if the fast_io_fail_tmo fired, this should be passed back to scsi_eh​.

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AUTHORSJames Bottomley <​James.Bottomley@hansenpartnership.com​> Author. Rob Landley <​rob@landley.net​> Author.

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Johanes Gumabo

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