1ATA_SCSI_TRANSLATE(9)   libata SCSI translation/emulat   ATA_SCSI_TRANSLATE(9)
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NAME

6       ata_scsi_translate - Translate then issue SCSI command to ATA device
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SYNOPSIS

9       int ata_scsi_translate(struct ata_device * dev, struct scsi_cmnd * cmd,
10                              void (*done) (struct scsi_cmnd *),
11                              ata_xlat_func_t xlat_func);
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ARGUMENTS

14       dev
15           ATA device to which the command is addressed
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17       cmd
18           SCSI command to execute
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20       done
21           SCSI command completion function
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23       xlat_func
24           Actor which translates cmd to an ATA taskfile
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DESCRIPTION

27       Our ->queuecommand function has decided that the SCSI command issued
28       can be directly translated into an ATA command, rather than handled
29       internally.
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31       This function sets up an ata_queued_cmd structure for the SCSI command,
32       and sends that ata_queued_cmd to the hardware.
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34       The xlat_func argument (actor) returns 0 if ready to execute ATA
35       command, else 1 to finish translation. If 1 is returned then
36       cmd->result (and possibly cmd->sense_buffer) are assumed to be set
37       reflecting an error condition or clean (early) termination.
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LOCKING

40       spin_lock_irqsave(host lock)
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RETURNS

43       0 on success, SCSI_ML_QUEUE_DEVICE_BUSY if the command needs to be
44       deferred.
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AUTHOR

47       Jeff Garzik
48           Author.
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51Kernel Hackers Manual 2.6.       November 2011           ATA_SCSI_TRANSLATE(9)
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