MPTSCSIH_QCMD(9) Message-based devices MPTSCSIH_QCMD(9)NAME
mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
int mptscsih_qcmd(struct scsi_cmnd * SCpnt, void (*done) (struct scsi_cmnd *));
Pointer to scsi_cmnd structure
Pointer SCSI mid-layer IO completion function
(linux scsi_host_template.queuecommand routine) This is the primary SCSI IO start routine. Create a MPI SCSIIORequest from a linux
scsi_cmnd request and send it to the IOC.
Returns 0. (rtn value discarded by linux scsi mid-layer)
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 MPTSCSIH_QCMD(9)
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ATA_SCSI_TRANSLATE(9) libata SCSI translation/emulat ATA_SCSI_TRANSLATE(9)NAME
ata_scsi_translate - Translate then issue SCSI command to ATA device
int ata_scsi_translate(struct ata_device * dev, struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *), ata_xlat_func_t xlat_func);
ATA device to which the command is addressed
SCSI command to execute
SCSI command completion function
Actor which translates cmd to an ATA taskfile
Our ->queuecommand function has decided that the SCSI command issued can be directly translated into an ATA command, rather than handled
This function sets up an ata_queued_cmd structure for the SCSI command, and sends that ata_queued_cmd to the hardware.
The xlat_func argument (actor) returns 0 if ready to execute ATA command, else 1 to finish translation. If 1 is returned then cmd->result
(and possibly cmd->sense_buffer) are assumed to be set reflecting an error condition or clean (early) termination.
0 on success, SCSI_ML_QUEUE_DEVICE_BUSY if the command needs to be deferred.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 ATA_SCSI_TRANSLATE(9)
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