MPTSCSIH_DO_CMD(9) Message-based devices MPTSCSIH_DO_CMD(9)NAME
mptscsih_do_cmd - Do internal command.
int mptscsih_do_cmd(MPT_SCSI_HOST * hd, INTERNAL_CMD * io);
Issue the specified internally generated command and do command specific cleanup. For bus scan / DV only.
If command is Inquiry and status is good, initialize a target structure, save the data
Single threaded access only.
< 0 if an illegal command or no resources
0 if good
> 0 if command complete but some type of completion error.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 MPTSCSIH_DO_CMD(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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