The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
ata_sg_init – Associate command with scatter-gather table. Synopsis void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, unsigned int n_elem); Arguments qc Command to be associated sg Scatter-gather table. n_elem Number of elements in s/g table. Description Initialize the data-related elements of queued_cmd qc to point to a scatter-gather table sg, containing n_elem elements. LOCKING: spin_lock_irqsave(host lock)…
ata_sg_clean – Unmap DMA memory associated with command Synopsis void ata_sg_clean(struct ata_queued_cmd *qc); Arguments qc Command containing DMA memory to be released Description Unmap all mapped DMA memory associated with this command. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_set_max_sectors – Set max sectors Synopsis int ata_set_max_sectors(struct ata_device *dev, u64 new_sectors); Arguments dev target device new_sectors new max sectors value to set for the device Description Set max sectors of dev to new_sectors. Return 0 on success, -EACCES if command is aborted or denied (due to previous non-volatile SET_MAX) by the drive. -EIO on…
ata_scsiop_report_luns – Simulate REPORT LUNS command Synopsis unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Simulate REPORT LUNS command. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsiop_read_cap – Simulate READ CAPACITY[ 16] commands Synopsis unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Simulate READ CAPACITY commands. LOCKING: None. Author Jeff Garzik Author. Copyright
ata_scsiop_noop – Command handler that simply returns success. Synopsis unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description No operation. Simply returns success to caller, to indicate that the caller should successfully complete this SCSI…
ata_scsiop_mode_sense – Simulate MODE SENSE 6, 10 commands Synopsis unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Simulate MODE SENSE commands. Assume this is invoked for direct access devices (e.g. disks) only. There should…
ata_scsiop_maint_in – Simulate a subset of MAINTENANCE_IN Synopsis unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf); Arguments args device MAINTENANCE_IN data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Yields a subset to satisfy scsi_report_opcode LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsiop_inq_std – Simulate INQUIRY command Synopsis unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Returns standard device identification data associated with non-VPD INQUIRY command output. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsiop_inq_89 – Simulate INQUIRY VPD page 89, ATA info Synopsis unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Yields SAT-specified ATA VPD page. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsiop_inq_83 – Simulate INQUIRY VPD page 83, device identity Synopsis unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Yields two logical unit device identification designators: – vendor specific ASCII containing the ATA serial number…
ata_scsiop_inq_80 – Simulate INQUIRY VPD page 80, device serial number Synopsis unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Returns ATA device serial number. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsiop_inq_00 – Simulate INQUIRY VPD page 0, list of pages Synopsis unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf); Arguments args device IDENTIFY data / SCSI command of interest. rbuf Response buffer, to which simulated SCSI cmd output is sent. Description Returns list of inquiry VPD pages available. LOCKING: spin_lock_irqsave(host lock) Author Jeff Garzik Author. Copyright
ata_scsi_write_same_xlat – SATL Write Same to ATA SCT Write Same Synopsis unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc); Arguments qc Command to be translated Description Translate a SCSI WRITE SAME command to be either a DSM TRIM command or an SCT Write Same command. Based on WRITE SAME has the UNMAP flag When set translate to DSM…
ata_scsi_verify_xlat – Translate SCSI VERIFY command into an ATA one Synopsis unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc); Arguments qc Storage for translated ATA taskfile Description Converts SCSI VERIFY command to an ATA READ VERIFY command. LOCKING: spin_lock_irqsave(host lock) Return Zero on success, non-zero on error. Author Jeff Garzik Author. Copyright
ata_scsi_user_scan – indication for user-initiated bus scan Synopsis int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel, unsigned int id, u64 lun); Arguments shost SCSI host to scan channel Channel to scan id ID to scan lun LUN to scan Description This function is called when user explicitly requests bus scan. Set probe pending flag and invoke…
ata_scsi_unlock_native_capacity – unlock native capacity Synopsis void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); Arguments sdev SCSI device to adjust device capacity for Description This function is called if a partition on sdev extends beyond the end of the device. It requests EH to unlock HPA. LOCKING: Defined by the SCSI layer. Might sleep. Author Jeff Garzik Author. Copyright
ata_scsi_translate – Translate then issue SCSI command to ATA device Synopsis int ata_scsi_translate(struct ata_device *dev, struct scsi_cmnd *cmd, ata_xlat_func_t xlat_func); Arguments dev ATA device to which the command is addressed cmd SCSI command to execute xlat_func Actor which translates cmd to an ATA taskfile Description Our ->queuecommand function has decided that the SCSI command issued…
ata_scsi_start_stop_xlat – Translate SCSI START STOP UNIT command Synopsis unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc); Arguments qc Storage for translated ATA taskfile Description Sets up an ATA taskfile to issue STANDBY (to stop) or READ VERIFY (to start). Perhaps these commands should be preceded by CHECK POWER MODE to see what power mode the device is…
ata_scsi_slave_destroy – SCSI device is about to be destroyed Synopsis void ata_scsi_slave_destroy(struct scsi_device *sdev); Arguments sdev SCSI device to be destroyed Description sdev is about to be destroyed for hot/warm unplugging. If this unplugging was initiated by libata as indicated by NULL dev->sdev, this function doesn’t have to do anything. Otherwise, SCSI layer initiated warm-unplug…