Qlogic SANsurfer iSCSI HBA CLI, User Manual

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A – Port- and HBA-level Parameters
Port-level Parameters
SN0054621-00 E A-3
A
FW_Fast_Posting
a
on, off n/a When on, allows posting SCSI command com-
pletions for multiple SCSI commands during a
single system interrupt.
FW_Initiator_Mode
a
on, off n/a When on, the HBA is in initiator mode.
FW_Marker
a
on, off n/a When on does not require a marker IOCB to
resume IOCB processing after a task manage-
ment mailbox command. When off, the HBA
rejects any IOCB for a target device affected by
a task management command until the driver
issues a marker IOCB to synchronize the SCSI
request queue between the HBA and the driver.
FW_Sense_Buffer_
Desc
a
on, off n/a When on, the HBA expects the last data seg-
ment descriptor of the data descriptor list associ-
ated with a Command Type 3 IOCB to be a
descriptor of a sense buffer.
When off, the HBA passes any sense data from
the target in a status IOCB.
FW_ZIO_Enable_Mode on, off ZIOE Enables Zero Interrupt Operation (ZIO) mode.
When on, the firmware minimizes the number of
interrupts it generates to the host driver while it
continues to post completions to the queue.
When the ZIO count threshold is reached, the
firmware interrupts the host driver to notify it that
the queue must be drained. When an I/O com-
pletes before the ZIO count threshold, the host
driver is interrupted so it can drain all the I/O
completions from the queue.
IP_Address IPv4
address IPAD Target IP address.
IP_ARP_Redirect on, off IPARP When on, MAC addresses are discovered and
bound to IP addresses for hosts to which the
HBA wants to talk.
IP_Fragmentation a
on, off n/a When on, the HBA cannot fragment IP data-
grams. When this parameter is off, the HBA
fragments IP datagrams as necessary.
IP_Gateway IPv4
address IPGW IP address of the gateway available to the HBA.
IP_Subnet_Mask IPv4
address IPSM HBA subnet mask xxx . xxx . xxx . xxx .
Table A-1. Port Settings (Continued)
Parameter Value Alias Description