Emulex 3.4 user manual All lpfc dynamic parameters are read/write using sysfs

Table 9: lpfc Static Parameters (Requires a driver reload to change) (Continued)

					Visible
Variable	Default	Min	Max	Comments	using
					sysfs
lpfc_max_luns	256	1	32768	Specifies the maximum	Yes
				number of LUN IDs per
				target. A value of 20 means
				LUN IDs from 0 to 19 are
				valid. The SCSI layer will
				scan each target until it
				reaches the specified LUN
				ID.
lpfc_multi_ring_support	1	1	2	Determines the number of	No
				primary SLI rings over
				which to spread IOCB
				entries.
lpfc_poll	0	1= poll wiith		Sets FCP ring polling mode	Yes
		interrupts enabled		control.
		3 = poll and disable
		FCP ring interrupts
lpfc_poll_tmo	10	1	255	Milliseconds the driver	Yes
				waits between polling FCP
				ring interrupts.

All lpfc dynamic parameters are read/write using sysfs.

Table 10: lpfc Dynamic Parameters (Do not require a driver reload to change)

Variable	Default	Min	Max	Comments
lpfc_enable_auth	0	0	1	This driver property specifies if the
				DH-CHAP is enabled or not. When set to
				1, DH-CHAP is enabled. When set to 0,
				DH-CHAP support is disabled.
				NOTE: This property requires a link reset
				to activate.
lpfc_link_speed	0	0=auto select		Sets link speed.
		1=1G
		2=2G
		4=4G
		8=8G
lpfc_log_verbose	0x0	0x0	0xffff	(bit mask) Extra activity logging.
lpfc_nodev_tmo	30	0	255	Seconds to hold I/O error if device
				disappears.
lpfc_topology	0	0x0=loop		FClink topology (defaults to loop, if it fails
		then P2P		attempts point-to-point mode).
		0x2=P2P only
		0x4=loop only
		0x6=P2P
		then loop

The HBAnyware Utility User Manual Page 91