[linux-2.6-block.git] / drivers / ptp / Kconfig

#
# PTP clock support configuration
#

menu "PTP clock support"

config PTP_1588_CLOCK
	tristate "PTP clock support"
	depends on NET && POSIX_TIMERS
	select PPS
	select NET_PTP_CLASSIFY
	help
	  The IEEE 1588 standard defines a method to precisely
	  synchronize distributed clocks over Ethernet networks. The
	  standard defines a Precision Time Protocol (PTP), which can
	  be used to achieve synchronization within a few dozen
	  microseconds. In addition, with the help of special hardware
	  time stamping units, it can be possible to achieve
	  synchronization to within a few hundred nanoseconds.

	  This driver adds support for PTP clocks as character
	  devices. If you want to use a PTP clock, then you should
	  also enable at least one clock driver as well.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp.

config PTP_1588_CLOCK_GIANFAR
	tristate "Freescale eTSEC as PTP clock"
	depends on GIANFAR
	depends on PTP_1588_CLOCK
	default y
	help
	  This driver adds support for using the eTSEC as a PTP
	  clock. This clock is only useful if your PTP programs are
	  getting hardware time stamps on the PTP Ethernet packets
	  using the SO_TIMESTAMPING API.

	  To compile this driver as a module, choose M here: the module
	  will be called gianfar_ptp.

config PTP_1588_CLOCK_IXP46X
	tristate "Intel IXP46x as PTP clock"
	depends on IXP4XX_ETH
	depends on PTP_1588_CLOCK
	default y
	help
	  This driver adds support for using the IXP46X as a PTP
	  clock. This clock is only useful if your PTP programs are
	  getting hardware time stamps on the PTP Ethernet packets
	  using the SO_TIMESTAMPING API.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp_ixp46x.

comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
	depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n

config DP83640_PHY
	tristate "Driver for the National Semiconductor DP83640 PHYTER"
	depends on NETWORK_PHY_TIMESTAMPING
	depends on PHYLIB
	depends on PTP_1588_CLOCK
	---help---
	  Supports the DP83640 PHYTER with IEEE 1588 features.

	  This driver adds support for using the DP83640 as a PTP
	  clock. This clock is only useful if your PTP programs are
	  getting hardware time stamps on the PTP Ethernet packets
	  using the SO_TIMESTAMPING API.

	  In order for this to work, your MAC driver must also
	  implement the skb_tx_timestamp() function.

config PTP_1588_CLOCK_PCH
	tristate "Intel PCH EG20T as PTP clock"
	depends on X86_32 || COMPILE_TEST
	depends on HAS_IOMEM && NET
	imply PTP_1588_CLOCK
	help
	  This driver adds support for using the PCH EG20T as a PTP
	  clock. The hardware supports time stamping of PTP packets
	  when using the end-to-end delay (E2E) mechansim. The peer
	  delay mechansim (P2P) is not supported.

	  This clock is only useful if your PTP programs are getting
	  hardware time stamps on the PTP Ethernet packets using the
	  SO_TIMESTAMPING API.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp_pch.

config PTP_1588_CLOCK_KVM
	tristate "KVM virtual PTP clock"
	depends on PTP_1588_CLOCK
	depends on KVM_GUEST && X86
	default y
	help
	  This driver adds support for using kvm infrastructure as a PTP
	  clock. This clock is only useful if you are using KVM guests.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp_kvm.

endmenu
Commit	Line	Data
d94ba80e RC	1	#
	2	# PTP clock support configuration
	3	#
	4
	5	menu "PTP clock support"
	6
d94ba80e RC	7	config PTP_1588_CLOCK
d94ba80e RC	8	tristate "PTP clock support"
baa73d9e	9	depends on NET && POSIX_TIMERS
42a7ccef	10	select PPS
408eccce	11	select NET_PTP_CLASSIFY
d94ba80e RC	12	help
	13	The IEEE 1588 standard defines a method to precisely
	14	synchronize distributed clocks over Ethernet networks. The
	15	standard defines a Precision Time Protocol (PTP), which can
	16	be used to achieve synchronization within a few dozen
	17	microseconds. In addition, with the help of special hardware
	18	time stamping units, it can be possible to achieve
	19	synchronization to within a few hundred nanoseconds.
	20
	21	This driver adds support for PTP clocks as character
	22	devices. If you want to use a PTP clock, then you should
	23	also enable at least one clock driver as well.
	24
	25	To compile this driver as a module, choose M here: the module
	26	will be called ptp.
	27
c78275f3 RC	28	config PTP_1588_CLOCK_GIANFAR
c78275f3 RC	29	tristate "Freescale eTSEC as PTP clock"
c78275f3	30	depends on GIANFAR
d1cbfd77	31	depends on PTP_1588_CLOCK
a24006ed	32	default y
c78275f3 RC	33	help
	34	This driver adds support for using the eTSEC as a PTP
	35	clock. This clock is only useful if your PTP programs are
	36	getting hardware time stamps on the PTP Ethernet packets
	37	using the SO_TIMESTAMPING API.
	38
	39	To compile this driver as a module, choose M here: the module
	40	will be called gianfar_ptp.
	41
32bd93e8 RC	42	config PTP_1588_CLOCK_IXP46X
32bd93e8 RC	43	tristate "Intel IXP46x as PTP clock"
32bd93e8	44	depends on IXP4XX_ETH
d1cbfd77	45	depends on PTP_1588_CLOCK
a24006ed	46	default y
32bd93e8 RC	47	help
	48	This driver adds support for using the IXP46X as a PTP
	49	clock. This clock is only useful if your PTP programs are
	50	getting hardware time stamps on the PTP Ethernet packets
	51	using the SO_TIMESTAMPING API.
	52
	53	To compile this driver as a module, choose M here: the module
	54	will be called ptp_ixp46x.
	55
cb646e2b	56	comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
a24006ed	57	depends on PHYLIB=n \|\| NETWORK_PHY_TIMESTAMPING=n
cb646e2b RC	58
	59	config DP83640_PHY
	60	tristate "Driver for the National Semiconductor DP83640 PHYTER"
cb646e2b RC	61	depends on NETWORK_PHY_TIMESTAMPING
cb646e2b RC	62	depends on PHYLIB
d1cbfd77	63	depends on PTP_1588_CLOCK
cb646e2b RC	64	---help---
	65	Supports the DP83640 PHYTER with IEEE 1588 features.
	66
	67	This driver adds support for using the DP83640 as a PTP
	68	clock. This clock is only useful if your PTP programs are
	69	getting hardware time stamps on the PTP Ethernet packets
	70	using the SO_TIMESTAMPING API.
	71
	72	In order for this to work, your MAC driver must also
6b2aac42	73	implement the skb_tx_timestamp() function.
cb646e2b	74
863d08ec TS	75	config PTP_1588_CLOCK_PCH
863d08ec TS	76	tristate "Intel PCH EG20T as PTP clock"
bc56151d	77	depends on X86_32 \|\| COMPILE_TEST
1a466ae9	78	depends on HAS_IOMEM && NET
d1cbfd77	79	imply PTP_1588_CLOCK
863d08ec TS	80	help
863d08ec TS	81	This driver adds support for using the PCH EG20T as a PTP
358dfb6d TS	82	clock. The hardware supports time stamping of PTP packets
	83	when using the end-to-end delay (E2E) mechansim. The peer
	84	delay mechansim (P2P) is not supported.
	85
	86	This clock is only useful if your PTP programs are getting
	87	hardware time stamps on the PTP Ethernet packets using the
	88	SO_TIMESTAMPING API.
863d08ec TS	89
	90	To compile this driver as a module, choose M here: the module
	91	will be called ptp_pch.
	92
a0e136d4 MT	93	config PTP_1588_CLOCK_KVM
	94	tristate "KVM virtual PTP clock"
	95	depends on PTP_1588_CLOCK
	96	depends on KVM_GUEST && X86
	97	default y
	98	help
	99	This driver adds support for using kvm infrastructure as a PTP
	100	clock. This clock is only useful if you are using KVM guests.
	101
	102	To compile this driver as a module, choose M here: the module
	103	will be called ptp_kvm.
	104
d94ba80e	105	endmenu