Unverified Commit 866cc5dd authored May 30, 2023 by openeuler-ci-bot Committed by Gitee May 30, 2023

!842 net: hns3: add support for Hisilicon ptp sync device

Merge Pull Request from: @svishen 
 
This pull Requests support hns3 driver provide ptp driver to get 1588 clock from ethernet.
But only the first PF on main chip can support this, so if getting ptp time from other chip, 
may have some bus latency. The PTP sync device use to eliminate the bus latency.

issue:
https://gitee.com/openeuler/kernel/issues/I78MGV 
 
Link:https://gitee.com/openeuler/kernel/pulls/842

 

Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>

parents df9cfeee c64545e1

MAINTAINERS

+5 −0

Original line number	Diff line number	Diff line
		@@ -8065,6 +8065,11 @@ S: Maintained
		W: http://www.hisilicon.com
		F: drivers/spi/spi-hisi-sfc-v3xx.c

		HISILICON HNS3 PTP SYNC DRIVER
		M: Yonglong Liu <liuyonglong@huawei.com>
		S: Supported
		F: drivers/ptp/ptp_hisi.c

		HMM - Heterogeneous Memory Management
		M: Jérôme Glisse <jglisse@redhat.com>
		L: linux-mm@kvack.org

arch/arm64/configs/openeuler_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -3612,6 +3612,7 @@ CONFIG_DP83640_PHY=m
		# CONFIG_PTP_1588_CLOCK_INES is not set
		# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
		# CONFIG_PTP_1588_CLOCK_IDTCM is not set
		CONFIG_PTP_HISI=m
		# end of PTP clock support

		CONFIG_PINCTRL=y

drivers/ptp/Kconfig

+11 −0

Original line number	Diff line number	Diff line
		@@ -154,4 +154,15 @@ config PTP_1588_CLOCK_VMW
		To compile this driver as a module, choose M here: the module
		will be called ptp_vmw.

		config PTP_HISI
		tristate "HiSilicon PTP sync platform driver"
		help
		PTP sync driver work on multichip system, eliminates the bus latency
		between multichip, and provide a higher precision clock source. But
		the clock source of PTP sync device is from the RTC of HNS3 ethernet
		device, so, if you want the PTP sync device works, you must enable
		HNS3 driver also.

		If unsure, say N.

		endmenu

drivers/ptp/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -15,3 +15,4 @@ ptp-qoriq-$(CONFIG_DEBUG_FS) += ptp_qoriq_debugfs.o
		obj-$(CONFIG_PTP_1588_CLOCK_IDTCM) += ptp_clockmatrix.o
		obj-$(CONFIG_PTP_1588_CLOCK_IDT82P33) += ptp_idt82p33.o
		obj-$(CONFIG_PTP_1588_CLOCK_VMW) += ptp_vmw.o
		obj-$(CONFIG_PTP_HISI) += ptp_hisi.o

drivers/ptp/ptp_hisi.c

0 → 100644

+1027 −0

File added.

Preview size limit exceeded, changes collapsed.