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Kurt Kanzenbach 3cb958027c net: stmmac: Fix E2E delay mechanism 
When utilizing End to End delay mechanism, the following error messages show up:

|root@ehl1:~# ptp4l --tx_timestamp_timeout=50 -H -i eno2 -E -m
|ptp4l[950.573]: selected /dev/ptp3 as PTP clock
|ptp4l[950.586]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE
|ptp4l[950.586]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
|ptp4l[952.879]: port 1: new foreign master 001395.fffe.4897b4-1
|ptp4l[956.879]: selected best master clock 001395.fffe.4897b4
|ptp4l[956.879]: port 1: assuming the grand master role
|ptp4l[956.879]: port 1: LISTENING to GRAND_MASTER on RS_GRAND_MASTER
|ptp4l[962.017]: port 1: received DELAY_REQ without timestamp
|ptp4l[962.273]: port 1: received DELAY_REQ without timestamp
|ptp4l[963.090]: port 1: received DELAY_REQ without timestamp

Commit f2fb6b6275 ("net: stmmac: enable timestamp snapshot for required PTP
packets in dwmac v5.10a") already addresses this problem for the dwmac
v5.10. However, same holds true for all dwmacs above version v4.10. Correct the
check accordingly. Afterwards everything works as expected.

Tested on Intel Atom(R) x6414RE Processor.

Fixes: 14f347334b ("net: stmmac: Correctly take timestamp for PTPv2")
Fixes: f2fb6b6275 ("net: stmmac: enable timestamp snapshot for required PTP packets in dwmac v5.10a")
Suggested-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
History 2021-10-20 14:43:53 +01:00
arch Networking fixes for 5.15-rc6. 2021-10-14 18:21:39 -04:00
block block-5.15-2021-10-09 2021-10-09 14:51:59 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
Documentation mctp: unify sockaddr_mctp types 2021-10-18 13:47:09 +01:00
drivers net: stmmac: Fix E2E delay mechanism 2021-10-20 14:43:53 +01:00
fs for-5.15-rc5-tag 2021-10-11 16:48:19 -07:00
include mctp: Be explicit about struct sockaddr_mctp padding 2021-10-18 13:47:09 +01:00
init Merge branch 'work.init' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-09-24 10:18:07 -07:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2021-09-14 10:22:11 -07:00
kernel Modules fix for v5.15-rc6 2021-10-13 07:42:07 -07:00
lib linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm: fix uninitialized use in overcommit_policy_handler 2021-09-24 16:13:35 -07:00
net net: dsa: Fix an error handling path in 'dsa_switch_parse_ports_of()' 2021-10-19 15:41:16 -07:00
samples samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause 2021-09-29 16:03:55 +02:00
scripts linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
security Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2021-10-07 12:44:41 +01:00
sound ALSA: usb-audio: Add quirk for VF0770 2021-10-12 22:13:11 +02:00
tools selftests/tls: add SM4 algorithm dependency for tls selftests 2021-10-18 13:52:11 +01:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: Remove tlbs_dirty 2021-09-23 11:01:12 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: update email address of Matthias Fuchs and Thomas Körper 2021-08-19 09:39:44 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Networking fixes for 5.15-rc6. 2021-10-14 18:21:39 -04:00
Makefile Linux 5.15-rc5 2021-10-10 17:01:59 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.