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Grygorii Strashko 0a26ba0603 net: ethernet: ti: cpsw: disable PTPv1 hw timestamping advertisement 
The TI CPTS does not natively support PTPv1, only PTPv2. But, as it
happens, the CPTS can provide HW timestamp for PTPv1 Sync messages, because
CPTS HW parser looks for PTP messageType id in PTP message octet 0 which
value is 0 for PTPv1. As result, CPTS HW can detect Sync messages for PTPv1
and PTPv2 (Sync messageType = 0 for both), but it fails for any other PTPv1
messages (Delay_req/resp) and will return PTP messageType id 0 for them.

The commit e9523a5a32 ("net: ethernet: ti: cpsw: enable
HWTSTAMP_FILTER_PTP_V1_L4_EVENT filter") added PTPv1 hw timestamping
advertisement by mistake, only to make Linux Kernel "timestamping" utility
work, and this causes issues with only PTPv1 compatible HW/SW - Sync HW
timestamped, but Delay_req/resp are not.

Hence, fix it disabling PTPv1 hw timestamping advertisement, so only PTPv1
compatible HW/SW can properly roll back to SW timestamping.

Fixes: e9523a5a32 ("net: ethernet: ti: cpsw: enable HWTSTAMP_FILTER_PTP_V1_L4_EVENT filter")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20201029190910.30789-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-02 14:17:51 -08:00
arch A couple of x86 fixes which missed rc1 due to my stupidity: 2020-10-27 14:39:29 -07:00
block block-5.10-2020-10-24 2020-10-24 12:46:42 -07:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto drivers-5.10-2020-10-12 2020-10-13 13:04:41 -07:00
Documentation dt-bindings: Another round of adding missing 'additionalProperties/unevalutatedProperties' 2020-10-26 16:13:56 -05:00
drivers net: ethernet: ti: cpsw: disable PTPv1 hw timestamping advertisement 2020-11-02 14:17:51 -08:00
fs AFS fixes 2020-10-29 10:13:09 -07:00
include A couple of fixes, for 2020-11-02 09:43:54 -08:00
init linux-kselftest-kunit-5.10-rc1 2020-10-18 14:45:59 -07:00
ipc ipc: adjust proc_ipc_sem_dointvec definition to match prototype 2020-09-05 12:14:29 -07:00
kernel Fix synthetic event "strcat" overrun 2020-10-28 12:05:14 -07:00
lib random32: make prandom_u32() less predictable 2020-10-25 10:40:08 -07:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm/process_vm_access: Add missing #include <linux/compat.h> 2020-10-27 12:41:29 -07:00
net A couple of fixes, for 2020-11-02 09:43:54 -08:00
samples bpf, libbpf: Guard bpf inline asm from bpf_tail_call_static 2020-10-22 01:46:52 +02:00
scripts treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
security SafeSetID changes for v5.10 2020-10-25 10:45:26 -07:00
sound ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
tools wireguard: selftests: check that route_me_harder packets use the right sk 2020-10-30 12:57:38 +01:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt kvm: x86/mmu: Support dirty logging for the TDP MMU 2020-10-23 03:42:13 -04:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.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: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap MAINTAINERS: jarkko.sakkinen@linux.intel.com -> jarkko@kernel.org 2020-10-16 11:11:19 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
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 ARM: Devicetree updates 2020-10-24 10:44:18 -07:00
Makefile Linux 5.10-rc1 2020-10-25 15:14:11 -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.