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Vladimir Oltean 4fd8c3b76b net: dsa: felix: support phy-mode = "10g-qxgmii" 
[ Upstream commit 6f616757dd ]

The "usxgmii" phy-mode that the Felix switch ports support on LS1028A is
not quite USXGMII, it is defined by the USXGMII multiport specification
document as 10G-QXGMII. It uses the same signaling as USXGMII, but it
multiplexes 4 ports over the link, resulting in a maximum speed of 2.5G
per port.

This change is needed in preparation for the lynx-10g SerDes driver on
LS1028A, which will make a more clear distinction between usxgmii
(supported on lane 0) and 10g-qxgmii (supported on lane 1). These
protocols have their configuration in different PCCR registers (PCCRB vs
PCCR9).

Continue parsing and supporting single-port-per-lane USXGMII when found
in the device tree as usual (because it works), but add support for
10G-QXGMII too. Using phy-mode = "10g-qxgmii" will be required when
modifying the device trees to specify a "phys" phandle to the SerDes
lane. The result when the "phys" phandle is present but the phy-mode is
wrong is undefined.

The only PHY driver in known use with this phy-mode, AQR412C, will gain
logic to transition from "usxgmii" to "10g-qxgmii" in a future change.
Prepare the driver by also setting PHY_INTERFACE_MODE_10G_QXGMII in
supported_interfaces when PHY_INTERFACE_MODE_USXGMII is there, to
prevent breakage with existing device trees.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250903130730.2836022-3-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-11-13 15:37:15 -05:00
arch mips: lantiq: danube: rename stp node on EASY50712 reference board 2025-11-13 15:37:10 -05:00
block blk-cgroup: fix possible deadlock while configuring policy 2025-11-13 15:36:52 -05:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: essiv - Check ssize for decryption and in-place encryption 2025-10-19 16:37:14 +02:00
Documentation netlink: specs: fou: change local-v6/peer-v6 check 2025-11-13 15:37:12 -05:00
drivers net: dsa: felix: support phy-mode = "10g-qxgmii" 2025-11-13 15:37:15 -05:00
fs move_mount(2): take sanity checks in 'beneath' case into do_lock_mount() 2025-11-13 15:37:12 -05:00
include net: nfc: nci: Increase NCI_DATA_TIMEOUT to 3000 ms 2025-11-13 15:37:12 -05:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:37:27 +02:00
io_uring io_uring/zcrx: account niov arrays to cgroup 2025-11-13 15:36:51 -05:00
ipc vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
kernel uprobe: Do not emulate/sstep original instruction when ip is changed 2025-11-13 15:36:53 -05:00
lib kunit: Enable PCI on UML without triggering WARN() 2025-11-13 15:36:51 -05:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm treewide: remove MIGRATEPAGE_SUCCESS 2025-10-29 14:10:32 +01:00
net net: call cond_resched() less often in __release_sock() 2025-11-13 15:37:13 -05:00
rust rust: kunit: allow cfg on tests 2025-11-13 15:36:51 -05:00
samples 15 hotfixes. 11 are cc:stable and the remainder address post-6.16 issues 2025-09-17 21:34:26 -07:00
scripts docs: kernel-doc: avoid script crash on ancient Python 2025-11-13 15:36:58 -05:00
security KEYS: trusted_tpm1: Compare HMAC values in constant time 2025-10-19 16:37:28 +02:00
sound ALSA: usb-audio: apply quirk for MOONDROP Quark2 2025-11-13 15:37:13 -05:00
tools selftests: ncdevmem: don't retry EFAULT 2025-11-13 15:37:15 -05:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt Merge tag 'kvm-x86-no_assignment-6.17' of https://github.com/kvm-x86/linux into HEAD 2025-07-29 08:36:42 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore gitignore: allow .pylintrc to be tracked 2025-07-02 17:10:04 -06:00
.mailmap 7 hotfixes. 4 are cc:stable and the remainder address post-6.16 issues or 2025-09-28 09:32:00 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: retire Boris from TLS maintainers 2025-08-26 17:36:01 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS i2c-for-6.17-rc8 2025-09-28 13:19:23 -07:00
Makefile Linux 6.17.7 2025-11-02 22:18:05 +09:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.