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Danielle Ratson 6abf13bd7f ethtool: Extend link modes settings uAPI with lanes 
Currently, when auto negotiation is on, the user can advertise all the
linkmodes which correspond to a specific speed, but does not have a
similar selector for the number of lanes. This is significant when a
specific speed can be achieved using different number of lanes.  For
example, 2x50 or 4x25.

Add 'ETHTOOL_A_LINKMODES_LANES' attribute and expand 'struct
ethtool_link_settings' with lanes field in order to implement a new
lanes-selector that will enable the user to advertise a specific number
of lanes as well.

When auto negotiation is off, lanes parameter can be forced only if the
driver supports it. Add a capability bit in 'struct ethtool_ops' that
allows ethtool know if the driver can handle the lanes parameter when
auto negotiation is off, so if it does not, an error message will be
returned when trying to set lanes.

Example:

$ ethtool -s swp1 lanes 4
$ ethtool swp1
  Settings for swp1:
	Supported ports: [ FIBRE ]
        Supported link modes:   1000baseKX/Full
                                10000baseKR/Full
                                40000baseCR4/Full
				40000baseSR4/Full
				40000baseLR4/Full
                                25000baseCR/Full
                                25000baseSR/Full
				50000baseCR2/Full
                                100000baseSR4/Full
				100000baseCR4/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  40000baseCR4/Full
				40000baseSR4/Full
				40000baseLR4/Full
                                100000baseSR4/Full
				100000baseCR4/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Speed: Unknown!
        Duplex: Unknown! (255)
        Auto-negotiation: on
        Port: Direct Attach Copper
        PHYAD: 0
        Transceiver: internal
        Link detected: no

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: hongrongxuan <hongrongxuan@huawei.com>

 Conflicts:
	net/ethtool/linkmodes.c
	net/ethtool/netlink.h
 		2024-06-12 16:56:30 +08:00
..
ABI tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
EDID docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
PCI Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-27 14:23:31 -07:00
RCU Merge branches 'consolidate.2019.08.01b', 'fixes.2019.08.12a', 'lists.2019.08.13a' and 'torture.2019.08.01b' into HEAD 2019-08-13 14:30:30 -07:00
accounting tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
admin-guide tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
arm tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
arm64 arm64: Add HWCAP for Data Gathering Hint instruction 2024-06-12 13:16:50 +08:00
block docs: block: null_blk: enhance document style 2019-09-11 16:04:22 -06:00
bpf ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
cdrom docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
core-api tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
cpu-freq Documentation: cpufreq: Update policy notifier documentation 2019-09-02 22:44:05 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-09-18 12:11:14 -07:00
dev-tools tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
devicetree tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
doc-guide docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
driver-api tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
fault-injection tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
fb tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
features It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
filesystems tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
firmware-guide tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
firmware_class
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fpga Documentation: fpga: dfl: add descriptions for virtualization and new interfaces. 2019-09-03 19:35:42 -07:00
gpu Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
hid docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
hwmon tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
i2c docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
ia64 docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
ide docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
iio docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
ioctl ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
isdn docs: isdn: convert to ReST and add to kAPI bookset 2019-07-31 13:30:25 -06:00
kbuild ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
kernel-hacking docs: Add documentation for Symbol Namespaces 2019-09-10 10:30:49 +02:00
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
livepatch docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
locking doc🔒 remove reference to clever use of read-write lock 2019-09-14 01:53:27 -06:00
m68k docs: README.buddha: convert to ReST and add to m68k book 2019-07-31 13:30:10 -06:00
maintainer docs: Fix typo on pull requests guide 2019-08-12 15:14:14 -06:00
media ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mic docs: driver-api: add remaining converted dirs to it 2019-07-15 11:03:03 -03:00
mips Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
misc-devices Docs: misc: xilinx_sdfec: Add documentation 2019-08-15 17:54:38 +02:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
networking ethtool: Extend link modes settings uAPI with lanes 2024-06-12 16:56:30 +08:00
nios2 docs: nios2: add it to the main Documentation body 2019-07-31 13:31:51 -06:00
openrisc docs: openrisc: convert to ReST and add to documentation body 2019-07-31 13:30:20 -06:00
parisc docs: parisc: convert to ReST and add to documentation body 2019-07-31 13:30:15 -06:00
pcmcia docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
power Merge branches 'pm-opp', 'pm-qos', 'acpi-pm', 'pm-domains' and 'pm-tools' 2019-09-17 09:49:19 +02:00
powerpc docs: powerpc: Add missing documentation reference 2019-09-17 23:59:34 +10:00
process tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
riscv It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
s390 Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
scheduler sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices 2019-08-08 09:09:30 +02:00
scsi tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
security Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2019-09-27 19:37:27 -07:00
sh docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
sound tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
sparc docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
sphinx tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
sphinx-static
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spi spi: docs: convert to ReST and add it to the kABI bookset 2019-07-31 14:13:13 -06:00
target tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
timers docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
trace tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
translations doc: arm64: fix grammar dtb placed in no attributes region 2019-09-06 08:44:34 -06:00
usb USB: rio500: Remove Rio 500 kernel driver 2019-10-04 10:53:36 +02:00
userspace-api tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
virt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
virtual cpuidle: add haltpoll governor 2019-07-30 17:27:37 +02:00
vm tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
w1 docs: w1: convert to ReST and add to the kAPI group of docs 2019-07-31 14:16:17 -06:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
xtensa ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
.gitignore
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COPYING-logo docs: logo.txt: rename it to COPYING-logo 2019-07-15 09:20:27 -03:00
Changes
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CodingStyle
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DMA-API-HOWTO.txt docs: DMA-API-HOWTO.txt: fix an unmarked code block 2019-07-15 09:20:24 -03:00
DMA-API.txt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
DMA-ISA-LPC.txt
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DMA-attributes.txt
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IPMI.txt
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IRQ-affinity.txt
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IRQ-domain.txt
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IRQ.txt
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Kconfig docs: Kbuild/Makefile: allow check for missing docs at build time 2019-06-07 11:33:16 -06:00
Makefile docs: Kbuild/Makefile: allow check for missing docs at build time 2019-06-07 11:33:16 -06:00
SubmittingPatches
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asm-annotations.rst ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
atomic_bitops.txt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
atomic_t.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 16:12:03 -07:00
bus-virt-phys-mapping.txt
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conf.py tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
crc32.txt
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debugging-modules.txt
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debugging-via-ohci1394.txt
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digsig.txt
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docutils.conf doc-rst: Add missing newline at end of file 2019-06-20 14:16:56 -06:00
dontdiff kbuild: create *.mod with full directory path and remove MODVERDIR 2019-07-18 02:19:31 +09:00
futex-requeue-pi.txt
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hwspinlock.txt hwspinlock: add the 'in_atomic' API 2019-06-29 21:08:14 -07:00
index.rst ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
io-mapping.txt
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io_ordering.txt
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irqflags-tracing.txt
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kobject.txt
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kprobes.txt Merge branch 'parisc-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2019-05-07 19:34:17 -07:00
kref.txt
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logo.gif
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lzo.txt ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mailbox.txt
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memory-barriers.txt asm-generic: introduce io_stop_wc() and add implementation for ARM64 2024-06-12 13:16:50 +08:00
nommu-mmap.txt
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padata.txt padata: allocate workqueue internally 2019-09-13 21:15:39 +10:00
percpu-rw-semaphore.txt
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pi-futex.txt docs: locking: convert docs to ReST and rename to *.rst 2019-07-15 08:53:27 -03:00
preempt-locking.txt x86/fpu: Remove fpu__restore() 2019-04-09 19:27:42 +02:00
rbtree.txt docs: rbtree.txt: fix Sphinx build warnings 2019-07-15 09:20:24 -03:00
remoteproc.txt remoteproc: add vendor resources handling 2019-06-29 12:02:17 -07:00
robust-futex-ABI.txt
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robust-futexes.txt futex: Update comments and docs about return values of arch futex code 2019-04-26 13:57:55 +01:00
rpmsg.txt
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speculation.txt docs: speculation.txt: mark example blocks as such 2019-04-11 12:37:03 -06:00
static-keys.txt
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tee.txt Documentation: tee: Grammar s/the its/its/ 2019-06-07 11:23:38 -06:00
this_cpu_ops.txt
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unaligned-memory-access.txt docs: unaligned-memory-access.txt: use a lowercase title 2019-04-11 12:37:03 -06:00
xz.txt
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