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OpenCloudOS-Kernel/Documentation/networking
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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
..
caif docs: net: convert two README files to ReST format 2019-07-31 13:31:56 -06:00
device_drivers Documentation: networking: device drivers: Remove stray asterisks 2019-11-01 13:20:43 -07:00
dsa docs: net: dsa: sja1105: Add info about the Time-Aware Scheduler 2019-09-16 21:32:58 +02:00
mac80211_hwsim docs: net: convert two README files to ReST format 2019-07-31 13:31:56 -06:00
6lowpan.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
6pack.txt
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PLIP.txt
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af_xdp.rst doc/af_xdp: include unaligned chunk case 2019-08-31 01:08:27 +02:00
alias.rst docs: networking: Convert alias.txt to rst 2018-07-18 15:28:27 -07:00
altera_tse.txt Documentation: networking: fix spelling mistakes 2016-04-28 14:21:13 -04:00
arcnet-hardware.txt
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arcnet.txt
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atm.txt
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ax25.txt
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batman-adv.rst batman-adv: Drop documentation about sysfs files 2019-03-25 09:31:35 +01:00
baycom.txt
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bonding.txt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
bridge.rst docs: networking: Convert bridge.txt to rst 2018-07-18 15:28:27 -07:00
can.rst docs: can.rst: fix a footnote reference 2018-06-15 12:48:59 -03:00
can_ucan_protocol.rst can: ucan: add driver for Theobroma Systems UCAN devices 2018-07-27 10:40:16 +02:00
cdc_mbim.txt Documentation: fix usb related doc refs 2017-10-12 11:15:48 -06:00
checksum-offloads.rst doc: networking: shorten the main title in offloads documents 2019-01-07 15:27:51 -07:00
cops.txt
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cxacru-cf.py
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cxacru.txt
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dccp.txt
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dctcp.txt
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decnet.txt Documentation: decnet: remove reference to CONFIG_DECNET_ROUTE_FWMARK 2019-04-21 11:25:11 -07:00
defza.txt FDDI: defza: Add support for DEC FDDIcontroller 700 TURBOchannel adapter 2018-10-15 21:46:06 -07:00
devlink-health.txt devlink: Add Documentation/networking/devlink-health.txt 2019-02-07 10:34:29 -08:00
devlink-info-versions.rst devlink: Add new info version tags for ASIC and FW 2019-09-05 09:24:43 +02:00
devlink-params-bnxt.txt devlink: Add Documentation/networking/devlink-params-bnxt.txt 2018-10-04 13:49:43 -07:00
devlink-params-mlxsw.txt mlxsw: spectrum: add "acl_region_rehash_interval" devlink param 2019-02-08 15:02:50 -08:00
devlink-params-nfp.txt nfp: devlink: add 'reset_dev_on_drv_probe' support 2019-09-10 17:29:27 +01:00
devlink-params.txt devlink: add 'reset_dev_on_drv_probe' param 2019-09-10 17:29:26 +01:00
devlink-trap-netdevsim.rst Documentation: Add description of netdevsim traps 2019-08-17 12:40:09 -07:00
devlink-trap.rst Documentation: Clarify trap's description 2019-09-27 20:33:19 +02:00
dns_resolver.txt doc: ReSTify keys-request-key.txt 2017-05-18 10:33:51 -06:00
driver.txt
…
eql.txt
…
ethtool-netlink.rst ethtool: Extend link modes settings uAPI with lanes 2024-06-12 16:56:30 +08:00
failover.rst net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_trie.txt
…
filter.txt docs/bpf: minor casing/punctuation fixes 2019-03-02 00:40:04 +01:00
fore200e.txt
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framerelay.txt
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gen_stats.txt net: sched: do not acquire qdisc spinlock in qdisc/class stats dump 2016-06-07 16:37:14 -07:00
generic-hdlc.txt
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generic_netlink.txt
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gtp.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
hinic.txt net-next/hinic: Initialize hw interface 2017-08-22 10:48:52 -07:00
ieee802154.rst doc: net: ieee802154: introduce IEEE 802.15.4 subsystem doc in rst style 2019-03-01 17:03:00 -08:00
ila.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
index.rst ethtool: introduce ethtool netlink interface 2024-06-12 13:17:05 +08:00
ip-sysctl.txt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
ip_dynaddr.txt
…
ipddp.txt
…
iphase.txt
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ipsec.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
ipv6.txt
…
ipvlan.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
ipvs-sysctl.txt tkernel: sync code to the same with tk4 pub/lts/0017-kabi 2024-06-12 13:13:20 +08:00
j1939.rst ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
kapi.rst sfp: add documentation for kernel APIs 2017-12-05 11:16:19 -05:00
kcm.txt docs: networking: fix minor typos in various documentation files 2018-06-04 17:21:28 -04:00
l2tp.txt net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* 2016-12-10 23:29:11 -05:00
lapb-module.txt
…
ltpc.txt
…
mac80211-auth-assoc-deauth.txt
…
mac80211-injection.txt
…
mpls-sysctl.txt Documentation/networking: fix default_ttl typo in mpls-sysctl 2019-07-01 10:41:33 -07:00
msg_zerocopy.rst doc: fix link to MSG_ZEROCOPY patchset 2019-03-18 09:50:21 -07:00
multiqueue.txt
…
net_dim.txt net: update net_dim documentation after rename 2019-10-10 16:37:10 -07:00
net_failover.rst docs: networking: Fix failover build warnings 2018-07-16 11:23:54 -07:00
netconsole.txt docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
netdev-FAQ.rst Documentation: fix netdev-FAQ.rst markup warning 2019-05-01 09:12:51 -04:00
netdev-features.txt docs-networking: fix typo in define 2018-11-21 10:30:30 -08:00
netdevices.txt net: remove NETDEV_TX_LOCKED support 2016-04-26 15:53:05 -04:00
netfilter-sysctl.txt netfilter: allow logging from non-init namespaces 2017-02-02 14:31:58 +01:00
netif-msg.txt
…
nf_conntrack-sysctl.txt netfilter: conntrack: register sysctl table for gre 2018-12-21 00:51:25 +01:00
nf_flowtable.txt tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
nfc.txt
…
openvswitch.txt
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operstates.txt Documentation: bring operstate documentation up-to-date 2019-02-11 12:38:51 -08:00
packet_mmap.txt doc: remove out of date links and info from packet mmap 2018-03-16 10:48:52 -04:00
page_pool.rst Documentation: update networking/page_pool.rst 2024-06-12 13:17:54 +08:00
phonet.txt
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phy.rst doc: phy: document some PHY_INTERFACE_MODE_xxx settings 2019-06-23 11:35:06 -07:00
pktgen.txt Documentation/pktgen: Clearify how-to use pktgen samples 2018-01-24 15:03:36 -05:00
ppp_generic.txt ppp: remove the PPPIOCDETACH ioctl 2018-05-24 22:55:07 -04:00
proc_net_tcp.txt
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radiotap-headers.txt
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ray_cs.txt
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rds.txt linux-next: DOC: RDS: Fix a typo in rds.txt 2019-06-12 09:56:29 -07:00
regulatory.txt cfg80211: reg: remove support for built-in regdb 2017-10-11 13:18:51 +02:00
rxrpc.txt rxrpc: Allow the kernel to mark a call as being non-interruptible 2019-05-16 16:25:20 +01:00
scaling.rst doc: networking: integrate scaling document into doc tree 2019-01-20 19:10:49 -07:00
sctp.txt
…
secid.txt
…
seg6-sysctl.txt ipv6: sr: add documentation file for per-interface sysctls 2016-11-09 20:40:06 -05:00
segmentation-offloads.rst networking: : fix typos in code comments 2019-05-20 20:24:34 -04:00
sfp-phylink.rst net: phylink: clarify where phylink should be used 2019-09-16 16:53:44 +02:00
skfp.txt
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snmp_counter.rst networking: fix snmp_counter.rst Doc. Warnings 2019-03-17 19:37:08 -07:00
strparser.txt strparser: Corrected typo in documentation. 2018-06-24 16:40:20 +09:00
switchdev.txt switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tc-actions-env-rules.txt
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tcp-thin.txt
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team.txt
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timestamping.txt docs: ptp.txt: convert to ReST and move to driver-api 2019-06-14 14:31:27 -06:00
tls-offload-layers.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload-reorder-bad.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload-reorder-good.svg Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tls-offload.rst Documentation: TLS: Add missing counter description 2019-11-05 18:34:06 -08:00
tls.rst Documentation: add TLS offload documentation 2019-05-22 12:18:20 -07:00
tproxy.txt netfilter: doc: Add nf_tables part in tproxy.txt 2018-08-16 19:37:07 +02:00
tuntap.txt net: docs: replace IPX in tuntap documentation 2019-08-08 18:06:53 -07:00
udplite.txt
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vrf.txt net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs 2018-11-07 16:12:38 -08:00
vxlan.txt
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x25-iface.txt
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x25.txt
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xfrm_device.txt net: switch secpath to use skb extension infrastructure 2018-12-19 11:21:38 -08:00
xfrm_proc.txt xfrm: update the stats documentation 2017-12-22 06:45:48 +01:00
xfrm_sync.txt Documentation: networking: fix spelling mistakes 2016-04-28 14:21:13 -04:00
xfrm_sysctl.txt
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z8530book.rst docs-rst: convert scsi DocBook to ReST 2017-05-16 08:44:15 -03:00
z8530drv.txt
…