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linux-stable/Documentation/networking
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Danielle Ratson 012ce4dd31 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>
2021-02-03 18:37:28 -08:00
..
caif net: caif: Remove unused caif SPI driver 2020-09-29 14:02:53 -07:00
device_drivers mlx5 subfunction support 2021-01-28 16:57:19 -08:00
devlink mlx5 subfunction support 2021-01-28 16:57:19 -08:00
dsa doc: net: dsa: Fix typo in config code sample 2020-09-03 10:38:22 -07:00
mac80211_hwsim
6lowpan.rst docs: networking: convert 6lowpan.txt to ReST 2020-02-28 14:52:36 +01:00
6pack.rst docs: networking: convert 6pack.txt to ReST 2020-04-28 14:38:38 -07:00
af_xdp.rst xsk: Documentation for XDP_SHARED_UMEM between queues and netdevs 2020-08-31 21:18:00 +02:00
alias.rst
arcnet-hardware.rst docs: networking: arcnet-hardware.rst: don't duplicate chapter names 2020-05-01 12:24:43 -07:00
arcnet.rst Documentation: networking: arcnet: drop doubled word 2020-07-04 17:46:21 -07:00
atm.rst docs: networking: convert atm.txt to ReST 2020-04-28 14:38:38 -07:00
ax25.rst Documentation: networking: ax25: drop doubled word 2020-07-04 17:46:21 -07:00
bareudp.rst Documentation: bareudp: Corrected description of bareudp module. 2020-07-28 17:53:03 -07:00
batman-adv.rst batman-adv: Fix typos and grammar in documentation 2020-06-26 10:36:30 +02:00
bonding.rst bonding: add a vlan+srcmac tx hashing option 2021-01-19 19:30:32 -08:00
bridge.rst
can.rst can: update documentation for DLC usage in Classical CAN 2020-11-20 12:05:14 +01:00
can_ucan_protocol.rst Documentation: networking: can_ucan_protocol: drop doubled words 2020-07-04 17:46:21 -07:00
cdc_mbim.rst docs: networking: convert cdc_mbim.txt to ReST 2020-04-28 14:38:39 -07:00
checksum-offloads.rst docs: networking: convert netdev-features.txt to ReST 2020-04-30 12:56:36 -07:00
dccp.rst net: dccp: Add SIOCOUTQ IOCTL support (send buffer fill) 2020-07-22 17:00:37 -07:00
dctcp.rst docs: networking: convert dctcp.txt to ReST 2020-04-28 14:38:39 -07:00
decnet.rst docs: networking: convert decnet.txt to ReST 2020-04-28 14:39:45 -07:00
dns_resolver.rst docs: networking: convert dns_resolver.txt to ReST 2020-04-28 14:39:46 -07:00
driver.rst docs: networking: convert driver.txt to ReST 2020-04-28 14:39:46 -07:00
eql.rst docs: networking: convert eql.txt to ReST 2020-04-28 14:39:46 -07:00
ethtool-netlink.rst ethtool: Extend link modes settings uAPI with lanes 2021-02-03 18:37:28 -08:00
failover.rst
fib_trie.rst docs: networking: convert fib_trie.txt to ReST 2020-04-28 14:39:46 -07:00
filter.rst bpf: Document new atomic instructions 2021-01-14 18:34:30 -08:00
gen_stats.rst docs: networking: convert gen_stats.txt to ReST 2020-04-28 14:39:46 -07:00
generic-hdlc.rst docs: networking: convert generic-hdlc.txt to ReST 2020-04-28 14:39:46 -07:00
generic_netlink.rst docs: networking: convert generic_netlink.txt to ReST 2020-04-28 14:39:46 -07:00
gtp.rst docs: networking: convert gtp.txt to ReST 2020-04-28 14:39:46 -07:00
ieee802154.rst docs: net: ieee802154.rst: fix C expressions 2020-10-15 07:49:41 +02:00
ila.rst docs: networking: convert ila.txt to ReST 2020-04-28 14:39:47 -07:00
index.rst net/tipc: add TIPC chapter to networking Documentation 2020-12-01 15:38:39 -08:00
ip-sysctl.rst net: ipv6: Emit notification when fib hardware flags are changed 2021-02-02 17:45:59 -08:00
ip_dynaddr.rst docs: networking: convert ip_dynaddr.txt to ReST 2020-04-28 14:39:47 -07:00
ipddp.rst docs: networking: convert ipddp.txt to ReST 2020-04-28 14:39:47 -07:00
ipsec.rst docs: networking: convert ipsec.txt to ReST 2020-04-28 14:39:47 -07:00
ipv6.rst docs: networking: convert ipv6.txt to ReST 2020-04-28 14:40:18 -07:00
ipvlan.rst docs: networking: convert ipvlan.txt to ReST 2020-04-28 14:40:18 -07:00
ipvs-sysctl.rst Documentation: networking: ipvs-sysctl: drop doubled word 2020-07-04 17:46:21 -07:00
j1939.rst can: j1939: add tables for the CAN identifier and its fields 2020-11-20 09:43:29 +01:00
kapi.rst wimax: move out to staging 2020-10-29 19:27:45 +01:00
kcm.rst docs: networking: convert kcm.txt to ReST 2020-04-28 14:40:19 -07:00
l2tp.rst docs: networking: add tracepoint info to l2tp.rst 2020-08-22 12:44:37 -07:00
lapb-module.rst docs: networking: convert lapb-module.txt to ReST 2020-04-30 12:56:35 -07:00
mac80211-auth-assoc-deauth.txt
mac80211-injection.rst doc: networking: wireless: fix wiki website url 2020-06-08 10:05:53 +02:00
mpls-sysctl.rst docs: networking: convert mpls-sysctl.txt to ReST 2020-04-30 12:56:36 -07:00
mptcp-sysctl.rst docs: networking: mptcp: Add MPTCP sysctl entries 2020-11-04 17:45:53 -08:00
msg_zerocopy.rst
multiqueue.rst docs: networking: convert multiqueue.txt to ReST 2020-04-30 12:56:36 -07:00
net_dim.rst docs: networking: add full DIM API 2020-04-10 18:11:04 -07:00
net_failover.rst docs: networking: net_failover: Fix a few typos 2020-03-03 16:07:02 -08:00
netconsole.rst docs: networking: convert netconsole.txt to ReST 2020-04-30 12:56:36 -07:00
netdev-FAQ.rst docs: netdev-FAQ: fix question headers formatting 2020-12-22 19:28:24 -08:00
netdev-features.rst docs: networking: convert netdev-features.txt to ReST 2020-04-30 12:56:36 -07:00
netdevices.rst docs: net: explain struct net_device lifetime 2021-01-08 19:27:41 -08:00
netfilter-sysctl.rst docs: networking: convert netfilter-sysctl.txt to ReST 2020-04-30 12:56:36 -07:00
netif-msg.rst docs: networking: convert netif-msg.txt to ReST 2020-04-30 12:56:36 -07:00
nf_conntrack-sysctl.rst docs: networking: convert nf_conntrack-sysctl.txt to ReST 2020-04-30 12:56:36 -07:00
nf_flowtable.rst docs: nf_flowtable: fix typo. 2020-10-20 13:54:53 +02:00
nfc.rst docs: networking: nfc: change to rst format 2019-11-23 11:00:19 -08:00
openvswitch.rst docs: networking: convert openvswitch.txt to ReST 2020-04-30 12:56:36 -07:00
operstates.rst docs: networking: convert operstates.txt to ReST 2020-04-30 12:56:37 -07:00
packet_mmap.rst docs: networking: packet_mmap: fix old config reference 2021-01-04 13:21:46 -08:00
page_pool.rst net: page_pool: Add page_pool_put_page_bulk() to page_pool.rst 2020-11-24 14:56:54 -08:00
phonet.rst docs: networking: convert phonet.txt to ReST 2020-04-30 12:56:37 -07:00
phy.rst net: phy: Add 100 base-x mode 2021-01-14 15:40:33 -08:00
pktgen.rst docs: networking: convert pktgen.txt to ReST 2020-04-30 12:56:37 -07:00
plip.rst docs: networking: convert PLIP.txt to ReST 2020-04-30 12:56:37 -07:00
ppp_generic.rst docs: update ppp_generic.rst to document new ioctls 2020-12-10 13:57:36 -08:00
proc_net_tcp.rst docs: networking: convert proc_net_tcp.txt to ReST 2020-04-30 12:56:37 -07:00
radiotap-headers.rst docs: networking: convert radiotap-headers.txt to ReST 2020-04-30 12:56:37 -07:00
rds.rst docs: networking: convert rds.txt to ReST 2020-04-30 12:56:37 -07:00
regulatory.rst doc: networking: wireless: fix wiki website url 2020-06-08 10:05:53 +02:00
rxrpc.rst Documentation: networking: rxrpc: drop doubled word 2020-07-04 17:46:21 -07:00
scaling.rst docs: networking: update XPS to account for netif_set_xps_queue 2020-10-13 16:21:54 -07:00
sctp.rst docs: networking: convert sctp.txt to ReST 2020-04-30 12:56:38 -07:00
secid.rst docs: networking: convert secid.txt to ReST 2020-04-30 12:56:38 -07:00
seg6-sysctl.rst docs: networking: convert seg6-sysctl.txt to ReST 2020-04-30 12:56:38 -07:00
segmentation-offloads.rst
sfp-phylink.rst doc: sfp-phylink: correct code indentation 2020-03-03 15:33:55 -08:00
snmp_counter.rst net-next: docs: Fix typos in snmp_counter.rst 2021-01-05 17:07:38 -08:00
statistics.rst docs: net: statistics.rst: remove a duplicated kernel-doc 2020-10-28 11:26:10 -06:00
strparser.rst docs: networking: convert strparser.txt to ReST 2020-04-30 12:56:38 -07:00
switchdev.rst docs: networking: convert switchdev.txt to ReST 2020-04-30 12:56:38 -07:00
sysfs-tagging.rst Documentation: better locations for sysfs-pci, sysfs-tagging 2020-10-09 09:33:23 -06:00
tc-actions-env-rules.rst docs: networking: convert tc-actions-env-rules.txt to ReST 2020-04-30 12:56:38 -07:00
tcp-thin.rst docs: networking: convert tcp-thin.txt to ReST 2020-04-30 12:56:38 -07:00
team.rst docs: networking: convert team.txt to ReST 2020-04-30 12:56:38 -07:00
timestamping.rst docs: networking: timestamping: fix section title markup 2021-01-29 19:14:23 -08:00
tipc.rst net/tipc: add TIPC chapter to networking Documentation 2020-12-01 15:38:39 -08:00
tls-offload-layers.svg
tls-offload-reorder-bad.svg
tls-offload-reorder-good.svg
tls-offload.rst net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled 2021-01-19 15:58:05 -08:00
tls.rst
tproxy.rst docs: networking: convert tproxy.txt to ReST 2020-04-30 12:56:38 -07:00
tuntap.rst docs: networking: convert tuntap.txt to ReST 2020-05-01 12:24:40 -07:00
udplite.rst docs: networking: convert udplite.txt to ReST 2020-05-01 12:24:40 -07:00
vrf.rst docs: networking: convert vrf.txt to ReST 2020-05-01 12:24:40 -07:00
vxlan.rst docs: vxlan: add info about device features 2020-09-28 12:50:12 -07:00
x25-iface.rst docs: networking: convert x25-iface.txt to ReST 2020-05-01 12:24:40 -07:00
x25.rst net: x25: Remove unimplemented X.25-over-LLC code stubs 2020-12-12 17:15:33 -08:00
xfrm_device.rst docs: networking: convert xfrm_device.txt to ReST 2020-05-01 12:24:40 -07:00
xfrm_proc.rst docs: networking: convert xfrm_proc.txt to ReST 2020-05-01 12:24:40 -07:00
xfrm_sync.rst docs: networking: convert xfrm_sync.txt to ReST 2020-05-01 12:24:41 -07:00
xfrm_sysctl.rst docs: networking: convert xfrm_sysctl.txt to ReST 2020-05-01 12:24:41 -07:00