1. 02 Oct, 2019 28 commits
  2. 01 Oct, 2019 12 commits
    • Simon Horman's avatar
      dt-bindings: sh_eth convert bindings to json-schema · 37a2fce0
      Simon Horman authored
      Convert Renesas Electronics SH EtherMAC bindings documentation to
      json-schema.  Also name bindings documentation file according to the compat
      string being documented.
      Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
      Reviewed-by: default avatarSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      37a2fce0
    • Peter Fink's avatar
      net: usb: ax88179_178a: allow optionally getting mac address from device tree · 9fb137ae
      Peter Fink authored
      Adopt and integrate the feature to pass the MAC address via device tree
      from asix_device.c (03fc5d4f) also to other ax88179 based asix chips.
      E.g. the bootloader fills in local-mac-address and the driver will then
      pick up and use this MAC address.
      Signed-off-by: default avatarPeter Fink <pfink@christ-es.de>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9fb137ae
    • Nicolas Dichtel's avatar
      ipv6: minor code reorg in inet6_fill_ifla6_attrs() · 0d7982ce
      Nicolas Dichtel authored
      Just put related code together to ease code reading: the memcpy() is
      related to the nla_reserve().
      Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0d7982ce
    • David S. Miller's avatar
      Merge branch 'netdev-altnames' · 7a56493f
      David S. Miller authored
      Jiri Pirko says:
      
      ====================
      net: introduce alternative names for network interfaces
      
      In the past, there was repeatedly discussed the IFNAMSIZ (16) limit for
      netdevice name length. Now when we have PF and VF representors
      with port names like "pfXvfY", it became quite common to hit this limit:
      0123456789012345
      enp131s0f1npf0vf6
      enp131s0f1npf0vf22
      
      Udev cannot rename these interfaces out-of-the-box and user needs to
      create custom rules to handle them.
      
      Also, udev has multiple schemes of netdev names. From udev code:
       * Type of names:
       *   b<number>                             - BCMA bus core number
       *   c<bus_id>                             - bus id of a grouped CCW or CCW device,
       *                                           with all leading zeros stripped [s390]
       *   o<index>[n<phys_port_name>|d<dev_port>]
       *                                         - on-board device index number
       *   s<slot>[f<function>][n<phys_port_name>|d<dev_port>]
       *                                         - hotplug slot index number
       *   x<MAC>                                - MAC address
       *   [P<domain>]p<bus>s<slot>[f<function>][n<phys_port_name>|d<dev_port>]
       *                                         - PCI geographical location
       *   [P<domain>]p<bus>s<slot>[f<function>][u<port>][..][c<config>][i<interface>]
       *                                         - USB port number chain
       *   v<slot>                               - VIO slot number (IBM PowerVM)
       *   a<vendor><model>i<instance>           - Platform bus ACPI instance id
       *   i<addr>n<phys_port_name>              - Netdevsim bus address and port name
      
      One device can be often renamed by multiple patterns at the
      same time (e.g. pci address/mac).
      
      This patchset introduces alternative names for network interfaces.
      Main goal is to:
      1) Overcome the IFNAMSIZ limitation (altname limitation is 128 bytes)
      2) Allow to have multiple names at the same time (multiple udev patterns)
      3) Allow to use alternative names as handle for commands
      
      The patchset introduces two new commands to add/delete list of properties.
      Currently only alternative names are implemented but the ifrastructure
      could be easily extended later on. This is very similar to the list of vlan
      and tunnels being added/deleted to/from bridge ports.
      
      See following examples.
      
      $ ip link
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
          link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
      
      -> Add alternative names for dummy0:
      
      $ ip link prop add dummy0 altname someothername
      $ ip link prop add dummy0 altname someotherveryveryveryverylongname
      $ ip link
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
          link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname someothername
          altname someotherveryveryveryverylongname
      $ ip link show someotherveryveryveryverylongname
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname someothername
          altname someotherveryveryveryverylongname
      
      -> Add bridge brx, add it's alternative name and use alternative names to
         do enslavement.
      
      $ ip link add name brx type bridge
      $ ip link prop add brx altname mypersonalsuperspecialbridge
      $ ip link set someotherveryveryveryverylongname master mypersonalsuperspecialbridge
      $ ip link
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
          link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop master brx state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname someothername
          altname someotherveryveryveryverylongname
      3: brx: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname mypersonalsuperspecialbridge
      
      -> Add ipv4 address to the bridge using alternative name:
      
      $ ip addr add 192.168.0.1/24 dev mypersonalsuperspecialbridge
      $ ip addr show mypersonalsuperspecialbridge
      3: brx: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname mypersonalsuperspecialbridge
          inet 192.168.0.1/24 scope global brx
             valid_lft forever preferred_lft forever
      
      -> Delete one of dummy0 alternative names:
      
      $ ip link prop del dummy0 altname someotherveryveryveryverylongname
      $ ip link
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
          link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop master brx state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname someothername
      3: brx: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname mypersonalsuperspecialbridge
      
      -> Add multiple alternative names at once
      
      $ ip link prop add dummy0 altname a altname b altname c altname d
      $ ip link
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
          link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop master brx state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname someothername
          altname a
          altname b
          altname c
          altname d
      3: brx: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
          link/ether ae:67:a9:67:46:86 brd ff:ff:ff:ff:ff:ff
          altname mypersonalsuperspecialbridge
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7a56493f
    • Jiri Pirko's avatar
      net: rtnetlink: add possibility to use alternative names as message handle · 76c9ac0e
      Jiri Pirko authored
      Extend the basic rtnetlink commands to use alternative interface names
      as a handle instead of ifindex and ifname.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      76c9ac0e
    • Jiri Pirko's avatar
      net: rtnetlink: introduce helper to get net_device instance by ifname · cc6090e9
      Jiri Pirko authored
      Introduce helper function rtnl_get_dev() that gets net_device structure
      instance pointer according to passed ifname or ifname attribute.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cc6090e9
    • Jiri Pirko's avatar
      net: rtnetlink: unify the code in __rtnl_newlink get dev with the rest · 7af12cba
      Jiri Pirko authored
      __rtnl_newlink() code flow is a bit different around tb[IFLA_IFNAME]
      processing comparing to the other places. Change that to be unified with
      the rest.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7af12cba
    • Jiri Pirko's avatar
      net: rtnetlink: put alternative names to getlink message · 88f4fb0c
      Jiri Pirko authored
      Extend exiting getlink info message with list of properties. Now the
      only ones are alternative names.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      88f4fb0c
    • Jiri Pirko's avatar
      net: rtnetlink: add linkprop commands to add and delete alternative ifnames · 36fbf1e5
      Jiri Pirko authored
      Add two commands to add and delete list of link properties. Implement
      the first property type along - alternative ifnames.
      Each net device can have multiple alternative names.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      36fbf1e5
    • Jiri Pirko's avatar
      net: introduce name_node struct to be used in hashlist · ff927412
      Jiri Pirko authored
      Introduce name_node structure to hold name of device and put it into
      hashlist instead of putting there struct net_device directly. Add a
      necessary infrastructure to manipulate the hashlist. This prepares
      the code to use the same hashlist for alternative names introduced
      later in this set.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ff927412
    • Jiri Pirko's avatar
      net: procfs: use index hashlist instead of name hashlist · 6958c97a
      Jiri Pirko authored
      Name hashlist is going to be used for more than just dev->name, so use
      rather index hashlist for iteration over net_device instances.
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6958c97a
    • Eric Dumazet's avatar
      tcp: add ipv6_addr_v4mapped_loopback() helper · be2644aa
      Eric Dumazet authored
      tcp_twsk_unique() has a hard coded assumption about ipv4 loopback
      being 127/8
      
      Lets instead use the standard ipv4_is_loopback() method,
      in a new ipv6_addr_v4mapped_loopback() helper.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      be2644aa