linux-stable.git/Documentation/networking, branch v5.9

ethtool: add and use message type for tunnel info reply

2020-09-17T23:43:20+00:00

Tunnel offload info code uses ETHTOOL_MSG_TUNNEL_INFO_GET message type (cmd
field in genetlink header) for replies to tunnel info netlink request, i.e.
the same value as the request have. This is a problem because we are using
two separate enums for userspace to kernel and kernel to userspace message
types so that this ETHTOOL_MSG_TUNNEL_INFO_GET (28) collides with
ETHTOOL_MSG_CABLE_TEST_TDR_NTF which is what message type 28 means for
kernel to userspace messages.

As the tunnel info request reached mainline in 5.9 merge window, we should
still be able to fix the reply message type without breaking backward
compatibility.

Fixes: c7d759eb7b12 ("ethtool: add tunnel info interface")
Signed-off-by: Michal Kubecek 
Reviewed-by: Jakub Kicinski 
Signed-off-by: David S. Miller

doc: net: dsa: Fix typo in config code sample

2020-09-03T17:38:22+00:00

In the "single port" example code for configuring a DSA switch without
tagging support from userspace the command to bring up the "lan2" link
was typo'd.

Signed-off-by: Paul Barker 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

docs: networking: bonding.rst resources section cleanup

2020-08-14T23:44:20+00:00

Removed obsolete resources from bonding.rst doc:
   - bonding-devel@lists.sourceforge.net hasn't been used since 2008
   - admin interface is 404
   - Donald Becker's domain/content no longer online

Signed-off-by: Nivedita Singhvi 
Acked-by: Jay Vosburgh 
Signed-off-by: David S. Miller

Merge tag 'wireless-drivers-next-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

2020-08-04T19:57:02+00:00

Kalle Valo says:

====================
wireless-drivers-next patches for v5.9

Second set of patches for v5.9. mt76 has most of patches this time.
Otherwise it's just smaller fixes and cleanups to other drivers.

There was a major conflict in mt76 driver between wireless-drivers and
wireless-drivers-next. I solved that by merging the former to the
latter.

Major changes:

rtw88

* add support for ieee80211_ops::change_interface

* add support for enabling and disabling beacon

* add debugfs file for testing h2c

mt76

* ARP filter offload for 7663

* runtime power management for 7663

* testmode support for mfg calibration

* support for more channels
====================

Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2020-08-04T01:27:40+00:00

Daniel Borkmann says:

====================
pull-request: bpf-next 2020-08-04

The following pull-request contains BPF updates for your *net-next* tree.

We've added 73 non-merge commits during the last 9 day(s) which contain
a total of 135 files changed, 4603 insertions(+), 1013 deletions(-).

The main changes are:

1) Implement bpf_link support for XDP. Also add LINK_DETACH operation for the BPF
   syscall allowing processes with BPF link FD to force-detach, from Andrii Nakryiko.

2) Add BPF iterator for map elements and to iterate all BPF programs for efficient
   in-kernel inspection, from Yonghong Song and Alexei Starovoitov.

3) Separate bpf_get_{stack,stackid}() helpers for perf events in BPF to avoid
   unwinder errors, from Song Liu.

4) Allow cgroup local storage map to be shared between programs on the same
   cgroup. Also extend BPF selftests with coverage, from YiFei Zhu.

5) Add BPF exception tables to ARM64 JIT in order to be able to JIT BPF_PROBE_MEM
   load instructions, from Jean-Philippe Brucker.

6) Follow-up fixes on BPF socket lookup in combination with reuseport group
   handling. Also add related BPF selftests, from Jakub Sitnicki.

7) Allow to use socket storage in BPF_PROG_TYPE_CGROUP_SOCK-typed programs for
   socket create/release as well as bind functions, from Stanislav Fomichev.

8) Fix an info leak in xsk_getsockopt() when retrieving XDP stats via old struct
   xdp_statistics, from Peilin Ye.

9) Fix PT_REGS_RC{,_CORE}() macros in libbpf for MIPS arch, from Jerry Crunchtime.

10) Extend BPF kernel test infra with skb->family and skb->{local,remote}_ip{4,6}
    fields and allow user space to specify skb->dev via ifindex, from Dmitry Yakunin.

11) Fix a bpftool segfault due to missing program type name and make it more robust
    to prevent them in future gaps, from Quentin Monnet.

12) Consolidate cgroup helper functions across selftests and fix a v6 localhost
    resolver issue, from John Fastabend.
====================

Signed-off-by: David S. Miller

Merge tag 'mlx5-updates-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

2020-08-04T01:24:30+00:00

Saeed Mahameed says:

====================
mlx5-updates-2020-08-03

This patchset introduces some updates to mlx5 driver.

1) Jakub converts mlx5 to use the new udp tunnel infrastructure.
   Starting with a hack to allow drivers to request a static configuration
   of the default vxlan port, and then a patch that converts mlx5.

2) Parav implements change_carrier ndo for VF eswitch representors,
   to speedup link state control of representors netdevices.

3) Alex Vesker, makes a simple update to software steering to fix an issue
   with push vlan action sequence

4) Leon removes a redundant dump stack on error flow.
====================

Signed-off-by: David S. Miller

devlink: Add early_drop trap

2020-08-04T01:06:46+00:00

Add the packet trap that can report packets that were ECN marked due to RED
AQM.

Signed-off-by: Amit Cohen 
Signed-off-by: Petr Machata 
Reviewed-by: Jiri Pirko 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

udp_tunnel: add the ability to hard-code IANA VXLAN

2020-08-03T17:13:54+00:00

mlx5 has the IANA VXLAN port (4789) hard coded by the device,
instead of being added dynamically when tunnels are created.

To support this add a workaround flag to struct udp_tunnel_nic_info.
Skipping updates for the port is fairly trivial, dumping the hard
coded port via ethtool requires some code duplication. The port
is not a part of any real table, we dump it in a special table
which has no tunnel types supported and only one entry.

This is the last known workaround / hack needed to convert
all drivers to the new infra.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Saeed Mahameed

ipw2x00: Replace HTTP links with HTTPS ones

2020-08-02T15:15:38+00:00

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20200718100240.98593-1-grandmaster@al2klimov.de

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-08-02T08:02:12+00:00

Resolved kernel/bpf/btf.c using instructions from merge commit
69138b34a7248d2396ab85c8652e20c0c39beaba

Signed-off-by: David S. Miller