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80 commits

Author SHA1 Message Date
Davide Caratti bc8aeb2045 Documentation: netlink: add a YAML spec for mptcp
it describes most of the current netlink interface (uAPI definitions,
doit/dumpit operations and attributes)

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/340
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-1-v2-4-16b1f701f900@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24 13:00:31 -07:00
Davide Caratti 0c63ad3795 tools: ynl-gen: add support for exact-len validation
add support for 'exact-len' validation on netlink attributes.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/340
Acked-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-1-v2-2-16b1f701f900@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24 13:00:31 -07:00
Davide Caratti 52c121f4bf tools: ynl: add uns-admin-perm to genetlink legacy
this flag maps to GENL_UNS_ADMIN_PERM and will be used by future specs.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-1-v2-1-16b1f701f900@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24 13:00:31 -07:00
Jiri Pirko f2f9dd164d netlink: specs: devlink: add the remaining command to generate complete split_ops
Currently, some of the commands are not described in devlink yaml file
and are manually filled in net/devlink/netlink.c in small_ops. To make
all part of split_ops, add definitions of the rest of the commands
alongside with needed attributes and enums.

Note that this focuses on the kernel side. The requests are fully
described in order to generate split_op alongside with policies.
Follow-up will describe the replies in order to make the userspace
helpers complete.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-9-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-23 16:16:32 -07:00
Jiri Pirko 6cc8ad97c1 netlink: specs: devlink: make dont-validate single line
Make dont-validate field more compact and push it into a single line.

Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-6-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-23 16:12:46 -07:00
Jiri Pirko c48066b0cc netlink: specs: devlink: remove reload-action from devlink-get cmd reply
devlink-get command does not contain reload-action attr in reply.
Remove it.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-5-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-23 16:12:46 -07:00
Jiri Pirko 4e2846fd66 tools: ynl-gen: introduce support for bitfield32 attribute type
Introduce support for attribute type bitfield32.
Note that since the generated code works with struct nla_bitfield32,
the generator adds netlink.h to the list of includes for userspace
headers in case any bitfield32 is present.

Note that this is added only to genetlink-legacy scheme as requested
by Jakub Kicinski.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-3-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-23 16:12:46 -07:00
Jakub Kicinski 7d4caf54d2 netlink: specs: add support for auto-sized scalars
Support uint / sint types in specs and YNL.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-20 11:43:35 +01:00
Jakub Kicinski f9bc3cbc20 tools: ynl-gen: support limit names
Support the use of symbolic names like s8-min or u32-max in checks
to make writing specs less painful.

Link: https://lore.kernel.org/r/20231018163917.2514503-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-19 15:54:56 -07:00
Jakub Kicinski 668c1ac828 tools: ynl-gen: support full range of min/max checks for integer values
Extend the support to full range of min/max checks.
None of the existing YNL families required complex integer validation.

The support is less than trivial, because we try to keep struct nla_policy
tiny the min/max members it holds in place are s16. Meaning we can only
express checks in range of s16. For larger ranges we need to define
a structure and link it in the policy.

Link: https://lore.kernel.org/r/20231018163917.2514503-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-19 15:54:56 -07:00
Jakub Kicinski 041c3466f3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

net/mac80211/key.c
  02e0e426a2 ("wifi: mac80211: fix error path key leak")
  2a8b665e6b ("wifi: mac80211: remove key_mtx")
  7d6904bf26 ("Merge wireless into wireless-next")
https://lore.kernel.org/all/20231012113648.46eea5ec@canb.auug.org.au/

Adjacent changes:

drivers/net/ethernet/ti/Kconfig
  a602ee3176 ("net: ethernet: ti: Fix mixed module-builtin object")
  98bdeae950 ("net: cpmac: remove driver to prepare for platform removal")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-19 13:29:01 -07:00
Arkadiusz Kubalewski c3c6ab95c3 dpll: spec: add support for pin-dpll signal phase offset/adjust
Add attributes for providing the user with:
- measurement of signals phase offset between pin and dpll
- ability to adjust the phase of pin signal

Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 16:08:24 +01:00
Jiri Pirko 0f4d44f6ee netlink: specs: devlink: fix reply command values
Make sure that the command values used for replies are correct. This is
only affecting generated userspace helpers, no change on kernel code.

Fixes: 7199c86247 ("netlink: specs: devlink: add commands that do per-instance dump")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231012115811.298129-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-13 17:27:27 -07:00
Jiri Pirko 0f07415ebb netlink: specs: don't allow version to be specified for genetlink
There is no good reason to specify the version for new protocols.
Forbid it in genetlink schema.

If the future proves me wrong, this restriction could be easily lifted.

Move the version definition in between legacy properties
in genetlink-legacy.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231010074810.191177-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-11 13:25:05 -07:00
Jiri Pirko 7049fd5df7 netlink: specs: remove redundant type keys from attributes in subsets
No longer needed to define type for subset attributes. Remove those.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231006114436.1725425-3-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-09 19:44:57 -07:00
Jiri Pirko e18f3dc2be tools: ynl-gen: lift type requirement for attribute subsets
In case an attribute is used in a subset, the type has to be currently
specified. As the attribute is already defined in the original set, this
is a redundant information in yaml file, moreover, may lead to
inconsistencies.

Example:
attribute-sets:
    ...
    name: pin
    enum-name: dpll_a_pin
    attributes:
      ...
      -
        name: parent-id
        type: u32
      ...
  -
    name: pin-parent-device
    subset-of: pin
    attributes:
      -
        name: parent-id
        type: u32             <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Remove the requirement from schema files to specify the "type" for
attribute subsets.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231006114436.1725425-2-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-09 19:44:57 -07:00
Jakub Kicinski 0629f22ec1 ynl: netdev: drop unnecessary enum-as-flags
enum-as-flags can be used when enum declares bit positions but
we want to carry bitmask in an attribute. If the definition
is already provided as flags there's no need to indicate
the flag-iness of the attribute.

Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20231003153416.2479808-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-04 17:33:54 -07:00
Chuck Lever 160f404495 handshake: Fix sign of key_serial_t fields
key_serial_t fields are signed integers. Use nla_get/put_s32 for
those to avoid implicit signed conversion in the netlink protocol.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/169530167716.8905.645746457741372879.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-02 12:34:21 -07:00
Chuck Lever a6b07a51b1 handshake: Fix sign of socket file descriptor fields
Socket file descriptors are signed integers. Use nla_get/put_s32 for
those to avoid implicit signed conversion in the netlink protocol.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/169530165057.8905.8650469415145814828.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-02 12:34:21 -07:00
David S. Miller 685c6d5b2c Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
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 79 files changed, 5275 insertions(+), 600 deletions(-).

The main changes are:

1) Basic BTF validation in libbpf, from Andrii Nakryiko.

2) bpf_assert(), bpf_throw(), exceptions in bpf progs, from Kumar Kartikeya Dwivedi.

3) next_thread cleanups, from Oleg Nesterov.

4) Add mcpu=v4 support to arm32, from Puranjay Mohan.

5) Add support for __percpu pointers in bpf progs, from Yonghong Song.

6) Fix bpf tailcall interaction with bpf trampoline, from Leon Hwang.

7) Raise irq_work in bpf_mem_alloc while irqs are disabled to improve refill probabablity, from Hou Tao.

Please consider pulling these changes from:

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

Thanks a lot!

Also thanks to reporters, reviewers and testers of commits in this pull-request:

Alan Maguire, Andrey Konovalov, Dave Marchevsky, "Eric W. Biederman",
Jiri Olsa, Maciej Fijalkowski, Quentin Monnet, Russell King (Oracle),
Song Liu, Stanislav Fomichev, Yonghong Song
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-17 15:12:06 +01:00
Vadim Fedorenko 3badff3a25 dpll: spec: Add Netlink spec in YAML
Add a protocol spec for DPLL.
Add code generated from the spec.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-17 11:50:20 +01:00
Stanislav Fomichev a9c2a60854 bpf: expose information about supported xdp metadata kfunc
Add new xdp-rx-metadata-features member to netdev netlink
which exports a bitmask of supported kfuncs. Most of the patch
is autogenerated (headers), the only relevant part is netdev.yaml
and the changes in netdev-genl.c to marshal into netlink.

Example output on veth:

$ ip link add veth0 type veth peer name veth1 # ifndex == 12
$ ./tools/net/ynl/samples/netdev 12

Select ifc ($ifindex; or 0 = dump; or -2 ntf check): 12
   veth1[12]    xdp-features (23): basic redirect rx-sg xdp-rx-metadata-features (3): timestamp hash xdp-zc-max-segs=0

Cc: netdev@vger.kernel.org
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230913171350.369987-3-sdf@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-09-15 11:26:58 -07:00
Donald Hunter 023289b4f5 doc/netlink: Add spec for rt route messages
Add schema for rt route with support for getroute, newroute and
delroute.

Routes can be dumped with filter attributes like this:

./tools/net/ynl/cli.py \
    --spec Documentation/netlink/specs/rt_route.yaml \
    --dump getroute --json '{"rtm-family": 2, "rtm-table": 254}'

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-13-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:17:11 -07:00
Donald Hunter b2f63d904e doc/netlink: Add spec for rt link messages
Add schema for rt link with support for newlink, dellink, getlink,
setlink and getstats.

A dummy link can be created like this:

sudo ./tools/net/ynl/cli.py \
    --spec Documentation/netlink/specs/rt_link.yaml \
    --do newlink --create \
    --json '{"ifname": "dummy0", "linkinfo": {"kind": "dummy"}}'

For example, offload stats can be fetched like this:

./tools/net/ynl/cli.py \
    --spec Documentation/netlink/specs/rt_link.yaml \
    --dump getstats --json '{ "filter-mask": 8 }'

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-12-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:17:11 -07:00
Donald Hunter dfb0f7d9d9 doc/netlink: Add spec for rt addr messages
Add schema for rt addr with support for:
     - newaddr, deladdr, getaddr (dump)

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-11-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:17:10 -07:00
Donald Hunter ed68c58c0e doc/netlink: Add a schema for netlink-raw families
This schema is largely a copy of the genetlink-legacy schema with the
following modifications:

 - change the schema id to netlink-raw
 - add a top-level protonum property, e.g. 0 (for NETLINK_ROUTE)
 - change the protocol enumeration to netlink-raw, removing the
   genetlink options.
 - replace doc references to generic netlink with raw netlink
 - add a value property to mcast-group definitions

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-3-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:17:09 -07:00
Donald Hunter c4e1ab07b5 doc/netlink: Fix typo in genetlink-* schemas
Fix typo verion -> version in genetlink-c and genetlink-legacy.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-2-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:17:09 -07:00
Donald Hunter 52d08fda35 doc/netlink: Add delete operation to ovs_vport spec
Add del operation to the spec to help with testing.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824142221.71339-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 18:58:34 -07:00
Jakub Kicinski e83d4e9b2d netlink: specs: fix indent in fou
Fix up the indentation. This has no functional effect, AFAICT.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824003056.1436637-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24 19:04:20 -07:00
Jakub Kicinski ded67d9081 netlink: specs: add ovs_vport new command
Add NEW to the spec, it was useful testing the fix for OvS
input validation.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230814205627.2914583-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-15 19:18:34 -07:00
Jiri Pirko 0149bca172 netlink: specs: devlink: extend health reporter dump attributes by port index
Allow user to pass port index for health reporter dump request.

Re-generate the related code.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-14-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-14 11:47:25 -07:00
Jiri Pirko 34493336e7 netlink: specs: devlink: extend per-instance dump commands to accept instance attributes
Extend per-instance dump command definitions to accept instance
attributes. Allow parsing of devlink handle attributes so they could
be used for instance selection.

Re-generate the related code.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-12-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-14 11:47:25 -07:00
Jiri Pirko 7199c86247 netlink: specs: devlink: add commands that do per-instance dump
Add the definitions for the commands that do per-instance dump
and re-generate the related code.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-8-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-14 11:47:25 -07:00
Jiri Pirko 6b7c486cae devlink: add split ops generated according to spec
Improve the existing devlink spec in order to serve as a source for
generation of valid devlink split ops for the existing commands.
Add the generated sources.

Node that the policies are narrowed down only to the attributes that
are actually parsed. The dont-validate-strict parsing policy makes sure
that other possibly passed garbage attributes from userspace are
ignored during validation.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-11-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04 14:03:01 -07:00
Jiri Pirko 759f661012 netlink: specs: devlink: add info-get dump op
Add missing dump op for info-get command and re-generate related
devlink-user.[ch] code.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-10-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04 14:03:01 -07:00
Jiri Pirko 78c96d7b7c netlink: specs: add dump-strict flag for dont-validate property
Allow user to specify GENL_DONT_VALIDATE_DUMP_STRICT flag for validation
and add this flag to netlink spec schema.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-2-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04 14:03:00 -07:00
Stanislav Fomichev e5c157f081 ynl: expose xdp-zc-max-segs
Also rename it to dashes, to match the rest. And fix unrelated
spelling error while we're at it.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230727163001.3952878-2-sdf@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-28 09:33:12 -07:00
Maciej Fijalkowski 13ce2daa25 xsk: add new netlink attribute dedicated for ZC max frags
Introduce new netlink attribute NETDEV_A_DEV_XDP_ZC_MAX_SEGS that will
carry maximum fragments that underlying ZC driver is able to handle on
TX side. It is going to be included in netlink response only when driver
supports ZC. Any value higher than 1 implies multi-buffer ZC support on
underlying device.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20230719132421.584801-11-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-19 09:56:49 -07:00
Donald Hunter 334f39ce17 netlink: specs: add display hints to ovs_flow
Add display hints for mac, ipv4, ipv6, hex and uuid to the ovs_flow
schema.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230623201928.14275-4-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-24 15:45:49 -07:00
Donald Hunter 737eab775d netlink: specs: add display-hint to schema definitions
Add a display-hint property to the netlink schema that is for providing
optional hints to generic netlink clients about how to display attribute
values. A display-hint on an attribute definition is intended for
letting a client such as ynl know that, for example, a u32 should be
rendered as an ipv4 address. The display-hint enumeration includes a
small number of networking domain-specific value types.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230623201928.14275-2-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-24 15:45:49 -07:00
Donald Hunter 6907217a80 netlink: specs: fixup openvswitch specs for code generation
Refine the ovs_* specs to align exactly with the ovs netlink UAPI
definitions to enable code generation.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230615151405.77649-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-17 00:18:00 -07:00
Jakub Kicinski 68335713d2 netlink: specs: ethtool: mark pads as pads
Pad is a separate type. Even though in practice they can
only be a u32 the value should be discarded.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:03 +01:00
Jakub Kicinski 709d0c3b3d netlink: specs: ethtool: untangle stats-get
Code gen for stats is a bit of a challenge, but from looking
at the attrs I think that the format isn't quite right.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:03 +01:00
Jakub Kicinski 37c8522227 netlink: specs: ethtool: untangle UDP tunnels and cable test a bit
UDP tunnel and cable test messages have a lot of nests,
which do not match the names of the enum entries in C uAPI.
Some of the structure / nesting also looks wrong.

Untangle this a little bit based on the names, comments and
educated guesses, I haven't actually tested the results.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:03 +01:00
Jakub Kicinski 180ad45527 netlink: specs: ethtool: add empty enum stringset
C does not allow defining structures and enums with the same name.
Since enum ethtool_stringset exists in the uAPI we need to include
at least a stub of it in the spec. This will trigger name collision
avoidance in the code gen.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:03 +01:00
Jakub Kicinski d4813b11d6 netlink: specs: ethtool: add C render hints
Most of the C enum names are guessed correctly, but there
is a handful of corner cases we need to name explicitly.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:03 +01:00
Jakub Kicinski ed2042cc77 netlink: specs: support setting prefix-name per attribute
Ethtool's PSE PoDL has a attr nest with different prefixes:

/* Power Sourcing Equipment */
enum {
	ETHTOOL_A_PSE_UNSPEC,
	ETHTOOL_A_PSE_HEADER,			/* nest - _A_HEADER_* */
	ETHTOOL_A_PODL_PSE_ADMIN_STATE,		/* u32 */
	ETHTOOL_A_PODL_PSE_ADMIN_CONTROL,	/* u32 */
	ETHTOOL_A_PODL_PSE_PW_D_STATUS,		/* u32 */

Header has a prefix of ETHTOOL_A_PSE_ and other attrs prefix of
ETHTOOL_A_PODL_PSE_ we can't cover them uniformly.
If PODL was after PSE life would be easy.

Now we either need to add prefixes to attr names which is yucky
or support setting prefix name per attr.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 11:01:02 +01:00
Jakub Kicinski 8947e50373 netlink: specs: devlink: fill in some details important for C
Python YNL is much more forgiving than the C code gen in terms
of the spec completeness. Fill in a handful of devlink details
to make the spec usable in C.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-08 14:01:10 -07:00
Jakub Kicinski 449f6bc17a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

net/sched/sch_taprio.c
  d636fc5dd6 ("net: sched: add rcu annotations around qdisc->qdisc_sleeping")
  dced11ef84 ("net/sched: taprio: don't overwrite "sch" variable in taprio_dump_class_stats()")

net/ipv4/sysctl_net_ipv4.c
  e209fee411 ("net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294")
  ccce324dab ("tcp: make the first N SYN RTO backoffs linear")
https://lore.kernel.org/all/20230605100816.08d41a7b@canb.auug.org.au/

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-08 11:35:14 -07:00
Jakub Kicinski f6ca5baf2a netlink: specs: ethtool: fix random typos
Working on the code gen for C reveals typos in the ethtool spec
as the compiler tries to find the names in the existing uAPI
header. Fix the mistakes.

Fixes: a353318ebf ("tools: ynl: populate most of the ethtool spec")
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230605233257.843977-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-06 18:42:20 -07:00