Attributes for FDB learned entries were added to the if_link netlink api
for bridge linkinfo but are missing from the rt_link.yaml spec. Add the
missing attributes to the spec.

Fixes: ddd1ad68826d ("net: bridge: Add netlink knobs for number / max learned FDB entries")
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20240503164304.87427-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge in late fixes to prepare for the 6.9 net-next PR.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

The family struct is auto-generated for new families, support
use of the sock_priv_* mechanism added in commit a731132424ad
("genetlink: introduce per-sock family private storage").

For example if the family wants to use struct sk_buff as its
private struct (unrealistic but just for illustration), it would
add to its spec:

  kernel-family:
    headers: [ "linux/skbuff.h" ]
    sock-priv: struct sk_buff

ynl-gen-c will declare the appropriate priv size and hook
in function prototypes to be implemented by the family.

Link: https://lore.kernel.org/r/20240308190319.2523704-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Set eswitch inline-mode to be u8, not u16. Otherwise, errors below

$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev \
  inline-mode network
    Error: Attribute failed policy validation.
    kernel answers: Numerical result out of rang
    netlink: 'devlink': attribute type 26 has an invalid length.

Fixes: f2f9dd164db0 ("netlink: specs: devlink: add the remaining command to generate complete split_ops")
Signed-off-by: William Tu <witu@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240310164547.35219-1-witu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ynl-gen-c.py supports check unterminated-ok, but the yaml schemas don't
have this key. Add this to the yaml files.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240308081239.3281710-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Support using pre-defined values in checks so we don't need to use hard
code number for the string, binary length. e.g. we have a definition like

 #define TEAM_STRING_MAX_LEN 32

Which defined in yaml like:

 definitions:
   -
     name: string-max-len
     type: const
     value: 32

It can be used in the attribute-sets like

attribute-sets:
  -
    name: attr-option
    name-prefix: team-attr-option-
    attributes:
      -
        name: name
        type: string
        checks:
          len: string-max-len

With this patch it will be converted to

[TEAM_ATTR_OPTION_NAME] = { .type = NLA_STRING, .len = TEAM_STRING_MAX_LEN, }

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240311140727.109562-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Rx alloc failures are commonly counted by drivers.
Support reporting those via netdev-genl queue stats.

Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240306195509.1502746-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

The ethtool-nl family does a good job exposing various protocol
related and IEEE/IETF statistics which used to get dumped under
ethtool -S, with creative names. Queue stats don't have a netlink
API, yet, and remain a lion's share of ethtool -S output for new
drivers. Not only is that bad because the names differ driver to
driver but it's also bug-prone. Intuitively drivers try to report
only the stats for active queues, but querying ethtool stats
involves multiple system calls, and the number of stats is
read separately from the stats themselves. Worse still when user
space asks for values of the stats, it doesn't inform the kernel
how big the buffer is. If number of stats increases in the meantime
kernel will overflow user buffer.

Add a netlink API for dumping queue stats. Queue information is
exposed via the netdev-genl family, so add the stats there.
Support per-queue and sum-for-device dumps. Latter will be useful
when subsequent patches add more interesting common stats than
just bytes and packets.

The API does not currently distinguish between HW and SW stats.
The expectation is that the source of the stats will either not
matter much (good packets) or be obvious (skb alloc errors).

Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240306195509.1502746-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

The enum is defined, however the pin capabilities attribute does
refer to it. Add this missing enum field.

This fixes ynl cli output:

Example current output:
$ sudo ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/dpll.yaml --do pin-get --json '{"id": 0}'
{'capabilities': 4,
 ...
Example new output:
$ sudo ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/dpll.yaml --do pin-get --json '{"id": 0}'
{'capabilities': {'state-can-change'},
 ...

Fixes: 3badff3a25d8 ("dpll: spec: Add Netlink spec in YAML")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20240306120739.1447621-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Add a spec for the nlctrl family.

Example usage:

./tools/net/ynl/cli.py \
    --spec Documentation/netlink/specs/nlctrl.yaml \
    --do getfamily --json '{"family-name": "nlctrl"}'

./tools/net/ynl/cli.py \
    --spec Documentation/netlink/specs/nlctrl.yaml \
    --dump getpolicy --json '{"family-name": "nlctrl"}'

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20240306231046.97158-7-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>