Commit Graph

22 Commits

Author SHA1 Message Date
Chia-Yu Chang
68db0ff2f7 Documentation: netlink: specs: tc: Add DualPI2 specification
Introduce the specification of tc qdisc DualPI2 stats and attributes,
which is the reference implementation of IETF RFC9332 DualQ Coupled AQM
(https://datatracker.ietf.org/doc/html/rfc9332) providing two different
queues: low latency queue (L-queue) and classic queue (C-queue).

Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Link: https://patch.msgid.link/20250722095915.24485-7-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-23 17:52:09 -07:00
Jakub Kicinski
28aa52b618 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc4).

Conflicts:

Documentation/netlink/specs/mptcp_pm.yaml
  9e6dd4c256 ("netlink: specs: mptcp: replace underscores with dashes in names")
  ec362192aa ("netlink: specs: fix up indentation errors")
https://lore.kernel.org/20250626122205.389c2cd4@canb.auug.org.au

Adjacent changes:

Documentation/netlink/specs/fou.yaml
  791a9ed0a4 ("netlink: specs: fou: replace underscores with dashes in names")
  880d43ca9a ("netlink: specs: clean up spaces in brackets")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-26 10:40:50 -07:00
Jakub Kicinski
eef0eaeca7 netlink: specs: tc: replace underscores with dashes in names
We're trying to add a strict regexp for the name format in the spec.
Underscores will not be allowed, dashes should be used instead.
This makes no difference to C (codegen, if used, replaces special
chars in names) but it gives more uniform naming in Python.

Fixes: a1bcfde836 ("doc/netlink/specs: Add a spec for tc")
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250624211002.3475021-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25 15:36:28 -07:00
Donald Hunter
d26552d38c netlink: specs: wrap long doc lines (>80 chars)
Clean up all line too long errors reported by yamllint in the netlink
specs, e.g.

    error    line too long (97 > 80 characters)  (line-length)

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> # mptcp_pm.yaml
Link: https://patch.msgid.link/20250610125944.85265-7-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-11 14:01:19 -07:00
Donald Hunter
2338bab569 netlink: specs: fix up spaces before comments
Clean up all comments warnings reported by yamllint in the netlink specs:

    warning  too few spaces before comment: expected 2  (comments)

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> # mptcp_pm.yaml
Link: https://patch.msgid.link/20250610125944.85265-4-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-11 14:01:19 -07:00
Donald Hunter
ce6bd277e1 netlink: specs: add doc start markers to yaml
Clean up all document-start warnings reported by yamllint in the
netlink specs:

    warning  missing document start "---"  (document-start)

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> # mptcp_pm.yaml
Link: https://patch.msgid.link/20250610125944.85265-2-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-11 14:01:19 -07:00
Jakub Kicinski
33baf6f73a netlink: specs: tc: add qdisc dump to TC spec
Hook TC qdisc dump in the TC qdisc get, it only supported doit
until now and dumping will be used by the sample code.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250520161916.413298-12-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 12:38:23 -07:00
Jakub Kicinski
ba5a199b24 netlink: specs: tc: drop the family name prefix from attrs
All attribute sets and messages are prefixed with tc-.
The C codegen also adds the family name to all structs.
We end up with names like struct tc_tc_act_attrs.
Remove the tc- prefixes to shorten the names.
This should not impact Python as the attr set names
are never exposed to user, they are only used to refer
to things internally, in the encoder / decoder.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250520161916.413298-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 12:38:21 -07:00
Jakub Kicinski
f9aec8025a netlink: specs: tc: add C naming info
Add naming info needed by C code gen.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250520161916.413298-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 12:38:21 -07:00
Jakub Kicinski
eb1f803f98 netlink: specs: tc: use tc-gact instead of tc-gen as struct name
There is a define in the uAPI header called tc_gen which expands
to the "generic" TC action fields. This helps other actions include
the base fields without having to deal with nested structs.

A couple of actions (sample, gact) do not define extra fields,
so the spec used a common tc-gen struct for both of them.
Unfortunately this struct does not exist in C. Let's use gact's
(generic act's) struct for basic actions.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250520161916.413298-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 12:38:21 -07:00
Jakub Kicinski
e9033a846e netlink: specs: tc: remove duplicate nests
tc-act-stats-attrs and tca-stats-attrs are almost identical.
The only difference is that the latter has sub-message decoding
for app, rather than declaring it as a binary attr.

tc-act-police-attrs and tc-police-attrs are identical but for
the TODO annotations.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250520161916.413298-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 12:38:21 -07:00
Jakub Kicinski
f3dd5fb2fa netlink: specs: tc: all actions are indexed arrays
Some TC filters have actions listed as indexed arrays of nests
and some as just nests. They are all indexed arrays, the handling
is common across filters.

Fixes: 2267672a61 ("doc/netlink/specs: Update the tc spec")
Link: https://patch.msgid.link/20250513221638.842532-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-14 19:11:15 -07:00
Jakub Kicinski
a9fb87b8b8 netlink: specs: tc: fix a couple of attribute names
Fix up spelling of two attribute names. These are clearly typoes
and will prevent C codegen from working. Let's treat this as
a fix to get the correction into users' hands ASAP, and prevent
anyone depending on the wrong names.

Fixes: a1bcfde836 ("doc/netlink/specs: Add a spec for tc")
Link: https://patch.msgid.link/20250513221316.841700-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-14 19:11:09 -07:00
Abhinav Saxena
cf6d9fe091 tc: fix typo probabilty in tc.yaml doc
Fix spelling of "probability" in tc.yaml documentation. This corrects
the max-P field description in struct tc_sfq_qopt_v1.

Signed-off-by: Abhinav Saxena <xandfury@gmail.com>
Link: https://patch.msgid.link/20241108195642.139315-1-xandfury@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-09 09:43:13 -08:00
Asbjørn Sloth Tønnesen
880a51a8ab doc: netlink: specs: tc: flower: add enc-flags
Describe key-enc-flags and key-enc-flags-mask.

These are defined similarly to key-flags and key-flags-mask.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240713021911.1631517-11-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15 09:14:39 -07:00
Asbjørn Sloth Tønnesen
bfda5a6313 net/sched: flower: define new tunnel flags
Define new TCA_FLOWER_KEY_FLAGS_* flags for use in struct
flow_dissector_key_control, covering the same flags as
currently exposed through TCA_FLOWER_KEY_ENC_FLAGS.

Put the new flags under FLOW_DIS_F_*. The idea is that we can
later, move the existing flags under FLOW_DIS_F_* as well.

The ynl flag names have been taken from the RFC iproute2 patch.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240713021911.1631517-4-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15 09:14:38 -07:00
Asbjørn Sloth Tønnesen
49ba9fc1c7 doc: netlink: specs: tc: describe flower control flags
Describe the flower control flags, and use them
for key-flags and key-flags-mask.

The flag names have been taken from iproute2.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240713021911.1631517-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15 09:14:37 -07:00
Hangbin Liu
aa6485d813 ynl: rename array-nest to indexed-array
Some implementations, like bonding, has nest array with same attr type.
To support all kinds of entries under one nest array. As discussed[1],
let's rename array-nest to indexed-array, and assuming the value is
a nest by passing the type via sub-type.

[1] https://lore.kernel.org/netdev/20240312100105.16a59086@kernel.org/

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240404063114.1221532-2-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-05 22:32:49 -07:00
Donald Hunter
2dddf8aaf6 doc: netlink: Update tc spec with missing definitions
The tc spec referenced tc-u32-mark and tc-act-police-attrs but did not
define them. The missing definitions were discovered when building the
docs with generated hyperlinks because the hyperlink target labels were
missing.

Add definitions for tc-u32-mark and tc-act-police-attrs.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20240329135021.52534-4-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-01 21:26:02 -07:00
Alessandro Marcolini
70ff9a91e8 doc: netlink: specs: tc: add multi-attr to tc-taprio-sched-entry
Add multi-attr attribute to tc-taprio-sched-entry to specify multiple
entries.

Signed-off-by: Alessandro Marcolini <alessandromarcolini99@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/0ba5088ea715103a2bce83b12e2dcbdaa08da6ac.1706962013.git.alessandromarcolini99@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-06 18:56:19 -08:00
Donald Hunter
2267672a61 doc/netlink/specs: Update the tc spec
Fill in many of the gaps in the tc netlink spec, including stats attrs,
classes and actions. Many documentation strings have also been added.

This is still a work in progress, albeit fairly complete:
 - there are still many attributes left as binary blobs.
 - actions have not had much testing

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240129223458.52046-14-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-31 21:19:19 -08:00
Donald Hunter
a1bcfde836 doc/netlink/specs: Add a spec for tc
This is a work-in-progress spec for tc that covers:
 - most of the qdiscs
 - the flower classifier
 - new, del, get for qdisc, chain, class and filter

Notable omissions:
 - most of the stats attrs are left as binary blobs
 - notifications are not yet implemented

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20231215093720.18774-9-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-18 14:39:44 -08:00