linux-kernel - [PATCH net-next v4 6/7] netlink: specs: Expand the PSE netlink command with C33 pw-limit attributes

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Message-Id: <20240625-feature_poe_power_cap-v4-6-b0813aad57d5@bootlin.com>
Date: Tue, 25 Jun 2024 14:33:51 +0200
From: Kory Maincent <kory.maincent@...tlin.com>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Donald Hunter <donald.hunter@...il.com>, 
 Oleksij Rempel <o.rempel@...gutronix.de>, Jonathan Corbet <corbet@....net>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 Dent Project <dentproject@...uxfoundation.org>, kernel@...gutronix.de, 
 linux-doc@...r.kernel.org, Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH net-next v4 6/7] netlink: specs: Expand the PSE netlink
 command with C33 pw-limit attributes

From: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>

Expand the c33 PSE attributes with power limit to be able to set and get
the PSE Power Interface power limit.

./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do pse-get
             --json '{"header":{"dev-name":"eth1"}}'
{'c33-pse-actual-pw': 1700,
 'c33-pse-admin-state': 3,
 'c33-pse-avail-pw-limit': 97500,
 'c33-pse-pw-class': 4,
 'c33-pse-pw-d-status': 4,
 'c33-pse-pw-limit-ranges': [{'max': 18100, 'min': 15000},
                             {'max': 38000, 'min': 30000},
                             {'max': 65000, 'min': 60000},
                             {'max': 97500, 'min': 90000}],
 'header': {'dev-index': 5, 'dev-name': 'eth1'}}

./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do pse-set
             --json '{"header":{"dev-name":"eth1"},
                      "c33-pse-avail-pw-limit":19000}'
None

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---

Change in v4:
- Add support for c33 pse power limit ranges.
---
 Documentation/netlink/specs/ethtool.yaml | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/netlink/specs/ethtool.yaml b/Documentation/netlink/specs/ethtool.yaml
index 492fad73bf75..f441886c9e45 100644
--- a/Documentation/netlink/specs/ethtool.yaml
+++ b/Documentation/netlink/specs/ethtool.yaml
@@ -906,6 +906,15 @@ attribute-sets:
       -
         name: power-mode
         type: u8
+  -
+    name: c33-pse-pw-limit
+    attributes:
+      -
+        name: min
+        type: u32
+      -
+        name: max
+        type: u32
   -
     name: pse
     attributes:
@@ -954,6 +963,16 @@ attribute-sets:
         name: c33-pse-ext-substate
         type: u32
         name-prefix: ethtool-a-
+      -
+        name: c33-pse-avail-pw-limit
+        type: u32
+        name-prefix: ethtool-a-
+      -
+        name: c33-pse-pw-limit-ranges
+        name-prefix: ethtool-a-
+        type: nest
+        multi-attr: true
+        nested-attributes: c33-pse-pw-limit
   -
     name: rss
     attributes:
@@ -1647,6 +1666,8 @@ operations:
             - c33-pse-actual-pw
             - c33-pse-ext-state
             - c33-pse-ext-substate
+            - c33-pse-avail-pw-limit
+            - c33-pse-pw-limit-ranges
       dump: *pse-get-op
     -
       name: pse-set
@@ -1660,6 +1681,7 @@ operations:
             - header
             - podl-pse-admin-control
             - c33-pse-admin-control
+            - c33-pse-avail-pw-limit
     -
       name: rss-get
       doc: Get RSS params.

-- 
2.34.1