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Message-ID: <20231018123558.552453-1-ivecera@redhat.com>
Date:   Wed, 18 Oct 2023 14:35:55 +0200
From:   Ivan Vecera <ivecera@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Jacob Keller <jacob.e.keller@...el.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        linux-doc@...r.kernel.org (open list:DOCUMENTATION),
        linux-kernel@...r.kernel.org (open list),
        intel-wired-lan@...ts.osuosl.org (moderated list:INTEL ETHERNET DRIVERS)
Subject: [PATCH net-next] i40e: Align devlink info versions with ice driver and add docs

Align devlink info versions with ice driver so change 'fw.mgmt'
version to be 2-digit version [major.minor], add 'fw.mgmt.build'
that reports mgmt firmware build number and use '"fw.psid.api'
for NVM format version instead of incorrect '"fw.psid'.
Additionally add missing i40e devlink documentation.

Fixes: 5a423552e0d9 ("i40e: Add handler for devlink .info_get")
Cc: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Ivan Vecera <ivecera@...hat.com>
---
 Documentation/networking/devlink/i40e.rst     | 59 +++++++++++++++++++
 Documentation/networking/devlink/index.rst    |  1 +
 .../net/ethernet/intel/i40e/i40e_devlink.c    | 18 +++++-
 3 files changed, 75 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/networking/devlink/i40e.rst

diff --git a/Documentation/networking/devlink/i40e.rst b/Documentation/networking/devlink/i40e.rst
new file mode 100644
index 000000000000..d3cb5bb5197e
--- /dev/null
+++ b/Documentation/networking/devlink/i40e.rst
@@ -0,0 +1,59 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+i40e devlink support
+====================
+
+This document describes the devlink features implemented by the ``i40e``
+device driver.
+
+Info versions
+=============
+
+The ``i40e`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+    :widths: 5 5 5 90
+
+    * - Name
+      - Type
+      - Example
+      - Description
+    * - ``board.id``
+      - fixed
+      - K15190-000
+      - The Product Board Assembly (PBA) identifier of the board.
+    * - ``fw.mgmt``
+      - running
+      - 9.130
+      - 2-digit version number of the management firmware that controls the
+        PHY, link, etc.
+    * - ``fw.mgmt.api``
+      - running
+      - 1.15
+      - 2-digit version number of the API exported over the AdminQ by the
+        management firmware. Used by the driver to identify what commands
+        are supported.
+    * - ``fw.mgmt.build``
+      - running
+      - 73618
+      - Build number of the source for the management firmware.
+    * - ``fw.undi``
+      - running
+      - 1.3429.0
+      - Version of the Option ROM containing the UEFI driver. The version is
+        reported in ``major.minor.patch`` format. The major version is
+        incremented whenever a major breaking change occurs, or when the
+        minor version would overflow. The minor version is incremented for
+        non-breaking changes and reset to 1 when the major version is
+        incremented. The patch version is normally 0 but is incremented when
+        a fix is delivered as a patch against an older base Option ROM.
+    * - ``fw.psid.api``
+      - running
+      - 9.30
+      - Version defining the format of the flash contents.
+    * - ``fw.bundle_id``
+      - running
+      - 0x8000e5f3
+      - Unique identifier of the firmware image file that was loaded onto
+        the device. Also referred to as the EETRACK identifier of the NVM.
diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst
index b49749e2b9a6..2b78060aaa58 100644
--- a/Documentation/networking/devlink/index.rst
+++ b/Documentation/networking/devlink/index.rst
@@ -52,6 +52,7 @@ parameters, info versions, and other features it supports.
    bnxt
    etas_es58x
    hns3
+   i40e
    ionic
    ice
    mlx4
diff --git a/drivers/net/ethernet/intel/i40e/i40e_devlink.c b/drivers/net/ethernet/intel/i40e/i40e_devlink.c
index 9168ade8da47..74bc111b4849 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_devlink.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_devlink.c
@@ -18,8 +18,14 @@ static void i40e_info_fw_mgmt(struct i40e_hw *hw, char *buf, size_t len)
 {
 	struct i40e_adminq_info *aq = &hw->aq;
 
-	snprintf(buf, len, "%u.%u.%05d",
-		 aq->fw_maj_ver, aq->fw_min_ver, aq->fw_build);
+	snprintf(buf, len, "%u.%u", aq->fw_maj_ver, aq->fw_min_ver);
+}
+
+static void i40e_info_fw_mgmt_build(struct i40e_hw *hw, char *buf, size_t len)
+{
+	struct i40e_adminq_info *aq = &hw->aq;
+
+	snprintf(buf, len, "%05d", aq->fw_build);
 }
 
 static void i40e_info_fw_api(struct i40e_hw *hw, char *buf, size_t len)
@@ -77,6 +83,12 @@ static int i40e_devlink_info_get(struct devlink *dl,
 	if (err)
 		return err;
 
+	i40e_info_fw_mgmt_build(hw, buf, sizeof(buf));
+	err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,
+				    "fw.mgmt.build", buf);
+	if (err)
+		return err;
+
 	i40e_info_fw_api(hw, buf, sizeof(buf));
 	err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,
 				    DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
@@ -86,7 +98,7 @@ static int i40e_devlink_info_get(struct devlink *dl,
 
 	i40e_info_nvm_ver(hw, buf, sizeof(buf));
 	err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,
-				    DEVLINK_INFO_VERSION_GENERIC_FW_PSID, buf);
+				    "fw.psid.api", buf);
 	if (err)
 		return err;
 
-- 
2.41.0

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