netdev - [PATCH net-next v16 2/6] net: phy: Add 5GBASER interface mode

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Date:   Thu, 14 Jan 2021 05:33:27 +0100
From:   Marek Behún <kabel@...nel.org>
To:     netdev@...r.kernel.org
Cc:     pavana.sharma@...i.com, vivien.didelot@...il.com,
        f.fainelli@...il.com, kuba@...nel.org, lkp@...el.com,
        davem@...emloft.net, ashkan.boldaji@...i.com, andrew@...n.ch,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        olteanv@...il.com,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Marek Behún <kabel@...nel.org>
Subject: [PATCH net-next v16 2/6] net: phy: Add 5GBASER interface mode

From: Pavana Sharma <pavana.sharma@...i.com>

Add 5GBASE-R phy interface mode

Signed-off-by: Pavana Sharma <pavana.sharma@...i.com>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Marek Behún <kabel@...nel.org>
---
 Documentation/networking/phy.rst | 6 ++++++
 include/linux/phy.h              | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst
index b2f7ec794bc8..d7be261b5a8d 100644
--- a/Documentation/networking/phy.rst
+++ b/Documentation/networking/phy.rst
@@ -267,6 +267,12 @@ Some of the interface modes are described below:
     duplex, pause or other settings.  This is dependent on the MAC and/or
     PHY behaviour.
 
+``PHY_INTERFACE_MODE_5GBASER``
+    This is the IEEE 802.3 Clause 129 defined 5GBASE-R protocol. It is
+    identical to the 10GBASE-R protocol defined in Clause 49, with the
+    exception that it operates at half the frequency. Please refer to the
+    IEEE standard for the definition.
+
 ``PHY_INTERFACE_MODE_10GBASER``
     This is the IEEE 802.3 Clause 49 defined 10GBASE-R protocol used with
     various different mediums. Please refer to the IEEE standard for a
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 9effb511acde..548372eb253a 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -106,6 +106,7 @@ extern const int phy_10gbit_features_array[1];
  * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
  * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
  * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
+ * @PHY_INTERFACE_MODE_5GBASER: 5G BaseR
  * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
  * @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface
  * @PHY_INTERFACE_MODE_10GBASER: 10G BaseR
@@ -137,6 +138,7 @@ typedef enum {
 	PHY_INTERFACE_MODE_TRGMII,
 	PHY_INTERFACE_MODE_1000BASEX,
 	PHY_INTERFACE_MODE_2500BASEX,
+	PHY_INTERFACE_MODE_5GBASER,
 	PHY_INTERFACE_MODE_RXAUI,
 	PHY_INTERFACE_MODE_XAUI,
 	/* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
@@ -207,6 +209,8 @@ static inline const char *phy_modes(phy_interface_t interface)
 		return "1000base-x";
 	case PHY_INTERFACE_MODE_2500BASEX:
 		return "2500base-x";
+	case PHY_INTERFACE_MODE_5GBASER:
+		return "5gbase-r";
 	case PHY_INTERFACE_MODE_RXAUI:
 		return "rxaui";
 	case PHY_INTERFACE_MODE_XAUI:
-- 
2.26.2