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From:   Sean Anderson <sean.anderson@seco.com>
To:     "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Madalin Bucur <madalin.bucur@nxp.com>, netdev@vger.kernel.org
Cc:     Paolo Abeni <pabeni@redhat.com>,
        Eric Dumazet <edumazet@google.com>,
        linux-arm-kernel@lists.infradead.org,
        Russell King <linux@armlinux.org.uk>,
        linux-kernel@vger.kernel.org,
        Sean Anderson <sean.anderson@seco.com>,
        Heiner Kallweit <hkallweit1@gmail.com>
Subject: [PATCH net-next v3 05/47] net: phy: Add 1000BASE-KX interface mode
Date:   Fri, 15 Jul 2022 17:59:12 -0400
Message-Id: <20220715215954.1449214-6-sean.anderson@seco.com>
In-Reply-To: <20220715215954.1449214-1-sean.anderson@seco.com>
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Add 1000BASE-KX interface mode. This 1G backplane ethernet as described in
clause 70. Clause 73 autonegotiation is mandatory, and only full duplex
operation is supported.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---

Changes in v3:
- New

 drivers/net/phy/phylink.c | 1 +
 include/linux/phy.h       | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 9bd69328dc4d..b08716fe22c1 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -344,6 +344,7 @@ void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface,
 	case PHY_INTERFACE_MODE_1000BASEX:
 		caps |= MAC_1000HD;
 		fallthrough;
+	case PHY_INTERFACE_MODE_1000BASEKX:
 	case PHY_INTERFACE_MODE_TRGMII:
 		caps |= MAC_1000FD;
 		break;
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 87638c55d844..81ce76c3e799 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -115,6 +115,7 @@ extern const int phy_10gbit_features_array[1];
  * @PHY_INTERFACE_MODE_25GBASER: 25G BaseR
  * @PHY_INTERFACE_MODE_USXGMII:  Universal Serial 10GE MII
  * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
+ * @PHY_INTERFACE_MODE_1000BASEKX: 1000Base-KX - with Clause 73 AN
  * @PHY_INTERFACE_MODE_MAX: Book keeping
  *
  * Describes the interface between the MAC and PHY.
@@ -152,6 +153,7 @@ typedef enum {
 	PHY_INTERFACE_MODE_USXGMII,
 	/* 10GBASE-KR - with Clause 73 AN */
 	PHY_INTERFACE_MODE_10GKR,
+	PHY_INTERFACE_MODE_1000BASEKX,
 	PHY_INTERFACE_MODE_MAX,
 } phy_interface_t;
 
@@ -249,6 +251,8 @@ static inline const char *phy_modes(phy_interface_t interface)
 		return "trgmii";
 	case PHY_INTERFACE_MODE_1000BASEX:
 		return "1000base-x";
+	case PHY_INTERFACE_MODE_1000BASEKX:
+		return "1000base-kx";
 	case PHY_INTERFACE_MODE_2500BASEX:
 		return "2500base-x";
 	case PHY_INTERFACE_MODE_5GBASER:
-- 
2.35.1.1320.gc452695387.dirty