netdev - [PATCH net-next 2/3] net: dpaa2-mac: add 1000BASE-X support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <E1l1t35-0005VX-Uj@rmk-PC.armlinux.org.uk>
Date:   Tue, 19 Jan 2021 15:36:03 +0000
From:   Russell King <rmk+kernel@...linux.org.uk>
To:     Ioana Ciornei <ioana.ciornei@....com>,
        Ioana Radulescu <ruxandra.radulescu@....com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH net-next 2/3] net: dpaa2-mac: add 1000BASE-X support

Now that pcs-lynx supports 1000BASE-X, add support for this interface
mode to dpaa2-mac. pcs-lynx can be switched at runtime between SGMII
and 1000BASE-X mode, so allow dpaa2-mac to switch between these as
well.

This commit prepares the ground work for allowing 1G fiber connections
to be used with DPAA2 on the SolidRun CEX7 platforms.

Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
---
 .../net/ethernet/freescale/dpaa2/dpaa2-mac.c  | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
index 69ad869446cf..3ddfb40eb5e4 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
@@ -79,10 +79,20 @@ static bool dpaa2_mac_phy_mode_mismatch(struct dpaa2_mac *mac,
 					phy_interface_t interface)
 {
 	switch (interface) {
+	/* We can switch between SGMII and 1000BASE-X at runtime with
+	 * pcs-lynx
+	 */
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+		if (mac->pcs &&
+		    (mac->if_mode == PHY_INTERFACE_MODE_SGMII ||
+		     mac->if_mode == PHY_INTERFACE_MODE_1000BASEX))
+			return false;
+		return interface != mac->if_mode;
+
 	case PHY_INTERFACE_MODE_10GBASER:
 	case PHY_INTERFACE_MODE_USXGMII:
 	case PHY_INTERFACE_MODE_QSGMII:
-	case PHY_INTERFACE_MODE_SGMII:
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_RXID:
@@ -122,13 +132,17 @@ static void dpaa2_mac_validate(struct phylink_config *config,
 		fallthrough;
 	case PHY_INTERFACE_MODE_SGMII:
 	case PHY_INTERFACE_MODE_QSGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
-		phylink_set(mask, 10baseT_Full);
-		phylink_set(mask, 100baseT_Full);
+		phylink_set(mask, 1000baseX_Full);
 		phylink_set(mask, 1000baseT_Full);
+		if (state->interface == PHY_INTERFACE_MODE_1000BASEX)
+			break;
+		phylink_set(mask, 100baseT_Full);
+		phylink_set(mask, 10baseT_Full);
 		break;
 	default:
 		goto empty_set;
-- 
2.20.1