linux-kernel - [PATCH] sfc: Export fibre-specific link modes for 1/10G

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Message-Id: <20211018183709.124744-1-erik@kryo.se>
Date:   Mon, 18 Oct 2021 20:37:08 +0200
From:   Erik Ekman <erik@...o.se>
To:     Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Erik Ekman <erik@...o.se>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] sfc: Export fibre-specific link modes for 1/10G

These modes were added to ethtool.h in 5711a98221443 ("net: ethtool: add support
for 1000BaseX and missing 10G link modes") back in 2016.

Only setting CR mode for 10G, similar to how 25/40/50/100G modes are set up.

Tested using SFN5122F-R7 (with 2 SFP+ ports) and a 1000BASE-BX10 SFP module.
Before:

$ ethtool ext
Settings for ext:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseT/Full
	                        10000baseT/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: FIBRE
	PHYAD: 255
	Transceiver: internal
        Current message level: 0x000020f7 (8439)
                               drv probe link ifdown ifup rx_err tx_err hw
	Link detected: yes

After:

$ ethtool ext
Settings for ext:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseX/Full
	                        10000baseCR/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: FIBRE
	PHYAD: 255
	Transceiver: internal
	Supports Wake-on: g
	Wake-on: d
        Current message level: 0x000020f7 (8439)
                               drv probe link ifdown ifup rx_err tx_err hw
	Link detected: yes

Signed-off-by: Erik Ekman <erik@...o.se>
---
 drivers/net/ethernet/sfc/mcdi_port_common.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/sfc/mcdi_port_common.c b/drivers/net/ethernet/sfc/mcdi_port_common.c
index 4bd3ef8f3384..e84cdcb6a595 100644
--- a/drivers/net/ethernet/sfc/mcdi_port_common.c
+++ b/drivers/net/ethernet/sfc/mcdi_port_common.c
@@ -133,9 +133,9 @@ void mcdi_to_ethtool_linkset(u32 media, u32 cap, unsigned long *linkset)
 	case MC_CMD_MEDIA_QSFP_PLUS:
 		SET_BIT(FIBRE);
 		if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
-			SET_BIT(1000baseT_Full);
+			SET_BIT(1000baseX_Full);
 		if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
-			SET_BIT(10000baseT_Full);
+			SET_BIT(10000baseCR_Full);
 		if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
 			SET_BIT(40000baseCR4_Full);
 		if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN))
@@ -192,9 +192,11 @@ u32 ethtool_linkset_to_mcdi_cap(const unsigned long *linkset)
 		result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
 	if (TEST_BIT(1000baseT_Half))
 		result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
-	if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full))
+	if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full) ||
+	    TEST_BIT(1000baseX_Full))
 		result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
-	if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full))
+	if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full) ||
+	    TEST_BIT(10000baseCR_Full))
 		result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
 	if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full))
 		result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN);
-- 
2.31.1