sfc: Export fibre-specific supported link modes
authorErik Ekman <erik@kryo.se>
Tue, 19 Oct 2021 21:13:32 +0000 (23:13 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 21 Oct 2021 11:38:34 +0000 (12:38 +0100)
The 1/10GbaseT modes were set up for cards with SFP+ cages in
3497ed8c852a5 ("sfc: report supported link speeds on SFP connections").
10GbaseT was likely used since no 10G fibre mode existed.

The missing fibre modes for 1/10G were added to ethtool.h in 5711a9822144
("net: ethtool: add support for 1000BaseX and missing 10G link modes")
shortly thereafter.

The user guide available at https://support-nic.xilinx.com/wp/drivers
lists support for the following cable and transceiver types in section 2.9:
- QSFP28 100G Direct Attach Cables
- QSFP28 100G SR Optical Transceivers (with SR4 modules listed)
- SFP28 25G Direct Attach Cables
- SFP28 25G SR Optical Transceivers
- QSFP+ 40G Direct Attach Cables
- QSFP+ 40G Active Optical Cables
- QSFP+ 40G SR4 Optical Transceivers
- QSFP+ to SFP+ Breakout Direct Attach Cables
- QSFP+ to SFP+ Breakout Active Optical Cables
- SFP+ 10G Direct Attach Cables
- SFP+ 10G SR Optical Transceivers
- SFP+ 10G LR Optical Transceivers
- SFP 1000BASE‐T Transceivers
- 1G Optical Transceivers
(From user guide issue 28. Issue 16 which also includes older cards like
SFN5xxx/SFN6xxx has matching lists for 1/10/40G transceiver types.)

Regarding SFP+ 10GBASE‐T transceivers the latest guide says:
"Solarflare adapters do not support 10GBASE‐T transceiver modules."

Tested using SFN5122F-R7 (with 2 SFP+ ports). Supported link modes do not change
depending on module used (tested with 1000BASE-T, 1000BASE-BX10, 10GBASE-LR).
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:   1000baseT/Full
                        1000baseX/Full
                        10000baseCR/Full
                        10000baseSR/Full
                        10000baseLR/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@kryo.se>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/sfc/mcdi_port_common.c

index 4bd3ef8f3384eb2afef04622518540385b096350..c4fe3c48ac46ab4f4bae0081b52a63e10acc9f66 100644 (file)
@@ -132,16 +132,27 @@ void mcdi_to_ethtool_linkset(u32 media, u32 cap, unsigned long *linkset)
        case MC_CMD_MEDIA_SFP_PLUS:
        case MC_CMD_MEDIA_QSFP_PLUS:
                SET_BIT(FIBRE);
-               if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
+               if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) {
                        SET_BIT(1000baseT_Full);
-               if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
-                       SET_BIT(10000baseT_Full);
-               if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
+                       SET_BIT(1000baseX_Full);
+               }
+               if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) {
+                       SET_BIT(10000baseCR_Full);
+                       SET_BIT(10000baseLR_Full);
+                       SET_BIT(10000baseSR_Full);
+               }
+               if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) {
                        SET_BIT(40000baseCR4_Full);
-               if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN))
+                       SET_BIT(40000baseSR4_Full);
+               }
+               if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN)) {
                        SET_BIT(100000baseCR4_Full);
-               if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN))
+                       SET_BIT(100000baseSR4_Full);
+               }
+               if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN)) {
                        SET_BIT(25000baseCR_Full);
+                       SET_BIT(25000baseSR_Full);
+               }
                if (cap & (1 << MC_CMD_PHY_CAP_50000FDX_LBN))
                        SET_BIT(50000baseCR2_Full);
                break;
@@ -192,15 +203,19 @@ 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) || TEST_BIT(10000baseLR_Full) ||
+                       TEST_BIT(10000baseSR_Full))
                result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
-       if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full))
+       if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full) ||
+                       TEST_BIT(40000baseSR4_Full))
                result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN);
-       if (TEST_BIT(100000baseCR4_Full))
+       if (TEST_BIT(100000baseCR4_Full) || TEST_BIT(100000baseSR4_Full))
                result |= (1 << MC_CMD_PHY_CAP_100000FDX_LBN);
-       if (TEST_BIT(25000baseCR_Full))
+       if (TEST_BIT(25000baseCR_Full) || TEST_BIT(25000baseSR_Full))
                result |= (1 << MC_CMD_PHY_CAP_25000FDX_LBN);
        if (TEST_BIT(50000baseCR2_Full))
                result |= (1 << MC_CMD_PHY_CAP_50000FDX_LBN);