Re: rge(4) RTL8126 simple testing
- Reply: Kevin Lo : "Re: rge(4) RTL8126 simple testing"
- In reply to: Kevin Lo : "Re: rge(4) RTL8126 simple testing"
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Date: Sat, 28 Mar 2026 19:12:56 UTC
On Fri, 27 Mar 2026, Kevin Lo wrote: > On Wed, Mar 04, 2026 at 04:02:37PM -0500, Sean C. Farley wrote: >> >> On Sat, 28 Feb 2026, Sean C. Farley wrote: >> >>> I recently upgraded my home network using a few BrosTrend 5Gb cards >>> (RTL8126) with 14-STABLE (1eb2beb3686c) and the latest commit >>> (3170b35) to the GitHub repo for if_rge. It was either these cards >>> or a couple of Intel X550-T2 cards, but less power and less heat >>> were the deciding factors. >>> >>> For the most part, they seem to work very well, except that they >>> cannot negotiate a 2500Base-T connection. They can negotiate >>> 1000baseT and 5000Base-T. This was with two different cards >>> connecting to two different devices. If manually set, they will try >>> for awhile than fall-back to 1000baseT. >>> >>> One other oddity is that rge0 has "ClockPM disabled", but I have not >>> looked into that. >>> >>> The networking hardware: >>> - 3 BrosTrend 5Gb NIC's[1] (5Gb) >>> - Zyxel NWA130BE[2] (2.5Gb port) >>> - TRENDnet TEG-S591[3] (connected the NIC to its 10Gb port) >>> - Nokia ONT XS-010X-Q[4] (10Gb port) >>> >>> ifconfig: >>> rge0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> >>> metric 0 mtu 1500 >>> options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> capabilities=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> media: Ethernet autoselect (5000Base-T <full-duplex>) >>> status: active >>> supported media: >>> media autoselect >>> media 5000Base-T mediaopt full-duplex >>> media 5000Base-T >>> media 2500Base-T mediaopt full-duplex >>> media 2500Base-T >>> media 1000baseT mediaopt full-duplex >>> media 1000baseT >>> media 100baseTX mediaopt full-duplex >>> media 100baseTX >>> media 10baseT/UTP mediaopt full-duplex >>> media 10baseT/UTP >>> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> >>> drivername: rge0 >>> rge1: >>> flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> >>> metric 0 mtu 1500 >>> options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> capabilities=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> media: Ethernet autoselect (5000Base-T <full-duplex>) >>> status: active >>> supported media: >>> media autoselect >>> media 5000Base-T mediaopt full-duplex >>> media 5000Base-T >>> media 2500Base-T mediaopt full-duplex >>> media 2500Base-T >>> media 1000baseT mediaopt full-duplex >>> media 1000baseT >>> media 100baseTX mediaopt full-duplex >>> media 100baseTX >>> media 10baseT/UTP mediaopt full-duplex >>> media 10baseT/UTP >>> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> >>> drivername: rge1 >>> rge2: >>> flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> >>> metric 0 mtu 1500 >>> options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> capabilities=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> >>> media: Ethernet Other (1000baseT <full-duplex>) >>> status: active >>> supported media: >>> media autoselect >>> media 5000Base-T mediaopt full-duplex >>> media 5000Base-T >>> media 2500Base-T mediaopt full-duplex >>> media 2500Base-T >>> media 1000baseT mediaopt full-duplex >>> media 1000baseT >>> media 100baseTX mediaopt full-duplex >>> media 100baseTX >>> media 10baseT/UTP mediaopt full-duplex >>> media 10baseT/UTP >>> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> >>> drivername: rge2 >>> >>> pciconf: >>> rge0@pci0:1:0:0: class=0x020000 rev=0x01 hdr=0x00 vendor=0x10ec >>> device=0x8126 subvendor=0x10ec subdevice=0x0123 >>> vendor = 'Realtek Semiconductor Co., Ltd.' >>> device = 'RTL8126 5GbE Controller' >>> class = network >>> subclass = ethernet >>> bar [10] = type I/O Port, range 32, base 0xe000, size 256, enabled >>> bar [18] = type Memory, range 64, base 0xf7600000, size 65536, enabled >>> bar [20] = type Memory, range 64, base 0xf7610000, size 16384, enabled >>> cap 01[40] = powerspec 3 supports D0 D1 D2 D3 current D0 >>> cap 05[50] = MSI supports 1 message, 64 bit, vector masks enabled >>> with 1 message >>> cap 10[70] = PCI-Express 2 endpoint MSI 1 max data 256(512) RO >>> max read 512 >>> link x1(x1) speed 8.0(8.0) ASPM disabled(L0s/L1) ClockPM >>> disabled >>> cap 11[b0] = MSI-X supports 32 messages >>> Table in map 0x20[0x0], PBA in map 0x20[0x800] >>> cap 03[d0] = VPD >>> ecap 0001[100] = AER 2 0 fatal 0 non-fatal 1 corrected >>> ecap 0002[148] = VC 1 max VC0 >>> ecap 0003[170] = Serial 1 01000000684ce000 >>> ecap 0019[180] = PCIe Sec 1 lane errors 0 >>> ecap 0017[190] = TPH Requester 1 >>> ecap 0018[21c] = LTR 1 >>> ecap 001e[224] = L1 PM Substates 1 >>> ecap 000b[234] = Vendor [1] ID 0002 Rev 4 Length 256 >>> rge1@pci0:4:0:0: class=0x020000 rev=0x01 hdr=0x00 vendor=0x10ec >>> device=0x8126 subvendor=0x10ec subdevice=0x0123 >>> vendor = 'Realtek Semiconductor Co., Ltd.' >>> device = 'RTL8126 5GbE Controller' >>> class = network >>> subclass = ethernet >>> bar [10] = type I/O Port, range 32, base 0xd000, size 256, enabled >>> bar [18] = type Memory, range 64, base 0xf7500000, size 65536, enabled >>> bar [20] = type Memory, range 64, base 0xf7510000, size 16384, enabled >>> cap 01[40] = powerspec 3 supports D0 D1 D2 D3 current D0 >>> cap 05[50] = MSI supports 1 message, 64 bit, vector masks enabled >>> with 1 message >>> cap 10[70] = PCI-Express 2 endpoint MSI 1 max data 256(512) RO >>> max read 512 >>> link x1(x1) speed 8.0(8.0) ASPM disabled(L0s/L1) ClockPM >>> enabled >>> cap 11[b0] = MSI-X supports 32 messages >>> Table in map 0x20[0x0], PBA in map 0x20[0x800] >>> cap 03[d0] = VPD >>> ecap 0001[100] = AER 2 0 fatal 0 non-fatal 0 corrected >>> ecap 0002[148] = VC 1 max VC0 >>> ecap 0003[170] = Serial 1 01000000684ce000 >>> ecap 0019[180] = PCIe Sec 1 lane errors 0 >>> ecap 0017[190] = TPH Requester 1 >>> ecap 0018[21c] = LTR 1 >>> ecap 001e[224] = L1 PM Substates 1 >>> ecap 000b[234] = Vendor [1] ID 0002 Rev 4 Length 256 >>> rge2@pci0:5:0:0: class=0x020000 rev=0x01 hdr=0x00 vendor=0x10ec >>> device=0x8126 subvendor=0x10ec subdevice=0x0123 >>> vendor = 'Realtek Semiconductor Co., Ltd.' >>> device = 'RTL8126 5GbE Controller' >>> class = network >>> subclass = ethernet >>> bar [10] = type I/O Port, range 32, base 0xc000, size 256, enabled >>> bar [18] = type Memory, range 64, base 0xf7400000, size 65536, enabled >>> bar [20] = type Memory, range 64, base 0xf7410000, size 16384, enabled >>> cap 01[40] = powerspec 3 supports D0 D1 D2 D3 current D0 >>> cap 05[50] = MSI supports 1 message, 64 bit, vector masks enabled >>> with 1 message >>> cap 10[70] = PCI-Express 2 endpoint MSI 1 max data 256(512) RO >>> max read 512 >>> link x1(x1) speed 8.0(8.0) ASPM disabled(L0s/L1) ClockPM >>> enabled >>> cap 11[b0] = MSI-X supports 32 messages >>> Table in map 0x20[0x0], PBA in map 0x20[0x800] >>> cap 03[d0] = VPD >>> ecap 0001[100] = AER 2 0 fatal 0 non-fatal 0 corrected >>> ecap 0002[148] = VC 1 max VC0 >>> ecap 0003[170] = Serial 1 01000000684ce000 >>> ecap 0019[180] = PCIe Sec 1 lane errors 0 >>> ecap 0017[190] = TPH Requester 1 >>> ecap 0018[21c] = LTR 1 >>> ecap 001e[224] = L1 PM Substates 1 >>> ecap 000b[234] = Vendor [1] ID 0002 Rev 4 Length 256 >>> >>> Sean >>> 1. https://www.brostrend.com/products/p2 >>> 2. https://www.zyxel.com/us/en-us/products/wireless/be11000-6-stream-wifi-7-triple-radio-nebulaflex-access-point-nwa130be >>> 3. https://www.trendnet.com/products/2_5g-10g-switches/9-port-multi-gig-switch-TEG-S591-v1 >>> 4. https://www.nokia.com/asset/210704/ >> >> I have spent awhile trying different things yet cannot get these to >> work at 2.5G. The Realtek vendor driver cannot negotiate at 2.5G nor >> can Linux 6.18 (Arch Linux). >> >> Important details: >> - FreeBSD dmesg chip rev: RTL8126_2 (0x64a00000) > > Since all the RTL8126 chip revisions I have on hand are RTL8126_1 > (0x64900000), I went ahead and bought the BrosTrend 5G network card > you recommended. > Purchasing directly from the BrosTrend official website wasn't an > option since they don't ship to Taiwan, so I ordered from Amazon [1] > instead. > Unfortunately, the one I received turned out to be RTL8126_1 as well. > :( > > [1] https://www.amazon.com/dp/B0CYZ9M3LR I take it that the RTL8126_1 cards you have can negotiate to 2.5G? That gives me hope that these can do it too. That is too bad. I guess that the warehouse for Amazon near you has older stock. I appreciate you looking. It is too bad that Realtek does not produce reference cards. Sean P.S. You had to mention Taiwan. Now, I am thinking about delicious food from a night market. :) -- scf@FreeBSD.org