SFP+ on PRO/10GbE

[Pieper, Jeffrey E]

Hi Dan,

Intel(R) Ethernet Server Adapter X520-2 only supports Intel-branded optics, however you can bypass that check in the driver by adding the following to /boot/loader.conf:

hw.ix.unsupported_sfp=1

I hope this helps,
Jeff

-----Original Message-----
From: owner-freebsd-net at freebsd.org <owner-freebsd-net at freebsd.org> On Behalf Of Dan Langille
Sent: Saturday, March 21, 2020 3:25 PM
To: freebsd-net at freebsd.org
Subject: SFP+ on PRO/10GbE

Hello,

I have an PRO/10GbE in a Dell R720, running FreeBSD 12.1, connected to a Unifi US-16-X switch. At present it is using an SFP transceiver. I wanted to move to SFP+.

I am not sure which card this is.  The iDRAC tells me:

* Integrated NIC 1 - Intel(R) 2P X520/2P I350 rNDC
* the service tag claims this R720 was configured with a Intel X520 DP 10Gb DA/SFP+
  with part number C63DV. Looking that up, the images I found are consistent with
  what I have in the box. The NIC has room for two transceivers and two ethernet cables.

When the SFP+ transceiver is inserted, this message appears:

  kernel: ix0: Unsupported SFP+ module type was detected.

I don't know if this is:

* the wrong transceiver - I've tried two [1]
* the card firmware rejects anything not on a whitelist [2]
* the transceiver is in the wrong slot [3]
* only does DAC on 10G [4]

Ideas and suggestions please. Thank you.

$ dmesg|grep ix0|head -n 1
ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver> port 0xfcc0-0xfcdf mem 0xd8d00000-0xd8dfffff,0xd8ff8000-0xd8ffbfff irq 36 at device 0.0 numa-domain 0 on pci1

pciconf -lcbv provides this:

ix0 at pci0:1:0:0: class=0x020000 card=0x1f721028 chip=0x10fb8086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82599ES 10-Gigabit SFI/SFP+ Network Connection'
    class      = network
    subclass   = ethernet
    bar   [10] = type Memory, range 64, base 0xd8d00000, size 1048576, enabled
    bar   [18] = type I/O Port, range 32, base 0xfcc0, size 32, enabled
    bar   [20] = type Memory, range 64, base 0xd8ff8000, size 16384, enabled
    cap 01[40] = powerspec 3  supports D0 D3  current D0
    cap 05[50] = MSI supports 1 message, 64 bit, vector masks 
    cap 11[70] = MSI-X supports 64 messages, enabled
                 Table in map 0x20[0x0], PBA in map 0x20[0x2000]
    cap 10[a0] = PCI-Express 2 endpoint max data 256(512) FLR RO NS
                 link x8(x8) speed 5.0(5.0) ASPM disabled(L0s)
    cap 03[e0] = VPD
    ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
    ecap 0003[140] = Serial 1 ecf4bbffffc0bda0
    ecap 000e[150] = ARI 1
    ecap 0010[160] = SR-IOV 1 IOV disabled, Memory Space disabled, ARI disabled
                     0 VFs configured out of 64 supported
                     First VF RID Offset 0x0180, VF RID Stride 0x0002
                     VF Device ID 0x10ed
                     Page Sizes: 4096 (enabled), 8192, 65536, 262144, 1048576, 4194304



[1] - The working 1G SFP is a Fiberstore SFP1G-SX-85. I have tried a Fiberstore SFP-10GSR-85
      and a Avago AFBR-703SDZ

[2] - https://forums.servethehome.com/index.php?threads/patching-intel-x520-eeprom-to-unlock-all-sfp-transceivers.24634/

[3] - there are two slots for transceiver in this unit - I thought I read something
      about one being different from the other, but I cannot locate that now.
      I tried inserting a second SFP+ into the second slot, but nothing seemed to change.
      I suspect it is just for lagg.

[4] - https://forums.freebsd.org/threads/intel-x520-da2-or-x520-sr2.72173/

-- 
  Dan Langille
  dan at langille.org
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