Chelsio T420-BT (dual port 10Gbase-T NIC)

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i386

Well-Known Member
Mar 18, 2016
4,220
1,540
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Germany
According to the mellanox spec sheets the connectx-2 cards Support sr-iov and rdma.
The cards are so cheap because they are end of life and the support was dropped by dell, hp and others.
 

Jeff Robertson

Active Member
Oct 18, 2016
429
115
43
Chico, CA
Thanks, that is good to know! I'll start with a couple of the connectx-2 cards then, I don't mind saving money. Now I just need to find an sfp+ card for my qnap tvs-1282, I know qnap re-brands someones cards but their version is crazy expensive.
 

HomeLabber

Member
Dec 13, 2015
39
19
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thinking about grabbing a few of these. I have intel x540-t2's deployed and I am kicking myself for their lack of RDMA support
 

trumee

Member
Jan 31, 2016
222
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Can somebody post the output using ethtool?

After updating to the latest Chelsio firmware my card got bricked and i get
Code:
#ethtool  -i enp7s0f4
driver: cxgb4
version: 2.12.0.3
firmware-version: N/A
bus-info: 0000:07:00.4
supports-statistics: yes
supports-test: no
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
Notice the firmware version is N/A. Additionally dmesg shows
Code:
[ 5085.606784] Chelsio T4/T5/T6 Offload Network Driver - version 2.12.0.3
[ 5085.607066] cxgb4 0000:07:00.4: Firmware reports adapter error: During Device Preparation
[ 5085.607067] cxgb4 0000:07:00.4: Firmware failed to return Configuration Space register 16, err = 6
[ 5085.607074] cxgb4 0000:07:00.4: Firmware reports adapter error: During Device Preparation
[ 5085.607077] cxgb4 0000:07:00.4: Firmware reports adapter error: During Device Preparation
[ 5085.607078] cxgb4 0000:07:00.4: could not connect to FW, error 6
[ 5085.607079] cxgb4 0000:07:00.4: Adapter initialization failed, error 6.  Continuing in debug mode
[ 5085.612872] cxgb4 0000:07:00.4 enp7s0f4: renamed from eth0
[ 5085.612885] DMA buffer at bus address 0xffff0000, virtual 0xffff8806b0ce0000
[ 5085.612909] enp7s0f4: Chelsio T420-BT rev 2 BASE-Fiber_XFI NIC , non-Offload capable
[ 5085.612910] enp7s0f4: S/N: PT03150623, P/N: 110115240D0