https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240576
Bug ID: 240576
Summary: mlxen(4) driver unusable with MT26448
Product: Base System
Version: 12.0-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: yoitsmeremember+f...@gmail.com
I've installed a Mellanox MT26448 based card, which appears to be recognized:
# dmesg|grep mlx4
mlx4_core0: <mlx4_core> mem 0xdf200000-0xdf2fffff,0xdf800000-0xdfffffff irq 22
at device 0.0 on pci4
mlx4_core: Mellanox ConnectX core driver v3.4.1 (October 2017)
mlx4_core: Initializing mlx4_core
mlx4_core0: Unable to determine PCI device chain minimum BW
# pciconf -lcbv mlx4_core0@pci0:4:0:0:
mlx4_core0@pci0:4:0:0: class=0x020000 card=0x002115b3 chip=0x675015b3 rev=0xb0
hdr=0x00
vendor = 'Mellanox Technologies'
device = 'MT26448 [ConnectX EN 10GigE, PCIe 2.0 5GT/s]'
class = network
subclass = ethernet
bar [10] = type Memory, range 64, base 0xdf200000, size 1048576, enabled
bar [18] = type Prefetchable Memory, range 64, base 0xdf800000, size
8388608, enabled
cap 01[40] = powerspec 3 supports D0 D3 current D0
cap 03[48] = VPD
cap 11[9c] = MSI-X supports 128 messages, enabled
Table in map 0x10[0x7c000], PBA in map 0x10[0x7d000]
cap 10[60] = PCI-Express 2 endpoint max data 128(256) FLR
link x8(x8) speed 5.0(5.0) ASPM disabled(L0s)
ecap 000e[100] = ARI 1
ecap 0003[148] = Serial 1 0002c90300529b42
However, the interface never appears in ifconfig, and is therefore unusable.
If it will help I can give devs a remote shell account to a machine with the
card in it.
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