Hi,
I am looking for general help to debug a non-working FC/FCoE setup.
[ if there is a better mailing list for this, please let me know. ]
I have two systems with QLE8152 cards. The cards are connected with an
Intel twinax SFP+ cable. LAN networking between the systems appears to
work fine, but I can't get a working target/initiator connection.
The QLE8152 is a converged networking card with dual ethernet and fibre
channel functionality. The LIO fibre channel page claims the QLE81xxx
cards are supported as of Linux 3.9. I have tested with a variety of
kernel versions from 3.18.17 to 4.1.3.
The initiator system comes up and recognizes the card as an HBA. The
target system (with qla2xxx.qlini_mode = disabled) comes up and I can
configure the target and luns with targetcli.
However, the port state of the cards never proceeds past "Linkdown".
At the time the target is configured in targetcli, I see the
kernel message:
> qla2xxx [0000:02:00.2]-00af:0: Performing ISP error recovery - ha=ffff880414078000.
> qla2xxx [0000:02:00.2]-8038:0: Cable is unplugged...
The Qlogic console CLI tool reports the HBA status on both systems as
"Loop Down, Diagnostic Mode". At boot this starts at "Link Down".
I have looked at all of the kernel /sys/class and /sys module info
and debug logs recommended on the LIO site.
But I feel like I'm missing something basic:
- Obviously I would start by blaming the twinax cable, but LAN
networking seems fine between the same two cards.
- The same target system is working with a separate QLE2462 card over
regular fiber, so it's not a gross system / kernel config issue
(I have a little experience with working FC / targetcli setups.)
- Is the QLE8152 actually supported as an initiator? The LIO page
implies that it should be, and targetcli can configure it. Are
these cards supported in a point-to-point (no switch) connection?
- The LIO page lists the QLE8152 as an FC target, not an FCoE target.
I am naively assuming the drivers and HW will do all of the
extra FCoE setup work to appear as a HBA. Do I need to be
running any separate FCoE daemons or discovery commands to
establish the link outside of targetcli?
- I am relatively new to the world of CNA / converged adapters.
Assuming that the QLE8152 isn't actually supported as an LIO
initiator (whether due to bugs or missing code) do any of the
following configs make sense?
- LAN FCoE initiator to LAN FCoE target using SW FCoE support.
(I assume yes.)
- LAN FCoE initiator (software) to HW FCoE HBA target, i.e.
crossing over the converged networking functionality between
two cards on a point-to-point link.
I assume this should work or HW from different vendors would
not interoperate.
Thanks in advance,
John
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