HP FC HBA connection to SAN irregular intermittent with SLES

Hi,

we have a HP FC HBA (AJ763B, which is OEM from Emulex Lpe12000) we try to use with SLES 12 SP3.
But we have constantly intermittent connection. /var/log/messages says:

2018-04-12T21:32:00.576043+02:00 linux-4h4v kernel: [  104.582669] lpfc 0000:02:00.0: 0:1305 Link Down Event x14 received Data: x14 x20 x80011 x0 x0
2018-04-12T21:32:01.056057+02:00 linux-4h4v kernel: [  105.063012] lpfc 0000:02:00.0: 0:1303 Link Up Event x15 received Data: x15 x0 x20 x0 x0 x0 0
2018-04-12T21:32:02.412053+02:00 linux-4h4v kernel: [  106.416386] lpfc 0000:02:00.1: 1:1305 Link Down Event x14 received Data: x14 x20 x80011 x0 x0
2018-04-12T21:32:02.892029+02:00 linux-4h4v kernel: [  106.896799] lpfc 0000:02:00.1: 1:1303 Link Up Event x15 received Data: x15 x0 x20 x0 x0 x0 0
2018-04-12T21:32:10.576062+02:00 linux-4h4v kernel: [  114.583772] lpfc 0000:02:00.0: 0:1305 Link Down Event x16 received Data: x16 x20 x80011 x0 x0
2018-04-12T21:32:11.056026+02:00 linux-4h4v kernel: [  115.064100] lpfc 0000:02:00.0: 0:1303 Link Up Event x17 received Data: x17 x0 x20 x0 x0 x0 0
2018-04-12T21:32:12.412054+02:00 linux-4h4v kernel: [  116.417502] lpfc 0000:02:00.1: 1:1305 Link Down Event x16 received Data: x16 x20 x80011 x0 x0
2018-04-12T21:32:12.892057+02:00 linux-4h4v kernel: [  116.897900] lpfc 0000:02:00.1: 1:1303 Link Up Event x17 received Data: x17 x0 x20 x0 x0 x0 0
2018-04-12T21:32:20.576024+02:00 linux-4h4v kernel: [  124.584815] lpfc 0000:02:00.0: 0:1305 Link Down Event x18 received Data: x18 x20 x80011 x0 x0

The HBA is currently running in a usual desktop pc. When booting that system with different knoppix versions the HBA runs fine and i have connection to the SAN. I tried the most recent drivers from Emulex and HP:
elx-lpfc-kmp-default-11.4.142.26_k4.4.73_5-1.sles12sp3.x86_64
and 11.4.142.21-1. Same error. The HBA is also running fine on a ProLiant Server with SLES 11 SP4.
I’m a bit desperate because i’d like to get it running on SLES 12 SP3 but i’m running out of ideas.
Firmware is also up to date. I changed the optical fibre, no improvement.

Thanks for any help.

Bernd

berndgsflinux,

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