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---Problem Description--- On IBM Power 7 platforms with new P7 PCI Host Bridge, Emulex PCIe adapters require a fundamental reset, rather than the default hot-reset to recover from ioa pci bus errors. Latest version this has been seen on was RHEL 6.1 SS3. ---Additional Hardware Info--- IBM P7 Platforms with new P7 PCI Host Bridges: 9179-MHB 9179-MHC 8406-70Y 8406-71Y 8205-E6B 8202-E4B 8231-E2B 8231-E1C 8231-E2C 9119-FHB 9125-F2C ---uname output--- Linux isquad1.austin.ibm.com 2.6.32-130.el6.ppc64 #1 SMP Tue Apr 5 19:52:26 EDT 2011 ppc64 ppc64 ---Steps to Reproduce--- Use powerpc errinjct tool to inject PCI IOA bus error on Emulex PCIe adapter. Observe adapter fails to recover, due to time out of mailbox 0x88, CONFIG_PORT command. lpfc 0002:01:00.0: 0:0442 Adapter failed to init, mbxCmd x88 CONFIG_PORT, mbxStatus x0 Data: x0 lpfc 0002:01:00.0: 0:0442 Adapter failed to init, mbxCmd x88 CONFIG_PORT, mbxStatus x0 Data: x0 Patch has been submitted to Emulex for review and submission to Red Hat. Patch has been tested on various P7 and P6 platforms with both PCIe and PCI-X adapters. Testing confirmed there were no regressions and that patch allows recovery of injected EEH errors in all cases tested. Patch affects only Power PC platforms and does not affect AER recovery paths on Intel architecture platforms. Without this patch, customers using newer P7 platforms could be exposed to system crash or loss of access to data should an unexpected pci bus error be detected. With this patch, such pci bus errors would be recovered via Power PC Enhanced Error recovery.
Created attachment 494259 [details] Sets needs_freset on Emulex PCIe adapters
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
------- Comment From rlary.com 2011-06-09 13:02 EDT------- Upstream commit for patch set including lpfc needs freset patch: http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commit;h=0558056c1ecd177f2621fc2a0484d565270f7ae1 - When driver initializing device, if the device is on a PCIe bus, set PCI's "needs fundamental reset" bit so that EEH uses fundamental reset instead of hot reset for recovery.
------- Comment From rlary.com 2011-09-09 11:56 EDT------- Confirmed this patch is present in lpfc driver version 8.3.5.45.2p in RHEL 6.2 kernel 2.6.32-195
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
------- Comment From rlary.com 2011-10-07 14:06 EDT------- (In reply to comment #14) > Since RHEL 6.2 External Beta has begun, and this bug remains > unresolved, it has been rejected as it is not proposed as > exception or blocker. > Red Hat invites you to ask your support representative to > propose this request, if appropriate and relevant, in the > next release of Red Hat Enterprise Linux. Hello, I am assuming this message is some boiler plate message that was blanket attached to bugzillas and the the patch I submitted and tested has not and will not be removed from future RHEL6.2 kernels?
I talked to Richard and this patch came in under feature that updated the driver for RHEL 6.2, and he has confirmed that patch is in the beta build. so closing this bz as we no longer need it. -Steve