On Tue, 28 Apr 2020 02:45:22 -0400, Suganath Prabu wrote:
> If some issue happens OR if firmware fault occurs then to get the basic
> information developer may ask the customer to reproduce the issue with
> logging level enabled. But most of the basic information needed to
> analyze the issue will be available in ioc’s MPT3SAS_ADAPTER structure
> such as IOCFacts, ioc flags (related to sge, msix, error recovery etc.),
> performance mode type, TMs and internal commands reply status etc. So if
> this MPT3SAS_ADAPTER data is captured into a file whenever some issue
> occurs then developer can get some basic of the information that he needed
> to analyze the issue from this captured data.
> pros
> - Reduces the number of reproductions count,
> - No need to add the printk statements which affects the performance
> when they are added in IO path.
>
> [...]
Applied to 5.8/scsi-queue, thanks!
[1/1] scsi: mpt3sas: Capture IOC data for debugging purposes
https://git.kernel.org/mkp/scsi/c/2b01b293f359
--
Martin K. Petersen Oracle Linux Engineering
