Re: [PATCH v2] cxl: Flush PSL cache before resetting the adapter

2016-10-05 Thread Michael Ellerman
Andrew Donnellan writes: > On 04/10/16 22:00, Frederic Barrat wrote: >> If the capi link is going down while the PSL owns a dirty cache line, >> any access from the host for that data could lead to an Uncorrectable >> Error. >> So when resetting the capi adapter through sysfs, make sure the PSL >

Re: [PATCH v2] cxl: Flush PSL cache before resetting the adapter

2016-10-04 Thread Andrew Donnellan
On 04/10/16 22:00, Frederic Barrat wrote: If the capi link is going down while the PSL owns a dirty cache line, any access from the host for that data could lead to an Uncorrectable Error. So when resetting the capi adapter through sysfs, make sure the PSL cache is flushed. It won't help if there

Re: [PATCH v2] cxl: Flush PSL cache before resetting the adapter

2016-10-04 Thread Ian Munsie
Acked-by: Ian Munsie

[PATCH v2] cxl: Flush PSL cache before resetting the adapter

2016-10-04 Thread Frederic Barrat
If the capi link is going down while the PSL owns a dirty cache line, any access from the host for that data could lead to an Uncorrectable Error. So when resetting the capi adapter through sysfs, make sure the PSL cache is flushed. It won't help if there are any active Process Elements on the card