* Spurious DLLSC on a x4x4 NVMe
@ 2024-05-31 21:11 alan.adamson
2024-05-31 22:02 ` alan.adamson
2024-06-01 7:27 ` Lukas Wunner
0 siblings, 2 replies; 3+ messages in thread
From: alan.adamson @ 2024-05-31 21:11 UTC (permalink / raw)
To: linux-pci; +Cc: jonathan.derrick, ",lukas"
Back in 2021/2022 there where discussions about issues when hot removing
a bifurcated x4x4 device from a x8 slot. I could not find any resolution
or applied fix for this.
https://patchwork.kernel.org/project/linux-pci/patch/20210830155628.130054-1-jonathan.derrick@linux.dev/
Was there ever a resolution?
Alan Adamson
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Spurious DLLSC on a x4x4 NVMe
2024-05-31 21:11 Spurious DLLSC on a x4x4 NVMe alan.adamson
@ 2024-05-31 22:02 ` alan.adamson
2024-06-01 7:27 ` Lukas Wunner
1 sibling, 0 replies; 3+ messages in thread
From: alan.adamson @ 2024-05-31 22:02 UTC (permalink / raw)
To: linux-pci; +Cc: jonathan.derrick, lukas
Fixed Lukas' email address.
On 5/31/24 2:11 PM, alan.adamson@oracle.com wrote:
> Back in 2021/2022 there where discussions about issues when hot
> removing a bifurcated x4x4 device from a x8 slot. I could not find any
> resolution or applied fix for this.
>
> https://patchwork.kernel.org/project/linux-pci/patch/20210830155628.130054-1-jonathan.derrick@linux.dev/
>
>
> Was there ever a resolution?
>
>
> Alan Adamson
>
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Spurious DLLSC on a x4x4 NVMe
2024-05-31 21:11 Spurious DLLSC on a x4x4 NVMe alan.adamson
2024-05-31 22:02 ` alan.adamson
@ 2024-06-01 7:27 ` Lukas Wunner
1 sibling, 0 replies; 3+ messages in thread
From: Lukas Wunner @ 2024-06-01 7:27 UTC (permalink / raw)
To: alan.adamson; +Cc: linux-pci, jonathan.derrick
On Fri, May 31, 2024 at 02:11:56PM -0700, alan.adamson@oracle.com wrote:
> Back in 2021/2022 there where discussions about issues when hot removing a
> bifurcated x4x4 device from a x8 slot. I could not find any resolution or
> applied fix for this.
>
> https://patchwork.kernel.org/project/linux-pci/patch/20210830155628.130054-1-jonathan.derrick@linux.dev/
>
> Was there ever a resolution?
No, there wasn't.
I proposed a patch in this e-mail:
https://lore.kernel.org/linux-pci/20220924073208.GA26243@wunner.de/
...but it seems nobody actually tested it for the bifurcation use case.
Thanks,
Lukas
^ permalink raw reply [flat|nested] 3+ messages in thread
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2024-05-31 21:11 Spurious DLLSC on a x4x4 NVMe alan.adamson
2024-05-31 22:02 ` alan.adamson
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