AER event in NTB

AER event in NTB

[Grace Zhuang]

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On Purley platform, have any AER event/msi will be reported in dmesg?
I found there was a ntb-aer branch, but it was maintained before 2015.



Grace Zhuang(庄燕子）
Diagnostics Engineer
+86-21-61006028 ext:7637
13917171202
gzhuang@celestica.com
www.celestica.com

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Re: AER event in NTB

[Dave Jiang]

On 07/01/2018 09:33 PM, Grace Zhuang wrote:
> On Purley platform, have any AER event/msi will be reported in dmesg?
> I found there was a ntb-aer branch, but it was maintained before 2015.

Intel NTB does not support standard PCIe AER. Support was never added
for it. I think that branch was Jon playing around with the proprietary
support. I don't believe it ties into the Linux standard PCIe AER
framework.

Re: AER event in NTB

[Grace Zhuang]

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Thanks Dave.
I studied Intel documents these days.
I found In SKX_EDS_vol2B_546833_Rev1_7.pdf :

In Figure 4-1 NTB Internal Endpoint
    There is Vendor-Specific Advanced Error Reporting Capability.
But in Figure 4-4 NTB External Endpoint
    There is standard Advanced Error Reporting Capability.


Grace Zhuang(庄燕子）
Diagnostics Engineer
+86-21-61006028 ext:7637
13917171202
gzhuang@celestica.com
www.celestica.com

On Tue, Jul 3, 2018 at 12:09 AM, Dave Jiang <dave.jiang@intel.com> wrote:

>
>
> On 07/01/2018 09:33 PM, Grace Zhuang wrote:
> > On Purley platform, have any AER event/msi will be reported in dmesg?
> > I found there was a ntb-aer branch, but it was maintained before 2015.
>
> Intel NTB does not support standard PCIe AER. Support was never added
> for it. I think that branch was Jon playing around with the proprietary
> support. I don't believe it ties into the Linux standard PCIe AER
> framework.
>

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Re: AER event in NTB

[Dave Jiang]

On 07/13/2018 01:25 AM, Grace Zhuang wrote:
> Thanks Dave. 
> I studied Intel documents these days.
> I found In SKX_EDS_vol2B_546833_Rev1_7.pdf :
> 
> In Figure 4-1 NTB Internal Endpoint 
>     There is Vendor-Specific Advanced Error Reporting Capability.
> But in Figure 4-4 NTB External Endpoint 
>     There is standard Advanced Error Reporting Capability.

As far as I know the standard report mechanism is not supported by the
hardware.

> 
> 
> Grace Zhuang(庄燕子）
> Diagnostics Engineer
> +86-21-61006028 ext:7637
> 13917171202
> gzhuang@celestica.com <mailto:gzhuang@celestica.com>
> www.celestica.com <http://www.celestica.com> 
> 
> On Tue, Jul 3, 2018 at 12:09 AM, Dave Jiang <dave.jiang@intel.com
> <mailto:dave.jiang@intel.com>> wrote:
> 
> 
> 
>     On 07/01/2018 09:33 PM, Grace Zhuang wrote:
>     > On Purley platform, have any AER event/msi will be reported in dmesg?
>     > I found there was a ntb-aer branch, but it was maintained before 2015.
> 
>     Intel NTB does not support standard PCIe AER. Support was never added
>     for it. I think that branch was Jon playing around with the proprietary
>     support. I don't believe it ties into the Linux standard PCIe AER
>     framework.
> 
>