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SubjectRE: [PATCH v6 0/9] Add Error Disconnect Recover (EDR) support

-----Original Message-----
From: sathyanarayanan kuppuswamy <>
Sent: Friday, July 26, 2019 6:31 PM
To: Keith Busch
Cc:;;;;; Bolen, Austin; Nguyen, Huong
Subject: Re: [PATCH v6 0/9] Add Error Disconnect Recover (EDR) support


+Austin , Huong

On 7/26/19 2:53 PM, Keith Busch wrote:
> On Fri, Jul 26, 2019 at 02:43:10PM -0700, wrote:
>> From: Kuppuswamy Sathyanarayanan
>> <>
>> This patchset adds support for following features:
>> 1. Error Disconnect Recover (EDR) support.
>> 2. _OSC based negotiation support for DPC.
>> You can find EDR spec in the following link.
> Thank you for sticking with this. I've reviewed the series and I think
> this looks good for the next merge window.
> Acked-by: Keith Busch <>

Tested on a DPC-enabled PCIe switch (Broadcom PEX9733) in a Dell PowerEdge R740xd. Injected fatal and non-fatal errors on an NVMe endpoint below the switch and on the switch downstream port itself and verified errors were contained and then recovered at the PCIe level.

Tested-by: Huong Nguyen <‎>
Sathyanarayanan Kuppuswamy
Linux kernel developer

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