Re: [PATCH v2 2/2] PCI/DPC: Add Error Disconnect Recover (EDR) support

2019-04-10 Thread Bjorn Helgaas
On Wed, Apr 10, 2019 at 03:12:05PM -0700, sathyanarayanan kuppuswamy wrote: > On 4/10/19 11:41 AM, Bjorn Helgaas wrote: > > On Tue, Mar 19, 2019 at 01:47:29PM -0700, > > sathyanarayanan.kuppusw...@linux.intel.com wrote: > > > From: Kuppuswamy Sathyanarayanan > > > > > > > > > As per PCI

Re: [PATCH v2 2/2] PCI/DPC: Add Error Disconnect Recover (EDR) support

2019-04-10 Thread sathyanarayanan kuppuswamy
Hi , On 4/10/19 11:41 AM, Bjorn Helgaas wrote: On Tue, Mar 19, 2019 at 01:47:29PM -0700, sathyanarayanan.kuppusw...@linux.intel.com wrote: From: Kuppuswamy Sathyanarayanan As per PCI firmware specification v3.2 ECN (https://members.pcisig.com/wg/PCI-SIG/document/12614), when firmware owns

Re: [PATCH v2 2/2] PCI/DPC: Add Error Disconnect Recover (EDR) support

2019-04-10 Thread Bjorn Helgaas
On Tue, Mar 19, 2019 at 01:47:29PM -0700, sathyanarayanan.kuppusw...@linux.intel.com wrote: > From: Kuppuswamy Sathyanarayanan > > As per PCI firmware specification v3.2 ECN > (https://members.pcisig.com/wg/PCI-SIG/document/12614), when firmware > owns Downstream Port Containment (DPC), its

[PATCH v2 2/2] PCI/DPC: Add Error Disconnect Recover (EDR) support

2019-03-19 Thread sathyanarayanan . kuppuswamy
From: Kuppuswamy Sathyanarayanan As per PCI firmware specification v3.2 ECN (https://members.pcisig.com/wg/PCI-SIG/document/12614), when firmware owns Downstream Port Containment (DPC), its expected to use the "Error Disconnect Recover" (EDR) notification to alert OSPM of a DPC event and if OS