Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-06-18 Thread Oliver O'Halloran
On Wed, Jun 17, 2020 at 4:29 PM Michael Ellerman wrote: > > "Oliver O'Halloran" writes: > > On Tue, Jun 16, 2020 at 9:55 PM Michael Ellerman > > wrote: > >> wenxi...@linux.vnet.ibm.com writes: > >> > From: Wen Xiong > >> > > >> > Several device drivers hit EEH(Extended Error handling) when tri

Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-06-16 Thread Michael Ellerman
"Oliver O'Halloran" writes: > On Tue, Jun 16, 2020 at 9:55 PM Michael Ellerman wrote: >> wenxi...@linux.vnet.ibm.com writes: >> > From: Wen Xiong >> > >> > Several device drivers hit EEH(Extended Error handling) when triggering >> > kdump on Pseries PowerVM. This patch implemented a reset of the

Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-06-16 Thread Oliver O'Halloran
On Tue, Jun 16, 2020 at 9:55 PM Michael Ellerman wrote: > > wenxi...@linux.vnet.ibm.com writes: > > From: Wen Xiong > > > > Several device drivers hit EEH(Extended Error handling) when triggering > > kdump on Pseries PowerVM. This patch implemented a reset of the PHBs > > in pci general code when

Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-06-16 Thread Michael Ellerman
wenxi...@linux.vnet.ibm.com writes: > From: Wen Xiong > > Several device drivers hit EEH(Extended Error handling) when triggering > kdump on Pseries PowerVM. This patch implemented a reset of the PHBs > in pci general code when triggering kdump. Actually it's in pseries specific PCI code, and the

Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-05-28 Thread Sam Bobroff
On Tue, May 26, 2020 at 08:21:59AM -0500, wenxi...@linux.vnet.ibm.com wrote: > From: Wen Xiong > > Several device drivers hit EEH(Extended Error handling) when triggering > kdump on Pseries PowerVM. This patch implemented a reset of the PHBs > in pci general code when triggering kdump. PHB reset

Re: powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-05-28 Thread Oliver O'Halloran
On Wed, May 27, 2020 at 12:48 AM wrote: > > From: Wen Xiong > > Several device drivers hit EEH(Extended Error handling) when triggering > kdump on Pseries PowerVM. This patch implemented a reset of the PHBs > in pci general code when triggering kdump. PHB reset stop all PCI > transactions from no

powerpc/pci: [PATCH 1/1 V3] PCIE PHB reset

2020-05-26 Thread wenxiong
From: Wen Xiong Several device drivers hit EEH(Extended Error handling) when triggering kdump on Pseries PowerVM. This patch implemented a reset of the PHBs in pci general code when triggering kdump. PHB reset stop all PCI transactions from normal kernel. We have tested the patch in several envir