Re: [PATCH V2]nvme-pci: Fixes EEH failure on ppc

@@ -1189,6 +1183,12 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) struct nvme_command cmd; u32 csts = readl(dev->bar + NVME_REG_CSTS); + /* If PCI error recovery process is happening, we cannot reset or +* the recovery mechanism

Re: [PATCH V2]nvme-pci: Fixes EEH failure on ppc

@@ -1189,6 +1183,12 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) struct nvme_command cmd; u32 csts = readl(dev->bar + NVME_REG_CSTS); + /* If PCI error recovery process is happening, we cannot reset or +* the recovery mechanism

Re: [PATCH V2]nvme-pci: Fixes EEH failure on ppc

On Wed, Feb 07, 2018 at 02:09:38PM -0600, wenxi...@linux.vnet.ibm.com wrote: > @@ -1189,6 +1183,12 @@ static enum blk_eh_timer_return nvme_timeout(struct > request *req, bool reserved) > struct nvme_command cmd; > u32 csts = readl(dev->bar + NVME_REG_CSTS); > > + /* If PCI error

Re: [PATCH V2]nvme-pci: Fixes EEH failure on ppc

On Wed, Feb 07, 2018 at 02:09:38PM -0600, wenxi...@linux.vnet.ibm.com wrote: > @@ -1189,6 +1183,12 @@ static enum blk_eh_timer_return nvme_timeout(struct > request *req, bool reserved) > struct nvme_command cmd; > u32 csts = readl(dev->bar + NVME_REG_CSTS); > > + /* If PCI error

[PATCH V2]nvme-pci: Fixes EEH failure on ppc

From: Wen Xiong With b2a0eb1a0ac72869c910a79d935a0b049ec78ad9(nvme-pci: Remove watchdog timer), EEH recovery stops working on ppc. After removing whatdog timer routine, when trigger EEH on ppc, we hit EEH in nvme_timeout(). We would like to check if pci channel is

[PATCH V2]nvme-pci: Fixes EEH failure on ppc

From: Wen Xiong With b2a0eb1a0ac72869c910a79d935a0b049ec78ad9(nvme-pci: Remove watchdog timer), EEH recovery stops working on ppc. After removing whatdog timer routine, when trigger EEH on ppc, we hit EEH in nvme_timeout(). We would like to check if pci channel is offline or not at the