Re: RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-11 Thread Pali Rohár
On Thursday 11 March 2021 19:53:26 Vidya Sagar wrote: > On 3/3/2021 11:26 PM, Pali Rohár wrote: > > External email: Use caution opening links or attachments > > > > > > On Tuesday 02 March 2021 12:58:29 Alex Williamson wrote: > > > On Mon, 1 Mar 2021 14:28:17 -0600 > > > Bjorn Helgaas wrote: >

Re: RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-11 Thread Vidya Sagar
On 3/3/2021 11:26 PM, Pali Rohár wrote: External email: Use caution opening links or attachments On Tuesday 02 March 2021 12:58:29 Alex Williamson wrote: On Mon, 1 Mar 2021 14:28:17 -0600 Bjorn Helgaas wrote: [+cc Alex, reset expert] On Mon, Mar 01, 2021 at 06:12:21PM +0100, Pali Rohár

Re: RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-03 Thread Pali Rohár
On Tuesday 02 March 2021 12:58:29 Alex Williamson wrote: > On Mon, 1 Mar 2021 14:28:17 -0600 > Bjorn Helgaas wrote: > > > [+cc Alex, reset expert] > > > > On Mon, Mar 01, 2021 at 06:12:21PM +0100, Pali Rohár wrote: > > > Hello! > > > > > > PCIe card can be reset via in-band Hot Reset signal

Re: RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-02 Thread Alex Williamson
On Mon, 1 Mar 2021 14:28:17 -0600 Bjorn Helgaas wrote: > [+cc Alex, reset expert] > > On Mon, Mar 01, 2021 at 06:12:21PM +0100, Pali Rohár wrote: > > Hello! > > > > PCIe card can be reset via in-band Hot Reset signal which can be > > triggered by PCIe bridge via Secondary Bus Reset bit in PCI

Re: RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-01 Thread Bjorn Helgaas
[+cc Alex, reset expert] On Mon, Mar 01, 2021 at 06:12:21PM +0100, Pali Rohár wrote: > Hello! > > PCIe card can be reset via in-band Hot Reset signal which can be > triggered by PCIe bridge via Secondary Bus Reset bit in PCI config > space. > > Kernel already exports sysfs node "reset" for

RFC: sysfs node for Secondary PCI bus reset (PCIe Hot Reset)

2021-03-01 Thread Pali Rohár
Hello! PCIe card can be reset via in-band Hot Reset signal which can be triggered by PCIe bridge via Secondary Bus Reset bit in PCI config space. Kernel already exports sysfs node "reset" for triggering Functional Reset of particular function of PCI device. But in some cases Functional Reset is