Re: Legacy features in PCI Express devices

2017-03-13 Thread Bjorn Helgaas
On Mon, Mar 13, 2017 at 05:10:57PM +0100, Mason wrote: > Hello, > > There are two revisions of our PCI Express controller. > > Rev 1 did not support the following features: > > 1) legacy PCI interrupt delivery (INTx signals) > 2) I/O address space > > Internally, someone stated that such mi

Re: Legacy features in PCI Express devices

2017-03-13 Thread Robin Murphy
On 13/03/17 17:39, Mason wrote: > On 13/03/2017 18:12, Robin Murphy wrote: > >> On 13/03/17 16:10, Mason wrote: >> >>> There are two revisions of our PCI Express controller. >>> >>> Rev 1 did not support the following features: >>> >>> 1) legacy PCI interrupt delivery (INTx signals) >>> 2) I/O

Re: Legacy features in PCI Express devices

2017-03-13 Thread Mason
On 13/03/2017 18:12, Robin Murphy wrote: > On 13/03/17 16:10, Mason wrote: > >> There are two revisions of our PCI Express controller. >> >> Rev 1 did not support the following features: >> >> 1) legacy PCI interrupt delivery (INTx signals) >> 2) I/O address space >> >> Internally, someone sta

Re: Legacy features in PCI Express devices

2017-03-13 Thread David Daney
On 03/13/2017 09:10 AM, Mason wrote: Hello, There are two revisions of our PCI Express controller. Rev 1 did not support the following features: 1) legacy PCI interrupt delivery (INTx signals) 2) I/O address space Internally, someone stated that such missing support would prevent some PCI

Re: Legacy features in PCI Express devices

2017-03-13 Thread Robin Murphy
On 13/03/17 16:10, Mason wrote: > Hello, > > There are two revisions of our PCI Express controller. > > Rev 1 did not support the following features: > > 1) legacy PCI interrupt delivery (INTx signals) > 2) I/O address space > > Internally, someone stated that such missing support would pre

Re: Legacy features in PCI Express devices

2017-03-13 Thread Greg
On Mon, 2017-03-13 at 17:10 +0100, Mason wrote: > Hello, > > There are two revisions of our PCI Express controller. > > Rev 1 did not support the following features: > > 1) legacy PCI interrupt delivery (INTx signals) I'm not sure about this... > 2) I/O address space But yes, definitely s

Legacy features in PCI Express devices

2017-03-13 Thread Mason
Hello, There are two revisions of our PCI Express controller. Rev 1 did not support the following features: 1) legacy PCI interrupt delivery (INTx signals) 2) I/O address space Internally, someone stated that such missing support would prevent some PCIe cards from working with our controlle