search for: 0xfeexxxx

......... > >> shouldn't. I don't know all the details about MSI, but doesn't the CPU >> or (L)APIC have to support it? In this case, it's a P200MMX on a 430FX >> chipset board. Both quite ancient... > > MSI in x86 always send to specific interrupt address(0xfeexxxx), most x86 CPU > should support MSI, but I am not sure, I don't know hardware much. To put things in perspective, P200MMX was released in early 1997. It looks like the PCI 2.2 spec, which defines MSI, was released in late 1998. The 430FX chipset only supports PCI 2.0. > >> >&gt...

...gt;> shouldn't. I don't know all the details about MSI, but doesn't the CPU >>> or (L)APIC have to support it? In this case, it's a P200MMX on a 430FX >>> chipset board. Both quite ancient... >> >> MSI in x86 always send to specific interrupt address(0xfeexxxx), most x86 CPU >> should support MSI, but I am not sure, I don't know hardware much. > > To put things in perspective, P200MMX was released in early 1997. It > looks like the PCI 2.2 spec, which defines MSI, was released in late > 1998. The 430FX chipset only supports PCI 2.0...

...#39;t. I don't know all the details about MSI, but doesn't the CPU >>>> or (L)APIC have to support it? In this case, it's a P200MMX on a 430FX >>>> chipset board. Both quite ancient... >>> >>> MSI in x86 always send to specific interrupt address(0xfeexxxx), most x86 CPU >>> should support MSI, but I am not sure, I don't know hardware much. >> >> To put things in perspective, P200MMX was released in early 1997. It >> looks like the PCI 2.2 spec, which defines MSI, was released in late >> 1998. The 430FX chipset on...

On Thu, Jul 3, 2014 at 10:35 PM, Yijing Wang <wangyijing at huawei.com> wrote: > Hi Brian, > From your 01:00.0 VGA compatible controller PCI config register, it supports 1 MSI vector, so I think this > card has no problem. But you didn't answer what's the pci_enable_msi() return during it enable MSI fail. > > You can check PCI bus whether support MSI like: > >

...+ PCI_MSIX_ENTRY_DATA); ...... > shouldn't. I don't know all the details about MSI, but doesn't the CPU > or (L)APIC have to support it? In this case, it's a P200MMX on a 430FX > chipset board. Both quite ancient... MSI in x86 always send to specific interrupt address(0xfeexxxx), most x86 CPU should support MSI, but I am not sure, I don't know hardware much. > > So given that the PCI device itself supports MSI, how do we tell that > it shouldn't actually get turned on? Generally, some message in dmesg like: [ 17.322311] ahci 0000:00:1f.2: irq 119 for...