<div dir="ltr"><p class="MsoNormal">Hi,</p><p class="MsoNormal"><br></p><p class="MsoNormal">I am facing an issue routing the interrupts from the
Ethernet devices which are on GPP PCIe 1, GPP PCIe 2, and GPP PCIe 3 on a custom hardware that is running AMD G-series - Steppe eagle (Mullins, Family 16h Model 30h-3Fh) . </p><p class="MsoNormal"><br></p><p class="MsoNormal">I am attempting to use the PCI IRQ from the Ethernet devices, but this is
not working. I am trying to route the PCI IRQ to legacy PIC using C00/C01 Interrupt Router. I have
verified the interrupt was generated by the Ethernet end
device but we don’t see it getting received by the PIC. <span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">I am using FCH in PIC mode, and have local APIC and IOAPIC
disabled. In this mode I am able to receive interrupts through PIC from Serial IRQ
and from 8254 timer on IRQ0. There are some limitations with the OS so i cannot use IOAPIC, only legacy PIC can be used.<span></span></p><p class="MsoNormal"><br></p><p class="MsoNormal">I do not have much experience with AMD platforms so i am sure what wrong i am doing. Any input will be very helpful. </p><p class="MsoNormal"><br></p><p class="MsoNormal">Thanks</p><p class="MsoNormal">Abhishek.</p><p class="MsoNormal"><br></p><p class="MsoNormal"><br></p></div>