On Tue, Jan 02, 2018 at 04:32:45PM -0500, Mikulas Patocka wrote:
> Hi
>
> The patch 0e4c2eeb758a91e68b9eaf7a4bee9bd5ed97ff2b ("alpha/PCI: Replace
> pci_fixup_irqs() call with host bridge IRQ mapping hooks") breaks
> networking on Alpha for me. I have an Alpha Avanti server with tulip
> network card.
>
> The patch 0e4c2eeb breaks it so that I get MCE when the network card
> driver is loaded. The patch 814eae59 fixes the MCE, the system boot
> completes, but the network card doesn't receive any interrupts (and soon
> it reports warning about timeout on tx queue). All kernels in the 4.14
> branch have this bug.
Can you check if this patch fixes the issue please ?
I suspect we ought to map IRQs early in this platform so that we are
able to detect how platform code should set them up.
Thanks,
Lorenzo
-- >8 --
diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c
index 37bd6d9b8eb9..407ab603e9b1 100644
--- a/arch/alpha/kernel/sys_sio.c
+++ b/arch/alpha/kernel/sys_sio.c
@@ -114,6 +114,8 @@ sio_collect_irq_levels(void)
(dev->class >> 8 != PCI_CLASS_BRIDGE_PCMCIA))
continue;
+ pci_assign_irq(dev);
+
if (dev->irq)
level_bits |= (1 << dev->irq);
}
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