Map MSI-X in addition to MSI and INTx on xhci(4). On Qemu apparently

the xHCI controller does not support MSIs, but does support MSI-X.  With
this diff running on Qemu/arm64 we switch over from shared INTx to device-
specific MSI-X interrupts.

Tested by and ok phessler@
ok dlg@

diff --git a/sys/dev/pci/xhci_pci.c b/sys/dev/pci/xhci_pci.c
index 88bdf66..ca1a0b3 100644 (file)
--- a/sys/dev/pci/xhci_pci.c
+++ b/sys/dev/pci/xhci_pci.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: xhci_pci.c,v 1.11 2022/03/11 18:00:52 mpi Exp $ */
+/*     $OpenBSD: xhci_pci.c,v 1.12 2023/04/18 21:22:00 patrick Exp $ */
 
 /*
  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
@@ -158,7 +158,8 @@ xhci_pci_attach(struct device *parent, struct device *self, void *aux)
        }
 
        /* Map and establish the interrupt. */
-       if (pci_intr_map_msi(pa, &ih) != 0 && pci_intr_map(pa, &ih) != 0) {
+       if (pci_intr_map_msix(pa, 0, &ih) != 0 &&
+           pci_intr_map_msi(pa, &ih) != 0 && pci_intr_map(pa, &ih) != 0) {
                printf(": couldn't map interrupt\n");
                goto unmap_ret;
        }