Map MSI-X in addition to MSI and INTx on rge(4).

Brad noticed on Orange Pi 5 Plus apparently the RTL8125 Ethernet controller
doesn't support MSIs, but does support MSI-X.  With this diff running on
Orange Pi 5+ we switch over from shared INTx to device-specific MSI-X
interrupts.

Tested by Brad.
ok kettenis@

diff --git a/sys/dev/pci/if_rge.c b/sys/dev/pci/if_rge.c
index 07513ad..6a487c5 100644 (file)
--- a/sys/dev/pci/if_rge.c
+++ b/sys/dev/pci/if_rge.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if_rge.c,v 1.24 2024/04/13 23:44:11 jsg Exp $ */
+/*     $OpenBSD: if_rge.c,v 1.25 2024/05/20 01:51:32 kevlo Exp $       */
 
 /*
  * Copyright (c) 2019, 2020, 2023 Kevin Lo <kevlo@openbsd.org>
@@ -209,7 +209,8 @@ rge_attach(struct device *parent, struct device *self, void *aux)
        /*
         * Allocate interrupt.
         */
-       if (pci_intr_map_msi(pa, &ih) == 0)
+       if (pci_intr_map_msix(pa, 0, &ih) == 0 ||
+           pci_intr_map_msi(pa, &ih) == 0)
                sc->rge_flags |= RGE_FLAG_MSI;
        else if (pci_intr_map(pa, &ih) != 0) {
                printf(": couldn't map interrupt\n");