Module Name: src
Committed By: rin
Date: Wed Oct 4 07:41:55 UTC 2023
Modified Files:
src/sys/dev/pci/igc: if_igc.c
Log Message:
igc(4): XXX: Temporally disable 64-bit DMA for aarch64
Until PR port-arm/57643 is properly addressed.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/pci/igc/if_igc.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/igc/if_igc.c
diff -u src/sys/dev/pci/igc/if_igc.c:1.2 src/sys/dev/pci/igc/if_igc.c:1.3
--- src/sys/dev/pci/igc/if_igc.c:1.2 Wed Oct 4 07:35:27 2023
+++ src/sys/dev/pci/igc/if_igc.c Wed Oct 4 07:41:55 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: if_igc.c,v 1.2 2023/10/04 07:35:27 rin Exp $ */
+/* $NetBSD: if_igc.c,v 1.3 2023/10/04 07:41:55 rin Exp $ */
/* $OpenBSD: if_igc.c,v 1.13 2023/04/28 10:18:57 bluhm Exp $ */
/*-
* SPDX-License-Identifier: BSD-2-Clause
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_igc.c,v 1.2 2023/10/04 07:35:27 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_igc.c,v 1.3 2023/10/04 07:41:55 rin Exp $");
#ifdef _KERNEL_OPT
#include "opt_net_mpsafe.h"
@@ -363,8 +363,17 @@ igc_attach(device_t parent, device_t sel
sc->osdep.os_sc = sc;
sc->osdep.os_pa = *pa;
+#ifdef __aarch64__
+ /*
+ * XXX PR port-arm/57643
+ * 64-bit DMA does not work at least for LX2K with 32/64GB memory.
+ * smmu(4) support may be required.
+ */
+ sc->osdep.os_dmat = pa->pa_dmat;
+#else
sc->osdep.os_dmat = pci_dma64_available(pa) ?
pa->pa_dmat64 : pa->pa_dmat;
+#endif
/* Determine hardware and mac info */
igc_identify_hardware(sc);
