On 7/13/07, Jörg Anslik <[EMAIL PROTECTED]> wrote:
Hi Sephe,
your fix for the bfe network interface does the trick...almost! :-)
I can now access /dev/bfe0 without causing the machine to freeze, but
unfortunately, there's no way to communicate over the network; the
system displays "bfe0: bfe_encap bus_dmamap_load failed: 36" error
messages when the interface is ifconfig'd UP or dhclient is started.
Anyway, I believe it's true the bfe driver has some serious problems
with machines that have >1GB of RAM -- your fix proves that.
And unless you have a fix for the bus_dmamap_load issue described
above at hand, I'll further investigate.
Please apply the attached patch too. Looks like bounce pages are not
allocated at all.
Best Regards,
sephe
--
Live Free or Die
--- busdma_machdep.c.orig 2007-07-13 12:07:26.073968370 +0800
+++ busdma_machdep.c 2007-07-13 12:06:18.324898557 +0800
@@ -45,7 +45,7 @@
#include <machine/md_var.h>
-#define MAX_BPAGES 128
+#define MAX_BPAGES 1024
struct bus_dma_tag {
bus_dma_tag_t parent;
@@ -289,9 +289,12 @@ bus_dmamap_create(bus_dma_tag_t dmat, in
panic("bus_dmamap_create: page reallocation "
"not implemented");
}
- pages = atop(dmat->maxsize);
+
+ pages = MAX(atop(dmat->maxsize), 1);
pages = MIN(maxpages - total_bpages, pages);
- error = alloc_bounce_pages(dmat, pages);
+ pages = MAX(pages, 1);
+ if (alloc_bounce_pages(dmat, pages) < pages)
+ error = ENOMEM;
if ((dmat->flags & BUS_DMA_MIN_ALLOC_COMP) == 0) {
if (error == 0)
