Re: No ATA disks on 9.1

[John Baldwin]

On Thursday, May 02, 2013 4:18:45 pm Alex Keda wrote:
> see begin in:
> http://lists.freebsd.org/pipermail/freebsd-current/2012-November/038000.html

Hmm, what I see is that hdac0 is affected by this, but it's a bit odd.  Can 
you try the patch below, but can you also get the output of 'devinfo -u' and 
'devinfo -rv' from the 9.0 kernel?

Index: /home/jhb/work/freebsd/svn/head/sys/dev/pci/pci.c
===================================================================
--- /home/jhb/work/freebsd/svn/head/sys/dev/pci/pci.c   (revision 250212)
+++ /home/jhb/work/freebsd/svn/head/sys/dev/pci/pci.c   (working copy)
@@ -2816,13 +2816,37 @@
         */
        res = resource_list_reserve(rl, bus, dev, type, &reg, start, end, count,
            prefetch ? RF_PREFETCHABLE : 0);
+#if 0
+       if (res == NULL && (start != 0 || end != ~0ul)) {
+               /*
+                * If the allocation fails, try to allocate a resource for
+                * this BAR using any available range.  The firmware felt
+                * it was important enough to assign a resource, so don't
+                * disable decoding if we can help it.
+                */
+               resource_list_delete(rl, type, reg);
+               start = 0;
+               end = ~0ul;
+               resource_list_add(rl, type, reg, 0, ~0ul, count);
+               resource_list_add(rl, type, reg, start, end, count);
+               res = resource_list_reserve(rl, bus, dev, type, &reg, 0, ~0ul,
+                   count, prefetch ? RF_PREFETCHABLE : 0);
+       }
+#endif
        if (res == NULL) {
                /*
                 * If the allocation fails, delete the resource list entry
-                * to force pci_alloc_resource() to allocate resources
-                * from the parent.
+                * and disable decoding for this device.
+                *
+                * If the driver requests this resource in the future,
+                * pci_reserve_map() will try to allocate fresh resources.
                 */
                resource_list_delete(rl, type, reg);
+               pci_disable_io(dev, type);
+               device_printf(bus,
+                   "pci%d:%d:%d:%d bar %#x failed to allocate\n",
+                   pci_get_domain(dev), pci_get_bus(dev), pci_get_slot(dev),
+                   pci_get_function(dev), reg);
        } else {
                start = rman_get_start(res);
                pci_write_bar(dev, pm, start);


-- 
John Baldwin
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