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hw/ppc/spapr: Encode the SCSI channel (bus) in the SRP LUNs 

In hw/scsi/spapr_vio.c we declare that the controller supports multiple
buses by specifying "max_channel = 7" there. So in the code that fixes
up the device tree nodes, we must encode the channel number (a.k.a. bus
number in the "Logical unit addressing format" table of SAM5) into the
64-bit LUN, too.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1663160
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Thomas Huth 2019-01-09 15:03:23 +01:00 committed by David Gibson
parent 4882206430
commit 1ac24c91bb
1 changed files with 4 additions and 3 deletions
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7
hw/ppc/spapr.c
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@ -2959,10 +2959,11 @@ static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus,
if (spapr) {
/*
* Replace "channel@0/disk@0,0" with "disk@8000000000000000":
* We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun
* in the top 16 bits of the 64-bit LUN
* In the top 16 bits of the 64-bit LUN, we use SRP luns of the form
* 0x8000 | (target << 8) | (bus << 5) | lun
* (see the "Logical unit addressing format" table in SAM5)
*/
unsigned id = 0x8000 | (d->id << 8) | d->lun;
unsigned id = 0x8000 | (d->id << 8) | (d->channel << 5) | d->lun;
return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev),
(uint64_t)id << 48);
} else if (virtio) {