[SLOF] [PATCH] board-qemu/slof/vio-vscsi: Scan up to 64 SCSI IDs

[Thomas Huth]

QEMU supports up the 64 SCSI IDs on the vscsi "bus", see the string
"max_target = 63" in the source file hw/scsi/spapr_vscsi.c of QEMU.
However, SLOF currently only checks the first 9 IDs on the vscsi adaptor,
so when you try to boot from a CD-ROM like this, the boot fails:

 qemu-system-ppc64 ... -device spapr-vscsi,id=scsi0,reg=0x2000 \
    -drive file=/path/to/cdrom.iso,format=raw,if=none,id=dr1,readonly=on \
    -device scsi-cd,bus=scsi0.0,channel=0,scsi-id=63,lun=1,drive=dr1,id=scd1

Thus let's change the amount of IDs that we scan in SLOF to 64, too, to
match the ID range that QEMU provides.

Signed-off-by: Thomas Huth <thuth at redhat.com>
---
 board-qemu/slof/vio-vscsi.fs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/board-qemu/slof/vio-vscsi.fs b/board-qemu/slof/vio-vscsi.fs
index f2d4c6f..be11b69 100644
--- a/board-qemu/slof/vio-vscsi.fs
+++ b/board-qemu/slof/vio-vscsi.fs
@@ -507,9 +507,9 @@ TRUE VALUE first-time-init?
     10000 \ Larger value seem to have problems with some CDROMs
 ;
 
-8 CONSTANT #dev
+\ Report the amount of supported SCSI IDs - QEMU uses "max_target = 63"
 : dev-max-target ( -- #max-target )
-    #dev
+    40
 ;
 
 " scsi-probe-helpers.fs" included
-- 
1.8.3.1