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authorJing Liu <liujbjl@linux.vnet.ibm.com>2016-09-19 09:10:43 +0200
committerCornelia Huck <cornelia.huck@de.ibm.com>2017-05-04 10:34:37 +0200
commit6c15e9bfb687f40cc92759536ef2a918fb04349b (patch)
treed64cdf7abcede90f1a5709122e0886400a9c85ed /hw/usb/dev-hub.c
parentae92cbd542086a508343dd88fd3b980f3be1b3af (diff)
downloadfocaccia-qemu-6c15e9bfb687f40cc92759536ef2a918fb04349b.tar.gz
focaccia-qemu-6c15e9bfb687f40cc92759536ef2a918fb04349b.zip
s390x/css: Add an algorithm to find a free chpid
This introduces a function named css_find_free_chpid() to find a
free channel path. Because virtio-ccw device used zero as its
channel path number, it would be sensible to skip the reserved one
and search upwards.

Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com>
Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/usb/dev-hub.c')
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