Commits
Bob Liu committed 28d949bcc28
xen/blkfront: negotiate number of queues/rings to be used with backend The max number of hardware queues for xen/blkfront is set by parameter 'max_queues'(default 4), while it is also capped by the max value that the xen/blkback exposes through XenStore key 'multi-queue-max-queues'. The negotiated number is the smaller one and would be written back to xenstore as "multi-queue-num-queues", blkback needs to read this negotiated number. Signed-off-by: Bob Liu <bob.liu@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>