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virtio-blk: make queue size configurable

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Depending on the configuration, it can be beneficial to adjust the virtio-blk
queue size to something other than the current default of 128. Add a new
property to make the queue size configurable.

Signed-off-by: Mark Kanda <mark.kanda@oracle.com>
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ameya More <ameya.more@oracle.com>
Message-id: 52e6d742811f10dbd16e996e86cf375b9577c187.1513005190.git.mark.kanda@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Mark Kanda
2017-12-11 09:16:24 -06:00
committed by Stefan Hajnoczi
parent 6dd64919ea
commit 6040aedddb
2 changed files with 10 additions and 1 deletions
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1
include/hw/virtio/virtio-blk.h
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@@ -39,6 +39,7 @@ struct VirtIOBlkConf
uint32_t config_wce;
uint32_t request_merging;
uint16_t num_queues;
uint16_t queue_size;
};
struct VirtIOBlockDataPlane;