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vhost: set the packed ring as default

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The packed ring can supply up to 10% performance promotion.
Let's set the packed ring format as default.

Change-Id: Ie722417d20f3355769eefce4fec9831c60976e6f
Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2821
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Jin Yu 2020-06-10 00:00:22 +08:00 committed by Jim Harris
parent 817c7b4f6c
commit 918177d6fd
1 changed files with 2 additions and 1 deletions
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3
lib/vhost/vhost_internal.h
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@ -74,7 +74,8 @@
(1ULL << VIRTIO_F_VERSION_1) | \
(1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) | \
(1ULL << VIRTIO_RING_F_EVENT_IDX) | \
(1ULL << VIRTIO_RING_F_INDIRECT_DESC))
(1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \
(1ULL << VIRTIO_F_RING_PACKED))
#define SPDK_VHOST_DISABLED_FEATURES ((1ULL << VIRTIO_RING_F_EVENT_IDX) | \
(1ULL << VIRTIO_F_NOTIFY_ON_EMPTY))