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author | Paolo Bonzini <pbonzini@redhat.com> | 2015-08-22 00:53:55 +0200 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2015-09-08 12:29:14 +0200 |
commit | 53eab6fd2777dc7cb338519827e23f8bf892903e (patch) | |
tree | 29fc9d97ab032f82cd49bad8737cd4c6d0ad223c /drivers/virtio/virtio_mmio.c | |
parent | Linux 4.2 (diff) | |
download | linux-53eab6fd2777dc7cb338519827e23f8bf892903e.tar.xz linux-53eab6fd2777dc7cb338519827e23f8bf892903e.zip |
virtio-blk: use VIRTIO_BLK_F_WCE and VIRTIO_BLK_F_CONFIG_WCE in virtio1
VIRTIO_BLK_F_CONFIG_WCE is important in order to achieve good performance
(up to 2x, though more realistically +30-40%) in latency-bound workloads.
However, it was removed by mistake together with VIRTIO_BLK_F_FLUSH.
It will be restored in the next revision of the virtio 1.0 standard, so
do the same in Linux.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio/virtio_mmio.c')
0 files changed, 0 insertions, 0 deletions