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| author |   Steve Sistare <steven.sistare@oracle.com> | 2023-11-03 05:26:27 -0700 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2023-12-01 09:52:03 -0500 |
| commit | 480b3e73720f6b5d76bef2387b1f9d19ed67573b (patch) | |
| tree | cf8d9ab1958162159e509298346aa4301be010a4 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Linux 6.7-rc3 (diff) | |
| download | wireguard-linux-480b3e73720f6b5d76bef2387b1f9d19ed67573b.tar.xz wireguard-linux-480b3e73720f6b5d76bef2387b1f9d19ed67573b.zip | |
vdpa/mlx5: preserve CVQ vringh index
mlx5_vdpa does not preserve userland's view of vring base for the control
queue in the following sequence:
ioctl VHOST_SET_VRING_BASE
ioctl VHOST_VDPA_SET_STATUS VIRTIO_CONFIG_S_DRIVER_OK
mlx5_vdpa_set_status()
setup_cvq_vring()
vringh_init_iotlb()
vringh_init_kern()
vrh->last_avail_idx = 0;
ioctl VHOST_GET_VRING_BASE
To fix, restore the value of cvq->vring.last_avail_idx after calling
vringh_init_iotlb.
Fixes: 5262912ef3cf ("vdpa/mlx5: Add support for control VQ and MAC setting")
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <1699014387-194368-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions