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Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Si-Wei Liu , Jason Wang Subject: [PULL 10/68] vdpa: indicate transitional state for SVQ switching Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.687, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1710282613551100005 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Si-Wei Liu svq_switching indicates the transitional state whether or not SVQ mode switching is in progress, and towards which direction. Add the neccessary state around where the switching would take place. Message-Id: <1707910082-10243-12-git-send-email-si-wei.liu@oracle.com> Signed-off-by: Si-Wei Liu Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- net/vhost-vdpa.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 2254859dec..5f06c39f63 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -324,6 +324,8 @@ static void vhost_vdpa_net_log_global_enable(VhostVDPAS= tate *s, bool enable) data_queue_pairs =3D n->multiqueue ? n->max_queue_pairs : 1; cvq =3D virtio_vdev_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ) ? n->max_ncs - n->max_queue_pairs : 0; + v->shared->svq_switching =3D enable ? + SVQ_TSTATE_ENABLING : SVQ_TSTATE_DISABLING; /* * TODO: vhost_net_stop does suspend, get_base and reset. We can be sm= arter * in the future and resume the device if read-only operations between @@ -336,6 +338,7 @@ static void vhost_vdpa_net_log_global_enable(VhostVDPAS= tate *s, bool enable) if (unlikely(r < 0)) { error_report("unable to start vhost net: %s(%d)", g_strerror(-r), = -r); } + v->shared->svq_switching =3D SVQ_TSTATE_DONE; } =20 static int vdpa_net_migration_state_notifier(NotifierWithReturn *notifier, --=20 MST