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Tsirkin" , Stefano Garzarella Subject: [PATCH] vhost-user: add NEED_REPLY flag Date: Sun, 4 Aug 2024 23:48:59 +0800 Message-Id: <20240804154859.28342-1-luzhixing12345@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2001:4860:4864:20::41; envelope-from=luzhixing12345@gmail.com; helo=mail-oa1-x41.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Front-end message requests which need reply should set NEED_REPLY_MASK in flag, and response from slave need clear NEED_REPLY_MASK flag. Signed-off-by: luzhixing12345 --- hw/virtio/vhost-user.c | 2 +- subprojects/libvhost-user/libvhost-user.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 00561daa06..edf2271e0a 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -1082,7 +1082,7 @@ static int vhost_user_get_u64(struct vhost_dev *dev, int request, uint64_t *u64) int ret; VhostUserMsg msg = { .hdr.request = request, - .hdr.flags = VHOST_USER_VERSION, + .hdr.flags = VHOST_USER_VERSION | VHOST_USER_NEED_REPLY_MASK, }; if (vhost_user_per_device_request(request) && dev->vq_index != 0) { diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c index 9c630c2170..40f665bd7f 100644 --- a/subprojects/libvhost-user/libvhost-user.c +++ b/subprojects/libvhost-user/libvhost-user.c @@ -667,6 +667,7 @@ vu_send_reply(VuDev *dev, int conn_fd, VhostUserMsg *vmsg) { /* Set the version in the flags when sending the reply */ vmsg->flags &= ~VHOST_USER_VERSION_MASK; + vmsg->flags &= ~VHOST_USER_NEED_REPLY_MASK; vmsg->flags |= VHOST_USER_VERSION; vmsg->flags |= VHOST_USER_REPLY_MASK;