Re: [Qemu-devel] [PATCH v11 1/7] vhost-user: use VHOST_USER_XXX macro for switch statement

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Sep 24, 2015 at 01:05:11PM +0300, Marcel Apfelbaum wrote:
> On 09/23/2015 07:19 AM, Yuanhan Liu wrote:
> >So that we could let vhost_user_call to handle extented requests,
> >such as VHOST_USER_GET/SET_PROTOCOL_FEATURES, instead of invoking
> >vhost_user_read/write and constructing the msg again by ourself.
> >
> >Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
> >---
> >  hw/virtio/vhost-user.c | 38 ++++++++++++++++++++++----------------
> >  1 file changed, 22 insertions(+), 16 deletions(-)
> >
> >diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
> >index e7ab829..13677ac 100644
> >--- a/hw/virtio/vhost-user.c
> >+++ b/hw/virtio/vhost-user.c
> >@@ -193,27 +193,33 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
> >
> >      assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_USER);
> >
> >-    msg_request = vhost_user_request_translate(request);
> >+    /* only translate vhost ioctl requests */
> >+    if (request > VHOST_USER_MAX) {
> >+        msg_request = vhost_user_request_translate(request);
> >+    } else {
> >+        msg_request = request;
> >+    }
> >+
> >      msg.request = msg_request;
> >      msg.flags = VHOST_USER_VERSION;
> >      msg.size = 0;
> >
> >-    switch (request) {
> >-    case VHOST_GET_FEATURES:
> >+    switch (msg_request) {
> >+    case VHOST_USER_GET_FEATURES:
> >          need_reply = 1;
> >          break;
> >
> >-    case VHOST_SET_FEATURES:
> >-    case VHOST_SET_LOG_BASE:
> >+    case VHOST_USER_SET_FEATURES:
> >+    case VHOST_USER_SET_LOG_BASE:
> >          msg.u64 = *((__u64 *) arg);
> >          msg.size = sizeof(m.u64);
> >          break;
> >
> >-    case VHOST_SET_OWNER:
> >-    case VHOST_RESET_OWNER:
> >+    case VHOST_USER_SET_OWNER:
> >+    case VHOST_USER_RESET_OWNER:
> >          break;
> >
> >-    case VHOST_SET_MEM_TABLE:
> >+    case VHOST_USER_SET_MEM_TABLE:
> >          for (i = 0; i < dev->mem->nregions; ++i) {
> >              struct vhost_memory_region *reg = dev->mem->regions + i;
> >              ram_addr_t ram_addr;
> >@@ -246,30 +252,30 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
> >
> >          break;
> >
> >-    case VHOST_SET_LOG_FD:
> >+    case VHOST_USER_SET_LOG_FD:
> >          fds[fd_num++] = *((int *) arg);
> >          break;
> >
> >-    case VHOST_SET_VRING_NUM:
> >-    case VHOST_SET_VRING_BASE:
> >+    case VHOST_USER_SET_VRING_NUM:
> >+    case VHOST_USER_SET_VRING_BASE:
> >          memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
> >          msg.size = sizeof(m.state);
> >          break;
> >
> >-    case VHOST_GET_VRING_BASE:
> >+    case VHOST_USER_GET_VRING_BASE:
> >          memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
> >          msg.size = sizeof(m.state);
> >          need_reply = 1;
> >          break;
> >
> >-    case VHOST_SET_VRING_ADDR:
> >+    case VHOST_USER_SET_VRING_ADDR:
> >          memcpy(&msg.addr, arg, sizeof(struct vhost_vring_addr));
> >          msg.size = sizeof(m.addr);
> >          break;
> >
> >-    case VHOST_SET_VRING_KICK:
> >-    case VHOST_SET_VRING_CALL:
> >-    case VHOST_SET_VRING_ERR:
> >+    case VHOST_USER_SET_VRING_KICK:
> >+    case VHOST_USER_SET_VRING_CALL:
> >+    case VHOST_USER_SET_VRING_ERR:
> >          file = arg;
> >          msg.u64 = file->index & VHOST_USER_VRING_IDX_MASK;
> >          msg.size = sizeof(m.u64);
> >
> 
> 
> -- 
> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>

The -- is the signature separator.
Please don't put text after that - I almost missed it.