From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
To: qemu-devel@nongnu.org, vgoyal@redhat.com, stefanha@redhat.com,
virtio-fs@redhat.com, marcandre.lureau@redhat.com,
mst@redhat.com
Subject: [PATCH 02/24] DAX: libvhost-user: Route slave message payload
Date: Tue, 9 Feb 2021 19:02:02 +0000 [thread overview]
Message-ID: <20210209190224.62827-3-dgilbert@redhat.com> (raw)
In-Reply-To: <20210209190224.62827-1-dgilbert@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Route the uint64 payload from message replies on the slave back up
through vu_process_message_reply and to the callers.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
subprojects/libvhost-user/libvhost-user.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c
index fab7ca17ee..937f64480d 100644
--- a/subprojects/libvhost-user/libvhost-user.c
+++ b/subprojects/libvhost-user/libvhost-user.c
@@ -403,9 +403,11 @@ vu_send_reply(VuDev *dev, int conn_fd, VhostUserMsg *vmsg)
* Processes a reply on the slave channel.
* Entered with slave_mutex held and releases it before exit.
* Returns true on success.
+ * *payload is written on success
*/
static bool
-vu_process_message_reply(VuDev *dev, const VhostUserMsg *vmsg)
+vu_process_message_reply(VuDev *dev, const VhostUserMsg *vmsg,
+ uint64_t *payload)
{
VhostUserMsg msg_reply;
bool result = false;
@@ -425,7 +427,8 @@ vu_process_message_reply(VuDev *dev, const VhostUserMsg *vmsg)
goto out;
}
- result = msg_reply.payload.u64 == 0;
+ *payload = msg_reply.payload.u64;
+ result = true;
out:
pthread_mutex_unlock(&dev->slave_mutex);
@@ -1312,6 +1315,8 @@ bool vu_set_queue_host_notifier(VuDev *dev, VuVirtq *vq, int fd,
{
int qidx = vq - dev->vq;
int fd_num = 0;
+ bool res;
+ uint64_t payload = 0;
VhostUserMsg vmsg = {
.request = VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG,
.flags = VHOST_USER_VERSION | VHOST_USER_NEED_REPLY_MASK,
@@ -1342,7 +1347,10 @@ bool vu_set_queue_host_notifier(VuDev *dev, VuVirtq *vq, int fd,
}
/* Also unlocks the slave_mutex */
- return vu_process_message_reply(dev, &vmsg);
+ res = vu_process_message_reply(dev, &vmsg, &payload);
+ res = res && (payload == 0);
+
+ return res;
}
static bool
--
2.29.2
next prev parent reply other threads:[~2021-02-09 19:14 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 19:02 [PATCH 00/24] virtiofs dax patches Dr. David Alan Gilbert (git)
2021-02-09 19:02 ` [PATCH 01/24] DAX: vhost-user: Rework slave return values Dr. David Alan Gilbert (git)
2021-02-11 9:59 ` Stefan Hajnoczi
2021-02-11 15:27 ` Vivek Goyal
2021-02-18 12:18 ` Dr. David Alan Gilbert
2021-02-09 19:02 ` Dr. David Alan Gilbert (git) [this message]
2021-02-11 10:05 ` [PATCH 02/24] DAX: libvhost-user: Route slave message payload Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 03/24] DAX: libvhost-user: Allow popping a queue element with bad pointers Dr. David Alan Gilbert (git)
2021-02-11 10:12 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 04/24] DAX subprojects/libvhost-user: Add virtio-fs slave types Dr. David Alan Gilbert (git)
2021-02-11 10:16 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 05/24] DAX: virtio: Add shared memory capability Dr. David Alan Gilbert (git)
2021-02-11 10:17 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 06/24] DAX: virtio-fs: Add cache BAR Dr. David Alan Gilbert (git)
2021-02-11 10:25 ` Stefan Hajnoczi
2021-02-18 17:33 ` Dr. David Alan Gilbert
2021-02-09 19:02 ` [PATCH 07/24] DAX: virtio-fs: Add vhost-user slave commands for mapping Dr. David Alan Gilbert (git)
2021-02-11 10:32 ` Stefan Hajnoczi
2021-03-08 17:04 ` Dr. David Alan Gilbert
2021-02-15 10:35 ` [Virtio-fs] " Chirantan Ekbote
2021-02-15 13:25 ` Dr. David Alan Gilbert
2021-02-15 14:24 ` Vivek Goyal
2021-03-11 12:15 ` Dr. David Alan Gilbert
2021-03-11 13:50 ` Vivek Goyal
2021-03-11 18:52 ` Dr. David Alan Gilbert
2021-02-09 19:02 ` [PATCH 08/24] DAX: virtio-fs: Fill in " Dr. David Alan Gilbert (git)
2021-02-11 10:57 ` Stefan Hajnoczi
2021-02-18 10:59 ` Dr. David Alan Gilbert
2021-02-09 19:02 ` [PATCH 09/24] DAX: virtiofsd Add cache accessor functions Dr. David Alan Gilbert (git)
2021-02-11 12:31 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 10/24] DAX: virtiofsd: Add setup/remove mappings fuse commands Dr. David Alan Gilbert (git)
2021-02-11 12:37 ` Stefan Hajnoczi
2021-02-11 16:39 ` Dr. David Alan Gilbert
2021-02-11 18:30 ` Vivek Goyal
2021-02-11 19:50 ` Dr. David Alan Gilbert
2021-02-11 20:15 ` Vivek Goyal
2021-02-09 19:02 ` [PATCH 11/24] DAX: virtiofsd: Add setup/remove mapping handlers to passthrough_ll Dr. David Alan Gilbert (git)
2021-02-11 12:37 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 12/24] DAX: virtiofsd: Wire up passthrough_ll's lo_setupmapping Dr. David Alan Gilbert (git)
2021-02-11 12:41 ` Stefan Hajnoczi
2021-02-11 16:05 ` Vivek Goyal
2021-02-09 19:02 ` [PATCH 13/24] DAX: virtiofsd: Make lo_removemapping() work Dr. David Alan Gilbert (git)
2021-02-11 12:41 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 14/24] DAX: virtiofsd: route se down to destroy method Dr. David Alan Gilbert (git)
2021-02-11 12:42 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 15/24] DAX: virtiofsd: Perform an unmap on destroy Dr. David Alan Gilbert (git)
2021-02-11 12:42 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 16/24] DAX/unmap: virtiofsd: Add VHOST_USER_SLAVE_FS_IO Dr. David Alan Gilbert (git)
2021-02-11 14:17 ` Stefan Hajnoczi
2021-03-16 19:59 ` Dr. David Alan Gilbert
2021-03-31 10:12 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 17/24] DAX/unmap virtiofsd: Add wrappers for VHOST_USER_SLAVE_FS_IO Dr. David Alan Gilbert (git)
2021-02-11 14:18 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 18/24] DAX/unmap virtiofsd: Parse unmappable elements Dr. David Alan Gilbert (git)
2021-02-11 14:29 ` Stefan Hajnoczi
2021-02-25 10:19 ` Dr. David Alan Gilbert
2021-03-31 10:14 ` Stefan Hajnoczi
2021-03-17 10:33 ` Dr. David Alan Gilbert
2021-02-09 19:02 ` [PATCH 19/24] DAX/unmap virtiofsd: Route unmappable reads Dr. David Alan Gilbert (git)
2021-02-09 19:02 ` [PATCH 20/24] DAX/unmap virtiofsd: route unmappable write to slave command Dr. David Alan Gilbert (git)
2021-02-09 19:02 ` [PATCH 21/24] DAX:virtiofsd: implement FUSE_INIT map_alignment field Dr. David Alan Gilbert (git)
2021-02-09 19:02 ` [PATCH 22/24] vhost-user-fs: Extend VhostUserFSSlaveMsg to pass additional info Dr. David Alan Gilbert (git)
2021-02-09 19:02 ` [PATCH 23/24] vhost-user-fs: Implement drop CAP_FSETID functionality Dr. David Alan Gilbert (git)
2021-02-11 14:35 ` Stefan Hajnoczi
2021-02-11 14:40 ` Vivek Goyal
2021-02-15 15:57 ` Stefan Hajnoczi
2021-02-16 15:57 ` Vivek Goyal
2021-02-22 16:53 ` Stefan Hajnoczi
2021-02-09 19:02 ` [PATCH 24/24] virtiofsd: Ask qemu to drop CAP_FSETID if client asked for it Dr. David Alan Gilbert (git)
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