[v2,2/5] vhost: make message handling functions prepare the reply
diff mbox series

Message ID 153202761415.21481.4698894052167645234.stgit@T460
State Superseded, archived
Delegated to: Maxime Coquelin
Headers show
Series
  • vhost_user.c code cleanup
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Checks

Context Check Description
ci/Intel-compilation success Compilation OK

Commit Message

Nikolay Nikolaev July 19, 2018, 7:13 p.m. UTC
As VhostUserMsg structure is resued to generate the reply, move the
relevant fields update into the respective message handling functions.

Signed-off-by: Nikolay Nikolaev <nicknickolaev@gmail.com>
---
 lib/librte_vhost/vhost_user.c |   26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

Comments

Maxime Coquelin Sept. 10, 2018, 3:08 p.m. UTC | #1
On 07/19/2018 09:13 PM, Nikolay Nikolaev wrote:
> As VhostUserMsg structure is resued to generate the reply, move the

s/resued/reused/

> relevant fields update into the respective message handling functions.
> 
> Signed-off-by: Nikolay Nikolaev <nicknickolaev@gmail.com>
> ---
>   lib/librte_vhost/vhost_user.c |   26 ++++++++++++++++----------
>   1 file changed, 16 insertions(+), 10 deletions(-)
> 

Agree this is cleaner:
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

For the typo, don't resend the series just for this if this is the only
thing to fix. I suspect a rebase may be required anyway as it may
conflict with a patch from Ilya.

Thanks,
Maxime

Patch
diff mbox series

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index d51616695..e97b2d563 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -146,11 +146,15 @@  vhost_user_reset_owner(struct virtio_net *dev)
  * The features that we support are requested.
  */
 static uint64_t
-vhost_user_get_features(struct virtio_net *dev)
+vhost_user_get_features(struct virtio_net *dev, VhostUserMsg *msg)
 {
 	uint64_t features = 0;
 
 	rte_vhost_driver_get_features(dev->ifname, &features);
+
+	msg->payload.u64 = features;
+	msg->size = sizeof(msg->payload.u64);
+
 	return features;
 }
 
@@ -158,11 +162,15 @@  vhost_user_get_features(struct virtio_net *dev)
  * The queue number that we support are requested.
  */
 static uint32_t
-vhost_user_get_queue_num(struct virtio_net *dev)
+vhost_user_get_queue_num(struct virtio_net *dev, VhostUserMsg *msg)
 {
 	uint32_t queue_num = 0;
 
 	rte_vhost_driver_get_queue_num(dev->ifname, &queue_num);
+
+	msg->payload.u64 = (uint64_t)queue_num;
+	msg->size = sizeof(msg->payload.u64);
+
 	return queue_num;
 }
 
@@ -1109,6 +1117,8 @@  vhost_user_get_vring_base(struct virtio_net *dev,
 	rte_free(vq->batch_copy_elems);
 	vq->batch_copy_elems = NULL;
 
+	msg->size = sizeof(msg->payload.state);
+
 	return 0;
 }
 
@@ -1231,6 +1241,8 @@  vhost_user_set_log_base(struct virtio_net *dev, VhostUserMsg *msg)
 	dev->log_base = dev->log_addr + off;
 	dev->log_size = size;
 
+	msg->size = sizeof(msg->payload.u64);
+
 	return 0;
 }
 
@@ -1644,8 +1656,7 @@  vhost_user_msg_handler(int vid, int fd)
 
 	switch (msg.request.master) {
 	case VHOST_USER_GET_FEATURES:
-		msg.payload.u64 = vhost_user_get_features(dev);
-		msg.size = sizeof(msg.payload.u64);
+		vhost_user_get_features(dev, &msg);
 		send_vhost_reply(fd, &msg);
 		break;
 	case VHOST_USER_SET_FEATURES:
@@ -1675,9 +1686,6 @@  vhost_user_msg_handler(int vid, int fd)
 
 	case VHOST_USER_SET_LOG_BASE:
 		vhost_user_set_log_base(dev, &msg);
-
-		/* it needs a reply */
-		msg.size = sizeof(msg.payload.u64);
 		send_vhost_reply(fd, &msg);
 		break;
 	case VHOST_USER_SET_LOG_FD:
@@ -1697,7 +1705,6 @@  vhost_user_msg_handler(int vid, int fd)
 
 	case VHOST_USER_GET_VRING_BASE:
 		vhost_user_get_vring_base(dev, &msg);
-		msg.size = sizeof(msg.payload.state);
 		send_vhost_reply(fd, &msg);
 		break;
 
@@ -1715,8 +1722,7 @@  vhost_user_msg_handler(int vid, int fd)
 		break;
 
 	case VHOST_USER_GET_QUEUE_NUM:
-		msg.payload.u64 = (uint64_t)vhost_user_get_queue_num(dev);
-		msg.size = sizeof(msg.payload.u64);
+		vhost_user_get_queue_num(dev, &msg);
 		send_vhost_reply(fd, &msg);
 		break;