135 lines
4.8 KiB
Diff
135 lines
4.8 KiB
Diff
From 34cacff47da59075d930a5e96b16d003b70d383d Mon Sep 17 00:00:00 2001
|
|
From: Xiang Xiao <xiaoxiang@xiaomi.com>
|
|
Date: Mon, 7 Jan 2019 02:15:42 +0800
|
|
Subject: [PATCH 1/3] ns: acknowledge the received creation message
|
|
|
|
the two phase handsake make the client could initiate the transfer
|
|
immediately without the server side send any dummy message first.
|
|
|
|
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
|
|
---
|
|
lib/include/openamp/rpmsg.h | 1 +
|
|
lib/include/openamp/rpmsg_virtio.h | 1 +
|
|
lib/rpmsg/rpmsg.c | 5 ++++-
|
|
lib/rpmsg/rpmsg_internal.h | 4 ++--
|
|
lib/rpmsg/rpmsg_virtio.c | 14 +++++++++++---
|
|
5 files changed, 19 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/lib/include/openamp/rpmsg.h open-amp/lib/include/openamp/rpmsg.h
|
|
index 8b8ec2e..efdfb2b 100644
|
|
--- a/lib/include/openamp/rpmsg.h
|
|
+++ open-amp/lib/include/openamp/rpmsg.h
|
|
@@ -120,6 +120,7 @@ struct rpmsg_device {
|
|
rpmsg_ns_bind_cb ns_bind_cb;
|
|
struct rpmsg_device_ops ops;
|
|
bool support_ns;
|
|
+ bool support_ack;
|
|
};
|
|
|
|
/**
|
|
diff --git a/lib/include/openamp/rpmsg_virtio.h open-amp/lib/include/openamp/rpmsg_virtio.h
|
|
index 12cb47f..4d3093b 100644
|
|
--- a/lib/include/openamp/rpmsg_virtio.h
|
|
+++ open-amp/lib/include/openamp/rpmsg_virtio.h
|
|
@@ -28,6 +28,7 @@ extern "C" {
|
|
|
|
/* The feature bitmap for virtio rpmsg */
|
|
#define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */
|
|
+#define VIRTIO_RPMSG_F_ACK 1 /* RP supports name service acknowledge */
|
|
|
|
/**
|
|
* struct rpmsg_virtio_shm_pool - shared memory pool used for rpmsg buffers
|
|
diff --git a/lib/rpmsg/rpmsg.c open-amp/lib/rpmsg/rpmsg.c
|
|
index 46c3691..e52144b 100644
|
|
--- a/lib/rpmsg/rpmsg.c
|
|
+++ open-amp/lib/rpmsg/rpmsg.c
|
|
@@ -297,10 +297,13 @@ int rpmsg_create_ept(struct rpmsg_endpoint *ept, struct rpmsg_device *rdev,
|
|
rpmsg_register_endpoint(rdev, ept);
|
|
metal_mutex_release(&rdev->lock);
|
|
|
|
- /* Send NS announcement to remote processor */
|
|
+ /* Send NS announcement/acknowledge to remote processor */
|
|
if (ept->name[0] && rdev->support_ns &&
|
|
ept->dest_addr == RPMSG_ADDR_ANY)
|
|
status = rpmsg_send_ns_message(ept, RPMSG_NS_CREATE);
|
|
+ else if (ept->name[0] && rdev->support_ack &&
|
|
+ ept->dest_addr != RPMSG_ADDR_ANY)
|
|
+ status = rpmsg_send_ns_message(ept, RPMSG_NS_CREATE_ACK);
|
|
|
|
if (status)
|
|
rpmsg_unregister_endpoint(ept);
|
|
diff --git a/lib/rpmsg/rpmsg_internal.h open-amp/lib/rpmsg/rpmsg_internal.h
|
|
index d4536d1..e64aeff 100644
|
|
--- a/lib/rpmsg/rpmsg_internal.h
|
|
+++ open-amp/lib/rpmsg/rpmsg_internal.h
|
|
@@ -39,12 +39,12 @@ extern "C" {
|
|
*
|
|
* @RPMSG_NS_CREATE: a new remote service was just created
|
|
* @RPMSG_NS_DESTROY: a known remote service was just destroyed
|
|
- * @RPMSG_NS_CREATE_WITH_ACK: a new remote service was just created waiting
|
|
- * acknowledgment.
|
|
+ * @RPMSG_NS_CREATE_ACK: acknowledge the previous creation message
|
|
*/
|
|
enum rpmsg_ns_flags {
|
|
RPMSG_NS_CREATE = 0,
|
|
RPMSG_NS_DESTROY = 1,
|
|
+ RPMSG_NS_CREATE_ACK = 2,
|
|
};
|
|
|
|
/**
|
|
diff --git a/lib/rpmsg/rpmsg_virtio.c open-amp/lib/rpmsg/rpmsg_virtio.c
|
|
index 86a23ad..640240a 100644
|
|
--- a/lib/rpmsg/rpmsg_virtio.c
|
|
+++ open-amp/lib/rpmsg/rpmsg_virtio.c
|
|
@@ -554,13 +554,13 @@ static int rpmsg_virtio_ns_callback(struct rpmsg_endpoint *ept, void *data,
|
|
metal_mutex_acquire(&rdev->lock);
|
|
_ept = rpmsg_get_endpoint(rdev, name, RPMSG_ADDR_ANY, dest);
|
|
|
|
- if (ns_msg->flags & RPMSG_NS_DESTROY) {
|
|
+ if (ns_msg->flags == RPMSG_NS_DESTROY) {
|
|
if (_ept)
|
|
_ept->dest_addr = RPMSG_ADDR_ANY;
|
|
metal_mutex_release(&rdev->lock);
|
|
if (_ept && _ept->ns_unbind_cb)
|
|
_ept->ns_unbind_cb(_ept);
|
|
- } else {
|
|
+ } else if (ns_msg->flags == RPMSG_NS_CREATE) {
|
|
if (!_ept) {
|
|
/*
|
|
* send callback to application, that can
|
|
@@ -574,7 +574,14 @@ static int rpmsg_virtio_ns_callback(struct rpmsg_endpoint *ept, void *data,
|
|
} else {
|
|
_ept->dest_addr = dest;
|
|
metal_mutex_release(&rdev->lock);
|
|
+ if (_ept->name[0] && rdev->support_ack)
|
|
+ rpmsg_send_ns_message(_ept, RPMSG_NS_CREATE_ACK);
|
|
}
|
|
+ } else { /* RPMSG_NS_CREATE_ACK */
|
|
+ /* save the received destination address */
|
|
+ if (_ept)
|
|
+ _ept->dest_addr = dest;
|
|
+ metal_mutex_release(&rdev->lock);
|
|
}
|
|
|
|
return RPMSG_SUCCESS;
|
|
@@ -627,6 +634,7 @@ int rpmsg_init_vdev(struct rpmsg_virtio_device *rvdev,
|
|
#endif /*!VIRTIO_MASTER_ONLY*/
|
|
vdev->features = rpmsg_virtio_get_features(rvdev);
|
|
rdev->support_ns = !!(vdev->features & (1 << VIRTIO_RPMSG_F_NS));
|
|
+ rdev->support_ack = !!(vdev->features & (1 << VIRTIO_RPMSG_F_ACK));
|
|
|
|
#ifndef VIRTIO_SLAVE_ONLY
|
|
if (role == RPMSG_MASTER) {
|
|
@@ -722,7 +730,7 @@ int rpmsg_init_vdev(struct rpmsg_virtio_device *rvdev,
|
|
* Create name service announcement endpoint if device supports name
|
|
* service announcement feature.
|
|
*/
|
|
- if (rdev->support_ns) {
|
|
+ if (rdev->support_ns || rdev->support_ack) {
|
|
rpmsg_initialize_ept(&rdev->ns_ept, "NS",
|
|
RPMSG_NS_EPT_ADDR, RPMSG_NS_EPT_ADDR,
|
|
rpmsg_virtio_ns_callback, NULL);
|
|
--
|
|
2.17.1
|
|
|