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Commit 162cff4d authored by Chris Lew's avatar Chris Lew
Browse files

net: qrtr: Add support for multiple nodes on a single ept 



An ept can be associated with multiple node ids in network. The node
tree should keep track of how to send to a specific node id where as
the node list should keep track of all the adjacent nodes in the
network. Use the node list to broadcast control messages to adjacent
nodes.

Change-Id: If0f4828da149b6e590525518a8410f497f5e3894
Signed-off-by: default avatarChris Lew <clew@codeaurora.org>
parent 33685bb2

net/qrtr/qrtr.c

+12 −5
Original line number Diff line number Diff line
@@ -208,8 +208,12 @@ static void __qrtr_node_release(struct kref *kref) 
	void __rcu **slot;



	spin_lock_irqsave(&qrtr_nodes_lock, flags);

	if (node->nid != QRTR_EP_NID_AUTO)

		radix_tree_delete(&qrtr_nodes, node->nid);

	if (node->nid != QRTR_EP_NID_AUTO) {

		radix_tree_for_each_slot(slot, &qrtr_nodes, &iter, 0) {

			if (node == *slot)

				radix_tree_delete(&qrtr_nodes, iter.index);

		}

	}

	spin_unlock_irqrestore(&qrtr_nodes_lock, flags);



	list_del(&node->item);
@@ -446,11 +450,14 @@ static void qrtr_node_assign(struct qrtr_node *node, unsigned int nid) 
{

	unsigned long flags;



	if (node->nid != QRTR_EP_NID_AUTO || nid == QRTR_EP_NID_AUTO)

	if (nid == node->nid || nid == QRTR_EP_NID_AUTO)

		return;



	spin_lock_irqsave(&qrtr_nodes_lock, flags);

	if (!radix_tree_lookup(&qrtr_nodes, nid))

		radix_tree_insert(&qrtr_nodes, nid, node);



	if (node->nid == QRTR_EP_NID_AUTO)

		node->nid = nid;

	spin_unlock_irqrestore(&qrtr_nodes_lock, flags);

}