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authorCourtney Cavin <courtney.cavin@sonymobile.com>2016-05-06 17:09:08 +0300
committerDavid S. Miller <davem@davemloft.net>2016-05-09 06:46:14 +0300
commitbdabad3e363d825ddf9679dd431cca0b2c30f881 (patch)
tree4389faff05dd23ddcc296277aa7c51a4ec65bc3f /net/qrtr/qrtr.h
parent43315f31adc2bf3b35e04dcf2372c3bb08014ed1 (diff)
downloadlinux-bdabad3e363d825ddf9679dd431cca0b2c30f881.tar.xz
net: Add Qualcomm IPC router
Add an implementation of Qualcomm's IPC router protocol, used to communicate with service providing remote processors. Signed-off-by: Courtney Cavin <courtney.cavin@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> [bjorn: Cope with 0 being a valid node id and implement RTM_NEWADDR] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/qrtr/qrtr.h')
-rw-r--r--net/qrtr/qrtr.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/net/qrtr/qrtr.h b/net/qrtr/qrtr.h
new file mode 100644
index 000000000000..2b848718f8fe
--- /dev/null
+++ b/net/qrtr/qrtr.h
@@ -0,0 +1,31 @@
+#ifndef __QRTR_H_
+#define __QRTR_H_
+
+#include <linux/types.h>
+
+struct sk_buff;
+
+/* endpoint node id auto assignment */
+#define QRTR_EP_NID_AUTO (-1)
+
+/**
+ * struct qrtr_endpoint - endpoint handle
+ * @xmit: Callback for outgoing packets
+ *
+ * The socket buffer passed to the xmit function becomes owned by the endpoint
+ * driver. As such, when the driver is done with the buffer, it should
+ * call kfree_skb() on failure, or consume_skb() on success.
+ */
+struct qrtr_endpoint {
+ int (*xmit)(struct qrtr_endpoint *ep, struct sk_buff *skb);
+ /* private: not for endpoint use */
+ struct qrtr_node *node;
+};
+
+int qrtr_endpoint_register(struct qrtr_endpoint *ep, unsigned int nid);
+
+void qrtr_endpoint_unregister(struct qrtr_endpoint *ep);
+
+int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len);
+
+#endif