X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flibrte_power%2Fguest_channel.h;h=e15db46fc78c5a8e3428b12d7237c5a642ceee65;hb=841dfdd06d37cb00a49a56a180c287efc021a842;hp=8ea19b592156e505d4670471a5c102c0aab15dee;hpb=369991d997e4abdee355e19ffbb41a4d246cafa2;p=dpdk.git

diff --git a/lib/librte_power/guest_channel.h b/lib/librte_power/guest_channel.h
index 8ea19b5921..e15db46fc7 100644
--- a/lib/librte_power/guest_channel.h
+++ b/lib/librte_power/guest_channel.h
@@ -10,6 +10,18 @@ extern "C" {
 
 #include <channel_commands.h>
 
+/**
+ * Check if any Virtio-Serial VM end-points exist in path.
+ *
+ * @param path
+ *  The path to the serial device on the filesystem
+ *
+ * @return
+ *  - 1 if at least one potential end-point found.
+ *  - 0 if no end-points found.
+ */
+int guest_channel_host_check_exists(const char *path);
+
 /**
  * Connect to the Virtio-Serial VM end-point located in path. It is
  * thread safe for unique lcore_ids. This function must be only called once from
@@ -17,6 +29,7 @@ extern "C" {
  *
  * @param path
  *  The path to the serial device on the filesystem
+ *
  * @param lcore_id
  *  lcore_id.
  *
@@ -24,7 +37,7 @@ extern "C" {
  *  - 0 on success.
  *  - Negative on error.
  */
-int guest_channel_host_connect(const char *path, unsigned lcore_id);
+int guest_channel_host_connect(const char *path, unsigned int lcore_id);
 
 /**
  * Disconnect from an already connected Virtio-Serial Endpoint.
@@ -34,7 +47,7 @@ int guest_channel_host_connect(const char *path, unsigned lcore_id);
  *  lcore_id.
  *
  */
-void guest_channel_host_disconnect(unsigned lcore_id);
+void guest_channel_host_disconnect(unsigned int lcore_id);
 
 /**
  * Send a message contained in pkt over the Virtio-Serial to the host endpoint.
@@ -50,7 +63,7 @@ void guest_channel_host_disconnect(unsigned lcore_id);
  *  - Negative on channel not connected.
  *  - errno on write to channel error.
  */
-int guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id);
+int guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id);
 
 /**
  * Send a message contained in pkt over the Virtio-Serial to the host endpoint.
@@ -68,6 +81,53 @@ int guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id);
 int rte_power_guest_channel_send_msg(struct channel_packet *pkt,
 			unsigned int lcore_id);
 
+/**
+ * Read a message contained in pkt over the Virtio-Serial
+ * from the host endpoint.
+ *
+ * @param pkt
+ *  Pointer to channel_packet or
+ *  channel_packet_freq_list struct.
+ *
+ * @param pkt_len
+ *  Size of expected data packet.
+ *
+ * @param lcore_id
+ *  lcore_id.
+ *
+ * @return
+ *  - 0 on success.
+ *  - Negative on error.
+ */
+int power_guest_channel_read_msg(void *pkt,
+		size_t pkt_len,
+		unsigned int lcore_id);
+
+/**
+ * Receive a message contained in pkt over the Virtio-Serial
+ * from the host endpoint.
+ *
+ * @param pkt
+ *  Pointer to channel_packet or
+ *  channel_packet_freq_list struct.
+ *
+ * @param pkt_len
+ *  Size of expected data packet.
+ *
+ * @param lcore_id
+ *  lcore_id.
+ *
+ * @return
+ *  - 0 on success.
+ *  - Negative on error.
+ */
+__rte_experimental
+int
+rte_power_guest_channel_receive_msg(void *pkt,
+		size_t pkt_len,
+		unsigned int lcore_id);
+
+
 #ifdef __cplusplus
 }
 #endif