Add a one-parameter function to take an existing rte_ring and wrap it as
an ethdev, returning the port id of the new ethdev instance.
Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
drivers/net/ring/rte_eth_ring.c | 8 ++++++++
drivers/net/ring/rte_eth_ring.h | 14 ++++++++++++++
drivers/net/ring/rte_eth_ring_version.map | 5 +++++
3 files changed, 27 insertions(+)
diff --git a/drivers/net/ring/rte_eth_ring.c b/drivers/net/ring/rte_eth_ring.c
index bfd6f4e..d851f9e 100644
--- a/drivers/net/ring/rte_eth_ring.c
+++ b/drivers/net/ring/rte_eth_ring.c
@@ -36,6 +36,7 @@
#include <rte_ethdev.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
+#include <rte_memzone.h>
#include <rte_string_fns.h>
#include <rte_dev.h>
#include <rte_kvargs.h>
@@ -392,6 +393,13 @@ error:
return -1;
}
+int
+rte_eth_from_ring(struct rte_ring *r)
+{
+ return rte_eth_from_rings(r->name, &r, 1, &r, 1,
+ r->memzone ? r->memzone->socket_id : SOCKET_ID_ANY);
+}
+
enum dev_action{
DEV_CREATE,
DEV_ATTACH
diff --git a/drivers/net/ring/rte_eth_ring.h b/drivers/net/ring/rte_eth_ring.h
index 5a69bff..4ff83ec 100644
--- a/drivers/net/ring/rte_eth_ring.h
+++ b/drivers/net/ring/rte_eth_ring.h
@@ -65,6 +65,20 @@ int rte_eth_from_rings(const char *name,
const unsigned nb_tx_queues,
const unsigned numa_node);
+/**
+ * Create a new ethdev port from a ring
+ *
+ * This function is a shortcut call for rte_eth_from_rings for the
+ * case where one wants to take a single rte_ring and use it as though
+ * it were an ethdev
+ *
+ * @param ring
+ * the ring to be used as an ethdev
+ * @return
+ * the port number of the newly created ethdev, or -1 on error
+ */
+int rte_eth_from_ring(struct rte_ring *r);
+
#ifdef __cplusplus
}
#endif
diff --git a/drivers/net/ring/rte_eth_ring_version.map
b/drivers/net/ring/rte_eth_ring_version.map
index 0875e25..8e113a4 100644
--- a/drivers/net/ring/rte_eth_ring_version.map
+++ b/drivers/net/ring/rte_eth_ring_version.map
@@ -5,3 +5,8 @@ DPDK_2.0 {
local: *;
};
+
+DPDK_2.2 {
+ global:
+ rte_eth_from_ring;
+} DPDK_2.0;
--
2.4.3
