[PATCH v2 2/3] net/ark: add set_mtu call to user extension API

[John Miller <john.miller@atomicrules.com>]

Allows a user extension to set a callback for the set_mtu
operation.

Signed-off-by: John Miller <john.miller@atomicrules.com>
---
 drivers/net/ark/ark_ethdev.c | 19 +++++++++++++++++++
 drivers/net/ark/ark_ext.h    |  4 ++++
 drivers/net/ark/ark_global.h |  1 +
 3 files changed, 24 insertions(+)

diff --git a/drivers/net/ark/ark_ethdev.c b/drivers/net/ark/ark_ethdev.c
index e5a8ff7..5733ba3 100644
--- a/drivers/net/ark/ark_ethdev.c
+++ b/drivers/net/ark/ark_ethdev.c
@@ -77,6 +77,7 @@ static int eth_ark_macaddr_add(struct rte_eth_dev *dev,
 			       uint32_t pool);
 static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
 				   uint32_t index);
+static int  eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t size);
 
 /*
  * The packet generator is a functional block used to generate packet
@@ -180,6 +181,7 @@ static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
 	.mac_addr_remove = eth_ark_macaddr_remove,
 	.mac_addr_set = eth_ark_set_default_mac_addr,
 
+	.mtu_set = eth_ark_set_mtu,
 };
 
 static int
@@ -257,6 +259,10 @@ static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
 		(void (*)(struct rte_eth_dev *, struct ether_addr *,
 			  void *))
 		dlsym(ark->d_handle, "mac_addr_set");
+	ark->user_ext.set_mtu =
+		(int (*)(struct rte_eth_dev *, uint16_t,
+			  void *))
+		dlsym(ark->d_handle, "set_mtu");
 
 	return found;
 }
@@ -887,6 +893,19 @@ static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
 			   ark->user_data[dev->data->port_id]);
 }
 
+static int
+eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
+{
+	struct ark_adapter *ark =
+		(struct ark_adapter *)dev->data->dev_private;
+
+	if (ark->user_ext.set_mtu)
+		return ark->user_ext.set_mtu(dev, size,
+			     ark->user_data[dev->data->port_id]);
+
+	return -ENOTSUP;
+}
+
 static inline int
 process_pktdir_arg(const char *key, const char *value,
 		   void *extra_args)
diff --git a/drivers/net/ark/ark_ext.h b/drivers/net/ark/ark_ext.h
index f805f64..63b7a26 100644
--- a/drivers/net/ark/ark_ext.h
+++ b/drivers/net/ark/ark_ext.h
@@ -112,4 +112,8 @@ void mac_addr_set(struct rte_eth_dev *dev,
 		  struct ether_addr *mac_addr,
 		  void *user_data);
 
+int set_mtu(struct rte_eth_dev *dev,
+	    uint16_t size,
+	    void *user_data);
+
 #endif
diff --git a/drivers/net/ark/ark_global.h b/drivers/net/ark/ark_global.h
index 58af8db..2a6375f 100644
--- a/drivers/net/ark/ark_global.h
+++ b/drivers/net/ark/ark_global.h
@@ -106,6 +106,7 @@ struct ark_user_ext {
 						 void *);
 	void (*mac_addr_remove)(struct rte_eth_dev *, uint32_t, void *);
 	void (*mac_addr_set)(struct rte_eth_dev *, struct ether_addr *, void *);
+	int (*set_mtu)(struct rte_eth_dev *, uint16_t, void *);
 };
 
 struct ark_adapter {
-- 
1.9.1