[dpdk-dev] [PATCH v2 09/14] net/avf: enable ops for MTU setting

[Jingjing Wu]

Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/avf/avf_ethdev.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/net/avf/avf_ethdev.c b/drivers/net/avf/avf_ethdev.c
index 170317d..d257d2a 100644
--- a/drivers/net/avf/avf_ethdev.c
+++ b/drivers/net/avf/avf_ethdev.c
@@ -93,6 +93,7 @@ static int avf_dev_rss_hash_update(struct rte_eth_dev *dev,
 				   struct rte_eth_rss_conf *rss_conf);
 static int avf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 				     struct rte_eth_rss_conf *rss_conf);
+static int avf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 static void avf_dev_set_default_mac_addr(struct rte_eth_dev *dev,
 					 struct ether_addr *mac_addr);
 
@@ -133,6 +134,7 @@ static const struct eth_dev_ops avf_eth_dev_ops = {
 	.reta_query                 = avf_dev_rss_reta_query,
 	.rss_hash_update            = avf_dev_rss_hash_update,
 	.rss_hash_conf_get          = avf_dev_rss_hash_conf_get,
+	.mtu_set                    = avf_dev_mtu_set,
 };
 
 static int
@@ -813,6 +815,34 @@ avf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static int
+avf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct avf_info *vf = AVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	uint32_t frame_size = mtu + AVF_ETH_OVERHEAD;
+	int ret = 0;
+
+	if ((mtu < ETHER_MIN_MTU) || (frame_size > AVF_FRAME_SIZE_MAX))
+		return -EINVAL;
+
+	/* mtu setting is forbidden if port is start */
+	if (dev->data->dev_started) {
+		PMD_DRV_LOG(ERR, "port must be stopped before configuration");
+		return -EBUSY;
+	}
+
+	if (frame_size > ETHER_MAX_LEN)
+		dev->data->dev_conf.rxmode.offloads |=
+				DEV_RX_OFFLOAD_JUMBO_FRAME;
+	else
+		dev->data->dev_conf.rxmode.offloads &=
+				~DEV_RX_OFFLOAD_JUMBO_FRAME;
+
+	dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+	return ret;
+}
+
 static void
 avf_dev_set_default_mac_addr(struct rte_eth_dev *dev,
 			     struct ether_addr *mac_addr)
-- 
2.4.11