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

[Jingjing Wu]

Signed-off-by: Jingjing Wu <jingjing...@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