[PATCH v11 10/18] net/idpf: add support for MTU configuration

[Junfeng Guo]

Add dev ops mtu_set.

Signed-off-by: Beilei Xing <beilei.x...@intel.com>
Signed-off-by: Junfeng Guo <junfeng....@intel.com>
---
 doc/guides/nics/features/idpf.ini |  1 +
 drivers/net/idpf/idpf_ethdev.c    | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/doc/guides/nics/features/idpf.ini 
b/doc/guides/nics/features/idpf.ini
index a03068df85..d4eb9b374c 100644
--- a/doc/guides/nics/features/idpf.ini
+++ b/doc/guides/nics/features/idpf.ini
@@ -8,5 +8,6 @@
 ;
 [Features]
 Queue start/stop     = Y
+MTU update           = Y
 Packet type parsing  = Y
 Linux                = Y
diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index 80826569c8..1654af0053 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -34,6 +34,7 @@ static int idpf_dev_stop(struct rte_eth_dev *dev);
 static int idpf_dev_close(struct rte_eth_dev *dev);
 static int idpf_dev_info_get(struct rte_eth_dev *dev,
                             struct rte_eth_dev_info *dev_info);
+static int idpf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 static void idpf_adapter_rel(struct idpf_adapter *adapter);
 
 int
@@ -72,6 +73,7 @@ static const struct eth_dev_ops idpf_eth_dev_ops = {
        .tx_queue_release               = idpf_dev_tx_queue_release,
        .dev_infos_get                  = idpf_dev_info_get,
        .link_update                    = idpf_dev_link_update,
+       .mtu_set                        = idpf_dev_mtu_set,
 };
 
 static int
@@ -122,6 +124,18 @@ idpf_dev_info_get(struct rte_eth_dev *dev, struct 
rte_eth_dev_info *dev_info)
        return 0;
 }
 
+static int
+idpf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu __rte_unused)
+{
+       /* 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;
+       }
+
+       return 0;
+}
+
 static int
 idpf_init_vport_req_info(struct rte_eth_dev *dev)
 {
@@ -209,6 +223,7 @@ idpf_init_vport(struct rte_eth_dev *dev)
        vport->num_tx_complq = vport_info->num_tx_complq;
        vport->num_rx_q = vport_info->num_rx_q;
        vport->num_rx_bufq = vport_info->num_rx_bufq;
+       vport->max_mtu = vport_info->max_mtu;
        rte_memcpy(vport->default_mac_addr,
                   vport_info->default_mac_addr, ETH_ALEN);
        vport->sw_idx = idx;
-- 
2.34.1