net/ice: support MTU setting

Add ops mtu_set.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/doc/guides/nics/features/ice.ini b/doc/guides/nics/features/ice.ini
index a42cc20..7a87de3 100644 (file)
--- a/doc/guides/nics/features/ice.ini
+++ b/doc/guides/nics/features/ice.ini
@@ -8,6 +8,8 @@ Speed capabilities   = Y
 Link status          = Y
 Link status event    = Y
 Queue start/stop     = Y
+MTU update           = Y
+Jumbo frame          = Y
 TSO                  = Y
 CRC offload          = Y
 L3 checksum offload  = Y

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index eed0c30..f7c0b36 100644 (file)
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -23,6 +23,7 @@ static void ice_dev_info_get(struct rte_eth_dev *dev,
                             struct rte_eth_dev_info *dev_info);
 static int ice_link_update(struct rte_eth_dev *dev,
                           int wait_to_complete);
+static int ice_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 
 static const struct rte_pci_id pci_id_ice_map[] = {
        { RTE_PCI_DEVICE(ICE_INTEL_VENDOR_ID, ICE_DEV_ID_E810C_BACKPLANE) },
@@ -48,6 +49,7 @@ static const struct eth_dev_ops ice_eth_dev_ops = {
        .dev_infos_get                = ice_dev_info_get,
        .dev_supported_ptypes_get     = ice_dev_supported_ptypes_get,
        .link_update                  = ice_link_update,
+       .mtu_set                      = ice_mtu_set,
        .rxq_info_get                 = ice_rxq_info_get,
        .txq_info_get                 = ice_txq_info_get,
        .rx_queue_count               = ice_rx_queue_count,
@@ -1039,6 +1041,7 @@ ice_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                DEV_RX_OFFLOAD_UDP_CKSUM |
                DEV_RX_OFFLOAD_TCP_CKSUM |
                DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
+               DEV_RX_OFFLOAD_JUMBO_FRAME |
                DEV_RX_OFFLOAD_KEEP_CRC;
        dev_info->tx_offload_capa =
                DEV_TX_OFFLOAD_IPV4_CKSUM |
@@ -1225,6 +1228,38 @@ out:
        return 0;
 }
 
+static int
+ice_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+       struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+       struct rte_eth_dev_data *dev_data = pf->dev_data;
+       uint32_t frame_size = mtu + ETHER_HDR_LEN
+                             + ETHER_CRC_LEN + ICE_VLAN_TAG_SIZE;
+
+       /* check if mtu is within the allowed range */
+       if (mtu < ETHER_MIN_MTU || frame_size > ICE_FRAME_SIZE_MAX)
+               return -EINVAL;
+
+       /* mtu setting is forbidden if port is start */
+       if (dev_data->dev_started) {
+               PMD_DRV_LOG(ERR,
+                           "port %d must be stopped before configuration",
+                           dev_data->port_id);
+               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 0;
+}
+
 static int
 ice_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
              struct rte_pci_device *pci_dev)