mbuf: remove rte_ctrlmbuf

[dpdk.git] / lib / librte_pmd_e1000 / em_ethdev.c

diff --git a/lib/librte_pmd_e1000/em_ethdev.c b/lib/librte_pmd_e1000/em_ethdev.c
index 7913ff0..4555294 100644 (file)
--- a/lib/librte_pmd_e1000/em_ethdev.c
+++ b/lib/librte_pmd_e1000/em_ethdev.c
@@ -94,6 +94,8 @@ static void em_hw_control_release(struct e1000_hw *hw);
 static void em_init_manageability(struct e1000_hw *hw);
 static void em_release_manageability(struct e1000_hw *hw);
 
+static int eth_em_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
+
 static int eth_em_vlan_filter_set(struct rte_eth_dev *dev,
                uint16_t vlan_id, int on);
 static void eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask);
@@ -145,6 +147,7 @@ static struct eth_dev_ops eth_em_ops = {
        .stats_get            = eth_em_stats_get,
        .stats_reset          = eth_em_stats_reset,
        .dev_infos_get        = eth_em_infos_get,
+       .mtu_set              = eth_em_mtu_set,
        .vlan_filter_set      = eth_em_vlan_filter_set,
        .vlan_offload_set     = eth_em_vlan_offload_set,
        .rx_queue_setup       = eth_em_rx_queue_setup,
@@ -283,7 +286,7 @@ static struct eth_driver rte_em_pmd = {
        {
                .name = "rte_em_pmd",
                .id_table = pci_id_em_map,
-               .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+               .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
        },
        .eth_dev_init = eth_em_dev_init,
        .dev_private_size = sizeof(struct e1000_adapter),
@@ -1487,6 +1490,45 @@ eth_em_rar_clear(struct rte_eth_dev *dev, uint32_t index)
        e1000_rar_set(hw, addr, index);
 }
 
+static int
+eth_em_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+       struct rte_eth_dev_info dev_info;
+       struct e1000_hw *hw;
+       uint32_t frame_size;
+       uint32_t rctl;
+
+       eth_em_infos_get(dev, &dev_info);
+       frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + VLAN_TAG_SIZE;
+
+       /* check that mtu is within the allowed range */
+       if ((mtu < ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
+               return -EINVAL;
+
+       /* refuse mtu that requires the support of scattered packets when this
+        * feature has not been enabled before. */
+       if (!dev->data->scattered_rx &&
+           frame_size > dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM)
+               return -EINVAL;
+
+       hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       rctl = E1000_READ_REG(hw, E1000_RCTL);
+
+       /* switch to jumbo mode if needed */
+       if (frame_size > ETHER_MAX_LEN) {
+               dev->data->dev_conf.rxmode.jumbo_frame = 1;
+               rctl |= E1000_RCTL_LPE;
+       } else {
+               dev->data->dev_conf.rxmode.jumbo_frame = 0;
+               rctl &= ~E1000_RCTL_LPE;
+       }
+       E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+
+       /* update max frame size */
+       dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+       return 0;
+}
+
 struct rte_driver em_pmd_drv = {
        .type = PMD_PDEV,
        .init = rte_em_pmd_init,