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net/vmxnet3: support MTU set

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(Picked up from @Charles Myers patch
https://patchwork.dpdk.org/patch/57771/)

When the mtu_set() function is not implemented, rte_eth_dev_set_mtu()
fails with -ENOTSUP and mtu is not stored in the mtu field in the
rte_eth_dev_data.  This causes the mtu in Vmxnet3_MiscConf which is
shared with hypervisor to always be set to 1500.

This may cause issues receiving jumbo frames on Enhanced Data Path
N-VDS.

Signed-off-by: Eduard Serra <eserra@vmware.com>
Acked-by: Yong Wang <yongwang@vmware.com>
This commit is contained in:
Eduard Serra 2020-03-25 12:18:51 -07:00 committed by Ferruh Yigit
parent 34283fc948
commit 40dce592f1
1 changed files with 16 additions and 0 deletions
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16
drivers/net/vmxnet3/vmxnet3_ethdev.c
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@ -87,6 +87,7 @@ static int vmxnet3_dev_info_get(struct rte_eth_dev *dev,
struct rte_eth_dev_info *dev_info);
static const uint32_t *
vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
static int vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
uint16_t vid, int on);
static int vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
@ -124,6 +125,7 @@ static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
.mac_addr_set = vmxnet3_mac_addr_set,
.dev_infos_get = vmxnet3_dev_info_get,
.dev_supported_ptypes_get = vmxnet3_dev_supported_ptypes_get,
.mtu_set = vmxnet3_dev_mtu_set,
.vlan_filter_set = vmxnet3_dev_vlan_filter_set,
.vlan_offload_set = vmxnet3_dev_vlan_offload_set,
.rx_queue_setup = vmxnet3_dev_rx_queue_setup,
@ -1166,6 +1168,8 @@ vmxnet3_dev_info_get(struct rte_eth_dev *dev,
dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
dev_info->min_mtu = VMXNET3_MIN_MTU;
dev_info->max_mtu = VMXNET3_MAX_MTU;
dev_info->speed_capa = ETH_LINK_SPEED_10G;
dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
@ -1211,6 +1215,18 @@ vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
return NULL;
}
static int
vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, __rte_unused uint16_t mtu)
{
if (dev->data->dev_started) {
PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU",
dev->data->port_id);
return -EBUSY;
}
return 0;
}
static int
vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
{