Hi

I am using dpd19.11 and having error when trying to use sriov vf of a mlx5 100G card

net_mlx5: Unexpected error in DR drop action support detection

The same code work for pf

I am not trying to do filtering on nic, but just to read from the port, 1 rx queue, 1 tx queue

Network devices using kernel driver

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0000:0b:00.0 'MT27800 Family [ConnectX-5 Virtual Function] 1018' if=ens192 drv=mlx5_core unused=igb_uio

0000:13:00.0 'VMXNET3 Ethernet Controller 07b0' if=ens224 drv=vmxnet3 unused=igb_uio *Active*

0000:1b:00.0 'VMXNET3 Ethernet Controller 07b0' if=ens256 drv=vmxnet3 unused=igb_uio *Active*

ethtool -i ens192

driver: mlx5_core

version: 5.0-0

firmware-version: 16.29.1016 (HPE0000000009)

expansion-rom-version:

bus-info: 0000:0b:00.0

supports-statistics: yes

supports-test: yes

supports-eeprom-access: no

supports-register-dump: no

supports-priv-flags: yes

Here is a part of the initialization code

struct rte_eth_conf port_conf;

memset(&port_conf, 0, sizeof(port_conf));

                port_conf.link_speeds = ETH_LINK_SPEED_AUTONEG;

port_conf.rxmode.mq_mode = (pi_nNumRxQueues > 1 ? ETH_MQ_RX_RSS : ETH_MQ_RX_NONE);

                port_conf.rxmode.max_rx_pkt_len = nMaxPacketLen; //only used with jumbo_frame.   For now, only allow packets which fit in mbufs

                port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;          //Jumbo Frame Support enabled

                if(pi_sDriverName != "net_ixgbe_vf")//if not sriov

                                port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_KEEP_CRC;      //Don't strip CRC

                port_conf.rxmode.offloads &= pi_devInfo.rx_offload_capa;  //turn off unsupported offloads

                port_conf.rx_adv_conf.rss_conf.rss_key = NULL; //use default RSS key

                port_conf.rx_adv_conf.rss_conf.rss_hf = (pi_nNumRxQueues > 1) ? GetRSSTypes(pi_sDriverName) : 0;

                port_conf.fdir_conf.mode = RTE_FDIR_MODE_NONE; //flow director off

                port_conf.intr_conf.lsc = bLSC ? 1 : 0; //enable link status change interrupt. Without this

                int ret = rte_eth_dev_configure(pi_nPort, nRxQueues, nTxQueues, &port_conf);

if (ret < 0)

                                //failure

                //Set MTU - needed for some NICs (at least mlx5 and vmxnet3) to receive jumbo packets

                ret = rte_eth_dev_set_mtu(pi_nPort, nMaxPacketLen);

                if (ret < 0)

                                //failure

struct rte_eth_rxconf rx_conf;

memset(&rx_conf, 0, sizeof(rx_conf));

                                rx_conf.rx_thresh.pthresh = DPDK_NIC_RX_PTHRESH; //ring prefetch threshold

                                rx_conf.rx_thresh.hthresh = DPDK_NIC_RX_HTHRESH; //ring host threshold

                                rx_conf.rx_thresh.wthresh = DPDK_NIC_RX_WTHRESH; //ring writeback threshold

                                rx_conf.rx_free_thresh = DPDK_NIC_RX_FREE_THRESH;

                                for(RU32 nQueue = 0; nQueue<pi_nNumRxQueues; nQueue++)

                                {                                             

                                                pool = m_memPools[nPool];

int ret = rte_eth_rx_queue_setup(

pi_nPort,

                                                                nQueue,

                                                                nRingSize,

                                                                socket,

                                                                &rx_conf,

                                                                pool);

}

rte_eth_dev_info info;

memset(&info, 0, sizeof(info));

rte_eth_dev_info_get(pi_nPort, &info);

struct rte_eth_txconf tx_conf;

tx_conf = info.default_txconf;

for(RU32 nQueue = 0 ;nQueue < pi_nNumTxQueues; nQueue++)

{

                int ret = rte_eth_tx_queue_setup(

pi_nPort,

                                nQueue,

                                nRingSize,

                                socket,

                                &tx_conf);

}

                               int ret = rte_eth_dev_start(pi_nPort);