Checksum Offload

The device supports calculation of checksum on transmitted packets and validation of received packets checksum. The adapter device offloads IPv4 checksum (L3) and TCP/UDP checksum (L4).

Checksum calculation is supported for TCP/UDP running over IPv4 and IPv6.

• ibv_exp_post_send

  • IBV_EXP_SEND_IP_CSUM

• IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT

• IBV_EXP_DEVICE_RX_CSUM_IP_PKT

• IBV_EXP_SW_PARSING_CSUM

• ibv_post_send

  • IBV_SEND_IP_CSUM

• ibv_query_device_ex

  • IBV_RAW_PACKET_CAP_IP_CSUM

• ibv_wr_post

  • IBV_SEND_IP_CSUM

• IBV_DEVICE_UD_IP_CSUM

• IBV_DEVICE_RC_IP_CSUM

• IBV_DEVICE_RAW_IP_CSUM