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.
Checksum Offload Experimental Verbs
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ibv_exp_post_sendIBV_EXP_SEND_IP_CSUM
Checksum Offload Experimental Capabilities
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IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT
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IBV_EXP_DEVICE_RX_CSUM_IP_PKT
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IBV_EXP_SW_PARSING_CSUM
Checksum Offload RDMA-Core Verbs
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ibv_post_sendIBV_SEND_IP_CSUM
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ibv_query_device_exIBV_RAW_PACKET_CAP_IP_CSUM
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ibv_wr_postIBV_SEND_IP_CSUM
Checksum Offload RDMA-Core Experimental Capabilities
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IBV_DEVICE_UD_IP_CSUM
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IBV_DEVICE_RC_IP_CSUM
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IBV_DEVICE_RAW_IP_CSUM
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