I40E_TX_DESC_CMD_ICRC
build_ctob(I40E_TX_DESC_CMD_ICRC, 0, size, 0);
td_cmd |= I40E_TX_DESC_CMD_ICRC;
u32 cmd = I40E_TX_DESC_CMD_ICRC | xsk_is_eop_desc(desc);
u32 cmd = I40E_TX_DESC_CMD_ICRC | xsk_is_eop_desc(&desc[i]);