On 9/13/2018 2:47 PM, Jerin Jacob wrote:
> Introduced DEV_TX_OFFLOAD_OUTER_UDP_CKSUM, DEV_TX_OFFLOAD_OUTER_TCP_CKSUM
> and DEV_TX_OFFLOAD_OUTER_SCTP_CKSUM offload flags and
>
> PKT_TX_OUTER_L4_NO_CKSUM, PKT_TX_OUTER_TCP_CKSUM, PKT_TX_OUTER_SCTP_CKSUM
> and PKT_TX_OUTER_UDP_CKSUM mbuf ol_flags to enable Tx outer L4 checksum
> offload.
>
> To use hardware Tx outer L4 checksum offload, the user needs to.
> # enable following in mbuff:
> - fill outer_l2_len and outer_l3_len in mbuf
> - set the flags PKT_TX_OUTER_TCP_CKSUM, PKT_TX_OUTER_SCTP_CKSUM or
> PKT_TX_OUTER_UDP_CKSUM
> - set the flag PKT_TX_OUTER_IPV4 or PKT_TX_OUTER_IPV6
>
> # configure DEV_TX_OFFLOAD_OUTER_* offload flags in slow path.
>
> Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
> ---
> app/test-pmd/config.c | 27 +++++++++++++++++++++++++++
> doc/guides/nics/features.rst | 6 ++++++
> lib/librte_ethdev/rte_ethdev.c | 3 +++
> lib/librte_ethdev/rte_ethdev.h | 6 ++++++
> lib/librte_mbuf/rte_mbuf.c | 5 +++++
> lib/librte_mbuf/rte_mbuf.h | 23 ++++++++++++++++++++++-
> 6 files changed, 69 insertions(+), 1 deletion(-)
>
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index 92a177e29..85f832bf0 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -773,6 +773,33 @@ port_offload_cap_display(portid_t port_id)
> else
> printf("off\n");
> }
> +
> + if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM) {
> + printf("TX Outer UDP checksum: ");
> + if (ports[port_id].dev_conf.txmode.offloads &
> + DEV_TX_OFFLOAD_OUTER_UDP_CKSUM)
> + printf("on\n");
> + else
> + printf("off\n");
> + }
> +
> + if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_TCP_CKSUM) {
> + printf("TX Outer TCP checksum: ");
> + if (ports[port_id].dev_conf.txmode.offloads &
> + DEV_TX_OFFLOAD_OUTER_TCP_CKSUM)
> + printf("on\n");
> + else
> + printf("off\n");
> + }
> +
> + if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_SCTP_CKSUM) {
> + printf("TX Outer SCTP checksum: ");
> + if (ports[port_id].dev_conf.txmode.offloads &
> + DEV_TX_OFFLOAD_OUTER_SCTP_CKSUM)
> + printf("on\n");
> + else
> + printf("off\n");
> + }
> }
There is also "csum show", "csum set" functions, can you please check that too?
And I am not sure why those functions seems only concerned about Tx csum
offloads.
