Hi Jijiang, On 12/02/2014 04:06 PM, Jijiang Liu wrote: > Replace PKT_TX_VXLAN_CKSUM with PKT_TX_UDP_TUNNEL_PKT in order to indicate a > packet is an UDP tunneling packet, and introduce 3 TX offload flags for outer > IP TX checksum, which are PKT_TX_OUTER_IP_CKSUM, PKT_TX_OUTER_IPV4 and > PKT_TX_OUTER_IPV6 respectively;Rework csum forward engine and i40e PMD due to > these changes. > > Signed-off-by: Jijiang Liu <jijiang.liu at intel.com> > --- > app/test-pmd/csumonly.c | 9 +++++++-- > lib/librte_mbuf/rte_mbuf.c | 7 ++++++- > lib/librte_mbuf/rte_mbuf.h | 11 ++++++++++- > lib/librte_pmd_i40e/i40e_rxtx.c | 6 +++--- > 4 files changed, 26 insertions(+), 7 deletions(-) > > diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c > index d8c080a..9094967 100644 > --- a/app/test-pmd/csumonly.c > +++ b/app/test-pmd/csumonly.c > @@ -257,7 +257,7 @@ process_outer_cksums(void *outer_l3_hdr, uint16_t > outer_ethertype, > uint64_t ol_flags = 0; > > if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM) > - ol_flags |= PKT_TX_VXLAN_CKSUM; > + ol_flags |= PKT_TX_UDP_TUNNEL_PKT; > > if (outer_ethertype == _htons(ETHER_TYPE_IPv4)) { > ipv4_hdr->hdr_checksum = 0; > @@ -470,7 +470,12 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) > { PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK }, > { PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK }, > { PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK }, > - { PKT_TX_VXLAN_CKSUM, PKT_TX_VXLAN_CKSUM }, > + { PKT_TX_UDP_TUNNEL_PKT, PKT_TX_UDP_TUNNEL_PKT > }, > + { PKT_TX_IPV4, PKT_TX_IPV4 }, > + { PKT_TX_IPV6, PKT_TX_IPV6 }, > + { PKT_TX_OUTER_IP_CKSUM, PKT_TX_OUTER_IP_CKSUM > }, > + { PKT_TX_OUTER_IPV4, PKT_TX_OUTER_IPV4 }, > + { PKT_TX_OUTER_IPV6, PKT_TX_OUTER_IPV6 }, > { PKT_TX_TCP_SEG, PKT_TX_TCP_SEG },
I still think having a flag IPV4 + another flag IP_CHECKSUM is not appropriate. I though Konstantin agreed on other flags, but I may have misunderstood: http://dpdk.org/ml/archives/dev/2014-November/009070.html Olivier