| Message ID | 20210907104916.27560-1-mohsin.kazmi14@gmail.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Delegated to: | Ferruh Yigit |
| Headers | show |
| Series | [v4] net: fix Intel-specific Prepare the outer IPv4 hdr for checksum | expand |
| Context | Check | Description |
|---|---|---|
| ci/iol-mellanox-Performance | success | Performance Testing PASS |
| ci/iol-x86_64-compile-testing | success | Testing PASS |
| ci/intel-Testing | success | Testing PASS |
| ci/Intel-compilation | success | Compilation OK |
| ci/iol-intel-Functional | success | Functional Testing PASS |
| ci/iol-x86_64-unit-testing | success | Testing PASS |
| ci/iol-intel-Performance | success | Performance Testing PASS |
| ci/iol-aarch64-compile-testing | success | Testing PASS |
| ci/iol-broadcom-Functional | success | Functional Testing PASS |
| ci/iol-broadcom-Performance | success | Performance Testing PASS |
| ci/github-robot: build | success | github build: passed |
| ci/checkpatch | success | coding style OK |
On 9/7/2021 11:49 AM, Mohsin Kazmi wrote: > Preparation of the headers for the hardware offload > misses the outer IPv4 checksum offload. > It results in bad checksum computed by hardware NIC. > > This patch fixes the issue by setting the outer IPv4 > checksum field to 0. > > Fixes: 4fb7e803eb1a ("ethdev: add Tx preparation") > Cc: stable@dpdk.org > > Signed-off-by: Mohsin Kazmi <mohsin.kazmi14@gmail.com> > Acked-by: Qi Zhang <qi.z.zhang@intel.com> > Acked-by: Olivier Matz <olivier.matz@6wind.com> <...> > diff --git a/lib/net/rte_net.h b/lib/net/rte_net.h > index 434435ffa2..42639bc154 100644 > --- a/lib/net/rte_net.h > +++ b/lib/net/rte_net.h > @@ -125,11 +125,22 @@ rte_net_intel_cksum_flags_prepare(struct rte_mbuf *m, uint64_t ol_flags) Not directly related with this patch, but is the function 'rte_net_intel_cksum_flags_prepare()' really Intel specific? I can see sfc & ena are also using this function, should we rename it?
On 9/7/2021 11:49 AM, Mohsin Kazmi wrote: > Preparation of the headers for the hardware offload > misses the outer IPv4 checksum offload. > It results in bad checksum computed by hardware NIC. > > This patch fixes the issue by setting the outer IPv4 > checksum field to 0. > > Fixes: 4fb7e803eb1a ("ethdev: add Tx preparation") > Cc: stable@dpdk.org > > Signed-off-by: Mohsin Kazmi <mohsin.kazmi14@gmail.com> > Acked-by: Qi Zhang <qi.z.zhang@intel.com> > Acked-by: Olivier Matz <olivier.matz@6wind.com> Applied to dpdk-next-net/main, thanks. Patch title updated as following while merging: net: fix checksum offload for outer IPv4
diff --git a/lib/net/rte_net.h b/lib/net/rte_net.h index 434435ffa2..42639bc154 100644 --- a/lib/net/rte_net.h +++ b/lib/net/rte_net.h @@ -125,11 +125,22 @@ rte_net_intel_cksum_flags_prepare(struct rte_mbuf *m, uint64_t ol_flags) * Mainly it is required to avoid fragmented headers check if * no offloads are requested. */ - if (!(ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK | PKT_TX_TCP_SEG))) + if (!(ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK | PKT_TX_TCP_SEG | + PKT_TX_OUTER_IP_CKSUM))) return 0; - if (ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6)) + if (ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6)) { inner_l3_offset += m->outer_l2_len + m->outer_l3_len; + /* + * prepare outer IPv4 header checksum by setting it to 0, + * in order to be computed by hardware NICs. + */ + if (ol_flags & PKT_TX_OUTER_IP_CKSUM) { + ipv4_hdr = rte_pktmbuf_mtod_offset(m, + struct rte_ipv4_hdr *, m->outer_l2_len); + ipv4_hdr->hdr_checksum = 0; + } + } /* * Check if headers are fragmented.
Preparation of the headers for the hardware offload misses the outer IPv4 checksum offload. It results in bad checksum computed by hardware NIC. This patch fixes the issue by setting the outer IPv4 checksum field to 0. Fixes: 4fb7e803eb1a ("ethdev: add Tx preparation") Cc: stable@dpdk.org Signed-off-by: Mohsin Kazmi <mohsin.kazmi14@gmail.com> Acked-by: Qi Zhang <qi.z.zhang@intel.com> Acked-by: Olivier Matz <olivier.matz@6wind.com> --- v4: * Update the commit message v3: * Update the conditional test with PKT_TX_OUTER_IP_CKSUM. * Update the commit title with "Intel-specific". v2: * Update the commit message with Fixes. lib/net/rte_net.h | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)