Hi，zhangqi
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Friday, December 22, 2017 10:11 AM
> To: Zhao1, Wei <wei.zh...@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo...@intel.com>; Xing, Beilei
> <beilei.x...@intel.com>; Zhao1, Wei <wei.zh...@intel.com>
> Subject: RE: [dpdk-dev] [PATCH] net/i40e: add fdir nvgre parameters check
>
>
>
> > -----Original Message-----
> > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Wei Zhao
> > Sent: Friday, December 1, 2017 4:47 PM
> > To: dev@dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo...@intel.com>; Xing, Beilei
> > <beilei.x...@intel.com>; Zhao1, Wei <wei.zh...@intel.com>
> > Subject: [dpdk-dev] [PATCH] net/i40e: add fdir nvgre parameters check
> >
> > Add mask parameters check in nvgre parser for flow API.
> >
> > Fixes: 30965ca341278 ("net/i40e: add NVGRE flow parsing")
> >
> > Signed-off-by: Wei Zhao <wei.zh...@intel.com>
> > ---
> > drivers/net/i40e/i40e_flow.c | 35
> +++++++++++++++++++++++++++++++++++
> > 1 file changed, 35 insertions(+)
> >
> > diff --git a/drivers/net/i40e/i40e_flow.c
> > b/drivers/net/i40e/i40e_flow.c index
> > 7e4936e..05e54f1 100644
> > --- a/drivers/net/i40e/i40e_flow.c
> > +++ b/drivers/net/i40e/i40e_flow.c
> > @@ -3610,6 +3610,41 @@ i40e_flow_parse_nvgre_pattern(__rte_unused
> > struct rte_eth_dev *dev,
> > "Invalid TNI mask");
> > return -rte_errno;
> > }
> > + if (nvgre_mask->protocol &&
> > + nvgre_mask->protocol != 0xFFFF) {
> > + rte_flow_error_set(error, EINVAL,
> > +
> RTE_FLOW_ERROR_TYPE_ITEM,
> > + item,
> > + "Invalid NVGRE item");
> > + return -rte_errno;
> > + }
> > + if (nvgre_mask->c_k_s_rsvd0_ver &&
> > + nvgre_mask->c_k_s_rsvd0_ver !=
> > + rte_cpu_to_be_16(0x3000)) {
>
> If " c_k_s_rsvd0_ver must have value 0x2000 according to RFC 7637" , I think
> here we should have mask 0xffff to make sure each bit of c_k_s_rsvd0_ver
> be set correctly.
I will change c_k_s_rsvd0_ver mask check to 0Xffff, may be that is more
reasonable.
>
> Regards
> Qi
> > + rte_flow_error_set(error, EINVAL,
> > +
> RTE_FLOW_ERROR_TYPE_ITEM,
> > + item,
> > + "Invalid NVGRE item");
> > + return -rte_errno;
> > + }
> > + if (nvgre_spec->c_k_s_rsvd0_ver !=
> > + rte_cpu_to_be_16(0x2000) &&
> > + nvgre_mask->c_k_s_rsvd0_ver) {
> > + rte_flow_error_set(error, EINVAL,
> > +
> RTE_FLOW_ERROR_TYPE_ITEM,
> > + item,
> > + "Invalid NVGRE item");
> > + return -rte_errno;
> > + }
> > + if (nvgre_mask->protocol &&
> > + nvgre_spec->protocol !=
> > + rte_cpu_to_be_16(0x6558)) {
> > + rte_flow_error_set(error, EINVAL,
> > +
> RTE_FLOW_ERROR_TYPE_ITEM,
> > + item,
> > + "Invalid NVGRE item");
> > + return -rte_errno;
> > + }
> > rte_memcpy(((uint8_t *)&tenant_id_be + 1),
> > nvgre_spec->tni, 3);
> > filter->tenant_id =
> > --
> > 2.9.3
