[dpdk-dev] [PATCH 1/3] net/i40e: support flexible payload parsing for FDIR
Xing, Beilei
beilei.xing at intel.com
Tue Jun 6 09:58:13 CEST 2017
> -----Original Message-----
> From: Lu, Wenzhuo
> Sent: Tuesday, June 6, 2017 3:46 PM
> To: Xing, Beilei <beilei.xing at intel.com>; Zhang, Helin
> <helin.zhang at intel.com>; Wu, Jingjing <jingjing.wu at intel.com>
> Cc: dev at dpdk.org
> Subject: RE: [dpdk-dev] [PATCH 1/3] net/i40e: support flexible payload
> parsing for FDIR
>
> Hi Beilei,
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Beilei Xing
> > Sent: Wednesday, May 24, 2017 2:10 PM
> > To: Zhang, Helin; Wu, Jingjing
> > Cc: dev at dpdk.org
> > Subject: [dpdk-dev] [PATCH 1/3] net/i40e: support flexible payload
> > parsing for FDIR
> >
> > This patch adds flexible payload parsing support for flow director filter.
> >
> > Signed-off-by: Beilei Xing <beilei.xing at intel.com>
> > ---
> > drivers/net/i40e/i40e_ethdev.h | 23 ++++
> > drivers/net/i40e/i40e_fdir.c | 19 ---
> > drivers/net/i40e/i40e_flow.c | 298
> > ++++++++++++++++++++++++++++++++++++++++-
> > 3 files changed, 317 insertions(+), 23 deletions(-)
>
> > +
> > +static int
> > +i40e_flow_store_flex_pit(struct i40e_pf *pf,
> > + struct i40e_fdir_flex_pit *flex_pit,
> > + enum i40e_flxpld_layer_idx layer_idx,
> > + uint8_t raw_id)
> > +{
> > + uint8_t field_idx;
> > +
> > + field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + raw_id;
> > + /* Check if the configuration is conflicted */
> > + if (pf->fdir.flex_pit_flag[layer_idx] &&
> > + (pf->fdir.flex_set[field_idx].src_offset != flex_pit->src_offset ||
> > + pf->fdir.flex_set[field_idx].size != flex_pit->size ||
> > + pf->fdir.flex_set[field_idx].dst_offset != flex_pit->dst_offset))
> > + return -1;
> > +
> > + if (pf->fdir.flex_pit_flag[layer_idx] &&
> > + (pf->fdir.flex_set[field_idx].src_offset == flex_pit->src_offset &&
> > + pf->fdir.flex_set[field_idx].size == flex_pit->size &&
> > + pf->fdir.flex_set[field_idx].dst_offset == flex_pit->dst_offset))
> > + return 1;
> Is this check necessary? Don't find a specific handling for this return value.
> If it's necessary, would you like to add some comments about this check?
Thanks for catching it, I think it can be deleted, will update in next version.
>
> > +
> > + pf->fdir.flex_set[field_idx].src_offset =
> > + flex_pit->src_offset;
> > + pf->fdir.flex_set[field_idx].size =
> > + flex_pit->size;
> > + pf->fdir.flex_set[field_idx].dst_offset =
> > + flex_pit->dst_offset;
> > +
> > + return 0;
> > +}
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