Re: [dpdk-dev] [PATCH] net/i40e: fix hash enable issue in RSS flow

["Wang, ShougangX" <shougangx.wang@intel.com>]

Hi, Beilei

> -----Original Message-----
> From: Xing, Beilei <beilei.xing@intel.com>
> Sent: Friday, May 8, 2020 9:04 AM
> To: Wang, ShougangX <shougangx.wang@intel.com>; dev@dpdk.org
> Subject: RE: [PATCH] net/i40e: fix hash enable issue in RSS flow
> 
> 
> 
> > -----Original Message-----
> > From: Wang, ShougangX <shougangx.wang@intel.com>
> > Sent: Thursday, May 7, 2020 5:44 PM
> > To: dev@dpdk.org
> > Cc: Xing, Beilei <beilei.xing@intel.com>; Wang, ShougangX
> > <shougangx.wang@intel.com>
> > Subject: [PATCH] net/i40e: fix hash enable issue in RSS flow
> >
> > This patch fixes the issue that failed to create an RSS rule with type
> > L2- payload.
> >
> > Fixes: feaae285b342 ("net/i40e: support hash configuration in RSS
> > flow")
> >
> > Signed-off-by: Shougang Wang <shougangx.wang@intel.com>
> > ---
> >  drivers/net/i40e/i40e_flow.c | 14 ++++++--------
> >  1 file changed, 6 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/net/i40e/i40e_flow.c
> > b/drivers/net/i40e/i40e_flow.c index 7e64ae53a..f5f2f0d5d 100644L2-
> > --- a/drivers/net/i40e/i40e_flow.c
> > +++ b/drivers/net/i40e/i40e_flow.c
> > @@ -4511,6 +4511,7 @@ i40e_flow_parse_rss_pattern(__rte_unused
> struct
> > rte_eth_dev *dev,
> 
> <...>
> 
> > @@ -4544,8 +4545,7 @@ i40e_flow_parse_rss_pattern(__rte_unused
> struct
> > rte_eth_dev *dev,  if
> > (i40e_match_pattern(i40e_rss_pctype_patterns[i].item_array,
> >  items)) {
> >  p_info->types = i40e_rss_pctype_patterns[i].type; -rte_free(items);
> > -return 0;
> > +break;
> >  }
> >  }
> >
> > @@ -4580,11 +4580,9 @@ i40e_flow_parse_rss_pattern(__rte_unused
> > struct rte_eth_dev *dev,
> >  }
> >  break;
> >  default:
> > -rte_flow_error_set(error, EINVAL,
> > -RTE_FLOW_ERROR_TYPE_ITEM,
> > -item,
> > -"Not support range");
> > -return -rte_errno;
> > +p_info->action_flag = 0;
> > +memset(info, 0, sizeof(struct i40e_queue_regions)); return 0;
> >  }
> >  }
> >
> > @@ -4640,7 +4638,7 @@ i40e_flow_parse_rss_action(struct rte_eth_dev
> > *dev,  return -rte_errno;  }
> >
> > -if (p_info.action_flag) {
> > +if (p_info.action_flag && rss->queue_num) {
> >  for (n = 0; n < 64; n++) {
> >  if (rss->types & (hf_bit << n)) {
> >  conf_info->region[0].hw_flowtype[0] = n;
> > --
> > 2.17.1
> 
> Are the above changes relating to L2-payload?
> 
Yes, in order to resolve the conflict between hash enable and queue region which caused by ether pattern, there are also a little bit changes for queue region.

Thanks.
Shougang