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From: Jeff Guo <jia.guo@intel.com>
To: Wei Zhao <wei.zhao1@intel.com>, dev@dpdk.org
Cc: stable@dpdk.org, beilei.xing@intel.com, xiaolong.ye@intel.com
Subject: Re: [dpdk-stable] [PATCH v2] net/i40e: fix flow FDIR enable issue
Date: Thu, 21 May 2020 22:27:28 +0800	[thread overview]
Message-ID: <b025718f-71f5-8bf2-cdae-e877189b8681@intel.com> (raw)
In-Reply-To: <20200521080306.17404-1-wei.zhao1@intel.com>

hi, zhaowei

On 5/21/2020 4:03 PM, Wei Zhao wrote:
> When we flush flow FDIR, all queues are disabled for FDIR.
> If FDIR rule is created again, then the flow list is empty,
> as it is the first time to create rule after flush fdir filter,
> so we need to enable FDIR for all queues. And also, disable FDIR
> for queues should be done in function i40e_flow_flush_fdir_filter().
>
> Fixes: 1491f63c7559 ("net/i40e: fix flush of flow director filter")
> Fixes: 6ae9b2b5e8c2 ("net/i40e: cache flow director enable value in Rx queue")
> Cc: stable@dpdk.org
>
> Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
>
> ---
>
> v2:
> update log info
> ---
>   drivers/net/i40e/i40e_flow.c | 10 +++++++---
>   1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
> index 25c77e7aa..8f8df6fae 100644
> --- a/drivers/net/i40e/i40e_flow.c
> +++ b/drivers/net/i40e/i40e_flow.c
> @@ -3462,6 +3462,10 @@ i40e_flow_parse_fdir_filter(struct rte_eth_dev *dev,
>   		}
>   	}
>   
> +	/* If create the first fdir rule, enable fdir check for rx queues */
> +	if (TAILQ_EMPTY(&pf->fdir.fdir_list))
> +		i40e_fdir_rx_proc_enable(dev, 1);
> +


Do you think it is make sense that move the configure out of the priors 
condition? If so the list empty check is no need here.

     if (pf->fdir.fdir_vsi == NULL) {
.....
     }

     ret = i40e_fdir_configure(dev);


>   	return 0;
>   err:
>   	i40e_fdir_teardown(pf);
> @@ -5330,9 +5334,6 @@ i40e_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
>   		return -rte_errno;
>   	}
>   
> -	/* Disable FDIR processing as all FDIR rules are now flushed */
> -	i40e_fdir_rx_proc_enable(dev, 0);
> -
>   	return ret;
>   }
>   
> @@ -5368,6 +5369,9 @@ i40e_flow_flush_fdir_filter(struct i40e_pf *pf)
>   		for (pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
>   		     pctype <= I40E_FILTER_PCTYPE_L2_PAYLOAD; pctype++)
>   			pf->fdir.inset_flag[pctype] = 0;
> +
> +		/* Disable FDIR processing as all FDIR rules are now flushed */
> +		i40e_fdir_rx_proc_enable(dev, 0);
>   	}
>   
>   	return ret;

  reply	other threads:[~2020-05-21 14:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19  7:16 [dpdk-stable] [PATCH] " Wei Zhao
2020-05-19  9:36 ` [dpdk-stable] [dpdk-dev] " Cui, LunyuanX
2020-05-20  3:18 ` [dpdk-stable] " Jeff Guo
2020-05-20  3:22   ` Zhao1, Wei
2020-05-20  4:13 ` Xing, Beilei
2020-05-20  5:13   ` Zhao1, Wei
2020-05-20  7:37     ` Xing, Beilei
2020-05-20  7:43       ` Zhao1, Wei
2020-05-21  8:03 ` [dpdk-stable] [PATCH v2] " Wei Zhao
2020-05-21 14:27   ` Jeff Guo [this message]
2020-05-22  0:59     ` Zhao1, Wei
2020-05-22  2:16       ` Jeff Guo
2020-05-22  9:18   ` Ye Xiaolong

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