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From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: "Zhao1, Wei" <wei.zhao1@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix parsing fdir nvgre issue
Date: Fri, 22 Dec 2017 06:31:57 +0000	[thread overview]
Message-ID: <039ED4275CED7440929022BC67E7061153123E91@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <20171222054559.54207-1-wei.zhao1@intel.com>



> -----Original Message-----
> From: Zhao1, Wei
> Sent: Friday, December 22, 2017 1:46 PM
> To: dev@dpdk.org
> Cc: Zhang, Qi Z <qi.z.zhang@intel.com>; Zhao1, Wei <wei.zhao1@intel.com>
> Subject: [PATCH v2] net/ixgbe: fix parsing fdir nvgre issue
> 
> There is some wrong of mask check in nvgre parser for flow API.
> 
> Fixes: 11777435c727 ("net/ixgbe: parse flow director filter")
> 
> Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> 
> ---
> 
> V2:
> -change c_k_s_rsvd0_ver  mask check to 0xFFFF.
> ---
>  drivers/net/ixgbe/ixgbe_flow.c | 22 +++++++++++++++++++---
>  1 file changed, 19 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
> index 19c2d47..887d933 100644
> --- a/drivers/net/ixgbe/ixgbe_flow.c
> +++ b/drivers/net/ixgbe/ixgbe_flow.c
> @@ -2466,8 +2466,7 @@ ixgbe_parse_fdir_filter_tunnel(const struct
> rte_flow_attr *attr,
>  				item, "Not supported by fdir filter");
>  			return -rte_errno;
>  		}
> -		if (nvgre_mask->c_k_s_rsvd0_ver !=
> -			rte_cpu_to_be_16(0x3000) ||
> +		if (nvgre_mask->protocol &&
>  		    nvgre_mask->protocol != 0xFFFF) {
>  			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
>  			rte_flow_error_set(error, EINVAL,
> @@ -2475,6 +2474,15 @@ ixgbe_parse_fdir_filter_tunnel(const struct
> rte_flow_attr *attr,
>  				item, "Not supported by fdir filter");
>  			return -rte_errno;
>  		}
> +		if (nvgre_mask->c_k_s_rsvd0_ver &&
> +		    nvgre_mask->c_k_s_rsvd0_ver !=
> +			rte_cpu_to_be_16(0xFFFF)) {
> +			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
> +			rte_flow_error_set(error, EINVAL,
> +				RTE_FLOW_ERROR_TYPE_ITEM,
> +				item, "Not supported by fdir filter");
> +			return -rte_errno;
> +		}
>  		/* TNI must be totally masked or not. */
>  		if (nvgre_mask->tni[0] &&
>  		    ((nvgre_mask->tni[0] != 0xFF) ||
> @@ -2496,7 +2504,15 @@ ixgbe_parse_fdir_filter_tunnel(const struct
> rte_flow_attr *attr,
>  			nvgre_spec =
>  				(const struct rte_flow_item_nvgre *)item->spec;
>  			if (nvgre_spec->c_k_s_rsvd0_ver !=
> -			    rte_cpu_to_be_16(0x2000) ||
> +			    rte_cpu_to_be_16(0x2000) &&
> +				nvgre_mask->c_k_s_rsvd0_ver) {

It's not necessary to && with a 0xffff, why not just keep consistent with how you handle the protocol field.
BTW, I missed the issue on the i40e patch, its better if you can also capture it.

Regards
Qi

> +				memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
> +				rte_flow_error_set(error, EINVAL,
> +					RTE_FLOW_ERROR_TYPE_ITEM,
> +					item, "Not supported by fdir filter");
> +				return -rte_errno;
> +			}
> +			if (nvgre_mask->protocol &&
>  			    nvgre_spec->protocol !=
>  			    rte_cpu_to_be_16(NVGRE_PROTOCOL)) {
>  				memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
> --
> 2.9.3

  reply	other threads:[~2017-12-22  6:31 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-01  5:51 [dpdk-dev] [PATCH] " Wei Zhao
2017-12-22  5:06 ` [dpdk-dev] [PATCH v2] " Wei Zhao
2017-12-22  5:45 ` Wei Zhao
2017-12-22  6:31   ` Zhang, Qi Z [this message]
2017-12-22  7:02   ` Zhang, Qi Z
2017-12-22  7:05   ` Zhang, Qi Z
2018-01-04  8:40   ` Lu, Wenzhuo
2018-01-09  6:54     ` Zhang, Helin

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