Re: [dpdk-dev] [PATCH v2] net/ice: support show RSS hash configuration

["Zhang, Qi Z" <qi.z.zhang@intel.com>]

> -----Original Message-----
> From: taox.zhu@intel.com <taox.zhu@intel.com>
> Sent: Thursday, October 29, 2020 1:11 PM
> To: Yang, Qiming <qiming.yang@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; Zhu, TaoX <taox.zhu@intel.com>
> Subject: [PATCH v2] net/ice: support show RSS hash configuration
> 
> From: Zhu Tao <taox.zhu@intel.com>
> 
> Implement interface 'ice_rss_hash_conf_get' to support show RSS hash
> configuration.
> 
> Note:
>     Not support the same time setting RSS with RTE and classify API.


Only return rss_hf from latest dev_configure or dev_rss_hash_update. 
All configures from rte_flow are ignored.

And better to add above notes in ice_rss_hash_conf_get also.

Otherwise

Acked-by: Qi Zhang <qi.z.ahang@intel.com>


> 
> Signed-off-by: Zhu Tao <taox.zhu@intel.com>
> ---
>  drivers/net/ice/ice_ethdev.c | 15 +++++++++++++--
> drivers/net/ice/ice_ethdev.h |  1 +
>  2 files changed, 14 insertions(+), 2 deletions(-)
> 
> v2 changes:
>     Committed log.
> 
> diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index
> d51f3faba..ff8106317 100644
> --- a/drivers/net/ice/ice_ethdev.c
> +++ b/drivers/net/ice/ice_ethdev.c
> @@ -2923,6 +2923,16 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
>  	struct ice_vsi *vsi = pf->main_vsi;
>  	int ret;
> 
> +#define ICE_RSS_HF_ALL ( \
> +	ETH_RSS_IPV4 | \
> +	ETH_RSS_IPV6 | \
> +	ETH_RSS_NONFRAG_IPV4_UDP | \
> +	ETH_RSS_NONFRAG_IPV6_UDP | \
> +	ETH_RSS_NONFRAG_IPV4_TCP | \
> +	ETH_RSS_NONFRAG_IPV6_TCP | \
> +	ETH_RSS_NONFRAG_IPV4_SCTP | \
> +	ETH_RSS_NONFRAG_IPV6_SCTP)
> +
>  	/* Configure RSS for IPv4 with src/dst addr as input set */
>  	if (rss_hf & ETH_RSS_IPV4) {
>  		ret = ice_add_rss_cfg_wrap(pf, vsi->idx, ICE_FLOW_HASH_IPV4, @@
> -3216,6 +3226,8 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
>  			PMD_DRV_LOG(ERR, "%s GTPU_EH_IPV6_SCTP rss flow fail %d",
>  				    __func__, ret);
>  	}
> +
> +	pf->rss_hf = rss_hf & ICE_RSS_HF_ALL;
>  }
> 
>  static int ice_init_rss(struct ice_pf *pf) @@ -4439,8 +4451,7 @@
> ice_rss_hash_conf_get(struct rte_eth_dev *dev,
>  	ice_get_rss_key(vsi, rss_conf->rss_key,
>  			&rss_conf->rss_key_len);
> 
> -	/* TODO: default set to 0 as hf config is not supported now */
> -	rss_conf->rss_hf = 0;
> +	rss_conf->rss_hf = pf->rss_hf;
>  	return 0;
>  }
> 
> diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h index
> 05218af05..452fd9050 100644
> --- a/drivers/net/ice/ice_ethdev.h
> +++ b/drivers/net/ice/ice_ethdev.h
> @@ -457,6 +457,7 @@ struct ice_pf {
>  	uint64_t old_rx_bytes;
>  	uint64_t old_tx_bytes;
>  	uint64_t supported_rxdid; /* bitmap for supported RXDID */
> +	uint64_t rss_hf;
>  };
> 
>  #define ICE_MAX_QUEUE_NUM  2048
> --
> 2.18.4