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To: Xueming Li <xuemingl@mellanox.com>, Shahaf Shuler <shahafs@mellanox.com>,
Nelio Laranjeiro <notifications@github.com>,
Wenzhuo Lu <wenzhuo.lu@intel.com>, Jingjing Wu <jingjing.wu@intel.com>,
Thomas Monjalon <thomas@monjalon.net>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
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<20180420143023.117071-1-xuemingl@mellanox.com>
From: Ferruh Yigit <ferruh.yigit@intel.com>
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Message-ID: <6f9cfb31-850d-b52a-c1d6-abd9d1406b41@intel.com>
Date: Mon, 23 Apr 2018 17:06:42 +0100
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Subject: Re: [dpdk-dev] [PATCH v5 1/2] ethdev: add supported hash function
check
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On 4/20/2018 3:30 PM, Xueming Li wrote:
> Add supported RSS hash function check in device configuration to
> have better error verbosity for application developers.
>
> Signed-off-by: Xueming Li <xuemingl@mellanox.com>
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
> ---
> lib/librte_ether/rte_ethdev.c | 23 +++++++++++++++++++++++
> 1 file changed, 23 insertions(+)
>
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 3c049ef43..7b1dda926 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -1179,6 +1179,18 @@ rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
> ETHER_MAX_LEN;
> }
>
> + /* Check that device supports requested rss hash functions. */
> + if ((dev_info.flow_type_rss_offloads |
> + dev_conf->rx_adv_conf.rss_conf.rss_hf) !=
> + dev_info.flow_type_rss_offloads) {
> + RTE_PMD_DEBUG_TRACE("ethdev port_id=%d invalid rss_hf: "
> + "0x%"PRIx64", valid value: 0x%"PRIx64"\n",
> + port_id,
> + dev_conf->rx_adv_conf.rss_conf.rss_hf,
> + dev_info.flow_type_rss_offloads);
> + return -EINVAL;
> + }
> +
Hi Thomas,
This can break the PMDs that are not setting flow_type_rss_offloads properly.
How can we highlight this so that PMD owners can double check?