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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Wei Zhao <wei.zhao1@intel.com>, dev@dpdk.org
Cc: Wenzhuo Lu <wenzhuo.lu@intel.com>
Subject: Re: [dpdk-dev] [PATCH 3/3] net/i40e: implement device reset on port
Date: Wed, 8 Mar 2017 11:20:39 +0000	[thread overview]
Message-ID: <08c8c198-7202-f45c-80d9-580a15bc7569@intel.com> (raw)
In-Reply-To: <1488516984-34702-4-git-send-email-wei.zhao1@intel.com>

On 3/3/2017 4:56 AM, Wei Zhao wrote:
> Implement the device reset function on vf port.
> This restart function will detach device then
> attach device, reconfigure dev, re-setup the Rx/Tx queues.
> 
> Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

<...>

> +static int i40evf_dev_uninit(struct rte_eth_dev *eth_dev);
> +static int i40evf_dev_init(struct rte_eth_dev *eth_dev);
> +static void i40evf_dev_close(struct rte_eth_dev *dev);
> +static int i40evf_dev_start(struct rte_eth_dev *dev);
> +static int i40evf_dev_configure(struct rte_eth_dev *dev);
> +static int i40evf_handle_vf_reset(struct rte_eth_dev *dev);

Some of them already seems declared, please avoid unnecessary or
duplicate declarations.

> +
>  
>  /* Default hash key buffer for RSS */
>  static uint32_t rss_key_default[I40E_VFQF_HKEY_MAX_INDEX + 1];
> @@ -230,6 +237,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {
>  	.rss_hash_conf_get    = i40evf_dev_rss_hash_conf_get,
>  	.mtu_set              = i40evf_dev_mtu_set,
>  	.mac_addr_set         = i40evf_set_default_mac_addr,
> +	.dev_reset            = i40evf_handle_vf_reset,
>  };
>  
>  /*
> @@ -885,10 +893,13 @@ i40evf_add_mac_addr(struct rte_eth_dev *dev,
>  	args.out_buffer = vf->aq_resp;
>  	args.out_size = I40E_AQ_BUF_SZ;
>  	err = i40evf_execute_vf_cmd(dev, &args);
> -	if (err)
> +	if (err) {
>  		PMD_DRV_LOG(ERR, "fail to execute command "
>  			    "OP_ADD_ETHER_ADDRESS");
> -
> +		goto DONE;

Please prefer lowercase labels,
also this is error exit, I would prefer other name than "done"

> +	}
> +	vf->vsi.mac_num++;
> +DONE:
>  	return;
>  }
>  

<...>

> +static int
> +i40evf_handle_vf_reset(struct rte_eth_dev *dev)
> +{
> +	struct i40e_adapter *adapter =
> +		I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> +
> +	if (!dev->data->dev_started)
> +		return 0;
> +
> +	adapter->reset_number = 1;
> +	i40e_vf_reset_dev(dev);

What happens if user called this function for PF ?

> +	adapter->reset_number = 0;
> +
> +	return 0;
> +}
> +

<...>

  reply	other threads:[~2017-03-08 11:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03  4:56 [dpdk-dev] [PATCH 0/3] net/i40e: vf port reset Wei Zhao
2017-03-03  4:56 ` [dpdk-dev] [PATCH 1/3] app/testpmd: add port reset command into testpmd Wei Zhao
2017-03-08 11:07   ` Ferruh Yigit
2017-03-14  7:58     ` Zhao1, Wei
2017-03-27  7:08       ` Zhao1, Wei
2017-03-03  4:56 ` [dpdk-dev] [PATCH 2/3] lib/librte_ether: add support for port reset Wei Zhao
2017-03-03  4:56 ` [dpdk-dev] [PATCH 3/3] net/i40e: implement device reset on port Wei Zhao
2017-03-08 11:20   ` Ferruh Yigit [this message]
2017-03-14  6:46     ` Zhao1, Wei
2017-03-24  8:31       ` Wu, Jingjing
2017-03-24  9:07   ` Wu, Jingjing
2017-03-27  6:10     ` Zhao1, Wei
2017-03-24  5:57 ` [dpdk-dev] [PATCH 0/3] net/i40e: vf port reset Wu, Jingjing
2017-03-27  6:17   ` Zhao1, Wei

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