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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Helin Zhang <helin.zhang@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 2/5] ethdev: add new ops of 'check_command_supported' and 'rx_classification_filter_ctl'
Date: Thu, 24 Jul 2014 09:56:32 +0200	[thread overview]
Message-ID: <1794712.d8vW817aRs@xps13> (raw)
In-Reply-To: <1406184149-11531-3-git-send-email-helin.zhang@intel.com>

2014-07-24 14:42, Helin Zhang:
> Two ops of 'check_command_supported' and 'rx_classification_filter_ctl'
> are added.
> * 'check_command_supported' is for capability discovery. In anothoer
>   word, it is to check if specific feature/command is supported by
>   the specific port.

This generic service is really needed to add NIC-specific functions.
I'd suggest to name it "is_supported".

> * 'rx_classification_filter_ctl' is for receive classifcation filter
>   configuring. e.g. hash function configuration, flow director
>   configuration. It is a common API where a lot of commands can
>   be implemented for different sub features.

Not sure about this one. You are hiding specific API in an opaque structure.
By the way, it should be in another patch.

> +/**
> + * Check if the command is supported by an Ethernet device.
> + *
> + * @param port_id
> + *   The port identifier of the Ethernet device.
> + * @param cmd
> + *   The command.
> + *
> + * @return
> + *   - (> 0) The command is supported.
> + *   - (0) The command is not supported.
> + *   - (-ENOTSUP) if hardware doesn't support.
> + *   - (-ENODEV) if <port_id> is invalid.
> + */
> +int rte_eth_dev_check_command_supported(uint8_t port_id, uint32_t cmd);

What are the possible commands?
You should define enum/constants here.

-- 
Thomas

  reply	other threads:[~2014-07-24  7:55 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-24  6:42 [dpdk-dev] [PATCH 0/5] Support configuring hash functions Helin Zhang
2014-07-24  6:42 ` [dpdk-dev] [PATCH 1/5] ethdev: Rename macros of packet classification type Helin Zhang
2014-07-24  7:48   ` Thomas Monjalon
2014-07-24  8:14     ` Zhang, Helin
2014-07-24  8:19       ` Thomas Monjalon
2014-07-24  8:23         ` Zhang, Helin
2014-07-24  6:42 ` [dpdk-dev] [PATCH 2/5] ethdev: add new ops of 'check_command_supported' and 'rx_classification_filter_ctl' Helin Zhang
2014-07-24  7:56   ` Thomas Monjalon [this message]
2014-07-24  8:49     ` Zhang, Helin
2014-07-24  6:42 ` [dpdk-dev] [PATCH 3/5] i40e: support selecting hash functions Helin Zhang
2014-07-24  7:59   ` Thomas Monjalon
2014-07-24  8:01     ` Matthew Hall
2014-07-24  8:07       ` Thomas Monjalon
2014-07-24  8:14         ` Matthew Hall
2014-07-24  8:54           ` Zhang, Helin
2014-07-24  6:42 ` [dpdk-dev] [PATCH 4/5] i40e: support configuring symmetric hash function Helin Zhang
2014-07-24  6:42 ` [dpdk-dev] [PATCH 5/5] app/testpmd: new commands for configuring hash functions Helin Zhang

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