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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Cc: dev@dpdk.org, jerin.jacob@caviumnetworks.com,
	balasubramanian.manoharan@cavium.com, hemant.agrawal@nxp.com,
	shreyansh.jain@nxp.com
Subject: Re: [dpdk-dev] [PATCH v3 1/2] ethdev: add capability control API
Date: Mon, 06 Mar 2017 11:32:16 +0100	[thread overview]
Message-ID: <2480022.hlQWxlV5d8@xps13> (raw)
In-Reply-To: <1488589820-206947-2-git-send-email-cristian.dumitrescu@intel.com>

Hi Cristian,

2017-03-04 01:10, Cristian Dumitrescu:
> struct rte_flow_ops *eth_flow_ops;
> int rte = rte_eth_dev_filter_ctrl(eth_port_id,
> 	RTE_ETH_FILTER_GENERIC, RTE_ETH_FILTER_GET, &eth_flow_ops);
> 
> Unfortunately, the rte_flow opportunistically uses the rte_eth_dev_filter_ctrl()
> API function, which is applicable just to RX-side filters as opposed to
> introducing a mechanism that could be used by any capability in a generic way.
> 
> This is the gap that addressed by the current patch. This mechanism is intended
> to be used to introduce new capabilities into ethdev in a modular plugin-like
> approach, such as hierarchical scheduler. Over time, if agreed, it can also be
> used for exposing the existing Ethernet device capabilities in a modular way,
> such as: xstats, filters, multicast, mirroring, tunnels, time stamping, eeprom,
> bypass, etc.
> 
> Changes in v3:
> -Followed up on suggestion from Jerin: renamed capability from Hierarchical
>  Scheduler (sched) to Traffic Manager (tm)
> 
> Changes in v2:
> -Followed up on suggestion from Jerin and Hemant: renamed capability_control()
>  to capability_ops_get()
> -Added ACK from Keith, Jerin and Hemant

It is difficult to follow previous discussions as you do not
keep threading with --in-reply-to.

> Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> Acked-by: Keith Wiles <keith.wiles@intel.com>
> Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
[...]
> +enum rte_eth_capability {
> +	RTE_ETH_CAPABILITY_FLOW = 0, /**< Flow */
> +	RTE_ETH_CAPABILITY_TM, /**< Traffic Manager */
> +	RTE_ETH_CAPABILITY_MAX
> +};
[...]
>  /**
> + * Take capability operations on an Ethernet device.
> + *
> + * @param port_id
> + *   The port identifier of the Ethernet device.
> + * @param cap
> + *   The capability of the Ethernet device
> + * @param arg
> + *   A pointer to arguments defined specifically for the operation.
> + * @return
> + *   - (0) if successful.
> + *   - (-ENOTSUP) if hardware doesn't support.
> + *   - (-ENODEV) if *port_id* invalid.
> + */
> +int rte_eth_dev_capability_ops_get(uint8_t port_id,
> +	enum rte_eth_capability cap, void *arg);

What is the benefit of getting different kind of capabilities with
the same function?
enum + void* = ioctl
A self-explanatory API should have a dedicated function for each kind
of features with different argument types.

  reply	other threads:[~2017-03-06 10:32 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-04  1:10 [dpdk-dev] [PATCH v3 0/2] ethdev: abstraction layer for QoS hierarchical scheduler Cristian Dumitrescu
2017-03-04  1:10 ` [dpdk-dev] [PATCH v3 1/2] ethdev: add capability control API Cristian Dumitrescu
2017-03-06 10:32   ` Thomas Monjalon [this message]
2017-03-06 16:35     ` Dumitrescu, Cristian
2017-03-06 16:57       ` Thomas Monjalon
2017-03-06 18:28         ` Dumitrescu, Cristian
2017-03-06 20:21           ` Thomas Monjalon
2017-03-06 20:41             ` Wiles, Keith
2017-03-06 20:54               ` Stephen Hemminger
2017-03-07 10:14                 ` Dumitrescu, Cristian
2017-03-07 12:56                   ` Thomas Monjalon
2017-03-07 19:17                     ` Wiles, Keith
2017-03-06 16:36     ` Dumitrescu, Cristian
2017-05-19 17:12   ` [dpdk-dev] [PATCH v4 0/2] ethdev: abstraction layer for QoS traffic management Cristian Dumitrescu
2017-05-19 17:12     ` [dpdk-dev] [PATCH v4 1/2] ethdev: add traffic management ops get API Cristian Dumitrescu
2017-06-09 16:51       ` [dpdk-dev] [PATCH v5 0/2] ethdev: abstraction layer for QoS traffic management Cristian Dumitrescu
2017-06-09 16:51         ` [dpdk-dev] [PATCH v5 1/2] ethdev: add traffic management ops get API Cristian Dumitrescu
2017-06-09 16:51         ` [dpdk-dev] [PATCH v5 2/2] ethdev: add traffic management API Cristian Dumitrescu
2017-06-12  3:36           ` Jerin Jacob
2017-06-12 10:24             ` Dumitrescu, Cristian
2017-06-12 13:35           ` [dpdk-dev] [PATCH v6 0/2] ethdev: abstraction layer for QoS traffic management Cristian Dumitrescu
2017-06-12 13:35             ` [dpdk-dev] [PATCH v6 1/2] ethdev: add traffic management ops get API Cristian Dumitrescu
2017-06-12 13:35             ` [dpdk-dev] [PATCH v6 2/2] ethdev: add traffic management API Cristian Dumitrescu
2017-06-27 13:24             ` [dpdk-dev] [PATCH v6 0/2] ethdev: abstraction layer for QoS traffic management Dumitrescu, Cristian
2017-05-19 17:12     ` [dpdk-dev] [PATCH v4 2/2] ethdev: add traffic management API Cristian Dumitrescu
2017-05-19 17:34       ` Stephen Hemminger
2017-05-22 14:25         ` Dumitrescu, Cristian
2017-05-24 11:28       ` Hemant Agrawal
2017-05-31 13:45       ` Jerin Jacob
2017-05-31 17:05         ` Manoharan, Balasubramanian
2017-03-04  1:10 ` [dpdk-dev] [PATCH v3 2/2] ethdev: add hierarchical scheduler API Cristian Dumitrescu
2017-03-06 10:38   ` Thomas Monjalon
2017-03-06 16:59     ` Dumitrescu, Cristian
2017-03-06 20:07       ` Thomas Monjalon
2017-03-07 19:29         ` Dumitrescu, Cristian
2017-03-08  9:51           ` O'Driscoll, Tim
2017-03-10 18:37             ` Dumitrescu, Cristian
2017-03-15 12:43               ` Thomas Monjalon
2017-03-16 16:23                 ` Dumitrescu, Cristian
2017-03-16 17:29                   ` Thomas Monjalon
2017-03-16 17:40                     ` Dumitrescu, Cristian
2017-03-16 18:10                       ` Thomas Monjalon
2017-03-16 19:06                         ` Dumitrescu, Cristian
2017-03-24 19:55                           ` Dumitrescu, Cristian
2017-03-06 16:15   ` Stephen Hemminger
2017-03-06 18:17     ` Dumitrescu, Cristian
2017-03-16 17:35   ` Thomas Monjalon
2017-03-30 10:32   ` Hemant Agrawal
2017-04-07 16:51     ` Dumitrescu, Cristian
2017-04-07 13:20   ` Jerin Jacob
2017-04-07 17:47     ` Dumitrescu, Cristian
2017-04-10 14:00       ` Jerin Jacob

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