DPDK patches and discussions
 help / color / mirror / Atom feed
From: Bing Zhao <bingz@nvidia.com>
To: NBU-Contact-Thomas Monjalon <thomas@monjalon.net>
Cc: Ori Kam <orika@nvidia.com>,
	"ferruh.yigit@intel.com" <ferruh.yigit@intel.com>,
	"arybchenko@solarflare.com" <arybchenko@solarflare.com>,
	"mdr@ashroe.eu" <mdr@ashroe.eu>,
	"nhorman@tuxdriver.com" <nhorman@tuxdriver.com>,
	"bernard.iremonger@intel.com" <bernard.iremonger@intel.com>,
	"beilei.xing@intel.com" <beilei.xing@intel.com>,
	"wenzhuo.lu@intel.com" <wenzhuo.lu@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 1/6] ethdev: add hairpin bind and unbind APIs
Date: Thu, 15 Oct 2020 02:56:59 +0000
Message-ID: <CY4PR1201MB00728B8A226B7A30FD220CDAD0020@CY4PR1201MB0072.namprd12.prod.outlook.com> (raw)
In-Reply-To: <3492876.G95Fza0IFT@thomas>

Hi Thomas,

> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Wednesday, October 14, 2020 10:36 PM
> To: Bing Zhao <bingz@nvidia.com>
> Cc: Ori Kam <orika@nvidia.com>; ferruh.yigit@intel.com;
> arybchenko@solarflare.com; mdr@ashroe.eu; nhorman@tuxdriver.com;
> bernard.iremonger@intel.com; beilei.xing@intel.com;
> wenzhuo.lu@intel.com; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3 1/6] ethdev: add hairpin bind and
> unbind APIs
> 
> External email: Use caution opening links or attachments
> 
> 
> Hi,
> Cosmetic comments below:
> 
> 08/10/2020 14:05, Bing Zhao:
> > +int
> > +rte_eth_hairpin_bind(uint16_t tx_port, uint16_t rx_port) {
> > +     struct rte_eth_dev *dev;
> > +     int ret;
> > +
> > +     RTE_ETH_VALID_PORTID_OR_ERR_RET(tx_port, -EINVAL);
> 
> It should be -ENODEV

Got it, changed. BTW, I checked the ethdev and it seems some functions are using "EINVAL" and some are using "ENODEV". So should all of these functions use "ENODEV"?

> 
> > +     dev = &rte_eth_devices[tx_port];
> > +     if (!dev->data->dev_started) {
> > +             RTE_ETHDEV_LOG(ERR, "TX port %d is not started",
> tx_port);
> > +             return -EBUSY;
> > +     }
> > +
> > +     RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->hairpin_bind, -
> ENOTSUP);
> > +     ret = (*dev->dev_ops->hairpin_bind)(dev, rx_port);
> > +     if (ret)
> > +             RTE_ETHDEV_LOG(ERR, "Failed to bind hairpin TX %d "
> > +                            "to RX %d (%d - all ports)", tx_port,
> > +                            rx_port, RTE_MAX_ETHPORTS);
> 
> Looks like \n is missing.

Fixed, thanks.

> 
> > +
> > +     return ret;
> > +}
> > +
> > +int
> > +rte_eth_hairpin_unbind(uint16_t tx_port, uint16_t rx_port)
> 
> Same comments as for bind function.

Done.

> 
> [...]
> >  /**
> > + * @warning
> > + * @b EXPERIMENTAL: this API may change, or be removed, without
> prior
> > + notice
> > + *
> > + * Bind all hairpin TX queues of one port to the RX queues of the
> peer port.
> > + * It is only allowed to call this API after all hairpin queues
> are
> > + configured
> > + * properly and the devices of TX and peer RX are in started
> state.
> 
> "call this API" -> "call this function"

Done.

> 
> "devices of TX" is a strange wording.
> I would make it simpler:
> "the devices of TX and peer RX" -> "the devices"
> 
> > + *
> > + * @param tx_port
> > + *   The TX port identifier of the Ethernet device.
> 
> A device does not have a TX port.
> I think you mean "The identifier of the TX port."

Done.

> 
> > + * @param rx_port
> > + *   The peer RX port identifier of the Ethernet device.
> 
> Remove "of the Ethernet device"

Done.

> 
> > + *   RTE_MAX_ETHPORTS is allowed for the traversal of all devices.
> > + *   RX port ID could have the same value with TX port ID.
> 
> "same value as"

Done.

> 
> > + *
> > + * @return
> > + *   - (0) if successful.
> > + *   - (-EINVAL) if bad parameter.
> > + *   - (-EBUSY) if device is not in started state.
> > + *   - (-ENOTSUP) if hardware doesn't support.
> > + *   - Others detailed errors from PMD drivers.
> 
> Please add ENODEV case, maybe instead of EINVAL.

Replaced. PMD may return -EINVAL but it is not necessary so I will not list it here anymore.

> 
> > + */
> > +__rte_experimental
> > +int rte_eth_hairpin_bind(uint16_t tx_port, uint16_t rx_port);
> > +
> > +/**
> > + * @warning
> > + * @b EXPERIMENTAL: this API may change, or be removed, without
> prior
> > +notice
> > + *
> > + * Unbind all hairpin TX queues of one port from the RX queues of
> the peer port.
> > + * This should be called before closing the TX or RX devices
> > +(optional). After
> 
> Split the line after the end of sentence and start next one on a
> fresh line.
> 

Done

> > + * unbind the hairpin ports pair, it is allowed to bind them
> again.
> 
> "unbind" -> "unbinding"

Done

> 
> > + * Changing queues configuration should be after stopping the
> device.
> > + *
> > + * @param tx_port
> > + *   The TX port identifier of the Ethernet device.
> > + * @param rx_port
> > + *   The peer RX port identifier of the Ethernet device.
> > + *   RTE_MAX_ETHPORTS is allowed for traversal of all devices.
> > + *   RX port ID could have the same value with TX port ID.
> > + *
> > + * @return
> > + *   - (0) if successful.
> > + *   - (-EINVAL) if bad parameter.
> > + *   - (-EBUSY) if device is in stopped state.
> > + *   - (-ENOTSUP) if hardware doesn't support.
> > + *   - Others detailed errors from PMD drivers.
> 
> Same comments as for the bind function.

Done.

> 
> > + */
> > +__rte_experimental
> > +int rte_eth_hairpin_unbind(uint16_t tx_port, uint16_t rx_port);
> 
> 

Thanks a lot


  reply	other threads:[~2020-10-15  2:57 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-11  4:51 [dpdk-dev] [RFC] introduce support for hairpin between two ports Bing Zhao
2020-09-13 15:48 ` [dpdk-dev] [RFC PATCH v2 0/4] " Bing Zhao
2020-09-13 15:48   ` [dpdk-dev] [RFC PATCH v2 1/4] ethdev: add support for flow item transmit queue Bing Zhao
2020-09-13 15:48   ` [dpdk-dev] [RFC PATCH v2 2/4] testpmd: add item transmit queue in flow CLI Bing Zhao
2020-09-13 15:48   ` [dpdk-dev] [RFC PATCH v2 3/4] ethdev: add hairpin bind APIs Bing Zhao
2020-09-13 15:49   ` [dpdk-dev] [RFC PATCH v2 4/4] ethdev: add new attributes to hairpin queues config Bing Zhao
2020-10-01  0:25   ` [dpdk-dev] [PATCH 0/4] introduce support for hairpin between two ports Bing Zhao
2020-10-01  0:25     ` [dpdk-dev] [PATCH 1/4] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-04  9:20       ` Ori Kam
2020-10-07 11:21         ` Bing Zhao
2020-10-07 11:42           ` Ori Kam
2020-10-01  0:26     ` [dpdk-dev] [PATCH 2/4] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-04  9:22       ` Ori Kam
2020-10-07 11:32         ` Bing Zhao
2020-10-01  0:26     ` [dpdk-dev] [PATCH 3/4] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-04  9:34       ` Ori Kam
2020-10-07 11:34         ` Bing Zhao
2020-10-01  0:26     ` [dpdk-dev] [PATCH 4/4] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-04  9:39       ` Ori Kam
2020-10-07 11:36         ` Bing Zhao
2020-10-04  9:45     ` [dpdk-dev] [PATCH 0/4] introduce support for hairpin between two ports Ori Kam
2020-10-08  8:51     ` [dpdk-dev] [PATCH v2 0/6] " Bing Zhao
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 1/6] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-08  9:07         ` Ori Kam
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 2/6] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-08  9:23         ` Ori Kam
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 3/6] ethdev: add API to get hairpin peer ports list Bing Zhao
2020-10-08  9:40         ` Ori Kam
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 4/6] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-08  9:44         ` Ori Kam
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 5/6] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-08  9:45         ` Ori Kam
2020-10-08  8:51       ` [dpdk-dev] [PATCH v2 6/6] doc: update for two ports hairpin mode Bing Zhao
2020-10-08  9:47         ` Ori Kam
2020-10-08 12:05       ` [dpdk-dev] [PATCH v3 0/6] introduce support for hairpin between two ports Bing Zhao
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 1/6] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-14 14:35           ` Thomas Monjalon
2020-10-15  2:56             ` Bing Zhao [this message]
2020-10-15  7:31               ` Thomas Monjalon
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 2/6] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-12 21:37           ` Thomas Monjalon
2020-10-13 12:29             ` Bing Zhao
2020-10-13 12:41               ` Thomas Monjalon
2020-10-13 13:21                 ` Bing Zhao
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 3/6] ethdev: add API to get hairpin peer ports list Bing Zhao
2020-10-08 12:31           ` Ori Kam
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 4/6] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 5/6] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-08 12:05         ` [dpdk-dev] [PATCH v3 6/6] doc: update for two ports hairpin mode Bing Zhao
2020-10-12 21:30           ` Thomas Monjalon
2020-10-13  1:13             ` Bing Zhao
2020-10-13  6:37               ` Thomas Monjalon
2020-10-13  6:40                 ` Bing Zhao
2020-10-13 16:19         ` [dpdk-dev] [PATCH v4 0/5] introduce support for hairpin between two ports Bing Zhao
2020-10-13 16:19           ` [dpdk-dev] [PATCH v4 1/5] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-14 14:43             ` Thomas Monjalon
2020-10-15  2:59               ` Bing Zhao
2020-10-13 16:19           ` [dpdk-dev] [PATCH v4 2/5] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-13 16:19           ` [dpdk-dev] [PATCH v4 3/5] ethdev: add API to get hairpin peer ports list Bing Zhao
2020-10-14 15:02             ` Thomas Monjalon
2020-10-15  4:03               ` Bing Zhao
2020-10-13 16:19           ` [dpdk-dev] [PATCH v4 4/5] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-13 16:19           ` [dpdk-dev] [PATCH v4 5/5] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-15  5:35     ` [dpdk-dev] [PATCH v5 0/5] introduce support for hairpin between two ports Bing Zhao
2020-10-15  5:35       ` [dpdk-dev] [PATCH v5 1/5] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-15 10:34         ` Thomas Monjalon
2020-10-15 11:39           ` Bing Zhao
2020-10-15  5:35       ` [dpdk-dev] [PATCH v5 2/5] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-15 10:46         ` Thomas Monjalon
2020-10-15 13:45           ` Bing Zhao
2020-10-15  5:35       ` [dpdk-dev] [PATCH v5 3/5] ethdev: add API to get hairpin peer ports list Bing Zhao
2020-10-15  5:35       ` [dpdk-dev] [PATCH v5 4/5] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-15  5:35       ` [dpdk-dev] [PATCH v5 5/5] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-15 13:08     ` [dpdk-dev] [PATCH v6 0/5] introduce support for hairpin between two ports Bing Zhao
2020-10-15 13:08       ` [dpdk-dev] [PATCH v6 1/5] ethdev: add hairpin bind and unbind APIs Bing Zhao
2020-10-15 13:08       ` [dpdk-dev] [PATCH v6 2/5] ethdev: add new attributes to hairpin config Bing Zhao
2020-10-15 13:08       ` [dpdk-dev] [PATCH v6 3/5] ethdev: add API to get hairpin peer ports list Bing Zhao
2020-10-15 13:08       ` [dpdk-dev] [PATCH v6 4/5] ethdev: add APIs for hairpin queue operation Bing Zhao
2020-10-15 13:08       ` [dpdk-dev] [PATCH v6 5/5] app/testpmd: change hairpin queues setup Bing Zhao
2020-10-15 23:03       ` [dpdk-dev] [PATCH v6 0/5] introduce support for hairpin between two ports Ferruh Yigit
2020-10-16  1:34         ` Bing Zhao

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CY4PR1201MB00728B8A226B7A30FD220CDAD0020@CY4PR1201MB0072.namprd12.prod.outlook.com \
    --to=bingz@nvidia.com \
    --cc=arybchenko@solarflare.com \
    --cc=beilei.xing@intel.com \
    --cc=bernard.iremonger@intel.com \
    --cc=dev@dpdk.org \
    --cc=ferruh.yigit@intel.com \
    --cc=mdr@ashroe.eu \
    --cc=nhorman@tuxdriver.com \
    --cc=orika@nvidia.com \
    --cc=thomas@monjalon.net \
    --cc=wenzhuo.lu@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git