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From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: fengchengwen <fengchengwen@huawei.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Li, Xiaoyun" <xiaoyun.li@intel.com>,
	"anoobj@marvell.com" <anoobj@marvell.com>,
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	"Yigit, Ferruh" <ferruh.yigit@intel.com>,
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	"Jayatheerthan, Jay" <jay.jayatheerthan@intel.com>
Subject: Re: [dpdk-dev] [PATCH v5 4/7] ethdev: copy fast-path API into separate structure
Date: Mon, 11 Oct 2021 15:24:08 +0000	[thread overview]
Message-ID: <DM6PR11MB449192F148F2A4139103B8DD9AB59@DM6PR11MB4491.namprd11.prod.outlook.com> (raw)
In-Reply-To: <2f8c4eba-879f-7ee8-28c3-f8c23f1f885d@huawei.com>


> 
> Sorry to self-reply.
> 
> I think it's better the 'struct rte_eth_dev *dev' hold a pointer to the
> 'struct rte_eth_fp_ops', e.g.
> 
> 	struct rte_eth_dev {
> 		struct rte_eth_fp_ops *fp_ops;
> 		...  // other field
> 	}
> 
> The eth framework set the pointer in the rte_eth_dev_pci_allocate(), and driver fill
> corresponding callback:
> 	dev->fp_ops->rx_pkt_burst = xxx_recv_pkts;
> 	dev->fp_ops->tx_pkt_burst = xxx_xmit_pkts;
> 	...
> 
> In this way, the behavior of the primary and secondary processes can be unified, which
> is basically the same as that of the original process.

I don't think it is a good thing to do, as it nullifies one of the main thing of this approach:
fp_ops[] points to actual rx/tx functions and data only when PMD is really ready to do rx/tx
(device is properly configured and started), in other cases it points to dummy stubs.
As another drawback it will mean code changes in aach and every driver.


  parent reply	other threads:[~2021-10-11 15:24 UTC|newest]

Thread overview: 112+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20 16:28 [dpdk-dev] [RFC 0/7] hide eth dev related structures Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 1/7] eth: move ethdev 'burst' API into separate structure Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 2/7] eth: make drivers to use new API for Rx Konstantin Ananyev
2021-09-06 18:41   ` Ferruh Yigit
2021-09-14 14:28     ` Ananyev, Konstantin
2021-08-20 16:28 ` [dpdk-dev] [RFC 3/7] eth: make drivers to use new API for Tx Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 4/7] eth: make drivers to use new API for Tx prepare Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 5/7] eth: make drivers to use new API to obtain descriptor status Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 6/7] eth: make drivers to use new API for Rx queue count Konstantin Ananyev
2021-08-20 16:28 ` [dpdk-dev] [RFC 7/7] eth: hide eth dev related structures Konstantin Ananyev
2021-08-26 12:37 ` [dpdk-dev] [RFC 0/7] " Jerin Jacob
2021-09-06 18:09   ` Ferruh Yigit
2021-09-14 13:33   ` Ananyev, Konstantin
2021-09-15  9:45     ` Jerin Jacob
2021-09-22 15:08       ` Ananyev, Konstantin
2021-09-27 16:14         ` Jerin Jacob
2021-09-28  9:37           ` Ananyev, Konstantin
2021-09-22 14:09 ` [dpdk-dev] [RFC v2 0/5] " Konstantin Ananyev
2021-09-22 14:09   ` [dpdk-dev] [RFC v2 1/5] ethdev: allocate max space for internal queue array Konstantin Ananyev
2021-09-22 14:09   ` [dpdk-dev] [RFC v2 2/5] ethdev: change input parameters for rx_queue_count Konstantin Ananyev
2021-09-23  5:51     ` Wang, Haiyue
2021-09-22 14:09   ` [dpdk-dev] [RFC v2 3/5] ethdev: copy ethdev 'burst' API into separate structure Konstantin Ananyev
2021-09-23  5:58     ` Wang, Haiyue
2021-09-27 18:01       ` Jerin Jacob
2021-09-28  9:42         ` Ananyev, Konstantin
2021-09-22 14:09   ` [dpdk-dev] [RFC v2 4/5] ethdev: make burst functions to use new flat array Konstantin Ananyev
2021-09-22 14:09   ` [dpdk-dev] [RFC v2 5/5] ethdev: hide eth dev related structures Konstantin Ananyev
2021-10-01 14:02   ` [dpdk-dev] [PATCH v3 0/7] " Konstantin Ananyev
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 1/7] ethdev: allocate max space for internal queue array Konstantin Ananyev
2021-10-01 16:48       ` Ferruh Yigit
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 2/7] ethdev: change input parameters for rx_queue_count Konstantin Ananyev
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 3/7] ethdev: copy ethdev 'fast' API into separate structure Konstantin Ananyev
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 4/7] ethdev: make burst functions to use new flat array Konstantin Ananyev
2021-10-01 16:46       ` Ferruh Yigit
2021-10-01 17:40         ` Ananyev, Konstantin
2021-10-04  8:46           ` Ferruh Yigit
2021-10-04  9:20             ` Ananyev, Konstantin
2021-10-04 10:13               ` Ferruh Yigit
2021-10-04 11:17                 ` Ananyev, Konstantin
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 5/7] ethdev: add API to retrieve multiple ethernet addresses Konstantin Ananyev
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 6/7] ethdev: remove legacy Rx descriptor done API Konstantin Ananyev
2021-10-01 14:02     ` [dpdk-dev] [PATCH v3 7/7] ethdev: hide eth dev related structures Konstantin Ananyev
2021-10-01 16:53       ` Ferruh Yigit
2021-10-01 17:04         ` Ferruh Yigit
2021-10-01 17:02     ` [dpdk-dev] [PATCH v3 0/7] " Ferruh Yigit
2021-10-04 13:55     ` [dpdk-dev] [PATCH v4 " Konstantin Ananyev
2021-10-04 13:55       ` [dpdk-dev] [PATCH v4 1/7] ethdev: allocate max space for internal queue array Konstantin Ananyev
2021-10-05 12:09         ` Thomas Monjalon
2021-10-05 16:45           ` Ananyev, Konstantin
2021-10-05 16:49             ` Thomas Monjalon
2021-10-05 12:21         ` Thomas Monjalon
2021-10-04 13:55       ` [dpdk-dev] [PATCH v4 2/7] ethdev: change input parameters for rx_queue_count Konstantin Ananyev
2021-10-04 13:55       ` [dpdk-dev] [PATCH v4 3/7] ethdev: copy ethdev 'fast' API into separate structure Konstantin Ananyev
2021-10-05 13:09         ` Thomas Monjalon
2021-10-05 16:41           ` Ananyev, Konstantin
2021-10-05 16:48             ` Thomas Monjalon
2021-10-05 17:04               ` Ananyev, Konstantin
2021-10-04 13:56       ` [dpdk-dev] [PATCH v4 4/7] ethdev: make burst functions to use new flat array Konstantin Ananyev
2021-10-05  9:54         ` David Marchand
2021-10-05 10:13           ` Ananyev, Konstantin
2021-10-04 13:56       ` [dpdk-dev] [PATCH v4 5/7] ethdev: add API to retrieve multiple ethernet addresses Konstantin Ananyev
2021-10-05 13:13         ` Thomas Monjalon
2021-10-05 16:35           ` Ananyev, Konstantin
2021-10-05 16:45             ` Thomas Monjalon
2021-10-05 17:12               ` Ananyev, Konstantin
2021-10-05 17:41                 ` Thomas Monjalon
2021-10-04 13:56       ` [dpdk-dev] [PATCH v4 6/7] ethdev: remove legacy Rx descriptor done API Konstantin Ananyev
2021-10-05 13:14         ` Thomas Monjalon
2021-10-05 16:21           ` Ananyev, Konstantin
2021-10-04 13:56       ` [dpdk-dev] [PATCH v4 7/7] ethdev: hide eth dev related structures Konstantin Ananyev
2021-10-05 10:04         ` David Marchand
2021-10-05 10:43           ` Ferruh Yigit
2021-10-05 11:37             ` David Marchand
2021-10-05 15:57               ` Ananyev, Konstantin
2021-10-05 13:24         ` Thomas Monjalon
2021-10-05 16:19           ` Ananyev, Konstantin
2021-10-05 16:25             ` Thomas Monjalon
2021-10-06 16:42       ` [dpdk-dev] [PATCH v4 0/7] " Ali Alnubani
2021-10-06 17:26         ` Ali Alnubani
2021-10-07 11:27       ` [dpdk-dev] [PATCH v5 " Konstantin Ananyev
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 1/7] ethdev: remove legacy Rx descriptor done API Konstantin Ananyev
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 2/7] ethdev: allocate max space for internal queue array Konstantin Ananyev
2021-10-11  9:20           ` Andrew Rybchenko
2021-10-11 16:25             ` Ananyev, Konstantin
2021-10-11 17:15               ` Andrew Rybchenko
2021-10-11 23:06                 ` Ananyev, Konstantin
2021-10-12  5:47                   ` Andrew Rybchenko
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 3/7] ethdev: change input parameters for rx_queue_count Konstantin Ananyev
2021-10-11  8:06           ` Andrew Rybchenko
2021-10-12 17:59           ` Hyong Youb Kim (hyonkim)
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 4/7] ethdev: copy fast-path API into separate structure Konstantin Ananyev
2021-10-09 12:05           ` fengchengwen
2021-10-11  1:18             ` fengchengwen
2021-10-11  8:39               ` Andrew Rybchenko
2021-10-11 15:24               ` Ananyev, Konstantin [this message]
2021-10-11  8:35             ` Andrew Rybchenko
2021-10-11 15:15             ` Ananyev, Konstantin
2021-10-11  8:25           ` Andrew Rybchenko
2021-10-11 16:52             ` Ananyev, Konstantin
2021-10-11 17:22               ` Andrew Rybchenko
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 5/7] ethdev: make fast-path functions to use new flat array Konstantin Ananyev
2021-10-11  9:02           ` Andrew Rybchenko
2021-10-11 15:47             ` Ananyev, Konstantin
2021-10-11 17:03               ` Andrew Rybchenko
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 6/7] ethdev: add API to retrieve multiple ethernet addresses Konstantin Ananyev
2021-10-11  9:09           ` Andrew Rybchenko
2021-10-07 11:27         ` [dpdk-dev] [PATCH v5 7/7] ethdev: hide eth dev related structures Konstantin Ananyev
2021-10-11  9:20           ` Andrew Rybchenko
2021-10-11 15:54             ` Ananyev, Konstantin
2021-10-11 17:04               ` Andrew Rybchenko
2021-10-08 18:13         ` [dpdk-dev] [PATCH v5 0/7] " Slava Ovsiienko
2021-10-11  9:22         ` Andrew Rybchenko

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