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From: Andrew Rybchenko <arybchenko@solarflare.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>, <dev@dpdk.org>,
	Shepard Siegel <shepard.siegel@atomicrules.com>,
	Ed Czeck <ed.czeck@atomicrules.com>,
	"John Miller" <john.miller@atomicrules.com>,
	Igor Russkikh <igor.russkikh@aquantia.com>,
	Pavel Belous <pavel.belous@aquantia.com>,
	Somalapuram Amaranath <asomalap@amd.com>,
	Ajit Khaparde <ajit.khaparde@broadcom.com>,
	Somnath Kotur <somnath.kotur@broadcom.com>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	Sachin Saxena <sachin.saxena@nxp.com>,
	Wei Zhao <wei.zhao1@intel.com>, Jeff Guo <jia.guo@intel.com>,
	John Daley <johndale@cisco.com>,
	Hyong Youb Kim <hyonkim@cisco.com>,
	Qi Zhang <qi.z.zhang@intel.com>,
	Xiao Wang <xiao.w.wang@intel.com>,
	Beilei Xing <beilei.xing@intel.com>,
	Jingjing Wu <jingjing.wu@intel.com>,
	Qiming Yang <qiming.yang@intel.com>,
	Matan Azrad <matan@mellanox.com>,
	Shahaf Shuler <shahafs@mellanox.com>,
	"Viacheslav Ovsiienko" <viacheslavo@mellanox.com>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	"K. Y. Srinivasan" <kys@microsoft.com>,
	"Haiyang Zhang" <haiyangz@microsoft.com>,
	Long Li <longli@microsoft.com>,
	Heinrich Kuhn <heinrich.kuhn@netronome.com>,
	Jerin Jacob <jerinj@marvell.com>,
	"Nithin Dabilpuram" <ndabilpuram@marvell.com>,
	Kiran Kumar K <kirankumark@marvell.com>,
	Rasesh Mody <rmody@marvell.com>,
	Shahed Shaikh <shshaikh@marvell.com>,
	Maciej Czekaj <mczekaj@marvell.com>,
	Maxime Coquelin <maxime.coquelin@redhat.com>,
	Chenbo Xia <chenbo.xia@intel.com>,
	Zhihong Wang <zhihong.wang@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [dpdk-dev] [PATCH 2/7] ethdev: move inline device operations
Date: Sat, 29 Aug 2020 14:57:55 +0300
Message-ID: <8da6077c-ab19-f819-3a3c-b4575bc512d9@solarflare.com> (raw)
In-Reply-To: <20200824094021.2323605-2-ferruh.yigit@intel.com>

On 8/24/20 12:40 PM, Ferruh Yigit wrote:
> This patch is a preparation to hide the 'struct eth_dev_ops' from
> applications by moving some device operations from 'struct eth_dev_ops'
> to 'struct rte_eth_dev'.
> 
> Mentioned ethdev APIs are in the data path and implemented as inline
> because of performance reasons.
> 
> Exposing 'struct eth_dev_ops' to applications is bad because it is a
> contract between ethdev and PMDs, not really needs to be known by
> applications, also changes in the struct causing ABI breakages which
> shouldn't.
> 
> To be able to both keep APIs inline and hide the 'struct eth_dev_ops',
> moving device operations used in ethdev inline APIs to 'struct
> rte_eth_dev' to the same level with Rx/Tx burst functions.
> 
> The list of dev_ops moved:
> eth_rx_queue_count_t       rx_queue_count;
> eth_rx_descriptor_status_t rx_descriptor_status;
> eth_tx_descriptor_status_t tx_descriptor_status;
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>

doc/guides/nics/features.rst should be updated since it says
that status callbacks live in eth_dev_ops.

plus an net/sfc-related nit below:

[snip]

> diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
> index 65e0ff7d48..0b06bf91a0 100644
> --- a/drivers/net/sfc/sfc_ethdev.c
> +++ b/drivers/net/sfc/sfc_ethdev.c

[snip]

> @@ -1962,6 +1959,9 @@ sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
>  	dev->tx_pkt_burst = dp_tx->pkt_burst;
>  
>  	dev->dev_ops = &sfc_eth_dev_ops;
> +	dev->rx_queue_count = sfc_rx_queue_count;
> +	dev->rx_descriptor_status = sfc_rx_descriptor_status;
> +	dev->tx_descriptor_status = sfc_tx_descriptor_status;

May I ask to put it just after dev->tx_pkt_burst = ... line
since these callbacks go before dev_ops in the structure.

>  
>  	return 0;
>  
> @@ -2001,9 +2001,6 @@ sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
>  
>  static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
>  	.dev_supported_ptypes_get	= sfc_dev_supported_ptypes_get,
> -	.rx_queue_count			= sfc_rx_queue_count,
> -	.rx_descriptor_status		= sfc_rx_descriptor_status,
> -	.tx_descriptor_status		= sfc_tx_descriptor_status,
>  	.reta_query			= sfc_dev_rss_reta_query,
>  	.rss_hash_conf_get		= sfc_dev_rss_hash_conf_get,
>  	.rxq_info_get			= sfc_rx_queue_info_get,
> @@ -2069,6 +2066,9 @@ sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
>  	dev->tx_pkt_prepare = dp_tx->pkt_prepare;
>  	dev->tx_pkt_burst = dp_tx->pkt_burst;
>  	dev->dev_ops = &sfc_eth_dev_secondary_ops;
> +	dev->rx_queue_count = sfc_rx_queue_count;
> +	dev->rx_descriptor_status = sfc_rx_descriptor_status;
> +	dev->tx_descriptor_status = sfc_tx_descriptor_status;

Same here.

[snip]

  reply	other threads:[~2020-08-29 11:58 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-24  9:40 [dpdk-dev] [PATCH 1/7] ethdev: remove legacy descriptor status check API Ferruh Yigit
2020-08-24  9:40 ` [dpdk-dev] [PATCH 2/7] ethdev: move inline device operations Ferruh Yigit
2020-08-29 11:57   ` Andrew Rybchenko [this message]
2020-08-31 12:25     ` Ferruh Yigit
2020-08-24  9:40 ` [dpdk-dev] [PATCH 3/7] ethdev: make device operations struct private Ferruh Yigit
2020-08-29 12:03   ` Andrew Rybchenko
2020-08-24  9:40 ` [dpdk-dev] [PATCH 4/7] ethdev: mark internal functions Ferruh Yigit
2020-08-29 12:07   ` Andrew Rybchenko
2020-08-24  9:40 ` [dpdk-dev] [PATCH 5/7] ethdev: use hairpin helper functions Ferruh Yigit
2020-08-29 12:13   ` Andrew Rybchenko
2020-08-24  9:40 ` [dpdk-dev] [PATCH 6/7] ethdev: remove invalid symbols from map file Ferruh Yigit
2020-08-29 12:14   ` Andrew Rybchenko
2020-08-24  9:40 ` [dpdk-dev] [PATCH 7/7] ethdev: remove underscore prefix from internal API Ferruh Yigit
2020-08-29 12:16   ` Andrew Rybchenko
2020-08-29 11:47 ` [dpdk-dev] [PATCH 1/7] ethdev: remove legacy descriptor status check API Andrew Rybchenko
2020-09-03 21:09 ` [dpdk-dev] [PATCH v2 " Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 2/7] ethdev: move inline device operations Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 3/7] ethdev: make device operations struct private Ferruh Yigit
2020-09-08 12:19     ` Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 4/7] ethdev: mark internal functions Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 5/7] ethdev: use hairpin helper functions Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 6/7] ethdev: remove invalid symbols from map file Ferruh Yigit
2020-09-03 21:09   ` [dpdk-dev] [PATCH v2 7/7] ethdev: remove underscore prefix from internal API Ferruh Yigit
2020-09-09 11:12 ` [dpdk-dev] [PATCH v3 1/7] ethdev: deprecate descriptor status check API Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 2/7] ethdev: move inline device operations Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 3/7] ethdev: make device operations struct private Ferruh Yigit
2020-09-09 12:57     ` Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 4/7] ethdev: mark internal functions Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 5/7] ethdev: use hairpin helper functions Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 6/7] ethdev: remove invalid symbols from map file Ferruh Yigit
2020-09-09 11:12   ` [dpdk-dev] [PATCH v3 7/7] ethdev: remove underscore prefix from internal API Ferruh Yigit
2020-09-09 12:07   ` [dpdk-dev] [PATCH v3 1/7] ethdev: deprecate descriptor status check API David Marchand
2020-09-09 13:01 ` [dpdk-dev] [PATCH v4 " Ferruh Yigit
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 2/7] ethdev: move inline device operations Ferruh Yigit
2020-09-10  1:56     ` Sachin Saxena (OSS)
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 3/7] ethdev: make device operations struct private Ferruh Yigit
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 4/7] ethdev: mark internal functions Ferruh Yigit
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 5/7] ethdev: use hairpin helper functions Ferruh Yigit
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 6/7] ethdev: remove invalid symbols from map file Ferruh Yigit
2020-09-09 13:01   ` [dpdk-dev] [PATCH v4 7/7] ethdev: remove underscore prefix from internal API Ferruh Yigit
2020-09-10  2:04     ` Sachin Saxena (OSS)
2020-09-10 12:50   ` [dpdk-dev] [PATCH v4 1/7] ethdev: deprecate descriptor status check API Ferruh Yigit
2020-11-19 11:58 ` [dpdk-dev] [v21.02 v3 00/10] cppcheck Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 01/10] app/procinfo: fix redundant condition Ferruh Yigit
2021-01-08 10:36     ` David Marchand
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 02/10] app/procinfo: fix negative check on unsigned variable Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 03/10] app/procinfo: remove suspicious sizeof Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 04/10] app/procinfo: remove useless assignment Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 05/10] net/pcap: remove local variable shadowing outer one Ferruh Yigit
2021-01-08 10:31     ` [dpdk-dev] [dpdk-stable] " David Marchand
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 06/10] net/bonding: " Ferruh Yigit
2021-01-08 10:34     ` David Marchand
2021-01-11  1:03     ` Min Hu (Connor)
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 07/10] net/af_xdp: remove useless assignment Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 08/10] net/bnxt: fix redundant return Ferruh Yigit
2020-11-19 11:58   ` [dpdk-dev] [v21.02 v3 09/10] app/crypto-perf: remove always true condition Ferruh Yigit
2020-11-23 15:25     ` Zhang, Roy Fan
2020-11-19 11:59   ` [dpdk-dev] [v21.02 v3 10/10] net/avp: " Ferruh Yigit
2020-11-20 17:40     ` Steven Webster
2021-01-11  9:47   ` [dpdk-dev] [v21.02 v3 00/10] cppcheck David Marchand

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