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From: Chengchang Tang <tangchengchang@huawei.com>
To: <dev@dpdk.org>
Cc: <thomas@monjalon.net>, <ferruh.yigit@intel.com>,
	<linuxarm@huawei.com>, <arybchenko@solarflare.com>
Subject: Re: [dpdk-dev] [RFC v2 0/3] add rx buffer size for rte_eth_rxq_info
Date: Tue, 28 Jul 2020 14:29:26 +0800
Message-ID: <6da5b3f1-bc8b-a601-3da5-e0321ac7ca81@huawei.com> (raw)
In-Reply-To: <1595399890-27300-1-git-send-email-tangchengchang@huawei.com>

Friendly ping

On 2020/7/22 14:38, Chengchang Tang wrote:
> In common practice, PMD configure the rx buffer size which indicate the
> buffer length could be used for hw in receiving packts according to the
> data room size of the object in mempool. But in fact the final value is
> related to the specifications of hw, and its values will affect the number
> of fragments in recieving pkts when scatter is enabled. By the way, some
> PMDs may force to enable scatter when the MTU is bigger than the hw rx
> buffer size.
> 
> At present, we seem to have no way to expose relevant information to upper
> layer users.
> 
> So, add a field named rx_buf_size in rte_eth_rxq_info to indicate the
> buffer size used in recieving pkts for hw. And this patchset also add hns3
> PMD implementation and update the testpmd to clarify intention.
> 
> v2:
> Add hns3 implementation and update testpmd.
> 
> Chengchang Tang (2):
>   ethdev: add a field for rte_eth_rxq_info
>   app/testpmd: Add RX buffer size dispaly in queue info querry
> 
> Huisong Li (1):
>   net/hns3: add support for query of rx/tx queue info
> 
>  app/test-pmd/config.c             |  1 +
>  drivers/net/hns3/hns3_ethdev.c    |  2 ++
>  drivers/net/hns3/hns3_ethdev_vf.c |  2 ++
>  drivers/net/hns3/hns3_rxtx.c      | 48 +++++++++++++++++++++++++++++++++++++++
>  drivers/net/hns3/hns3_rxtx.h      |  4 ++++
>  lib/librte_ethdev/rte_ethdev.h    |  2 ++
>  6 files changed, 59 insertions(+)
> 
> --
> 2.7.4
> 
> _______________________________________________
> Linuxarm mailing list
> Linuxarm@huawei.com
> http://hulk.huawei.com/mailman/listinfo/linuxarm
> 
> .
> 


  parent reply	other threads:[~2020-07-28  6:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-23  6:48 [dpdk-dev] [RFC] ethdev: add a field " Chengchang Tang
2020-06-23  9:30 ` Andrew Rybchenko
2020-06-24  3:48   ` Chengchang Tang
2020-06-24  8:52     ` Ferruh Yigit
2020-06-24 18:32       ` Ferruh Yigit
2020-06-25  9:06         ` Andrew Rybchenko
2020-06-23 14:48 ` Stephen Hemminger
2020-06-23 15:22   ` Andrew Rybchenko
2020-07-22  6:38 ` [dpdk-dev] [RFC v2 0/3] add rx buffer size " Chengchang Tang
2020-07-22  6:38   ` [dpdk-dev] [RFC v2 1/3] ethdev: add a field " Chengchang Tang
2020-07-22  6:38   ` [dpdk-dev] [RFC v2 2/3] net/hns3: add support for query of rx/tx queue info Chengchang Tang
2020-07-22  6:38   ` [dpdk-dev] [RFC v2 3/3] app/testpmd: Add RX buffer size dispaly in queue info querry Chengchang Tang
2020-07-28  6:29   ` Chengchang Tang [this message]
2020-07-28  9:30     ` [dpdk-dev] [RFC v2 0/3] add rx buffer size for rte_eth_rxq_info Ferruh Yigit
2020-07-28 11:39       ` Chengchang Tang
2020-07-28 15:27         ` Thomas Monjalon

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