From: Huazhong Tan <tanhuazhong@huawei.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: <davem@davemloft.net>, <netdev@vger.kernel.org>,
<salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
<huangdaode@huawei.com>, <linuxarm@openeuler.org>,
<linuxarm@huawei.com>, Jian Shen <shenjian15@huawei.com>
Subject: Re: [PATCH net-next 8/9] net: hns3: add support for queue bonding mode of flow director
Date: Thu, 18 Mar 2021 09:02:54 +0800 [thread overview]
Message-ID: <b7b23988-ecba-1ce4-6226-291938c92c08@huawei.com> (raw)
In-Reply-To: <20210315130448.2582a0c2@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
On 2021/3/16 4:04, Jakub Kicinski wrote:
> On Mon, 15 Mar 2021 20:23:50 +0800 Huazhong Tan wrote:
>> From: Jian Shen <shenjian15@huawei.com>
>>
>> For device version V3, it supports queue bonding, which can
>> identify the tuple information of TCP stream, and create flow
>> director rules automatically, in order to keep the tx and rx
>> packets are in the same queue pair. The driver set FD_ADD
>> field of TX BD for TCP SYN packet, and set FD_DEL filed for
>> TCP FIN or RST packet. The hardware create or remove a fd rule
>> according to the TX BD, and it also support to age-out a rule
>> if not hit for a long time.
>>
>> The queue bonding mode is default to be disabled, and can be
>> enabled/disabled with ethtool priv-flags command.
> This seems like fairly well defined behavior, IMHO we should have a full
> device feature for it, rather than a private flag.
Should we add a NETIF_F_NTUPLE_HW feature for it?
> Does the device need to be able to parse the frame fully for this
> mechanism to work? Will it work even if the TCP segment is encapsulated
> in a custom tunnel?
no, custom tunnel is not supported.
next prev parent reply other threads:[~2021-03-18 1:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 12:23 [PATCH net-next 0/9] net: hns3: refactor and new features for flow director Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 1/9] net: hns3: refactor out hclge_add_fd_entry() Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 2/9] net: hns3: refactor out hclge_fd_get_tuple() Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 3/9] net: hns3: refactor for function hclge_fd_convert_tuple Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 4/9] net: hns3: add support for traffic class tuple support for flow director by ethtool Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 5/9] net: hns3: refactor flow director configuration Huazhong Tan
2021-03-15 20:00 ` Jakub Kicinski
2021-03-17 1:47 ` Huazhong Tan
2021-03-17 18:32 ` Jakub Kicinski
2021-03-15 12:23 ` [PATCH net-next 6/9] net: hns3: refine for hns3_del_all_fd_entries() Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 7/9] net: hns3: add support for user-def data of flow director Huazhong Tan
2021-03-15 12:23 ` [PATCH net-next 8/9] net: hns3: add support for queue bonding mode " Huazhong Tan
2021-03-15 20:04 ` Jakub Kicinski
2021-03-18 1:02 ` Huazhong Tan [this message]
2021-03-18 1:28 ` Jakub Kicinski
2021-03-18 3:30 ` Alexander Duyck
2021-06-18 1:18 ` shenjian (K)
2021-06-18 22:01 ` Jakub Kicinski
2021-06-19 3:20 ` shenjian (K)
2021-03-15 12:23 ` [PATCH net-next 9/9] net: hns3: add queue bonding mode support for VF Huazhong Tan
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