From: "Koikkara Reeny, Shibin" <shibin.koikkara.reeny@intel.com>
To: "Tahhan, Maryam" <mtahhan@redhat.com>,
"ferruh.yigit@amd.com" <ferruh.yigit@amd.com>,
"stephen@networkplumber.org" <stephen@networkplumber.org>,
"lihuisong@huawei.com" <lihuisong@huawei.com>,
"fengchengwen@huawei.com" <fengchengwen@huawei.com>,
"liuyonglong@huawei.com" <liuyonglong@huawei.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: RE: [v1] net/af_xdp: enable a sock path alongside use_cni
Date: Fri, 1 Dec 2023 09:55:14 +0000 [thread overview]
Message-ID: <DM6PR11MB3995A1F60439980E4717CE81A281A@DM6PR11MB3995.namprd11.prod.outlook.com> (raw)
In-Reply-To: <6c78956f-b3f6-483c-8072-f0e6d8610986@redhat.com>
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Thanks for reply Maryam.
My reply is below.
Regards,
Shibin
From: Maryam Tahhan <mtahhan@redhat.com>
Sent: Thursday, November 30, 2023 2:17 PM
To: Koikkara Reeny, Shibin <shibin.koikkara.reeny@intel.com>; ferruh.yigit@amd.com; stephen@networkplumber.org; lihuisong@huawei.com; fengchengwen@huawei.com; liuyonglong@huawei.com
Cc: dev@dpdk.org
Subject: Re: [v1] net/af_xdp: enable a sock path alongside use_cni
Hi Shibin
No problem.
Answer below.
BR
Maryam
On 30/11/2023 13:56, Koikkara Reeny, Shibin wrote:
Hi Maryam,
I have one more question.
Regards,
Shibin
-----Original Message-----
From: Koikkara Reeny, Shibin <shibin.koikkara.reeny@intel.com><mailto:shibin.koikkara.reeny@intel.com>
Sent: Thursday, November 30, 2023 12:14 PM
To: Tahhan, Maryam <mtahhan@redhat.com><mailto:mtahhan@redhat.com>; ferruh.yigit@amd.com<mailto:ferruh.yigit@amd.com>;
stephen@networkplumber.org<mailto:stephen@networkplumber.org>; lihuisong@huawei.com<mailto:lihuisong@huawei.com>;
fengchengwen@huawei.com<mailto:fengchengwen@huawei.com>; liuyonglong@huawei.com<mailto:liuyonglong@huawei.com>
Cc: dev@dpdk.org<mailto:dev@dpdk.org>; Tahhan, Maryam <mtahhan@redhat.com><mailto:mtahhan@redhat.com>
Subject: RE: [v1] net/af_xdp: enable a sock path alongside use_cni
Hi Maryam,
I have added some suggestion below.
Regrads,
Shibin
[snip]
Prerequisites
@@ -224,7 +225,6 @@ Howto run dpdk-testpmd with CNI plugin:
capabilities:
add:
- CAP_NET_RAW
- - CAP_BPF
Why the CAP_BPF is removed?
Good question. It's removed because in our case CAP_BPF is only needed when we want to load or unload the XDP program on the interface inside the Pod. In our case the CNI is loading the xdp program on the interface and then we are doing a handshake to get the xskmap file descriptor and so we don't need the CAP_BPF.
You will find a detailed listing of the permissions used at different stages when utilizing an XDP prog in this article https://next.redhat.com/2023/07/18/using-ebpf-in-unprivileged-pods/
I'm currently also working on enabling pinned map sharing with the af_xdp vdev eal arguments so we can integrate with bpfman for centralized BPF program lifecycle management [currently under test].
Correct me if I am wrong, Don’t we still need the CAP_BPF for bpf operations?
If CAP_BPF is not need so do we need the CAP_NET_RAW also?
[snip]
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next prev parent reply other threads:[~2023-12-01 9:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-30 9:13 Maryam Tahhan
2023-11-30 12:14 ` Koikkara Reeny, Shibin
2023-11-30 12:32 ` Maryam Tahhan
2023-11-30 13:55 ` Koikkara Reeny, Shibin
2023-11-30 13:56 ` Koikkara Reeny, Shibin
2023-11-30 14:17 ` Maryam Tahhan
2023-12-01 9:55 ` Koikkara Reeny, Shibin [this message]
2023-12-01 10:20 ` Maryam Tahhan
2023-12-01 10:49 ` Koikkara Reeny, Shibin
2023-11-30 14:30 ` Maryam Tahhan
2023-12-01 10:26 ` David Marchand
2023-12-01 10:31 ` Maryam Tahhan
2023-12-01 10:33 ` Maryam Tahhan
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