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From: Hemant Agrawal <hemant.agrawal@nxp.com>
To: Ferruh Yigit <ferruh.yigit@amd.com>,
	"lihuisong (C)" <lihuisong@huawei.com>,
	"dev@dpdk.org" <dev@dpdk.org>, Gagandeep Singh <G.Singh@nxp.com>
Cc: "thomas@monjalon.net" <thomas@monjalon.net>,
	"andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>,
	"liuyonglong@huawei.com" <liuyonglong@huawei.com>
Subject: RE: [PATCH v3 1/2] examples/ptpclient: add the check for PTP capability
Date: Thu, 21 Sep 2023 11:22:24 +0000	[thread overview]
Message-ID: <DB9PR04MB93320D6C8AF803440B3AC0C289F8A@DB9PR04MB9332.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <7be6fe83-173f-4905-9f3b-519cdefae34f@amd.com>


> 
> On 9/21/2023 10:18 AM, lihuisong (C) wrote:
> >
> > 在 2023/9/16 1:29, Ferruh Yigit 写道:
> >> On 8/17/2023 9:42 AM, Huisong Li wrote:
> >>> If a port doesn't support PTP, there is no need to keep running app.
> >>> So this patch adds the check for PTP capability.
> >>>
> >>> Fixes: 7a04a4f67dca ("examples/ptpclient: enable Rx timestamp
> >>> offload")
> >>> Cc: stable@dpdk.org
> >>>
> >>> Signed-off-by: Huisong Li <lihuisong@huawei.com>
> >>> Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
> >>> ---
> >>>   examples/ptpclient/ptpclient.c | 5 +++++
> >>>   1 file changed, 5 insertions(+)
> >>>
> >>> diff --git a/examples/ptpclient/ptpclient.c
> >>> b/examples/ptpclient/ptpclient.c index cdf2da64df..181d8fb357 100644
> >>> --- a/examples/ptpclient/ptpclient.c
> >>> +++ b/examples/ptpclient/ptpclient.c
> >>> @@ -196,6 +196,11 @@ port_init(uint16_t port, struct rte_mempool
> >>> *mbuf_pool)
> >>>         if (dev_info.rx_offload_capa & RTE_ETH_RX_OFFLOAD_TIMESTAMP)
> >>>           port_conf.rxmode.offloads |=
> RTE_ETH_RX_OFFLOAD_TIMESTAMP;
> >>> +    else {
> >>> +        printf("port(%u) doesn't support PTP: %s\n", port,
> >>> +               strerror(-retval));
> >>> +        return -ENOTSUP;
> >>> +    }
> >>>
> >> I am not sure why TIMESTAMP offload is required for PTP, I think
> >> there is a confusion.
> > If TIMESTAMP offload is not required for PTP, there isn't PTP offload
> > in ethdev lib.
> >
> 
> What do you mean with "PTP offload"?
> 
> If you check the ptpclient sample app, it parses ptp packets in the application.

> 
> 
> >>
> >>
> >> Gagandeep, Hemant,
> >> Can you please clarify why TIMESTAMP offload is enabled?
> > looking forward to your reply.

[Hemant] as explained in other mail, it is a requirement for dpaa2. So, we are just passing the offload argument.

Well, currently there is no such offload to know HW PTP support in DPDK. It can be introduced. 

And I agree the above else should not be there atleast w.r.t TIMESTAMP OFFLOAD.

> >> .


  reply	other threads:[~2023-09-21 11:22 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-28 13:39 [PATCH 0/3] some bugfixes for PTP Dongdong Liu
2022-06-28 13:39 ` [PATCH 1/3] examples/ptpclient: add the check for PTP capability Dongdong Liu
2022-06-28 13:39 ` [PATCH 2/3] net/hns3: fix fail to receive PTP packet Dongdong Liu
2022-06-28 13:39 ` [PATCH 3/3] ethdev: add the check for the valitity of timestamp offload Dongdong Liu
2022-07-02  8:17 ` [PATCH v2 0/3] some bugfixes for PTP Dongdong Liu
2022-07-02  8:17   ` [PATCH v2 1/3] examples/ptpclient: add the check for PTP capability Dongdong Liu
2022-07-02  8:17   ` [PATCH v2 2/3] net/hns3: fix fail to receive PTP packet Dongdong Liu
2022-07-02  8:17   ` [PATCH v2 3/3] ethdev: add the check for the valitity of timestamp offload Dongdong Liu
2022-07-06 14:57     ` Andrew Rybchenko
2022-07-07  2:05       ` lihuisong (C)
2023-08-17  8:42 ` [PATCH v3 0/2] ethdev: add the check for PTP capability Huisong Li
2023-08-17  8:42   ` [PATCH v3 1/2] examples/ptpclient: " Huisong Li
2023-09-15 17:29     ` Ferruh Yigit
2023-09-21  9:18       ` lihuisong (C)
2023-09-21 11:02         ` Ferruh Yigit
2023-09-21 11:22           ` Hemant Agrawal [this message]
2023-10-20  4:05             ` lihuisong (C)
2023-09-21 11:36           ` lihuisong (C)
2023-08-17  8:42   ` [PATCH v3 2/2] ethdev: add the check for the valitity of timestamp offload Huisong Li
2023-09-15 17:46   ` [PATCH v3 0/2] ethdev: add the check for PTP capability Ferruh Yigit
2023-09-21 10:02     ` lihuisong (C)
2023-09-21 11:06       ` Ferruh Yigit
2023-09-21 11:17         ` Hemant Agrawal
2023-10-20  3:58           ` lihuisong (C)
2023-11-01 23:39             ` Ferruh Yigit
2023-11-23 11:40               ` lihuisong (C)
2023-11-01 23:39           ` Ferruh Yigit
2023-09-21 11:59         ` lihuisong (C)
2023-11-01 23:39           ` Ferruh Yigit
2023-11-23 11:56             ` lihuisong (C)
2024-01-11  6:25               ` lihuisong (C)
2024-01-26 16:54                 ` Ferruh Yigit
2024-01-27  1:52                   ` lihuisong (C)
2024-01-29 11:16                     ` Ferruh Yigit
2024-01-29 13:58                       ` lihuisong (C)
2024-01-29 15:00                         ` Ferruh Yigit

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