From: matthew.gerlach@linux.intel.com
To: "Zhang, Tianfei" <tianfei.zhang@intel.com>
Cc: "Wu, Hao" <hao.wu@intel.com>, "trix@redhat.com" <trix@redhat.com>,
"mdf@kernel.org" <mdf@kernel.org>,
"Xu, Yilun" <yilun.xu@intel.com>,
"linux-fpga@vger.kernel.org" <linux-fpga@vger.kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v2] uio: dfl: add HSSI feature id
Date: Tue, 19 Apr 2022 10:52:05 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2204191048300.5866@rhweight-WRK1> (raw)
In-Reply-To: <BN9PR11MB548330FAA7EF6B9DAC2F0E76E3F29@BN9PR11MB5483.namprd11.prod.outlook.com>
On Tue, 19 Apr 2022, Zhang, Tianfei wrote:
>
>
>>> -----Original Message-----
>>> From: Zhang, Tianfei <tianfei.zhang@intel.com>
>>> Sent: Tuesday, April 12, 2022 2:24 PM
>>> To: Wu, Hao <hao.wu@intel.com>; trix@redhat.com; mdf@kernel.org; Xu,
>>> Yilun <yilun.xu@intel.com>; linux-fpga@vger.kernel.org;
>>> gregkh@linuxfoundation.org
>>> Cc: linux-kernel@vger.kernel.org; Matthew Gerlach
>>> <matthew.gerlach@linux.intel.com>; Zhang, Tianfei
>>> <tianfei.zhang@intel.com>
>>> Subject: [PATCH v2] uio: dfl: add HSSI feature id
>>>
>>> From: Matthew Gerlach <matthew.gerlach@linux.intel.com>
>>>
>>> Add the feature id of the OFS HSSI (High Speed Serial Interface)
>>
>> We still don't see any description on what OFS is here, or will OFS be added to
>> title as well? we don't expect another submission with the same title but for XXX
>> HSSI again.
>
> This name of HSSI module in dfl feature id table is : OFS HSSI subsystem.
>
> How about this tile:
> uio: dfl: add OFS HSSI device id
>
> Add OFS HSSI (Open FPGA Stack High Speed Serial Interface) device ID in uio_dfl driver for Intel PAC N6000 Card.
Hi Tianfei,
In the Platform Designer tool, this IP block is referred to as the HSSI
Subsystem. I think we should use the same name here. Additionally, this
subsystem is already in use in multiple cards; so I suggest dropping
any reference to a particular card.
Matthew
>
>>
>>> subsystem to table of ids supported by the uio_dfl driver. HSSI
>>> subsystem consists of harden/soft Ethernet MAC to support various
>>> ethernet usages and PCS/FEC/PMA direct modes for non-ethernet usages.
>>>
>>> We leverage the uio_dfl driver to access the HSSI subsystem on user
>>> space, because the HSSI subsystem was designed for specific purposes
>>> and does not fit into the standard MAC and net kernel subsystems.
>>>
>>> The Feature ID table of DFL can be found:
>>> https://github.com/OPAE/dfl-feature-id
>>
>> Why you put it here? even this link there is no more descriptions to understand
>> what it is. Or can be removed here.
>
> Yes, I agree, I will remove it.
>>
>>>
>>> Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
>>> Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
>>> ---
>>> v2: add HSSI introduction and the git repo of Feature ID table.
>>> ---
>>> drivers/uio/uio_dfl.c | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> diff --git a/drivers/uio/uio_dfl.c b/drivers/uio/uio_dfl.c index
>>> 89c0fc7b0cbc..660e1d0bf6b9 100644
>>> --- a/drivers/uio/uio_dfl.c
>>> +++ b/drivers/uio/uio_dfl.c
>>> @@ -45,9 +45,11 @@ static int uio_dfl_probe(struct dfl_device *ddev)
>>> }
>>>
>>> #define FME_FEATURE_ID_ETH_GROUP 0x10
>>> +#define FME_FEATURE_ID_OFS_HSSI 0x15
>>>
>>> static const struct dfl_device_id uio_dfl_ids[] = {
>>> { FME_ID, FME_FEATURE_ID_ETH_GROUP },
>>> + { FME_ID, FME_FEATURE_ID_OFS_HSSI },
>>> { }
>>> };
>>> MODULE_DEVICE_TABLE(dfl, uio_dfl_ids);
>>> --
>>> 2.26.2
>
>
next prev parent reply other threads:[~2022-04-19 17:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-12 6:23 [PATCH v2] uio: dfl: add HSSI feature id Tianfei Zhang
2022-04-16 14:47 ` Xu Yilun
2022-04-19 8:17 ` Zhang, Tianfei
2022-04-18 1:32 ` Wu, Hao
2022-04-19 8:25 ` Zhang, Tianfei
2022-04-19 17:52 ` matthew.gerlach [this message]
2022-04-26 2:31 ` Wu, Hao
2022-04-26 17:54 ` matthew.gerlach
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