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net-next 0/7] Remove three Sun net drivers Content-Language: en-US To: Anirudh Venkataramanan , netdev@vger.kernel.org Cc: linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mips@vger.kernel.org, linux-trace-kernel@vger.kernel.org, sparclinux@vger.kernel.org, Leon Romanovsky , John Paul Adrian Glaubitz References: <20230106220020.1820147-1-anirudh.venkataramanan@intel.com> <048ca2e1-4490-21da-b95f-8be018d64e5a@intel.com> From: Karl Volz In-Reply-To: <048ca2e1-4490-21da-b95f-8be018d64e5a@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SA0PR11CA0024.namprd11.prod.outlook.com (2603:10b6:806:d3::29) To BLAPR10MB4945.namprd10.prod.outlook.com (2603:10b6:208:324::13) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BLAPR10MB4945:EE_|MW4PR10MB6679:EE_ X-MS-Office365-Filtering-Correlation-Id: 4f895c81-fa87-46cf-d22c-08daf03d414c X-MS-Exchange-SenderADCheck: 1 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X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR10MB6679 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-06_14,2023-01-06_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 adultscore=0 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301060183 X-Proofpoint-ORIG-GUID: xmgIWEMMvFO_-1fdL-eOGHjz6qb9jzRD X-Proofpoint-GUID: xmgIWEMMvFO_-1fdL-eOGHjz6qb9jzRD Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On 1/6/23 16:10, Anirudh Venkataramanan wrote: > On 1/6/2023 2:44 PM, Karl Volz wrote: >> >> >> On 1/6/23 15:00, Anirudh Venkataramanan wrote: >>> This series removes the Sun Cassini, LDOM vswitch and sunvnet drivers. >>> >>> In a recent patch series that touched these drivers [1], it was >>> suggested >>> that these drivers should be removed completely. git logs suggest that >>> there hasn't been any significant feature addition, improvement or >>> fixes >>> to user-visible bugs in a while. A web search didn't indicate any >>> recent >>> discussions or any evidence that there are users out there who care >>> about >>> these drivers. >>> >>> The idea behind putting out this series is to either establish that >>> these >>> drivers are used and should be maintained, or remove them. >> Anirudh, >> >> The Sun LDOM vswitch and sunvnet drivers are still in use, please do >> not remove them or the event tracing. >> We use them internally and you don't see any discussions because they >> generally work fine (AFAIK). > > Hello Karl, > > Thanks for chiming in. > > Are there recent platforms where these drivers are used? If yes, do > you know which ones? Or are these drivers useful in old/legacy > platforms that are still around but perhaps no longer in production? These drivers work on older T4, T5, etc  to the latest T7, T8 Sun servers (e.g. T8-2, T8-4, note, T7/T8 are still in production). They may also work on T2/T3  (but I don't use those anymore, though Adrian (John Paul Adrian Glaubitz ) might). You might have missed a lot of the linux SPARC developers since they are on the debian-sparc@lists.debian.org list, hence I'd ask there also. > >> I think you are also going to break things by removing Sun Cassini >> support, but I am not using it personally. > > You suspect there are users for this driver as well? Yes, they may not have seen this yet or recognized the servers this card goes in (post on debian-sparc@lists.debian.org list). > >> What user visible bugs are you referring to here? > > I was saying I don't see any evidence of recent bug fixes, which would > make sense if these drivers "just work". ok, no worries. Cheers Karl > > Ani