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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-351464fd465sm416153eec.0.2026.10.05.11.50.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2026 11:50:53 -0700 (PDT) Message-ID: Date: Mon, 5 Oct 2026 11:50:51 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v2 2/3] net/stmmac/dwxgmac: Extend MTL/DMA support to 16 queues To: Jakub Raczynski Cc: netdev@vger.kernel.org, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, linux-kernel@vger.kernel.org, k.domagalski@samsung.com, k.tegowski@samsung.com, cs0617.lee@samsung.com, Abhishek Chauhan , maxime.chevallier@bootlin.com, Lorenzo Bianconi References: <20260601162537.553512-1-j.raczynski@samsung.com> <20260601162537.553512-3-j.raczynski@samsung.com> <1d814431-c01d-4730-ac22-c41f47f93b0e@oss.qualcomm.com> Content-Language: en-US From: Sagar Cheluvegowda In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA1MDA3NCBTYWx0ZWRfX9fIGJeyBM7Zg OqGENbzm6+xbfSbMjajszuKWLkfqdRpxpsKiariT82lOqtmhmQQtMAeLSG7u5riWa4BgP8lB90F DeTI9LghvR4EAHpfu3TPwMxMroGiqLp89fplqDoc8aZOgBip/iW/B6qatqtHnQq0vQb24GCoVpG 681iEHDdOM3ckg4Wv91LPct/r+ZQUR61hu9Txpvn5PCuk/b5RPE8lIi0EpnSww1jzkmLL9v+JUo 4h4O2kNgH8bQsBQ8ZMJUQASjSL+1HHJDGKRhkfY0cTbDusWXDf9fpAGYRjQn9K889BqrygoCNGR zAgqGrwndDubfKWrE8feMaIFM/MRBnTyR2YCW95/9AmNGIadlwQ4pfbolKEitU9+KI/odNPfTDp kRH/P5s2b3+kQZmLY9tVCf5/6pWqewiA0WThcpPeJIi3qL5S3biEBgAefOCQN23mjXXcwe/6O57 KvEZgL6IHkMqnC39L4g== X-Proofpoint-GUID: e4heyYUvkqcjGft2AShZzQ-MTBGeBflf X-Proofpoint-ORIG-GUID: e4heyYUvkqcjGft2AShZzQ-MTBGeBflf X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA1MDA3NCBTYWx0ZWRfXxCB9PxZoUpVI KfpR6DsE15AfqlN8TTozY+sSPVgBHe6VVAT2aXx4gk0Pkje//sTPXUWPnI1ZB/0LMzwvvjzjqIc /lKawVQ4S8C/YJa11e8saMQ07UZa22Q= X-Authority-Analysis: v=2.4 cv=bpTZl0ai c=1 sm=1 tr=0 ts=6ac3f18f cx=c_pps a=kVLUcbK0zfr7ocalXnG1qA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=ApdvrIFTvTaq4_YbBQQA:9 a=QEXdDO2ut3YA:10 a=vr4QvYf-bLy2KjpDp97w:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-05_05,2026-10-05_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 suspectscore=0 bulkscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610050074 On 10/5/2026 5:13 AM, Jakub Raczynski wrote: > On Fri, Oct 02, 2026 at 11:40:19AM -0700, Sagar Cheluvegowda wrote: >> On 6/1/2026 9:25 AM, Jakub Raczynski wrote: >>> New datasheets for XGMAC (3.20a and 3.40a, depending on product) support up to >>> 16 MTL/DMA queues. Before we increase max amount through macro, >>> prepare dwxgmac functions to handle that. >> Hi Jakub, >> >> We are interested in this change as well. We carry an equivalent >> change downstream for a Qualcomm XGMAC-based controller that >> implements 12 MTL/DMA queues (MAP0..MAP2), and would be glad to see >> this land upstream. >> >> Could you share what the next steps are for this series? Is a v3 >> planned? >> > Hi Sagar, > > Sadly not for foreseeable or borderline never, for few reasons: > - Increasing number of DMA channels without providing hardware DTS > configuration for that is quite an useless feature, > and there are 'issues' with me providing DTS for our hardware. > Cannot say much, but generally won't happen for very long. > - This has lowest priority and doing other projects, won't be able to > continue within reasonable amount of time. > > I will be very glad if you would continue this patch, > as I will not be able to contribute that. > > BTW. Adding Maxime to CC, since he will be most interested in this as > newest stmmac maintainer. Apologies for missing you earlier. > > BR > Jakub Raczynski Hi Jakub, Thanks for the update, and for adding Maxime. I'll check internally whether we can pick up this series and get back to you on the list. Thanks, Sagar >