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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: netdev@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: AW1haW4tMjYxMDA1MDA3NCBTYWx0ZWRfX8YG4gUKkoYea RG+k+SzAV8S/tvRec+LyOjIjwLMNwQxsfqr5U06wzkNZBn3LYHHTqo6TT+rMyzIn0XS3PJtTgzD L9ee+IIEZESqwWtCj2b4zUyB2FC3Vr3E1HpgHVRZ9YH3capGFwuDgePnGL7kkCm/8BeT22vSQ8B KsKK+yCqKXUn72Wfi58XUJpjRDs7EfkJK88ltEPygrqK6geccumW1PTTw0GMo/tntCqEfNv+Ujv LBu8qiybvFOLPW69t/2ZmEsEjB1o3/grwnegjBlZ+XWJXiimZ6TQSRBMuDBNrA7BPqXdeAJk8Bq 1Agg5iZBNbU/xESyugjf8sYufx+tgRwz+nRy/HxXFl16v6VERWOCK6EJ7RlgzPbXY8e+nbmsrGs Vq67rar8zxe0Zrwe0kI+hG1Pu53nejQmhYPTadQFdzCFVAZ4RuPeyGNmN9NKAnrb/DKuxldNqRb iXRXRLsfWFd8VeaXrww== X-Proofpoint-GUID: 2Wq0Tix64bHiBHkW9sQjmCeokXmDQghE X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA1MDA3NCBTYWx0ZWRfXzM+ywJqCbW/t baU2XrABwaZEFZ0H2zKjM/OukN/Ib5eUVyTaft5Qpa+gzqGt5jclKT/8jIH/8WYlEn28CTJgj99 NMW3fyFVSWA5CV1NsKsTE/hJhfqWcOo= X-Proofpoint-ORIG-GUID: 2Wq0Tix64bHiBHkW9sQjmCeokXmDQghE X-Authority-Analysis: v=2.4 cv=BrQIUoX5 c=1 sm=1 tr=0 ts=6ac3f190 cx=c_pps a=SvEPeNj+VMjHSW//kvnxuw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=ApdvrIFTvTaq4_YbBQQA:9 a=QEXdDO2ut3YA:10 a=Kq8ClHjjuc5pcCNDwlU0:22 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 adultscore=0 suspectscore=0 bulkscore=0 spamscore=0 priorityscore=1501 malwarescore=0 phishscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=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 >