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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8434b0112edsm16574313b3a.45.2026.06.18.00.11.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 18 Jun 2026 00:11:06 -0700 (PDT) Message-ID: <19533f4d-9fd7-41ba-bd57-f7af092aaf6a@oss.qualcomm.com> Date: Thu, 18 Jun 2026 15:11:03 +0800 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: [RESEND PATCH 2/2] wifi: ath12k: enable threaded NAPI when DP IRQ affinity is unavailable To: Hangtian Zhu , tglx@kernel.org, jjohnson@kernel.org Cc: linux-wireless@vger.kernel.org, ath12k@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260519011627.713068-1-hangtian.zhu@oss.qualcomm.com> <20260519011627.713068-3-hangtian.zhu@oss.qualcomm.com> From: Baochen Qiang Content-Language: en-US In-Reply-To: <20260519011627.713068-3-hangtian.zhu@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: m2A2H92BEMW3_9caSdyWSznGAqDyLqEh X-Proofpoint-GUID: m2A2H92BEMW3_9caSdyWSznGAqDyLqEh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE4MDA2NCBTYWx0ZWRfX1HSlIyB/aF08 YpYGMuwTZDa3cxocZwxee5ka1sCqzTr4PhNeuqaE/q/GDHl0WtJYEnGuUZf0InVDySSfKIU3TEg Nh54kVvR9SipE3RF/AKETmyA3lrho8KxkiYVkqoj0PxOkRppvJ34Thtbe9w+9T1xjHPac+w+Dxi 0S9I/CT7+kodaVGgXQQA/O1KVuxDD0E4TcyLyKwqHXGoP3o5r1uOKUHwaYawuGt7LccLDU2sszt R5ScMjqpQkQgN9d9QXm6oGbc5V5RLxJQHgHk2TWiQBAiR/LoJaspt63PZZJseuLsdT8v4+Svvu+ 774j3RVS1gQeku+X8Uvu8P5FFpV6xwuNGUMEbY7FsAoBo9k44xcZ57DghIlx9NvKs0V9LdUWB+r VT/kJCZp4wsXnryX+WIG650e2mS5Y0Ain6sVFFe02GrcCtCBhdQVs1vIFEz6JjqUrEqTs+zsNyo TWpZ/IxtdhlHw/eoOug== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE4MDA2NCBTYWx0ZWRfX/1VZbjK4Mdz0 Vhks3Yz8/LB+3xzUAobIsR5gDuYaCbdr4kpsoHELoPjJzzHGrFh5dlb+zCtPBXguXzJd27UG/LD 7Me2Te8qHEwBZ9FXyY5nKgLhXh+6b1E= X-Authority-Analysis: v=2.4 cv=YJKvDxGx c=1 sm=1 tr=0 ts=6a339a0d cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=p1D2W8PGoTfUkLiTzOkA:9 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-17_02,2026-06-17_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 adultscore=0 impostorscore=0 clxscore=1015 suspectscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606180064 On 5/19/2026 9:16 AM, Hangtian Zhu wrote: > Determine threaded NAPI policy from runtime IRQ capability of the DP MSI > IRQ. > > If irq_can_set_affinity() reports that affinity cannot be set, enable > threaded NAPI for DP interrupt groups so datapath processing is not > constrained by a single-CPU softirq context. > > On RB3Gen2, where IRQ affinity is unavailable in the effective IRQ path, > EHT160 UDP downlink throughput improved from 802 Mbps to 2.58 Gbps after > enabling threaded NAPI. > > Tested-on: QCC2072 hw1.0 PCI WLAN.COL.1.0.c2-00074-QCACOLSWPL_V1_TO_SILICONZ-1 > > Signed-off-by: Hangtian Zhu Reviewed-by: Baochen Qiang