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[213.36.7.13]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-46e56f3dcacsm12050635e9.2.2025.09.29.05.19.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Sep 2025 05:19:03 -0700 (PDT) Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Mon, 29 Sep 2025 14:19:03 +0200 Message-Id: Cc: "ath12k@lists.infradead.org" , "Lorenzo Bianconi" , "Ryder Lee" Subject: Re: [DESIGN RFC] Critical Update handling in the kernel From: "Nicolas Escande" To: , "Ping-Ke Shih" , "Johannes Berg" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20250717045540.27208-1-aditya.kumar.singh@oss.qualcomm.com> <1a77ca6a35ad03f839b7c997de3977b521d88edc.camel@sipsolutions.net> In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250929_051907_339443_A50B845E X-CRM114-Status: GOOD ( 16.72 ) X-BeenThere: ath12k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "ath12k" Errors-To: ath12k-bounces+ath12k=archiver.kernel.org@lists.infradead.org On Thu Sep 4, 2025 at 4:24 PM CEST, Jeff Johnson wrote: > On 7/24/2025 1:48 AM, Ping-Ke Shih wrote: >> Johannes Berg wrote: >>>> Before we move forward with implementation, we'd like to confirm wheth= er >>>> the proposed design looks sound. Are there any concerns or potential i= ssues >>>> we should be aware of? >>>> >>>> Out of curiosity, we're also interested in understanding how other ven= dors >>>> are currently handling this feature in their downstream drivers. Is it >>>> typically offloaded to firmware, or is the logic implemented in the ke= rnel? >>>> Just want to confirm whether all this will be used only by mac80211_hw= sim >>>> or will there be any actual users? >>> >>> I think Ping-Ke previously indicated that they were planning to do >>> things host side? I'm not super familiar with the timing constraints >>> though, so I'm not sure what that might imply. >>=20 >> Yes, Realtek vendor driver handles the feature in host driver. Having no= t >> tested CSA and ML procedure mentioned in this discussion thread, we >> are also not sure how timing constraint to evaluate if we have to implem= ent >> the feature in firmware. =20 > > Ping-Ke (and Johannes), > Have you had a chance to review Aditya's August 21 follow-up? > > We'd like to move forward with our firmware-based approach (since that lo= gic > is already shipping in our OpenWrt-based systems). Perhaps Realtek can pr= opose > alternative host-based logic, and there can be a flag to select either > host-based or firmware-based Critical Update handling? > > Thanks, > /jeff Hey guys, any news on this one ? Seeing the ieee802.11 bn preliminary work = done by Johannes, reminded me that there are still some usefull parts of 802.11 = be that are not completely finished yet ... Thanks,