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[80.56.215.227]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20c8bad32d0sm36228465ad.46.2024.10.12.04.51.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 12 Oct 2024 04:51:42 -0700 (PDT) Message-ID: Date: Sat, 12 Oct 2024 13:51:38 +0200 Precedence: bulk X-Mailing-List: iwd@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: IWD 1.27 with brcmfmac not working for roaming To: Martin Petzold Cc: Denis Kenzior , iwd@lists.linux.dev References: <19272307f90.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <69cc8b13-e6b4-43c5-8ba3-7877a75f0581@tavla.de> <717feddd-8756-4271-8c05-5ef46ff9e8d2@tavla.de> Content-Language: en-US From: Arend van Spriel Autocrypt: addr=arend.vanspriel@broadcom.com; keydata= xsFNBGP96SABEACfErEjSRi7TA1ttHYaUM3GuirbgqrNvQ41UJs1ag1T0TeyINqG+s6aFuO8 evRHRnyAqTjMQoo4tkfy21XQX/OsBlgvMeNzfs6jnVwlCVrhqPkX5g5GaXJnO3c4AvXHyWik SOd8nOIwt9MNfGn99tkRAmmsLaMiVLzYfg+n3kNDsqgylcSahbd+gVMq+32q8QA+L1B9tAkM UccmSXuhilER70gFMJeM9ZQwD/WPOQ2jHpd0hDVoQsTbBxZZnr2GSjSNr7r5ilGV7a3uaRUU HLWPOuGUngSktUTpjwgGYZ87Edp+BpxO62h0aKMyjzWNTkt6UVnMPOwvb70hNA2v58Pt4kHh 8ApHky6IepI6SOCcMpUEHQuoKxTMw/pzmlb4A8PY//Xu/SJF8xpkpWPVcQxNTqkjbpazOUw3 12u4EK1lzwH7wjnhM3Fs5aNBgyg+STS1VWIwoXJ7Q2Z51odh0XecsjL8EkHbp9qHdRvZQmMu Ns8lBPBkzpS7y2Q6Sp7DcRvDfQQxPrE2sKxKLZVGcRYAD90r7NANryRA/i+785MSPUNSTWK3 MGZ3Xv3fY7phISvYAklVn/tYRh88Zthf6iDuq86m5mr+qOO8s1JnCz6uxd/SSWLVOWov9Gx3 uClOYpVsUSu3utTta3XVcKVMWG/M+dWkbdt2KES2cv4P5twxyQARAQABzS9BcmVuZCB2YW4g U3ByaWVsIDxhcmVuZC52YW5zcHJpZWxAYnJvYWRjb20uY29tPsLBhwQTAQgAMRYhBLX1Z69w T4l/vfdb0pZ6NOIYA/1RBQJj/ek9AhsDBAsJCAcFFQgJCgsFFgIDAQAACgkQlno04hgD/VGw 8A//VEoGTamfCks+a12yFtT1d/GjDdf3i9agKMk3esn08JwjJ96x9OFFl2vFaQCSiefeXITR K4T/yT+n/IXntVWT3pOBfb343cAPjpaZvBMh8p32z3CuV1H0Y+753HX7gdWTEojGWaWmKkZh w3nGoRZQEeAcwcF3gMNwsM5Gemj7aInIhRLUeoKh/0yV85lNE1D7JkyNheQ+v91DWVj5/a9X 7kiL18fH1iC9kvP3lq5VE54okpGqUj5KE5pmHNFBp7HZO3EXFAd3Zxm9ol5ic9tggY0oET28 ucARi1wXLD/oCf1R9sAoWfSTnvOcJjG+kUwK7T+ZHTF8YZ4GAT3k5EwZ2Mk3+Rt62R81gzRF A6+zsewqdymbpwgyPDKcJ8YUHbqvspMQnPTmXNk+7p7fXReVPOYFtzzfBGSCByIkh1bB45jO +TM5ZbMmhsUbqA0dFT5JMHjJIaGmcw21ocgBcLsJ730fbLP/L08udgWHywPoq7Ja7lj5W0io ZDLz5uQ6CEER6wzD07vZwSl/NokljVexnOrwbR3wIhdr6B0Hc/0Bh7T8gpeM+QcK6EwJBG7A xCHLEacOuKo4jinf94YQrOEMnOmvucuQRm9CIwZrQ69Mg6rLn32pA4cK4XWQN1N3wQXnRUnb MTymLAoxE4MInhDVsZCtIDFxMVvBUgZiZZszN33OwU0EY/3pIgEQAN35Ii1Hn90ghm/qlvz/ L+wFi3PTQ90V6UKPv5Q5hq+1BtLA6aj2qmdFBO9lgO9AbzHo8Eizrgtxp41GkKTgHuYChijI kdhTVPm+Pv44N/3uHUeFhN3wQ3sTs1ZT/0HhwXt8JvjqbhvtNmoGosZvpUCTwiyM1VBF/ICT ltzFmXd5z7sEuDyZcz9Q1t1Bb2cmbhp3eIgLmVA4Lc9ZS3sK1UMgSDwaR4KYBhF0OKMC1OH8 M5jfcPHR8OLTLIM/Thw0YIUiYfj6lWwWkb82qa4IQvIEmz0LwvHkaLU1TCXbehO0pLWB9HnK r3nofx5oMfhu+cMa5C6g3fBB8Z43mDi2m/xM6p5c3q/EybOxBzhujeKN7smBTlkvAdwQfvuD jKr9lvrC2oKIjcsO+MxSGY4zRU0WKr4KD720PV2DCn54ZcOxOkOGR624d5bhDbjw1l2r+89V WLRLirBZn7VmWHSdfq5Xl9CyHT1uY6X9FRr3sWde9kA/C7Z2tqy0MevXAz+MtavOJb9XDUlI 7Bm0OPe5BTIuhtLvVZiW4ivT2LJOpkokLy2K852u32Z1QlOYjsbimf77avcrLBplvms0D7j6 OaKOq503UKfcSZo3lF70J5UtJfXy64noI4oyVNl1b+egkV2iSXifTGGzOjt50/efgm1bKNkX iCVOYt9sGTrVhiX1ABEBAAHCwXYEGAEIACAWIQS19WevcE+Jf733W9KWejTiGAP9UQUCY/3p PgIbDAAKCRCWejTiGAP9UaC/EACZvViKrMkFooyACGaukqIo/s94sGuqxj308NbZ4g5jgy/T +lYBzlurnFmIbJESFOEq0MBZorozDGk+/p8pfAh4S868i1HFeLivVIujkcL6unG1UYEnnJI9 uSwUbEqgA8vwdUPEGewYkPH6AaQoh1DdYGOleQqDq1Mo62xu+bKstYHpArzT2islvLdrBtjD MEzYThskDgDUk/aGPgtPlU9mB7IiBnQcqbS/V5f01ZicI1esy9ywnlWdZCHy36uTUfacshpz LsTCSKICXRotA0p6ZiCQloW7uRH28JFDBEbIOgAcuXGojqYx5vSM6o+03W9UjKkBGYFCqjIy Ku843p86Ky4JBs5dAXN7msLGLhAhtiVx8ymeoLGMoYoxqIoqVNaovvH9y1ZHGqS/IYXWf+jE H4MX7ucv4N8RcsoMGzXyi4UbBjxgljAhTYs+c5YOkbXfkRqXQeECOuQ4prsc6/zxGJf7MlPy NKowQLrlMBGXT4NnRNV0+yHmusXPOPIqQCKEtbWSx9s2slQxmXukPYvLnuRJqkPkvrTgjn5d eSE0Dkhni4292/Nn/TnZf5mxCNWH1p3dz/vrT6EIYk2GSJgCLoTkCcqaM6+5E4IwgYOq3UYu AAgeEbPV1QeTVAPrntrLb0t0U5vdwG7Xl40baV9OydTv7ghjYZU349w1d5mdxg== In-Reply-To: <717feddd-8756-4271-8c05-5ef46ff9e8d2@tavla.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 10/12/2024 1:06 PM, Martin Petzold wrote: > Hi Arend, > > Am 10.10.24 um 10:06 schrieb Martin Petzold: >> Hi Arend, >> >> Am 09.10.24 um 18:50 schrieb Arend Van Spriel: >>> On October 9, 2024 6:07:16 PM Denis Kenzior wrote: >>> >>>> Hi Martin, >>>> >>>> On 10/9/24 4:43 AM, Martin Petzold wrote: >>>>> Hi >>>>> >>>>> PROBLEM >>>>> >>>>> We (still) have some trouble with IWD together with brcmfmac. We >>>>> updated >>>>> firmware for the chip (Infineon CYW43353) to latest version >>>>> 11.171.0.24 and also >>>> >>>> Ugh :)  That stuff is known to be problematic.  You might want to >>>> involve Arend >>>> in this discussion. >>> >>> Is this specifically related to WPA3 or in general? The version does >>> not tell me much and I don't have access to Infineon firmware to >>> examine. I do know there are two variants floating around regarding >>> WPA3-SAE support: 1) supplicant in firmware and 2) using EXT_AUTH. >>> The latter is supported in  downstream repo on github, but it has not >>> been done in upstream linux-wireless. I did post patches for testing >>> last month. >> >> I was able to migrate to NXP kernel 6.1.36 with Debian bookworm rootfs >> containing IWD 2.3. I will try also to build IWD 2.22 later. If this >> setup / configuration makes sense I would go to roaming environments >> again. However, I have the following questions and please find the >> configuration and logs below: >> >> 1. Why does brcmfmac report "Using regulatory domain US" even though I >> have set "ccode=EU" and "regrev=116" in /lib/firmware/brcm/ >> brcmfmac4339-sdio.txt? > > I had an entry in the device tree (laird,regdomain = "US"), which seems > to be stronger than the value in the brcmfmac4339-sdio.txt. Can you > confirm? > > Now I don't get any output like "Using regulatory domain ..." any more. > How can I now be sure that EU (ETSI) is used? I really have no clue. This is not in the upstream driver so I assume you are also using some Infineon flavor of the brcmfmac driver. That device tree entry is definitely not in the bindings specification. >> 2. Is it the best approach to use firmware for Laird LWB5 / CYW43353 >> from their Git repository (laird-lwb5-etsi-firmware-11.171.0.24.tar.bz2)? > > Here I switched to newer version 12.29.0.22. I assume this firmware is > the correct one and should work with the Kernel brcmfmac driver > (6.1.36), right? Sorry. No answer to that. I have no knowledge about distribution packages from Laird. >> 3. If you say roaming can be handled by firmware (driver?) OR daemon >> (IWD), what is the best approach and how to configure it? > > This question is still open for me. In general the question, will > brcmfmac work with the laird firmware and IWD stable (really good) also > for roaming? In general it is best to let firmware take care of roaming. You can try using the module parameter 'roam_off' and see how well IWD takes care of roaming. I have never used IWD. >> 4. Is it valid to always use brcm-patchram-plus to load the firmware >> on every boot? What is brcm-patchram-plus? >> 5. I see the following error (more log below). What is going wrong? >> >> Okt 10 09:38:19 tavla kernel: brcmfmac mmc0:0001:1: Direct firmware >> load for brcm/brcmfmac4339-sdio.variscite,imx8mp-var-dart.bin failed >> with error -2 >> Okt 10 09:38:19 tavla kernel: brcmfmac mmc0:0001:1: Direct firmware >> load for brcm/brcmfmac4339-sdio.clm_blob failed with error -2 >> Okt 10 09:38:19 tavla kernel: brcmfmac: brcmf_c_process_clm_blob: no >> clm_blob available (err=-2), device may have limited channels available Nothing wrong here except that it does not find a clm_blob file. > What about the "clm_blob". Is it required in file system for 4339? (I > don't want to have limited channels) What channels are reported if you use the iw utility? Regards, Arend