Date: Sat, 5 Sep 2020 16:40:53 +0200 From: Klaus Cucinauomo <maciphone2@googlemail.com> To: Robert Crowston <crowston@protonmail.com>, myfreeweb <greg@unrelenting.technology>, Hans Petter Selasky <hps@selasky.org>, Mark Millard <marklmi@yahoo.com>, freebsd-arm@freebsd.org Subject: Re: onboard wireless on rpi4 Message-ID: <3A935200-8545-4A86-80D5-3E0DEA156F56@googlemail.com> In-Reply-To: <sinTekBDB_YOboAoJU0Uld7IaGBlIJ68dPgxuO3kcUuZpTH9KxyTquRgPxU7-0qlvofrr_8HzdCbNL-nRNaT6-OeIyIuLUUvYSGEwEzRVbc=@protonmail.com> References: <20200904134619.GB80905@bastion.zyxst.net> <69934262-D9D3-4986-849D-9E8221D1E387@kronometrix.org> <20200904142255.GC80905@bastion.zyxst.net> <CACNAnaHRn5VGM8G6_kxj7S%2B0LQOSG3CK9=umxj74Qc5v%2BNOLeA@mail.gmail.com> <BE2FA7D2-1266-496E-B808-55204B1AB21A@yahoo.com> <5AF83D16-2432-4EA9-BC2F-373DA8BC3360@googlemail.com> <4306A90D-97B9-4DE9-A05A-A91B6F4A587F@yahoo.com> <sinTekBDB_YOboAoJU0Uld7IaGBlIJ68dPgxuO3kcUuZpTH9KxyTquRgPxU7-0qlvofrr_8HzdCbNL-nRNaT6-OeIyIuLUUvYSGEwEzRVbc=@protonmail.com>
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> Did someone tell me this is *not* a problem at all on NetBSD/OpenBSD? while I have to update my knowledge of what happened the last weeks @ fbsd/netbsd/openbsd src(I didn’t work on it for some weeks)… For OpenBSD that was probably me, for NetBSD must have been Mark... both NetBSD and OpenBSD do NOT have an exclusive pcie-driver for the DeviceTree mode like Fbsd has , thanks to you. You remember the discussion with HPS and myfreeweb... : https://github.com/pftf/RPi4/issues?page=2&q=is%3Aissue+is%3Aclosed so for PCIe/fdt it’s an exclusive thing for you (and in terms of inheritance HPS, as far as I remember) > I can submit the patch I have but it’s not a 100% fix. Of course, please submit if you have something newer than already exists in Phabricator : I’m sure that Mark(Millard) is already sharpening his knife to give you test-feedback from his large-file tests;-) And yes, your last dma-fix significantly reduced the problem of unexpected controller resets, but according to Mark not the large file-copy-handling(I didn’t test that issues). thank you, kls > Am 05.09.2020 um 10:59 schrieb Robert Crowston <crowston@protonmail.com>: > > Regrettably the DMA problem is not fixed. After fixing the bus tag to correctly represent the DMA limit of the device, it reduced the problem incidence a lot but sometimes it still happens when the controller is under load. I think to do with the inbound/outbound memory view on the controller, i.e. maybe there is crosstalk between inbound and outbound DMA? I can submit the patch I have but it’s not a 100% fix. > > Did someone tell me this is *not* a problem at all on NetBSD/OpenBSD? > > — RHC. >help
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