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Fri, 17 Jul 2020 08:50:20 -0400 Received: from mail-vs1-xe31.google.com (mail-vs1-xe31.google.com [IPv6:2607:f8b0:4864:20::e31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30B45C061755 for ; Fri, 17 Jul 2020 05:50:20 -0700 (PDT) Received: by mail-vs1-xe31.google.com with SMTP id x13so4744512vsx.13 for ; Fri, 17 Jul 2020 05:50:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ZnPJAnA3DP5OlSmqrsdGzJVINqJx7/prUrXzRyKeRSg=; b=OVUlXeBiQZbXbcKV6f451hDmrNU2ZzTkOqlqhVtLxZ5MfXpuq4uFK3ac4j9/8caIoD E8jDyk9sfqHBS997bOnYTs5sOpNzOar2Rchs6c/ZYD1pdbP3LgWf3OLe+wCojop8LaNc 4X/CdWN+wrxgMvOPS8EOqFTkflOs2GwM3/fLJlNAqFUUYj8u98IXFT2WJF/aSuvnRFAw ycrTgYGAd7o+vTJ5Jb/xsSX2J0rw4ZJrVZE2g1pszX6opNA9GaE3EGBW8fnhCQBSbRKL d8Yu4dheovXpju9GRKCdBXCyMSRPf8ndUEEhyhwBFWaEE6Of/LO641i0FrkHLy1Kll+T KYRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ZnPJAnA3DP5OlSmqrsdGzJVINqJx7/prUrXzRyKeRSg=; b=QsGJUPvwtZALWdCVTjpghvXTa3PDD9zf59nYuWpE5M7zdKab3TnYAh7jeATfIfQZPC 9OJGQ32lDShdzEExk0ckQ6/9QisAlxQFloZHuxSIOKgpddho9nyjnWGnWnvjD3evt+kt rQFhJ+aHWudnoIZyvGhph9mWNpnj2xcD49bkQ8SnU6/cJNgNViQTPVzeUCMwRsP7CTbu LCC/UyCzingXYspft11iQeYpTdWJ/bULlUnui1+aab5cnPnJ+r8QW5ZKrKPaFfdkmN+P +9xthbrvvCI52kDgTb3kXldWH1LSebhW0v8h5nAePzeyH4BMCU271y2bPJEWsvfLj/rl 5jGw== X-Gm-Message-State: AOAM5325Y79T+PvIzmxD4ymG4TF52voNB70I1gKh2SCDu7FemFcxLL0P k2nlyokDdF7WlXNEIiLNNudLOfVB2Z+LVL2GvKs= X-Google-Smtp-Source: ABdhPJwsZcGdR2t65PDxC9pIY82gf3FpXqpH6wAsXxUk+tJ+G08Y9a4mgMfvDQNchBryeqSoqyOJ3UWmJ7Kv1P1SNyQ= X-Received: by 2002:a67:7ccd:: with SMTP id x196mr7111359vsc.224.1594990219191; Fri, 17 Jul 2020 05:50:19 -0700 (PDT) MIME-Version: 1.0 References: <20200711162349.GL1014141@lunn.ch> <20200711192255.GO1551@shell.armlinux.org.uk> <20200712132554.GS1551@shell.armlinux.org.uk> <20200717092153.GK1551@shell.armlinux.org.uk> In-Reply-To: <20200717092153.GK1551@shell.armlinux.org.uk> From: Martin Rowe Date: Fri, 17 Jul 2020 12:50:07 +0000 Message-ID: Subject: Re: bug: net: dsa: mv88e6xxx: unable to tx or rx with Clearfog GT 8K (with git bisect) To: Russell King - ARM Linux admin Cc: Andrew Lunn , netdev@vger.kernel.org, davem@davemloft.net, vivien.didelot@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, 17 Jul 2020 at 09:22, Russell King - ARM Linux admin wrote: > The key file is /sys/kernel/debug/mv88e6xxx.0/regs - please send the > contents of that file. $ cat regs.broken GLOBAL GLOBAL2 SERDES 0 1 2 3 4 5 0: c800 0 ffff 9e07 9e4f 100f 100f 9e4f 170b 1: 0 803e ffff 3 3 3 3 3 201f 2: 0 0 ffff ff00 0 0 0 0 0 3: 0 0 ffff 3400 3400 3400 3400 3400 3400 4: 40a8 258 ffff 7c 43f 43c 43c 43f 373f 5: 1000 4f0 ffff 0 0 0 0 0 0 6: 0 1f0f ffff 7e 7c 7a 76 6e 5f 7: 0 703f ffff 1 0 0 0 0 0 8: 0 7800 ffff 2080 2080 2080 2080 2080 2080 9: 0 1500 ffff 1 1 1 1 1 1 a: 509 0 ffff 8000 0 0 0 0 0 b: 3000 31ff ffff 1 2 4 8 10 0 c: 207 0 ffff 0 0 0 0 0 0 d: 3333 50f ffff 0 0 0 0 0 0 e: 1 4 ffff 0 0 0 0 0 0 f: 3 f00 ffff 9100 9100 9100 9100 9100 dada 10: 0 0 ffff 0 0 0 0 0 0 11: 0 0 ffff 0 0 0 0 0 0 12: 5555 0 ffff 0 0 0 0 0 0 13: 5555 300 ffff 0 0 0 0 0 0 14: aaaa 0 ffff 0 0 0 0 0 0 15: aaaa 0 ffff 0 0 0 0 0 0 16: ffff 0 0 0 33 33 33 33 0 17: ffff 0 ffff 0 0 0 0 0 0 18: fa41 15f6 ffff 3210 3210 3210 3210 3210 3210 19: 0 0 ffff 7654 7654 7654 7654 7654 7654 1a: 3ff 0 ffff 0 0 0 0 1ea0 a100 1b: 1fc 110f ffff 8000 8000 8000 8000 8000 8000 1c: 7c0 0 ffff 0 0 0 0 0 0 1d: 1400 0 ffff 0 0 0 0 0 0 1e: 0 0 ffff f000 f000 f000 f000 f000 f000 1f: 0 0 ffff 0 2f 0 0 2e 1 $ cat regs.reverted GLOBAL GLOBAL2 SERDES 0 1 2 3 4 5 0: c800 0 ffff 9e07 9e4f 100f 100f 9e4f 1f0b 1: 0 803e ffff 3 3 3 3 3 203f 2: 0 0 ffff ff00 0 0 0 0 0 3: 0 0 ffff 3400 3400 3400 3400 3400 3400 4: 40a8 258 ffff 7c 43d 43c 43c 43f 373f 5: 1000 4f0 ffff 0 0 0 0 0 0 6: 0 1f0f ffff 7e 7c 7a 76 6e 5f 7: 0 703f ffff 1 0 0 0 0 0 8: 0 7800 ffff 2080 2080 2080 2080 2080 2080 9: 0 1500 ffff 1 1 1 1 1 1 a: 509 0 ffff 8000 0 0 0 0 0 b: 3000 31ff ffff 1 2 4 8 10 0 c: 207 0 ffff 0 0 0 0 0 0 d: 3333 58b ffff 0 0 0 0 0 0 e: 1 4 ffff 0 0 0 0 0 0 f: 3 f00 ffff 9100 9100 9100 9100 9100 dada 10: 0 0 ffff 0 0 0 0 0 0 11: 0 0 ffff 0 0 0 0 0 0 12: 5555 0 ffff 0 0 0 0 0 0 13: 5555 300 ffff 0 0 0 0 0 0 14: aaaa 0 ffff 0 0 0 0 0 0 15: aaaa 0 ffff 0 0 0 0 0 0 16: ffff 0 0 0 33 33 33 33 0 17: ffff 0 ffff 0 0 0 0 0 0 18: fa41 15f6 ffff 3210 3210 3210 3210 3210 3210 19: 0 0 ffff 7654 7654 7654 7654 7654 7654 1a: 3ff 0 ffff 0 0 0 0 1ea0 a100 1b: 1fc 110f ffff 8000 8000 8000 8000 8000 8000 1c: 7c0 0 ffff 0 0 0 0 0 0 1d: 1400 0 ffff 0 0 0 0 0 0 1e: 0 0 ffff f000 f000 f000 f000 f000 f000 1f: 0 0 ffff 0 91 0 0 7b 34 Both with 5.8.0-rc4, broken is just mainline, reverted has the one commit reverted. Martin