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Mon, 21 Jun 2021 05:31:41 +0000 Received: by kubenode515.mail-prod1.omega.gq1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID cefce667923e401c874342747d5a7684; Mon, 21 Jun 2021 05:31:40 +0000 (UTC) Content-Type: text/plain; charset=us-ascii List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.100.0.2.22\)) Subject: Re: Raspberry Pi 3B and pitiful network speeds In-Reply-To: Date: Sun, 20 Jun 2021 22:31:39 -0700 Cc: "freebsd-arm@freebsd.org" Content-Transfer-Encoding: quoted-printable Message-Id: <992E8217-8BE5-4B16-AD57-1B337E7A3CE5@yahoo.com> References: <20210620144513.1f91a68f@basepc> <169baf0b-3f3c-f1dc-4a6f-b8a0ef863f51@denninger.net> <20210620154105.0c83bbcc@basepc> <20210620222922.51da1818@basepc> <3fa3f2a6-8560-f413-b2eb-5c172ce025eb@gmail.com> <6B4F2FB6-ABA1-4CFA-BE2A-6A466C30FF02@yahoo.com> To: MJ X-Mailer: Apple Mail (2.3654.100.0.2.22) X-Rspamd-Queue-Id: 4G7dSJ1VwWz3trY X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] Reply-To: marklmi@yahoo.com From: Mark Millard via freebsd-arm X-Original-From: Mark Millard X-ThisMailContainsUnwantedMimeParts: N On 2021-Jun-20, at 20:27, MJ wrote: > On 21/06/2021 1:04 pm, Mark Millard wrote: >>=20 >> On 2021-Jun-20, at 19:16, MJ wrote: >>=20 >>=20 >>> On 21/06/2021 7:29 am, Denis Ovsienko wrote: >>>> . . . >>>> As a separate note, in my setup ifconfig tells "100baseTX >>>> ", which is expected for RPI3B. In the original = message it >>>> tells "1000baseT ", which means the board is RPI3B+ or >>>=20 >>> Hi Denis. >>>=20 >>> Yes, you're correct. This is the 3B+. I apologize for = misrepresenting it. It is also the earlier version board, >>>=20 >>> Built in 2017. I think it's version 1.1 (it's in a case, I don't = feel like dismantling it). >> I do not have access to such for any testing, just a 3B. (Not >> a reasonable comparison.) In checking on that, I ran into the >> following information: >>=20 >> = https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-co= des/README.md >> only shows one revision for 3B+: >>=20 >> Code Model Revision RAM Manufacturer >> . . . >> a020d3 3B+ 1.3 1GB Sony UK >> . . . >>=20 >> Under RaspiOS the revision code shows up via: cat /proc/cpuinfo >>=20 >> It was released in 2018. (See = https://en.wikipedia.org/wiki/Raspberry_Pi .) >=20 > Here's the specifications: >=20 > = https://static.raspberrypi.org/files/product-briefs/Raspberry-Pi-Model-Bpl= us-Product-Brief.pdf >=20 > This is the exact model. It was, I believe v1.1. Later release was = v1.2 >=20 > If you do need convincing, I'm prepared to pull it apart and = photograph it... :-) I do not expect that it will show any v1.? at all on the PCB, unfortunately. It is common for boards released towards the start of year Y to have PCBs that reference year Y-1. So I do not expect that a 2017 helps identify much either. The only thing I know of that might well identify the v1.? vintage is to find the revision code via software, and see if it is a020d3 vs. something else. If it is a020d3, then the table at: = https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-co= des/README.md should apply and it would be v1.3 . Otherwise, the table is useless for the issue, having no other documented 3B+ codes. (They document that "there may be codes in use in the field that are not in this table".) It does not look like pulling it apart is likely to be worth it. If a check is made, the software check of the revision code looks more reasonable to me. But it is no big deal if you do not bother with such. =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)