Date: Wed, 9 Jun 2021 12:23:53 -0300 From: Christopher Forgeron <csforgeron@gmail.com> To: freebsd-hardware@freebsd.org Subject: Re: Devices behind PEX 8664 PCIe Switch not detected since 11.0-RELEASE Message-ID: <CAB2_NwCrjH3ORbp0E0bv6hwb27TZGtpPRkNPB4frdTd9seqAgg@mail.gmail.com> In-Reply-To: <CAB2_NwCO19XgEqN3bSHpzoO59jL3pB1PHq64OQ-LhHJaw_9FOg@mail.gmail.com> References: <CAB2_NwCO19XgEqN3bSHpzoO59jL3pB1PHq64OQ-LhHJaw_9FOg@mail.gmail.com>
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--00000000000063073c05c456dd21 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, I'm not sure if I should try posting on a different mail list? The problem is still here, it's beyond my ability to fix, and I'm willing to actively help out anyone who can point me in the right direction - Anyone with any ideas? On Tue, Jun 1, 2021 at 10:44 PM Christopher Forgeron <csforgeron@gmail.com> wrote: > Hello, > > I have not been able to upgrade past FreeBSD 10.3 as since versions 11.0= -> 13.0 devices behind my fileserver's PCIe Switch are not detected. The s= witch itself is detected, which is a PEX 8664 PCIe Switch, link below. > > I'm using a Dell M610x blade server, which has a PEX/Broadcom 8664 Switc= h in it to provide 2 PCIe slots, which I use to run SAS controllers to a dr= ive array. > > This arrangement has worked perfectly since the early days of 7/8.0, and= I've pretty much ran each version of FreeBSD since then, until 11.0 came o= ut. > > This is when I could no longer see/detect devices plugged into the PCIe = slots. Things were busy, FreeBSD 10.2 worked well, so it was just left this= way for years. > > Now I do need to upgrade software-wise to 13.0, so I've invested some ti= me tracking down what is happening, with the hopes that a knowledgeable per= son can fix this up. > > - I have confirmed with 10.3-RELEASE and a 11.0-RELEASE mini-iso boot th= at the problem starts in 11.0, and I can confirm it's still an issue in 12.= 0 and 13.0. I also boot into a 10.2-RELEASE because I happen to have that h= andy. Everything works/detects fine in 10.3 or lower. > > - These are GENERIC kernels, fresh from the iso/img I boot from, nothing= custom. > > - I currently have a 10.2 (or 10.3) boot and a 13.0 boot ready to swap b= ack and forth to try and isolate / probe info. I'll attach a few lspci dump= s after this message. > > - The card in question is a LSI 2008 Chipset, mps0 - But it's nothing do= do with that card/brand/config. I have also installed an Intel X540 Networ= k card in the PCIe slots and find the same issue - There's nothing behind t= he PEC 8664 in FreeBSD 13.0, and no problems in 10.2. I have also confirmed= that 13.0 boots up and detects the mps0 without issue when I use a differe= nt system without the PEX 8664 > > - At some point in my research I came across a similar issue where the d= eveloper mentioned that for some reason they were not scanning behind the s= witch. It was a different chipset and issue, and I don't have that thread = handy at the moment, I will post if I come across it again. > > Ref:https://www.broadcom.com/products/pcie-switches-bridges/pcie-switches= /pex8664 > > I'm rusty, but fairly knowledgeable and useful if you need me to compile = something, install patches, etc. I could give SSH access, but sending me a = patch to test may be quicker. > > lspci dumps are in my bug report here: > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256264 > > Thanks. > > --00000000000063073c05c456dd21--
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