You are most likely completely mixing up PCIe port bifurcation and NIC physical and virtual functions.
So, what exactly is it, that you are trying to (or think that you are trying to) achieve?
Detailed description of your goal.
You could also have a power problem with those adapter cables. Remember, that a card can draw upto 75W from the slot. Which in this case is your cable adapter. So make sure it gets enough external power and maybe add an extra cap or two for more...
First of all, the LSI cards are (nearly all) known for having severe issues with PCIe ASPM. Once that kicks in, you'll be flooded with AER error messages. So, not a good object for comparison.
Now, concerning your Intel X540: Did not test those...
Blacklistet testweise auf dem Proxmox Host (in dem ja die Mellanox steckt) das Treibermodul für den SMBus. Soweit ich weiß war das die Lösung vor einigen Monaten, als ich drüber gestolpert bin. Die Mellanox Karten nutzen die SMBus Verbindung...
Mehr als den Hinweis "56 vs. 57" wird's von mir nicht mehr geben, denn den Hinweis zu diesem Thema gab es ganz zu Anfang schon. Viel Erfolg!
Auf dem Silbertablett dürfen es andere präsentieren, wenn sie wollen.
Jetzt bitte ein "lspci -n" unter Linux, in dem dann hoffentlich der "8086:125C" Eintrag verschwunden ist. Denn nur weil ein Ping nicht geht, heißt das erstmal nix.
So wie das, unten zitiert im Originalbeitrag steht, sagt es aus, dass Windows wunderbar läuft bevor man einen weiteren Slot bestückt.
Also entweder war das schwer missverständlich formuliert, oder hat keine Aussagekraft.
Wenn dein Linux Kernel noch mechanisch arbeitet, dann würde das einiges erklären. :cool:
Jetzt ernsthaft und zum Thema:
Falls deine NUC keine eingebaute EFI-Shell mehr besitzt besogst du dir ein passenden X64-Binary z.B. hier...
Wenn der Controller wirklich aus dem PCI-Listing verschwindet, dann hast du höchstwahrscheinlich kein Problem mit dem Linux Kernel.
Edit: BIOS- oder Hardware-Thematik klingen da schon viel realistischer.
Definiere mal "NIC vorhanden"!
Eventuell führt das Einbauen der 2. NVMe einfach nur zu einer Verschiebung der Kennung des Netzwerkcontrollers (enpXsX). Das hat dann nichts damit zu tun, dass dieser nicht mehr funktionieren würde, sondern ist...
Why did you just create a completely new thread, for the exactly same topic? Do you think, that creating just thread after thread will magically solve your problem?
Just FYI, for the quirk to apply you would have to build a test Linux Kernel for your machine, with the PCI ID of you controller in question, added to the list of devices, that the "quirk_no_bus_reset" should be applied to. To my knowledge, there...
So, directly attached to a PCH-port then, in this case.
Did you "unbind" the devices from the "ahci" driver, before loading your VM(s)?
This could also be an issue.
Edit: PCIe reset issues are not that uncommon. Maybe you need to add a "quirk"...
Please re-read what I wrote. Did I say he should add the COM-port to the Windows VM?
Th buzz-word is "serial console redirection" of the Linux Kernel messages from the Proxmox host.
In case something does not work as intended, at some point, this...
In the meantime I spent about a week, in order to get a BIOS onto that board (X99I Server), that would make it behave, the way it should for my use case.
That means enabled and working ECC and also enabled and working Serial Console Redirection...
Just out of curiosity: Are those non-working devices (each) directly attached to a CPU/chipset PCIe port, or is there a PCIe-switch involved, inbetween?
Edit: Maybe provide a PCIe tree view (lspci -t -v).
Please have the respect and use english in an international and clearly english speaking forum like this. I mean we obviously can use google translate, but why should we have to?
Besides that, according to the provided information, I guess we...
Great work!
Just one note:
As you are passing through the whole graphics device, and your chosen motherboard still features a real COM-port, it might be a good idea to enable serial console on the Proxmox system. Just in case something ever goes...
Hey folks,
I'm new here. I spent a weekend trying to get full passtrhough of my IGD and wanted to share my configs in case they can be helpful to others.
There are few threads around, but none of them quite worked straight away with my hardware...