On Tuesday 02 November 2021 16:13:34 Pali Rohár wrote: > On Tuesday 02 November 2021 16:02:01 Thomas Bogendoerfer wrote: > > On Tue, Nov 02, 2021 at 11:00:34AM +0100, Pali Rohár wrote: > > > > > But I do not have this hardware to verify it. > > > > > > > > I still have a few Cobalt systems here. > > > > > > Perfect! It would help if you could provide 'lspci -nn -vv' output from > > > that system. In case you have very old version of lspci on that system > > > you could try to run it with '-xxxx' (or '-xxx') which prints hexdump > > > and I can parse it with local lspci. Thomas, one more question, do you have also GT-64115 system which has PCI device id 0x4611? Based on Maciej quote, GT-64115 probably also reports itself as "Memory controller" instead of "Host Bridge". So lspci output from GT-64115 could be also interesting. > > not sure, if you still needed: > > > > root@raq2:~# lspci -nn -vv > > 00:00.0 Host bridge [0600]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) > > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- > > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+ INTx- > > Latency: 64, Cache Line Size: 32 bytes > > Interrupt: pin A routed to IRQ 0 > > Region 1: Memory at 08000000 (32-bit, non-prefetchable) [size=128M] > > Region 2: Memory at 1c000000 (32-bit, non-prefetchable) [size=32M] > > Region 3: Memory at 1f000000 (32-bit, non-prefetchable) [size=16M] > > Region 4: Memory at 14000000 (32-bit, non-prefetchable) [size=4K] > > Region 5: I/O ports at 4000000 [disabled] [size=4K] > > > > > > root@raq2:~# lspci -xxxx > > 00:00.0 Host bridge: Marvell Technology Group Ltd. Device 4146 (rev 11) > > 00: ab 11 46 41 06 00 80 a2 11 00 80 05 08 40 00 00 > > ^^ ^^ ^^ > Here is class code > > So it confirms that PCI Class code is 0580 which is Memory Controller. > And not Host Bridge as it should be. > > If I put this hexdump into dump.txt and run 'lspci -F dump.txt -nn' then I see: > 00:00.0 Memory controller [0580]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) > > In your output above is "Host bridge" which means that quirk was applied: > 00:00.0 Host bridge [0600]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) > > (I guess in 'lspci -nn -vv -b' should be Memory controller as lspci with > '-b' should not see that quirk change) > > > 10: 00 00 00 00 00 00 00 08 00 00 00 1c 00 00 00 1f > > 20: 00 00 00 14 01 00 00 14 00 00 00 00 00 00 00 00 > > 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 > > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > > > Thomas. > > > > -- > > Crap can work. Given enough thrust pigs will fly, but it's not necessarily a > > good idea. [ RFC1925, 2.3 ]
