Re: grub with serial line configuration using PCI serial adapter

[Andrei Borzenkov]

On Wed, Oct 26, 2016 at 10:23 PM, Songatov Rishat <address@hidden> wrote:
> Hi
>
> I have solved this issue with PCI serial adapter
>

Congratulations!

> I was given another card (same chip and revision) and passing attribute in
> following format helped me to redirect input and output to serial console:
>
> serial --port=0x0cc00 ...
>

How did you come to this address?

> I still don't know why my first card dislikes grub or vice versa but the new
> one is working now and I'm satisfied.
>
> Thank you very much Andrei to your help.
>
> --
>
> With best regards
>
> Rishat
>
>
> On 21.10.2016 00:49, Songatov Rishat wrote:
>>
>> Hi Andrei
>>
>> I've found PCI specification and dumped its registers, so now I can
>> identify Subsystem Vendor ID/ Subsystem Device ID. Is this what you want to
>> know?
>>
>> lspci -s 01:05.0 -vb -xxx
>> 01:05.0 Serial controller: MosChip Semiconductor Technology Ltd. PCI 9835
>> Multi-I/O Controller (rev 01) (prog-if 02 [16550])
>>     Subsystem: LSI Logic / Symbios Logic 2S (16C550 UART)
>>     Flags: medium devsel, IRQ 11
>>     I/O ports at cc00
>>     I/O ports at c880
>>     I/O ports at c800
>>     I/O ports at c480
>>     I/O ports at c400
>>     I/O ports at c080
>>     Kernel driver in use: serial
>> 00: 10 97 35 98 03 01 88 02 01 02 00 07 10 40 00 00
>> 10: 01 cc 00 00 81 c8 00 00 01 c8 00 00 81 c4 00 00
>> 20: 01 c4 00 00 81 c0 00 00 00 00 00 00 00 10 02 00
>> 30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 01 00 00
>> 40: 80 80 00 00 00 00 00 c0 10 97 00 77 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
>>
>> Looks like it is 1000:0002. Do you need something else to help me?
>>
>> Thank you in advance.
>>
>>
>> On 19.10.2016 18:31, rishat wrote:
>>>
>>> On 2016-10-19 12:26, Andrei Borzenkov wrote:
>>>>
>>>> and subvendor/subroduct?
>>>
>>>
>>> Sorry Andrei, I'm not with you. Could you please specify what do you
>>> mean.
>>> I've found http://pci-ids.ucw.cz/pci.ids database and if you take a look
>>> this link you can find below part:
>>> ...
>>> 9710  MosChip Semiconductor Technology Ltd.
>>>     9250  PCI-to-PCI bridge [MCS9250]
>>>     9805  PCI 1 port parallel adapter
>>>     9815  PCI 9815 Multi-I/O Controller
>>>         1000 0020  2P0S (2 port parallel adaptor)
>>>     9820  PCI 9820 Multi-I/O Controller
>>>     9835  PCI 9835 Multi-I/O Controller
>>>         1000 0002  2S (16C550 UART)
>>>         1000 0012  1P2S
>>>     9845  PCI 9845 Multi-I/O Controller
>>> ...
>>> Or do you mean I need show you which chip is used for this device?
>>>
>>>> On Wed, Oct 19, 2016 at 12:20 PM, rishat <address@hidden> wrote:
>>>>>
>>>>> Hi
>>>>> lspci -nn
>>>>> ...
>>>>> 01:06.0 Serial controller [0700]: MosChip Semiconductor Technology Ltd.
>>>>> PCI
>>>>> 9835 Multi-I/O Controller [9710:9835] (rev 01)
>>>>> ...
>>>>>
>>>>> --
>>>>> With best regards
>>>>> Rishat
>>>>>
>>>>> On 2016-10-19 06:40, Andrei Borzenkov wrote:
>>>>>>
>>>>>>
>>>>>> 18.10.2016 23:05, Songatov Rishat пишет:
>>>>>>>
>>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> lspci -i in the grub environment shows me this:
>>>>>>>
>>>>>>> 01:06.0 9710:9835 [0700] Communication controller [PI 02]
>>>>>>> IO space 0 at 0xac00
>>>>>>> IO space 1 at 0xa880
>>>>>>> IO space 2 at 0xa800
>>>>>>> IO space 3 at 0xa480
>>>>>>> IO space 4 at 0xa400
>>>>>>> IO space 5 at 0xa080
>>>>>>>
>>>>>>> The same when OS is loaded:
>>>>>>>
>>>>>>> 01:06.0 Serial controller: MosChip Semiconductor Technology Ltd. PCI
>>>>>>> 9835 Multi-I/O Controller (rev 01) (prog-if 02 [16550])
>>>>>>>     Subsystem: LSI Logic / Symbios Logic 2S (16C550 UART)
>>>>>>
>>>>>>
>>>>>>
>>>>>> Could you please show PCI IDs (lspci -nn ...)?
>>>>>>
>>>>>>>     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-
>>>>>>>     Interrupt: pin A routed to IRQ 10
>>>>>>>     Region 0: I/O ports at ac00 [size=8]
>>>>>>>     Region 1: I/O ports at a880 [size=8]
>>>>>>>     Region 2: I/O ports at a800 [size=8]
>>>>>>>     Region 3: I/O ports at a480 [size=8]
>>>>>>>     Region 4: I/O ports at a400 [size=8]
>>>>>>>     Region 5: I/O ports at a080 [size=16]
>>>>>>>     Kernel driver in use: serial
>>>>>>>
>>>>>>> I think BIOS can't recognize this device as serial adapter. I will
>>>>>>> try
>>>>>>> to other one. Thank you to your support.
>>>>>>>
>>>>>>>
>>>>>>> On 18.10.2016 16:10, rishat wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> Yes, I saw this serial card from lspci output. But I haven't found
>>>>>>>> how
>>>>>>>> to display detailed information for certain card. Sooner I'll give
>>>>>>>> you
>>>>>>>> output from lspci -i.
>>>>>>>>
>>>>>>>> --
>>>>>>>> With best regards
>>>>>>>> Rishat
>>>>>>>>
>>>>>>>> On 2016-10-18 14:05, Andrei Borzenkov wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Oct 18, 2016 at 12:48 PM, rishat <address@hidden>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Hi Andrei
>>>>>>>>>> May I ask another question? How I can debug this behaviour? I
>>>>>>>>>> believe that
>>>>>>>>>> BIOS initializes this adapter. Need to say that "PnP OS" was
>>>>>>>>>> setted
>>>>>>>>>> to "Yes"
>>>>>>>>>> value. I've changed it to "No" and ... same silence in the
>>>>>>>>>> minicom.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Well, assuming BIOS did initialize this card it may use different
>>>>>>>>> port
>>>>>>>>> address. The one you see in setserial output is assigned by Linux
>>>>>>>>> driver. I do not know how flexible it is, but I presume they may
>>>>>>>>> change.
>>>>>>>>>
>>>>>>>>> Try lspci command in GRUB. Does it show your card at all? It also
>>>>>>>>> displays some details of current card setup.
>>>>>>>>>
>>>>>>>>> You may want to use "set pager=1" otherwise output will scroll too
>>>>>>>>> fast.
>>>>>>>>>
>>>>>>>>> If you see your card could you send screenshot of information GRUB
>>>>>>>>> shows?
>>>>>>>>>
>>>>>>>>>> Then I
>>>>>>>>>> pulled out this adapter and inserted this pci serial adapter to
>>>>>>>>>> the
>>>>>>>>>> other PC
>>>>>>>>>> computer. It has already integrated COM port, this one is working
>>>>>>>>>> fine, I
>>>>>>>>>> have tried to do serial connection via pci adapter, but again I've
>>>>>>>>>> got
>>>>>>>>>> nothing. I just want to figure out is this something I can do with
>>>>>>>>>> motherboard or my pci adapter is not compatible. If I need to
>>>>>>>>>> change
>>>>>>>>>> this
>>>>>>>>>> card do you have list of pci, pci-e card that successfully can by
>>>>>>>>>> used? Is
>>>>>>>>>> it possible I've faced to situation when two motherboards can't
>>>>>>>>>> initialize
>>>>>>>>>> this hardware?
>>>>>>>>>>
>>>>>>>>>> Thank you in advance.
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Best regards
>>>>>>>>>> Rishat
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 2016-10-18 06:47, Andrei Borzenkov wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> 17.10.2016 22:22, Songatov Rishat пишет:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Hi thank you for helping me!
>>>>>>>>>>>>
>>>>>>>>>>>> Unfortunately I haven't got serial access to the grub after
>>>>>>>>>>>> adding
>>>>>>>>>>>> this
>>>>>>>>>>>> piece of configuration:
>>>>>>>>>>>>
>>>>>>>>>>>> insmod pci
>>>>>>>>>>>> insmod serial
>>>>>>>>>>>> insmod terminal
>>>>>>>>>>>> insmod terminfo
>>>>>>>>>>>>
>>>>>>>>>>>> ###serial --speed=115200 --port=a880 --word=8 --parity=no
>>>>>>>>>>>> --stop=1
>>>>>>>>>>>> serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1
>>>>>>>>>>>>
>>>>>>>>>>>> terminal_input serial
>>>>>>>>>>>> terminal_output serial
>>>>>>>>>>>>
>>>>>>>>>>>> May be I need some sleep time after inserting pci.mod. How I can
>>>>>>>>>>>> do this?
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> You can pause with "sleep NN" but as I already wrote this is not
>>>>>>>>>>> likely
>>>>>>>>>>> to work anyway - either GRUB needs code to initialize your PCI
>>>>>>>>>>> card
>>>>>>>>>>> or
>>>>>>>>>>> BIOS should do it. Try BIOS settings, in the past it was common
>>>>>>>>>>> to
>>>>>>>>>>> have
>>>>>>>>>>> something like "PnP OS" where "no" would cause BIOS to initialize
>>>>>>>>>>> all
>>>>>>>>>>> available hardware and "yes" would leave it to operating system.
>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>>
>>>>>>>>>>>> Best regards
>>>>>>>>>>>>
>>>>>>>>>>>> Rishat
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On 17.10.2016 20:34, Andrei Borzenkov wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> 17.10.2016 19:41, rishat пишет:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 2016-10-17 19:16, Andrei Borzenkov wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> 17.10.2016 16:16, rishat пишет:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> setserial -g /dev/ttyS[0-4]
>>>>>>>>>>>>>>>> /dev/ttyS0, UART: 16550A, Port: 0xa880, IRQ: 21
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ...
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> When I tried to manually type a "serial --speed=115200
>>>>>>>>>>>>>>>> --unit=0
>>>>>>>>>>>>>>>> --word=8
>>>>>>>>>>>>>>>> --parity=no --stop=1" in the grub command line it complains
>>>>>>>>>>>>>>>> that COM1
>>>>>>>>>>>>>>>> port don't exist. I have played with unit and port
>>>>>>>>>>>>>>>> attributes
>>>>>>>>>>>>>>>> but
>>>>>>>>>>>>>>>> without any luck.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Does "serial --port=a880 ..." work? If not, what exactly
>>>>>>>>>>>>>>> happens?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Note that you may need to load at least PCI bus driver
>>>>>>>>>>>>>>> (insmod
>>>>>>>>>>>>>>> pci)
>>>>>>>>>>>>>>> for
>>>>>>>>>>>>>>> this to work.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I've tried to use it that way but it didn't find com port
>>>>>>>>>>>>>> again.
>>>>>>>>>>>>>> I'll try to do insmod pci and write to you tomorrow.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> Yes, please let us know, but on firther consideration it
>>>>>>>>>>>>> probably
>>>>>>>>>>>>> won't
>>>>>>>>>>>>> help either. Card likely needs to be initialized first, and
>>>>>>>>>>>>> this
>>>>>>>>>>>>> requires driver that knows how to do it. serial driver in GRUB
>>>>>>>>>>>>> presumes
>>>>>>>>>>>>> hardware is in working state already. Someone would need to
>>>>>>>>>>>>> implement
>>>>>>>>>>>>> it.
>>>>>>>>>>>>>
>>>>>>>>>>>>>> By the way is it possible to share documentation about some
>>>>>>>>>>>>>> useful
>>>>>>>>>>>>>> modules in the grub? I havn't found any information using
>>>>>>>>>>>>>> google.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>> Help-grub mailing list
>>>>>>>>>>>>>>> address@hidden
>>>>>>>>>>>>>>> https://lists.gnu.org/mailman/listinfo/help-grub
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>
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