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Patrick JAUSSAUD(deleted)
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Dev32.ser - System freezes (shared IRQs issue?)
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Patrick JAUSSAUD(deleted)
09/02/2015 11:37 AM
post114402
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Dev32.ser - System freezes (shared IRQs issue?)
Hi all,
In an embedded system (running QNX 4.25), I replaced the old Kontron CPU by an ADLINK cPCI-3615D. This systems needs
several external multi-serial boards on the cPCI bus (3x 8 ports - Tenta SCOM-0801).
I'm now facing problems when I launch the Dev32.ser driver for the tenta boards. I noticed that it crashes if the IRQ is
already used, but maybe It's just a coincidence...
My previous CPU was allocating the IRQs on the full available range (1 to 15). With this CPU I was able to set up 24
serial ports using Dev32.ser, by blocks of 4 or 8, sometimes sharing IRQs with /Net without problem.
The new Adlink assigns only a few IRQ, and shared. I have found a slot configuration using a single tenta board
(with other I/O boards) where the tenta board have an IRQ for its own ant it works correctly. If I add an other serial
card which shares an IRQ with /Net or pg.i830, system hangs when launching Dev32.ser for this board.
Does anyone have an opinion on this issue?
Thanks a lot for your help.
Patrick
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Oleg Bolshakov
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Oleg Bolshakov
09/03/2015 4:16 AM
post114406
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Patrick,
Tell us more technical details about the issue. Which QNX 4 version do you use? What is Dev32.ser version? Also attach
output of following commands:
show_pci -vvv
sin arg
sin ver
sin irq
How do you launch Dev32.ser driver? Can you reproduce the issue without launching network or/and graphics drivers?
Respectfully,
Oleg
2 сент. 2015 г., в 18:37:01, Patrick JAUSSAUD <community-noreply@qnx.com> написал:
> Hi all,
>
> In an embedded system (running QNX 4.25), I replaced the old Kontron CPU by an ADLINK cPCI-3615D. This systems needs
several external multi-serial boards on the cPCI bus (3x 8 ports - Tenta SCOM-0801).
>
> I'm now facing problems when I launch the Dev32.ser driver for the tenta boards. I noticed that it crashes if the IRQ
is already used, but maybe It's just a coincidence...
>
> My previous CPU was allocating the IRQs on the full available range (1 to 15). With this CPU I was able to set up 24
serial ports using Dev32.ser, by blocks of 4 or 8, sometimes sharing IRQs with /Net without problem.
>
> The new Adlink assigns only a few IRQ, and shared. I have found a slot configuration using a single tenta board
(with other I/O boards) where the tenta board have an IRQ for its own ant it works correctly. If I add an other serial
card which shares an IRQ with /Net or pg.i830, system hangs when launching Dev32.ser for this board.
>
> Does anyone have an opinion on this issue?
>
> Thanks a lot for your help.
>
> Patrick
>
>
>
> _______________________________________________
>
> General
> http://community.qnx.com/sf/go/post114402
> To cancel your subscription to this discussion, please e-mail general-qnx4-unsubscribe@community.qnx.com
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Patrick JAUSSAUD(deleted)
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Patrick JAUSSAUD(deleted)
09/03/2015 10:47 AM
post114407
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Oleg,
You'll find attached the results of the commands you asked and also the commands I launch for the Dev32.ser driver.
As you told me, I tried to disable the network an graphics driver at startup.
In this situation sin irq gives something like:
RQ PID PROGRAM CS:IP DS
-1 18 //1/bin/Dev32 0005:005760 000D
-1 31 //1/bin/Dev32.ansi 0005:005DC0 000D
0 1 /boot/sys/Proc32 00F0:004D83 00F8
1 31 //1/bin/Dev32.ansi 0005:00690C 000D
6 5 /bin/Fsys.atapi 0005:00B03E 000D
13 1 /boot/sys/Proc32 00F0:004D47 00F8
Show_pci tells me that my tenta cards use IRQ 4, 5 and 6.
If I launch the Dev32.ser driver for the ones with IRQ 4 and 5, its OK.
Then, if I start the pg.i830 (IRQ4) driver, system hangs.
When I launch the Dev32.ser driver for the board with IRQ 6, it freezes too (Fsys.atapi = IRQ6).
Concerning the Ethernet driver (Net.e1000) using IRQ 5:
If I start the Dev32.ser with IRQ 5 and after, I start the Net.e1000 (with IRQ 5 too), its seems to work correctly.
If I do the reverse operation, Net.e1000 first and then Dev32.ser, system hangs...
Thanks for your help
Patrick
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Oleg Bolshakov
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Oleg Bolshakov
09/04/2015 9:30 AM
post114421
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Patrick,
How did you decide which ports and irqs specify to serial driver? Why do you use ports from 1601h:a801h device? I didn’
t find quite detailed specification for Tenta SCOM-0801, but I guess it’s incorrect to specify PCI bridge I/O ports to
Dev32.ser driver.
I guess that according to your show_pci output you should use following port,irq pairs for first board:
b800,4 b808,4 b810,4 b818,4 b880,4 b888,4 b890,4 b898,4
for second board:
c080,5 c088,5 c090,5 c098,5 c400,5 c408,5 c410,5 c418,5
for third board:
c880,6 c888,6 c890,6 c898,6 cc00,6 cc08,6 cc10,6 cc18,6
Can you test my suggestion?
Respectfully,
Oleg
3 сент. 2015 г., в 17:47:36, Patrick JAUSSAUD <community-noreply@qnx.com> написал:
> Hi Oleg,
>
> You'll find attached the results of the commands you asked and also the commands I launch for the Dev32.ser driver.
>
> As you told me, I tried to disable the network an graphics driver at startup.
> In this situation sin irq gives something like:
>
> RQ PID PROGRAM CS:IP DS
> -1 18 //1/bin/Dev32 0005:005760 000D
> -1 31 //1/bin/Dev32.ansi 0005:005DC0 000D
> 0 1 /boot/sys/Proc32 00F0:004D83 00F8
> 1 31 //1/bin/Dev32.ansi 0005:00690C 000D
> 6 5 /bin/Fsys.atapi 0005:00B03E 000D
> 13 1 /boot/sys/Proc32 00F0:004D47 00F8
>
> Show_pci tells me that my tenta cards use IRQ 4, 5 and 6.
>
> If I launch the Dev32.ser driver for the ones with IRQ 4 and 5, its OK.
> Then, if I start the pg.i830 (IRQ4) driver, system hangs.
> When I launch the Dev32.ser driver for the board with IRQ 6, it freezes too (Fsys.atapi = IRQ6).
>
> Concerning the Ethernet driver (Net.e1000) using IRQ 5:
> If I start the Dev32.ser with IRQ 5 and after, I start the Net.e1000 (with IRQ 5 too), its seems to work correctly.
> If I do the reverse operation, Net.e1000 first and then Dev32.ser, system hangs...
>
> Thanks for your help
> Patrick
>
>
>
>
> _______________________________________________
>
> General
> http://community.qnx.com/sf/go/post114407
> To cancel your subscription to this discussion, please e-mail general-qnx4-unsubscribe@community.qnx.com
> <sin_ver.txt><sin_arg.txt><sin_irqs.txt><show_pci.txt><Dev32.ser_setup.txt>
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Patrick JAUSSAUD(deleted)
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Patrick JAUSSAUD(deleted)
09/17/2015 8:54 AM
post114458
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Oleg,
To decide which ports and IRQs to specify to serial driver, I have an utility software that detects tenta boards and
generates the correct syntax for the driver (I don't have the source code of this exe).
Anyway, I tested what you propose and the result is the same. Even if I just launch the driver on the first 4 ports with
1601h:a800h, it freezes if the IRQ is used by something else.
Actually, the tenta board has two OX16PCI954 quad UARTS (see datasheet attached). The first is associated with the PCI
bridge (1601:a801h I guess).
I tested again with my old CPU and it confirms that this way of allocating the base addresses and IRQs works correctly.
I attach the results of the show-pci and sin commands on the old CPU.
Kind regards.
Patrick
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Oleg Bolshakov
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Oleg Bolshakov
09/22/2015 5:09 AM
post114487
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Patrick,
Try the attached Dev.ser driver. This version should works better in case of shared IRQs.
$ cksum Dev.ser_20150922.tar
3900819030 31744 Dev.ser_20150922.tar
Respectfully,
Oleg
17 сент. 2015 г., в 15:54:29, Patrick JAUSSAUD <community-noreply@qnx.com> написал:
> Hi Oleg,
>
> To decide which ports and IRQs to specify to serial driver, I have an utility software that detects tenta boards and
generates the correct syntax for the driver (I don't have the source code of this exe).
> Anyway, I tested what you propose and the result is the same. Even if I just launch the driver on the first 4 ports
with 1601h:a800h, it freezes if the IRQ is used by something else.
>
> Actually, the tenta board has two OX16PCI954 quad UARTS (see datasheet attached). The first is associated with the PCI
bridge (1601:a801h I guess).
>
> I tested again with my old CPU and it confirms that this way of allocating the base addresses and IRQs works correctly
. I attach the results of the show-pci and sin commands on the old CPU.
>
> Kind regards.
>
> Patrick
>
>
>
>
> _______________________________________________
>
> General
> http://community.qnx.com/sf/go/post114458
> To cancel your subscription to this discussion, please e-mail general-qnx4-unsubscribe@community.qnx.com
> <sin_ver_old_cpu.txt><ox16pci954ds.pdf><tentaSCOM-080Xman.pdf><sin_arg_old_cpu.txt><sin_irq_old_cpu.txt><
show_pci_old_cpu.txt><tenta_setup.txt>
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Patrick JAUSSAUD(deleted)
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Patrick JAUSSAUD(deleted)
09/25/2015 10:00 AM
post114525
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Oleg,
I've tried the Dev.ser you sent and it seems to work correctly now.
Thanks a lot!
Are there any differences with the "official" Dev32.ser?
Kind regards.
Patrick
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Oleg Bolshakov
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Re: Dev32.ser - System freezes (shared IRQs issue?)
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Oleg Bolshakov
09/28/2015 3:44 AM
post114533
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Re: Dev32.ser - System freezes (shared IRQs issue?)
Hi Patrick,
This is more recent version that improves work with shared interrupts + small updates.
Respectfully,
Oleg
25 сент. 2015 г., в 17:00:28, Patrick JAUSSAUD <community-noreply@qnx.com> написал:
> Hi Oleg,
>
> I've tried the Dev.ser you sent and it seems to work correctly now.
> Thanks a lot!
>
> Are there any differences with the "official" Dev32.ser?
>
> Kind regards.
> Patrick
>
>
>
> _______________________________________________
>
> General
> http://community.qnx.com/sf/go/post114525
> To cancel your subscription to this discussion, please e-mail general-qnx4-unsubscribe@community.qnx.com
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