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  1. CIFX Driver for Linux
  2. NXDRVLINUX-28

Provide IRQ support for ISA devices (needs ISA support in UIO driver)

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: V1.1.0.0
    • Component/s: Linux Driver
    • Labels:
      None
    • Account:
      SDO Driver (SDODRIVER)

      Description

      Currently ISA cards cannot be used in IRQ mode. To be able to use IRQ a UIO driver is needed / the current driver must be extended.

      Proposal for ISA devices :

      • ISA cards are non-PNP thus, we need to pass parameters to the UIO driver. See CIF device driver which has the ISA parameters passed on the command line (Example modprobe uio_netx dpm_add=0xC0000,0xD0000 dpm_len=16,16 irq=11,9 )
      • IRQ must not be disabled during cifXToolkit IRQ handling, as ISA IRQs are edge-triggered and would be lost. (different from PCI, where UIO driver disables interrupt on cifX card, which is not possible on ISA cards).

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                • Reporter:
                  MTrensch Michael Trensch
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                  • Created:
                    Updated:
                    Resolved: