• Scott Murray's avatar
    [PATCH] PCI Hotplug: CPCI update · 43b7d7cf
    Scott Murray authored
    [PATCH] CPCI: update
    
    I have finally done some work to update the CompactPCI hotplug driver to
    fix some of the outstanding issues in 2.6:
    - Added adapter and latch status ops so that those files will get created
      by the current PCI hotplug core.  This used to not be required, but
      seems to be now after some of the sysfs rework in the core.
    - Replaced slot list spinlock with a r/w semaphore to avoid any potential
      issues with sleeping.  This quiets all of the runtime warnings.
    - Reworked interrupt driven hot extraction handling to remove need for a
      polling operator for ENUM# status.  There are a lot of boards that only
      have an interrupt driven by ENUM#, so this lowers the bar to entry.
    - Replaced pci_visit_dev usage with better use of the PCI core functions.
      The new code is functionally equivalent to the previous code, but the
      use of pci_enable_device on insert needs to be investigated further, as
      I need to do some more testing to see if it is still necessary.
    Signed-off-by: default avatarScott Murray <scottm@somanetworks.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
    43b7d7cf
cpci_hotplug_core.c 18.4 KB