Chris Dragan b5b2def304 misc: mods: improve logging and fix SRIOV ...

* Add new cl_* macros for printing client-specific messages.
  This adds client index to messages in code which is called from
  user space.  This makes it easier to diagnose errors when multiple
  clients (processes) open the driver.
* Use kernel print levels appropriate to messages being printed.
* Print process pid when opening the driver.
* Print information about access token being set or released.
* Print information about PCI devices being enabled or disabled.
  PCI device enablement is tied to the driver getting ownership
  of the device.  It also prevents multiple MODS instances from
  owning the same PCI device.
* Print info about device DMA mask, print device DMA mask when DMA
  mapping fails.
* Print more info about SRIOV actions.
* Disable SRIOV when the driver is being closed by the process
  which enables SRIOV.  Leaving SRIOV enabled when disabling PCI
  device is an error and leads to stale functions, unusable on
  subsequent MODS runs.
* Clean up log messages in a few places.

Change-Id: I51953e984a55c0990e90f89d8260f215c8c58498
Signed-off-by: Chris Dragan <kdragan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2279439
Tested-by: Ellis Roberts <ellisr@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

2023-04-03 13:27:52 +00:00

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