K 10
svn:author
V 2
np
K 8
svn:date
V 27
2019-02-01T20:42:49.091609Z
K 7
svn:log
V 739
cxgbe(4): Improved error reporting and diagnostics.

"slow" interrupt handler:
- Expand the list of INT_CAUSE registers known to the driver.
- Add decode information for many more bits but decouple it from the
  rest of intr_info so that it is entirely optional.
- Call t4_fatal_err exactly once, and from the top level PL intr handler.

t4_fatal_err:
- Use t4_shutdown_adapter from the common code to stop the adapter.
- Stop servicing slow interrupts after the first fatal one.

Driver/firmware interaction:
- CH_DUMP_MBOX: note whether the mailbox being dumped is a command or a
  reply or something else.
- Log the raw value of pcie_fw for some errors.
- Use correct log levels (debug vs. error).

Sponsored by:	Chelsio Communications

END