mlx4 driver supports dumping the firmware PCI crspace and health
buffer during a critical firmware issue.
In case a firmware command times out, firmware getting stuck, or a non zero
value on the catastrophic buffer, a snapshot will be taken by the driver.
cr-space region will contain the firmware PCI crspace contents. The
fw-health region will contain the device firmware’s health buffer.
Snapshots for both of these regions are taken on the same event triggers.