task_proto -- _one_ of enum sas_proto
scatter -- pointer to scatter gather list array
num_scatter -- number of elements in scatter
- total_xfer_len -- total number of bytes expected to be transfered
+ total_xfer_len -- total number of bytes expected to be transferred
data_dir -- PCI_DMA_...
task_done -- callback when the task has finished execution
};
-When an external entity, entity other than the LLDD or the
-SAS Layer, wants to work with a struct domain_device, it
-_must_ call kobject_get() when getting a handle on the
-device and kobject_put() when it is done with the device.
-
-This does two things:
- A) implements proper kfree() for the device;
- B) increments/decrements the kref for all players:
- domain_device
- all domain_device's ... (if past an expander)
- port
- host adapter
- pci device
- and up the ladder, etc.
-
DISCOVERY
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