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52 Commits

Author SHA1 Message Date
Shannon Nelson
6461b446f2 ionic: Add interrupts and doorbells 
The ionic interrupt model is based on interrupt control blocks
accessed through the PCI BAR.  Doorbell registers are used by
the driver to signal to the NIC that requests are waiting on
the message queues.  Interrupts are used by the NIC to signal
to the driver that answers are waiting on the completion queues.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-09-05 09:24:43 +02:00
Shannon Nelson
1a58e19646 ionic: Add basic lif support 
The LIF is the Logical Interface, which represents the external
connections.  The NIC can multiplex many LIFs to a single port,
but in most setups, LIF0 is the primary control for the port.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-09-05 09:24:43 +02:00