Lines Matching full:doorbell

54 	4) Doorbell (DB) Registers
113 	  CMD_CONFIGURE_DOORBELL (0x1): Command to configure doorbell. Before
117 	the outbound ATU such that transactions to Doorbell BAR will be routed
154 	Memory Window 1 and Doorbell registers are packed together in the
155 	same BAR. The initial portion of the region will have doorbell
178 	in order to raise doorbell. EPF NTB can use either MSI or MSI-X to
179 	ring doorbell (MSI-X support will be added later). MSI uses same
192 	will ensure there is no difference while raising the doorbell.
198 	for raising doorbell interrupt. This will be populated by EPF NTB
213 Doorbell Registers:
216   Doorbell Registers are used by the hosts to interrupt each other.
228 scratchpad, doorbell, one or more memory windows) to be modeled to achieve
242 BAR3    Doorbell
263 BAR2    Doorbell + Memory Window 1
299 Modeling Doorbell/Memory Window 1:
305  |       BAR0      |    |      |   Doorbell 1   +-----------> MSI-X ADDRESS 1 |
307  |       BAR1      |    |      |   Doorbell 2   +---------+ |                 |
309  |       BAR2      |           |   Doorbell 3   +-------+ | +-----------------+
311  |       BAR3      |    |      |   Doorbell 4   +-----+ |   +-----------------+
335 Above diagram shows how the doorbell and memory window 1 is mapped so that
336 HOST1 can raise doorbell interrupt on HOST2 and also how HOST1 can access
337 buffers exposed by HOST2 using memory window1 (MW1). Here doorbell and
339 space. Allocating and configuring BARs for doorbell and memory window1