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| author |   Logan Gunthorpe <logang@deltatee.com> | 2019-05-23 16:30:51 -0600 |
|---|---|---|
| committer |   Jon Mason <jdmason@kudzu.us> | 2019-06-13 08:59:34 -0400 |
| commit | d7cc609fb679e11dc2b00cbe6c50cbd37ec4bfa2 (patch) | |
| tree | d8c7682961efed1e6b99045510c5b2cf935c64a6 /drivers/pci/switch | |
| parent | ntb_hw_switchtec: Fix setup MW with failure bug (diff) | |
| download | linux-dev-d7cc609fb679e11dc2b00cbe6c50cbd37ec4bfa2.tar.xz linux-dev-d7cc609fb679e11dc2b00cbe6c50cbd37ec4bfa2.zip | |
PCI/MSI: Support allocating virtual MSI interrupts
For NTB devices, we want to be able to trigger MSI interrupts
through a memory window. In these cases we may want to use
more interrupts than the NTB PCI device has available in its MSI-X
table.
We allow for this by creating a new 'virtual' interrupt. These
interrupts are allocated as usual but are not programmed into the
MSI-X table (as there may not be space for them).
The MSI address and data will then handled through an NTB MSI library
introduced later in this series.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/pci/switch')
0 files changed, 0 insertions, 0 deletions