PCI: cadence: Add MSI-X support to Endpoint driver

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Implement ->set_msix() and ->get_msix() callback functions in order
to configure MSIX capability in the PCIe endpoint controller.

Add cdns_pcie_ep_send_msix_irq() to send MSIX interrupts to Host.
cdns_pcie_ep_send_msix_irq() gets the MSIX table address (virtual
address) from "struct cdns_pcie_epf" that gets initialized in
->set_bar() call back function.

[kishon@ti.com: Re-implement MSIX support in accordance with the
 re-designed core MSI-X interfaces]
Link: https://lore.kernel.org/r/20200722110317.4744-11-kishon@ti.com
Signed-off-by: Alan Douglas <adouglas@cadence.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

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Alan Douglas 2020-07-22 16:33:12 +05:30 • committed by Lorenzo Pieralisi

parent e3bca37d15

commit 3ef5d16f50

2 changed files with 117 additions and 1 deletions

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107

drivers/pci/controller/cadence/pcie-cadence-ep.c

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11

drivers/pci/controller/cadence/pcie-cadence.h

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