| # PCIe/new PCI configuration options |
| |
| # Copyright (c) 2019 Intel Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menuconfig PCIE |
| bool "Enable new PCI/PCIe Root Complex support" |
| help |
| This option enables support for new PCI(e) drivers. |
| |
| if PCIE |
| |
| config PCIE_MSI |
| bool "Enable support for PCI(e) MSI" |
| help |
| Use Message-Signaled Interrupts where possible. With this option |
| enabled, PCI(e) devices which support MSI will be configured (at |
| runtime) to use them. This is typically required for PCIe devices |
| to generate interrupts at all. |
| |
| if PCIE_MSI |
| |
| config PCIE_MSI_MULTI_VECTOR |
| bool "Enable MSI multi-vector support" |
| help |
| MSI can support up to 32 different messages. This will enable the |
| support of such capability so each message can get a vector |
| assigned to it. This will require for the selected architecture |
| to provide the necessary logic to make it work. Disable this if |
| the vectors cannot be managed by the hardware or if none of the |
| peripheral require this. |
| |
| config PCIE_MSI_X |
| bool "Enable MSI-X support" |
| help |
| If one or more device support MSI-X, you'll need to enable this. |
| If a device exposes support for both MSI-X and MSI, MSI-X will be |
| used and MSI disabled on that device. Enable PCIE_MSI_MULTI_VECTOR |
| if you want to support multi-vector on MSI-X as well. |
| |
| endif # PCIE_MSI |
| |
| config PCIE_SHELL |
| bool "Enable PCIe/new PCI Shell" |
| default y |
| depends on SHELL |
| help |
| Enable commands for debugging PCI(e) using the built-in shell. |
| |
| endif # PCIE |
