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2cf1e703f0
Adding userspace support for the MC (Management Complex) means exporting an ioctl capable device file representing the root resource container. This new functionality in the fsl-mc bus driver intends to provide userspace applications an interface to interact with the MC firmware. Commands that are composed in userspace are sent to the MC firmware through the FSL_MC_SEND_MC_COMMAND ioctl. By default the implicit MC I/O portal is used for this operation, but if the implicit one is busy, a dynamic portal is allocated and then freed upon execution. The command received through the ioctl interface is checked against a known whitelist of accepted MC commands. Commands that attempt a change in hardware configuration will need CAP_NET_ADMIN, while commands used in debugging do not need it. Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20210114170752.2927915-4-ciorneiioana@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| dpbp.c | ||
| dpcon.c | ||
| dpmcp.c | ||
| dprc-driver.c | ||
| dprc.c | ||
| fsl-mc-allocator.c | ||
| fsl-mc-bus.c | ||
| fsl-mc-msi.c | ||
| fsl-mc-private.h | ||
| fsl-mc-uapi.c | ||
| Kconfig | ||
| Makefile | ||
| mc-io.c | ||
| mc-sys.c | ||