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Add method to enable/disable function masking for MSI-X #29

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merged 2 commits into from
Jun 14, 2024
Merged

Add method to enable/disable function masking for MSI-X #29

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05a544e
Add method to enable/disable function masking for MSI-X
bjorn3 Jun 9, 2024
65e0818
Add methods to get the current MSI-X enable and function mask status
bjorn3 Jun 9, 2024
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22 changes: 22 additions & 0 deletions src/capability/msix.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,28 @@ impl MsixCapability {
}
}

pub fn enabled(&self, access: impl ConfigRegionAccess) -> bool {
let control = unsafe { access.read(self.address.address, self.address.offset) };
control.get_bit(31)
}

/// Enable/disable masking of all interrupts for this PCI function.
///
/// Individual interrupt sources can be masked using mask field of the corresponding entry in
/// the MSI-X table.
pub fn set_function_mask(&mut self, mask: bool, access: impl ConfigRegionAccess) {
let mut control = unsafe { access.read(self.address.address, self.address.offset) };
control.set_bit(30, mask);
unsafe {
access.write(self.address.address, self.address.offset, control);
}
}

pub fn function_mask(&self, access: impl ConfigRegionAccess) -> bool {
let control = unsafe { access.read(self.address.address, self.address.offset) };
control.get_bit(30)
}

/// The index of the BAR that contains the MSI-X table.
pub fn table_bar(&self) -> u8 {
self.table.get_bits(0..3) as u8
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