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pci: add debug output for enabling and disabling MSI-X

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This helps debugging MSI-X issues.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2022-02-17 15:42:24 +00:00 committed by Sebastien Boeuf
parent 5bd305fa4f
commit 6f571d5c07
1 changed files with 2 additions and 0 deletions
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2
pci/src/msix.rs
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@ -162,6 +162,7 @@ impl MsixConfig {
// Update interrupt routing
if old_masked != self.masked || old_enabled != self.enabled {
if self.enabled && !self.masked {
debug!("MSI-X enabled for device 0x{:x}", self.devid);
for (idx, table_entry) in self.table_entries.iter().enumerate() {
let config = MsiIrqSourceConfig {
high_addr: table_entry.msg_addr_hi,
@ -187,6 +188,7 @@ impl MsixConfig {
}
}
} else if old_enabled || !old_masked {
debug!("MSI-X disabled for device 0x{:x}", self.devid);
if let Err(e) = self.interrupt_source_group.disable() {
error!("Failed disabling irq_fd: {:?}", e);
}