Author: jhb
Date: Mon Jun 22 20:08:06 2009
New Revision: 194644
URL: http://svn.freebsd.org/changeset/base/194644
Log:
Enable MSI in the MSI capability registers any time that the first message
in an MSI group is enabled, not just if the address/data pair are not
initialized.
Reported by: rnoland
MFC after: 1 week
Modified:
head/sys/dev/pci/pci.c
Modified: head/sys/dev/pci/pci.c
==============================================================================
--- head/sys/dev/pci/pci.c Mon Jun 22 19:35:39 2009 (r194643)
+++ head/sys/dev/pci/pci.c Mon Jun 22 20:08:06 2009 (r194644)
@@ -2883,8 +2883,10 @@ pci_setup_intr(device_t dev, device_t ch
goto bad;
dinfo->cfg.msi.msi_addr = addr;
dinfo->cfg.msi.msi_data = data;
- pci_enable_msi(child, addr, data);
}
+ if (dinfo->cfg.msi.msi_handlers == 0)
+ pci_enable_msi(child, dinfo->cfg.msi.msi_addr,
+ dinfo->cfg.msi.msi_data);
dinfo->cfg.msi.msi_handlers++;
} else {
KASSERT(dinfo->cfg.msix.msix_alloc > 0,
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