Software Installation
rev 2.0
SFPCI-VME SERIES User’s Guide and Installation Manual
33
The PVME property
interrupt-priorities
controls which SPARC processor interrupt
level is employed by the PVME device for VME interrupts. All VME interrupts are
mapped to a single SPARC interrupt at this time.
Values that
interrupt-priorities
may assume are: 3, 4, 6, 8, and 9.
As an example, the version of pvme.conf shipped by Solflower contains the line:
interrupt-priorities=4;
This sets the SPARC interrupt to IPL 4. This is the default.
5.6.2 pci-exclude
The pci-exclude property tells the PVME device driver to exclude a certain range of PCI
addresses for mapping. This is useful when some other PCI device is occupying a PCI
memory range, but doesn’t tell the Open Boot PROM via its PCI configuration base
register.
The PCI address range to exclude is specified by a pair of numbers of the form defined
as follows:
pci-exclude=<address>,<size>[,<address><size>];
where <address> is the physical address of the start of the excluded PCI range and
<size> is the number of bytes to exclude starting from <address>.
Note that one can specify multiple ranges to exclude by concatenating the
<address>,<range> pairs.
Example 1. pci-exclude directive usage
# mark PCI address ranges as off-limits
pci-exclude=0x4000000,0x100000,0x5000000,0x100000;
5.6.3 PVME Control Register Settings
The pvme.conf file contains a number of parameter settings that control what modes or
values get set in the PVME control registers. The parameters and their permissable
values or ranges are listed below.
5.6.3.1 PCI Bus Controls
max-retry=1..0xf;
The pci-abs directive controls the PCI aligned burst size: 0=32 bytes 1=64 bytes
pci-abs= 0..1;
