diff options
Diffstat (limited to 'pcilib.man')
| -rw-r--r-- | pcilib.man | 47 |
1 files changed, 47 insertions, 0 deletions
@@ -54,6 +54,26 @@ needs to be properly configured via the .B mmio-conf1-ext.addrs parameter. .TP +.B ecam +Direct hardware access via PCIe ECAM (Enhanced Configuration Access Mechanism). +Available on all PCIe-compliant hardware. Requires root privileges and access +to physical memory (on Linux systems disabled CONFIG_STRICT_DEVMEM option). On +ACPI compatible systems is ECAM mapping read from the MCFG table specified by the +.B ecam.acpimcfg +parameter. On EFI compatible systems, ACPI MCFG table can be located in physical +memory via EFI system table specified by the +.B ecam.efisystab +parameter. On FreeBSD/NetBSD systems, physical address of ACPI MCFG table can be +located by kenv or sysctl interface when the +.B ecam.bsd +parameter is not disabled. On x86 BIOS compatible systems, ACPI MCFG table can +be located in physical memory by scanning x86 BIOS memory when the +.B ecam.x86bios +parameter is not disabled. Alternatively ECAM mappings can be specified by the +.B ecam.addrs +parameter which takes precedence over ACPI MCFG table. This option is required +on systems without ACPI and also on systems without EFI or x86 BIOS. +.TP .B fbsd-device The .B /dev/pci @@ -170,6 +190,33 @@ It has same format as .B mmio-conf1.addrs parameter. .TP +.B ecam.addrs +Physical addresses of PCIe ECAM mappings. Each mapping must contains first PCI +bus number and physical address where mapping starts. And then it may contain +the length of the mapping, the last PCI bus number and PCI domain number. When +the last PCI bus number is not provided then it is calculated from the length +of the mapping or it is assumed 0xff. When length of the mapping is provided +then it is calculated from the last PCI bus number. And when PCI domain is not +provided then 0x0 is assumed. All numbers must be supplied in hexadecimal form +(leading prefix 0x is not required). Multiple mappings are separated by commas. +Format: [domain:]start_bus[-end_bus]:start_addr[+length],... +.TP +.B ecam.acpimcfg +Path to the ACPI MCFG table. Processed by the +.BR glob (3) +function, so it may contain wildcards (*). +.TP +.B ecam.efisystab +Path to the EFI system table. +.TP +.B ecam.bsd +When not set to 0 then use BSD kenv or sysctl to find ACPI MCFG table. Default +value is 1 on BSD systems. +.TP +.B ecam.x86bios +When not set to 0 then scan x86 BIOS memory for ACPI MCFG table. Default value +is 1 on x86 systems. +.TP .B win32.cfgmethod Config space access method to use with win32-cfgmgr32 on Windows systems. Value .I auto |