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| author | Eric W. Biederman <ebiederm@aristanetworks.com> | 2009-09-09 14:09:24 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-09-09 14:10:24 -0700 |
| commit | 28760489a3f1e136c5ae8581c0fa8f63511f2f4c (patch) | |
| tree | a3c890e9c8d9e98385691d56f5c007d280514fe5 /include/linux/pci.h | |
| parent | 0ba379ec0fb182a87b8891c5754abbcd9c035b4f (diff) | |
| download | lwn-28760489a3f1e136c5ae8581c0fa8f63511f2f4c.tar.gz lwn-28760489a3f1e136c5ae8581c0fa8f63511f2f4c.zip | |
PCI: pcie: Ensure hotplug ports have a minimum number of resources
In general a BIOS may goof or we may hotplug in a hotplug controller.
In either case the kernel needs to reserve resources for plugging
in more devices in the future instead of creating a minimal resource
assignment.
We already do this for cardbus bridges I am just adding a variant
for pcie bridges.
v2: Make testing for pcie hotplug bridges based on a flag.
So far we only set the flag for pcie but a header_quirk
could easily be added for the non-standard pci hotplug
bridges.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index d75668317705..d80ed872a3c4 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -278,6 +278,7 @@ struct pci_dev { unsigned int is_physfn:1; unsigned int is_virtfn:1; unsigned int reset_fn:1; + unsigned int is_hotplug_bridge:1; pci_dev_flags_t dev_flags; atomic_t enable_cnt; /* pci_enable_device has been called */ @@ -1245,6 +1246,9 @@ extern int pci_pci_problems; extern unsigned long pci_cardbus_io_size; extern unsigned long pci_cardbus_mem_size; +extern unsigned long pci_hotplug_io_size; +extern unsigned long pci_hotplug_mem_size; + int pcibios_add_platform_entries(struct pci_dev *dev); void pcibios_disable_device(struct pci_dev *dev); int pcibios_set_pcie_reset_state(struct pci_dev *dev, |