diff options
| author | Maciej Sosnowski <maciej.sosnowski@intel.com> | 2009-09-10 15:05:58 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-10 10:00:05 -0700 |
| commit | 1a5aeeecd550ee4344cfba1791f1134739b16dc6 (patch) | |
| tree | 0b2f1f104d7dbff82130ea1d41c037a74fa6753e /include/linux/dca.h | |
| parent | 9a8de639f35ca3951b910d5e3a2f92f4cf3afc8f (diff) | |
dca: registering requesters in multiple dca domains
This patch enables DCA support on multiple-IOH/multiple-IIO architectures.
It modifies dca module by replacing single dca_providers list
with dca_domains list, each domain containing separate list of providers.
This approach lets dca driver manage multiple domains, i.e. sets of providers
and requesters mapped back to the same PCI root complex device.
The driver takes care to register each requester to a provider
from the same domain.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Diffstat (limited to 'include/linux/dca.h')
| -rw-r--r-- | include/linux/dca.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/dca.h b/include/linux/dca.h index 9c20c7e87d0..d27a7a05718 100644 --- a/include/linux/dca.h +++ b/include/linux/dca.h @@ -20,6 +20,9 @@ */ #ifndef DCA_H #define DCA_H + +#include <linux/pci.h> + /* DCA Provider API */ /* DCA Notifier Interface */ @@ -36,6 +39,12 @@ struct dca_provider { int id; }; +struct dca_domain { + struct list_head node; + struct list_head dca_providers; + struct pci_bus *pci_rc; +}; + struct dca_ops { int (*add_requester) (struct dca_provider *, struct device *); int (*remove_requester) (struct dca_provider *, struct device *); @@ -47,7 +56,7 @@ struct dca_ops { struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size); void free_dca_provider(struct dca_provider *dca); int register_dca_provider(struct dca_provider *dca, struct device *dev); -void unregister_dca_provider(struct dca_provider *dca); +void unregister_dca_provider(struct dca_provider *dca, struct device *dev); static inline void *dca_priv(struct dca_provider *dca) { |