diff options
Diffstat (limited to 'include/linux/pci-epf.h')
| -rw-r--r-- | include/linux/pci-epf.h | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 2d6f07556682..6644ff3b0702 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -15,6 +15,11 @@ struct pci_epf; +enum pci_notify_event { + CORE_INIT, + LINK_UP, +}; + enum pci_barno { BAR_0, BAR_1, @@ -55,13 +60,10 @@ struct pci_epf_header { * @bind: ops to perform when a EPC device has been bound to EPF device * @unbind: ops to perform when a binding has been lost between a EPC device * and EPF device - * @linkup: ops to perform when the EPC device has established a connection with - * a host system */ struct pci_epf_ops { int (*bind)(struct pci_epf *epf); void (*unbind)(struct pci_epf *epf); - void (*linkup)(struct pci_epf *epf); }; /** @@ -92,10 +94,12 @@ struct pci_epf_driver { /** * struct pci_epf_bar - represents the BAR of EPF device * @phys_addr: physical address that should be mapped to the BAR + * @addr: virtual address corresponding to the @phys_addr * @size: the size of the address space present in BAR */ struct pci_epf_bar { dma_addr_t phys_addr; + void *addr; size_t size; enum pci_barno barno; int flags; @@ -112,6 +116,8 @@ struct pci_epf_bar { * @epc: the EPC device to which this EPF device is bound * @driver: the EPF driver to which this EPF device is bound * @list: to add pci_epf as a list of PCI endpoint functions to pci_epc + * @nb: notifier block to notify EPF of any EPC events (like linkup) + * @lock: mutex to protect pci_epf_ops */ struct pci_epf { struct device dev; @@ -125,6 +131,22 @@ struct pci_epf { struct pci_epc *epc; struct pci_epf_driver *driver; struct list_head list; + struct notifier_block nb; + /* mutex to protect against concurrent access of pci_epf_ops */ + struct mutex lock; +}; + +/** + * struct pci_epf_msix_tbl - represents the MSIX table entry structure + * @msg_addr: Writes to this address will trigger MSIX interrupt in host + * @msg_data: Data that should be written to @msg_addr to trigger MSIX interrupt + * @vector_ctrl: Identifies if the function is prohibited from sending a message + * using this MSIX table entry + */ +struct pci_epf_msix_tbl { + u64 msg_addr; + u32 msg_data; + u32 vector_ctrl; }; #define to_pci_epf(epf_dev) container_of((epf_dev), struct pci_epf, dev) @@ -154,5 +176,4 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar, void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar); int pci_epf_bind(struct pci_epf *epf); void pci_epf_unbind(struct pci_epf *epf); -void pci_epf_linkup(struct pci_epf *epf); #endif /* __LINUX_PCI_EPF_H */ |