diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-doe.h | 66 | ||||
| -rw-r--r-- | include/linux/pci.h | 3 |
2 files changed, 8 insertions, 61 deletions
diff --git a/include/linux/pci-doe.h b/include/linux/pci-doe.h index 43765eaf2342..1f14aed4354b 100644 --- a/include/linux/pci-doe.h +++ b/include/linux/pci-doe.h @@ -13,69 +13,13 @@ #ifndef LINUX_PCI_DOE_H #define LINUX_PCI_DOE_H -struct pci_doe_protocol { - u16 vid; - u8 type; -}; - struct pci_doe_mb; -/** - * struct pci_doe_task - represents a single query/response - * - * @prot: DOE Protocol - * @request_pl: The request payload - * @request_pl_sz: Size of the request payload (bytes) - * @response_pl: The response payload - * @response_pl_sz: Size of the response payload (bytes) - * @rv: Return value. Length of received response or error (bytes) - * @complete: Called when task is complete - * @private: Private data for the consumer - * @work: Used internally by the mailbox - * @doe_mb: Used internally by the mailbox - * - * Payloads are treated as opaque byte streams which are transmitted verbatim, - * without byte-swapping. If payloads contain little-endian register values, - * the caller is responsible for conversion with cpu_to_le32() / le32_to_cpu(). - * - * The payload sizes and rv are specified in bytes with the following - * restrictions concerning the protocol. - * - * 1) The request_pl_sz must be a multiple of double words (4 bytes) - * 2) The response_pl_sz must be >= a single double word (4 bytes) - * 3) rv is returned as bytes but it will be a multiple of double words - * - * NOTE there is no need for the caller to initialize work or doe_mb. - */ -struct pci_doe_task { - struct pci_doe_protocol prot; - __le32 *request_pl; - size_t request_pl_sz; - __le32 *response_pl; - size_t response_pl_sz; - int rv; - void (*complete)(struct pci_doe_task *task); - void *private; - - /* No need for the user to initialize these fields */ - struct work_struct work; - struct pci_doe_mb *doe_mb; -}; - -/** - * pci_doe_for_each_off - Iterate each DOE capability - * @pdev: struct pci_dev to iterate - * @off: u16 of config space offset of each mailbox capability found - */ -#define pci_doe_for_each_off(pdev, off) \ - for (off = pci_find_next_ext_capability(pdev, off, \ - PCI_EXT_CAP_ID_DOE); \ - off > 0; \ - off = pci_find_next_ext_capability(pdev, off, \ - PCI_EXT_CAP_ID_DOE)) +struct pci_doe_mb *pci_find_doe_mailbox(struct pci_dev *pdev, u16 vendor, + u8 type); -struct pci_doe_mb *pcim_doe_create_mb(struct pci_dev *pdev, u16 cap_offset); -bool pci_doe_supports_prot(struct pci_doe_mb *doe_mb, u16 vid, u8 type); -int pci_doe_submit_task(struct pci_doe_mb *doe_mb, struct pci_doe_task *task); +int pci_doe(struct pci_doe_mb *doe_mb, u16 vendor, u8 type, + const void *request, size_t request_sz, + void *response, size_t response_sz); #endif diff --git a/include/linux/pci.h b/include/linux/pci.h index 0b57e37d8e77..60b8772b5bd4 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -512,6 +512,9 @@ struct pci_dev { #ifdef CONFIG_PCI_P2PDMA struct pci_p2pdma __rcu *p2pdma; #endif +#ifdef CONFIG_PCI_DOE + struct xarray doe_mbs; /* Data Object Exchange mailboxes */ +#endif u16 acs_cap; /* ACS Capability offset */ phys_addr_t rom; /* Physical address if not from BAR */ size_t romlen; /* Length if not from BAR */ |