diff options
| author | Lukas Wunner <lukas@wunner.de> | 2023-03-11 15:40:07 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-04-18 10:36:58 -0700 |
| commit | 62e8b17ffc2ff0b0e29d5e05a18570c3e70b35ff (patch) | |
| tree | d7e45d3d3e40d4a8fa2789048ad7d505861ab898 /include/linux/pci-doe.h | |
| parent | 09a9639e56c01c7a00d6c0ca63f4c7c41abe075d (diff) | |
PCI/DOE: Provide synchronous API and use it internally
The DOE API only allows asynchronous exchanges and forces callers to
provide a completion callback. Yet all existing callers only perform
synchronous exchanges. Upcoming commits for CMA (Component Measurement
and Authentication, PCIe r6.0 sec 6.31) likewise require only
synchronous DOE exchanges.
Provide a synchronous pci_doe() API call which builds on the internal
asynchronous machinery.
Convert the internal pci_doe_discovery() to the new call.
The new API allows submission of const-declared requests, necessitating
the addition of a const qualifier in struct pci_doe_task.
Tested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Ming Li <ming4.li@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/0f444206da9615c56301fbaff459c0f45d27f122.1678543498.git.lukas@wunner.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/pci-doe.h')
| -rw-r--r-- | include/linux/pci-doe.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/pci-doe.h b/include/linux/pci-doe.h index 43765eaf2342..5dcd54f892e5 100644 --- a/include/linux/pci-doe.h +++ b/include/linux/pci-doe.h @@ -49,7 +49,7 @@ struct pci_doe_mb; */ struct pci_doe_task { struct pci_doe_protocol prot; - __le32 *request_pl; + const __le32 *request_pl; size_t request_pl_sz; __le32 *response_pl; size_t response_pl_sz; @@ -78,4 +78,8 @@ 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 |