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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2021-02-01 22:58:01 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-02-23 23:11:31 +0300 |
| commit | 256ae475201b16fd69e00dd6c2d14035e4ea5745 (patch) | |
| tree | 80a3be4e40b155a0100d00cd5f84fc9b361519eb /include/linux | |
| parent | 87d5972e476f6c4e98a0abce713c54c6f40661b0 (diff) | |
| download | linux-256ae475201b16fd69e00dd6c2d14035e4ea5745.tar.xz | |
PCI: endpoint: Add pci_epf_ops to expose function-specific attrs
In addition to the attributes that are generic across function drivers
documented in Documentation/PCI/endpoint/pci-endpoint-cfs.rst, there could
be function-specific attributes that has to be exposed by the function
driver to be configured by the user. Add ->add_cfs() in pci_epf_ops to be
populated by the function driver if it has to expose any function-specific
attributes and pci_epf_type_add_cfs() to be invoked by pci-ep-cfs.c when
sub-directory to main function directory is created.
Link: https://lore.kernel.org/r/20210201195809.7342-10-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-epf.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 1dc66824f5a8..b241e7dd171f 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -62,10 +62,13 @@ 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 + * @add_cfs: ops to initialize function specific configfs attributes */ struct pci_epf_ops { int (*bind)(struct pci_epf *epf); void (*unbind)(struct pci_epf *epf); + struct config_group *(*add_cfs)(struct pci_epf *epf, + struct config_group *group); }; /** @@ -188,4 +191,6 @@ void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar, enum pci_epc_interface_type type); int pci_epf_bind(struct pci_epf *epf); void pci_epf_unbind(struct pci_epf *epf); +struct config_group *pci_epf_type_add_cfs(struct pci_epf *epf, + struct config_group *group); #endif /* __LINUX_PCI_EPF_H */ |