Merge tag 'sched_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-microblaze.git] / Documentation / PCI / endpoint / pci-endpoint-cfs.rst

diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
index db609b9..fb73345 100644 (file)
--- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
+++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst
@@ -43,6 +43,7 @@ entries corresponding to EPF driver will be created by the EPF core.
                .. <EPF Driver1>/
                        ... <EPF Device 11>/
                        ... <EPF Device 21>/
                .. <EPF Driver1>/
                        ... <EPF Device 11>/
                        ... <EPF Device 21>/

+                       ... <EPF Device 31>/

                .. <EPF Driver2>/
                        ... <EPF Device 12>/
                        ... <EPF Device 22>/
                .. <EPF Driver2>/
                        ... <EPF Device 12>/
                        ... <EPF Device 22>/


@@ -68,6 +69,7 @@ created)
                                ... subsys_vendor_id
                                ... subsys_id
                                ... interrupt_pin
                                ... subsys_vendor_id
                                ... subsys_id
                                ... interrupt_pin

+                               ... <Symlink EPF Device 31>/

                                 ... primary/
                                        ... <Symlink EPC Device1>/
                                 ... secondary/
                                 ... primary/
                                        ... <Symlink EPC Device1>/
                                 ... secondary/


@@ -79,6 +81,13 @@ interface should be added in 'primary' directory and symlink of endpoint
 controller connected to secondary interface should be added in 'secondary'
 directory.
 
 controller connected to secondary interface should be added in 'secondary'
 directory.
 

+The <EPF Device> directory can have a list of symbolic links
+(<Symlink EPF Device 31>) to other <EPF Device>. These symbolic links should
+be created by the user to represent the virtual functions that are bound to
+the physical function. In the above directory structure <EPF Device 11> is a
+physical function and <EPF Device 31> is a virtual function. An EPF device once
+it's linked to another EPF device, cannot be linked to a EPC device.
+

 EPC Device
 ==========
 
 EPC Device
 ==========
 


@@ -98,7 +107,8 @@ entries corresponding to EPC device will be created by the EPC core.
 
 The <EPC Device> directory will have a list of symbolic links to
 <EPF Device>. These symbolic links should be created by the user to
 
 The <EPC Device> directory will have a list of symbolic links to
 <EPF Device>. These symbolic links should be created by the user to

-represent the functions present in the endpoint device.
+represent the functions present in the endpoint device. Only <EPF Device>
+that represents a physical function can be linked to a EPC device.

 
 The <EPC Device> directory will also have a *start* field. Once
 "1" is written to this field, the endpoint device will be ready to
 
 The <EPC Device> directory will also have a *start* field. Once
 "1" is written to this field, the endpoint device will be ready to