diff options
Diffstat (limited to 'Documentation/PCI')
| -rw-r--r-- | Documentation/PCI/endpoint/function/binding/pci-test.rst | 26 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/function/binding/pci-test.txt | 19 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/index.rst | 2 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/pci-endpoint-cfs.rst | 2 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/pci-endpoint.rst | 2 | ||||
| -rw-r--r-- | Documentation/PCI/pci-error-recovery.rst | 10 | ||||
| -rw-r--r-- | Documentation/PCI/pci.rst | 17 |
7 files changed, 43 insertions, 35 deletions
diff --git a/Documentation/PCI/endpoint/function/binding/pci-test.rst b/Documentation/PCI/endpoint/function/binding/pci-test.rst new file mode 100644 index 000000000000..57ee866fb165 --- /dev/null +++ b/Documentation/PCI/endpoint/function/binding/pci-test.rst @@ -0,0 +1,26 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================== +PCI Test Endpoint Function +========================== + +name: Should be "pci_epf_test" to bind to the pci_epf_test driver. + +Configurable Fields: + +================ =========================================================== +vendorid should be 0x104c +deviceid should be 0xb500 for DRA74x and 0xb501 for DRA72x +revid don't care +progif_code don't care +subclass_code don't care +baseclass_code should be 0xff +cache_line_size don't care +subsys_vendor_id don't care +subsys_id don't care +interrupt_pin Should be 1 - INTA, 2 - INTB, 3 - INTC, 4 -INTD +msi_interrupts Should be 1 to 32 depending on the number of MSI interrupts + to test +msix_interrupts Should be 1 to 2048 depending on the number of MSI-X + interrupts to test +================ =========================================================== diff --git a/Documentation/PCI/endpoint/function/binding/pci-test.txt b/Documentation/PCI/endpoint/function/binding/pci-test.txt deleted file mode 100644 index cd76ba47394b..000000000000 --- a/Documentation/PCI/endpoint/function/binding/pci-test.txt +++ /dev/null @@ -1,19 +0,0 @@ -PCI TEST ENDPOINT FUNCTION - -name: Should be "pci_epf_test" to bind to the pci_epf_test driver. - -Configurable Fields: -vendorid : should be 0x104c -deviceid : should be 0xb500 for DRA74x and 0xb501 for DRA72x -revid : don't care -progif_code : don't care -subclass_code : don't care -baseclass_code : should be 0xff -cache_line_size : don't care -subsys_vendor_id : don't care -subsys_id : don't care -interrupt_pin : Should be 1 - INTA, 2 - INTB, 3 - INTC, 4 -INTD -msi_interrupts : Should be 1 to 32 depending on the number of MSI interrupts - to test -msix_interrupts : Should be 1 to 2048 depending on the number of MSI-X - interrupts to test diff --git a/Documentation/PCI/endpoint/index.rst b/Documentation/PCI/endpoint/index.rst index d114ea74b444..4ca7439fbfc9 100644 --- a/Documentation/PCI/endpoint/index.rst +++ b/Documentation/PCI/endpoint/index.rst @@ -11,3 +11,5 @@ PCI Endpoint Framework pci-endpoint-cfs pci-test-function pci-test-howto + + function/binding/pci-test diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst index b6d39cdec56e..1bbd81ed06c8 100644 --- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst +++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst @@ -24,7 +24,7 @@ Directory Structure The pci_ep configfs has two directories at its root: controllers and functions. Every EPC device present in the system will have an entry in -the *controllers* directory and and every EPF driver present in the system +the *controllers* directory and every EPF driver present in the system will have an entry in the *functions* directory. :: diff --git a/Documentation/PCI/endpoint/pci-endpoint.rst b/Documentation/PCI/endpoint/pci-endpoint.rst index 7536be445db8..4f5622a65555 100644 --- a/Documentation/PCI/endpoint/pci-endpoint.rst +++ b/Documentation/PCI/endpoint/pci-endpoint.rst @@ -214,7 +214,7 @@ pci-ep-cfs.c can be used as reference for using these APIs. * pci_epf_create() Create a new PCI EPF device by passing the name of the PCI EPF device. - This name will be used to bind the the EPF device to a EPF driver. + This name will be used to bind the EPF device to a EPF driver. * pci_epf_destroy() diff --git a/Documentation/PCI/pci-error-recovery.rst b/Documentation/PCI/pci-error-recovery.rst index 13beee23cb04..84ceebb08cac 100644 --- a/Documentation/PCI/pci-error-recovery.rst +++ b/Documentation/PCI/pci-error-recovery.rst @@ -79,7 +79,7 @@ This structure has the form:: struct pci_error_handlers { - int (*error_detected)(struct pci_dev *dev, enum pci_channel_state); + int (*error_detected)(struct pci_dev *dev, pci_channel_state_t); int (*mmio_enabled)(struct pci_dev *dev); int (*slot_reset)(struct pci_dev *dev); void (*resume)(struct pci_dev *dev); @@ -87,11 +87,11 @@ This structure has the form:: The possible channel states are:: - enum pci_channel_state { + typedef enum { pci_channel_io_normal, /* I/O channel is in normal state */ pci_channel_io_frozen, /* I/O to channel is blocked */ pci_channel_io_perm_failure, /* PCI card is dead */ - }; + } pci_channel_state_t; Possible return values are:: @@ -248,7 +248,7 @@ STEP 4: Slot Reset ------------------ In response to a return value of PCI_ERS_RESULT_NEED_RESET, the -the platform will perform a slot reset on the requesting PCI device(s). +platform will perform a slot reset on the requesting PCI device(s). The actual steps taken by a platform to perform a slot reset will be platform-dependent. Upon completion of slot reset, the platform will call the device slot_reset() callback. @@ -348,7 +348,7 @@ STEP 6: Permanent Failure ------------------------- A "permanent failure" has occurred, and the platform cannot recover the device. The platform will call error_detected() with a -pci_channel_state value of pci_channel_io_perm_failure. +pci_channel_state_t value of pci_channel_io_perm_failure. The device driver should, at this point, assume the worst. It should cancel all pending I/O, refuse all new I/O, returning -EIO to diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst index 8c016d8c9862..814b40f8360b 100644 --- a/Documentation/PCI/pci.rst +++ b/Documentation/PCI/pci.rst @@ -17,7 +17,7 @@ PCI device drivers. A more complete resource is the third edition of "Linux Device Drivers" by Jonathan Corbet, Alessandro Rubini, and Greg Kroah-Hartman. LDD3 is available for free (under Creative Commons License) from: -http://lwn.net/Kernel/LDD3/. +https://lwn.net/Kernel/LDD3/. However, keep in mind that all documents are subject to "bit rot". Refer to the source code if things are not working as described here. @@ -209,12 +209,12 @@ the PCI device by calling pci_enable_device(). This will: OS BUG: we don't check resource allocations before enabling those resources. The sequence would make more sense if we called pci_request_resources() before calling pci_enable_device(). - Currently, the device drivers can't detect the bug when when two + Currently, the device drivers can't detect the bug when two devices have been allocated the same range. This is not a common problem and unlikely to get fixed soon. This has been discussed before but not changed as of 2.6.19: - http://lkml.org/lkml/2006/3/2/194 + https://lore.kernel.org/r/20060302180025.GC28895@flint.arm.linux.org.uk/ pci_set_master() will enable DMA by setting the bus master bit @@ -265,7 +265,7 @@ Set the DMA mask size --------------------- .. note:: If anything below doesn't make sense, please refer to - Documentation/DMA-API.txt. This section is just a reminder that + :doc:`/core-api/dma-api`. This section is just a reminder that drivers need to indicate DMA capabilities of the device and is not an authoritative source for DMA interfaces. @@ -291,7 +291,7 @@ Many 64-bit "PCI" devices (before PCI-X) and some PCI-X devices are Setup shared control data ------------------------- Once the DMA masks are set, the driver can allocate "consistent" (a.k.a. shared) -memory. See Documentation/DMA-API.txt for a full description of +memory. See :doc:`/core-api/dma-api` for a full description of the DMA APIs. This section is just a reminder that it needs to be done before enabling DMA on the device. @@ -421,7 +421,7 @@ owners if there is one. Then clean up "consistent" buffers which contain the control data. -See Documentation/DMA-API.txt for details on unmapping interfaces. +See :doc:`/core-api/dma-api` for details on unmapping interfaces. Unregister from other subsystems @@ -514,9 +514,8 @@ your driver if they're helpful, or just use plain hex constants. The device IDs are arbitrary hex numbers (vendor controlled) and normally used only in a single location, the pci_device_id table. -Please DO submit new vendor/device IDs to http://pci-ids.ucw.cz/. -There are mirrors of the pci.ids file at http://pciids.sourceforge.net/ -and https://github.com/pciutils/pciids. +Please DO submit new vendor/device IDs to https://pci-ids.ucw.cz/. +There's a mirror of the pci.ids file at https://github.com/pciutils/pciids. Obsolete functions |