diff options
Diffstat (limited to 'Documentation/PCI')
| -rw-r--r-- | Documentation/PCI/endpoint/pci-endpoint.txt | 4 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/pci-test-function.txt | 4 | ||||
| -rw-r--r-- | Documentation/PCI/endpoint/pci-test-howto.txt | 22 |
3 files changed, 24 insertions, 6 deletions
diff --git a/Documentation/PCI/endpoint/pci-endpoint.txt b/Documentation/PCI/endpoint/pci-endpoint.txt index 9b1d66829290..e86a96b66a6a 100644 --- a/Documentation/PCI/endpoint/pci-endpoint.txt +++ b/Documentation/PCI/endpoint/pci-endpoint.txt @@ -44,7 +44,7 @@ by the PCI controller driver. * clear_bar: ops to reset the BAR * alloc_addr_space: ops to allocate in PCI controller address space * free_addr_space: ops to free the allocated address space - * raise_irq: ops to raise a legacy or MSI interrupt + * raise_irq: ops to raise a legacy, MSI or MSI-X interrupt * start: ops to start the PCI link * stop: ops to stop the PCI link @@ -96,7 +96,7 @@ by the PCI endpoint function driver. *) pci_epc_raise_irq() The PCI endpoint function driver should use pci_epc_raise_irq() to raise - Legacy Interrupt or MSI Interrupt. + Legacy Interrupt, MSI or MSI-X Interrupt. *) pci_epc_mem_alloc_addr() diff --git a/Documentation/PCI/endpoint/pci-test-function.txt b/Documentation/PCI/endpoint/pci-test-function.txt index bf4b5cf6fee6..5916f1f592bb 100644 --- a/Documentation/PCI/endpoint/pci-test-function.txt +++ b/Documentation/PCI/endpoint/pci-test-function.txt @@ -36,7 +36,7 @@ that the endpoint device must perform. Bitfield Description: Bit 0 : raise legacy IRQ Bit 1 : raise MSI IRQ - Bit 2 : raise MSI-X IRQ (reserved for future implementation) + Bit 2 : raise MSI-X IRQ Bit 3 : read command (read data from RC buffer) Bit 4 : write command (write data to RC buffer) Bit 5 : copy command (copy data from one RC buffer to another @@ -75,6 +75,7 @@ for the READ/WRITE/COPY and raise IRQ (Legacy/MSI) commands. Possible types: - Legacy : 0 - MSI : 1 + - MSI-X : 2 *) PCI_ENDPOINT_TEST_IRQ_NUMBER @@ -83,3 +84,4 @@ This register contains the triggered ID interrupt. Admissible values: - Legacy : 0 - MSI : [1 .. 32] + - MSI-X : [1 .. 2048] diff --git a/Documentation/PCI/endpoint/pci-test-howto.txt b/Documentation/PCI/endpoint/pci-test-howto.txt index 75f48c3bb191..65f1a137e35c 100644 --- a/Documentation/PCI/endpoint/pci-test-howto.txt +++ b/Documentation/PCI/endpoint/pci-test-howto.txt @@ -45,9 +45,9 @@ The PCI endpoint framework populates the directory with the following configurable fields. # ls functions/pci_epf_test/func1 - baseclass_code interrupt_pin revid subsys_vendor_id - cache_line_size msi_interrupts subclass_code vendorid - deviceid progif_code subsys_id + baseclass_code interrupt_pin progif_code subsys_id + cache_line_size msi_interrupts revid subsys_vendorid + deviceid msix_interrupts subclass_code vendorid The PCI endpoint function driver populates these entries with default values when the device is bound to the driver. The pci-epf-test driver populates @@ -67,6 +67,7 @@ device, the following commands can be used. # echo 0x104c > functions/pci_epf_test/func1/vendorid # echo 0xb500 > functions/pci_epf_test/func1/deviceid # echo 16 > functions/pci_epf_test/func1/msi_interrupts + # echo 8 > functions/pci_epf_test/func1/msix_interrupts 1.5 Binding pci-epf-test Device to EP Controller @@ -153,6 +154,21 @@ following commands. MSI30: NOT OKAY MSI31: NOT OKAY MSI32: NOT OKAY + MSIX1: OKAY + MSIX2: OKAY + MSIX3: OKAY + MSIX4: OKAY + MSIX5: OKAY + MSIX6: OKAY + MSIX7: OKAY + MSIX8: OKAY + MSIX9: NOT OKAY + MSIX10: NOT OKAY + MSIX11: NOT OKAY + MSIX12: NOT OKAY + MSIX13: NOT OKAY + [...] + MSIX2048: NOT OKAY Read Tests |