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Message-ID: <20250116161227.gk2psmbzpexswgrm@thinkpad> Date: Thu, 16 Jan 2025 21:42:27 +0530 From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org> To: Niklas Cassel <cassel@...nel.org> Cc: kw@...ux.com, gregkh@...uxfoundation.org, arnd@...db.de, lpieralisi@...nel.org, shuah@...nel.org, kishon@...nel.org, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, bhelgaas@...gle.com, linux-arm-msm@...r.kernel.org, robh@...nel.org, linux-kselftest@...r.kernel.org Subject: Re: [PATCH v5 0/4] Migrate PCI Endpoint Subsystem tests to Kselftest On Thu, Jan 16, 2025 at 04:36:07PM +0100, Niklas Cassel wrote: > On Thu, Jan 16, 2025 at 07:21:02PM +0530, Manivannan Sadhasivam wrote: > > Hi, > > > > This series carries forward the effort to add Kselftest for PCI Endpoint > > Subsystem started by Aman Gupta [1] a while ago. I reworked the initial version > > based on another patch that fixes the return values of IOCTLs in > > pci_endpoint_test driver and did many cleanups. Since the resulting work > > modified the initial version substantially, I took over the authorship. > > > > This series also incorporates the review comment by Shuah Khan [2] to move the > > existing tests from 'tools/pci' to 'tools/testing/kselftest/pci_endpoint' before > > migrating to Kselftest framework. I made sure that the tests are executable in > > each commit and updated documentation accordingly. > > > > - Mani > > > > [1] https://lore.kernel.org/linux-pci/20221007053934.5188-1-aman1.gupta@samsung.com > > [2] https://lore.kernel.org/linux-pci/b2a5db97-dc59-33ab-71cd-f591e0b1b34d@linuxfoundation.org > > > > Changes in v5: > > > > * Incorporated comments from Niklas > > * Added a patch to fix the DMA MEMCPY check in pci-epf-test driver > > * Collected tags > > * Rebased on top of pci/next 0333f56dbbf7ef6bb46d2906766c3e1b2a04a94d > > > > Changes in v4: > > > > * Dropped the BAR fix patches and submitted them separately: > > https://lore.kernel.org/linux-pci/20241231130224.38206-1-manivannan.sadhasivam@linaro.org/ > > * Rebased on top of pci/next 9e1b45d7a5bc0ad20f6b5267992da422884b916e > > > > Changes in v3: > > > > * Collected tags. > > * Added a note about failing testcase 10 and command to skip it in > > documentation. > > * Removed Aman Gupta and Padmanabhan Rajanbabu from CC as their addresses are > > bouncing. > > > > Changes in v2: > > > > * Added a patch that fixes return values of IOCTL in pci_endpoint_test driver > > * Moved the existing tests to new location before migrating > > * Added a fix for BARs on Qcom devices > > * Updated documentation and also added fixture variants for memcpy & DMA modes > > > > > > Manivannan Sadhasivam (4): > > PCI: endpoint: pci-epf-test: Fix the check for DMA MEMCPY test > > misc: pci_endpoint_test: Fix the return value of IOCTL > > selftests: Move PCI Endpoint tests from tools/pci to Kselftests > > selftests: pci_endpoint: Migrate to Kselftest framework > > > > Documentation/PCI/endpoint/pci-test-howto.rst | 170 +++++------ > > MAINTAINERS | 2 +- > > drivers/misc/pci_endpoint_test.c | 255 +++++++++-------- > > drivers/pci/endpoint/functions/pci-epf-test.c | 4 +- > > tools/pci/Build | 1 - > > tools/pci/Makefile | 58 ---- > > tools/pci/pcitest.c | 264 ------------------ > > tools/pci/pcitest.sh | 73 ----- > > tools/testing/selftests/Makefile | 1 + > > .../testing/selftests/pci_endpoint/.gitignore | 2 + > > tools/testing/selftests/pci_endpoint/Makefile | 7 + > > tools/testing/selftests/pci_endpoint/config | 4 + > > .../pci_endpoint/pci_endpoint_test.c | 221 +++++++++++++++ > > 13 files changed, 435 insertions(+), 627 deletions(-) > > delete mode 100644 tools/pci/Build > > delete mode 100644 tools/pci/Makefile > > delete mode 100644 tools/pci/pcitest.c > > delete mode 100644 tools/pci/pcitest.sh > > create mode 100644 tools/testing/selftests/pci_endpoint/.gitignore > > create mode 100644 tools/testing/selftests/pci_endpoint/Makefile > > create mode 100644 tools/testing/selftests/pci_endpoint/config > > create mode 100644 tools/testing/selftests/pci_endpoint/pci_endpoint_test.c > > > > -- > > 2.25.1 > > > > I ran the test using simply: > > $ ./pci_endpoint_test > > and got: > > # RUN pci_ep_basic.MSIX_TEST ... > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X33 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X34 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X35 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X36 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X37 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X38 > # pci_endpoint_test.c:129:MSIX_TEST:Expected 0 (0) == ret (-110) > # pci_endpoint_test.c:129:MSIX_TEST:Test failed for MSI-X39 > > > I think that you should also do: > > diff --git a/Documentation/PCI/endpoint/pci-test-howto.rst b/Documentation/PCI/endpoint/pci-test-howto.rst > index 7d0dbad61456..7d5049c884dd 100644 > --- a/Documentation/PCI/endpoint/pci-test-howto.rst > +++ b/Documentation/PCI/endpoint/pci-test-howto.rst > @@ -81,8 +81,8 @@ 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 > + # echo 32 > functions/pci_epf_test/func1/msi_interrupts > + # echo 2048 > functions/pci_epf_test/func1/msix_interrupts > > > Such that the documentation suggests values that will actually make the > pci_endpoint_test pass without any special parameters set. > Agree and this is what I am doing locally, but that change is not really related to this series. So I'll submit it separately. > > Other than that small nit, for the series: > Tested-by: Niklas Cassel <cassel@...nel.org> Thanks a lot! - Mani -- மணிவண்ணன் சதாசிவம்
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