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| author | Joel Fernandes <joelagnelf@nvidia.com> | 2026-07-18 13:15:36 -0400 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2026-07-23 10:39:57 -0700 |
| commit | 34ff636f322c6d5e4f0a52338fa63a7dff09a495 (patch) | |
| tree | 7629759c1ec7148b95bc8ab3080df20a5ecd2273 /Documentation/PCI/controller | |
| download | linux-stable-34ff636f322c6d5e4f0a52338fa63a7dff09a495.tar.gz linux-stable-34ff636f322c6d5e4f0a52338fa63a7dff09a495.zip | |
scftorture: Count single_rpc offline failures in statistics outputgrafted
scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop. As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.
Add the missing accumulation so that the printed value reflects the
actual counts.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'Documentation/PCI/controller')
| -rw-r--r-- | Documentation/PCI/controller/index.rst | 10 | ||||
| -rw-r--r-- | Documentation/PCI/controller/rcar-pcie-firmware.rst | 32 |
2 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/PCI/controller/index.rst b/Documentation/PCI/controller/index.rst new file mode 100644 index 000000000..c2ce9ccdc --- /dev/null +++ b/Documentation/PCI/controller/index.rst @@ -0,0 +1,10 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=========================================== +PCI Native Host Bridge and Endpoint Drivers +=========================================== + +.. toctree:: + :maxdepth: 2 + + rcar-pcie-firmware diff --git a/Documentation/PCI/controller/rcar-pcie-firmware.rst b/Documentation/PCI/controller/rcar-pcie-firmware.rst new file mode 100644 index 000000000..67d3bf66e --- /dev/null +++ b/Documentation/PCI/controller/rcar-pcie-firmware.rst @@ -0,0 +1,32 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================================================= +Firmware of PCIe controller for Renesas R-Car V4H +================================================= + +Renesas R-Car V4H (r8a779g0) has a PCIe controller, requiring a specific +firmware download during startup. + +However, Renesas currently cannot distribute the firmware free of charge. + +The firmware file "104_PCIe_fw_addr_data_ver1.05.txt" (note that the file name +might be different between different datasheet revisions) can be found in the +datasheet encoded as text, and as such, the file's content must be converted +back to binary form. This can be achieved using the following example script: + +.. code-block:: sh + + $ awk '/^\s*0x[0-9A-Fa-f]{4}\s+0x[0-9A-Fa-f]{4}/ { print substr($2,5,2) substr($2,3,2) }' \ + 104_PCIe_fw_addr_data_ver1.05.txt | \ + xxd -p -r > rcar_gen4_pcie.bin + +Once the text content has been converted into a binary firmware file, verify +its checksum as follows: + +.. code-block:: sh + + $ sha1sum rcar_gen4_pcie.bin + 1d0bd4b189b4eb009f5d564b1f93a79112994945 rcar_gen4_pcie.bin + +The resulting binary file called "rcar_gen4_pcie.bin" should be placed in the +"/lib/firmware" directory before the driver runs. |