This patch series adds a new driver called xData-pcie for the Synopsys
DesignWare PCIe prototype.
The driver configures and enables the Synopsys DesignWare PCIe traffic
generator IP inside of prototype Endpoint which will generate upstream
and downstream PCIe traffic. This allows to quickly test the PCIe link
throughput speed and check is the prototype solution has some limitation
or not.
Changes:
V2: Rework driver according to Greg Kroah-Hartman' feedback
- Replace module parameter by sysfs use.
- Replace bit fields structure with macros and masks use.
- Removed SET() and GET() macros by the writel() and readl().
- Removed some noisy info messages.
V3: Fixed issues detected while running on 64 bits platforms
Rebased patches on top of v5.11-rc1 version
V4: Rework driver according to Greg Kroah-Hartman' feedback
- Add the ABI doc related to the sysfs implemented on this driver
V5: Rework driver accordingly to Leon Romanovsky' feedback
- Removed "default n" on Kconfig
Rework driver accordingly to Krzysztof Wilczyński' feedback
- Added some explanatory comments for some steps
- Added some bit defines instead of magic numbers
V6: Rework driver according to Greg Kroah-Hartman' feedback
- Squashed patches #2 and #3
- Removed units (MB/s) on the sys file
- Reduced mutex scope on the functions called by sysfs
Rework driver accordingly to Krzysztof Wilczyński' feedback
- Fix typo "DesignWare"
V7: Rework driver according to Greg Kroah-Hartman' feedback
- Created a sub device (misc device) that will be associated with the PCI driver
- sysfs group is now associated with the misc drivers instead of the PCI driver
V8: Rework driver according to Greg Kroah-Hartman' feedback
- Added more detail to the version changes on the cover letter
- Squashed patches #1 and #2
- Removed struct device from the dw_xdata_pcie structure
- Replaced the pci_*() use by dev_*()
- Added free call for the misc driver name allocation
- Added reference counting
- Removed snps_edda_data structure and their usage
Rebased patches on top of v5.12-rc4 version
V9: Squashed temporary development patch #5 into the driver patch #1
V10: Reworked the write_store() and read_store() to validate the input using kstrtobool()
Removed stop_store()
Update ABI documentation accordingly
V11: Fixed the documentation based on the warnings detected by Stephen Rothwell
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: Derek Kiernan <derek.kiernan@xxxxxxxxxx>
Cc: Dragan Cvetic <dragan.cvetic@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Krzysztof Wilczyński <kw@xxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Gustavo Pimentel (4):
misc: Add Synopsys DesignWare xData IP driver
Documentation: misc-devices: Add Documentation for dw-xdata-pcie
driver
MAINTAINERS: Add Synopsys xData IP driver maintainer
docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver
Documentation/ABI/testing/sysfs-driver-xdata | 49 ++++
Documentation/misc-devices/dw-xdata-pcie.rst | 64 ++++
Documentation/misc-devices/index.rst | 1 +
MAINTAINERS | 7 +
drivers/misc/Kconfig | 10 +
drivers/misc/Makefile | 1 +
drivers/misc/dw-xdata-pcie.c | 420 +++++++++++++++++++++++++++
7 files changed, 552 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-driver-xdata
create mode 100644 Documentation/misc-devices/dw-xdata-pcie.rst
create mode 100644 drivers/misc/dw-xdata-pcie.c
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2.7.4
