[PATCH v5 00/14] Fix and improve the Rockchip endpoint driver

[Damien Le Moal]

On 10/29/24 19:35, Damien Le Moal wrote:
> On 10/17/24 10:58, Damien Le Moal wrote:
>> This patch series fix the PCI address mapping handling of the Rockchip
>> PCI endpoint driver, refactor some of its code, improves link training
>> and adds handling of the PERST# signal.
>>
>> This series is organized as follows:
>>  - Patch 1 fixes the rockchip ATU programming
>>  - Patch 2, 3 and 4 introduce small code improvments
>>  - Patch 5 implements the .align_addr() operation to make the RK3399
>>    endpoint controller driver fully functional with the new
>>    pci_epc_mem_map() function
>>  - Patch 6 uses the new align_addr operation function to fix the ATU
>>    programming for MSI IRQ data mapping
>>  - Patch 7, 8, 9 and 10 refactor the driver code to make it more
>>    readable
>>  - Patch 11 introduces the .stop() endpoint controller operation to
>>    correctly disable the endpopint controller after use
>>  - Patch 12 improves link training
>>  - Patch 13 implements handling of the #PERST signal
>>  - Patch 14 adds a DT overlay file to enable EP mode and define the
>>    PERST# GPIO (reset-gpios) property.
>>
>> These patches were tested using a Pine Rockpro64 board used as an
>> endpoint with the test endpoint function driver and a prototype nvme
>> endpoint function driver.
> 
> Ping ? If there are no issues, can we get this queued up ?

Mani,

Ping AGAIN !!!!

I do not see anything queued in pci/next. What is the blocker ?
These patches have been sitting on the list for nearly a month now, PLEASE DO
SOMETHING. Comment or apply, but please reply something.

> 
>>
>> Changes from v4:
>>  - Added patch 6
>>  - Added comments to patch 12 and 13 to clarify link training handling
>>    and PERST# GPIO use.
>>  - Added patch 14
>>
>> Changes from v3:
>>  - Addressed Mani's comments (see mailing list for details).
>>  - Removed old patch 11 (dt-binding changes) and instead use in patch 12
>>    the already defined reset_gpios property.
>>  - Added patch 6
>>  - Added review tags
>>
>> Changes from v2:
>>  - Split the patch series
>>  - Corrected patch 11 to add the missing "maxItem"
>>
>> Changes from v1:
>>  - Changed pci_epc_check_func() to pci_epc_function_is_valid() in patch
>>    1.
>>  - Removed patch "PCI: endpoint: Improve pci_epc_mem_alloc_addr()"
>>    (former patch 2 of v1)
>>  - Various typos cleanups all over. Also fixed some blank space
>>    indentation.
>>  - Added review tags
>>
>> Damien Le Moal (14):
>>   PCI: rockchip-ep: Fix address translation unit programming
>>   PCI: rockchip-ep: Use a macro to define EP controller .align feature
>>   PCI: rockchip-ep: Improve rockchip_pcie_ep_unmap_addr()
>>   PCI: rockchip-ep: Improve rockchip_pcie_ep_map_addr()
>>   PCI: rockchip-ep: Implement the pci_epc_ops::align_addr() operation
>>   PCI: rockchip-ep: Fix MSI IRQ data mapping
>>   PCI: rockchip-ep: Rename rockchip_pcie_parse_ep_dt()
>>   PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() memory allocations
>>   PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() MSI-X hiding
>>   PCI: rockchip-ep: Refactor endpoint link training enable
>>   PCI: rockship-ep: Implement the pci_epc_ops::stop_link() operation
>>   PCI: rockchip-ep: Improve link training
>>   PCI: rockchip-ep: Handle PERST# signal in endpoint mode
>>   arm64: dts: rockchip: Add rockpro64 overlay for PCIe endpoint mode
>>
>>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>>  .../rockchip/rk3399-rockpro64-pcie-ep.dtso    |  20 +
>>  drivers/pci/controller/pcie-rockchip-ep.c     | 432 ++++++++++++++----
>>  drivers/pci/controller/pcie-rockchip-host.c   |   4 +-
>>  drivers/pci/controller/pcie-rockchip.c        |  21 +-
>>  drivers/pci/controller/pcie-rockchip.h        |  24 +-
>>  6 files changed, 406 insertions(+), 96 deletions(-)
>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rockpro64-pcie-ep.dtso
>>
> 
> 


-- 
Damien Le Moal
Western Digital Research