On 10/16/24 2:32 PM, Anand Moon wrote: > Hi Damien, > > On Fri, 11 Oct 2024 at 17:55, Damien Le Moal <dlemoal@xxxxxxxxxx> wrote: >> >> This patch series fix the PCI address mapping handling of the Rockchip >> 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 .get_mem_map() operation to make the RK3399 >> endpoint controller driver fully functional with the new >> pci_epc_mem_map() function >> - Patch 6, 7, 8 and 9 refactor the driver code to make it more readable >> - Patch 10 introduces the .stop() endpoint controller operation to >> correctly disable the endpopint controller after use >> - Patch 11 improves link training >> - Patch 12 implements handling of the #PERST signal >> >> This patch series depends on the PCI endpoint core patches from the >> V5 series "Improve PCI memory mapping API". The 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. > > Can we test this feature on Radxa Rock PI 4b hardware with an external > nvme card? This patch series is to fix the PCI controller operation in endpoint (EP) mode. If you only want to use an NVMe device connected to the board M.2 M-Key slot, these patches are not needed. If that board PCI controller does not work as a PCI host (RC mode), then these patches will not help. -- Damien Le Moal Western Digital Research
