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    SubjectRe: [PATCH v7 0/3] Modularization of DFL private feature drivers
    Hi Xu,

    On Wed, Aug 19, 2020 at 03:45:18PM +0800, Xu Yilun wrote:
    > This patchset makes it possible to develop independent driver modules
    > for DFL private features. It also helps to leverage existing kernel
    > drivers to enable some IP blocks in DFL.
    >
    > Patch #1: Release the dfl mmio regions after enumeration, so that private
    > feature drivers could request mmio region in their own drivers.
    > Patch #2: Introduce the dfl bus, then dfl devices could be supported by
    > independent dfl drivers.
    > Patch #3: An example of the dfl driver for N3000 nios private feature.
    >
    >
    > Main changes from v1:
    > - Add the new Patch #1, to improve the feature id definition.
    > - Change the dfl bus uevent format.
    > - Change the dfl device's sysfs name format.
    > - refactor dfl_dev_add()
    > - Add the Patch #4 as an example of the dfl driver.
    > - A lot of minor fixes for comments from Hao and Tom.
    >
    > Main changes from v2:
    > - Add the doc for dfl-n3000-nios driver.
    > - Minor fixes for comments from Tom.
    >
    > Main changes from v3:
    > - improve the dfl devices' uevent format, 4 bits for type & 12 bits for id
    > - change dfl_device->type to u8
    > - A dedicate field in struct dfl_feature for dfl device instance.
    > - error out if dfl_device already exist on dfl_devs_init().
    > - Move the err log in regmap implementation, and delete
    > n3000_nios_writel/readl(), they have nothing to wrapper now.
    > - Minor fixes and comments improvement.
    >
    > Main changes from v4:
    > - The patch "fpga: dfl: change data type of feature id to u16" is already
    > applied to for-next
    > - Unify the naming of some functions in dfl.c
    > - Fix the output of fec_mode sysfs inf to "no" on 10G configuration, cause
    > no FEC mode could be configured for 10G.
    > - Change the N3000 Nios driver name from "dfl-n3000-nios" to "n3000-nios",
    > and also rename some structures and functions from dfl_n3000_nios_* to
    > n3000_nios_*
    > - Minor fixes and comments improvement.
    >
    > Main changes from v5:
    > - Fix the output of fec_mode sysfs inf to "not supported" if in 10G,
    > or the firmware version major < 3.
    > - The input param of dfl_devs_add() changes to
    > struct dfl_feature_platform_data.
    > - Minor fixes and improves comments.
    >
    > Main changes from v6:
    > - Rebased to 5.9-rc1.
    > - Improves comments.
    >
    > Xu Yilun (3):
    > fpga: dfl: map feature mmio resources in their own feature drivers
    > fpga: dfl: create a dfl bus type to support DFL devices
    > fpga: dfl: add support for N3000 Nios private feature
    >
    > Documentation/ABI/testing/sysfs-bus-dfl | 15 +
    > .../ABI/testing/sysfs-bus-dfl-devices-n3000-nios | 21 +
    > Documentation/fpga/dfl-n3000-nios.rst | 80 +++
    > Documentation/fpga/index.rst | 1 +
    > drivers/fpga/Kconfig | 11 +
    > drivers/fpga/Makefile | 2 +
    > drivers/fpga/dfl-n3000-nios.c | 542 +++++++++++++++++++++
    > drivers/fpga/dfl-pci.c | 24 +-
    > drivers/fpga/dfl.c | 449 ++++++++++++++---
    > drivers/fpga/dfl.h | 93 +++-
    > 10 files changed, 1153 insertions(+), 85 deletions(-)
    > create mode 100644 Documentation/ABI/testing/sysfs-bus-dfl
    > create mode 100644 Documentation/ABI/testing/sysfs-bus-dfl-devices-n3000-nios
    > create mode 100644 Documentation/fpga/dfl-n3000-nios.rst
    > create mode 100644 drivers/fpga/dfl-n3000-nios.c
    >
    > --
    > 2.7.4
    >

    I'll get to your series this week, sorry for the delay.

    Thanks,
    Moritz

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