linux-kernel - Re: [PATCH v5 0/7] Add interrupt support to FPGA DFL drivers

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Date:   Mon, 25 May 2020 12:18:37 +0800
From:   Xu Yilun <yilun.xu@...el.com>
To:     Moritz Fischer <moritz.fischer.private@...il.com>
Cc:     linux-fpga@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        trix@...hat.com, bhu@...hat.com
Subject: Re: [PATCH v5 0/7] Add interrupt support to FPGA DFL drivers

Hi Moritz:

Thanks for your comments for first 3 patches. And do you have more comments
on last 4 patches?

I have done the changes for those fixes. I'm not sure if I should send
the v6 patchset now?

Thanks,
Yilun.

On Wed, May 06, 2020 at 06:17:27PM -0700, Moritz Fischer wrote:
> Hi Xu,
> 
> On Tue, May 5, 2020 at 10:13 PM Xu Yilun <yilun.xu@...el.com> wrote:
> >
> > Hi Moritz:
> >
> > Hao and I did several rounds of review and fix in the mailing list. Now
> > the patches are all acked by Hao.
> >
> > Could you please help review it when you have time?
> 
> I'll get to it this weekend. Sorry for the delay,
> 
> Moritz
> >
> > Thanks! :)
> >
> > On Mon, Apr 20, 2020 at 04:11:36PM +0800, Xu Yilun wrote:
> > > This patchset add interrupt support to FPGA DFL drivers.
> > >
> > > With these patches, DFL driver will parse and assign interrupt resources
> > > for enumerated feature devices and their sub features.
> > >
> > > This patchset also introduces a set of APIs for user to monitor DFL
> > > interrupts. Three sub features (DFL FME error, DFL AFU error and user
> > > interrupt) drivers now support these APIs.
> > >
> > > Patch #1: DFL framework change. Accept interrupt info input from DFL bus
> > >           driver, and add interrupt parsing and assignment for feature
> > >           sub devices.
> > > Patch #2: DFL pci driver change, add interrupt info on DFL enumeration.
> > > Patch #3: DFL framework change. Add helper functions for feature sub
> > >           device drivers to handle interrupt and notify users.
> > > Patch #4: Add interrupt support for AFU error reporting sub feature.
> > > Patch #5: Add interrupt support for FME global error reporting sub
> > >           feature.
> > > Patch #6: Add interrupt support for a new sub feature, to handle user
> > >           interrupts implemented in AFU.
> > > Patch #7: Documentation for DFL interrupt handling.
> > >
> > > Main changes from v1:
> > >  - Early validating irq table for each feature in parse_feature_irq()
> > >    in Patch #1.
> > >  - Changes IOCTL interfaces. use DFL_FPGA_FME/PORT_XXX_GET_IRQ_NUM
> > >    instead of DFL_FPGA_FME/PORT_XXX_GET_INFO, delete flag field for
> > >    DFL_FPGA_FME/PORT_XXX_SET_IRQ param
> > >
> > > Main changes from v2:
> > >  - put parse_feature_irqs() inside create_feature_instance().
> > >  - refines code for dfl_fpga_set_irq_triggers, delete local variable j.
> > >  - put_user() instead of copy_to_user() for DFL_FPGA_XXX_GET_IRQ_NUM IOCTL
> > >
> > > Main changes from v3:
> > >  - rebased to 5.7-rc1.
> > >  - fail the dfl enumeration when irq parsing error happens.
> > >  - Add 2 helper functions in dfl.c to handle generic irq ioctls in feature
> > >    drivers.
> > >
> > > Main changes from v4:
> > >  - Minor fixes for Hao's comments.
> > >
> > > Xu Yilun (7):
> > >   fpga: dfl: parse interrupt info for feature devices on enumeration
> > >   fpga: dfl: pci: add irq info for feature devices enumeration
> > >   fpga: dfl: introduce interrupt trigger setting API
> > >   fpga: dfl: afu: add interrupt support for port error reporting
> > >   fpga: dfl: fme: add interrupt support for global error reporting
> > >   fpga: dfl: afu: add AFU interrupt support
> > >   Documentation: fpga: dfl: add descriptions for interrupt related
> > >     interfaces.
> > >
> > >  Documentation/fpga/dfl.rst    |  19 +++
> > >  drivers/fpga/dfl-afu-error.c  |  17 +++
> > >  drivers/fpga/dfl-afu-main.c   |  32 +++++
> > >  drivers/fpga/dfl-fme-error.c  |  18 +++
> > >  drivers/fpga/dfl-fme-main.c   |   6 +
> > >  drivers/fpga/dfl-pci.c        |  80 +++++++++--
> > >  drivers/fpga/dfl.c            | 310 ++++++++++++++++++++++++++++++++++++++++++
> > >  drivers/fpga/dfl.h            |  57 ++++++++
> > >  include/uapi/linux/fpga-dfl.h |  82 +++++++++++
> > >  9 files changed, 612 insertions(+), 9 deletions(-)
> > >
> > > --
> > > 2.7.4