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Groups > linux.kernel > #1589542
| From | Bjorn Helgaas <helgaas@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver |
| Date | 2017-02-28 16:10 +0100 |
| Message-ID | <tfRzA-69T-33@gated-at.bofh.it> (permalink) |
| References | <tf0Yi-34n-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi Logan,
On Sat, Feb 25, 2017 at 11:53:13PM -0700, Logan Gunthorpe wrote:
> ...
> This is a continuation of the RFC we posted lasted month [1] which
> proposes a management driver for Microsemi's Switchtec line of PCI
> switches. This hardware is still looking to be used in the Open
> Compute Platform
>
> To make this entirely clear: the Switchtec products are compliant
> with the PCI specifications and are supported today with the standard
> in-kernel driver. However, these devices also expose a management endpoint
> on a separate PCI function address which can be used to perform some
> advanced operations. This is a driver for that function. See the patch
> for more information.
>
> Since the RFC, we've made the changes requested by Greg Kroah-Hartman
> and Keith Busch, and we've also fleshed out a number of features. We've
> added a couple of IOCTLs and sysfs attributes which are documented in
> the patch. Significant work has also been done on the userspace tool
> which is available under a GPL license at [2]. We've also had testing
> done by some of the interested parties.
>
> We hope to see this work included in either 4.11 or 4.12 assuming a
> smooth review process.
>
> The patch is based off of the v4.10-rc6 release.
>
> Thanks for your review,
>
> Logan
>
> [1] https://www.spinics.net/lists/linux-pci/msg56897.html
> [2] https://github.com/sbates130272/switchtec-user
>
> Logan Gunthorpe (4):
> MicroSemi Switchtec management interface driver
> switchtec: Add user interface documentation
> switchtec: Add sysfs attributes to the Switchtec driver
> switchtec: Add IOCTLs to the Switchtec driver
>
> Documentation/ABI/testing/sysfs-class-switchtec | 96 ++
> Documentation/ioctl/ioctl-number.txt | 1 +
> Documentation/switchtec.txt | 80 ++
> MAINTAINERS | 11 +
> drivers/pci/Kconfig | 1 +
> drivers/pci/Makefile | 1 +
> drivers/pci/switch/Kconfig | 13 +
> drivers/pci/switch/Makefile | 1 +
> drivers/pci/switch/switchtec.c | 1535 +++++++++++++++++++++++
> include/uapi/linux/switchtec_ioctl.h | 132 ++
> 10 files changed, 1871 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-class-switchtec
> create mode 100644 Documentation/switchtec.txt
> create mode 100644 drivers/pci/switch/Kconfig
> create mode 100644 drivers/pci/switch/Makefile
> create mode 100644 drivers/pci/switch/switchtec.c
> create mode 100644 include/uapi/linux/switchtec_ioctl.h
This driver doesn't have anything to do with the PCI core, other than
using the pci_register_driver() interface (just like all other drivers
for PCI-connected devices), so drivers/pci doesn't really feel like
the right place for it. Putting it in drivers/pci leads to the sort
of confusion you mentioned above ("To make this entirely clear ...").
Would drivers/perf or drivers/misc/switchtec/ be possible places for
it?
Bjorn
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[PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-02-26 08:20 +0100
[PATCH v5 1/4] MicroSemi Switchtec management interface driver Logan Gunthorpe <logang@deltatee.com> - 2017-02-26 08:20 +0100
[PATCH v5 4/4] switchtec: Add IOCTLs to the Switchtec driver Logan Gunthorpe <logang@deltatee.com> - 2017-02-26 08:20 +0100
[PATCH v5 2/4] switchtec: Add user interface documentation Logan Gunthorpe <logang@deltatee.com> - 2017-02-26 08:50 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Bjorn Helgaas <helgaas@kernel.org> - 2017-02-28 16:10 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-02-28 18:20 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-02-28 18:40 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 01:50 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Bjorn Helgaas <helgaas@kernel.org> - 2017-03-02 02:00 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Bjorn Helgaas <helgaas@kernel.org> - 2017-03-01 23:00 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-01 23:30 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 00:00 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-02 01:50 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-02 02:00 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 02:20 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 02:20 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Keith Busch <keith.busch@intel.com> - 2017-03-01 23:40 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Keith Busch <keith.busch@intel.com> - 2017-03-02 00:00 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 00:20 +0100
Re: [PATCH v5 0/4] New Microsemi PCI Switch Management Driver Logan Gunthorpe <logang@deltatee.com> - 2017-03-02 00:20 +0100
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