netdev - Re: [PATCH v3 00/10] New network driver for Amiga X-Surf 100 (m68k)

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Date:   Wed, 18 Apr 2018 17:10:45 +1200
From:   Michael Schmitz <schmitzmic@...il.com>
To:     netdev <netdev@...r.kernel.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Finn Thain <fthain@...egraphics.com.au>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        "Linux/m68k" <linux-m68k@...r.kernel.org>,
        Michael Karcher <Michael.Karcher@...berlin.de>
Subject: Re: [PATCH v3 00/10] New network driver for Amiga X-Surf 100 (m68k)

All,

just noticed belatedly that the Makefile hunk of patch 9 does no
longer apply cleanly in 4.17-rc1, sorry. My series was based on 4.16.
I'll resend that one, OK?

Cheers,

  Michael


On Wed, Apr 18, 2018 at 4:26 PM, Michael Schmitz <schmitzmic@...il.com> wrote:
> This patch series adds support for the Individual Computers X-Surf 100
> network card for m68k Amiga, a network adapter based on the AX88796 chip set.
>
> The driver was originally written for kernel version 3.19 by Michael Karcher
> (see CC:), and adapted to 4.16 for submission to netdev by me. Questions
> regarding motivation for some of the changes are probably best directed at
> Michael Karcher.
>
> The driver has been tested by Adrian <glaubitz@...sik.fu-berlin.de> who will
> send his Tested-by tag separately.
>
> A few changes to the ax88796 driver were required:
> - to read the MAC address, some setup of the ax99796 chip must be done,
> - attach to the MII bus only on device open to allow module unloading,
> - allow to supersede ax_block_input/ax_block_output by card-specific
>   optimized code,
> - use an optional interrupt status callback to allow easier sharing of the
>   card interrupt,
> - set IRQF_SHARED if platform IRQ resource is marked shareable,
>
> The Asix Electronix PHY used on the X-Surf 100 is buggy, and causes the
> software reset to hang if the previous command sent to the PHY was also
> a soft reset. This bug requires addition of a PHY driver for Asix PHYs
> to provide a fixed .soft_reset function, included in this series.
>
> Some additional cleanup:
> - do not attempt to free IRQ in ax_remove (complements 82533ad9a1c),
> - clear platform drvdata on probe fail and module remove.
>
> Changes since v1:
>
> Raised in review by Andrew Lunn:
> - move MII code around to avoid need for forward declaration
> - combine patches 2 and 7 to add cleanup in error path
>
> Changes since v2:
>
> - corrected authorship attribution to Michael Karcher
>
> Suggested by Geert Uytterhoeven:
> - use ei_local->reset_8390() instead of duplicating ax_reset_8390()
> - use %pR to format struct resource pointers
> - assign pdev and xs100 pointers in declaration
> - don't split error messages
> - change Kconfig logic to only require XSURF100 set on Amiga
>
> Suggested by Andrew Lunn:
> - add COMPILE_TEST to ax88796 Kconfig options
> - use new Asix PHY driver for X-Surf 100
>
> Suggested by Andrew Lunn/Finn Thain:
> - declare struct sk_buff in ax88796.h
> - correct whitespace error in ax88796.h
>
> This series' patches, in order:
>
> 1/9 net: phy: new Asix Electronics PHY driver
> 2/9 net: ax88796: Fix MAC address reading
> 3/9 net: ax88796: Attach MII bus only when open
> 4/9 net: ax88796: Do not free IRQ in ax_remove() (already freed in ax_close()).
> 5/9 net: ax88796: Add block_input/output hooks to ax_plat_data
> 6/9 net: ax88796: add interrupt status callback to platform data
> 7/9 net: ax88796: set IRQF_SHARED flag when IRQ resource is marked as shareable
> 8/9 net: ax88796: release platform device drvdata on probe error and module remove
> 9/9 net: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k)
>
>  drivers/net/ethernet/8390/Kconfig    |   17 ++-
>  drivers/net/ethernet/8390/Makefile   |    1 +
>  drivers/net/ethernet/8390/ax88796.c  |  228 ++++++++++++--------
>  drivers/net/ethernet/8390/xsurf100.c |  381 ++++++++++++++++++++++++++++++++++
>  drivers/net/phy/Kconfig              |    6 +
>  drivers/net/phy/Makefile             |    1 +
>  drivers/net/phy/asix.c               |   65 ++++++
>  drivers/net/phy/phy_device.c         |    3 +-
>  include/linux/phy.h                  |    1 +
>  include/net/ax88796.h                |   14 ++
>  10 files changed, 621 insertions(+), 96 deletions(-)
>
> Cheers,
>
>   Michael