netdev - Re: [PATCH v2 net-next 0/5] Interrupt support for mv88e6xxx

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Date:   Tue, 18 Oct 2016 14:51:38 -0400
From:   Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:     Andrew Lunn <andrew@...n.ch>, David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v2 net-next 0/5] Interrupt support for mv88e6xxx

Hi Andrew,

Andrew Lunn <andrew@...n.ch> writes:

> This patchset add interrupt controller support to the MV88E6xxx.  This
> allows access to the interrupts the internal PHY generate. These
> interrupts can then be associated to a PHY device in the device tree
> and used by the PHY lib, rather than polling.
>
> Since interrupt handling needs to make MDIO bus accesses, threaded
> interrupts are used. The phylib needs to request the PHY interrupt
> using the threaded IRQ API. This in term allows some simplification to
> the code, in that the phylib interrupt handler can directly call
> phy_change(), rather than use a work queue. The work queue is however
> retained for the phy_mac_interrupt() call, which can be called in hard
> interrupt context.
>
> Since RFC v1:
>
> Keep phy_mac_interrupt() callable in hard IRQ context.
>
> The fix to trigger the phy state machine transitions on interrupts has
> already been submitted, so is dropped from here.
>
> Added back shared interrupts support.
>
>
> Andrew Lunn (5):
>   net: dsa: mv88e6xxx: Implement interrupt support.
>   net: phy: Use threaded IRQ, to allow IRQ from sleeping devices
>   net: phy: Threaded interrupts allow some simplification
>   net: phy: Use phy name when requesting the interrupt
>   arm: vf610: zii devel b: Add support for switch interrupts
>
>  .../devicetree/bindings/net/dsa/marvell.txt        |  21 +-
>  arch/arm/boot/dts/vf610-zii-dev-rev-b.dts          |  51 +++++
>  drivers/net/dsa/mv88e6xxx/chip.c                   | 248 ++++++++++++++++++++-
>  drivers/net/dsa/mv88e6xxx/global2.c                | 139 +++++++++++-
>  drivers/net/dsa/mv88e6xxx/global2.h                |  11 +
>  drivers/net/dsa/mv88e6xxx/mv88e6xxx.h              |  31 +++
>  drivers/net/phy/phy.c                              |  52 +++--
>  drivers/net/phy/phy_device.c                       |   2 +-
>  include/linux/phy.h                                |   5 +-
>  9 files changed, 522 insertions(+), 38 deletions(-)

mv88e6xxx_g1_* should've been moved to global1.c, I'll move them later.

For what it's worth:

Reviewed-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>

Thanks,

        Vivien