linux-stable.git/net/dsa, branch v4.17.2

net: dsa: Do not register devlink for unused ports

2018-05-18T16:08:25+00:00

Even if commit 1d27732f411d ("net: dsa: setup and teardown ports") indicated
that registering a devlink instance for unused ports is not a problem, and this
is true, this can be confusing nonetheless, so let's not do it.

Fixes: 1d27732f411d ("net: dsa: setup and teardown ports")
Reported-by: Jiri Pirko 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Discard frames from unused ports

2018-04-08T14:34:49+00:00

The Marvell switches under some conditions will pass a frame to the
host with the port being the CPU port. Such frames are invalid, and
should be dropped. Not dropping them can result in a crash when
incrementing the receive statistics for an invalid port.

Reported-by: Chris Healy 
Fixes: 91da11f870f0 ("net: Distributed Switch Architecture protocol support")
Signed-off-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-03-23T15:31:58+00:00

Fun set of conflict resolutions here...

For the mac80211 stuff, these were fortunately just parallel
adds.  Trivially resolved.

In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the
function phy_disable_interrupts() earlier in the file, whilst in
'net-next' the phy_error() call from this function was removed.

In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the
'rt_table_id' member of rtable collided with a bug fix in 'net' that
added a new struct member "rt_mtu_locked" which needs to be copied
over here.

The mlxsw driver conflict consisted of net-next separating
the span code and definitions into separate files, whilst
a 'net' bug fix made some changes to that moved code.

The mlx5 infiniband conflict resolution was quite non-trivial,
the RDMA tree's merge commit was used as a guide here, and
here are their notes:

====================

    Due to bug fixes found by the syzkaller bot and taken into the for-rc
    branch after development for the 4.17 merge window had already started
    being taken into the for-next branch, there were fairly non-trivial
    merge issues that would need to be resolved between the for-rc branch
    and the for-next branch.  This merge resolves those conflicts and
    provides a unified base upon which ongoing development for 4.17 can
    be based.

    Conflicts:
            drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524
            (IB/mlx5: Fix cleanup order on unload) added to for-rc and
            commit b5ca15ad7e61 (IB/mlx5: Add proper representors support)
            add as part of the devel cycle both needed to modify the
            init/de-init functions used by mlx5.  To support the new
            representors, the new functions added by the cleanup patch
            needed to be made non-static, and the init/de-init list
            added by the representors patch needed to be modified to
            match the init/de-init list changes made by the cleanup
            patch.
    Updates:
            drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function
            prototypes added by representors patch to reflect new function
            names as changed by cleanup patch
            drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init
            stage list to match new order from cleanup patch
====================

Signed-off-by: David S. Miller

net: dsa: Fix dsa_is_user_port() test inversion

2018-03-13T01:04:55+00:00

During the conversion to dsa_is_user_port(), a condition ended up being
reversed, which would prevent the creation of any user port when using
the legacy binding and/or platform data, fix that.

Fixes: 4a5b85ffe2a0 ("net: dsa: use dsa_is_user_port everywhere")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

dsa: Pass the port to get_sset_count()

2018-03-04T18:34:18+00:00

By passing the port, we allow different ports to have different
statistics. This is useful since some ports have SERDES interfaces
with their own statistic counters.

Signed-off-by: Andrew Lunn 
Tested-by: Florian Fainelli 
Reviewed-by: Vivien Didelot 
Signed-off-by: David S. Miller

net: dsa: forward timestamping callbacks to switch drivers

2018-02-14T19:33:37+00:00

Forward the rx/tx timestamp machinery from the dsa infrastructure to the
switch driver.

On the rx side, defer delivery of skbs until we have an rx timestamp.
This mimicks the behavior of skb_defer_rx_timestamp.

On the tx side, identify PTP packets, clone them, and pass them to the
underlying switch driver before we transmit. This mimicks the behavior
of skb_tx_timestamp.

Adjusted txstamp API to keep the allocation and freeing of the clone
in the same central function by Richard Cochran

Signed-off-by: Brandon Streiff 
Signed-off-by: Richard Cochran 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: forward hardware timestamping ioctls to switch driver

2018-02-14T19:33:37+00:00

This patch adds support to the dsa slave network device so that
switch drivers can implement the SIOC[GS]HWTSTAMP ioctls and the
ethtool timestamp-info interface.

Signed-off-by: Brandon Streiff 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: dsa: Support internal phy on 'cpu' port

2018-01-24T00:22:38+00:00

This adds support for enabling the internal PHY for a 'cpu' port.
It has been tested on GE B850v3,  B650v3 and B450v3, which have a
built-in MV88E6240 switch hardwired to a PCIe based network card.
On these machines the internal PHY of the i210 network card and
the Marvell switch are connected to each other and must be enabled
for properly using the switch. While the i210 PHY will be enabled
when the network interface is enabled, the switch's port is not
exposed as network interface. Additionally the mv88e6xxx driver
resets the chip during probe, so the PHY is disabled without this
patch.

Signed-off-by: Sebastian Reichel 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Move padding into Broadcom tagger

2018-01-05T16:21:31+00:00

Instead of having the different master network device drivers
potentially used by DSA/Broadcom tags, move the padding necessary for
the switches to accept short packets where it makes most sense: within
tag_brcm.c. This avoids multiplying the number of similar commits to
e.g: bgmac, bcmsysport, etc.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: dsa: Fix dsa_legacy_register() return value

2018-01-03T02:52:48+00:00

We need to make the dsa_legacy_register() stub return 0 in order for
dsa_init_module() to successfully register and continue registering the
ETH_P_XDSA packet handler.

Fixes: 2a93c1a3651f ("net: dsa: Allow compiling out legacy support")
Reported-by: Egil Hjelmeland 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller