linux-toradex.git/drivers/net/rionet.c, branch v4.9.58

drivers: net: remove NETDEV_TX_LOCKED

2016-04-26T19:53:05+00:00

replace the trylock by a full spin_lock and remove TX_LOCKED return value.
Followup patch will remove TX_LOCKED from the kernel.

Cc: Jon Mason 
Cc: Andy Gospodarek 
Signed-off-by: Florian Westphal 
Signed-off-by: David S. Miller

rapidio/rionet: add mport removal handling

2016-03-22T22:36:02+00:00

Add handling of a local mport device removal.

RIONET driver registers itself as class interface that supports only
removal notification, 'add_device' callback is not provided because
RIONET network device can be initialized only after enumeration is
completed and the existing method (using remote peer addition) satisfies
this condition.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Aurelien Jacquiot 
Cc: Andre van Herk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/rionet: add locking into add/remove device

2016-03-22T22:36:02+00:00

Add spinlock protection when handling list of connected peers and
ability to handle new peer device addition after the RIONET device was
open.  Before his update RIONET was sending JOIN requests only when it
have been opened, peer devices added later have been missing from this
process.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Aurelien Jacquiot 
Cc: Andre van Herk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/rionet: add shutdown event handling

2016-03-22T22:36:02+00:00

Add shutdown notification handler which terminates active connections
with remote RapidIO nodes.  This prevents remote nodes from sending
packets to the powered off node and eliminates hardware error events on
remote nodes.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Aurelien Jacquiot 
Cc: Andre van Herk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/rionet: add capability to change MTU

2016-03-22T22:36:02+00:00

These patches are the result of extensive collaboration within the
RapidIO.org Software Task Group between Texas Instruments, Freescale,
Prodrive Technologies, Nokia Networks, BAE and IDT.  Additional input
was received from other members of RapidIO.org.  The objective was to
create a character mode driver interface which exposes the capabilities
of RapidIO devices directly to applications, in a manner that allows the
numerous and varied RapidIO implementations to interoperate.

The Software Task Group has also developed fabric management, Remote
Memory Access, and sockets applications which make use of these
interfaces in user space.  Intensive testing with these applications
prompted the RapidIO subsystem updates provided within this set of
patches.

This patch (of 29):

Replace default Ethernet-specific routine by the custom one to allow
setting of larger MTU supported by RapidIO messaging (max RIO packet
size is 4096 bytes).

Signed-off-by: Aurelien Jacquiot 
Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Andre van Herk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/rionet: fix deadlock on SMP

2016-03-22T22:36:02+00:00

Fix deadlocking during concurrent receive and transmit operations on SMP
platforms caused by the use of incorrect lock: on transmit 'tx_lock'
spinlock should be used instead of 'lock' which is used for receive
operation.

This fix is applicable to kernel versions starting from v2.15.

Signed-off-by: Aurelien Jacquiot 
Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Andre van Herk 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bus: subsys: update return type of ->remove_dev() to void

2015-08-06T00:08:14+00:00

Its return value is not used by the subsys core and nothing meaningful
can be done with it, even if we want to use it. The subsys device is
anyway getting removed.

Update prototype of ->remove_dev() to make its return type as void. Fix
all usage sites as well.

Signed-off-by: Viresh Kumar 
Signed-off-by: Greg Kroah-Hartman

net: get rid of SET_ETHTOOL_OPS

2014-05-13T21:43:20+00:00

net: get rid of SET_ETHTOOL_OPS

Dave Miller mentioned he'd like to see SET_ETHTOOL_OPS gone.
This does that.

Mostly done via coccinelle script:
@@
struct ethtool_ops *ops;
struct net_device *dev;
@@
-       SET_ETHTOOL_OPS(dev, ops);
+       dev->ethtool_ops = ops;

Compile tested only, but I'd seriously wonder if this broke anything.

Suggested-by: Dave Miller 
Signed-off-by: Wilfried Klaebe 
Acked-by: Felipe Balbi 
Signed-off-by: David S. Miller

rapidio: rework device hierarchy and introduce mport class of devices

2014-04-07T23:36:07+00:00

This patch removes an artificial RapidIO bus root device and establishes
actual device hierarchy by providing reference to real parent devices.
It also introduces device class for RapidIO controller devices (on-chip
or an eternal bridge, known as "mport").

Existing implementation was sufficient for SoC-based platforms that have
a single RapidIO controller.  With introduction of devices using
multiple RapidIO controllers and PCIe-to-RapidIO bridges the old scheme
is very limiting or does not work at all.  The implemented changes allow
to properly reference platform's local RapidIO mport devices and provide
device details needed for upper layers.

This change to RapidIO device hierarchy does not break any known
existing kernel or user space interfaces.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Kumar Gala 
Cc: Andre van Herk 
Cc: Stef van Os 
Cc: Jerry Jacobs 
Cc: Arno Tiemersma 
Cc: Rob Landley 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/rionet: rework driver initialization and removal

2013-07-03T23:08:04+00:00

Rework probe/remove routines to prevent rionet driver from monopolizing
target RapidIO devices.  Fix conflict with modular RapidIO switch drivers.

Using one of RapidIO messaging channels rionet driver provides a service
layer common to all endpoint devices in a system's RapidIO network.  These
devices may also require their own specific device driver which will be
blocked from attaching to the target device by rionet (or block rionet if
loaded earlier).  To avoid conflict with device-specific drivers, the
rionet driver is reworked to be registered as a subsystem interface on the
RapidIO bus.

The reworked rio_remove_dev() and rionet_exit() routines also include
handling of individual rionet peer device removal which was not supported
before.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Kumar Gala 
Cc: "David S. Miller" 
Cc: Andre van Herk 
Cc: Micha Nelissen 
Cc: Stef van Os 
Cc: Jean Delvare 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds