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net: dsa: Add new binding implementation

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The existing DSA binding has a number of limitations and problems. The
main problem is that it cannot represent a switch as a linux device,
hanging off some bus. It is limited to one CPU port. The DSA platform
device is artificial, and does not really represent hardware.

Implement a new binding which can be embedded into any type of node on
a bus to represent one switch device, and its links to other switches.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2016-06-04 21:17:07 +02:00 • committed by David S. Miller
parent b516d45323
commit 83c0afaec7
7 changed files with 694 additions and 4 deletions
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8
net/dsa/slave.c
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@ -1099,14 +1099,18 @@ int dsa_slave_resume(struct net_device *slave_dev)
}
int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
int port, char *name)
int port, const char *name)
{
struct net_device *master = ds->dst->master_netdev;
struct dsa_switch_tree *dst = ds->dst;
struct net_device *master;
struct net_device *slave_dev;
struct dsa_slave_priv *p;
int ret;
master = ds->dst->master_netdev;
if (ds->master_netdev)
master = ds->master_netdev;
slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name,
NET_NAME_UNKNOWN, ether_setup);
if (slave_dev == NULL)