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net: switchdev: Replace port attr set SDO with a notification

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Drop switchdev_ops.switchdev_port_attr_set. Drop the uses of this field
from all clients, which were migrated to use switchdev notification in
the previous patches.

Add a new function switchdev_port_attr_notify() that sends the switchdev
notifications SWITCHDEV_PORT_ATTR_SET and calls the blocking (process)
notifier chain.

We have one odd case within net/bridge/br_switchdev.c with the
SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS attribute identifier that
requires executing from atomic context, we deal with that one
specifically.

Drop __switchdev_port_attr_set() and update switchdev_port_attr_set()
likewise.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2019-02-27 11:44:31 -08:00 • committed by David S. Miller
parent 570b68c8dd
commit d45224d604
2 changed files with 32 additions and 31 deletions
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8
net/bridge/br_switchdev.c
View file

@ -67,12 +67,18 @@ int br_switchdev_set_port_flag(struct net_bridge_port *p,
.id = SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
.u.brport_flags = mask,
};
struct switchdev_notifier_port_attr_info info = {
.attr = &attr,
};
int err;
if (mask & ~BR_PORT_FLAGS_HW_OFFLOAD)
return 0;
err = switchdev_port_attr_set(p->dev, &attr);
/* We run from atomic context here */
err = call_switchdev_notifiers(SWITCHDEV_PORT_ATTR_SET, p->dev,
&info.info, NULL);
err = notifier_to_errno(err);
if (err == -EOPNOTSUPP)
return 0;