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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-02-12 17:15:55 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-12 17:08:04 -0800 |
| commit | e18f4c18ab5b0dd47caaf8377c2e36d66f632a8c (patch) | |
| tree | a89ff5e705df268b0035f9d8611f7cb408ff8b83 /drivers/net/ethernet/rocker | |
| parent | 5e38c15856e94f9da616e663fda683502bac2e43 (diff) | |
| download | linux-stable-e18f4c18ab5b0dd47caaf8377c2e36d66f632a8c.tar.gz linux-stable-e18f4c18ab5b0dd47caaf8377c2e36d66f632a8c.tar.bz2 linux-stable-e18f4c18ab5b0dd47caaf8377c2e36d66f632a8c.zip | |
net: switchdev: pass flags and mask to both {PRE_,}BRIDGE_FLAGS attributes
This switchdev attribute offers a counterproductive API for a driver
writer, because although br_switchdev_set_port_flag gets passed a
"flags" and a "mask", those are passed piecemeal to the driver, so while
the PRE_BRIDGE_FLAGS listener knows what changed because it has the
"mask", the BRIDGE_FLAGS listener doesn't, because it only has the final
value. But certain drivers can offload only certain combinations of
settings, like for example they cannot change unicast flooding
independently of multicast flooding - they must be both on or both off.
The way the information is passed to switchdev makes drivers not
expressive enough, and unable to reject this request ahead of time, in
the PRE_BRIDGE_FLAGS notifier, so they are forced to reject it during
the deferred BRIDGE_FLAGS attribute, where the rejection is currently
ignored.
This patch also changes drivers to make use of the "mask" field for edge
detection when possible.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/rocker')
| -rw-r--r-- | drivers/net/ethernet/rocker/rocker_main.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index 740a715c49c6..3473d296b2e2 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -1576,7 +1576,7 @@ rocker_world_port_attr_bridge_flags_support_get(const struct rocker_port * static int rocker_world_port_attr_pre_bridge_flags_set(struct rocker_port *rocker_port, - unsigned long brport_flags) + struct switchdev_brport_flags flags) { struct rocker_world_ops *wops = rocker_port->rocker->wops; unsigned long brport_flags_s; @@ -1590,7 +1590,7 @@ rocker_world_port_attr_pre_bridge_flags_set(struct rocker_port *rocker_port, if (err) return err; - if (brport_flags & ~brport_flags_s) + if (flags.mask & ~brport_flags_s) return -EINVAL; return 0; @@ -1598,14 +1598,14 @@ rocker_world_port_attr_pre_bridge_flags_set(struct rocker_port *rocker_port, static int rocker_world_port_attr_bridge_flags_set(struct rocker_port *rocker_port, - unsigned long brport_flags) + struct switchdev_brport_flags flags) { struct rocker_world_ops *wops = rocker_port->rocker->wops; if (!wops->port_attr_bridge_flags_set) return -EOPNOTSUPP; - return wops->port_attr_bridge_flags_set(rocker_port, brport_flags); + return wops->port_attr_bridge_flags_set(rocker_port, flags.val); } static int @@ -2058,7 +2058,7 @@ static int rocker_port_attr_set(struct net_device *dev, break; case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: err = rocker_world_port_attr_pre_bridge_flags_set(rocker_port, - attr->u.brport_flags); + attr->u.brport_flags); break; case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: err = rocker_world_port_attr_bridge_flags_set(rocker_port, |