* released.
*/
- attr->trans = SWITCHDEV_TRANS_ABORT;
- __switchdev_port_attr_set(dev, attr);
+ if (err != -EOPNOTSUPP) {
+ attr->trans = SWITCHDEV_TRANS_ABORT;
+ __switchdev_port_attr_set(dev, attr);
+ }
return err;
}
attr->trans = SWITCHDEV_TRANS_COMMIT;
err = __switchdev_port_attr_set(dev, attr);
- BUG_ON(err);
+ WARN(err, "%s: Commit of attribute (id=%d) failed.\n",
+ dev->name, attr->id);
return err;
}
* released.
*/
- obj->trans = SWITCHDEV_TRANS_ABORT;
- __switchdev_port_obj_add(dev, obj);
+ if (err != -EOPNOTSUPP) {
+ obj->trans = SWITCHDEV_TRANS_ABORT;
+ __switchdev_port_obj_add(dev, obj);
+ }
return err;
}
}
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
+struct switchdev_vlan_dump {
+ struct switchdev_obj obj;
+ struct sk_buff *skb;
+ u32 filter_mask;
+ u16 flags;
+ u16 begin;
+ u16 end;
+};
+
+static int switchdev_port_vlan_dump_put(struct net_device *dev,
+ struct switchdev_vlan_dump *dump)
+{
+ struct bridge_vlan_info vinfo;
+
+ vinfo.flags = dump->flags;
+
+ if (dump->begin == 0 && dump->end == 0) {
+ return 0;
+ } else if (dump->begin == dump->end) {
+ vinfo.vid = dump->begin;
+ if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
+ sizeof(vinfo), &vinfo))
+ return -EMSGSIZE;
+ } else {
+ vinfo.vid = dump->begin;
+ vinfo.flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN;
+ if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
+ sizeof(vinfo), &vinfo))
+ return -EMSGSIZE;
+ vinfo.vid = dump->end;
+ vinfo.flags &= ~BRIDGE_VLAN_INFO_RANGE_BEGIN;
+ vinfo.flags |= BRIDGE_VLAN_INFO_RANGE_END;
+ if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
+ sizeof(vinfo), &vinfo))
+ return -EMSGSIZE;
+ }
+
+ return 0;
+}
+
+static int switchdev_port_vlan_dump_cb(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ struct switchdev_vlan_dump *dump =
+ container_of(obj, struct switchdev_vlan_dump, obj);
+ struct switchdev_obj_vlan *vlan = &dump->obj.u.vlan;
+ int err = 0;
+
+ if (vlan->vid_begin > vlan->vid_end)
+ return -EINVAL;
+
+ if (dump->filter_mask & RTEXT_FILTER_BRVLAN) {
+ dump->flags = vlan->flags;
+ for (dump->begin = dump->end = vlan->vid_begin;
+ dump->begin <= vlan->vid_end;
+ dump->begin++, dump->end++) {
+ err = switchdev_port_vlan_dump_put(dev, dump);
+ if (err)
+ return err;
+ }
+ } else if (dump->filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) {
+ if (dump->begin > vlan->vid_begin &&
+ dump->begin >= vlan->vid_end) {
+ if ((dump->begin - 1) == vlan->vid_end &&
+ dump->flags == vlan->flags) {
+ /* prepend */
+ dump->begin = vlan->vid_begin;
+ } else {
+ err = switchdev_port_vlan_dump_put(dev, dump);
+ dump->flags = vlan->flags;
+ dump->begin = vlan->vid_begin;
+ dump->end = vlan->vid_end;
+ }
+ } else if (dump->end <= vlan->vid_begin &&
+ dump->end < vlan->vid_end) {
+ if ((dump->end + 1) == vlan->vid_begin &&
+ dump->flags == vlan->flags) {
+ /* append */
+ dump->end = vlan->vid_end;
+ } else {
+ err = switchdev_port_vlan_dump_put(dev, dump);
+ dump->flags = vlan->flags;
+ dump->begin = vlan->vid_begin;
+ dump->end = vlan->vid_end;
+ }
+ } else {
+ err = -EINVAL;
+ }
+ }
+
+ return err;
+}
+
+static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
+ u32 filter_mask)
+{
+ struct switchdev_vlan_dump dump = {
+ .obj = {
+ .id = SWITCHDEV_OBJ_PORT_VLAN,
+ .cb = switchdev_port_vlan_dump_cb,
+ },
+ .skb = skb,
+ .filter_mask = filter_mask,
+ };
+ int err = 0;
+
+ if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
+ (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
+ err = switchdev_port_obj_dump(dev, &dump.obj);
+ if (err)
+ goto err_out;
+ if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
+ /* last one */
+ err = switchdev_port_vlan_dump_put(dev, &dump);
+ }
+
+err_out:
+ return err == -EOPNOTSUPP ? 0 : err;
+}
+
/**
* switchdev_port_bridge_getlink - Get bridge port attributes
*
int err;
err = switchdev_port_attr_get(dev, &attr);
- if (err)
+ if (err && err != -EOPNOTSUPP)
return err;
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
- attr.u.brport_flags, mask, nlflags);
+ attr.u.brport_flags, mask, nlflags,
+ filter_mask, switchdev_port_vlan_fill);
}
EXPORT_SYMBOL_GPL(switchdev_port_bridge_getlink);
vinfo = nla_data(attr);
vlan->flags = vinfo->flags;
if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
- if (vlan->vid_start)
+ if (vlan->vid_begin)
return -EINVAL;
- vlan->vid_start = vinfo->vid;
+ vlan->vid_begin = vinfo->vid;
} else if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END) {
- if (!vlan->vid_start)
+ if (!vlan->vid_begin)
return -EINVAL;
vlan->vid_end = vinfo->vid;
- if (vlan->vid_end <= vlan->vid_start)
+ if (vlan->vid_end <= vlan->vid_begin)
return -EINVAL;
err = f(dev, &obj);
if (err)
return err;
memset(vlan, 0, sizeof(*vlan));
} else {
- if (vlan->vid_start)
+ if (vlan->vid_begin)
return -EINVAL;
- vlan->vid_start = vinfo->vid;
+ vlan->vid_begin = vinfo->vid;
vlan->vid_end = vinfo->vid;
err = f(dev, &obj);
if (err)
if (switchdev_port_attr_get(dev, &attr))
return NULL;
- if (nhsel > 0) {
- if (prev_attr.u.ppid.id_len != attr.u.ppid.id_len)
- return NULL;
- if (memcmp(prev_attr.u.ppid.id, attr.u.ppid.id,
- attr.u.ppid.id_len))
+ if (nhsel > 0 &&
+ !netdev_phys_item_id_same(&prev_attr.u.ppid, &attr.u.ppid))
return NULL;
- }
prev_attr = attr;
}
fi->fib_net->ipv4.fib_offload_disabled = true;
}
EXPORT_SYMBOL_GPL(switchdev_fib_ipv4_abort);
+
+static bool switchdev_port_same_parent_id(struct net_device *a,
+ struct net_device *b)
+{
+ struct switchdev_attr a_attr = {
+ .id = SWITCHDEV_ATTR_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ };
+ struct switchdev_attr b_attr = {
+ .id = SWITCHDEV_ATTR_PORT_PARENT_ID,
+ .flags = SWITCHDEV_F_NO_RECURSE,
+ };
+
+ if (switchdev_port_attr_get(a, &a_attr) ||
+ switchdev_port_attr_get(b, &b_attr))
+ return false;
+
+ return netdev_phys_item_id_same(&a_attr.u.ppid, &b_attr.u.ppid);
+}
+
+static u32 switchdev_port_fwd_mark_get(struct net_device *dev,
+ struct net_device *group_dev)
+{
+ struct net_device *lower_dev;
+ struct list_head *iter;
+
+ netdev_for_each_lower_dev(group_dev, lower_dev, iter) {
+ if (lower_dev == dev)
+ continue;
+ if (switchdev_port_same_parent_id(dev, lower_dev))
+ return lower_dev->offload_fwd_mark;
+ return switchdev_port_fwd_mark_get(dev, lower_dev);
+ }
+
+ return dev->ifindex;
+}
+
+static void switchdev_port_fwd_mark_reset(struct net_device *group_dev,
+ u32 old_mark, u32 *reset_mark)
+{
+ struct net_device *lower_dev;
+ struct list_head *iter;
+
+ netdev_for_each_lower_dev(group_dev, lower_dev, iter) {
+ if (lower_dev->offload_fwd_mark == old_mark) {
+ if (!*reset_mark)
+ *reset_mark = lower_dev->ifindex;
+ lower_dev->offload_fwd_mark = *reset_mark;
+ }
+ switchdev_port_fwd_mark_reset(lower_dev, old_mark, reset_mark);
+ }
+}
+
+/**
+ * switchdev_port_fwd_mark_set - Set port offload forwarding mark
+ *
+ * @dev: port device
+ * @group_dev: containing device
+ * @joining: true if dev is joining group; false if leaving group
+ *
+ * An ungrouped port's offload mark is just its ifindex. A grouped
+ * port's (member of a bridge, for example) offload mark is the ifindex
+ * of one of the ports in the group with the same parent (switch) ID.
+ * Ports on the same device in the same group will have the same mark.
+ *
+ * Example:
+ *
+ * br0 ifindex=9
+ * sw1p1 ifindex=2 mark=2
+ * sw1p2 ifindex=3 mark=2
+ * sw2p1 ifindex=4 mark=5
+ * sw2p2 ifindex=5 mark=5
+ *
+ * If sw2p2 leaves the bridge, we'll have:
+ *
+ * br0 ifindex=9
+ * sw1p1 ifindex=2 mark=2
+ * sw1p2 ifindex=3 mark=2
+ * sw2p1 ifindex=4 mark=4
+ * sw2p2 ifindex=5 mark=5
+ */
+void switchdev_port_fwd_mark_set(struct net_device *dev,
+ struct net_device *group_dev,
+ bool joining)
+{
+ u32 mark = dev->ifindex;
+ u32 reset_mark = 0;
+
+ if (group_dev && joining) {
+ mark = switchdev_port_fwd_mark_get(dev, group_dev);
+ } else if (group_dev && !joining) {
+ if (dev->offload_fwd_mark == mark)
+ /* Ohoh, this port was the mark reference port,
+ * but it's leaving the group, so reset the
+ * mark for the remaining ports in the group.
+ */
+ switchdev_port_fwd_mark_reset(group_dev, mark,
+ &reset_mark);
+ }
+
+ dev->offload_fwd_mark = mark;
+}
+EXPORT_SYMBOL_GPL(switchdev_port_fwd_mark_set);
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