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193 lines
5.1 KiB
193 lines
5.1 KiB
/* |
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* Copyright (c) 2012 Mellanox Technologies. - All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include <linux/netdevice.h> |
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#include <linux/if_arp.h> /* For ARPHRD_xxx */ |
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#include <linux/module.h> |
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#include <net/rtnetlink.h> |
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#include "ipoib.h" |
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static const struct nla_policy ipoib_policy[IFLA_IPOIB_MAX + 1] = { |
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[IFLA_IPOIB_PKEY] = { .type = NLA_U16 }, |
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[IFLA_IPOIB_MODE] = { .type = NLA_U16 }, |
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[IFLA_IPOIB_UMCAST] = { .type = NLA_U16 }, |
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}; |
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static int ipoib_fill_info(struct sk_buff *skb, const struct net_device *dev) |
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{ |
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struct ipoib_dev_priv *priv = ipoib_priv(dev); |
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u16 val; |
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if (nla_put_u16(skb, IFLA_IPOIB_PKEY, priv->pkey)) |
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goto nla_put_failure; |
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val = test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); |
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if (nla_put_u16(skb, IFLA_IPOIB_MODE, val)) |
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goto nla_put_failure; |
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val = test_bit(IPOIB_FLAG_UMCAST, &priv->flags); |
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if (nla_put_u16(skb, IFLA_IPOIB_UMCAST, val)) |
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goto nla_put_failure; |
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return 0; |
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nla_put_failure: |
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return -EMSGSIZE; |
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} |
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static int ipoib_changelink(struct net_device *dev, struct nlattr *tb[], |
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struct nlattr *data[], |
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struct netlink_ext_ack *extack) |
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{ |
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u16 mode, umcast; |
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int ret = 0; |
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if (data[IFLA_IPOIB_MODE]) { |
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mode = nla_get_u16(data[IFLA_IPOIB_MODE]); |
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if (mode == IPOIB_MODE_DATAGRAM) |
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ret = ipoib_set_mode(dev, "datagram\n"); |
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else if (mode == IPOIB_MODE_CONNECTED) |
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ret = ipoib_set_mode(dev, "connected\n"); |
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else |
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ret = -EINVAL; |
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if (ret < 0) |
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goto out_err; |
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} |
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if (data[IFLA_IPOIB_UMCAST]) { |
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umcast = nla_get_u16(data[IFLA_IPOIB_UMCAST]); |
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ipoib_set_umcast(dev, umcast); |
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} |
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out_err: |
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return ret; |
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} |
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static int ipoib_new_child_link(struct net *src_net, struct net_device *dev, |
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struct nlattr *tb[], struct nlattr *data[], |
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struct netlink_ext_ack *extack) |
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{ |
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struct net_device *pdev; |
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struct ipoib_dev_priv *ppriv; |
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u16 child_pkey; |
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int err; |
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if (!tb[IFLA_LINK]) |
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return -EINVAL; |
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pdev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); |
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if (!pdev || pdev->type != ARPHRD_INFINIBAND) |
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return -ENODEV; |
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ppriv = ipoib_priv(pdev); |
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if (test_bit(IPOIB_FLAG_SUBINTERFACE, &ppriv->flags)) { |
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ipoib_warn(ppriv, "child creation disallowed for child devices\n"); |
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return -EINVAL; |
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} |
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if (!data || !data[IFLA_IPOIB_PKEY]) { |
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ipoib_dbg(ppriv, "no pkey specified, using parent pkey\n"); |
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child_pkey = ppriv->pkey; |
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} else |
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child_pkey = nla_get_u16(data[IFLA_IPOIB_PKEY]); |
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err = ipoib_intf_init(ppriv->ca, ppriv->port, dev->name, dev); |
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if (err) { |
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ipoib_warn(ppriv, "failed to initialize pkey device\n"); |
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return err; |
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} |
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err = __ipoib_vlan_add(ppriv, ipoib_priv(dev), |
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child_pkey, IPOIB_RTNL_CHILD); |
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if (err) |
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return err; |
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if (data) { |
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err = ipoib_changelink(dev, tb, data, extack); |
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if (err) { |
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unregister_netdevice(dev); |
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return err; |
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} |
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} |
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return 0; |
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} |
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static void ipoib_del_child_link(struct net_device *dev, struct list_head *head) |
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{ |
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struct ipoib_dev_priv *priv = ipoib_priv(dev); |
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if (!priv->parent) |
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return; |
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unregister_netdevice_queue(dev, head); |
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} |
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static size_t ipoib_get_size(const struct net_device *dev) |
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{ |
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return nla_total_size(2) + /* IFLA_IPOIB_PKEY */ |
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nla_total_size(2) + /* IFLA_IPOIB_MODE */ |
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nla_total_size(2); /* IFLA_IPOIB_UMCAST */ |
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} |
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static struct rtnl_link_ops ipoib_link_ops __read_mostly = { |
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.kind = "ipoib", |
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.netns_refund = true, |
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.maxtype = IFLA_IPOIB_MAX, |
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.policy = ipoib_policy, |
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.priv_size = sizeof(struct ipoib_dev_priv), |
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.setup = ipoib_setup_common, |
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.newlink = ipoib_new_child_link, |
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.dellink = ipoib_del_child_link, |
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.changelink = ipoib_changelink, |
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.get_size = ipoib_get_size, |
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.fill_info = ipoib_fill_info, |
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}; |
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struct rtnl_link_ops *ipoib_get_link_ops(void) |
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{ |
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return &ipoib_link_ops; |
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} |
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int __init ipoib_netlink_init(void) |
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{ |
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return rtnl_link_register(&ipoib_link_ops); |
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} |
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void __exit ipoib_netlink_fini(void) |
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{ |
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rtnl_link_unregister(&ipoib_link_ops); |
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} |
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MODULE_ALIAS_RTNL_LINK("ipoib");
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