#include <linux/inetdevice.h>
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_user_verbs.h>
int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
union ib_gid *gid)
{
- u8 mac[6];
struct net_device *ndev;
int ret = 0;
spin_unlock(&mdev->iboe.lock);
if (ndev) {
- rdma_get_mcast_mac((struct in6_addr *)gid, mac);
- rtnl_lock();
- dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac);
ret = 1;
- rtnl_unlock();
dev_put(ndev);
}
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
u64 reg_id;
struct mlx4_ib_steering *ib_steering = NULL;
+ enum mlx4_protocol prot = (gid->raw[1] == 0x0e) ?
+ MLX4_PROT_IB_IPV4 : MLX4_PROT_IB_IPV6;
if (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
!!(mqp->flags &
MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
- MLX4_PROT_IB_IPV6, ®_id);
+ prot, ®_id);
if (err)
goto err_malloc;
err_add:
mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
- MLX4_PROT_IB_IPV6, reg_id);
+ prot, reg_id);
err_malloc:
kfree(ib_steering);
int err;
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
- u8 mac[6];
struct net_device *ndev;
struct mlx4_ib_gid_entry *ge;
u64 reg_id = 0;
+ enum mlx4_protocol prot = (gid->raw[1] == 0x0e) ?
+ MLX4_PROT_IB_IPV4 : MLX4_PROT_IB_IPV6;
if (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
}
err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
- MLX4_PROT_IB_IPV6, reg_id);
+ prot, reg_id);
if (err)
return err;
if (ndev)
dev_hold(ndev);
spin_unlock(&mdev->iboe.lock);
- rdma_get_mcast_mac((struct in6_addr *)gid, mac);
- if (ndev) {
- rtnl_lock();
- dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac);
- rtnl_unlock();
+ if (ndev)
dev_put(ndev);
- }
list_del(&ge->list);
kfree(ge);
} else
&dev_attr_board_id
};
-static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev)
-{
- memcpy(eui, dev->dev_addr, 3);
- memcpy(eui + 5, dev->dev_addr + 3, 3);
- if (vlan_id < 0x1000) {
- eui[3] = vlan_id >> 8;
- eui[4] = vlan_id & 0xff;
- } else {
- eui[3] = 0xff;
- eui[4] = 0xfe;
- }
- eui[0] ^= 2;
-}
-
static void update_gids_task(struct work_struct *work)
{
struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
MLX4_CMD_WRAPPED);
if (err)
pr_warn("set port command failed\n");
- else {
- memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
+ else
mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE);
- }
mlx4_free_cmd_mailbox(dev, mailbox);
kfree(gw);
}
-static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
+static void reset_gids_task(struct work_struct *work)
{
- struct net_device *ndev = dev->iboe.netdevs[port - 1];
- struct update_gid_work *work;
- struct net_device *tmp;
+ struct update_gid_work *gw =
+ container_of(work, struct update_gid_work, work);
+ struct mlx4_cmd_mailbox *mailbox;
+ union ib_gid *gids;
+ int err;
int i;
- u8 *hits;
- int ret;
- union ib_gid gid;
- int free;
- int found;
- int need_update = 0;
- u16 vid;
+ struct mlx4_dev *dev = gw->dev->dev;
- work = kzalloc(sizeof *work, GFP_ATOMIC);
- if (!work)
- return -ENOMEM;
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ pr_warn("reset gid table failed\n");
+ goto free;
+ }
- hits = kzalloc(128, GFP_ATOMIC);
- if (!hits) {
- ret = -ENOMEM;
- goto out;
+ gids = mailbox->buf;
+ memcpy(gids, gw->gids, sizeof(gw->gids));
+
+ for (i = 1; i < gw->dev->num_ports + 1; i++) {
+ if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, i) ==
+ IB_LINK_LAYER_ETHERNET) {
+ err = mlx4_cmd(dev, mailbox->dma,
+ MLX4_SET_PORT_GID_TABLE << 8 | i,
+ 1, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B,
+ MLX4_CMD_WRAPPED);
+ if (err)
+ pr_warn(KERN_WARNING
+ "set port %d command failed\n", i);
+ }
}
- rcu_read_lock();
- for_each_netdev_rcu(&init_net, tmp) {
- if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) {
- gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
- vid = rdma_vlan_dev_vlan_id(tmp);
- mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev);
- found = 0;
- free = -1;
- for (i = 0; i < 128; ++i) {
- if (free < 0 &&
- !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
- free = i;
- if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) {
- hits[i] = 1;
- found = 1;
- break;
- }
- }
+ mlx4_free_cmd_mailbox(dev, mailbox);
+free:
+ kfree(gw);
+}
- if (!found) {
- if (tmp == ndev &&
- (memcmp(&dev->iboe.gid_table[port - 1][0],
- &gid, sizeof gid) ||
- !memcmp(&dev->iboe.gid_table[port - 1][0],
- &zgid, sizeof gid))) {
- dev->iboe.gid_table[port - 1][0] = gid;
- ++need_update;
- hits[0] = 1;
- } else if (free >= 0) {
- dev->iboe.gid_table[port - 1][free] = gid;
- hits[free] = 1;
- ++need_update;
- }
+static int update_gid_table(struct mlx4_ib_dev *dev, int port,
+ union ib_gid *gid, int clear)
+{
+ struct update_gid_work *work;
+ int i;
+ int need_update = 0;
+ int free = -1;
+ int found = -1;
+ int max_gids;
+
+ max_gids = dev->dev->caps.gid_table_len[port];
+ for (i = 0; i < max_gids; ++i) {
+ if (!memcmp(&dev->iboe.gid_table[port - 1][i], gid,
+ sizeof(*gid)))
+ found = i;
+
+ if (clear) {
+ if (found >= 0) {
+ need_update = 1;
+ dev->iboe.gid_table[port - 1][found] = zgid;
+ break;
}
+ } else {
+ if (found >= 0)
+ break;
+
+ if (free < 0 &&
+ !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid,
+ sizeof(*gid)))
+ free = i;
}
}
- rcu_read_unlock();
- for (i = 0; i < 128; ++i)
- if (!hits[i]) {
- if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
- ++need_update;
- dev->iboe.gid_table[port - 1][i] = zgid;
- }
+ if (found == -1 && !clear && free >= 0) {
+ dev->iboe.gid_table[port - 1][free] = *gid;
+ need_update = 1;
+ }
- if (need_update) {
- memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids);
- INIT_WORK(&work->work, update_gids_task);
- work->port = port;
- work->dev = dev;
- queue_work(wq, &work->work);
- } else
- kfree(work);
+ if (!need_update)
+ return 0;
+
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return -ENOMEM;
+
+ memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof(work->gids));
+ INIT_WORK(&work->work, update_gids_task);
+ work->port = port;
+ work->dev = dev;
+ queue_work(wq, &work->work);
- kfree(hits);
return 0;
+}
-out:
- kfree(work);
- return ret;
+static int reset_gid_table(struct mlx4_ib_dev *dev)
+{
+ struct update_gid_work *work;
+
+
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return -ENOMEM;
+ memset(dev->iboe.gid_table, 0, sizeof(dev->iboe.gid_table));
+ memset(work->gids, 0, sizeof(work->gids));
+ INIT_WORK(&work->work, reset_gids_task);
+ work->dev = dev;
+ queue_work(wq, &work->work);
+ return 0;
}
-static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event)
+static int mlx4_ib_addr_event(int event, struct net_device *event_netdev,
+ struct mlx4_ib_dev *ibdev, union ib_gid *gid)
{
- switch (event) {
- case NETDEV_UP:
- case NETDEV_CHANGEADDR:
- update_ipv6_gids(dev, port, 0);
- break;
+ struct mlx4_ib_iboe *iboe;
+ int port = 0;
+ struct net_device *real_dev = rdma_vlan_dev_real_dev(event_netdev) ?
+ rdma_vlan_dev_real_dev(event_netdev) :
+ event_netdev;
+
+ if (event != NETDEV_DOWN && event != NETDEV_UP)
+ return 0;
+
+ if ((real_dev != event_netdev) &&
+ (event == NETDEV_DOWN) &&
+ rdma_link_local_addr((struct in6_addr *)gid))
+ return 0;
+
+ iboe = &ibdev->iboe;
+ spin_lock(&iboe->lock);
+
+ for (port = 1; port <= MLX4_MAX_PORTS; ++port)
+ if ((netif_is_bond_master(real_dev) &&
+ (real_dev == iboe->masters[port - 1])) ||
+ (!netif_is_bond_master(real_dev) &&
+ (real_dev == iboe->netdevs[port - 1])))
+ update_gid_table(ibdev, port, gid,
+ event == NETDEV_DOWN);
+
+ spin_unlock(&iboe->lock);
+ return 0;
- case NETDEV_DOWN:
- update_ipv6_gids(dev, port, 1);
- dev->iboe.netdevs[port - 1] = NULL;
- }
}
-static void netdev_added(struct mlx4_ib_dev *dev, int port)
+static u8 mlx4_ib_get_dev_port(struct net_device *dev,
+ struct mlx4_ib_dev *ibdev)
{
- update_ipv6_gids(dev, port, 0);
+ u8 port = 0;
+ struct mlx4_ib_iboe *iboe;
+ struct net_device *real_dev = rdma_vlan_dev_real_dev(dev) ?
+ rdma_vlan_dev_real_dev(dev) : dev;
+
+ iboe = &ibdev->iboe;
+ spin_lock(&iboe->lock);
+
+ for (port = 1; port <= MLX4_MAX_PORTS; ++port)
+ if ((netif_is_bond_master(real_dev) &&
+ (real_dev == iboe->masters[port - 1])) ||
+ (!netif_is_bond_master(real_dev) &&
+ (real_dev == iboe->netdevs[port - 1])))
+ break;
+
+ spin_unlock(&iboe->lock);
+
+ if ((port == 0) || (port > MLX4_MAX_PORTS))
+ return 0;
+ else
+ return port;
}
-static void netdev_removed(struct mlx4_ib_dev *dev, int port)
+static int mlx4_ib_inet_event(struct notifier_block *this, unsigned long event,
+ void *ptr)
{
- update_ipv6_gids(dev, port, 1);
+ struct mlx4_ib_dev *ibdev;
+ struct in_ifaddr *ifa = ptr;
+ union ib_gid gid;
+ struct net_device *event_netdev = ifa->ifa_dev->dev;
+
+ ipv6_addr_set_v4mapped(ifa->ifa_address, (struct in6_addr *)&gid);
+
+ ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet);
+
+ mlx4_ib_addr_event(event, event_netdev, ibdev, &gid);
+ return NOTIFY_DONE;
}
-static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static int mlx4_ib_inet6_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
- struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct mlx4_ib_dev *ibdev;
- struct net_device *oldnd;
+ struct inet6_ifaddr *ifa = ptr;
+ union ib_gid *gid = (union ib_gid *)&ifa->addr;
+ struct net_device *event_netdev = ifa->idev->dev;
+
+ ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet6);
+
+ mlx4_ib_addr_event(event, event_netdev, ibdev, gid);
+ return NOTIFY_DONE;
+}
+#endif
+
+static void mlx4_ib_get_dev_addr(struct net_device *dev,
+ struct mlx4_ib_dev *ibdev, u8 port)
+{
+ struct in_device *in_dev;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ struct inet6_dev *in6_dev;
+ union ib_gid *pgid;
+ struct inet6_ifaddr *ifp;
+#endif
+ union ib_gid gid;
+
+
+ if ((port == 0) || (port > MLX4_MAX_PORTS))
+ return;
+
+ /* IPv4 gids */
+ in_dev = in_dev_get(dev);
+ if (in_dev) {
+ for_ifa(in_dev) {
+ /*ifa->ifa_address;*/
+ ipv6_addr_set_v4mapped(ifa->ifa_address,
+ (struct in6_addr *)&gid);
+ update_gid_table(ibdev, port, &gid, 0);
+ }
+ endfor_ifa(in_dev);
+ in_dev_put(in_dev);
+ }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ /* IPv6 gids */
+ in6_dev = in6_dev_get(dev);
+ if (in6_dev) {
+ read_lock_bh(&in6_dev->lock);
+ list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
+ pgid = (union ib_gid *)&ifp->addr;
+ update_gid_table(ibdev, port, pgid, 0);
+ }
+ read_unlock_bh(&in6_dev->lock);
+ in6_dev_put(in6_dev);
+ }
+#endif
+}
+
+static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev)
+{
+ struct net_device *dev;
+
+ if (reset_gid_table(ibdev))
+ return -1;
+
+ read_lock(&dev_base_lock);
+
+ for_each_netdev(&init_net, dev) {
+ u8 port = mlx4_ib_get_dev_port(dev, ibdev);
+ if (port)
+ mlx4_ib_get_dev_addr(dev, ibdev, port);
+ }
+
+ read_unlock(&dev_base_lock);
+
+ return 0;
+}
+
+static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev)
+{
struct mlx4_ib_iboe *iboe;
int port;
- if (!net_eq(dev_net(dev), &init_net))
- return NOTIFY_DONE;
-
- ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
iboe = &ibdev->iboe;
spin_lock(&iboe->lock);
mlx4_foreach_ib_transport_port(port, ibdev->dev) {
- oldnd = iboe->netdevs[port - 1];
+ struct net_device *old_master = iboe->masters[port - 1];
+ struct net_device *curr_master;
iboe->netdevs[port - 1] =
mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
- if (oldnd != iboe->netdevs[port - 1]) {
- if (iboe->netdevs[port - 1])
- netdev_added(ibdev, port);
- else
- netdev_removed(ibdev, port);
+
+ if (iboe->netdevs[port - 1] &&
+ netif_is_bond_slave(iboe->netdevs[port - 1])) {
+ rtnl_lock();
+ iboe->masters[port - 1] = netdev_master_upper_dev_get(
+ iboe->netdevs[port - 1]);
+ rtnl_unlock();
}
- }
+ curr_master = iboe->masters[port - 1];
- if (dev == iboe->netdevs[0] ||
- (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0]))
- handle_en_event(ibdev, 1, event);
- else if (dev == iboe->netdevs[1]
- || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1]))
- handle_en_event(ibdev, 2, event);
+ /* if bonding is used it is possible that we add it to masters
+ only after IP address is assigned to the net bonding
+ interface */
+ if (curr_master && (old_master != curr_master))
+ mlx4_ib_get_dev_addr(curr_master, ibdev, port);
+ }
spin_unlock(&iboe->lock);
+}
+
+static int mlx4_ib_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct mlx4_ib_dev *ibdev;
+
+ if (!net_eq(dev_net(dev), &init_net))
+ return NOTIFY_DONE;
+
+ ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
+ mlx4_ib_scan_netdevs(ibdev);
return NOTIFY_DONE;
}
if (mlx4_ib_init_sriov(ibdev))
goto err_mad;
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
- iboe->nb.notifier_call = mlx4_ib_netdev_event;
- err = register_netdevice_notifier(&iboe->nb);
- if (err)
- goto err_sriov;
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) {
+ if (!iboe->nb.notifier_call) {
+ iboe->nb.notifier_call = mlx4_ib_netdev_event;
+ err = register_netdevice_notifier(&iboe->nb);
+ if (err) {
+ iboe->nb.notifier_call = NULL;
+ goto err_notif;
+ }
+ }
+ if (!iboe->nb_inet.notifier_call) {
+ iboe->nb_inet.notifier_call = mlx4_ib_inet_event;
+ err = register_inetaddr_notifier(&iboe->nb_inet);
+ if (err) {
+ iboe->nb_inet.notifier_call = NULL;
+ goto err_notif;
+ }
+ }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ if (!iboe->nb_inet6.notifier_call) {
+ iboe->nb_inet6.notifier_call = mlx4_ib_inet6_event;
+ err = register_inet6addr_notifier(&iboe->nb_inet6);
+ if (err) {
+ iboe->nb_inet6.notifier_call = NULL;
+ goto err_notif;
+ }
+ }
+#endif
+ mlx4_ib_scan_netdevs(ibdev);
+ mlx4_ib_init_gid_table(ibdev);
}
for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
return ibdev;
err_notif:
- if (unregister_netdevice_notifier(&ibdev->iboe.nb))
- pr_warn("failure unregistering notifier\n");
+ if (ibdev->iboe.nb.notifier_call) {
+ if (unregister_netdevice_notifier(&ibdev->iboe.nb))
+ pr_warn("failure unregistering notifier\n");
+ ibdev->iboe.nb.notifier_call = NULL;
+ }
+ if (ibdev->iboe.nb_inet.notifier_call) {
+ if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
+ pr_warn("failure unregistering notifier\n");
+ ibdev->iboe.nb_inet.notifier_call = NULL;
+ }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ if (ibdev->iboe.nb_inet6.notifier_call) {
+ if (unregister_inet6addr_notifier(&ibdev->iboe.nb_inet6))
+ pr_warn("failure unregistering notifier\n");
+ ibdev->iboe.nb_inet6.notifier_call = NULL;
+ }
+#endif
flush_workqueue(wq);
-err_sriov:
mlx4_ib_close_sriov(ibdev);
err_mad:
pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb.notifier_call = NULL;
}
+ if (ibdev->iboe.nb_inet.notifier_call) {
+ if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
+ pr_warn("failure unregistering notifier\n");
+ ibdev->iboe.nb_inet.notifier_call = NULL;
+ }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ if (ibdev->iboe.nb_inet6.notifier_call) {
+ if (unregister_inet6addr_notifier(&ibdev->iboe.nb_inet6))
+ pr_warn("failure unregistering notifier\n");
+ ibdev->iboe.nb_inet6.notifier_call = NULL;
+ }
+#endif
iounmap(ibdev->uar_map);
for (p = 0; p < ibdev->num_ports; ++p)
if (ibdev->counters[p] != -1)
projects / deliverable / linux.git / commitdiff
