IB/mlx4: Add support for IBoE

Add support for IBoE to mlx4_ib.  The bulk of the code is handling the
new address vector fields; mlx4 needs the MAC address of a remote node
to include it in a WQE (for datagrams) or in the QP context (for
connected QPs).  Address resolution is done by assuming all unicast
GIDs are either link-local IPv6 addresses.

Multicast group attach/detach needs to update the NIC's multicast
filters; but since attaching a QP to a multicast group can be done
before the QP is bound to a port, for IBoE we need to keep track of
all multicast groups that a QP is attached too before it transitions
from INIT to RTR (since it does not have a port in the INIT state).

Signed-off-by: Eli Cohen <eli@mellanox.co.il>

[ Many things cleaned up and otherwise monkeyed with; hope I didn't
  introduce too many bugs.  - Roland ]

Signed-off-by: Roland Dreier <rolandd@cisco.com>

6 files changed, 714 insertions, 108 deletions

diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index 11a236f8d88..3bf3544c0aa 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -30,66 +30,153 @@
  * SOFTWARE.
  */
 
+#include <rdma/ib_addr.h>
+
 #include <linux/slab.h>
+#include <linux/inet.h>
+#include <linux/string.h>
 
 #include "mlx4_ib.h"
 
-struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
+int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
+                        u8 *mac, int *is_mcast, u8 port)
 {
-        struct mlx4_dev *dev = to_mdev(pd->device)->dev;
-        struct mlx4_ib_ah *ah;
+        struct in6_addr in6;
 
-        ah = kmalloc(sizeof *ah, GFP_ATOMIC);
-        if (!ah)
-                return ERR_PTR(-ENOMEM);
+        *is_mcast = 0;
 
-        memset(&ah->av, 0, sizeof ah->av);
+        memcpy(&in6, ah_attr->grh.dgid.raw, sizeof in6);
+        if (rdma_link_local_addr(&in6))
+                rdma_get_ll_mac(&in6, mac);
+        else if (rdma_is_multicast_addr(&in6)) {
+                rdma_get_mcast_mac(&in6, mac);
+                *is_mcast = 1;
+        } else
+                return -EINVAL;
 
-        ah->av.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
-        ah->av.g_slid  = ah_attr->src_path_bits;
-        ah->av.dlid    = cpu_to_be16(ah_attr->dlid);
-        if (ah_attr->static_rate) {
-                ah->av.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
-                while (ah->av.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
-                       !(1 << ah->av.stat_rate & dev->caps.stat_rate_support))
-                        --ah->av.stat_rate;
-        }
-        ah->av.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
+        return 0;
+}
+
+static struct ib_ah *create_ib_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr,
+                                  struct mlx4_ib_ah *ah)
+{
+        struct mlx4_dev *dev = to_mdev(pd->device)->dev;
+
+        ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
+        ah->av.ib.g_slid  = ah_attr->src_path_bits;
         if (ah_attr->ah_flags & IB_AH_GRH) {
-                ah->av.g_slid   |= 0x80;
-                ah->av.gid_index = ah_attr->grh.sgid_index;
-                ah->av.hop_limit = ah_attr->grh.hop_limit;
-                ah->av.sl_tclass_flowlabel |=
+                ah->av.ib.g_slid   |= 0x80;
+                ah->av.ib.gid_index = ah_attr->grh.sgid_index;
+                ah->av.ib.hop_limit = ah_attr->grh.hop_limit;
+                ah->av.ib.sl_tclass_flowlabel |=
                         cpu_to_be32((ah_attr->grh.traffic_class << 20) |
                                     ah_attr->grh.flow_label);
-                memcpy(ah->av.dgid, ah_attr->grh.dgid.raw, 16);
+                memcpy(ah->av.ib.dgid, ah_attr->grh.dgid.raw, 16);
+        }
+
+        ah->av.ib.dlid    = cpu_to_be16(ah_attr->dlid);
+        if (ah_attr->static_rate) {
+                ah->av.ib.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
+                while (ah->av.ib.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
+                       !(1 << ah->av.ib.stat_rate & dev->caps.stat_rate_support))
+                        --ah->av.ib.stat_rate;
         }
+        ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
 
         return &ah->ibah;
 }
 
+static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr,
+                                    struct mlx4_ib_ah *ah)
+{
+        struct mlx4_ib_dev *ibdev = to_mdev(pd->device);
+        struct mlx4_dev *dev = ibdev->dev;
+        u8 mac[6];
+        int err;
+        int is_mcast;
+
+        err = mlx4_ib_resolve_grh(ibdev, ah_attr, mac, &is_mcast, ah_attr->port_num);
+        if (err)
+                return ERR_PTR(err);
+
+        memcpy(ah->av.eth.mac, mac, 6);
+        ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
+        ah->av.eth.gid_index = ah_attr->grh.sgid_index;
+        if (ah_attr->static_rate) {
+                ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
+                while (ah->av.eth.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
+                       !(1 << ah->av.eth.stat_rate & dev->caps.stat_rate_support))
+                        --ah->av.eth.stat_rate;
+        }
+
+        /*
+         * HW requires multicast LID so we just choose one.
+         */
+        if (is_mcast)
+                ah->av.ib.dlid = cpu_to_be16(0xc000);
+
+        memcpy(ah->av.eth.dgid, ah_attr->grh.dgid.raw, 16);
+        ah->av.eth.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
+
+        return &ah->ibah;
+}
+
+struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
+{
+        struct mlx4_ib_ah *ah;
+        struct ib_ah *ret;
+
+        ah = kzalloc(sizeof *ah, GFP_ATOMIC);
+        if (!ah)
+                return ERR_PTR(-ENOMEM);
+
+        if (rdma_port_get_link_layer(pd->device, ah_attr->port_num) == IB_LINK_LAYER_ETHERNET) {
+                if (!(ah_attr->ah_flags & IB_AH_GRH)) {
+                        ret = ERR_PTR(-EINVAL);
+                } else {
+                        /*
+                         * TBD: need to handle the case when we get
+                         * called in an atomic context and there we
+                         * might sleep.  We don't expect this
+                         * currently since we're working with link
+                         * local addresses which we can translate
+                         * without going to sleep.
+                         */
+                        ret = create_iboe_ah(pd, ah_attr, ah);
+                }
+
+                if (IS_ERR(ret))
+                        kfree(ah);
+
+                return ret;
+        } else
+                return create_ib_ah(pd, ah_attr, ah); /* never fails */
+}
+
 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr)
 {
         struct mlx4_ib_ah *ah = to_mah(ibah);
+        enum rdma_link_layer ll;
 
         memset(ah_attr, 0, sizeof *ah_attr);
-        ah_attr->dlid          = be16_to_cpu(ah->av.dlid);
-        ah_attr->sl            = be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 28;
-        ah_attr->port_num      = be32_to_cpu(ah->av.port_pd) >> 24;
-        if (ah->av.stat_rate)
-                ah_attr->static_rate = ah->av.stat_rate - MLX4_STAT_RATE_OFFSET;
-        ah_attr->src_path_bits = ah->av.g_slid & 0x7F;
+        ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
+        ah_attr->port_num = be32_to_cpu(ah->av.ib.port_pd) >> 24;
+        ll = rdma_port_get_link_layer(ibah->device, ah_attr->port_num);
+        ah_attr->dlid = ll == IB_LINK_LAYER_INFINIBAND ? be16_to_cpu(ah->av.ib.dlid) : 0;
+        if (ah->av.ib.stat_rate)
+                ah_attr->static_rate = ah->av.ib.stat_rate - MLX4_STAT_RATE_OFFSET;
+        ah_attr->src_path_bits = ah->av.ib.g_slid & 0x7F;
 
         if (mlx4_ib_ah_grh_present(ah)) {
                 ah_attr->ah_flags = IB_AH_GRH;
 
                 ah_attr->grh.traffic_class =
-                        be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 20;
+                        be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 20;
                 ah_attr->grh.flow_label =
-                        be32_to_cpu(ah->av.sl_tclass_flowlabel) & 0xfffff;
-                ah_attr->grh.hop_limit  = ah->av.hop_limit;
-                ah_attr->grh.sgid_index = ah->av.gid_index;
-                memcpy(ah_attr->grh.dgid.raw, ah->av.dgid, 16);
+                        be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) & 0xfffff;
+                ah_attr->grh.hop_limit  = ah->av.ib.hop_limit;
+                ah_attr->grh.sgid_index = ah->av.ib.gid_index;
+                memcpy(ah_attr->grh.dgid.raw, ah->av.ib.dgid, 16);
         }
 
         return 0;
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index f38d5b11892..c9a8dd63b9e 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -311,19 +311,25 @@ int mlx4_ib_mad_init(struct mlx4_ib_dev *dev)
         struct ib_mad_agent *agent;
         int p, q;
         int ret;
+        enum rdma_link_layer ll;
 
-        for (p = 0; p < dev->num_ports; ++p)
+        for (p = 0; p < dev->num_ports; ++p) {
+                ll = rdma_port_get_link_layer(&dev->ib_dev, p + 1);
                 for (q = 0; q <= 1; ++q) {
-                        agent = ib_register_mad_agent(&dev->ib_dev, p + 1,
-                                                      q ? IB_QPT_GSI : IB_QPT_SMI,
-                                                      NULL, 0, send_handler,
-                                                      NULL, NULL);
-                        if (IS_ERR(agent)) {
-                                ret = PTR_ERR(agent);
-                                goto err;
-                        }
-                        dev->send_agent[p][q] = agent;
+                        if (ll == IB_LINK_LAYER_INFINIBAND) {
+                                agent = ib_register_mad_agent(&dev->ib_dev, p + 1,
+                                                              q ? IB_QPT_GSI : IB_QPT_SMI,
+                                                              NULL, 0, send_handler,
+                                                              NULL, NULL);
+                                if (IS_ERR(agent)) {
+                                        ret = PTR_ERR(agent);
+                                        goto err;
+                                }
+                                dev->send_agent[p][q] = agent;
+                        } else
+                                dev->send_agent[p][q] = NULL;
                 }
+        }
 
         return 0;
 
@@ -344,8 +350,10 @@ void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
         for (p = 0; p < dev->num_ports; ++p) {
                 for (q = 0; q <= 1; ++q) {
                         agent = dev->send_agent[p][q];
-                        dev->send_agent[p][q] = NULL;
-                        ib_unregister_mad_agent(agent);
+                        if (agent) {
+                                dev->send_agent[p][q] = NULL;
+                                ib_unregister_mad_agent(agent);
+                        }
                 }
 
                 if (dev->sm_ah[p])
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 4e94e360e43..e65db73fc27 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -35,9 +35,13 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/rtnetlink.h>
 
 #include <rdma/ib_smi.h>
 #include <rdma/ib_user_verbs.h>
+#include <rdma/ib_addr.h>
 
 #include <linux/mlx4/driver.h>
 #include <linux/mlx4/cmd.h>
@@ -58,6 +62,15 @@ static const char mlx4_ib_version[] =
         DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
         DRV_VERSION " (" DRV_RELDATE ")\n";
 
+struct update_gid_work {
+        struct work_struct      work;
+        union ib_gid            gids[128];
+        struct mlx4_ib_dev     *dev;
+        int                     port;
+};
+
+static struct workqueue_struct *wq;
+
 static void init_query_mad(struct ib_smp *mad)
 {
         mad->base_version  = 1;
@@ -154,28 +167,19 @@ out:
         return err;
 }
 
-static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
-                              struct ib_port_attr *props)
+static enum rdma_link_layer
+mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 {
-        struct ib_smp *in_mad  = NULL;
-        struct ib_smp *out_mad = NULL;
-        int err = -ENOMEM;
+        struct mlx4_dev *dev = to_mdev(device)->dev;
 
-        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
-        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
-        if (!in_mad || !out_mad)
-                goto out;
-
-        memset(props, 0, sizeof *props);
-
-        init_query_mad(in_mad);
-        in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
-        in_mad->attr_mod = cpu_to_be32(port);
-
-        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
-        if (err)
-                goto out;
+        return dev->caps.port_mask & (1 << (port_num - 1)) ?
+                IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
+}
 
+static int ib_link_query_port(struct ib_device *ibdev, u8 port,
+                              struct ib_port_attr *props,
+                              struct ib_smp *out_mad)
+{
         props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
         props->lmc              = out_mad->data[34] & 0x7;
         props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
@@ -196,6 +200,80 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
         props->max_vl_num       = out_mad->data[37] >> 4;
         props->init_type_reply  = out_mad->data[41] >> 4;
 
+        return 0;
+}
+
+static u8 state_to_phys_state(enum ib_port_state state)
+{
+        return state == IB_PORT_ACTIVE ? 5 : 3;
+}
+
+static int eth_link_query_port(struct ib_device *ibdev, u8 port,
+                               struct ib_port_attr *props,
+                               struct ib_smp *out_mad)
+{
+        struct mlx4_ib_iboe *iboe = &to_mdev(ibdev)->iboe;
+        struct net_device *ndev;
+        enum ib_mtu tmp;
+
+        props->active_width     = IB_WIDTH_4X;
+        props->active_speed     = 4;
+        props->port_cap_flags   = IB_PORT_CM_SUP;
+        props->gid_tbl_len      = to_mdev(ibdev)->dev->caps.gid_table_len[port];
+        props->max_msg_sz       = to_mdev(ibdev)->dev->caps.max_msg_sz;
+        props->pkey_tbl_len     = 1;
+        props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
+        props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
+        props->max_mtu          = IB_MTU_2048;
+        props->subnet_timeout   = 0;
+        props->max_vl_num       = out_mad->data[37] >> 4;
+        props->init_type_reply  = 0;
+        props->state            = IB_PORT_DOWN;
+        props->phys_state       = state_to_phys_state(props->state);
+        props->active_mtu       = IB_MTU_256;
+        spin_lock(&iboe->lock);
+        ndev = iboe->netdevs[port - 1];
+        if (!ndev)
+                goto out;
+
+        tmp = iboe_get_mtu(ndev->mtu);
+        props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
+
+        props->state            = netif_running(ndev) &&  netif_oper_up(ndev) ?
+                                        IB_PORT_ACTIVE : IB_PORT_DOWN;
+        props->phys_state       = state_to_phys_state(props->state);
+
+out:
+        spin_unlock(&iboe->lock);
+        return 0;
+}
+
+static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
+                              struct ib_port_attr *props)
+{
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        memset(props, 0, sizeof *props);
+
+        init_query_mad(in_mad);
+        in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+        in_mad->attr_mod = cpu_to_be32(port);
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
+                ib_link_query_port(ibdev, port, props, out_mad) :
+                eth_link_query_port(ibdev, port, props, out_mad);
+
 out:
         kfree(in_mad);
         kfree(out_mad);
@@ -203,8 +281,8 @@ out:
         return err;
 }
 
-static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
-                             union ib_gid *gid)
+static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
+                               union ib_gid *gid)
 {
         struct ib_smp *in_mad  = NULL;
         struct ib_smp *out_mad = NULL;
@@ -241,6 +319,25 @@ out:
         return err;
 }
 
+static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
+                          union ib_gid *gid)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibdev);
+
+        *gid = dev->iboe.gid_table[port - 1][index];
+
+        return 0;
+}
+
+static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
+                             union ib_gid *gid)
+{
+        if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
+                return __mlx4_ib_query_gid(ibdev, port, index, gid);
+        else
+                return iboe_query_gid(ibdev, port, index, gid);
+}
+
 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
                               u16 *pkey)
 {
@@ -289,6 +386,7 @@ static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
 {
         struct mlx4_cmd_mailbox *mailbox;
         int err;
+        u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
 
         mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
         if (IS_ERR(mailbox))
@@ -304,7 +402,7 @@ static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
                 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
         }
 
-        err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
+        err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
                        MLX4_CMD_TIME_CLASS_B);
 
         mlx4_free_cmd_mailbox(dev->dev, mailbox);
@@ -447,18 +545,132 @@ static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
         return 0;
 }
 
+static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
+{
+        struct mlx4_ib_qp *mqp = to_mqp(ibqp);
+        struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
+        struct mlx4_ib_gid_entry *ge;
+
+        ge = kzalloc(sizeof *ge, GFP_KERNEL);
+        if (!ge)
+                return -ENOMEM;
+
+        ge->gid = *gid;
+        if (mlx4_ib_add_mc(mdev, mqp, gid)) {
+                ge->port = mqp->port;
+                ge->added = 1;
+        }
+
+        mutex_lock(&mqp->mutex);
+        list_add_tail(&ge->list, &mqp->gid_list);
+        mutex_unlock(&mqp->mutex);
+
+        return 0;
+}
+
+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;
+
+        if (!mqp->port)
+                return 0;
+
+        spin_lock(&mdev->iboe.lock);
+        ndev = mdev->iboe.netdevs[mqp->port - 1];
+        if (ndev)
+                dev_hold(ndev);
+        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);
+        }
+
+        return ret;
+}
+
 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 {
-        return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
-                                     &to_mqp(ibqp)->mqp, gid->raw,
-                                     !!(to_mqp(ibqp)->flags &
-                                        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
+        int err;
+        struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
+        struct mlx4_ib_qp *mqp = to_mqp(ibqp);
+
+        err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, !!(mqp->flags &
+                                    MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
+        if (err)
+                return err;
+
+        err = add_gid_entry(ibqp, gid);
+        if (err)
+                goto err_add;
+
+        return 0;
+
+err_add:
+        mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw);
+        return err;
+}
+
+static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
+{
+        struct mlx4_ib_gid_entry *ge;
+        struct mlx4_ib_gid_entry *tmp;
+        struct mlx4_ib_gid_entry *ret = NULL;
+
+        list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
+                if (!memcmp(raw, ge->gid.raw, 16)) {
+                        ret = ge;
+                        break;
+                }
+        }
+
+        return ret;
 }
 
 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 {
-        return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
-                                     &to_mqp(ibqp)->mqp, gid->raw);
+        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;
+
+        err = mlx4_multicast_detach(mdev->dev,
+                                    &mqp->mqp, gid->raw);
+        if (err)
+                return err;
+
+        mutex_lock(&mqp->mutex);
+        ge = find_gid_entry(mqp, gid->raw);
+        if (ge) {
+                spin_lock(&mdev->iboe.lock);
+                ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
+                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();
+                        dev_put(ndev);
+                }
+                list_del(&ge->list);
+                kfree(ge);
+        } else
+                printk(KERN_WARNING "could not find mgid entry\n");
+
+        mutex_unlock(&mqp->mutex);
+
+        return 0;
 }
 
 static int init_node_data(struct mlx4_ib_dev *dev)
@@ -543,15 +755,143 @@ static struct device_attribute *mlx4_class_attributes[] = {
         &dev_attr_board_id
 };
 
+static void mlx4_addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
+{
+        memcpy(eui, dev->dev_addr, 3);
+        memcpy(eui + 5, dev->dev_addr + 3, 3);
+        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);
+        struct mlx4_cmd_mailbox *mailbox;
+        union ib_gid *gids;
+        int err;
+        struct mlx4_dev *dev = gw->dev->dev;
+        struct ib_event event;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox)) {
+                printk(KERN_WARNING "update gid table failed %ld\n", PTR_ERR(mailbox));
+                return;
+        }
+
+        gids = mailbox->buf;
+        memcpy(gids, gw->gids, sizeof gw->gids);
+
+        err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
+                       1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B);
+        if (err)
+                printk(KERN_WARNING "set port command failed\n");
+        else {
+                memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
+                event.device = &gw->dev->ib_dev;
+                event.element.port_num = gw->port;
+                event.event    = IB_EVENT_LID_CHANGE;
+                ib_dispatch_event(&event);
+        }
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        kfree(gw);
+}
+
+static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
+{
+        struct net_device *ndev = dev->iboe.netdevs[port - 1];
+        struct update_gid_work *work;
+
+        work = kzalloc(sizeof *work, GFP_ATOMIC);
+        if (!work)
+                return -ENOMEM;
+
+        if (!clear) {
+                mlx4_addrconf_ifid_eui48(&work->gids[0].raw[8], ndev);
+                work->gids[0].global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
+        }
+
+        INIT_WORK(&work->work, update_gids_task);
+        work->port = port;
+        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)
+{
+        switch (event) {
+        case NETDEV_UP:
+                update_ipv6_gids(dev, port, 0);
+                break;
+
+        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)
+{
+        update_ipv6_gids(dev, port, 0);
+}
+
+static void netdev_removed(struct mlx4_ib_dev *dev, int port)
+{
+        update_ipv6_gids(dev, port, 1);
+}
+
+static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
+                                void *ptr)
+{
+        struct net_device *dev = ptr;
+        struct mlx4_ib_dev *ibdev;
+        struct net_device *oldnd;
+        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];
+                iboe->netdevs[port - 1] =
+                        mlx4_get_protocol_dev(ibdev->dev, MLX4_PROTOCOL_EN, port);
+                if (oldnd != iboe->netdevs[port - 1]) {
+                        if (iboe->netdevs[port - 1])
+                                netdev_added(ibdev, port);
+                        else
+                                netdev_removed(ibdev, port);
+                }
+        }
+
+        if (dev == iboe->netdevs[0])
+                handle_en_event(ibdev, 1, event);
+        else if (dev == iboe->netdevs[1])
+                handle_en_event(ibdev, 2, event);
+
+        spin_unlock(&iboe->lock);
+
+        return NOTIFY_DONE;
+}
+
 static void *mlx4_ib_add(struct mlx4_dev *dev)
 {
         struct mlx4_ib_dev *ibdev;
         int num_ports = 0;
         int i;
+        int err;
+        struct mlx4_ib_iboe *iboe;
 
         printk_once(KERN_INFO "%s", mlx4_ib_version);
 
-        mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
+        mlx4_foreach_ib_transport_port(i, dev)
                 num_ports++;
 
         /* No point in registering a device with no ports... */
@@ -564,6 +904,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
                 return NULL;
         }
 
+        iboe = &ibdev->iboe;
+
         if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
                 goto err_dealloc;
 
@@ -612,6 +954,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 
         ibdev->ib_dev.query_device      = mlx4_ib_query_device;
         ibdev->ib_dev.query_port        = mlx4_ib_query_port;
+        ibdev->ib_dev.get_link_layer    = mlx4_ib_port_link_layer;
         ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
         ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
         ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
@@ -656,6 +999,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
         ibdev->ib_dev.unmap_fmr         = mlx4_ib_unmap_fmr;
         ibdev->ib_dev.dealloc_fmr       = mlx4_ib_fmr_dealloc;
 
+        spin_lock_init(&iboe->lock);
+
         if (init_node_data(ibdev))
                 goto err_map;
 
@@ -668,16 +1013,28 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
         if (mlx4_ib_mad_init(ibdev))
                 goto err_reg;
 
+        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_reg;
+        }
+
         for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
                 if (device_create_file(&ibdev->ib_dev.dev,
                                        mlx4_class_attributes[i]))
-                        goto err_reg;
+                        goto err_notif;
         }
 
         ibdev->ib_active = true;
 
         return ibdev;
 
+err_notif:
+        if (unregister_netdevice_notifier(&ibdev->iboe.nb))
+                printk(KERN_WARNING "failure unregistering notifier\n");
+        flush_workqueue(wq);
+
 err_reg:
         ib_unregister_device(&ibdev->ib_dev);
 
@@ -703,11 +1060,16 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
 
         mlx4_ib_mad_cleanup(ibdev);
         ib_unregister_device(&ibdev->ib_dev);
+        if (ibdev->iboe.nb.notifier_call) {
+                if (unregister_netdevice_notifier(&ibdev->iboe.nb))
+                        printk(KERN_WARNING "failure unregistering notifier\n");
+                ibdev->iboe.nb.notifier_call = NULL;
+        }
+        iounmap(ibdev->uar_map);
 
-        for (p = 1; p <= ibdev->num_ports; ++p)
+        mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
                 mlx4_CLOSE_PORT(dev, p);
 
-        iounmap(ibdev->uar_map);
         mlx4_uar_free(dev, &ibdev->priv_uar);
         mlx4_pd_free(dev, ibdev->priv_pdn);
         ib_dealloc_device(&ibdev->ib_dev);
@@ -747,19 +1109,33 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 }
 
 static struct mlx4_interface mlx4_ib_interface = {
-        .add    = mlx4_ib_add,
-        .remove = mlx4_ib_remove,
-        .event  = mlx4_ib_event
+        .add            = mlx4_ib_add,
+        .remove         = mlx4_ib_remove,
+        .event          = mlx4_ib_event,
+        .protocol       = MLX4_PROTOCOL_IB
 };
 
 static int __init mlx4_ib_init(void)
 {
-        return mlx4_register_interface(&mlx4_ib_interface);
+        int err;
+
+        wq = create_singlethread_workqueue("mlx4_ib");
+        if (!wq)
+                return -ENOMEM;
+
+        err = mlx4_register_interface(&mlx4_ib_interface);
+        if (err) {
+                destroy_workqueue(wq);
+                return err;
+        }
+
+        return 0;
 }
 
 static void __exit mlx4_ib_cleanup(void)
 {
         mlx4_unregister_interface(&mlx4_ib_interface);
+        destroy_workqueue(wq);
 }
 
 module_init(mlx4_ib_init);
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 3486d7675e5..2a322f21049 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -112,6 +112,13 @@ enum mlx4_ib_qp_flags {
         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK     = 1 << 1,
 };
 
+struct mlx4_ib_gid_entry {
+        struct list_head        list;
+        union ib_gid            gid;
+        int                     added;
+        u8                      port;
+};
+
 struct mlx4_ib_qp {
         struct ib_qp            ibqp;
         struct mlx4_qp          mqp;
@@ -138,6 +145,8 @@ struct mlx4_ib_qp {
         u8                      resp_depth;
         u8                      sq_no_prefetch;
         u8                      state;
+        int                     mlx_type;
+        struct list_head        gid_list;
 };
 
 struct mlx4_ib_srq {
@@ -157,7 +166,14 @@ struct mlx4_ib_srq {
 
 struct mlx4_ib_ah {
         struct ib_ah            ibah;
-        struct mlx4_av          av;
+        union mlx4_ext_av       av;
+};
+
+struct mlx4_ib_iboe {
+        spinlock_t              lock;
+        struct net_device      *netdevs[MLX4_MAX_PORTS];
+        struct notifier_block   nb;
+        union ib_gid            gid_table[MLX4_MAX_PORTS][128];
 };
 
 struct mlx4_ib_dev {
@@ -176,6 +192,7 @@ struct mlx4_ib_dev {
 
         struct mutex            cap_mask_mutex;
         bool                    ib_active;
+        struct mlx4_ib_iboe     iboe;
 };
 
 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
@@ -314,9 +331,20 @@ int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
 
+int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
+                        u8 *mac, int *is_mcast, u8 port);
+
 static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 {
-        return !!(ah->av.g_slid & 0x80);
+        u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
+
+        if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
+                return 1;
+
+        return !!(ah->av.ib.g_slid & 0x80);
 }
 
+int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
+                   union ib_gid *gid);
+
 #endif /* MLX4_IB_H */
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index bb1277c8fbf..17f60fe6e5b 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -33,6 +33,7 @@
 
 #include <linux/log2.h>
 #include <linux/slab.h>
+#include <linux/netdevice.h>
 
 #include <rdma/ib_cache.h>
 #include <rdma/ib_pack.h>
@@ -48,17 +49,25 @@ enum {
 
 enum {
         MLX4_IB_DEFAULT_SCHED_QUEUE     = 0x83,
-        MLX4_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f
+        MLX4_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f,
+        MLX4_IB_LINK_TYPE_IB            = 0,
+        MLX4_IB_LINK_TYPE_ETH           = 1
 };
 
 enum {
         /*
-         * Largest possible UD header: send with GRH and immediate data.
+         * Largest possible UD header: send with GRH and immediate
+         * data plus 14 bytes for an Ethernet header.  (LRH would only
+         * use 8 bytes, so Ethernet is the biggest case)
          */
-        MLX4_IB_UD_HEADER_SIZE          = 72,
+        MLX4_IB_UD_HEADER_SIZE          = 78,
         MLX4_IB_LSO_HEADER_SPARE        = 128,
 };
 
+enum {
+        MLX4_IB_IBOE_ETHERTYPE          = 0x8915
+};
+
 struct mlx4_ib_sqp {
         struct mlx4_ib_qp       qp;
         int                     pkey_index;
@@ -462,6 +471,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
         mutex_init(&qp->mutex);
         spin_lock_init(&qp->sq.lock);
         spin_lock_init(&qp->rq.lock);
+        INIT_LIST_HEAD(&qp->gid_list);
 
         qp->state        = IB_QPS_RESET;
         if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
@@ -649,6 +659,16 @@ static void mlx4_ib_unlock_cqs(struct mlx4_ib_cq *send_cq, struct mlx4_ib_cq *re
         }
 }
 
+static void del_gid_entries(struct mlx4_ib_qp *qp)
+{
+        struct mlx4_ib_gid_entry *ge, *tmp;
+
+        list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
+                list_del(&ge->list);
+                kfree(ge);
+        }
+}
+
 static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
                               int is_user)
 {
@@ -695,6 +715,8 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
                 if (!qp->ibqp.srq)
                         mlx4_db_free(dev->dev, &qp->db);
         }
+
+        del_gid_entries(qp);
 }
 
 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
@@ -852,6 +874,12 @@ static void mlx4_set_sched(struct mlx4_qp_path *path, u8 port)
 static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
                          struct mlx4_qp_path *path, u8 port)
 {
+        int err;
+        int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port) ==
+                IB_LINK_LAYER_ETHERNET;
+        u8 mac[6];
+        int is_mcast;
+
         path->grh_mylmc     = ah->src_path_bits & 0x7f;
         path->rlid          = cpu_to_be16(ah->dlid);
         if (ah->static_rate) {
@@ -882,9 +910,35 @@ static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
         path->sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE |
                 ((port - 1) << 6) | ((ah->sl & 0xf) << 2);
 
+        if (is_eth) {
+                if (!(ah->ah_flags & IB_AH_GRH))
+                        return -1;
+
+                err = mlx4_ib_resolve_grh(dev, ah, mac, &is_mcast, port);
+                if (err)
+                        return err;
+
+                memcpy(path->dmac, mac, 6);
+                path->ackto = MLX4_IB_LINK_TYPE_ETH;
+                /* use index 0 into MAC table for IBoE */
+                path->grh_mylmc &= 0x80;
+        }
+
         return 0;
 }
 
+static void update_mcg_macs(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
+{
+        struct mlx4_ib_gid_entry *ge, *tmp;
+
+        list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
+                if (!ge->added && mlx4_ib_add_mc(dev, qp, &ge->gid)) {
+                        ge->added = 1;
+                        ge->port = qp->port;
+                }
+        }
+}
+
 static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
                                const struct ib_qp_attr *attr, int attr_mask,
                                enum ib_qp_state cur_state, enum ib_qp_state new_state)
@@ -980,7 +1034,7 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
         }
 
         if (attr_mask & IB_QP_TIMEOUT) {
-                context->pri_path.ackto = attr->timeout << 3;
+                context->pri_path.ackto |= attr->timeout << 3;
                 optpar |= MLX4_QP_OPTPAR_ACK_TIMEOUT;
         }
 
@@ -1118,8 +1172,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
                 qp->atomic_rd_en = attr->qp_access_flags;
         if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
                 qp->resp_depth = attr->max_dest_rd_atomic;
-        if (attr_mask & IB_QP_PORT)
+        if (attr_mask & IB_QP_PORT) {
                 qp->port = attr->port_num;
+                update_mcg_macs(dev, qp);
+        }
         if (attr_mask & IB_QP_ALT_PATH)
                 qp->alt_port = attr->alt_port_num;
 
@@ -1226,35 +1282,45 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
         int header_size;
         int spc;
         int i;
+        int is_eth;
+        int is_grh;
 
         send_size = 0;
         for (i = 0; i < wr->num_sge; ++i)
                 send_size += wr->sg_list[i].length;
 
-        ib_ud_header_init(send_size, 1, 0, mlx4_ib_ah_grh_present(ah), 0, &sqp->ud_header);
+        is_eth = rdma_port_get_link_layer(sqp->qp.ibqp.device, sqp->qp.port) == IB_LINK_LAYER_ETHERNET;
+        is_grh = mlx4_ib_ah_grh_present(ah);
+        ib_ud_header_init(send_size, !is_eth, is_eth, is_grh, 0, &sqp->ud_header);
+
+        if (!is_eth) {
+                sqp->ud_header.lrh.service_level =
+                        be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
+                sqp->ud_header.lrh.destination_lid = ah->av.ib.dlid;
+                sqp->ud_header.lrh.source_lid = cpu_to_be16(ah->av.ib.g_slid & 0x7f);
+        }
 
-        sqp->ud_header.lrh.service_level   =
-                be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 28;
-        sqp->ud_header.lrh.destination_lid = ah->av.dlid;
-        sqp->ud_header.lrh.source_lid      = cpu_to_be16(ah->av.g_slid & 0x7f);
-        if (mlx4_ib_ah_grh_present(ah)) {
+        if (is_grh) {
                 sqp->ud_header.grh.traffic_class =
-                        (be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 20) & 0xff;
+                        (be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 20) & 0xff;
                 sqp->ud_header.grh.flow_label    =
-                        ah->av.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
-                sqp->ud_header.grh.hop_limit     = ah->av.hop_limit;
-                ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.port_pd) >> 24,
-                                  ah->av.gid_index, &sqp->ud_header.grh.source_gid);
+                        ah->av.ib.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
+                sqp->ud_header.grh.hop_limit     = ah->av.ib.hop_limit;
+                ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.ib.port_pd) >> 24,
+                                  ah->av.ib.gid_index, &sqp->ud_header.grh.source_gid);
                 memcpy(sqp->ud_header.grh.destination_gid.raw,
-                       ah->av.dgid, 16);
+                       ah->av.ib.dgid, 16);
         }
 
         mlx->flags &= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
-        mlx->flags |= cpu_to_be32((!sqp->qp.ibqp.qp_num ? MLX4_WQE_MLX_VL15 : 0) |
-                                  (sqp->ud_header.lrh.destination_lid ==
-                                   IB_LID_PERMISSIVE ? MLX4_WQE_MLX_SLR : 0) |
-                                  (sqp->ud_header.lrh.service_level << 8));
-        mlx->rlid   = sqp->ud_header.lrh.destination_lid;
+
+        if (!is_eth) {
+                mlx->flags |= cpu_to_be32((!sqp->qp.ibqp.qp_num ? MLX4_WQE_MLX_VL15 : 0) |
+                                          (sqp->ud_header.lrh.destination_lid ==
+                                           IB_LID_PERMISSIVE ? MLX4_WQE_MLX_SLR : 0) |
+                                          (sqp->ud_header.lrh.service_level << 8));
+                mlx->rlid = sqp->ud_header.lrh.destination_lid;
+        }
 
         switch (wr->opcode) {
         case IB_WR_SEND:
@@ -1270,9 +1336,21 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
                 return -EINVAL;
         }
 
-        sqp->ud_header.lrh.virtual_lane    = !sqp->qp.ibqp.qp_num ? 15 : 0;
-        if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
-                sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
+        if (is_eth) {
+                u8 *smac;
+
+                memcpy(sqp->ud_header.eth.dmac_h, ah->av.eth.mac, 6);
+                /* FIXME: cache smac value? */
+                smac = to_mdev(sqp->qp.ibqp.device)->iboe.netdevs[sqp->qp.port - 1]->dev_addr;
+                memcpy(sqp->ud_header.eth.smac_h, smac, 6);
+                if (!memcmp(sqp->ud_header.eth.smac_h, sqp->ud_header.eth.dmac_h, 6))
+                        mlx->flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);
+                sqp->ud_header.eth.type = cpu_to_be16(MLX4_IB_IBOE_ETHERTYPE);
+        } else {
+                sqp->ud_header.lrh.virtual_lane    = !sqp->qp.ibqp.qp_num ? 15 : 0;
+                if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
+                        sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
+        }
         sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
         if (!sqp->qp.ibqp.qp_num)
                 ib_get_cached_pkey(ib_dev, sqp->qp.port, sqp->pkey_index, &pkey);
@@ -1434,6 +1512,8 @@ static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg,
         memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av));
         dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn);
         dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
+        dseg->vlan = to_mah(wr->wr.ud.ah)->av.eth.vlan;
+        memcpy(dseg->mac, to_mah(wr->wr.ud.ah)->av.eth.mac, 6);
 }
 
 static void set_mlx_icrc_seg(void *dseg)
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 47e163ad3d1..ca5645c43f6 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -374,6 +374,27 @@ struct mlx4_av {
         u8                      dgid[16];
 };
 
+struct mlx4_eth_av {
+        __be32          port_pd;
+        u8              reserved1;
+        u8              smac_idx;
+        u16             reserved2;
+        u8              reserved3;
+        u8              gid_index;
+        u8              stat_rate;
+        u8              hop_limit;
+        __be32          sl_tclass_flowlabel;
+        u8              dgid[16];
+        u32             reserved4[2];
+        __be16          vlan;
+        u8              mac[6];
+};
+
+union mlx4_ext_av {
+        struct mlx4_av          ib;
+        struct mlx4_eth_av      eth;
+};
+
 struct mlx4_dev {
         struct pci_dev         *pdev;
         unsigned long           flags;
@@ -402,6 +423,12 @@ struct mlx4_init_port_param {
                 if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \
                      ~(dev)->caps.port_mask) & 1 << ((port) - 1))
 
+#define mlx4_foreach_ib_transport_port(port, dev)                       \
+        for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)     \
+                if (((dev)->caps.port_mask & 1 << ((port) - 1)) ||      \
+                    ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
+
+
 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
                    struct mlx4_buf *buf);
 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);