Merge branches 'ehca', 'ipoib' and 'mlx4' into for-linus

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 39167a797f99f554b7a54ef94f989663811152e7..a91cb4c3fa5c233471e6054610db7ab234c95c61 100644 (file)
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1462,7 +1462,8 @@ static void __set_data_seg(struct mlx4_wqe_data_seg *dseg, struct ib_sge *sg)
 }
 
 static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr,
-                        struct mlx4_ib_qp *qp, unsigned *lso_seg_len)
+                        struct mlx4_ib_qp *qp, unsigned *lso_seg_len,
+                        __be32 *lso_hdr_sz)
 {
        unsigned halign = ALIGN(sizeof *wqe + wr->wr.ud.hlen, 16);
 
@@ -1479,12 +1480,8 @@ static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr,
 
        memcpy(wqe->header, wr->wr.ud.header, wr->wr.ud.hlen);
 
-       /* make sure LSO header is written before overwriting stamping */
-       wmb();
-
-       wqe->mss_hdr_size = cpu_to_be32((wr->wr.ud.mss - wr->wr.ud.hlen) << 16 |
-                                       wr->wr.ud.hlen);
-
+       *lso_hdr_sz  = cpu_to_be32((wr->wr.ud.mss - wr->wr.ud.hlen) << 16 |
+                                  wr->wr.ud.hlen);
        *lso_seg_len = halign;
        return 0;
 }
@@ -1518,6 +1515,9 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
        int uninitialized_var(stamp);
        int uninitialized_var(size);
        unsigned uninitialized_var(seglen);
+       __be32 dummy;
+       __be32 *lso_wqe;
+       __be32 uninitialized_var(lso_hdr_sz);
        int i;
 
        spin_lock_irqsave(&qp->sq.lock, flags);
@@ -1525,6 +1525,8 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
        ind = qp->sq_next_wqe;
 
        for (nreq = 0; wr; ++nreq, wr = wr->next) {
+               lso_wqe = &dummy;
+
                if (mlx4_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)) {
                        err = -ENOMEM;
                        *bad_wr = wr;
@@ -1606,11 +1608,12 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                        size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
 
                        if (wr->opcode == IB_WR_LSO) {
-                               err = build_lso_seg(wqe, wr, qp, &seglen);
+                               err = build_lso_seg(wqe, wr, qp, &seglen, &lso_hdr_sz);
                                if (unlikely(err)) {
                                        *bad_wr = wr;
                                        goto out;
                                }
+                               lso_wqe = (__be32 *) wqe;
                                wqe  += seglen;
                                size += seglen / 16;
                        }
@@ -1652,6 +1655,14 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                for (i = wr->num_sge - 1; i >= 0; --i, --dseg)
                        set_data_seg(dseg, wr->sg_list + i);
 
+               /*
+                * Possibly overwrite stamping in cacheline with LSO
+                * segment only after making sure all data segments
+                * are written.
+                */
+               wmb();
+               *lso_wqe = lso_hdr_sz;
+
                ctrl->fence_size = (wr->send_flags & IB_SEND_FENCE ?
                                    MLX4_WQE_CTRL_FENCE : 0) | size;
 
@@ -1686,7 +1697,6 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                        stamp_send_wqe(qp, stamp, size * 16);
                        ind = pad_wraparound(qp, ind);
                }
-
        }
 
 out:

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index dce0443f9d693d0396766b657d313169ef652245..0bd2a4ff08428dfae19de45d8f808a91f8ca384e 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -106,23 +106,17 @@ int ipoib_open(struct net_device *dev)
 
        ipoib_dbg(priv, "bringing up interface\n");
 
-       set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
+       if (!test_and_set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
+               napi_enable(&priv->napi);
 
        if (ipoib_pkey_dev_delay_open(dev))
                return 0;
 
-       napi_enable(&priv->napi);
+       if (ipoib_ib_dev_open(dev))
+               goto err_disable;
 
-       if (ipoib_ib_dev_open(dev)) {
-               napi_disable(&priv->napi);
-               return -EINVAL;
-       }
-
-       if (ipoib_ib_dev_up(dev)) {
-               ipoib_ib_dev_stop(dev, 1);
-               napi_disable(&priv->napi);
-               return -EINVAL;
-       }
+       if (ipoib_ib_dev_up(dev))
+               goto err_stop;
 
        if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
                struct ipoib_dev_priv *cpriv;
@@ -144,6 +138,15 @@ int ipoib_open(struct net_device *dev)
        netif_start_queue(dev);
 
        return 0;
+
+err_stop:
+       ipoib_ib_dev_stop(dev, 1);
+
+err_disable:
+       napi_disable(&priv->napi);
+       clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
+
+       return -EINVAL;
 }
 
 static int ipoib_stop(struct net_device *dev)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 59d02e0b8df168aa8698e56008bdfc5f518282bb..425e31112ed707d18b7acf1fc9938280dd137a2a 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -409,7 +409,7 @@ static int ipoib_mcast_join_complete(int status,
        }
 
        if (mcast->logcount++ < 20) {
-               if (status == -ETIMEDOUT) {
+               if (status == -ETIMEDOUT || status == -EAGAIN) {
                        ipoib_dbg_mcast(priv, "multicast join failed for %pI6, status %d\n",
                                        mcast->mcmember.mgid.raw, status);
                } else {

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 2cf1a40887180dec32e63a38bf173c0116646790..5a76a5510350b650c8de12c6614c755e45c691e4 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -61,6 +61,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 
        ppriv = netdev_priv(pdev);
 
+       rtnl_lock();
        mutex_lock(&ppriv->vlan_mutex);
 
        /*
@@ -111,7 +112,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
                goto device_init_failed;
        }
 
-       result = register_netdev(priv->dev);
+       result = register_netdevice(priv->dev);
        if (result) {
                ipoib_warn(priv, "failed to initialize; error %i", result);
                goto register_failed;
@@ -134,12 +135,13 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
        list_add_tail(&priv->list, &ppriv->child_intfs);
 
        mutex_unlock(&ppriv->vlan_mutex);
+       rtnl_unlock();
 
        return 0;
 
 sysfs_failed:
        ipoib_delete_debug_files(priv->dev);
-       unregister_netdev(priv->dev);
+       unregister_netdevice(priv->dev);
 
 register_failed:
        ipoib_dev_cleanup(priv->dev);
@@ -149,6 +151,7 @@ device_init_failed:
 
 err:
        mutex_unlock(&ppriv->vlan_mutex);
+       rtnl_unlock();
        return result;
 }
 
@@ -162,10 +165,11 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 
        ppriv = netdev_priv(pdev);
 
+       rtnl_lock();
        mutex_lock(&ppriv->vlan_mutex);
        list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
                if (priv->pkey == pkey) {
-                       unregister_netdev(priv->dev);
+                       unregister_netdevice(priv->dev);
                        ipoib_dev_cleanup(priv->dev);
                        list_del(&priv->list);
                        free_netdev(priv->dev);
@@ -175,6 +179,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
                }
        }
        mutex_unlock(&ppriv->vlan_mutex);
+       rtnl_unlock();
 
        return ret;
 }

diff --git a/drivers/net/mlx4/profile.c b/drivers/net/mlx4/profile.c
index 919fb9eb1b624af90e696b8a0c67418eec3c43f0..cebdf3243ca16cccb974b553d4e46b556fd0ac46 100644 (file)
--- a/drivers/net/mlx4/profile.c
+++ b/drivers/net/mlx4/profile.c
@@ -107,9 +107,9 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
        profile[MLX4_RES_AUXC].num    = request->num_qp;
        profile[MLX4_RES_SRQ].num     = request->num_srq;
        profile[MLX4_RES_CQ].num      = request->num_cq;
-       profile[MLX4_RES_EQ].num      = min(dev_cap->max_eqs,
-                                           dev_cap->reserved_eqs +
-                                           num_possible_cpus() + 1);
+       profile[MLX4_RES_EQ].num      = min_t(unsigned, dev_cap->max_eqs,
+                                             dev_cap->reserved_eqs +
+                                             num_possible_cpus() + 1);
        profile[MLX4_RES_DMPT].num    = request->num_mpt;
        profile[MLX4_RES_CMPT].num    = MLX4_NUM_CMPTS;
        profile[MLX4_RES_MTT].num     = request->num_mtt;