Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Fix deadlock on RTNL between bcast join comp and ipoib_stop()
  RDMA/nes: Fix client side QP destroy
  IB/mlx4: Fix up fast register page list format
  mlx4_core: Set RAE and init mtt_sz field in FRMR MPT entries

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index f29dbb767e87c3c0f77b5f23c8c58de06e85c169..9559248f265b80090aeecd8c693059e9e43bdad0 100644 (file)
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1342,6 +1342,12 @@ static __be32 convert_access(int acc)
 static void set_fmr_seg(struct mlx4_wqe_fmr_seg *fseg, struct ib_send_wr *wr)
 {
        struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list);
+       int i;
+
+       for (i = 0; i < wr->wr.fast_reg.page_list_len; ++i)
+               wr->wr.fast_reg.page_list->page_list[i] =
+                       cpu_to_be64(wr->wr.fast_reg.page_list->page_list[i] |
+                                   MLX4_MTT_FLAG_PRESENT);
 
        fseg->flags             = convert_access(wr->wr.fast_reg.access_flags);
        fseg->mem_key           = cpu_to_be32(wr->wr.fast_reg.rkey);

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 9f0b964b2c9932af7567dcae6efc7d98c6c01728..499d3cf83e1f28e2ee263ed3e92e2fdb18d1f59b 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1956,13 +1956,6 @@ static int mini_cm_reject(struct nes_cm_core *cm_core,
                return ret;
        cleanup_retrans_entry(cm_node);
        cm_node->state = NES_CM_STATE_CLOSED;
-       ret = send_fin(cm_node, NULL);
-
-       if (cm_node->accept_pend) {
-               BUG_ON(!cm_node->listener);
-               atomic_dec(&cm_node->listener->pend_accepts_cnt);
-               BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
-       }
 
        ret = send_reset(cm_node, NULL);
        return ret;
@@ -2383,6 +2376,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
                        atomic_inc(&cm_disconnects);
                        cm_event.event = IW_CM_EVENT_DISCONNECT;
                        if (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET) {
+                               issued_disconnect_reset = 1;
                                cm_event.status = IW_CM_EVENT_STATUS_RESET;
                                nes_debug(NES_DBG_CM, "Generating a CM "
                                        "Disconnect Event (status reset) for "
@@ -2508,7 +2502,6 @@ static int nes_disconnect(struct nes_qp *nesqp, int abrupt)
                nes_debug(NES_DBG_CM, "Call close API\n");
 
                g_cm_core->api->close(g_cm_core, nesqp->cm_node);
-               nesqp->cm_node = NULL;
        }
 
        return ret;
@@ -2837,6 +2830,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
        cm_node->apbvt_set = 1;
        nesqp->cm_node = cm_node;
        cm_node->nesqp = nesqp;
+       nes_add_ref(&nesqp->ibqp);
 
        return 0;
 }
@@ -3167,7 +3161,6 @@ static void cm_event_connect_error(struct nes_cm_event *event)
        if (ret)
                printk(KERN_ERR "%s[%u] OFA CM event_handler returned, "
                        "ret=%d\n", __func__, __LINE__, ret);
-       nes_rem_ref(&nesqp->ibqp);
        cm_id->rem_ref(cm_id);
 
        rem_ref_cm_node(event->cm_node->cm_core, event->cm_node);

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index b0ffc9abe8c082fa1c32e112e8aa50d9e06bca83..05eb41b8ab631692fcd46686eedc0940443236c9 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -293,6 +293,7 @@ struct ipoib_dev_priv {
 
        struct delayed_work pkey_poll_task;
        struct delayed_work mcast_task;
+       struct work_struct carrier_on_task;
        struct work_struct flush_light;
        struct work_struct flush_normal;
        struct work_struct flush_heavy;
@@ -464,6 +465,7 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 void ipoib_dev_cleanup(struct net_device *dev);
 
 void ipoib_mcast_join_task(struct work_struct *work);
+void ipoib_mcast_carrier_on_task(struct work_struct *work);
 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
 
 void ipoib_mcast_restart_task(struct work_struct *work);

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 7e9e218738fa0f4be74741266e690d7c4211e6e0..1b1df5cc4113f7487e54876afd8aa5f44eaab456 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1075,6 +1075,7 @@ static void ipoib_setup(struct net_device *dev)
 
        INIT_DELAYED_WORK(&priv->pkey_poll_task, ipoib_pkey_poll);
        INIT_DELAYED_WORK(&priv->mcast_task,   ipoib_mcast_join_task);
+       INIT_WORK(&priv->carrier_on_task, ipoib_mcast_carrier_on_task);
        INIT_WORK(&priv->flush_light,   ipoib_ib_dev_flush_light);
        INIT_WORK(&priv->flush_normal,   ipoib_ib_dev_flush_normal);
        INIT_WORK(&priv->flush_heavy,   ipoib_ib_dev_flush_heavy);

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index ac33c8f3ea8580e5120dd98704cfbccb0ccd5c71..aae28620a6e5f01a3650ce59b5c8d35f65b4ca28 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -366,6 +366,21 @@ static int ipoib_mcast_sendonly_join(struct ipoib_mcast *mcast)
        return ret;
 }
 
+void ipoib_mcast_carrier_on_task(struct work_struct *work)
+{
+       struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv,
+                                                  carrier_on_task);
+
+       /*
+        * Take rtnl_lock to avoid racing with ipoib_stop() and
+        * turning the carrier back on while a device is being
+        * removed.
+        */
+       rtnl_lock();
+       netif_carrier_on(priv->dev);
+       rtnl_unlock();
+}
+
 static int ipoib_mcast_join_complete(int status,
                                     struct ib_sa_multicast *multicast)
 {
@@ -392,16 +407,12 @@ static int ipoib_mcast_join_complete(int status,
                                           &priv->mcast_task, 0);
                mutex_unlock(&mcast_mutex);
 
-               if (mcast == priv->broadcast) {
-                       /*
-                        * Take RTNL lock here to avoid racing with
-                        * ipoib_stop() and turning the carrier back
-                        * on while a device is being removed.
-                        */
-                       rtnl_lock();
-                       netif_carrier_on(dev);
-                       rtnl_unlock();
-               }
+               /*
+                * Defer carrier on work to ipoib_workqueue to avoid a
+                * deadlock on rtnl_lock here.
+                */
+               if (mcast == priv->broadcast)
+                       queue_work(ipoib_workqueue, &priv->carrier_on_task);
 
                return 0;
        }

diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
index 62071d9c4a557c61a38da5167cf2d017590b5ac7..d1dd5b48dbd1412bddf6321ebd3cceb89d18bacd 100644 (file)
--- a/drivers/net/mlx4/mr.c
+++ b/drivers/net/mlx4/mr.c
@@ -67,11 +67,10 @@ struct mlx4_mpt_entry {
 #define MLX4_MPT_FLAG_PHYSICAL     (1 <<  9)
 #define MLX4_MPT_FLAG_REGION       (1 <<  8)
 
-#define MLX4_MPT_PD_FLAG_FAST_REG   (1 << 26)
+#define MLX4_MPT_PD_FLAG_FAST_REG   (1 << 27)
+#define MLX4_MPT_PD_FLAG_RAE       (1 << 28)
 #define MLX4_MPT_PD_FLAG_EN_INV            (3 << 24)
 
-#define MLX4_MTT_FLAG_PRESENT          1
-
 #define MLX4_MPT_STATUS_SW             0xF0
 #define MLX4_MPT_STATUS_HW             0x00
 
@@ -348,7 +347,10 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
        if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) {
                /* fast register MR in free state */
                mpt_entry->flags    |= cpu_to_be32(MLX4_MPT_FLAG_FREE);
-               mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG);
+               mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG |
+                                                  MLX4_MPT_PD_FLAG_RAE);
+               mpt_entry->mtt_sz    = cpu_to_be32((1 << mr->mtt.order) *
+                                                  MLX4_MTT_ENTRY_PER_SEG);
        } else {
                mpt_entry->flags    |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS);
        }

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 655ea0d1ee1474d11a1dbd23c51bf5ef8f679fda..b2f944468313bb296bbdf83d7ff574615a588b1b 100644 (file)
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -141,6 +141,10 @@ enum {
        MLX4_STAT_RATE_OFFSET   = 5
 };
 
+enum {
+       MLX4_MTT_FLAG_PRESENT           = 1
+};
+
 static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
 {
        return (major << 32) | (minor << 16) | subminor;