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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (87 commits)
  mlx4_core: Fix section mismatches
  IPoIB: Allow setting policy to ignore multicast groups
  IB/mthca: Mark error paths as unlikely() in post_srq_recv functions
  IB/ipath: Minor fix to ordering of freeing and zeroing of tid pages.
  IB/ipath: Remove redundant link state checks
  IB/ipath: Fix IB_EVENT_PORT_ERR event
  IB/ipath: Better handling of unexpected GPIO interrupts
  IB/ipath: Maintain active time on all chips
  IB/ipath: Fix QHT7040 serial number check
  IB/ipath: Indicate a couple of chip bugs to userspace
  IB/ipath: iba6110 rev4 no longer needs recv header overrun workaround
  IB/ipath: Use counters in ipath_poll and cleanup interrupts in ipath_close
  IB/ipath: Remove duplicate copy of LMC
  IB/ipath: Add ability to set the LMC via the sysfs debugging interface
  IB/ipath: Optimize completion queue entry insertion and polling
  IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED
  IB/ipath: Generate flush CQE when QP is in error state
  IB/ipath: Remove redundant code
  IB/ipath: Future proof eeprom checksum code (contents reading)
  IB/ipath: UC RDMA WRITE with IMMEDIATE doesn't send the immediate
  ...

7 files changed, 93 insertions, 37 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 34c6128d2a34..6545fa798b12 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -86,6 +86,7 @@ enum {
         IPOIB_MCAST_STARTED       = 8,
         IPOIB_FLAG_NETIF_STOPPED  = 9,
         IPOIB_FLAG_ADMIN_CM       = 10,
+        IPOIB_FLAG_UMCAST         = 11,
 
         IPOIB_MAX_BACKOFF_SECONDS = 16,
 
@@ -113,7 +114,27 @@ struct ipoib_pseudoheader {
         u8  hwaddr[INFINIBAND_ALEN];
 };
 
-struct ipoib_mcast;
+/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
+struct ipoib_mcast {
+        struct ib_sa_mcmember_rec mcmember;
+        struct ib_sa_multicast   *mc;
+        struct ipoib_ah          *ah;
+
+        struct rb_node    rb_node;
+        struct list_head  list;
+
+        unsigned long created;
+        unsigned long backoff;
+
+        unsigned long flags;
+        unsigned char logcount;
+
+        struct list_head  neigh_list;
+
+        struct sk_buff_head pkt_queue;
+
+        struct net_device *dev;
+};
 
 struct ipoib_rx_buf {
         struct sk_buff *skb;
@@ -364,6 +385,7 @@ static inline void ipoib_put_ah(struct ipoib_ah *ah)
 
 int ipoib_open(struct net_device *dev);
 int ipoib_add_pkey_attr(struct net_device *dev);
+int ipoib_add_umcast_attr(struct net_device *dev);
 
 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
                 struct ipoib_ah *address, u32 qpn);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 1afd93cdd6bb..0a0dcb8fdfd1 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -810,14 +810,16 @@ static int ipoib_cm_rep_handler(struct ib_cm_id *cm_id, struct ib_cm_event *even
 static struct ib_qp *ipoib_cm_create_tx_qp(struct net_device *dev, struct ib_cq *cq)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
-        struct ib_qp_init_attr attr = {};
-        attr.recv_cq = priv->cq;
-        attr.srq = priv->cm.srq;
-        attr.cap.max_send_wr = ipoib_sendq_size;
-        attr.cap.max_send_sge = 1;
-        attr.sq_sig_type = IB_SIGNAL_ALL_WR;
-        attr.qp_type = IB_QPT_RC;
-        attr.send_cq = cq;
+        struct ib_qp_init_attr attr = {
+                .send_cq                = cq,
+                .recv_cq                = priv->cq,
+                .srq                    = priv->cm.srq,
+                .cap.max_send_wr        = ipoib_sendq_size,
+                .cap.max_send_sge       = 1,
+                .sq_sig_type            = IB_SIGNAL_ALL_WR,
+                .qp_type                = IB_QPT_RC,
+        };
+
         return ib_create_qp(priv->pd, &attr);
 }
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 0ec28c302fbf..1a77e79f6b43 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -553,6 +553,14 @@ void ipoib_drain_cq(struct net_device *dev)
         do {
                 n = ib_poll_cq(priv->cq, IPOIB_NUM_WC, priv->ibwc);
                 for (i = 0; i < n; ++i) {
+                        /*
+                         * Convert any successful completions to flush
+                         * errors to avoid passing packets up the
+                         * stack after bringing the device down.
+                         */
+                        if (priv->ibwc[i].status == IB_WC_SUCCESS)
+                                priv->ibwc[i].status = IB_WC_WR_FLUSH_ERR;
+
                         if (priv->ibwc[i].wr_id & IPOIB_CM_OP_SRQ)
                                 ipoib_cm_handle_rx_wc(dev, priv->ibwc + i);
                         else if (priv->ibwc[i].wr_id & IPOIB_OP_RECV)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 855c9deca8b7..e072f3c32ce6 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -473,9 +473,10 @@ static struct ipoib_path *path_rec_create(struct net_device *dev, void *gid)
         INIT_LIST_HEAD(&path->neigh_list);
 
         memcpy(path->pathrec.dgid.raw, gid, sizeof (union ib_gid));
-        path->pathrec.sgid      = priv->local_gid;
-        path->pathrec.pkey      = cpu_to_be16(priv->pkey);
-        path->pathrec.numb_path = 1;
+        path->pathrec.sgid          = priv->local_gid;
+        path->pathrec.pkey          = cpu_to_be16(priv->pkey);
+        path->pathrec.numb_path     = 1;
+        path->pathrec.traffic_class = priv->broadcast->mcmember.traffic_class;
 
         return path;
 }
@@ -496,6 +497,7 @@ static int path_rec_start(struct net_device *dev,
                                    IB_SA_PATH_REC_DGID          |
                                    IB_SA_PATH_REC_SGID          |
                                    IB_SA_PATH_REC_NUMB_PATH     |
+                                   IB_SA_PATH_REC_TRAFFIC_CLASS |
                                    IB_SA_PATH_REC_PKEY,
                                    1000, GFP_ATOMIC,
                                    path_rec_completion,
@@ -1015,6 +1017,37 @@ static ssize_t show_pkey(struct device *dev,
 }
 static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
 
+static ssize_t show_umcast(struct device *dev,
+                           struct device_attribute *attr, char *buf)
+{
+        struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
+
+        return sprintf(buf, "%d\n", test_bit(IPOIB_FLAG_UMCAST, &priv->flags));
+}
+
+static ssize_t set_umcast(struct device *dev,
+                          struct device_attribute *attr,
+                          const char *buf, size_t count)
+{
+        struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
+        unsigned long umcast_val = simple_strtoul(buf, NULL, 0);
+
+        if (umcast_val > 0) {
+                set_bit(IPOIB_FLAG_UMCAST, &priv->flags);
+                ipoib_warn(priv, "ignoring multicast groups joined directly "
+                                "by userspace\n");
+        } else
+                clear_bit(IPOIB_FLAG_UMCAST, &priv->flags);
+
+        return count;
+}
+static DEVICE_ATTR(umcast, S_IWUSR | S_IRUGO, show_umcast, set_umcast);
+
+int ipoib_add_umcast_attr(struct net_device *dev)
+{
+        return device_create_file(&dev->dev, &dev_attr_umcast);
+}
+
 static ssize_t create_child(struct device *dev,
                             struct device_attribute *attr,
                             const char *buf, size_t count)
@@ -1081,7 +1114,7 @@ static struct net_device *ipoib_add_port(const char *format,
         if (result) {
                 printk(KERN_WARNING "%s: ib_query_pkey port %d failed (ret = %d)\n",
                        hca->name, port, result);
-                goto alloc_mem_failed;
+                goto device_init_failed;
         }
 
         /*
@@ -1097,7 +1130,7 @@ static struct net_device *ipoib_add_port(const char *format,
         if (result) {
                 printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
                        hca->name, port, result);
-                goto alloc_mem_failed;
+                goto device_init_failed;
         } else
                 memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));
 
@@ -1132,6 +1165,8 @@ static struct net_device *ipoib_add_port(const char *format,
                 goto sysfs_failed;
         if (ipoib_add_pkey_attr(priv->dev))
                 goto sysfs_failed;
+        if (ipoib_add_umcast_attr(priv->dev))
+                goto sysfs_failed;
         if (device_create_file(&priv->dev->dev, &dev_attr_create_child))
                 goto sysfs_failed;
         if (device_create_file(&priv->dev->dev, &dev_attr_delete_child))
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 98e904a7f3e8..827820ec66d1 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -57,28 +57,6 @@ MODULE_PARM_DESC(mcast_debug_level,
 
 static DEFINE_MUTEX(mcast_mutex);
 
-/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
-struct ipoib_mcast {
-        struct ib_sa_mcmember_rec mcmember;
-        struct ib_sa_multicast   *mc;
-        struct ipoib_ah          *ah;
-
-        struct rb_node    rb_node;
-        struct list_head  list;
-
-        unsigned long created;
-        unsigned long backoff;
-
-        unsigned long flags;
-        unsigned char logcount;
-
-        struct list_head  neigh_list;
-
-        struct sk_buff_head pkt_queue;
-
-        struct net_device *dev;
-};
-
 struct ipoib_mcast_iter {
         struct net_device *dev;
         union ib_gid       mgid;
@@ -783,6 +761,7 @@ void ipoib_mcast_restart_task(struct work_struct *work)
         struct ipoib_mcast *mcast, *tmcast;
         LIST_HEAD(remove_list);
         unsigned long flags;
+        struct ib_sa_mcmember_rec rec;
 
         ipoib_dbg_mcast(priv, "restarting multicast task\n");
 
@@ -816,6 +795,14 @@ void ipoib_mcast_restart_task(struct work_struct *work)
                 if (!mcast || test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
                         struct ipoib_mcast *nmcast;
 
+                        /* ignore group which is directly joined by userspace */
+                        if (test_bit(IPOIB_FLAG_UMCAST, &priv->flags) &&
+                            !ib_sa_get_mcmember_rec(priv->ca, priv->port, &mgid, &rec)) {
+                                ipoib_dbg_mcast(priv, "ignoring multicast entry for mgid "
+                                                IPOIB_GID_FMT "\n", IPOIB_GID_ARG(mgid));
+                                continue;
+                        }
+
                         /* Not found or send-only group, let's add a new entry */
                         ipoib_dbg_mcast(priv, "adding multicast entry for mgid "
                                         IPOIB_GID_FMT "\n", IPOIB_GID_ARG(mgid));
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 563aeacf9e14..3c6e45db0ab5 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -185,7 +185,7 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
                 goto out_free_cq;
 
         init_attr.send_cq = priv->cq;
-        init_attr.recv_cq = priv->cq,
+        init_attr.recv_cq = priv->cq;
 
         priv->qp = ib_create_qp(priv->pd, &init_attr);
         if (IS_ERR(priv->qp)) {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 6762988439d1..293f5b892e3f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -119,6 +119,8 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
                 goto sysfs_failed;
         if (ipoib_add_pkey_attr(priv->dev))
                 goto sysfs_failed;
+        if (ipoib_add_umcast_attr(priv->dev))
+                goto sysfs_failed;
 
         if (device_create_file(&priv->dev->dev, &dev_attr_parent))
                 goto sysfs_failed;