These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 13 insertions, 23 deletions

diff --git a/kernel/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/kernel/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 2d13fd08c..d48c5bae7 100644
--- a/kernel/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/kernel/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -141,6 +141,7 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
 		.sq_sig_type = IB_SIGNAL_ALL_WR,
 		.qp_type     = IB_QPT_UD
 	};
+	struct ib_cq_init_attr cq_attr = {};
 
 	int ret, size;
 	int i;
@@ -151,12 +152,6 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
 		return -ENODEV;
 	}
 
-	priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
-	if (IS_ERR(priv->mr)) {
-		printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
-		goto out_free_pd;
-	}
-
 	/*
 	 * the various IPoIB tasks assume they will never race against
 	 * themselves, so always use a single thread workqueue
@@ -164,7 +159,7 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
 	priv->wq = create_singlethread_workqueue("ipoib_wq");
 	if (!priv->wq) {
 		printk(KERN_WARNING "ipoib: failed to allocate device WQ\n");
-		goto out_free_mr;
+		goto out_free_pd;
 	}
 
 	size = ipoib_recvq_size + 1;
@@ -179,14 +174,17 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
 		if (ret != -ENOSYS)
 			goto out_free_wq;
 
-	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
+	cq_attr.cqe = size;
+	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL,
+				     dev, &cq_attr);
 	if (IS_ERR(priv->recv_cq)) {
 		printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
 		goto out_cm_dev_cleanup;
 	}
 
+	cq_attr.cqe = ipoib_sendq_size;
 	priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
-				     dev, ipoib_sendq_size, 0);
+				     dev, &cq_attr);
 	if (IS_ERR(priv->send_cq)) {
 		printk(KERN_WARNING "%s: failed to create send CQ\n", ca->name);
 		goto out_free_recv_cq;
@@ -221,13 +219,13 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
 	priv->dev->dev_addr[3] = (priv->qp->qp_num      ) & 0xff;
 
 	for (i = 0; i < MAX_SKB_FRAGS + 1; ++i)
-		priv->tx_sge[i].lkey = priv->mr->lkey;
+		priv->tx_sge[i].lkey = priv->pd->local_dma_lkey;
 
-	priv->tx_wr.opcode	= IB_WR_SEND;
-	priv->tx_wr.sg_list	= priv->tx_sge;
-	priv->tx_wr.send_flags	= IB_SEND_SIGNALED;
+	priv->tx_wr.wr.opcode		= IB_WR_SEND;
+	priv->tx_wr.wr.sg_list		= priv->tx_sge;
+	priv->tx_wr.wr.send_flags	= IB_SEND_SIGNALED;
 
-	priv->rx_sge[0].lkey = priv->mr->lkey;
+	priv->rx_sge[0].lkey = priv->pd->local_dma_lkey;
 
 	priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
 	priv->rx_wr.num_sge = 1;
@@ -250,9 +248,6 @@ out_free_wq:
 	destroy_workqueue(priv->wq);
 	priv->wq = NULL;
 
-out_free_mr:
-	ib_dereg_mr(priv->mr);
-
 out_free_pd:
 	ib_dealloc_pd(priv->pd);
 
@@ -285,12 +280,7 @@ void ipoib_transport_dev_cleanup(struct net_device *dev)
 		priv->wq = NULL;
 	}
 
-	if (ib_dereg_mr(priv->mr))
-		ipoib_warn(priv, "ib_dereg_mr failed\n");
-
-	if (ib_dealloc_pd(priv->pd))
-		ipoib_warn(priv, "ib_dealloc_pd failed\n");
-
+	ib_dealloc_pd(priv->pd);
 }
 
 void ipoib_event(struct ib_event_handler *handler,