Merge from Linus' tree.

3 files changed, 40 insertions, 52 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c
index 18f0981eb0c..78152a8ad17 100644
--- a/drivers/infiniband/hw/mthca/mthca_eq.c
+++ b/drivers/infiniband/hw/mthca/mthca_eq.c
@@ -476,12 +476,8 @@ static int __devinit mthca_create_eq(struct mthca_dev *dev,
 	int i;
 	u8 status;
 
-	/* Make sure EQ size is aligned to a power of 2 size. */
-	for (i = 1; i < nent; i <<= 1)
-		; /* nothing */
-	nent = i;
-
-	eq->dev = dev;
+	eq->dev  = dev;
+	eq->nent = roundup_pow_of_two(max(nent, 2));
 
 	eq->page_list = kmalloc(npages * sizeof *eq->page_list,
 				GFP_KERNEL);
@@ -512,7 +508,7 @@ static int __devinit mthca_create_eq(struct mthca_dev *dev,
 		memset(eq->page_list[i].buf, 0, PAGE_SIZE);
 	}
 
-	for (i = 0; i < nent; ++i)
+	for (i = 0; i < eq->nent; ++i)
 		set_eqe_hw(get_eqe(eq, i));
 
 	eq->eqn = mthca_alloc(&dev->eq_table.alloc);
@@ -528,8 +524,6 @@ static int __devinit mthca_create_eq(struct mthca_dev *dev,
 	if (err)
 		goto err_out_free_eq;
 
-	eq->nent = nent;
-
 	memset(eq_context, 0, sizeof *eq_context);
 	eq_context->flags           = cpu_to_be32(MTHCA_EQ_STATUS_OK   |
 						  MTHCA_EQ_OWNER_HW    |
@@ -538,7 +532,7 @@ static int __devinit mthca_create_eq(struct mthca_dev *dev,
 	if (mthca_is_memfree(dev))
 		eq_context->flags  |= cpu_to_be32(MTHCA_EQ_STATE_ARBEL);
 
-	eq_context->logsize_usrpage = cpu_to_be32((ffs(nent) - 1) << 24);
+	eq_context->logsize_usrpage = cpu_to_be32((ffs(eq->nent) - 1) << 24);
 	if (mthca_is_memfree(dev)) {
 		eq_context->arbel_pd = cpu_to_be32(dev->driver_pd.pd_num);
 	} else {
@@ -569,7 +563,7 @@ static int __devinit mthca_create_eq(struct mthca_dev *dev,
 	dev->eq_table.arm_mask |= eq->eqn_mask;
 
 	mthca_dbg(dev, "Allocated EQ %d with %d entries\n",
-		  eq->eqn, nent);
+		  eq->eqn, eq->nent);
 
 	return err;
 
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index bcef06bf15e..5fa00669f9b 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -227,7 +227,6 @@ static void mthca_wq_init(struct mthca_wq *wq)
 	wq->last_comp = wq->max - 1;
 	wq->head      = 0;
 	wq->tail      = 0;
-	wq->last      = NULL;
 }
 
 void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
@@ -687,7 +686,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
 	}
 
 	if (attr_mask & IB_QP_TIMEOUT) {
-		qp_context->pri_path.ackto = attr->timeout;
+		qp_context->pri_path.ackto = attr->timeout << 3;
 		qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_ACK_TIMEOUT);
 	}
 
@@ -1103,6 +1102,9 @@ static int mthca_alloc_qp_common(struct mthca_dev *dev,
 		}
 	}
 
+	qp->sq.last = get_send_wqe(qp, qp->sq.max - 1);
+	qp->rq.last = get_recv_wqe(qp, qp->rq.max - 1);
+
 	return 0;
 }
 
@@ -1583,15 +1585,13 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 			goto out;
 		}
 
-		if (prev_wqe) {
-			((struct mthca_next_seg *) prev_wqe)->nda_op =
-				cpu_to_be32(((ind << qp->sq.wqe_shift) +
-					     qp->send_wqe_offset) |
-					    mthca_opcode[wr->opcode]);
-			wmb();
-			((struct mthca_next_seg *) prev_wqe)->ee_nds =
-				cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size);
-		}
+		((struct mthca_next_seg *) prev_wqe)->nda_op =
+			cpu_to_be32(((ind << qp->sq.wqe_shift) +
+				     qp->send_wqe_offset) |
+				    mthca_opcode[wr->opcode]);
+		wmb();
+		((struct mthca_next_seg *) prev_wqe)->ee_nds =
+			cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size);
 
 		if (!size0) {
 			size0 = size;
@@ -1688,13 +1688,11 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 
 		qp->wrid[ind] = wr->wr_id;
 
-		if (likely(prev_wqe)) {
-			((struct mthca_next_seg *) prev_wqe)->nda_op =
-				cpu_to_be32((ind << qp->rq.wqe_shift) | 1);
-			wmb();
-			((struct mthca_next_seg *) prev_wqe)->ee_nds =
-				cpu_to_be32(MTHCA_NEXT_DBD | size);
-		}
+		((struct mthca_next_seg *) prev_wqe)->nda_op =
+			cpu_to_be32((ind << qp->rq.wqe_shift) | 1);
+		wmb();
+		((struct mthca_next_seg *) prev_wqe)->ee_nds =
+			cpu_to_be32(MTHCA_NEXT_DBD | size);
 
 		if (!size0)
 			size0 = size;
@@ -1905,15 +1903,13 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 			goto out;
 		}
 
-		if (likely(prev_wqe)) {
-			((struct mthca_next_seg *) prev_wqe)->nda_op =
-				cpu_to_be32(((ind << qp->sq.wqe_shift) +
-					     qp->send_wqe_offset) |
-					    mthca_opcode[wr->opcode]);
-			wmb();
-			((struct mthca_next_seg *) prev_wqe)->ee_nds =
-				cpu_to_be32(MTHCA_NEXT_DBD | size);
-		}
+		((struct mthca_next_seg *) prev_wqe)->nda_op =
+			cpu_to_be32(((ind << qp->sq.wqe_shift) +
+				     qp->send_wqe_offset) |
+				    mthca_opcode[wr->opcode]);
+		wmb();
+		((struct mthca_next_seg *) prev_wqe)->ee_nds =
+			cpu_to_be32(MTHCA_NEXT_DBD | size);
 
 		if (!size0) {
 			size0 = size;
@@ -2127,5 +2123,6 @@ void __devexit mthca_cleanup_qp_table(struct mthca_dev *dev)
 	for (i = 0; i < 2; ++i)
 		mthca_CONF_SPECIAL_QP(dev, i, 0, &status);
 
+	mthca_array_cleanup(&dev->qp_table.qp, dev->limits.num_qps);
 	mthca_alloc_cleanup(&dev->qp_table.alloc);
 }
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index 75cd2d84ef1..18998d48c53 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -172,6 +172,8 @@ static int mthca_alloc_srq_buf(struct mthca_dev *dev, struct mthca_pd *pd,
 			scatter->lkey = cpu_to_be32(MTHCA_INVAL_LKEY);
 	}
 
+	srq->last = get_wqe(srq, srq->max - 1);
+
 	return 0;
 }
 
@@ -189,7 +191,6 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
 
 	srq->max      = attr->max_wr;
 	srq->max_gs   = attr->max_sge;
-	srq->last     = NULL;
 	srq->counter  = 0;
 
 	if (mthca_is_memfree(dev))
@@ -409,7 +410,7 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 			mthca_err(dev, "SRQ %06x full\n", srq->srqn);
 			err = -ENOMEM;
 			*bad_wr = wr;
-			return nreq;
+			break;
 		}
 
 		wqe       = get_wqe(srq, ind);
@@ -427,7 +428,7 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 			err = -EINVAL;
 			*bad_wr = wr;
 			srq->last = prev_wqe;
-			return nreq;
+			break;
 		}
 
 		for (i = 0; i < wr->num_sge; ++i) {
@@ -446,20 +447,16 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 			((struct mthca_data_seg *) wqe)->addr = 0;
 		}
 
-		if (likely(prev_wqe)) {
-			((struct mthca_next_seg *) prev_wqe)->nda_op =
-				cpu_to_be32((ind << srq->wqe_shift) | 1);
-			wmb();
-			((struct mthca_next_seg *) prev_wqe)->ee_nds =
-				cpu_to_be32(MTHCA_NEXT_DBD);
-		}
+		((struct mthca_next_seg *) prev_wqe)->nda_op =
+			cpu_to_be32((ind << srq->wqe_shift) | 1);
+		wmb();
+		((struct mthca_next_seg *) prev_wqe)->ee_nds =
+			cpu_to_be32(MTHCA_NEXT_DBD);
 
 		srq->wrid[ind]  = wr->wr_id;
 		srq->first_free = next_ind;
 	}
 
-	return nreq;
-
 	if (likely(nreq)) {
 		__be32 doorbell[2];
 
@@ -503,7 +500,7 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 			mthca_err(dev, "SRQ %06x full\n", srq->srqn);
 			err = -ENOMEM;
 			*bad_wr = wr;
-			return nreq;
+			break;
 		}
 
 		wqe       = get_wqe(srq, ind);
@@ -519,7 +516,7 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 		if (unlikely(wr->num_sge > srq->max_gs)) {
 			err = -EINVAL;
 			*bad_wr = wr;
-			return nreq;
+			break;
 		}
 
 		for (i = 0; i < wr->num_sge; ++i) {