Merge branch 'hfi1-2' into k.o/for-4.7

1 files changed, 24 insertions, 6 deletions

diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 0f12c211c385..5fa4d4d81ee0 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -397,6 +397,7 @@ static void free_qpn(struct rvt_qpn_table *qpt, u32 qpn)
 static void rvt_clear_mr_refs(struct rvt_qp *qp, int clr_sends)
 {
 	unsigned n;
+	struct rvt_dev_info *rdi = ib_to_rvt(qp->ibqp.device);
 
 	if (test_and_clear_bit(RVT_R_REWIND_SGE, &qp->r_aflags))
 		rvt_put_ss(&qp->s_rdma_read_sge);
@@ -431,7 +432,7 @@ static void rvt_clear_mr_refs(struct rvt_qp *qp, int clr_sends)
 	if (qp->ibqp.qp_type != IB_QPT_RC)
 		return;
 
-	for (n = 0; n < ARRAY_SIZE(qp->s_ack_queue); n++) {
+	for (n = 0; n < rvt_max_atomic(rdi); n++) {
 		struct rvt_ack_entry *e = &qp->s_ack_queue[n];
 
 		if (e->opcode == IB_OPCODE_RC_RDMA_READ_REQUEST &&
@@ -569,7 +570,12 @@ static void rvt_reset_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp,
 	qp->s_ssn = 1;
 	qp->s_lsn = 0;
 	qp->s_mig_state = IB_MIG_MIGRATED;
-	memset(qp->s_ack_queue, 0, sizeof(qp->s_ack_queue));
+	if (qp->s_ack_queue)
+		memset(
+			qp->s_ack_queue,
+			0,
+			rvt_max_atomic(rdi) *
+				sizeof(*qp->s_ack_queue));
 	qp->r_head_ack_queue = 0;
 	qp->s_tail_ack_queue = 0;
 	qp->s_num_rd_atomic = 0;
@@ -653,9 +659,9 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		if (gfp == GFP_NOIO)
 			swq = __vmalloc(
 				(init_attr->cap.max_send_wr + 1) * sz,
-				gfp, PAGE_KERNEL);
+				gfp | __GFP_ZERO, PAGE_KERNEL);
 		else
-			swq = vmalloc_node(
+			swq = vzalloc_node(
 				(init_attr->cap.max_send_wr + 1) * sz,
 				rdi->dparms.node);
 		if (!swq)
@@ -677,6 +683,16 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 			goto bail_swq;
 
 		RCU_INIT_POINTER(qp->next, NULL);
+		if (init_attr->qp_type == IB_QPT_RC) {
+			qp->s_ack_queue =
+				kzalloc_node(
+					sizeof(*qp->s_ack_queue) *
+					 rvt_max_atomic(rdi),
+					gfp,
+					rdi->dparms.node);
+			if (!qp->s_ack_queue)
+				goto bail_qp;
+		}
 
 		/*
 		 * Driver needs to set up it's private QP structure and do any
@@ -704,9 +720,9 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 				qp->r_rq.wq = __vmalloc(
 						sizeof(struct rvt_rwq) +
 						qp->r_rq.size * sz,
-						gfp, PAGE_KERNEL);
+						gfp | __GFP_ZERO, PAGE_KERNEL);
 			else
-				qp->r_rq.wq = vmalloc_node(
+				qp->r_rq.wq = vzalloc_node(
 						sizeof(struct rvt_rwq) +
 						qp->r_rq.size * sz,
 						rdi->dparms.node);
@@ -857,6 +873,7 @@ bail_driver_priv:
 	rdi->driver_f.qp_priv_free(rdi, qp);
 
 bail_qp:
+	kfree(qp->s_ack_queue);
 	kfree(qp);
 
 bail_swq:
@@ -1284,6 +1301,7 @@ int rvt_destroy_qp(struct ib_qp *ibqp)
 		vfree(qp->r_rq.wq);
 	vfree(qp->s_wq);
 	rdi->driver_f.qp_priv_free(rdi, qp);
+	kfree(qp->s_ack_queue);
 	kfree(qp);
 	return 0;
 }