Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 68 insertions, 62 deletions

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 7b445df6a66..75d30562930 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -163,7 +163,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 	props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
 	props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 					   props->max_mcast_grp;
-	props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
+	props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
 
 out:
 	kfree(in_mad);
@@ -182,12 +182,27 @@ mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 }
 
 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
-			      struct ib_port_attr *props,
-			      struct ib_smp *in_mad,
-			      struct ib_smp *out_mad)
+			      struct ib_port_attr *props)
 {
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
 	int ext_active_speed;
-	int err;
+	int err = -ENOMEM;
+
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+	if (!in_mad || !out_mad)
+		goto out;
+
+	init_query_mad(in_mad);
+	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+	in_mad->attr_mod = cpu_to_be32(port);
+
+	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL,
+				in_mad, out_mad);
+	if (err)
+		goto out;
+
 
 	props->lid		= be16_to_cpup((__be16 *) (out_mad->data + 16));
 	props->lmc		= out_mad->data[34] & 0x7;
@@ -215,34 +230,33 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 
 		switch (ext_active_speed) {
 		case 1:
-			props->active_speed = 16; /* FDR */
+			props->active_speed = IB_SPEED_FDR;
 			break;
 		case 2:
-			props->active_speed = 32; /* EDR */
+			props->active_speed = IB_SPEED_EDR;
 			break;
 		}
 	}
 
 	/* If reported active speed is QDR, check if is FDR-10 */
-	if (props->active_speed == 4) {
-		if (to_mdev(ibdev)->dev->caps.ext_port_cap[port] &
-		    MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {
-			init_query_mad(in_mad);
-			in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
-			in_mad->attr_mod = cpu_to_be32(port);
-
-			err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
-					   NULL, NULL, in_mad, out_mad);
-			if (err)
-				return err;
+	if (props->active_speed == IB_SPEED_QDR) {
+		init_query_mad(in_mad);
+		in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
+		in_mad->attr_mod = cpu_to_be32(port);
 
-			/* Checking LinkSpeedActive for FDR-10 */
-			if (out_mad->data[15] & 0x1)
-				props->active_speed = 8;
-		}
-	}
+		err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
+				   NULL, NULL, in_mad, out_mad);
+		if (err)
+			return err;
 
-	return 0;
+		/* Checking LinkSpeedActive for FDR-10 */
+		if (out_mad->data[15] & 0x1)
+			props->active_speed = IB_SPEED_FDR10;
+	}
+out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
 }
 
 static u8 state_to_phys_state(enum ib_port_state state)
@@ -251,32 +265,42 @@ static u8 state_to_phys_state(enum ib_port_state state)
 }
 
 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
-			       struct ib_port_attr *props,
-			       struct ib_smp *out_mad)
+			       struct ib_port_attr *props)
 {
-	struct mlx4_ib_iboe *iboe = &to_mdev(ibdev)->iboe;
+
+	struct mlx4_ib_dev *mdev = to_mdev(ibdev);
+	struct mlx4_ib_iboe *iboe = &mdev->iboe;
 	struct net_device *ndev;
 	enum ib_mtu tmp;
+	struct mlx4_cmd_mailbox *mailbox;
+	int err = 0;
+
+	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
+	if (IS_ERR(mailbox))
+		return PTR_ERR(mailbox);
+
+	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
+			   MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
+			   MLX4_CMD_WRAPPED);
+	if (err)
+		goto out;
 
-	props->active_width	= IB_WIDTH_1X;
-	props->active_speed	= 4;
+	props->active_width	=  (((u8 *)mailbox->buf)[5] == 0x40) ?
+						IB_WIDTH_4X : IB_WIDTH_1X;
+	props->active_speed	= IB_SPEED_QDR;
 	props->port_cap_flags	= IB_PORT_CM_SUP;
-	props->gid_tbl_len	= to_mdev(ibdev)->dev->caps.gid_table_len[port];
-	props->max_msg_sz	= to_mdev(ibdev)->dev->caps.max_msg_sz;
+	props->gid_tbl_len	= mdev->dev->caps.gid_table_len[port];
+	props->max_msg_sz	= mdev->dev->caps.max_msg_sz;
 	props->pkey_tbl_len	= 1;
-	props->bad_pkey_cntr	= be16_to_cpup((__be16 *) (out_mad->data + 46));
-	props->qkey_viol_cntr	= be16_to_cpup((__be16 *) (out_mad->data + 48));
 	props->max_mtu		= IB_MTU_4096;
-	props->subnet_timeout	= 0;
-	props->max_vl_num	= out_mad->data[37] >> 4;
-	props->init_type_reply	= 0;
+	props->max_vl_num	= 2;
 	props->state		= IB_PORT_DOWN;
 	props->phys_state	= state_to_phys_state(props->state);
 	props->active_mtu	= IB_MTU_256;
 	spin_lock(&iboe->lock);
 	ndev = iboe->netdevs[port - 1];
 	if (!ndev)
-		goto out;
+		goto out_unlock;
 
 	tmp = iboe_get_mtu(ndev->mtu);
 	props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
@@ -284,41 +308,23 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port,
 	props->state		= (netif_running(ndev) && netif_carrier_ok(ndev)) ?
 					IB_PORT_ACTIVE : IB_PORT_DOWN;
 	props->phys_state	= state_to_phys_state(props->state);
-
-out:
+out_unlock:
 	spin_unlock(&iboe->lock);
-	return 0;
+out:
+	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
+	return err;
 }
 
 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 			      struct ib_port_attr *props)
 {
-	struct ib_smp *in_mad  = NULL;
-	struct ib_smp *out_mad = NULL;
-	int err = -ENOMEM;
-
-	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
-	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
-	if (!in_mad || !out_mad)
-		goto out;
+	int err;
 
 	memset(props, 0, sizeof *props);
 
-	init_query_mad(in_mad);
-	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
-	in_mad->attr_mod = cpu_to_be32(port);
-
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
-	if (err)
-		goto out;
-
 	err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
-		ib_link_query_port(ibdev, port, props, in_mad, out_mad) :
-		eth_link_query_port(ibdev, port, props, out_mad);
-
-out:
-	kfree(in_mad);
-	kfree(out_mad);
+		ib_link_query_port(ibdev, port, props) :
+				eth_link_query_port(ibdev, port, props);
 
 	return err;
 }