Merge branch 'mlx4-next'

Amir Vadai says:

====================
Mellanox driver update Jul-08-2014

This patch set introduce some small bug fixes.
Most of the patches are small fixes to cornet case bugs.
The patch by Noa ("Fix mac_hash database inconsistency") was sent in the past
[1] and was droped because a fix to the bonding code was supposed to make it
unnecessary. After a second look on the patch, it is still needed even
after the direct access to dev_addr by the bonding will be fixed.

Patches were applied and tested over commit bd4578b
("drivers/net/hyperv/netvsc.c: remove unnecessary null test before kfree")

[1] - http://permalink.gmane.org/gmane.linux.network/315900
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

@@ -760,21 +760,22 @@ static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
 	return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
 }
 
-static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv)
+static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
+			      unsigned char new_mac[ETH_ALEN + 2])
 {
 	int err = 0;
 
 	if (priv->port_up) {
 		/* Remove old MAC and insert the new one */
 		err = mlx4_en_replace_mac(priv, priv->base_qpn,
-					  priv->dev->dev_addr, priv->prev_mac);
+					  new_mac, priv->current_mac);
 		if (err)
 			en_err(priv, "Failed changing HW MAC address\n");
 	} else
 		en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
 
-	memcpy(priv->prev_mac, priv->dev->dev_addr,
-	       sizeof(priv->prev_mac));
+	if (!err)
+		memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
 
 	return err;
 }
@@ -784,14 +785,17 @@ static int mlx4_en_set_mac(struct net_device *dev, void *addr)
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct sockaddr *saddr = addr;
+	unsigned char new_mac[ETH_ALEN + 2];
 	int err;
 
 	if (!is_valid_ether_addr(saddr->sa_data))
 		return -EADDRNOTAVAIL;
 
 	mutex_lock(&mdev->state_lock);
+	memcpy(new_mac, saddr->sa_data, ETH_ALEN);
+	err = mlx4_en_do_set_mac(priv, new_mac);
+	if (!err)
 		memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
-	err = mlx4_en_do_set_mac(priv);
 	mutex_unlock(&mdev->state_lock);
 
 	return err;
@@ -940,11 +944,6 @@ static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
 					  0, MLX4_MCAST_DISABLE);
 		if (err)
 			en_err(priv, "Failed disabling multicast filter\n");
-
-		/* Disable port VLAN filter */
-		err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
-		if (err)
-			en_err(priv, "Failed disabling VLAN filter\n");
 	}
 }
 
@@ -993,11 +992,6 @@ static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
 			en_err(priv, "Failed disabling promiscuous mode\n");
 		break;
 	}
-
-	/* Enable port VLAN filter */
-	err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
-	if (err)
-		en_err(priv, "Failed enabling VLAN filter\n");
 }
 
 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
@@ -1166,7 +1160,8 @@ static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
 			}
 
 			/* MAC address of the port is not in uc list */
-			if (ether_addr_equal_64bits(entry->mac, dev->dev_addr))
+			if (ether_addr_equal_64bits(entry->mac,
+						    priv->current_mac))
 				found = true;
 
 			if (!found) {
@@ -1476,7 +1471,7 @@ static void mlx4_en_do_get_stats(struct work_struct *work)
 		queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
 	}
 	if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
-		mlx4_en_do_set_mac(priv);
+		mlx4_en_do_set_mac(priv, priv->current_mac);
 		mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
 	}
 	mutex_unlock(&mdev->state_lock);
@@ -2534,7 +2529,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		}
 	}
 
-	memcpy(priv->prev_mac, dev->dev_addr, sizeof(priv->prev_mac));
+	memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
 
 	priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
 					  DS_SIZE * MLX4_EN_MAX_RX_FRAGS);

drivers/net/ethernet/mellanox/mlx4/en_rx.c

@@ -922,7 +922,7 @@ static const int frag_sizes[] = {
 void mlx4_en_calc_rx_buf(struct net_device *dev)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
-	int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN + ETH_LLC_SNAP_SIZE;
+	int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN;
 	int buf_size = 0;
 	int i = 0;
 

drivers/net/ethernet/mellanox/mlx4/en_selftest.c

@@ -159,6 +159,7 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
 		if (priv->mdev->dev->caps.flags &
 					MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
 			buf[3] = mlx4_en_test_registers(priv);
+			if (priv->port_up)
 				buf[4] = mlx4_en_test_loopback(priv);
 		}
 

drivers/net/ethernet/mellanox/mlx4/mlx4.h

@@ -62,11 +62,6 @@
 
 #define INIT_HCA_TPT_MW_ENABLE          (1 << 7)
 
-#define MLX4_NUM_UP		8
-#define MLX4_NUM_TC		8
-#define MLX4_RATELIMIT_UNITS 3 /* 100 Mbps */
-#define MLX4_RATELIMIT_DEFAULT 0xffff
-
 struct mlx4_set_port_prio2tc_context {
 	u8 prio2tc[4];
 };

drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

@@ -152,8 +152,6 @@ enum {
 #define MLX4_EN_TX_POLL_MODER	16
 #define MLX4_EN_TX_POLL_TIMEOUT	(HZ / 4)
 
-#define ETH_LLC_SNAP_SIZE	8
-
 #define SMALL_PACKET_SIZE      (256 - NET_IP_ALIGN)
 #define HEADER_COPY_SIZE       (128 - NET_IP_ALIGN)
 #define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)
@@ -532,7 +530,7 @@ struct mlx4_en_priv {
 	int registered;
 	int allocated;
 	int stride;
-	unsigned char prev_mac[ETH_ALEN + 2];
+	unsigned char current_mac[ETH_ALEN + 2];
 	int mac_index;
 	unsigned max_mtu;
 	int base_qpn;

drivers/net/ethernet/mellanox/mlx4/port.c

@@ -244,10 +244,16 @@ EXPORT_SYMBOL_GPL(mlx4_get_base_qpn);
 
 void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac)
 {
-	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
-	struct mlx4_mac_table *table = &info->mac_table;
+	struct mlx4_port_info *info;
+	struct mlx4_mac_table *table;
 	int index;
 
+	if (port < 1 || port > dev->caps.num_ports) {
+		mlx4_warn(dev, "invalid port number (%d), aborting...\n", port);
+		return;
+	}
+	info = &mlx4_priv(dev)->port[port];
+	table = &info->mac_table;
 	mutex_lock(&table->mutex);
 	index = find_index(dev, table, mac);
 
@@ -1051,14 +1057,26 @@ int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
 
 	for (i = 0; i < MLX4_NUM_TC; i++) {
 		struct mlx4_port_scheduler_tc_cfg_be *tc = &context->tc[i];
-		u16 r = ratelimit && ratelimit[i] ? ratelimit[i] :
-			MLX4_RATELIMIT_DEFAULT;
+		u16 r;
+
+		if (ratelimit && ratelimit[i]) {
+			if (ratelimit[i] <= MLX4_MAX_100M_UNITS_VAL) {
+				r = ratelimit[i];
+				tc->max_bw_units =
+					htons(MLX4_RATELIMIT_100M_UNITS);
+			} else {
+				r = ratelimit[i]/10;
+				tc->max_bw_units =
+					htons(MLX4_RATELIMIT_1G_UNITS);
+			}
+			tc->max_bw_value = htons(r);
+		} else {
+			tc->max_bw_value = htons(MLX4_RATELIMIT_DEFAULT);
+			tc->max_bw_units = htons(MLX4_RATELIMIT_1G_UNITS);
+		}
 
 		tc->pg = htons(pg[i]);
 		tc->bw_precentage = htons(tc_tx_bw[i]);
-
-		tc->max_bw_units = htons(MLX4_RATELIMIT_UNITS);
-		tc->max_bw_value = htons(r);
 	}
 
 	in_mod = MLX4_SET_PORT_SCHEDULER << 8 | port;

include/linux/mlx4/device.h

@@ -48,6 +48,17 @@
 #define MSIX_LEGACY_SZ		4
 #define MIN_MSIX_P_PORT		5
 
+#define MLX4_NUM_UP			8
+#define MLX4_NUM_TC			8
+#define MLX4_MAX_100M_UNITS_VAL		255	/*
+						 * work around: can't set values
+						 * greater then this value when
+						 * using 100 Mbps units.
+						 */
+#define MLX4_RATELIMIT_100M_UNITS	3	/* 100 Mbps */
+#define MLX4_RATELIMIT_1G_UNITS		4	/* 1 Gbps */
+#define MLX4_RATELIMIT_DEFAULT		0x00ff
+
 #define MLX4_ROCE_MAX_GIDS	128
 #define MLX4_ROCE_PF_GIDS	16