Merge branch 'next' into for-linus

Prepare first set of updates for 3.10 merge window.

1 files changed, 232 insertions, 81 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 9d0b88eea02b..00f25b5f297f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -35,6 +35,8 @@
 #include <linux/ethtool.h>
 #include <linux/netdevice.h>
 #include <linux/mlx4/driver.h>
+#include <linux/in.h>
+#include <net/ip.h>
 
 #include "mlx4_en.h"
 #include "en_port.h"
@@ -43,6 +45,34 @@
 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
 #define EN_ETHTOOL_WORD_MASK  cpu_to_be32(0xffffffff)
 
+static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
+{
+	int i;
+	int err = 0;
+
+	for (i = 0; i < priv->tx_ring_num; i++) {
+		priv->tx_cq[i].moder_cnt = priv->tx_frames;
+		priv->tx_cq[i].moder_time = priv->tx_usecs;
+		err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]);
+		if (err)
+			return err;
+	}
+
+	if (priv->adaptive_rx_coal)
+		return 0;
+
+	for (i = 0; i < priv->rx_ring_num; i++) {
+		priv->rx_cq[i].moder_cnt = priv->rx_frames;
+		priv->rx_cq[i].moder_time = priv->rx_usecs;
+		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
+		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
+		if (err)
+			return err;
+	}
+
+	return err;
+}
+
 static void
 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
 {
@@ -381,7 +411,6 @@ static int mlx4_en_set_coalesce(struct net_device *dev,
 			      struct ethtool_coalesce *coal)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
-	int err, i;
 
 	priv->rx_frames = (coal->rx_max_coalesced_frames ==
 			   MLX4_EN_AUTO_CONF) ?
@@ -397,14 +426,6 @@ static int mlx4_en_set_coalesce(struct net_device *dev,
 	    coal->tx_max_coalesced_frames != priv->tx_frames) {
 		priv->tx_usecs = coal->tx_coalesce_usecs;
 		priv->tx_frames = coal->tx_max_coalesced_frames;
-		for (i = 0; i < priv->tx_ring_num; i++) {
-			priv->tx_cq[i].moder_cnt = priv->tx_frames;
-			priv->tx_cq[i].moder_time = priv->tx_usecs;
-			if (mlx4_en_set_cq_moder(priv, &priv->tx_cq[i])) {
-				en_warn(priv, "Failed changing moderation "
-					      "for TX cq %d\n", i);
-			}
-		}
 	}
 
 	/* Set adaptive coalescing params */
@@ -414,18 +435,8 @@ static int mlx4_en_set_coalesce(struct net_device *dev,
 	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 	priv->sample_interval = coal->rate_sample_interval;
 	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
-	if (priv->adaptive_rx_coal)
-		return 0;
 
-	for (i = 0; i < priv->rx_ring_num; i++) {
-		priv->rx_cq[i].moder_cnt = priv->rx_frames;
-		priv->rx_cq[i].moder_time = priv->rx_usecs;
-		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
-		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
-		if (err)
-			return err;
-	}
-	return 0;
+	return mlx4_en_moderation_update(priv);
 }
 
 static int mlx4_en_set_pauseparam(struct net_device *dev,
@@ -466,7 +477,6 @@ static int mlx4_en_set_ringparam(struct net_device *dev,
 	u32 rx_size, tx_size;
 	int port_up = 0;
 	int err = 0;
-	int i;
 
 	if (param->rx_jumbo_pending || param->rx_mini_pending)
 		return -EINVAL;
@@ -486,7 +496,7 @@ static int mlx4_en_set_ringparam(struct net_device *dev,
 	mutex_lock(&mdev->state_lock);
 	if (priv->port_up) {
 		port_up = 1;
-		mlx4_en_stop_port(dev);
+		mlx4_en_stop_port(dev, 1);
 	}
 
 	mlx4_en_free_resources(priv);
@@ -505,14 +515,7 @@ static int mlx4_en_set_ringparam(struct net_device *dev,
 			en_err(priv, "Failed starting port\n");
 	}
 
-	for (i = 0; i < priv->rx_ring_num; i++) {
-		priv->rx_cq[i].moder_cnt = priv->rx_frames;
-		priv->rx_cq[i].moder_time = priv->rx_usecs;
-		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
-		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
-		if (err)
-			goto out;
-	}
+	err = mlx4_en_moderation_update(priv);
 
 out:
 	mutex_unlock(&mdev->state_lock);
@@ -588,7 +591,7 @@ static int mlx4_en_set_rxfh_indir(struct net_device *dev,
 	mutex_lock(&mdev->state_lock);
 	if (priv->port_up) {
 		port_up = 1;
-		mlx4_en_stop_port(dev);
+		mlx4_en_stop_port(dev, 1);
 	}
 
 	priv->prof->rss_rings = rss_rings;
@@ -612,13 +615,17 @@ static int mlx4_en_validate_flow(struct net_device *dev,
 	struct ethtool_usrip4_spec *l3_mask;
 	struct ethtool_tcpip4_spec *l4_mask;
 	struct ethhdr *eth_mask;
-	u64 full_mac = ~0ull;
-	u64 zero_mac = 0;
 
 	if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
 		return -EINVAL;
 
-	switch (cmd->fs.flow_type & ~FLOW_EXT) {
+	if (cmd->fs.flow_type & FLOW_MAC_EXT) {
+		/* dest mac mask must be ff:ff:ff:ff:ff:ff */
+		if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
+			return -EINVAL;
+	}
+
+	switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 	case TCP_V4_FLOW:
 	case UDP_V4_FLOW:
 		if (cmd->fs.m_u.tcp_ip4_spec.tos)
@@ -643,11 +650,11 @@ static int mlx4_en_validate_flow(struct net_device *dev,
 	case ETHER_FLOW:
 		eth_mask = &cmd->fs.m_u.ether_spec;
 		/* source mac mask must not be set */
-		if (memcmp(eth_mask->h_source, &zero_mac, ETH_ALEN))
+		if (!is_zero_ether_addr(eth_mask->h_source))
 			return -EINVAL;
 
 		/* dest mac mask must be ff:ff:ff:ff:ff:ff */
-		if (memcmp(eth_mask->h_dest, &full_mac, ETH_ALEN))
+		if (!is_broadcast_ether_addr(eth_mask->h_dest))
 			return -EINVAL;
 
 		if (!all_zeros_or_all_ones(eth_mask->h_proto))
@@ -659,27 +666,90 @@ static int mlx4_en_validate_flow(struct net_device *dev,
 
 	if ((cmd->fs.flow_type & FLOW_EXT)) {
 		if (cmd->fs.m_ext.vlan_etype ||
-		    !(cmd->fs.m_ext.vlan_tci == 0 ||
-		      cmd->fs.m_ext.vlan_tci == cpu_to_be16(0xfff)))
+		    !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
+		      0 ||
+		      (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
+		      cpu_to_be16(VLAN_VID_MASK)))
 			return -EINVAL;
+
+		if (cmd->fs.m_ext.vlan_tci) {
+			if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
+				return -EINVAL;
+
+		}
 	}
 
 	return 0;
 }
 
+static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
+					struct list_head *rule_list_h,
+					struct mlx4_spec_list *spec_l2,
+					unsigned char *mac)
+{
+	int err = 0;
+	__be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
+
+	spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
+	memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
+	memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
+
+	if ((cmd->fs.flow_type & FLOW_EXT) &&
+	    (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
+		spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
+		spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
+	}
+
+	list_add_tail(&spec_l2->list, rule_list_h);
+
+	return err;
+}
+
+static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
+						struct ethtool_rxnfc *cmd,
+						struct list_head *rule_list_h,
+						struct mlx4_spec_list *spec_l2,
+						__be32 ipv4_dst)
+{
+#ifdef CONFIG_INET
+	unsigned char mac[ETH_ALEN];
+
+	if (!ipv4_is_multicast(ipv4_dst)) {
+		if (cmd->fs.flow_type & FLOW_MAC_EXT)
+			memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
+		else
+			memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
+	} else {
+		ip_eth_mc_map(ipv4_dst, mac);
+	}
+
+	return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
+#else
+	return -EINVAL;
+#endif
+}
+
 static int add_ip_rule(struct mlx4_en_priv *priv,
-			struct ethtool_rxnfc *cmd,
-			struct list_head *list_h)
+		       struct ethtool_rxnfc *cmd,
+		       struct list_head *list_h)
 {
-	struct mlx4_spec_list *spec_l3;
+	int err;
+	struct mlx4_spec_list *spec_l2 = NULL;
+	struct mlx4_spec_list *spec_l3 = NULL;
 	struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
 
-	spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
-	if (!spec_l3) {
-		en_err(priv, "Fail to alloc ethtool rule.\n");
-		return -ENOMEM;
+	spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
+	spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
+	if (!spec_l2 || !spec_l3) {
+		err = -ENOMEM;
+		goto free_spec;
 	}
 
+	err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
+						   cmd->fs.h_u.
+						   usr_ip4_spec.ip4dst);
+	if (err)
+		goto free_spec;
 	spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 	spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
 	if (l3_mask->ip4src)
@@ -690,34 +760,52 @@ static int add_ip_rule(struct mlx4_en_priv *priv,
 	list_add_tail(&spec_l3->list, list_h);
 
 	return 0;
+
+free_spec:
+	kfree(spec_l2);
+	kfree(spec_l3);
+	return err;
 }
 
 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
 			     struct ethtool_rxnfc *cmd,
 			     struct list_head *list_h, int proto)
 {
-	struct mlx4_spec_list *spec_l3;
-	struct mlx4_spec_list *spec_l4;
+	int err;
+	struct mlx4_spec_list *spec_l2 = NULL;
+	struct mlx4_spec_list *spec_l3 = NULL;
+	struct mlx4_spec_list *spec_l4 = NULL;
 	struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
 
-	spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
-	spec_l4 = kzalloc(sizeof *spec_l4, GFP_KERNEL);
-	if (!spec_l4 || !spec_l3) {
-		en_err(priv, "Fail to alloc ethtool rule.\n");
-		kfree(spec_l3);
-		kfree(spec_l4);
-		return -ENOMEM;
+	spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
+	spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
+	spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
+	if (!spec_l2 || !spec_l3 || !spec_l4) {
+		err = -ENOMEM;
+		goto free_spec;
 	}
 
 	spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 
 	if (proto == TCP_V4_FLOW) {
+		err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
+							   spec_l2,
+							   cmd->fs.h_u.
+							   tcp_ip4_spec.ip4dst);
+		if (err)
+			goto free_spec;
 		spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
 		spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
 		spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
 		spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
 		spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
 	} else {
+		err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
+							   spec_l2,
+							   cmd->fs.h_u.
+							   udp_ip4_spec.ip4dst);
+		if (err)
+			goto free_spec;
 		spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
 		spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
 		spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
@@ -739,6 +827,12 @@ static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
 	list_add_tail(&spec_l4->list, list_h);
 
 	return 0;
+
+free_spec:
+	kfree(spec_l2);
+	kfree(spec_l3);
+	kfree(spec_l4);
+	return err;
 }
 
 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
@@ -746,40 +840,23 @@ static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
 					     struct list_head *rule_list_h)
 {
 	int err;
-	u64 mac;
-	__be64 be_mac;
 	struct ethhdr *eth_spec;
-	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_spec_list *spec_l2;
-	__be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
+	struct mlx4_en_priv *priv = netdev_priv(dev);
 
 	err = mlx4_en_validate_flow(dev, cmd);
 	if (err)
 		return err;
 
-	spec_l2 = kzalloc(sizeof *spec_l2, GFP_KERNEL);
-	if (!spec_l2)
-		return -ENOMEM;
-
-	mac = priv->mac & MLX4_MAC_MASK;
-	be_mac = cpu_to_be64(mac << 16);
-
-	spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
-	memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
-	if ((cmd->fs.flow_type & ~FLOW_EXT) != ETHER_FLOW)
-		memcpy(spec_l2->eth.dst_mac, &be_mac, ETH_ALEN);
-
-	if ((cmd->fs.flow_type & FLOW_EXT) && cmd->fs.m_ext.vlan_tci) {
-		spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
-		spec_l2->eth.vlan_id_msk = cpu_to_be16(0xfff);
-	}
-
-	list_add_tail(&spec_l2->list, rule_list_h);
-
-	switch (cmd->fs.flow_type & ~FLOW_EXT) {
+	switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 	case ETHER_FLOW:
+		spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
+		if (!spec_l2)
+			return -ENOMEM;
+
 		eth_spec = &cmd->fs.h_u.ether_spec;
-		memcpy(&spec_l2->eth.dst_mac, eth_spec->h_dest, ETH_ALEN);
+		mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
+					     &eth_spec->h_dest[0]);
 		spec_l2->eth.ether_type = eth_spec->h_proto;
 		if (eth_spec->h_proto)
 			spec_l2->eth.ether_type_enable = 1;
@@ -853,6 +930,7 @@ static int mlx4_en_flow_replace(struct net_device *dev,
 		loc_rule->id = 0;
 		memset(&loc_rule->flow_spec, 0,
 		       sizeof(struct ethtool_rx_flow_spec));
+		list_del(&loc_rule->list);
 	}
 	err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
 	if (err) {
@@ -863,6 +941,7 @@ static int mlx4_en_flow_replace(struct net_device *dev,
 	loc_rule->id = reg_id;
 	memcpy(&loc_rule->flow_spec, &cmd->fs,
 	       sizeof(struct ethtool_rx_flow_spec));
+	list_add_tail(&loc_rule->list, &priv->ethtool_list);
 
 out_free_list:
 	list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
@@ -896,6 +975,7 @@ static int mlx4_en_flow_detach(struct net_device *dev,
 	}
 	rule->id = 0;
 	memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
+	list_del(&rule->list);
 out:
 	return err;
 
@@ -944,7 +1024,8 @@ static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 	if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
 	     cmd->cmd == ETHTOOL_GRXCLSRULE ||
 	     cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
-	    mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
+	    (mdev->dev->caps.steering_mode !=
+	     MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
 		return -EINVAL;
 
 	switch (cmd->cmd) {
@@ -980,7 +1061,8 @@ static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 
-	if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
+	if (mdev->dev->caps.steering_mode !=
+	    MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
 		return -EINVAL;
 
 	switch (cmd->cmd) {
@@ -998,6 +1080,73 @@ static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 	return err;
 }
 
+static void mlx4_en_get_channels(struct net_device *dev,
+				 struct ethtool_channels *channel)
+{
+	struct mlx4_en_priv *priv = netdev_priv(dev);
+
+	memset(channel, 0, sizeof(*channel));
+
+	channel->max_rx = MAX_RX_RINGS;
+	channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
+
+	channel->rx_count = priv->rx_ring_num;
+	channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
+}
+
+static int mlx4_en_set_channels(struct net_device *dev,
+				struct ethtool_channels *channel)
+{
+	struct mlx4_en_priv *priv = netdev_priv(dev);
+	struct mlx4_en_dev *mdev = priv->mdev;
+	int port_up;
+	int err = 0;
+
+	if (channel->other_count || channel->combined_count ||
+	    channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
+	    channel->rx_count > MAX_RX_RINGS ||
+	    !channel->tx_count || !channel->rx_count)
+		return -EINVAL;
+
+	mutex_lock(&mdev->state_lock);
+	if (priv->port_up) {
+		port_up = 1;
+		mlx4_en_stop_port(dev, 1);
+	}
+
+	mlx4_en_free_resources(priv);
+
+	priv->num_tx_rings_p_up = channel->tx_count;
+	priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
+	priv->rx_ring_num = channel->rx_count;
+
+	err = mlx4_en_alloc_resources(priv);
+	if (err) {
+		en_err(priv, "Failed reallocating port resources\n");
+		goto out;
+	}
+
+	netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
+	netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
+
+	mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
+
+	en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
+	en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
+
+	if (port_up) {
+		err = mlx4_en_start_port(dev);
+		if (err)
+			en_err(priv, "Failed starting port\n");
+	}
+
+	err = mlx4_en_moderation_update(priv);
+
+out:
+	mutex_unlock(&mdev->state_lock);
+	return err;
+}
+
 const struct ethtool_ops mlx4_en_ethtool_ops = {
 	.get_drvinfo = mlx4_en_get_drvinfo,
 	.get_settings = mlx4_en_get_settings,
@@ -1022,6 +1171,8 @@ const struct ethtool_ops mlx4_en_ethtool_ops = {
 	.get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
 	.get_rxfh_indir = mlx4_en_get_rxfh_indir,
 	.set_rxfh_indir = mlx4_en_set_rxfh_indir,
+	.get_channels = mlx4_en_get_channels,
+	.set_channels = mlx4_en_set_channels,
 };