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, 108 insertions, 92 deletions

diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 29b2ebfef19..f22f45f515a 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -52,11 +52,6 @@ static u64 efx_get_uint_stat(void *field)
 	return *(unsigned int *)field;
 }
 
-static u64 efx_get_ulong_stat(void *field)
-{
-	return *(unsigned long *)field;
-}
-
 static u64 efx_get_u64_stat(void *field)
 {
 	return *(u64 *) field;
@@ -67,12 +62,8 @@ static u64 efx_get_atomic_stat(void *field)
 	return atomic_read((atomic_t *) field);
 }
 
-#define EFX_ETHTOOL_ULONG_MAC_STAT(field)			\
-	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
-			  unsigned long, efx_get_ulong_stat)
-
 #define EFX_ETHTOOL_U64_MAC_STAT(field)				\
-	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
+	EFX_ETHTOOL_STAT(field, mac_stats, field,		\
 			  u64, efx_get_u64_stat)
 
 #define EFX_ETHTOOL_UINT_NIC_STAT(name)				\
@@ -91,36 +82,36 @@ static u64 efx_get_atomic_stat(void *field)
 	EFX_ETHTOOL_STAT(tx_##field, tx_queue, field,		\
 			 unsigned int, efx_get_uint_stat)
 
-static struct efx_ethtool_stat efx_ethtool_stats[] = {
+static const struct efx_ethtool_stat efx_ethtool_stats[] = {
 	EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
 	EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
 	EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
-	EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_packets),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_bad),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_pause),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_control),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_unicast),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_multicast),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_broadcast),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_lt64),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_64),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_65_to_127),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_128_to_255),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_256_to_511),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_512_to_1023),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_1024_to_15xx),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_15xx_to_jumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_gtjumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_collision),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_single_collision),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_multiple_collision),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_collision),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_deferred),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_late_collision),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_deferred),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_non_tcpudp),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_mac_src_error),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_ip_src_error),
 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
@@ -128,34 +119,34 @@ static struct efx_ethtool_stat efx_ethtool_stats[] = {
 	EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
 	EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
 	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
-	EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_packets),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_good),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_pause),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_control),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_unicast),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_multicast),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_broadcast),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_lt64),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_64),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_65_to_127),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_128_to_255),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_256_to_511),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_512_to_1023),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_1024_to_15xx),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_15xx_to_jumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_gtjumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_lt64),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_64_to_15xx),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_15xx_to_jumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_gtjumbo),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_overflow),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_missed),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_false_carrier),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_symbol_error),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_align_error),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_length_error),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_internal_error),
 	EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
 	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
@@ -404,10 +395,6 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
 			      &tests->eventq_int[channel->channel],
 			      EFX_CHANNEL_NAME(channel),
 			      "eventq.int", NULL);
-		efx_fill_test(n++, strings, data,
-			      &tests->eventq_poll[channel->channel],
-			      EFX_CHANNEL_NAME(channel),
-			      "eventq.poll", NULL);
 	}
 
 	efx_fill_test(n++, strings, data, &tests->registers,
@@ -486,16 +473,17 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_mac_stats *mac_stats = &efx->mac_stats;
-	struct efx_ethtool_stat *stat;
+	const struct efx_ethtool_stat *stat;
 	struct efx_channel *channel;
 	struct efx_tx_queue *tx_queue;
-	struct rtnl_link_stats64 temp;
 	int i;
 
 	EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
 
+	spin_lock_bh(&efx->stats_lock);
+
 	/* Update MAC and NIC statistics */
-	dev_get_stats(net_dev, &temp);
+	efx->type->update_stats(efx);
 
 	/* Fill detailed statistics buffer */
 	for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
@@ -525,6 +513,8 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
 			break;
 		}
 	}
+
+	spin_unlock_bh(&efx->stats_lock);
 }
 
 static void efx_ethtool_self_test(struct net_device *net_dev,
@@ -747,7 +737,7 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 			/* Recover by resetting the EM block */
 			falcon_stop_nic_stats(efx);
 			falcon_drain_tx_fifo(efx);
-			efx->mac_op->reconfigure(efx);
+			falcon_reconfigure_xmac(efx);
 			falcon_start_nic_stats(efx);
 		} else {
 			/* Schedule a reset to recover */
@@ -772,7 +762,7 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 	/* Reconfigure the MAC. The PHY *may* generate a link state change event
 	 * if the user just changed the advertised capabilities, but there's no
 	 * harm doing this twice */
-	efx->mac_op->reconfigure(efx);
+	efx->type->reconfigure_mac(efx);
 
 out:
 	mutex_unlock(&efx->mac_lock);
@@ -818,11 +808,16 @@ static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
 	return efx_reset(efx, rc);
 }
 
+/* MAC address mask including only MC flag */
+static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
+
 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 				      struct ethtool_rx_flow_spec *rule)
 {
 	struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
 	struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
+	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
+	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
 	struct efx_filter_spec spec;
 	u16 vid;
 	u8 proto;
@@ -838,11 +833,18 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 	else
 		rule->ring_cookie = spec.dmaq_id;
 
-	rc = efx_filter_get_eth_local(&spec, &vid,
-				      rule->h_u.ether_spec.h_dest);
+	if (spec.type == EFX_FILTER_MC_DEF || spec.type == EFX_FILTER_UC_DEF) {
+		rule->flow_type = ETHER_FLOW;
+		memcpy(mac_mask->h_dest, mac_addr_mc_mask, ETH_ALEN);
+		if (spec.type == EFX_FILTER_MC_DEF)
+			memcpy(mac_entry->h_dest, mac_addr_mc_mask, ETH_ALEN);
+		return 0;
+	}
+
+	rc = efx_filter_get_eth_local(&spec, &vid, mac_entry->h_dest);
 	if (rc == 0) {
 		rule->flow_type = ETHER_FLOW;
-		memset(rule->m_u.ether_spec.h_dest, ~0, ETH_ALEN);
+		memset(mac_mask->h_dest, ~0, ETH_ALEN);
 		if (vid != EFX_FILTER_VID_UNSPEC) {
 			rule->flow_type |= FLOW_EXT;
 			rule->h_ext.vlan_tci = htons(vid);
@@ -1011,27 +1013,40 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
 	}
 
 	case ETHER_FLOW | FLOW_EXT:
-		/* Must match all or none of VID */
-		if (rule->m_ext.vlan_tci != htons(0xfff) &&
-		    rule->m_ext.vlan_tci != 0)
-			return -EINVAL;
-	case ETHER_FLOW:
-		/* Must match all of destination */
-		if (!is_broadcast_ether_addr(mac_mask->h_dest))
-			return -EINVAL;
-		/* and nothing else */
+	case ETHER_FLOW: {
+		u16 vlan_tag_mask = (rule->flow_type & FLOW_EXT ?
+				     ntohs(rule->m_ext.vlan_tci) : 0);
+
+		/* Must not match on source address or Ethertype */
 		if (!is_zero_ether_addr(mac_mask->h_source) ||
 		    mac_mask->h_proto)
 			return -EINVAL;
 
-		rc = efx_filter_set_eth_local(
-			&spec,
-			(rule->flow_type & FLOW_EXT && rule->m_ext.vlan_tci) ?
-			ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
-			mac_entry->h_dest);
+		/* Is it a default UC or MC filter? */
+		if (!compare_ether_addr(mac_mask->h_dest, mac_addr_mc_mask) &&
+		    vlan_tag_mask == 0) {
+			if (is_multicast_ether_addr(mac_entry->h_dest))
+				rc = efx_filter_set_mc_def(&spec);
+			else
+				rc = efx_filter_set_uc_def(&spec);
+		}
+		/* Otherwise, it must match all of destination and all
+		 * or none of VID.
+		 */
+		else if (is_broadcast_ether_addr(mac_mask->h_dest) &&
+			 (vlan_tag_mask == 0xfff || vlan_tag_mask == 0)) {
+			rc = efx_filter_set_eth_local(
+				&spec,
+				vlan_tag_mask ?
+				ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
+				mac_entry->h_dest);
+		} else {
+			rc = -EINVAL;
+		}
 		if (rc)
 			return rc;
 		break;
+	}
 
 	default:
 		return -EINVAL;
@@ -1070,7 +1085,8 @@ static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 
-	return (efx_nic_rev(efx) < EFX_REV_FALCON_B0 ?
+	return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
+		 efx->n_rx_channels == 1) ?
 		0 : ARRAY_SIZE(efx->rx_indir_table));
 }