Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

Changes of note:

 1) Allow to schedule ICMP packets in IPVS, from Alex Gartrell.

 2) Provide FIB table ID in ipv4 route dumps just as ipv6 does, from
    David Ahern.

 3) Allow the user to ask for the statistics to be filtered out of
    ipv4/ipv6 address netlink dumps.  From Sowmini Varadhan.

 4) More work to pass the network namespace context around deep into
    various packet path APIs, starting with the netfilter hooks.  From
    Eric W Biederman.

 5) Add layer 2 TX/RX checksum offloading to qeth driver, from Thomas
    Richter.

 6) Use usec resolution for SYN/ACK RTTs in TCP, from Yuchung Cheng.

 7) Support Very High Throughput in wireless MESH code, from Bob
    Copeland.

 8) Allow setting the ageing_time in switchdev/rocker.  From Scott
    Feldman.

 9) Properly autoload L2TP type modules, from Stephen Hemminger.

10) Fix and enable offload features by default in 8139cp driver, from
    David Woodhouse.

11) Support both ipv4 and ipv6 sockets in a single vxlan device, from
    Jiri Benc.

12) Fix CWND limiting of thin streams in TCP, from Bendik Rønning
    Opstad.

13) Fix IPSEC flowcache overflows on large systems, from Steffen
    Klassert.

14) Convert bridging to track VLANs using rhashtable entries rather than
    a bitmap.  From Nikolay Aleksandrov.

15) Make TCP listener handling completely lockless, this is a major
    accomplishment.  Incoming request sockets now live in the
    established hash table just like any other socket too.

    From Eric Dumazet.

15) Provide more bridging attributes to netlink, from Nikolay
    Aleksandrov.

16) Use hash based algorithm for ipv4 multipath routing, this was very
    long overdue.  From Peter Nørlund.

17) Several y2038 cures, mostly avoiding timespec.  From Arnd Bergmann.

18) Allow non-root execution of EBPF programs, from Alexei Starovoitov.

19) Support SO_INCOMING_CPU as setsockopt, from Eric Dumazet.  This
    influences the port binding selection logic used by SO_REUSEPORT.

20) Add ipv6 support to VRF, from David Ahern.

21) Add support for Mellanox Spectrum switch ASIC, from Jiri Pirko.

22) Add rtl8xxxu Realtek wireless driver, from Jes Sorensen.

23) Implement RACK loss recovery in TCP, from Yuchung Cheng.

24) Support multipath routes in MPLS, from Roopa Prabhu.

25) Fix POLLOUT notification for listening sockets in AF_UNIX, from Eric
    Dumazet.

26) Add new QED Qlogic river, from Yuval Mintz, Manish Chopra, and
    Sudarsana Kalluru.

27) Don't fetch timestamps on AF_UNIX sockets, from Hannes Frederic
    Sowa.

28) Support ipv6 geneve tunnels, from John W Linville.

29) Add flood control support to switchdev layer, from Ido Schimmel.

30) Fix CHECKSUM_PARTIAL handling of potentially fragmented frames, from
    Hannes Frederic Sowa.

31) Support persistent maps and progs in bpf, from Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1790 commits)
  sh_eth: use DMA barriers
  switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion
  net: sched: kill dead code in sch_choke.c
  irda: Delete an unnecessary check before the function call "irlmp_unregister_service"
  net: dsa: mv88e6xxx: include DSA ports in VLANs
  net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports
  net/core: fix for_each_netdev_feature
  vlan: Invoke driver vlan hooks only if device is present
  arcnet/com20020: add LEDS_CLASS dependency
  bpf, verifier: annotate verbose printer with __printf
  dp83640: Only wait for timestamps for packets with timestamping enabled.
  ptp: Change ptp_class to a proper bitmask
  dp83640: Prune rx timestamp list before reading from it
  dp83640: Delay scheduled work.
  dp83640: Include hash in timestamp/packet matching
  ipv6: fix tunnel error handling
  net/mlx5e: Fix LSO vlan insertion
  net/mlx5e: Re-eanble client vlan TX acceleration
  net/mlx5e: Return error in case mlx5e_set_features() fails
  net/mlx5e: Don't allow more than max supported channels
  ...

1 files changed, 180 insertions, 48 deletions

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index a8556692f632..8f1b091e1732 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -19,7 +19,9 @@
 #include <linux/mii.h>
 #include <linux/ip.h>
 #include <linux/list.h>
-
+#include <linux/hash.h>
+#include <linux/hashtable.h>
+#include <linux/string.h>
 #include "qeth_core.h"
 #include "qeth_l2.h"
 
@@ -28,7 +30,7 @@ static int qeth_l2_stop(struct net_device *);
 static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
 static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
 			   enum qeth_ipa_cmds);
-static void qeth_l2_set_multicast_list(struct net_device *);
+static void qeth_l2_set_rx_mode(struct net_device *);
 static int qeth_l2_recover(void *);
 static void qeth_bridgeport_query_support(struct qeth_card *card);
 static void qeth_bridge_state_change(struct qeth_card *card,
@@ -193,49 +195,44 @@ static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
 	return rc;
 }
 
-static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
+static inline u32 qeth_l2_mac_hash(const u8 *addr)
 {
-	struct qeth_mc_mac *mc;
-	int rc;
-
-	mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC);
+	return get_unaligned((u32 *)(&addr[2]));
+}
 
-	if (!mc)
-		return;
+static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
+{
 
-	memcpy(mc->mc_addr, mac, OSA_ADDR_LEN);
-	mc->mc_addrlen = OSA_ADDR_LEN;
-	mc->is_vmac = vmac;
+	int rc;
 
-	if (vmac) {
+	if (mac->is_uc) {
 		rc = qeth_setdel_makerc(card,
-			qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC));
+				qeth_l2_send_setdelmac(card, mac->mac_addr,
+						IPA_CMD_SETVMAC));
 	} else {
 		rc = qeth_setdel_makerc(card,
-			qeth_l2_send_setgroupmac(card, mac));
+				qeth_l2_send_setgroupmac(card, mac->mac_addr));
 	}
-
-	if (!rc)
-		list_add_tail(&mc->list, &card->mc_list);
-	else
-		kfree(mc);
+	return rc;
 }
 
-static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
+static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
 {
-	struct qeth_mc_mac *mc, *tmp;
+	struct qeth_mac *mac;
+	struct hlist_node *tmp;
+	int i;
 
 	spin_lock_bh(&card->mclock);
-	list_for_each_entry_safe(mc, tmp, &card->mc_list, list) {
+	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
 		if (del) {
-			if (mc->is_vmac)
-				qeth_l2_send_setdelmac(card, mc->mc_addr,
-					IPA_CMD_DELVMAC);
+			if (mac->is_uc)
+				qeth_l2_send_setdelmac(card, mac->mac_addr,
+						IPA_CMD_DELVMAC);
 			else
-				qeth_l2_send_delgroupmac(card, mc->mc_addr);
+				qeth_l2_send_delgroupmac(card, mac->mac_addr);
 		}
-		list_del(&mc->list);
-		kfree(mc);
+		hash_del(&mac->hnode);
+		kfree(mac);
 	}
 	spin_unlock_bh(&card->mclock);
 }
@@ -252,6 +249,23 @@ static inline int qeth_l2_get_cast_type(struct qeth_card *card,
 	return RTN_UNSPEC;
 }
 
+static inline void qeth_l2_hdr_csum(struct qeth_card *card,
+				    struct qeth_hdr *hdr, struct sk_buff *skb)
+{
+	struct iphdr *iph = ip_hdr(skb);
+
+	/* tcph->check contains already the pseudo hdr checksum
+	 * so just set the header flags
+	 */
+	if (iph->protocol == IPPROTO_UDP)
+		hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
+	hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
+		QETH_HDR_EXT_CSUM_HDR_REQ;
+	iph->check = 0;
+	if (card->options.performance_stats)
+		card->perf_stats.tx_csum++;
+}
+
 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 			struct sk_buff *skb, int cast_type)
 {
@@ -386,10 +400,42 @@ static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
 		rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
 		kfree(tmpid);
 	}
-	qeth_l2_set_multicast_list(card->dev);
+	qeth_l2_set_rx_mode(card->dev);
 	return rc;
 }
 
+static netdev_features_t qeth_l2_fix_features(struct net_device *dev,
+					      netdev_features_t features)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	QETH_DBF_TEXT(SETUP, 2, "fixfeat");
+	if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
+		features &= ~NETIF_F_IP_CSUM;
+	if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
+		features &= ~NETIF_F_RXCSUM;
+	QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
+	return features;
+}
+
+static int qeth_l2_set_features(struct net_device *dev,
+				netdev_features_t features)
+{
+	struct qeth_card *card = dev->ml_priv;
+	netdev_features_t changed = dev->features ^ features;
+
+	QETH_DBF_TEXT(SETUP, 2, "setfeat");
+	QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
+
+	if (card->state == CARD_STATE_DOWN ||
+	    card->state == CARD_STATE_RECOVER)
+		return 0;
+
+	if (!(changed & NETIF_F_RXCSUM))
+		return 0;
+	return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
+}
+
 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
 {
 	QETH_DBF_TEXT(SETUP , 2, "stopcard");
@@ -411,7 +457,7 @@ static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
 		card->state = CARD_STATE_SOFTSETUP;
 	}
 	if (card->state == CARD_STATE_SOFTSETUP) {
-		qeth_l2_del_all_mc(card, 0);
+		qeth_l2_del_all_macs(card, 0);
 		qeth_clear_ipacmd_list(card);
 		card->state = CARD_STATE_HARDSETUP;
 	}
@@ -450,11 +496,19 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 		case QETH_HEADER_TYPE_LAYER2:
 			skb->pkt_type = PACKET_HOST;
 			skb->protocol = eth_type_trans(skb, skb->dev);
-			skb->ip_summed = CHECKSUM_NONE;
+			if ((card->dev->features & NETIF_F_RXCSUM)
+			   && ((hdr->hdr.l2.flags[1] &
+				(QETH_HDR_EXT_CSUM_HDR_REQ |
+				   QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
+				(QETH_HDR_EXT_CSUM_HDR_REQ |
+				   QETH_HDR_EXT_CSUM_TRANSP_REQ)))
+				skb->ip_summed = CHECKSUM_UNNECESSARY;
+			else
+				skb->ip_summed = CHECKSUM_NONE;
 			if (skb->protocol == htons(ETH_P_802_2))
 				*((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
 			len = skb->len;
-			netif_receive_skb(skb);
+			napi_gro_receive(&card->napi, skb);
 			break;
 		case QETH_HEADER_TYPE_OSN:
 			if (card->info.type == QETH_CARD_TYPE_OSN) {
@@ -711,29 +765,91 @@ static void qeth_promisc_to_bridge(struct qeth_card *card)
 		card->options.sbp.role = role;
 		card->info.promisc_mode = promisc_mode;
 	}
+
 }
+/* New MAC address is added to the hash table and marked to be written on card
+ * only if there is not in the hash table storage already
+ *
+*/
+static	void
+qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
+{
+	struct qeth_mac *mac;
 
-static void qeth_l2_set_multicast_list(struct net_device *dev)
+	hash_for_each_possible(card->mac_htable, mac, hnode,
+			qeth_l2_mac_hash(ha->addr)) {
+		if (is_uc == mac->is_uc &&
+		    !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
+			mac->disp_flag = QETH_DISP_MAC_DO_NOTHING;
+			return;
+		}
+	}
+
+	mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
+
+	if (!mac)
+		return;
+
+	memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
+	mac->is_uc = is_uc;
+	mac->disp_flag = QETH_DISP_MAC_ADD;
+
+	hash_add(card->mac_htable, &mac->hnode,
+			qeth_l2_mac_hash(mac->mac_addr));
+
+}
+
+static void qeth_l2_set_rx_mode(struct net_device *dev)
 {
 	struct qeth_card *card = dev->ml_priv;
 	struct netdev_hw_addr *ha;
+	struct qeth_mac *mac;
+	struct hlist_node *tmp;
+	int i;
+	int rc;
 
 	if (card->info.type == QETH_CARD_TYPE_OSN)
-		return ;
+		return;
 
 	QETH_CARD_TEXT(card, 3, "setmulti");
 	if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
 	    (card->state != CARD_STATE_UP))
 		return;
-	qeth_l2_del_all_mc(card, 1);
+
 	spin_lock_bh(&card->mclock);
+
 	netdev_for_each_mc_addr(ha, dev)
-		qeth_l2_add_mc(card, ha->addr, 0);
+		qeth_l2_add_mac(card, ha, 0);
 
 	netdev_for_each_uc_addr(ha, dev)
-		qeth_l2_add_mc(card, ha->addr, 1);
+		qeth_l2_add_mac(card, ha, 1);
+
+	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
+		if (mac->disp_flag == QETH_DISP_MAC_DELETE) {
+			if (!mac->is_uc)
+				rc = qeth_l2_send_delgroupmac(card,
+						mac->mac_addr);
+			else {
+				rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
+						IPA_CMD_DELVMAC);
+			}
+
+			hash_del(&mac->hnode);
+			kfree(mac);
+
+		} else if (mac->disp_flag == QETH_DISP_MAC_ADD) {
+			rc = qeth_l2_write_mac(card, mac);
+			if (rc) {
+				hash_del(&mac->hnode);
+				kfree(mac);
+			} else
+				mac->disp_flag = QETH_DISP_MAC_DELETE;
+		} else
+			mac->disp_flag = QETH_DISP_MAC_DELETE;
+	}
 
 	spin_unlock_bh(&card->mclock);
+
 	if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
 		qeth_setadp_promisc_mode(card);
 	else
@@ -803,6 +919,8 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 						sizeof(struct qeth_hdr));
 			skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
 			qeth_l2_fill_header(card, hdr, new_skb, cast_type);
+			if (new_skb->ip_summed == CHECKSUM_PARTIAL)
+				qeth_l2_hdr_csum(card, hdr, new_skb);
 		}
 	}
 
@@ -915,7 +1033,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 
 	qeth_l2_create_device_attributes(&gdev->dev);
 	INIT_LIST_HEAD(&card->vid_list);
-	INIT_LIST_HEAD(&card->mc_list);
+	hash_init(card->mac_htable);
 	card->options.layer2 = 1;
 	card->info.hwtrap = 0;
 	return 0;
@@ -961,13 +1079,15 @@ static const struct net_device_ops qeth_l2_netdev_ops = {
 	.ndo_get_stats		= qeth_get_stats,
 	.ndo_start_xmit		= qeth_l2_hard_start_xmit,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_rx_mode	= qeth_l2_set_multicast_list,
+	.ndo_set_rx_mode	= qeth_l2_set_rx_mode,
 	.ndo_do_ioctl	   	= qeth_l2_do_ioctl,
 	.ndo_set_mac_address    = qeth_l2_set_mac_address,
 	.ndo_change_mtu	   	= qeth_change_mtu,
 	.ndo_vlan_rx_add_vid	= qeth_l2_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid   = qeth_l2_vlan_rx_kill_vid,
 	.ndo_tx_timeout	   	= qeth_tx_timeout,
+	.ndo_fix_features	= qeth_l2_fix_features,
+	.ndo_set_features	= qeth_l2_set_features
 };
 
 static int qeth_l2_setup_netdev(struct qeth_card *card)
@@ -997,6 +1117,11 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 		(card->info.type != QETH_CARD_TYPE_OSN) ?
 		&qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
 	card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
+		card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
+		/* Turn on RX offloading per default */
+		card->dev->features |= NETIF_F_RXCSUM;
+	}
 	card->info.broadcast_capable = 1;
 	qeth_l2_request_initial_mac(card);
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
@@ -1004,6 +1129,17 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 	return register_netdev(card->dev);
 }
 
+static int qeth_l2_start_ipassists(struct qeth_card *card)
+{
+	/* configure isolation level */
+	if (qeth_set_access_ctrl_online(card, 0))
+		return -ENODEV;
+	if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
+		qeth_set_rx_csum(card, 1);
+	qeth_start_ipa_tx_checksum(card);
+	return 0;
+}
+
 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
@@ -1069,12 +1205,8 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 contin:
 	if ((card->info.type == QETH_CARD_TYPE_OSD) ||
 	    (card->info.type == QETH_CARD_TYPE_OSX)) {
-		/* configure isolation level */
-		rc = qeth_set_access_ctrl_online(card, 0);
-		if (rc) {
-			rc = -ENODEV;
+		if (qeth_l2_start_ipassists(card))
 			goto out_remove;
-		}
 	}
 
 	if (card->info.type != QETH_CARD_TYPE_OSN &&
@@ -1106,7 +1238,7 @@ contin:
 			rtnl_unlock();
 		}
 		/* this also sets saved unicast addresses */
-		qeth_l2_set_multicast_list(card->dev);
+		qeth_l2_set_rx_mode(card->dev);
 	}
 	/* let user_space know that device is online */
 	kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
@@ -1452,8 +1584,8 @@ static void qeth_bridge_emit_host_event(struct qeth_card *card,
 			env[i] = str[i]; i++;
 		}
 		if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
-			snprintf(str[i], sizeof(str[i]), "MAC=%pM6",
-				&addr_lnid->mac);
+			snprintf(str[i], sizeof(str[i]), "MAC=%pM",
+				addr_lnid->mac);
 			env[i] = str[i]; i++;
 		}
 		snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",