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

Pull networking updates from David Miller:

 1) Add Maglev hashing scheduler to IPVS, from Inju Song.

 2) Lots of new TC subsystem tests from Roman Mashak.

 3) Add TCP zero copy receive and fix delayed acks and autotuning with
    SO_RCVLOWAT, from Eric Dumazet.

 4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
    Brouer.

 5) Add ttl inherit support to vxlan, from Hangbin Liu.

 6) Properly separate ipv6 routes into their logically independant
    components. fib6_info for the routing table, and fib6_nh for sets of
    nexthops, which thus can be shared. From David Ahern.

 7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
    messages from XDP programs. From Nikita V. Shirokov.

 8) Lots of long overdue cleanups to the r8169 driver, from Heiner
    Kallweit.

 9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.

10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.

11) Plumb extack down into fib_rules, from Roopa Prabhu.

12) Add Flower classifier offload support to igb, from Vinicius Costa
    Gomes.

13) Add UDP GSO support, from Willem de Bruijn.

14) Add documentation for eBPF helpers, from Quentin Monnet.

15) Add TLS tx offload to mlx5, from Ilya Lesokhin.

16) Allow applications to be given the number of bytes available to read
    on a socket via a control message returned from recvmsg(), from
    Soheil Hassas Yeganeh.

17) Add x86_32 eBPF JIT compiler, from Wang YanQing.

18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
    From Björn Töpel.

19) Remove indirect load support from all of the BPF JITs and handle
    these operations in the verifier by translating them into native BPF
    instead. From Daniel Borkmann.

20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.

21) Allow XDP programs to do lookups in the main kernel routing tables
    for forwarding. From David Ahern.

22) Allow drivers to store hardware state into an ELF section of kernel
    dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.

23) Various RACK and loss detection improvements in TCP, from Yuchung
    Cheng.

24) Add TCP SACK compression, from Eric Dumazet.

25) Add User Mode Helper support and basic bpfilter infrastructure, from
    Alexei Starovoitov.

26) Support ports and protocol values in RTM_GETROUTE, from Roopa
    Prabhu.

27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
    Brouer.

28) Add lots of forwarding selftests, from Petr Machata.

29) Add generic network device failover driver, from Sridhar Samudrala.

* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
  strparser: Add __strp_unpause and use it in ktls.
  rxrpc: Fix terminal retransmission connection ID to include the channel
  net: hns3: Optimize PF CMDQ interrupt switching process
  net: hns3: Fix for VF mailbox receiving unknown message
  net: hns3: Fix for VF mailbox cannot receiving PF response
  bnx2x: use the right constant
  Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
  net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
  enic: fix UDP rss bits
  netdev-FAQ: clarify DaveM's position for stable backports
  rtnetlink: validate attributes in do_setlink()
  mlxsw: Add extack messages for port_{un, }split failures
  netdevsim: Add extack error message for devlink reload
  devlink: Add extack to reload and port_{un, }split operations
  net: metrics: add proper netlink validation
  ipmr: fix error path when ipmr_new_table fails
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  net: hns3: remove unused hclgevf_cfg_func_mta_filter
  netfilter: provide udp*_lib_lookup for nf_tproxy
  qed*: Utilize FW 8.37.2.0
  ...

1 files changed, 149 insertions, 9 deletions

diff --git a/net/netfilter/nft_numgen.c b/net/netfilter/nft_numgen.c
index 5a3a52c71545..1f4d0854cf70 100644
--- a/net/netfilter/nft_numgen.c
+++ b/net/netfilter/nft_numgen.c
@@ -24,13 +24,11 @@ struct nft_ng_inc {
 	u32			modulus;
 	atomic_t		counter;
 	u32			offset;
+	struct nft_set		*map;
 };
 
-static void nft_ng_inc_eval(const struct nft_expr *expr,
-			    struct nft_regs *regs,
-			    const struct nft_pktinfo *pkt)
+static u32 nft_ng_inc_gen(struct nft_ng_inc *priv)
 {
-	struct nft_ng_inc *priv = nft_expr_priv(expr);
 	u32 nval, oval;
 
 	do {
@@ -38,7 +36,36 @@ static void nft_ng_inc_eval(const struct nft_expr *expr,
 		nval = (oval + 1 < priv->modulus) ? oval + 1 : 0;
 	} while (atomic_cmpxchg(&priv->counter, oval, nval) != oval);
 
-	regs->data[priv->dreg] = nval + priv->offset;
+	return nval + priv->offset;
+}
+
+static void nft_ng_inc_eval(const struct nft_expr *expr,
+			    struct nft_regs *regs,
+			    const struct nft_pktinfo *pkt)
+{
+	struct nft_ng_inc *priv = nft_expr_priv(expr);
+
+	regs->data[priv->dreg] = nft_ng_inc_gen(priv);
+}
+
+static void nft_ng_inc_map_eval(const struct nft_expr *expr,
+				struct nft_regs *regs,
+				const struct nft_pktinfo *pkt)
+{
+	struct nft_ng_inc *priv = nft_expr_priv(expr);
+	const struct nft_set *map = priv->map;
+	const struct nft_set_ext *ext;
+	u32 result;
+	bool found;
+
+	result = nft_ng_inc_gen(priv);
+	found = map->ops->lookup(nft_net(pkt), map, &result, &ext);
+
+	if (!found)
+		return;
+
+	nft_data_copy(&regs->data[priv->dreg],
+		      nft_set_ext_data(ext), map->dlen);
 }
 
 static const struct nla_policy nft_ng_policy[NFTA_NG_MAX + 1] = {
@@ -46,6 +73,9 @@ static const struct nla_policy nft_ng_policy[NFTA_NG_MAX + 1] = {
 	[NFTA_NG_MODULUS]	= { .type = NLA_U32 },
 	[NFTA_NG_TYPE]		= { .type = NLA_U32 },
 	[NFTA_NG_OFFSET]	= { .type = NLA_U32 },
+	[NFTA_NG_SET_NAME]	= { .type = NLA_STRING,
+				    .len = NFT_SET_MAXNAMELEN - 1 },
+	[NFTA_NG_SET_ID]	= { .type = NLA_U32 },
 };
 
 static int nft_ng_inc_init(const struct nft_ctx *ctx,
@@ -71,6 +101,22 @@ static int nft_ng_inc_init(const struct nft_ctx *ctx,
 					   NFT_DATA_VALUE, sizeof(u32));
 }
 
+static int nft_ng_inc_map_init(const struct nft_ctx *ctx,
+			       const struct nft_expr *expr,
+			       const struct nlattr * const tb[])
+{
+	struct nft_ng_inc *priv = nft_expr_priv(expr);
+	u8 genmask = nft_genmask_next(ctx->net);
+
+	nft_ng_inc_init(ctx, expr, tb);
+
+	priv->map = nft_set_lookup_global(ctx->net, ctx->table,
+					  tb[NFTA_NG_SET_NAME],
+					  tb[NFTA_NG_SET_ID], genmask);
+
+	return PTR_ERR_OR_ZERO(priv->map);
+}
+
 static int nft_ng_dump(struct sk_buff *skb, enum nft_registers dreg,
 		       u32 modulus, enum nft_ng_types type, u32 offset)
 {
@@ -97,22 +143,63 @@ static int nft_ng_inc_dump(struct sk_buff *skb, const struct nft_expr *expr)
 			   priv->offset);
 }
 
+static int nft_ng_inc_map_dump(struct sk_buff *skb,
+			       const struct nft_expr *expr)
+{
+	const struct nft_ng_inc *priv = nft_expr_priv(expr);
+
+	if (nft_ng_dump(skb, priv->dreg, priv->modulus,
+			NFT_NG_INCREMENTAL, priv->offset) ||
+	    nla_put_string(skb, NFTA_NG_SET_NAME, priv->map->name))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
 struct nft_ng_random {
 	enum nft_registers      dreg:8;
 	u32			modulus;
 	u32			offset;
+	struct nft_set		*map;
 };
 
+static u32 nft_ng_random_gen(struct nft_ng_random *priv)
+{
+	struct rnd_state *state = this_cpu_ptr(&nft_numgen_prandom_state);
+
+	return reciprocal_scale(prandom_u32_state(state), priv->modulus) +
+	       priv->offset;
+}
+
 static void nft_ng_random_eval(const struct nft_expr *expr,
 			       struct nft_regs *regs,
 			       const struct nft_pktinfo *pkt)
 {
 	struct nft_ng_random *priv = nft_expr_priv(expr);
-	struct rnd_state *state = this_cpu_ptr(&nft_numgen_prandom_state);
-	u32 val;
 
-	val = reciprocal_scale(prandom_u32_state(state), priv->modulus);
-	regs->data[priv->dreg] = val + priv->offset;
+	regs->data[priv->dreg] = nft_ng_random_gen(priv);
+}
+
+static void nft_ng_random_map_eval(const struct nft_expr *expr,
+				   struct nft_regs *regs,
+				   const struct nft_pktinfo *pkt)
+{
+	struct nft_ng_random *priv = nft_expr_priv(expr);
+	const struct nft_set *map = priv->map;
+	const struct nft_set_ext *ext;
+	u32 result;
+	bool found;
+
+	result = nft_ng_random_gen(priv);
+	found = map->ops->lookup(nft_net(pkt), map, &result, &ext);
+	if (!found)
+		return;
+
+	nft_data_copy(&regs->data[priv->dreg],
+		      nft_set_ext_data(ext), map->dlen);
 }
 
 static int nft_ng_random_init(const struct nft_ctx *ctx,
@@ -139,6 +226,23 @@ static int nft_ng_random_init(const struct nft_ctx *ctx,
 					   NFT_DATA_VALUE, sizeof(u32));
 }
 
+static int nft_ng_random_map_init(const struct nft_ctx *ctx,
+				  const struct nft_expr *expr,
+				  const struct nlattr * const tb[])
+{
+	struct nft_ng_random *priv = nft_expr_priv(expr);
+	u8 genmask = nft_genmask_next(ctx->net);
+
+	nft_ng_random_init(ctx, expr, tb);
+	priv->map = nft_set_lookup_global(ctx->net, ctx->table,
+					  tb[NFTA_NG_SET_NAME],
+					  tb[NFTA_NG_SET_ID], genmask);
+	if (IS_ERR(priv->map))
+		return PTR_ERR(priv->map);
+
+	return 0;
+}
+
 static int nft_ng_random_dump(struct sk_buff *skb, const struct nft_expr *expr)
 {
 	const struct nft_ng_random *priv = nft_expr_priv(expr);
@@ -147,6 +251,22 @@ static int nft_ng_random_dump(struct sk_buff *skb, const struct nft_expr *expr)
 			   priv->offset);
 }
 
+static int nft_ng_random_map_dump(struct sk_buff *skb,
+				  const struct nft_expr *expr)
+{
+	const struct nft_ng_random *priv = nft_expr_priv(expr);
+
+	if (nft_ng_dump(skb, priv->dreg, priv->modulus,
+			NFT_NG_RANDOM, priv->offset) ||
+	    nla_put_string(skb, NFTA_NG_SET_NAME, priv->map->name))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
 static struct nft_expr_type nft_ng_type;
 static const struct nft_expr_ops nft_ng_inc_ops = {
 	.type		= &nft_ng_type,
@@ -156,6 +276,14 @@ static const struct nft_expr_ops nft_ng_inc_ops = {
 	.dump		= nft_ng_inc_dump,
 };
 
+static const struct nft_expr_ops nft_ng_inc_map_ops = {
+	.type		= &nft_ng_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_ng_inc)),
+	.eval		= nft_ng_inc_map_eval,
+	.init		= nft_ng_inc_map_init,
+	.dump		= nft_ng_inc_map_dump,
+};
+
 static const struct nft_expr_ops nft_ng_random_ops = {
 	.type		= &nft_ng_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_ng_random)),
@@ -164,6 +292,14 @@ static const struct nft_expr_ops nft_ng_random_ops = {
 	.dump		= nft_ng_random_dump,
 };
 
+static const struct nft_expr_ops nft_ng_random_map_ops = {
+	.type		= &nft_ng_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_ng_random)),
+	.eval		= nft_ng_random_map_eval,
+	.init		= nft_ng_random_map_init,
+	.dump		= nft_ng_random_map_dump,
+};
+
 static const struct nft_expr_ops *
 nft_ng_select_ops(const struct nft_ctx *ctx, const struct nlattr * const tb[])
 {
@@ -178,8 +314,12 @@ nft_ng_select_ops(const struct nft_ctx *ctx, const struct nlattr * const tb[])
 
 	switch (type) {
 	case NFT_NG_INCREMENTAL:
+		if (tb[NFTA_NG_SET_NAME])
+			return &nft_ng_inc_map_ops;
 		return &nft_ng_inc_ops;
 	case NFT_NG_RANDOM:
+		if (tb[NFTA_NG_SET_NAME])
+			return &nft_ng_random_map_ops;
 		return &nft_ng_random_ops;
 	}