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

Pull networking updates from David Miller:
 "Highlights:

   1) Support SPI based w5100 devices, from Akinobu Mita.

   2) Partial Segmentation Offload, from Alexander Duyck.

   3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE.

   4) Allow cls_flower stats offload, from Amir Vadai.

   5) Implement bpf blinding, from Daniel Borkmann.

   6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is
      actually using FASYNC these atomics are superfluous.  From Eric
      Dumazet.

   7) Run TCP more preemptibly, also from Eric Dumazet.

   8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e
      driver, from Gal Pressman.

   9) Allow creating ppp devices via rtnetlink, from Guillaume Nault.

  10) Improve BPF usage documentation, from Jesper Dangaard Brouer.

  11) Support tunneling offloads in qed, from Manish Chopra.

  12) aRFS offloading in mlx5e, from Maor Gottlieb.

  13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo
      Leitner.

  14) Add MSG_EOR support to TCP, this allows controlling packet
      coalescing on application record boundaries for more accurate
      socket timestamp sampling.  From Martin KaFai Lau.

  15) Fix alignment of 64-bit netlink attributes across the board, from
      Nicolas Dichtel.

  16) Per-vlan stats in bridging, from Nikolay Aleksandrov.

  17) Several conversions of drivers to ethtool ksettings, from Philippe
      Reynes.

  18) Checksum neutral ILA in ipv6, from Tom Herbert.

  19) Factorize all of the various marvell dsa drivers into one, from
      Vivien Didelot

  20) Add VF support to qed driver, from Yuval Mintz"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits)
  Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
  Revert "phy dp83867: Make rgmii parameters optional"
  r8169: default to 64-bit DMA on recent PCIe chips
  phy dp83867: Make rgmii parameters optional
  phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
  bpf: arm64: remove callee-save registers use for tmp registers
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  switchdev: pass pointer to fib_info instead of copy
  net_sched: close another race condition in tcf_mirred_release()
  tipc: fix nametable publication field in nl compat
  drivers: net: Don't print unpopulated net_device name
  qed: add support for dcbx.
  ravb: Add missing free_irq() calls to ravb_close()
  qed: Remove a stray tab
  net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fec-mpc52xx: use phydev from struct net_device
  bpf, doc: fix typo on bpf_asm descriptions
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
  net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fs-enet: use phydev from struct net_device
  ...

1 files changed, 100 insertions, 21 deletions

diff --git a/include/net/netlink.h b/include/net/netlink.h
index 0e3172751755..254a0fc01800 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -98,14 +98,17 @@
  *   nla_put_u8(skb, type, value)	add u8 attribute to skb
  *   nla_put_u16(skb, type, value)	add u16 attribute to skb
  *   nla_put_u32(skb, type, value)	add u32 attribute to skb
- *   nla_put_u64(skb, type, value)	add u64 attribute to skb
+ *   nla_put_u64_64bits(skb, type,
+ *			value, padattr)	add u64 attribute to skb
  *   nla_put_s8(skb, type, value)	add s8 attribute to skb
  *   nla_put_s16(skb, type, value)	add s16 attribute to skb
  *   nla_put_s32(skb, type, value)	add s32 attribute to skb
- *   nla_put_s64(skb, type, value)	add s64 attribute to skb
+ *   nla_put_s64(skb, type, value,
+ *               padattr)		add s64 attribute to skb
  *   nla_put_string(skb, type, str)	add string attribute to skb
  *   nla_put_flag(skb, type)		add flag attribute to skb
- *   nla_put_msecs(skb, type, jiffies)	add msecs attribute to skb
+ *   nla_put_msecs(skb, type, jiffies,
+ *                 padattr)		add msecs attribute to skb
  *   nla_put_in_addr(skb, type, addr)	add IPv4 address attribute to skb
  *   nla_put_in6_addr(skb, type, addr)	add IPv6 address attribute to skb
  *
@@ -244,13 +247,21 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count);
 int nla_memcmp(const struct nlattr *nla, const void *data, size_t size);
 int nla_strcmp(const struct nlattr *nla, const char *str);
 struct nlattr *__nla_reserve(struct sk_buff *skb, int attrtype, int attrlen);
+struct nlattr *__nla_reserve_64bit(struct sk_buff *skb, int attrtype,
+				   int attrlen, int padattr);
 void *__nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
 struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen);
+struct nlattr *nla_reserve_64bit(struct sk_buff *skb, int attrtype,
+				 int attrlen, int padattr);
 void *nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
 void __nla_put(struct sk_buff *skb, int attrtype, int attrlen,
 	       const void *data);
+void __nla_put_64bit(struct sk_buff *skb, int attrtype, int attrlen,
+		     const void *data, int padattr);
 void __nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data);
 int nla_put(struct sk_buff *skb, int attrtype, int attrlen, const void *data);
+int nla_put_64bit(struct sk_buff *skb, int attrtype, int attrlen,
+		  const void *data, int padattr);
 int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data);
 int nla_append(struct sk_buff *skb, int attrlen, const void *data);
 
@@ -837,47 +848,56 @@ static inline int nla_put_le32(struct sk_buff *skb, int attrtype, __le32 value)
 }
 
 /**
- * nla_put_u64 - Add a u64 netlink attribute to a socket buffer
+ * nla_put_u64_64bit - Add a u64 netlink attribute to a skb and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
+static inline int nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
+				    u64 value, int padattr)
 {
-	return nla_put(skb, attrtype, sizeof(u64), &value);
+	return nla_put_64bit(skb, attrtype, sizeof(u64), &value, padattr);
 }
 
 /**
- * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer
+ * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value)
+static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value,
+			       int padattr)
 {
-	return nla_put(skb, attrtype, sizeof(__be64), &value);
+	return nla_put_64bit(skb, attrtype, sizeof(__be64), &value, padattr);
 }
 
 /**
- * nla_put_net64 - Add 64-bit network byte order netlink attribute to a socket buffer
+ * nla_put_net64 - Add 64-bit network byte order nlattr to a skb and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_net64(struct sk_buff *skb, int attrtype, __be64 value)
+static inline int nla_put_net64(struct sk_buff *skb, int attrtype, __be64 value,
+				int padattr)
 {
-	return nla_put_be64(skb, attrtype | NLA_F_NET_BYTEORDER, value);
+	return nla_put_be64(skb, attrtype | NLA_F_NET_BYTEORDER, value,
+			    padattr);
 }
 
 /**
- * nla_put_le64 - Add a __le64 netlink attribute to a socket buffer
+ * nla_put_le64 - Add a __le64 netlink attribute to a socket buffer and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_le64(struct sk_buff *skb, int attrtype, __le64 value)
+static inline int nla_put_le64(struct sk_buff *skb, int attrtype, __le64 value,
+			       int padattr)
 {
-	return nla_put(skb, attrtype, sizeof(__le64), &value);
+	return nla_put_64bit(skb, attrtype, sizeof(__le64), &value, padattr);
 }
 
 /**
@@ -914,14 +934,16 @@ static inline int nla_put_s32(struct sk_buff *skb, int attrtype, s32 value)
 }
 
 /**
- * nla_put_s64 - Add a s64 netlink attribute to a socket buffer
+ * nla_put_s64 - Add a s64 netlink attribute to a socket buffer and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_s64(struct sk_buff *skb, int attrtype, s64 value)
+static inline int nla_put_s64(struct sk_buff *skb, int attrtype, s64 value,
+			      int padattr)
 {
-	return nla_put(skb, attrtype, sizeof(s64), &value);
+	return nla_put_64bit(skb, attrtype, sizeof(s64), &value, padattr);
 }
 
 /**
@@ -947,16 +969,18 @@ static inline int nla_put_flag(struct sk_buff *skb, int attrtype)
 }
 
 /**
- * nla_put_msecs - Add a msecs netlink attribute to a socket buffer
+ * nla_put_msecs - Add a msecs netlink attribute to a skb and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @njiffies: number of jiffies to convert to msecs
+ * @padattr: attribute type for the padding
  */
 static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
-				unsigned long njiffies)
+				unsigned long njiffies, int padattr)
 {
 	u64 tmp = jiffies_to_msecs(njiffies);
-	return nla_put(skb, attrtype, sizeof(u64), &tmp);
+
+	return nla_put_64bit(skb, attrtype, sizeof(u64), &tmp, padattr);
 }
 
 /**
@@ -1231,6 +1255,61 @@ static inline int nla_validate_nested(const struct nlattr *start, int maxtype,
 }
 
 /**
+ * nla_need_padding_for_64bit - test 64-bit alignment of the next attribute
+ * @skb: socket buffer the message is stored in
+ *
+ * Return true if padding is needed to align the next attribute (nla_data()) to
+ * a 64-bit aligned area.
+ */
+static inline bool nla_need_padding_for_64bit(struct sk_buff *skb)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+	/* The nlattr header is 4 bytes in size, that's why we test
+	 * if the skb->data _is_ aligned.  A NOP attribute, plus
+	 * nlattr header for next attribute, will make nla_data()
+	 * 8-byte aligned.
+	 */
+	if (IS_ALIGNED((unsigned long)skb_tail_pointer(skb), 8))
+		return true;
+#endif
+	return false;
+}
+
+/**
+ * nla_align_64bit - 64-bit align the nla_data() of next attribute
+ * @skb: socket buffer the message is stored in
+ * @padattr: attribute type for the padding
+ *
+ * Conditionally emit a padding netlink attribute in order to make
+ * the next attribute we emit have a 64-bit aligned nla_data() area.
+ * This will only be done in architectures which do not have
+ * CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS defined.
+ *
+ * Returns zero on success or a negative error code.
+ */
+static inline int nla_align_64bit(struct sk_buff *skb, int padattr)
+{
+	if (nla_need_padding_for_64bit(skb) &&
+	    !nla_reserve(skb, padattr, 0))
+		return -EMSGSIZE;
+
+	return 0;
+}
+
+/**
+ * nla_total_size_64bit - total length of attribute including padding
+ * @payload: length of payload
+ */
+static inline int nla_total_size_64bit(int payload)
+{
+	return NLA_ALIGN(nla_attr_size(payload))
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+		+ NLA_ALIGN(nla_attr_size(0))
+#endif
+		;
+}
+
+/**
  * nla_for_each_attr - iterate over a stream of attributes
  * @pos: loop counter, set to current attribute
  * @head: head of attribute stream