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

Pull networking updates from David Miller:
 "Highlights:

   1) Fix the iwlwifi regression, from Johannes Berg.

   2) Support BSS coloring and 802.11 encapsulation offloading in
      hardware, from John Crispin.

   3) Fix some potential Spectre issues in qtnfmac, from Sergey
      Matyukevich.

   4) Add TTL decrement action to openvswitch, from Matteo Croce.

   5) Allow paralleization through flow_action setup by not taking the
      RTNL mutex, from Vlad Buslov.

   6) A lot of zero-length array to flexible-array conversions, from
      Gustavo A. R. Silva.

   7) Align XDP statistics names across several drivers for consistency,
      from Lorenzo Bianconi.

   8) Add various pieces of infrastructure for offloading conntrack, and
      make use of it in mlx5 driver, from Paul Blakey.

   9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.

  10) Lots of parallelization improvements during configuration changes
      in mlxsw driver, from Ido Schimmel.

  11) Add support to devlink for generic packet traps, which report
      packets dropped during ACL processing. And use them in mlxsw
      driver. From Jiri Pirko.

  12) Support bcmgenet on ACPI, from Jeremy Linton.

  13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
      Starovoitov, and your's truly.

  14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.

  15) Fix sysfs permissions when network devices change namespaces, from
      Christian Brauner.

  16) Add a flags element to ethtool_ops so that drivers can more simply
      indicate which coalescing parameters they actually support, and
      therefore the generic layer can validate the user's ethtool
      request. Use this in all drivers, from Jakub Kicinski.

  17) Offload FIFO qdisc in mlxsw, from Petr Machata.

  18) Support UDP sockets in sockmap, from Lorenz Bauer.

  19) Fix stretch ACK bugs in several TCP congestion control modules,
      from Pengcheng Yang.

  20) Support virtual functiosn in octeontx2 driver, from Tomasz
      Duszynski.

  21) Add region operations for devlink and use it in ice driver to dump
      NVM contents, from Jacob Keller.

  22) Add support for hw offload of MACSEC, from Antoine Tenart.

  23) Add support for BPF programs that can be attached to LSM hooks,
      from KP Singh.

  24) Support for multiple paths, path managers, and counters in MPTCP.
      From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
      and others.

  25) More progress on adding the netlink interface to ethtool, from
      Michal Kubecek"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
  net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
  cxgb4/chcr: nic-tls stats in ethtool
  net: dsa: fix oops while probing Marvell DSA switches
  net/bpfilter: remove superfluous testing message
  net: macb: Fix handling of fixed-link node
  net: dsa: ksz: Select KSZ protocol tag
  netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
  net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
  net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
  net: stmmac: create dwmac-intel.c to contain all Intel platform
  net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
  net: dsa: bcm_sf2: Add support for matching VLAN TCI
  net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
  net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
  net: dsa: bcm_sf2: Disable learning for ASP port
  net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
  net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
  net: dsa: b53: Restore VLAN entries upon (re)configuration
  net: dsa: bcm_sf2: Fix overflow checks
  hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
  ...

1 files changed, 73 insertions, 4 deletions

diff --git a/include/net/macsec.h b/include/net/macsec.h
index 92e43db8b566..52874cdfe226 100644
--- a/include/net/macsec.h
+++ b/include/net/macsec.h
@@ -11,18 +11,48 @@
 #include <uapi/linux/if_link.h>
 #include <uapi/linux/if_macsec.h>
 
-typedef u64 __bitwise sci_t;
+#define MACSEC_DEFAULT_PN_LEN 4
+#define MACSEC_XPN_PN_LEN 8
 
+#define MACSEC_SALT_LEN 12
 #define MACSEC_NUM_AN 4 /* 2 bits for the association number */
 
+typedef u64 __bitwise sci_t;
+typedef u32 __bitwise ssci_t;
+
+typedef union salt {
+	struct {
+		u32 ssci;
+		u64 pn;
+	} __packed;
+	u8 bytes[MACSEC_SALT_LEN];
+} __packed salt_t;
+
+typedef union pn {
+	struct {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+		u32 lower;
+		u32 upper;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+		u32 upper;
+		u32 lower;
+#else
+#error	"Please fix <asm/byteorder.h>"
+#endif
+	};
+	u64 full64;
+} pn_t;
+
 /**
  * struct macsec_key - SA key
  * @id: user-provided key identifier
  * @tfm: crypto struct, key storage
+ * @salt: salt used to generate IV in XPN cipher suites
  */
 struct macsec_key {
 	u8 id[MACSEC_KEYID_LEN];
 	struct crypto_aead *tfm;
+	salt_t salt;
 };
 
 struct macsec_rx_sc_stats {
@@ -58,18 +88,34 @@ struct macsec_tx_sc_stats {
 	__u64 OutOctetsEncrypted;
 };
 
+struct macsec_dev_stats {
+	__u64 OutPktsUntagged;
+	__u64 InPktsUntagged;
+	__u64 OutPktsTooLong;
+	__u64 InPktsNoTag;
+	__u64 InPktsBadTag;
+	__u64 InPktsUnknownSCI;
+	__u64 InPktsNoSCI;
+	__u64 InPktsOverrun;
+};
+
 /**
  * struct macsec_rx_sa - receive secure association
  * @active:
  * @next_pn: packet number expected for the next packet
  * @lock: protects next_pn manipulations
  * @key: key structure
+ * @ssci: short secure channel identifier
  * @stats: per-SA stats
  */
 struct macsec_rx_sa {
 	struct macsec_key key;
+	ssci_t ssci;
 	spinlock_t lock;
-	u32 next_pn;
+	union {
+		pn_t next_pn_halves;
+		u64 next_pn;
+	};
 	refcount_t refcnt;
 	bool active;
 	struct macsec_rx_sa_stats __percpu *stats;
@@ -110,12 +156,17 @@ struct macsec_rx_sc {
  * @next_pn: packet number to use for the next packet
  * @lock: protects next_pn manipulations
  * @key: key structure
+ * @ssci: short secure channel identifier
  * @stats: per-SA stats
  */
 struct macsec_tx_sa {
 	struct macsec_key key;
+	ssci_t ssci;
 	spinlock_t lock;
-	u32 next_pn;
+	union {
+		pn_t next_pn_halves;
+		u64 next_pn;
+	};
 	refcount_t refcnt;
 	bool active;
 	struct macsec_tx_sa_stats __percpu *stats;
@@ -152,6 +203,7 @@ struct macsec_tx_sc {
  * @key_len: length of keys used by the cipher suite
  * @icv_len: length of ICV used by the cipher suite
  * @validate_frames: validation mode
+ * @xpn: enable XPN for this SecY
  * @operational: MAC_Operational flag
  * @protect_frames: enable protection for this SecY
  * @replay_protect: enable packet number checks on receive
@@ -166,6 +218,7 @@ struct macsec_secy {
 	u16 key_len;
 	u16 icv_len;
 	enum macsec_validation_type validate_frames;
+	bool xpn;
 	bool operational;
 	bool protect_frames;
 	bool replay_protect;
@@ -178,7 +231,10 @@ struct macsec_secy {
  * struct macsec_context - MACsec context for hardware offloading
  */
 struct macsec_context {
-	struct phy_device *phydev;
+	union {
+		struct net_device *netdev;
+		struct phy_device *phydev;
+	};
 	enum macsec_offload offload;
 
 	struct macsec_secy *secy;
@@ -191,6 +247,13 @@ struct macsec_context {
 			struct macsec_tx_sa *tx_sa;
 		};
 	} sa;
+	union {
+		struct macsec_tx_sc_stats *tx_sc_stats;
+		struct macsec_tx_sa_stats *tx_sa_stats;
+		struct macsec_rx_sc_stats *rx_sc_stats;
+		struct macsec_rx_sa_stats *rx_sa_stats;
+		struct macsec_dev_stats  *dev_stats;
+	} stats;
 
 	u8 prepare:1;
 };
@@ -217,6 +280,12 @@ struct macsec_ops {
 	int (*mdo_add_txsa)(struct macsec_context *ctx);
 	int (*mdo_upd_txsa)(struct macsec_context *ctx);
 	int (*mdo_del_txsa)(struct macsec_context *ctx);
+	/* Statistics */
+	int (*mdo_get_dev_stats)(struct macsec_context *ctx);
+	int (*mdo_get_tx_sc_stats)(struct macsec_context *ctx);
+	int (*mdo_get_tx_sa_stats)(struct macsec_context *ctx);
+	int (*mdo_get_rx_sc_stats)(struct macsec_context *ctx);
+	int (*mdo_get_rx_sa_stats)(struct macsec_context *ctx);
 };
 
 void macsec_pn_wrapped(struct macsec_secy *secy, struct macsec_tx_sa *tx_sa);