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

Pull networking updates from David Miller:

 1) Support offloading wireless authentication to userspace via
    NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.

 2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
    Setup and cleanup of namespaces now all run asynchronously and thus
    performance is significantly increased.

 3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
    Streiff.

 4) Support zerocopy on RDS sockets, from Sowmini Varadhan.

 5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
    Borkmann.

 6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
    Chevallier.

 7) Support grafting of child qdiscs in mlxsw driver, from Nogah
    Frankel.

 8) Add packet forwarding tests to selftests, from Ido Schimmel.

 9) Deal with sub-optimal GSO packets better in BBR congestion control,
    from Eric Dumazet.

10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.

11) Add path MTU tests to selftests, from Stefano Brivio.

12) Various bits of IPSEC offloading support for mlx5, from Aviad
    Yehezkel, Yossi Kuperman, and Saeed Mahameed.

13) Support RSS spreading on ntuple filters in SFC driver, from Edward
    Cree.

14) Lots of sockmap work from John Fastabend. Applications can use eBPF
    to filter sendmsg and sendpage operations.

15) In-kernel receive TLS support, from Dave Watson.

16) Add XDP support to ixgbevf, this is significant because it should
    allow optimized XDP usage in various cloud environments. From Tony
    Nguyen.

17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
    Venkataramanan et al.

18) IP fragmentation match offload support in nfp driver, from Pieter
    Jansen van Vuuren.

19) Support XDP redirect in i40e driver, from Björn Töpel.

20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
    tracepoints in their raw form, from Alexei Starovoitov.

21) Lots of striding RQ improvements to mlx5 driver with many
    performance improvements, from Tariq Toukan.

22) Use rhashtable for inet frag reassembly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
  net: mvneta: improve suspend/resume
  net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
  ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
  net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
  net: bgmac: Correctly annotate register space
  route: check sysctl_fib_multipath_use_neigh earlier than hash
  fix typo in command value in drivers/net/phy/mdio-bitbang.
  sky2: Increase D3 delay to sky2 stops working after suspend
  net/mlx5e: Set EQE based as default TX interrupt moderation mode
  ibmvnic: Disable irqs before exiting reset from closed state
  net: sched: do not emit messages while holding spinlock
  vlan: also check phy_driver ts_info for vlan's real device
  Bluetooth: Mark expected switch fall-throughs
  Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
  Bluetooth: btrsi: remove unused including <linux/version.h>
  Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
  sh_eth: kill useless check in __sh_eth_get_regs()
  sh_eth: add sh_eth_cpu_data::no_xdfar flag
  ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
  ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
  ...

1 files changed, 131 insertions, 4 deletions

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 3dba6e90adcf..80490f66bc06 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -15,7 +15,10 @@
 #include <linux/if_vlan.h>
 #include <linux/irq.h>
 #include <linux/gpio/consumer.h>
+#include <linux/kthread.h>
 #include <linux/phy.h>
+#include <linux/ptp_clock_kernel.h>
+#include <linux/timecounter.h>
 #include <net/dsa.h>
 
 #ifndef UINT64_MAX
@@ -39,6 +42,8 @@
 #define MV88E6XXX_MAX_PVT_SWITCHES	32
 #define MV88E6XXX_MAX_PVT_PORTS		16
 
+#define MV88E6XXX_MAX_GPIO	16
+
 enum mv88e6xxx_egress_mode {
 	MV88E6XXX_EGRESS_MODE_UNMODIFIED,
 	MV88E6XXX_EGRESS_MODE_UNTAGGED,
@@ -105,6 +110,8 @@ struct mv88e6xxx_info {
 	const char *name;
 	unsigned int num_databases;
 	unsigned int num_ports;
+	unsigned int num_internal_phys;
+	unsigned int num_gpio;
 	unsigned int max_vid;
 	unsigned int port_base_addr;
 	unsigned int global1_addr;
@@ -126,6 +133,9 @@ struct mv88e6xxx_info {
 	 */
 	u8 atu_move_port_mask;
 	const struct mv88e6xxx_ops *ops;
+
+	/* Supports PTP */
+	bool ptp_support;
 };
 
 struct mv88e6xxx_atu_entry {
@@ -146,6 +156,8 @@ struct mv88e6xxx_vtu_entry {
 
 struct mv88e6xxx_bus_ops;
 struct mv88e6xxx_irq_ops;
+struct mv88e6xxx_gpio_ops;
+struct mv88e6xxx_avb_ops;
 
 struct mv88e6xxx_irq {
 	u16 masked;
@@ -154,6 +166,41 @@ struct mv88e6xxx_irq {
 	unsigned int nirqs;
 };
 
+/* state flags for mv88e6xxx_port_hwtstamp::state */
+enum {
+	MV88E6XXX_HWTSTAMP_ENABLED,
+	MV88E6XXX_HWTSTAMP_TX_IN_PROGRESS,
+};
+
+struct mv88e6xxx_port_hwtstamp {
+	/* Port index */
+	int port_id;
+
+	/* Timestamping state */
+	unsigned long state;
+
+	/* Resources for receive timestamping */
+	struct sk_buff_head rx_queue;
+	struct sk_buff_head rx_queue2;
+
+	/* Resources for transmit timestamping */
+	unsigned long tx_tstamp_start;
+	struct sk_buff *tx_skb;
+	u16 tx_seq_id;
+
+	/* Current timestamp configuration */
+	struct hwtstamp_config tstamp_config;
+};
+
+struct mv88e6xxx_port {
+	u64 serdes_stats[2];
+	u64 atu_member_violation;
+	u64 atu_miss_violation;
+	u64 atu_full_violation;
+	u64 vtu_member_violation;
+	u64 vtu_miss_violation;
+};
+
 struct mv88e6xxx_chip {
 	const struct mv88e6xxx_info *info;
 
@@ -207,8 +254,34 @@ struct mv88e6xxx_chip {
 	int irq;
 	int device_irq;
 	int watchdog_irq;
+
 	int atu_prob_irq;
 	int vtu_prob_irq;
+	struct kthread_worker *kworker;
+	struct kthread_delayed_work irq_poll_work;
+
+	/* GPIO resources */
+	u8 gpio_data[2];
+
+	/* This cyclecounter abstracts the switch PTP time.
+	 * reg_lock must be held for any operation that read()s.
+	 */
+	struct cyclecounter	tstamp_cc;
+	struct timecounter	tstamp_tc;
+	struct delayed_work	overflow_work;
+
+	struct ptp_clock	*ptp_clock;
+	struct ptp_clock_info	ptp_clock_info;
+	struct delayed_work	tai_event_work;
+	struct ptp_pin_desc	pin_config[MV88E6XXX_MAX_GPIO];
+	u16 trig_config;
+	u16 evcap_config;
+
+	/* Per-port timestamping resources. */
+	struct mv88e6xxx_port_hwtstamp port_hwtstamp[DSA_MAX_PORTS];
+
+	/* Array of port structures. */
+	struct mv88e6xxx_port ports[DSA_MAX_PORTS];
 };
 
 struct mv88e6xxx_bus_ops {
@@ -327,9 +400,9 @@ struct mv88e6xxx_ops {
 
 	/* Return the number of strings describing statistics */
 	int (*stats_get_sset_count)(struct mv88e6xxx_chip *chip);
-	void (*stats_get_strings)(struct mv88e6xxx_chip *chip,  uint8_t *data);
-	void (*stats_get_stats)(struct mv88e6xxx_chip *chip,  int port,
-				uint64_t *data);
+	int (*stats_get_strings)(struct mv88e6xxx_chip *chip,  uint8_t *data);
+	int (*stats_get_stats)(struct mv88e6xxx_chip *chip,  int port,
+			       uint64_t *data);
 	int (*set_cpu_port)(struct mv88e6xxx_chip *chip, int port);
 	int (*set_egress_port)(struct mv88e6xxx_chip *chip, int port);
 	const struct mv88e6xxx_irq_ops *watchdog_ops;
@@ -339,11 +412,24 @@ struct mv88e6xxx_ops {
 	/* Power on/off a SERDES interface */
 	int (*serdes_power)(struct mv88e6xxx_chip *chip, int port, bool on);
 
+	/* Statistics from the SERDES interface */
+	int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port);
+	int (*serdes_get_strings)(struct mv88e6xxx_chip *chip,  int port,
+				  uint8_t *data);
+	int (*serdes_get_stats)(struct mv88e6xxx_chip *chip,  int port,
+				uint64_t *data);
+
 	/* VLAN Translation Unit operations */
 	int (*vtu_getnext)(struct mv88e6xxx_chip *chip,
 			   struct mv88e6xxx_vtu_entry *entry);
 	int (*vtu_loadpurge)(struct mv88e6xxx_chip *chip,
 			     struct mv88e6xxx_vtu_entry *entry);
+
+	/* GPIO operations */
+	const struct mv88e6xxx_gpio_ops *gpio_ops;
+
+	/* Interface to the AVB/PTP registers */
+	const struct mv88e6xxx_avb_ops *avb_ops;
 };
 
 struct mv88e6xxx_irq_ops {
@@ -355,13 +441,49 @@ struct mv88e6xxx_irq_ops {
 	void (*irq_free)(struct mv88e6xxx_chip *chip);
 };
 
+struct mv88e6xxx_gpio_ops {
+	/* Get/set data on GPIO pin */
+	int (*get_data)(struct mv88e6xxx_chip *chip, unsigned int pin);
+	int (*set_data)(struct mv88e6xxx_chip *chip, unsigned int pin,
+			int value);
+
+	/* get/set GPIO direction */
+	int (*get_dir)(struct mv88e6xxx_chip *chip, unsigned int pin);
+	int (*set_dir)(struct mv88e6xxx_chip *chip, unsigned int pin,
+		       bool input);
+
+	/* get/set GPIO pin control */
+	int (*get_pctl)(struct mv88e6xxx_chip *chip, unsigned int pin,
+			int *func);
+	int (*set_pctl)(struct mv88e6xxx_chip *chip, unsigned int pin,
+			int func);
+};
+
+struct mv88e6xxx_avb_ops {
+	/* Access port-scoped Precision Time Protocol registers */
+	int (*port_ptp_read)(struct mv88e6xxx_chip *chip, int port, int addr,
+			     u16 *data, int len);
+	int (*port_ptp_write)(struct mv88e6xxx_chip *chip, int port, int addr,
+			      u16 data);
+
+	/* Access global Precision Time Protocol registers */
+	int (*ptp_read)(struct mv88e6xxx_chip *chip, int addr, u16 *data,
+			int len);
+	int (*ptp_write)(struct mv88e6xxx_chip *chip, int addr, u16 data);
+
+	/* Access global Time Application Interface registers */
+	int (*tai_read)(struct mv88e6xxx_chip *chip, int addr, u16 *data,
+			int len);
+	int (*tai_write)(struct mv88e6xxx_chip *chip, int addr, u16 data);
+};
+
 #define STATS_TYPE_PORT		BIT(0)
 #define STATS_TYPE_BANK0	BIT(1)
 #define STATS_TYPE_BANK1	BIT(2)
 
 struct mv88e6xxx_hw_stat {
 	char string[ETH_GSTRING_LEN];
-	int sizeof_stat;
+	size_t size;
 	int reg;
 	int type;
 };
@@ -386,6 +508,11 @@ static inline u16 mv88e6xxx_port_mask(struct mv88e6xxx_chip *chip)
 	return GENMASK(mv88e6xxx_num_ports(chip) - 1, 0);
 }
 
+static inline unsigned int mv88e6xxx_num_gpio(struct mv88e6xxx_chip *chip)
+{
+	return chip->info->num_gpio;
+}
+
 int mv88e6xxx_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val);
 int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val);
 int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg,