Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

1 files changed, 206 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
new file mode 100644
index 000000000000..55aa4bf8a27c
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -0,0 +1,206 @@
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
+/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */
+
+#ifndef _PRESTERA_H_
+#define _PRESTERA_H_
+
+#include <linux/notifier.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <net/devlink.h>
+#include <uapi/linux/if_ether.h>
+
+#define PRESTERA_DRV_NAME	"prestera"
+
+#define PRESTERA_DEFAULT_VID    1
+
+struct prestera_fw_rev {
+	u16 maj;
+	u16 min;
+	u16 sub;
+};
+
+struct prestera_port_stats {
+	u64 good_octets_received;
+	u64 bad_octets_received;
+	u64 mac_trans_error;
+	u64 broadcast_frames_received;
+	u64 multicast_frames_received;
+	u64 frames_64_octets;
+	u64 frames_65_to_127_octets;
+	u64 frames_128_to_255_octets;
+	u64 frames_256_to_511_octets;
+	u64 frames_512_to_1023_octets;
+	u64 frames_1024_to_max_octets;
+	u64 excessive_collision;
+	u64 multicast_frames_sent;
+	u64 broadcast_frames_sent;
+	u64 fc_sent;
+	u64 fc_received;
+	u64 buffer_overrun;
+	u64 undersize;
+	u64 fragments;
+	u64 oversize;
+	u64 jabber;
+	u64 rx_error_frame_received;
+	u64 bad_crc;
+	u64 collisions;
+	u64 late_collision;
+	u64 unicast_frames_received;
+	u64 unicast_frames_sent;
+	u64 sent_multiple;
+	u64 sent_deferred;
+	u64 good_octets_sent;
+};
+
+struct prestera_port_caps {
+	u64 supp_link_modes;
+	u8 supp_fec;
+	u8 type;
+	u8 transceiver;
+};
+
+struct prestera_port {
+	struct net_device *dev;
+	struct prestera_switch *sw;
+	struct devlink_port dl_port;
+	u32 id;
+	u32 hw_id;
+	u32 dev_id;
+	u16 fp_id;
+	u16 pvid;
+	bool autoneg;
+	u64 adver_link_modes;
+	u8 adver_fec;
+	struct prestera_port_caps caps;
+	struct list_head list;
+	struct list_head vlans_list;
+	struct {
+		struct prestera_port_stats stats;
+		struct delayed_work caching_dw;
+	} cached_hw_stats;
+};
+
+struct prestera_device {
+	struct device *dev;
+	u8 __iomem *ctl_regs;
+	u8 __iomem *pp_regs;
+	struct prestera_fw_rev fw_rev;
+	void *priv;
+
+	/* called by device driver to handle received packets */
+	void (*recv_pkt)(struct prestera_device *dev);
+
+	/* called by device driver to pass event up to the higher layer */
+	int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size);
+
+	/* called by higher layer to send request to the firmware */
+	int (*send_req)(struct prestera_device *dev, void *in_msg,
+			size_t in_size, void *out_msg, size_t out_size,
+			unsigned int wait);
+};
+
+enum prestera_event_type {
+	PRESTERA_EVENT_TYPE_UNSPEC,
+
+	PRESTERA_EVENT_TYPE_PORT,
+	PRESTERA_EVENT_TYPE_FDB,
+	PRESTERA_EVENT_TYPE_RXTX,
+
+	PRESTERA_EVENT_TYPE_MAX
+};
+
+enum prestera_rxtx_event_id {
+	PRESTERA_RXTX_EVENT_UNSPEC,
+	PRESTERA_RXTX_EVENT_RCV_PKT,
+};
+
+enum prestera_port_event_id {
+	PRESTERA_PORT_EVENT_UNSPEC,
+	PRESTERA_PORT_EVENT_STATE_CHANGED,
+};
+
+struct prestera_port_event {
+	u32 port_id;
+	union {
+		u32 oper_state;
+	} data;
+};
+
+enum prestera_fdb_event_id {
+	PRESTERA_FDB_EVENT_UNSPEC,
+	PRESTERA_FDB_EVENT_LEARNED,
+	PRESTERA_FDB_EVENT_AGED,
+};
+
+struct prestera_fdb_event {
+	u32 port_id;
+	u32 vid;
+	union {
+		u8 mac[ETH_ALEN];
+	} data;
+};
+
+struct prestera_event {
+	u16 id;
+	union {
+		struct prestera_port_event port_evt;
+		struct prestera_fdb_event fdb_evt;
+	};
+};
+
+struct prestera_switchdev;
+struct prestera_rxtx;
+
+struct prestera_switch {
+	struct prestera_device *dev;
+	struct prestera_switchdev *swdev;
+	struct prestera_rxtx *rxtx;
+	struct list_head event_handlers;
+	struct notifier_block netdev_nb;
+	char base_mac[ETH_ALEN];
+	struct list_head port_list;
+	rwlock_t port_list_lock;
+	u32 port_count;
+	u32 mtu_min;
+	u32 mtu_max;
+	u8 id;
+};
+
+struct prestera_rxtx_params {
+	bool use_sdma;
+	u32 map_addr;
+};
+
+#define prestera_dev(sw)		((sw)->dev->dev)
+
+static inline void prestera_write(const struct prestera_switch *sw,
+				  unsigned int reg, u32 val)
+{
+	writel(val, sw->dev->pp_regs + reg);
+}
+
+static inline u32 prestera_read(const struct prestera_switch *sw,
+				unsigned int reg)
+{
+	return readl(sw->dev->pp_regs + reg);
+}
+
+int prestera_device_register(struct prestera_device *dev);
+void prestera_device_unregister(struct prestera_device *dev);
+
+struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
+						 u32 dev_id, u32 hw_id);
+
+int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
+			      u64 adver_link_modes, u8 adver_fec);
+
+struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id);
+
+struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev);
+
+int prestera_port_pvid_set(struct prestera_port *port, u16 vid);
+
+bool prestera_netdev_check(const struct net_device *dev);
+
+#endif /* _PRESTERA_H_ */