Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Jakub Kicinski:
 "WiFi 7 and sendpage changes are the biggest pieces of work for this
  release. The latter will definitely require fixes but I think that we
  got it to a reasonable point.

  Core:

   - Rework the sendpage & splice implementations

     Instead of feeding data into sockets page by page extend sendmsg
     handlers to support taking a reference on the data, controlled by a
     new flag called MSG_SPLICE_PAGES

     Rework the handling of unexpected-end-of-file to invoke an
     additional callback instead of trying to predict what the right
     combination of MORE/NOTLAST flags is

     Remove the MSG_SENDPAGE_NOTLAST flag completely

   - Implement SCM_PIDFD, a new type of CMSG type analogous to
     SCM_CREDENTIALS, but it contains pidfd instead of plain pid

   - Enable socket busy polling with CONFIG_RT

   - Improve reliability and efficiency of reporting for ref_tracker

   - Auto-generate a user space C library for various Netlink families

  Protocols:

   - Allow TCP to shrink the advertised window when necessary, prevent
     sk_rcvbuf auto-tuning from growing the window all the way up to
     tcp_rmem[2]

   - Use per-VMA locking for "page-flipping" TCP receive zerocopy

   - Prepare TCP for device-to-device data transfers, by making sure
     that payloads are always attached to skbs as page frags

   - Make the backoff time for the first N TCP SYN retransmissions
     linear. Exponential backoff is unnecessarily conservative

   - Create a new MPTCP getsockopt to retrieve all info
     (MPTCP_FULL_INFO)

   - Avoid waking up applications using TLS sockets until we have a full
     record

   - Allow using kernel memory for protocol ioctl callbacks, paving the
     way to issuing ioctls over io_uring

   - Add nolocalbypass option to VxLAN, forcing packets to be fully
     encapsulated even if they are destined for a local IP address

   - Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
     in-kernel ECMP implementation (e.g. Open vSwitch) select the same
     link for all packets. Support L4 symmetric hashing in Open vSwitch

   - PPPoE: make number of hash bits configurable

   - Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
     (ipconfig)

   - Add layer 2 miss indication and filtering, allowing higher layers
     (e.g. ACL filters) to make forwarding decisions based on whether
     packet matched forwarding state in lower devices (bridge)

   - Support matching on Connectivity Fault Management (CFM) packets

   - Hide the "link becomes ready" IPv6 messages by demoting their
     printk level to debug

   - HSR: don't enable promiscuous mode if device offloads the proto

   - Support active scanning in IEEE 802.15.4

   - Continue work on Multi-Link Operation for WiFi 7

  BPF:

   - Add precision propagation for subprogs and callbacks. This allows
     maintaining verification efficiency when subprograms are used, or
     in fact passing the verifier at all for complex programs,
     especially those using open-coded iterators

   - Improve BPF's {g,s}setsockopt() length handling. Previously BPF
     assumed the length is always equal to the amount of written data.
     But some protos allow passing a NULL buffer to discover what the
     output buffer *should* be, without writing anything

   - Accept dynptr memory as memory arguments passed to helpers

   - Add routing table ID to bpf_fib_lookup BPF helper

   - Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands

   - Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
     maps as read-only)

   - Show target_{obj,btf}_id in tracing link fdinfo

   - Addition of several new kfuncs (most of the names are
     self-explanatory):
      - Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
        bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
        and bpf_dynptr_clone().
      - bpf_task_under_cgroup()
      - bpf_sock_destroy() - force closing sockets
      - bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs

  Netfilter:

   - Relax set/map validation checks in nf_tables. Allow checking
     presence of an entry in a map without using the value

   - Increase ip_vs_conn_tab_bits range for 64BIT builds

   - Allow updating size of a set

   - Improve NAT tuple selection when connection is closing

  Driver API:

   - Integrate netdev with LED subsystem, to allow configuring HW
     "offloaded" blinking of LEDs based on link state and activity
     (i.e. packets coming in and out)

   - Support configuring rate selection pins of SFP modules

   - Factor Clause 73 auto-negotiation code out of the drivers, provide
     common helper routines

   - Add more fool-proof helpers for managing lifetime of MDIO devices
     associated with the PCS layer

   - Allow drivers to report advanced statistics related to Time Aware
     scheduler offload (taprio)

   - Allow opting out of VF statistics in link dump, to allow more VFs
     to fit into the message

   - Split devlink instance and devlink port operations

  New hardware / drivers:

   - Ethernet:
      - Synopsys EMAC4 IP support (stmmac)
      - Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
      - Marvell 88E6250 7 port switches
      - Microchip LAN8650/1 Rev.B0 PHYs
      - MediaTek MT7981/MT7988 built-in 1GE PHY driver

   - WiFi:
      - Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
      - Realtek RTL8723DS (SDIO variant)
      - Realtek RTL8851BE

   - CAN:
      - Fintek F81604

  Drivers:

   - Ethernet NICs:
      - Intel (100G, ice):
         - support dynamic interrupt allocation
         - use meta data match instead of VF MAC addr on slow-path
      - nVidia/Mellanox:
         - extend link aggregation to handle 4, rather than just 2 ports
         - spawn sub-functions without any features by default
      - OcteonTX2:
         - support HTB (Tx scheduling/QoS) offload
         - make RSS hash generation configurable
         - support selecting Rx queue using TC filters
      - Wangxun (ngbe/txgbe):
         - add basic Tx/Rx packet offloads
         - add phylink support (SFP/PCS control)
      - Freescale/NXP (enetc):
         - report TAPRIO packet statistics
      - Solarflare/AMD:
         - support matching on IP ToS and UDP source port of outer
           header
         - VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
         - add devlink dev info support for EF10

   - Virtual NICs:
      - Microsoft vNIC:
         - size the Rx indirection table based on requested
           configuration
         - support VLAN tagging
      - Amazon vNIC:
         - try to reuse Rx buffers if not fully consumed, useful for ARM
           servers running with 16kB pages
      - Google vNIC:
         - support TCP segmentation of >64kB frames

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - enable USXGMII (88E6191X)
      - Microchip:
         - lan966x: add support for Egress Stage 0 ACL engine
         - lan966x: support mapping packet priority to internal switch
           priority (based on PCP or DSCP)

   - Ethernet PHYs:
      - Broadcom PHYs:
         - support for Wake-on-LAN for BCM54210E/B50212E
         - report LPI counter
      - Microsemi PHYs: support RGMII delay configuration (VSC85xx)
      - Micrel PHYs: receive timestamp in the frame (LAN8841)
      - Realtek PHYs: support optional external PHY clock
      - Altera TSE PCS: merge the driver into Lynx PCS which it is a
        variant of

   - CAN: Kvaser PCIEcan:
      - support packet timestamping

   - WiFi:
      - Intel (iwlwifi):
         - major update for new firmware and Multi-Link Operation (MLO)
         - configuration rework to drop test devices and split the
           different families
         - support for segmented PNVM images and power tables
         - new vendor entries for PPAG (platform antenna gain) feature
      - Qualcomm 802.11ax (ath11k):
         - Multiple Basic Service Set Identifier (MBSSID) and Enhanced
           MBSSID Advertisement (EMA) support in AP mode
         - support factory test mode
      - RealTek (rtw89):
         - add RSSI based antenna diversity
         - support U-NII-4 channels on 5 GHz band
      - RealTek (rtl8xxxu):
         - AP mode support for 8188f
         - support USB RX aggregation for the newer chips"

* tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1602 commits)
  net: scm: introduce and use scm_recv_unix helper
  af_unix: Skip SCM_PIDFD if scm->pid is NULL.
  net: lan743x: Simplify comparison
  netlink: Add __sock_i_ino() for __netlink_diag_dump().
  net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
  Revert "af_unix: Call scm_recv() only after scm_set_cred()."
  phylink: ReST-ify the phylink_pcs_neg_mode() kdoc
  libceph: Partially revert changes to support MSG_SPLICE_PAGES
  net: phy: mscc: fix packet loss due to RGMII delays
  net: mana: use vmalloc_array and vcalloc
  net: enetc: use vmalloc_array and vcalloc
  ionic: use vmalloc_array and vcalloc
  pds_core: use vmalloc_array and vcalloc
  gve: use vmalloc_array and vcalloc
  octeon_ep: use vmalloc_array and vcalloc
  net: usb: qmi_wwan: add u-blox 0x1312 composition
  perf trace: fix MSG_SPLICE_PAGES build error
  ipvlan: Fix return value of ipvlan_queue_xmit()
  netfilter: nf_tables: fix underflow in chain reference counter
  netfilter: nf_tables: unbind non-anonymous set if rule construction fails
  ...

1 files changed, 111 insertions, 127 deletions

diff --git a/include/net/devlink.h b/include/net/devlink.h
index 6a942e70e451..9a3c51aa6e81 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -123,6 +123,7 @@ struct devlink_port {
 	struct list_head list;
 	struct list_head region_list;
 	struct devlink *devlink;
+	const struct devlink_port_ops *ops;
 	unsigned int index;
 	spinlock_t type_lock; /* Protects type and type_eth/ib
 			       * structures consistency.
@@ -1261,7 +1262,7 @@ struct devlink_ops {
 	/**
 	 * @supported_flash_update_params:
 	 * mask of parameters supported by the driver's .flash_update
-	 * implemementation.
+	 * implementation.
 	 */
 	u32 supported_flash_update_params;
 	unsigned long reload_actions;
@@ -1273,12 +1274,6 @@ struct devlink_ops {
 	int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
 			 enum devlink_reload_limit limit, u32 *actions_performed,
 			 struct netlink_ext_ack *extack);
-	int (*port_type_set)(struct devlink_port *devlink_port,
-			     enum devlink_port_type port_type);
-	int (*port_split)(struct devlink *devlink, struct devlink_port *port,
-			  unsigned int count, struct netlink_ext_ack *extack);
-	int (*port_unsplit)(struct devlink *devlink, struct devlink_port *port,
-			    struct netlink_ext_ack *extack);
 	int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
 			   u16 pool_index,
 			   struct devlink_sb_pool_info *pool_info);
@@ -1435,80 +1430,17 @@ struct devlink_ops {
 					const struct devlink_trap_policer *policer,
 					u64 *p_drops);
 	/**
-	 * @port_function_hw_addr_get: Port function's hardware address get function.
-	 *
-	 * Should be used by device drivers to report the hardware address of a function managed
-	 * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
-	 * function handling for a particular port.
-	 *
-	 * Note: @extack can be NULL when port notifier queries the port function.
-	 */
-	int (*port_function_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
-					 int *hw_addr_len,
-					 struct netlink_ext_ack *extack);
-	/**
-	 * @port_function_hw_addr_set: Port function's hardware address set function.
-	 *
-	 * Should be used by device drivers to set the hardware address of a function managed
-	 * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
-	 * function handling for a particular port.
-	 */
-	int (*port_function_hw_addr_set)(struct devlink_port *port,
-					 const u8 *hw_addr, int hw_addr_len,
-					 struct netlink_ext_ack *extack);
-	/**
-	 * @port_fn_roce_get: Port function's roce get function.
-	 *
-	 * Query RoCE state of a function managed by the devlink port.
-	 * Return -EOPNOTSUPP if port function RoCE handling is not supported.
-	 */
-	int (*port_fn_roce_get)(struct devlink_port *devlink_port,
-				bool *is_enable,
-				struct netlink_ext_ack *extack);
-	/**
-	 * @port_fn_roce_set: Port function's roce set function.
-	 *
-	 * Enable/Disable the RoCE state of a function managed by the devlink
-	 * port.
-	 * Return -EOPNOTSUPP if port function RoCE handling is not supported.
-	 */
-	int (*port_fn_roce_set)(struct devlink_port *devlink_port,
-				bool enable, struct netlink_ext_ack *extack);
-	/**
-	 * @port_fn_migratable_get: Port function's migratable get function.
-	 *
-	 * Query migratable state of a function managed by the devlink port.
-	 * Return -EOPNOTSUPP if port function migratable handling is not
-	 * supported.
-	 */
-	int (*port_fn_migratable_get)(struct devlink_port *devlink_port,
-				      bool *is_enable,
-				      struct netlink_ext_ack *extack);
-	/**
-	 * @port_fn_migratable_set: Port function's migratable set function.
-	 *
-	 * Enable/Disable migratable state of a function managed by the devlink
-	 * port.
-	 * Return -EOPNOTSUPP if port function migratable handling is not
-	 * supported.
-	 */
-	int (*port_fn_migratable_set)(struct devlink_port *devlink_port,
-				      bool enable,
-				      struct netlink_ext_ack *extack);
-	/**
 	 * port_new() - Add a new port function of a specified flavor
 	 * @devlink: Devlink instance
 	 * @attrs: attributes of the new port
 	 * @extack: extack for reporting error messages
-	 * @new_port_index: index of the new port
+	 * @devlink_port: pointer to store new devlink port pointer
 	 *
 	 * Devlink core will call this device driver function upon user request
 	 * to create a new port function of a specified flavor and optional
 	 * attributes
 	 *
 	 * Notes:
-	 *	- Called without devlink instance lock being held. Drivers must
-	 *	  implement own means of synchronization
 	 *	- On success, drivers must register a port with devlink core
 	 *
 	 * Return: 0 on success, negative value otherwise.
@@ -1516,56 +1448,7 @@ struct devlink_ops {
 	int (*port_new)(struct devlink *devlink,
 			const struct devlink_port_new_attrs *attrs,
 			struct netlink_ext_ack *extack,
-			unsigned int *new_port_index);
-	/**
-	 * port_del() - Delete a port function
-	 * @devlink: Devlink instance
-	 * @port_index: port function index to delete
-	 * @extack: extack for reporting error messages
-	 *
-	 * Devlink core will call this device driver function upon user request
-	 * to delete a previously created port function
-	 *
-	 * Notes:
-	 *	- Called without devlink instance lock being held. Drivers must
-	 *	  implement own means of synchronization
-	 *	- On success, drivers must unregister the corresponding devlink
-	 *	  port
-	 *
-	 * Return: 0 on success, negative value otherwise.
-	 */
-	int (*port_del)(struct devlink *devlink, unsigned int port_index,
-			struct netlink_ext_ack *extack);
-	/**
-	 * port_fn_state_get() - Get the state of a port function
-	 * @devlink: Devlink instance
-	 * @port: The devlink port
-	 * @state: Admin configured state
-	 * @opstate: Current operational state
-	 * @extack: extack for reporting error messages
-	 *
-	 * Reports the admin and operational state of a devlink port function
-	 *
-	 * Return: 0 on success, negative value otherwise.
-	 */
-	int (*port_fn_state_get)(struct devlink_port *port,
-				 enum devlink_port_fn_state *state,
-				 enum devlink_port_fn_opstate *opstate,
-				 struct netlink_ext_ack *extack);
-	/**
-	 * port_fn_state_set() - Set the admin state of a port function
-	 * @devlink: Devlink instance
-	 * @port: The devlink port
-	 * @state: Admin state
-	 * @extack: extack for reporting error messages
-	 *
-	 * Set the admin state of a devlink port function
-	 *
-	 * Return: 0 on success, negative value otherwise.
-	 */
-	int (*port_fn_state_set)(struct devlink_port *port,
-				 enum devlink_port_fn_state state,
-				 struct netlink_ext_ack *extack);
+			struct devlink_port **devlink_port);
 
 	/**
 	 * Rate control callbacks.
@@ -1655,15 +1538,116 @@ void devl_unregister(struct devlink *devlink);
 void devlink_register(struct devlink *devlink);
 void devlink_unregister(struct devlink *devlink);
 void devlink_free(struct devlink *devlink);
+
+/**
+ * struct devlink_port_ops - Port operations
+ * @port_split: Callback used to split the port into multiple ones.
+ * @port_unsplit: Callback used to unsplit the port group back into
+ *		  a single port.
+ * @port_type_set: Callback used to set a type of a port.
+ * @port_del: Callback used to delete selected port along with related function.
+ *	      Devlink core calls this upon user request to delete
+ *	      a port previously created by devlink_ops->port_new().
+ * @port_fn_hw_addr_get: Callback used to set port function's hardware address.
+ *			 Should be used by device drivers to report
+ *			 the hardware address of a function managed
+ *			 by the devlink port.
+ * @port_fn_hw_addr_set: Callback used to set port function's hardware address.
+ *			 Should be used by device drivers to set the hardware
+ *			 address of a function managed by the devlink port.
+ * @port_fn_roce_get: Callback used to get port function's RoCE capability.
+ *		      Should be used by device drivers to report
+ *		      the current state of RoCE capability of a function
+ *		      managed by the devlink port.
+ * @port_fn_roce_set: Callback used to set port function's RoCE capability.
+ *		      Should be used by device drivers to enable/disable
+ *		      RoCE capability of a function managed
+ *		      by the devlink port.
+ * @port_fn_migratable_get: Callback used to get port function's migratable
+ *			    capability. Should be used by device drivers
+ *			    to report the current state of migratable capability
+ *			    of a function managed by the devlink port.
+ * @port_fn_migratable_set: Callback used to set port function's migratable
+ *			    capability. Should be used by device drivers
+ *			    to enable/disable migratable capability of
+ *			    a function managed by the devlink port.
+ * @port_fn_state_get: Callback used to get port function's state.
+ *		       Should be used by device drivers to report
+ *		       the current admin and operational state of a
+ *		       function managed by the devlink port.
+ * @port_fn_state_set: Callback used to get port function's state.
+ *		       Should be used by device drivers set
+ *		       the admin state of a function managed
+ *		       by the devlink port.
+ *
+ * Note: Driver should return -EOPNOTSUPP if it doesn't support
+ * port function (@port_fn_*) handling for a particular port.
+ */
+struct devlink_port_ops {
+	int (*port_split)(struct devlink *devlink, struct devlink_port *port,
+			  unsigned int count, struct netlink_ext_ack *extack);
+	int (*port_unsplit)(struct devlink *devlink, struct devlink_port *port,
+			    struct netlink_ext_ack *extack);
+	int (*port_type_set)(struct devlink_port *devlink_port,
+			     enum devlink_port_type port_type);
+	int (*port_del)(struct devlink *devlink, struct devlink_port *port,
+			struct netlink_ext_ack *extack);
+	int (*port_fn_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
+				   int *hw_addr_len,
+				   struct netlink_ext_ack *extack);
+	int (*port_fn_hw_addr_set)(struct devlink_port *port,
+				   const u8 *hw_addr, int hw_addr_len,
+				   struct netlink_ext_ack *extack);
+	int (*port_fn_roce_get)(struct devlink_port *devlink_port,
+				bool *is_enable,
+				struct netlink_ext_ack *extack);
+	int (*port_fn_roce_set)(struct devlink_port *devlink_port,
+				bool enable, struct netlink_ext_ack *extack);
+	int (*port_fn_migratable_get)(struct devlink_port *devlink_port,
+				      bool *is_enable,
+				      struct netlink_ext_ack *extack);
+	int (*port_fn_migratable_set)(struct devlink_port *devlink_port,
+				      bool enable,
+				      struct netlink_ext_ack *extack);
+	int (*port_fn_state_get)(struct devlink_port *port,
+				 enum devlink_port_fn_state *state,
+				 enum devlink_port_fn_opstate *opstate,
+				 struct netlink_ext_ack *extack);
+	int (*port_fn_state_set)(struct devlink_port *port,
+				 enum devlink_port_fn_state state,
+				 struct netlink_ext_ack *extack);
+};
+
 void devlink_port_init(struct devlink *devlink,
 		       struct devlink_port *devlink_port);
 void devlink_port_fini(struct devlink_port *devlink_port);
-int devl_port_register(struct devlink *devlink,
-		       struct devlink_port *devlink_port,
-		       unsigned int port_index);
-int devlink_port_register(struct devlink *devlink,
-			  struct devlink_port *devlink_port,
-			  unsigned int port_index);
+
+int devl_port_register_with_ops(struct devlink *devlink,
+				struct devlink_port *devlink_port,
+				unsigned int port_index,
+				const struct devlink_port_ops *ops);
+
+static inline int devl_port_register(struct devlink *devlink,
+				     struct devlink_port *devlink_port,
+				     unsigned int port_index)
+{
+	return devl_port_register_with_ops(devlink, devlink_port,
+					   port_index, NULL);
+}
+
+int devlink_port_register_with_ops(struct devlink *devlink,
+				   struct devlink_port *devlink_port,
+				   unsigned int port_index,
+				   const struct devlink_port_ops *ops);
+
+static inline int devlink_port_register(struct devlink *devlink,
+					struct devlink_port *devlink_port,
+					unsigned int port_index)
+{
+	return devlink_port_register_with_ops(devlink, devlink_port,
+					      port_index, NULL);
+}
+
 void devl_port_unregister(struct devlink_port *devlink_port);
 void devlink_port_unregister(struct devlink_port *devlink_port);
 void devlink_port_type_eth_set(struct devlink_port *devlink_port);