Merge tag 'net-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - Enable memcg accounting for various networking objects.

  BPF:

   - Introduce bpf timers.

   - Add perf link and opaque bpf_cookie which the program can read out
     again, to be used in libbpf-based USDT library.

   - Add bpf_task_pt_regs() helper to access user space pt_regs in
     kprobes, to help user space stack unwinding.

   - Add support for UNIX sockets for BPF sockmap.

   - Extend BPF iterator support for UNIX domain sockets.

   - Allow BPF TCP congestion control progs and bpf iterators to call
     bpf_setsockopt(), e.g. to switch to another congestion control
     algorithm.

  Protocols:

   - Support IOAM Pre-allocated Trace with IPv6.

   - Support Management Component Transport Protocol.

   - bridge: multicast: add vlan support.

   - netfilter: add hooks for the SRv6 lightweight tunnel driver.

   - tcp:
       - enable mid-stream window clamping (by user space or BPF)
       - allow data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD
       - more accurate DSACK processing for RACK-TLP

   - mptcp:
       - add full mesh path manager option
       - add partial support for MP_FAIL
       - improve use of backup subflows
       - optimize option processing

   - af_unix: add OOB notification support.

   - ipv6: add IFLA_INET6_RA_MTU to expose MTU value advertised by the
     router.

   - mac80211: Target Wake Time support in AP mode.

   - can: j1939: extend UAPI to notify about RX status.

  Driver APIs:

   - Add page frag support in page pool API.

   - Many improvements to the DSA (distributed switch) APIs.

   - ethtool: extend IRQ coalesce uAPI with timer reset modes.

   - devlink: control which auxiliary devices are created.

   - Support CAN PHYs via the generic PHY subsystem.

   - Proper cross-chip support for tag_8021q.

   - Allow TX forwarding for the software bridge data path to be
     offloaded to capable devices.

  Drivers:

   - veth: more flexible channels number configuration.

   - openvswitch: introduce per-cpu upcall dispatch.

   - Add internet mix (IMIX) mode to pktgen.

   - Transparently handle XDP operations in the bonding driver.

   - Add LiteETH network driver.

   - Renesas (ravb):
       - support Gigabit Ethernet IP

   - NXP Ethernet switch (sja1105):
       - fast aging support
       - support for "H" switch topologies
       - traffic termination for ports under VLAN-aware bridge

   - Intel 1G Ethernet
       - support getcrosststamp() with PCIe PTM (Precision Time
         Measurement) for better time sync
       - support Credit-Based Shaper (CBS) offload, enabling HW traffic
         prioritization and bandwidth reservation

   - Broadcom Ethernet (bnxt)
       - support pulse-per-second output
       - support larger Rx rings

   - Mellanox Ethernet (mlx5)
       - support ethtool RSS contexts and MQPRIO channel mode
       - support LAG offload with bridging
       - support devlink rate limit API
       - support packet sampling on tunnels

   - Huawei Ethernet (hns3):
       - basic devlink support
       - add extended IRQ coalescing support
       - report extended link state

   - Netronome Ethernet (nfp):
       - add conntrack offload support

   - Broadcom WiFi (brcmfmac):
       - add WPA3 Personal with FT to supported cipher suites
       - support 43752 SDIO device

   - Intel WiFi (iwlwifi):
       - support scanning hidden 6GHz networks
       - support for a new hardware family (Bz)

   - Xen pv driver:
       - harden netfront against malicious backends

   - Qualcomm mobile
       - ipa: refactor power management and enable automatic suspend
       - mhi: move MBIM to WWAN subsystem interfaces

  Refactor:

   - Ambient BPF run context and cgroup storage cleanup.

   - Compat rework for ndo_ioctl.

  Old code removal:

   - prism54 remove the obsoleted driver, deprecated by the p54 driver.

   - wan: remove sbni/granch driver"

* tag 'net-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1715 commits)
  net: Add depends on OF_NET for LiteX's LiteETH
  ipv6: seg6: remove duplicated include
  net: hns3: remove unnecessary spaces
  net: hns3: add some required spaces
  net: hns3: clean up a type mismatch warning
  net: hns3: refine function hns3_set_default_feature()
  ipv6: remove duplicated 'net/lwtunnel.h' include
  net: w5100: check return value after calling platform_get_resource()
  net/mlxbf_gige: Make use of devm_platform_ioremap_resourcexxx()
  net: mdio: mscc-miim: Make use of the helper function devm_platform_ioremap_resource()
  net: mdio-ipq4019: Make use of devm_platform_ioremap_resource()
  fou: remove sparse errors
  ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
  octeontx2-af: Set proper errorcode for IPv4 checksum errors
  octeontx2-af: Fix static code analyzer reported issues
  octeontx2-af: Fix mailbox errors in nix_rss_flowkey_cfg
  octeontx2-af: Fix loop in free and unmap counter
  af_unix: fix potential NULL deref in unix_dgram_connect()
  dpaa2-eth: Replace strlcpy with strscpy
  octeontx2-af: Use NDC TX for transmit packet data
  ...

12 files changed, 106 insertions, 18 deletions

diff --git a/tools/bpf/bpftool/Documentation/bpftool-btf.rst b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
index ff4d327a582e..88b28aa7431f 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-btf.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
@@ -12,7 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **btf** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | {**-d** | **--debug** } |
+		{ **-B** | **--base-btf** } }
 
 	*COMMANDS* := { **dump** | **help** }
 
@@ -73,6 +74,20 @@ OPTIONS
 =======
 	.. include:: common_options.rst
 
+	-B, --base-btf *FILE*
+		  Pass a base BTF object. Base BTF objects are typically used
+		  with BTF objects for kernel modules. To avoid duplicating
+		  all kernel symbols required by modules, BTF objects for
+		  modules are "split", they are built incrementally on top of
+		  the kernel (vmlinux) BTF object. So the base BTF reference
+		  should usually point to the kernel BTF.
+
+		  When the main BTF object to process (for example, the
+		  module BTF to dump) is passed as a *FILE*, bpftool attempts
+		  to autodetect the path for the base object, and passing
+		  this option is optional. When the main BTF object is passed
+		  through other handles, this option becomes necessary.
+
 EXAMPLES
 ========
 **# bpftool btf dump id 1226**
@@ -217,3 +232,34 @@ All the standard ways to specify map or program are supported:
 **# bpftool btf dump prog tag b88e0a09b1d9759d**
 
 **# bpftool btf dump prog pinned /sys/fs/bpf/prog_name**
+
+|
+| **# bpftool btf dump file /sys/kernel/btf/i2c_smbus**
+| (or)
+| **# I2C_SMBUS_ID=$(bpftool btf show -p | jq '.[] | select(.name=="i2c_smbus").id')**
+| **# bpftool btf dump id ${I2C_SMBUS_ID} -B /sys/kernel/btf/vmlinux**
+
+::
+
+  [104848] STRUCT 'i2c_smbus_alert' size=40 vlen=2
+          'alert' type_id=393 bits_offset=0
+          'ara' type_id=56050 bits_offset=256
+  [104849] STRUCT 'alert_data' size=12 vlen=3
+          'addr' type_id=16 bits_offset=0
+          'type' type_id=56053 bits_offset=32
+          'data' type_id=7 bits_offset=64
+  [104850] PTR '(anon)' type_id=104848
+  [104851] PTR '(anon)' type_id=104849
+  [104852] FUNC 'i2c_register_spd' type_id=84745 linkage=static
+  [104853] FUNC 'smbalert_driver_init' type_id=1213 linkage=static
+  [104854] FUNC_PROTO '(anon)' ret_type_id=18 vlen=1
+          'ara' type_id=56050
+  [104855] FUNC 'i2c_handle_smbus_alert' type_id=104854 linkage=static
+  [104856] FUNC 'smbalert_remove' type_id=104854 linkage=static
+  [104857] FUNC_PROTO '(anon)' ret_type_id=18 vlen=2
+          'ara' type_id=56050
+          'id' type_id=56056
+  [104858] FUNC 'smbalert_probe' type_id=104857 linkage=static
+  [104859] FUNC 'smbalert_work' type_id=9695 linkage=static
+  [104860] FUNC 'smbus_alert' type_id=71367 linkage=static
+  [104861] FUNC 'smbus_do_alert' type_id=84827 linkage=static
diff --git a/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst b/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
index baee8591ac76..3e4395eede4f 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
@@ -12,7 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **cgroup** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } |
+		{ **-f** | **--bpffs** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **tree** | **attach** | **detach** | **help** }
diff --git a/tools/bpf/bpftool/Documentation/bpftool-feature.rst b/tools/bpf/bpftool/Documentation/bpftool-feature.rst
index dd3771bdbc57..ab9f57ee4c3a 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-feature.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-feature.rst
@@ -12,7 +12,7 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **feature** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
 
 	*COMMANDS* := { **probe** | **help** }
 
diff --git a/tools/bpf/bpftool/Documentation/bpftool-gen.rst b/tools/bpf/bpftool/Documentation/bpftool-gen.rst
index 7cd6681137f3..2ef2f2df0279 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-gen.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-gen.rst
@@ -12,7 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **gen** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } |
+		{ **-L** | **--use-loader** } }
 
 	*COMMAND* := { **object** | **skeleton** | **help** }
 
@@ -152,6 +153,12 @@ OPTIONS
 =======
 	.. include:: common_options.rst
 
+	-L, --use-loader
+		  For skeletons, generate a "light" skeleton (also known as "loader"
+		  skeleton). A light skeleton contains a loader eBPF program. It does
+		  not use the majority of the libbpf infrastructure, and does not need
+		  libelf.
+
 EXAMPLES
 ========
 **$ cat example1.bpf.c**
diff --git a/tools/bpf/bpftool/Documentation/bpftool-iter.rst b/tools/bpf/bpftool/Documentation/bpftool-iter.rst
index 51f49bead619..471f363a725a 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-iter.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-iter.rst
@@ -12,6 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **iter** *COMMAND*
 
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
+
 	*COMMANDS* := { **pin** | **help** }
 
 ITER COMMANDS
diff --git a/tools/bpf/bpftool/Documentation/bpftool-link.rst b/tools/bpf/bpftool/Documentation/bpftool-link.rst
index 5f7db2a837cc..0de90f086238 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-link.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-link.rst
@@ -12,7 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **link** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } |
+		{ **-f** | **--bpffs** } | { **-n** | **--nomount** } }
 
 	*COMMANDS* := { **show** | **list** | **pin** | **help** }
 
diff --git a/tools/bpf/bpftool/Documentation/bpftool-map.rst b/tools/bpf/bpftool/Documentation/bpftool-map.rst
index 3d52256ba75f..d0c4abe08aba 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-map.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-map.rst
@@ -12,7 +12,8 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **map** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } |
+		{ **-f** | **--bpffs** } | { **-n** | **--nomount** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **create** | **dump** | **update** | **lookup** | **getnext**
diff --git a/tools/bpf/bpftool/Documentation/bpftool-net.rst b/tools/bpf/bpftool/Documentation/bpftool-net.rst
index d8165d530937..1ae0375e8fea 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-net.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-net.rst
@@ -12,7 +12,7 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **net** *COMMAND*
 
-	*OPTIONS* := { [{ **-j** | **--json** }] [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **attach** | **detach** | **help** }
diff --git a/tools/bpf/bpftool/Documentation/bpftool-perf.rst b/tools/bpf/bpftool/Documentation/bpftool-perf.rst
index e958ce91de72..ce52798a917d 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-perf.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-perf.rst
@@ -12,7 +12,7 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **perf** *COMMAND*
 
-	*OPTIONS* := { [{ **-j** | **--json** }] [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **help** }
diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
index fe1b38e7e887..91608cb7e44a 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
@@ -12,7 +12,9 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **prog** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } |
+		{ **-f** | **--bpffs** } | { **-m** | **--mapcompat** } | { **-n** | **--nomount** } |
+		{ **-L** | **--use-loader** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **dump xlated** | **dump jited** | **pin** | **load**
@@ -48,10 +50,11 @@ PROG COMMANDS
 |		**struct_ops** | **fentry** | **fexit** | **freplace** | **sk_lookup**
 |	}
 |       *ATTACH_TYPE* := {
-|		**msg_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector**
+|		**msg_verdict** | **skb_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector**
 |	}
 |	*METRICs* := {
-|		**cycles** | **instructions** | **l1d_loads** | **llc_misses**
+|		**cycles** | **instructions** | **l1d_loads** | **llc_misses** |
+|		**itlb_misses** | **dtlb_misses**
 |	}
 
 
@@ -223,6 +226,20 @@ OPTIONS
 		  Do not automatically attempt to mount any virtual file system
 		  (such as tracefs or BPF virtual file system) when necessary.
 
+	-L, --use-loader
+		  Load program as a "loader" program. This is useful to debug
+		  the generation of such programs. When this option is in
+		  use, bpftool attempts to load the programs from the object
+		  file into the kernel, but does not pin them (therefore, the
+		  *PATH* must not be provided).
+
+		  When combined with the **-d**\ \|\ **--debug** option,
+		  additional debug messages are generated, and the execution
+		  of the loader program will use the **bpf_trace_printk**\ ()
+		  helper to log each step of loading BTF, creating the maps,
+		  and loading the programs (see **bpftool prog tracelog** as
+		  a way to dump those messages).
+
 EXAMPLES
 ========
 **# bpftool prog show**
@@ -326,3 +343,16 @@ EXAMPLES
       40176203 cycles                                                 (83.05%)
       42518139 instructions    #   1.06 insns per cycle               (83.39%)
            123 llc_misses      #   2.89 LLC misses per million insns  (83.15%)
+
+|
+| Output below is for the trace logs.
+| Run in separate terminals:
+| **# bpftool prog tracelog**
+| **# bpftool prog load -L -d file.o**
+
+::
+
+    bpftool-620059  [004] d... 2634685.517903: bpf_trace_printk: btf_load size 665 r=5
+    bpftool-620059  [004] d... 2634685.517912: bpf_trace_printk: map_create sample_map idx 0 type 2 value_size 4 value_btf_id 0 r=6
+    bpftool-620059  [004] d... 2634685.517997: bpf_trace_printk: prog_load sample insn_cnt 13 r=7
+    bpftool-620059  [004] d... 2634685.517999: bpf_trace_printk: close(5) = 0
diff --git a/tools/bpf/bpftool/Documentation/bpftool-struct_ops.rst b/tools/bpf/bpftool/Documentation/bpftool-struct_ops.rst
index 506e70ee78e9..02afc0fc14cb 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-struct_ops.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-struct_ops.rst
@@ -12,7 +12,7 @@ SYNOPSIS
 
 	**bpftool** [*OPTIONS*] **struct_ops** *COMMAND*
 
-	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
 
 	*COMMANDS* :=
 	{ **show** | **list** | **dump** | **register** | **unregister** | **help** }
diff --git a/tools/bpf/bpftool/Documentation/bpftool.rst b/tools/bpf/bpftool/Documentation/bpftool.rst
index e7d949334961..bb23f55bb05a 100644
--- a/tools/bpf/bpftool/Documentation/bpftool.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool.rst
@@ -18,15 +18,15 @@ SYNOPSIS
 
 	*OBJECT* := { **map** | **program** | **cgroup** | **perf** | **net** | **feature** }
 
-	*OPTIONS* := { { **-V** | **--version** } | { **-h** | **--help** }
-	| { **-j** | **--json** } [{ **-p** | **--pretty** }] }
+	*OPTIONS* := { { **-V** | **--version** } |
+		{ **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } }
 
 	*MAP-COMMANDS* :=
-	{ **show** | **list** | **create** | **dump** | **update** | **lookup** | **getnext**
-	| **delete** | **pin** | **event_pipe** | **help** }
+	{ **show** | **list** | **create** | **dump** | **update** | **lookup** | **getnext** |
+		**delete** | **pin** | **event_pipe** | **help** }
 
-	*PROG-COMMANDS* := { **show** | **list** | **dump jited** | **dump xlated** | **pin**
-	| **load** | **attach** | **detach** | **help** }
+	*PROG-COMMANDS* := { **show** | **list** | **dump jited** | **dump xlated** | **pin** |
+		**load** | **attach** | **detach** | **help** }
 
 	*CGROUP-COMMANDS* := { **show** | **list** | **attach** | **detach** | **help** }