Merge tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Don't destroy user event fields when removal fails

   User event fields are destroyed before the event is removed from
   visibility. But that can fail leaving the still visible event with no
   fields. Move the destroying of the fields to after the event is
   successfully removed from visibility.

 - Initialize function graph state is fork before calling
   copy_exec_state()

   For non-CLONE_VM forks, copy_exec_state() allocates a new
   task_exec_state. If that allocation fails, ftrace_graph_exit_task()
   will free the tasks ret_stack pointer. Since that pointer is still
   using the parent's ret_stack, it mistakenly frees the parent's
   pointer too.

   Call ftrace_graph_init() on the task first which will NULL out the
   new tasks's ret_stack and if the copy fails, it will not free
   anything.

 - Remove FGRAPH_MAX_INDEX

   The macro FGRAPH_MAX_INDEX was added but never used. Remove it.

 - Save ent_size in function graph printing of nested functions

   The function graph tracer needs to look at the next event to see if
   the next event is the return of the current function entry. If it is,
   it prints a single line:

	ktime_get();

   Otherwise it prints it like a nested function:

	tick_nohz_irq_exit() {
	    ktime_get();
	    kcpustat_irq_exit();
	}

   In order to look at the next event, it must save the current event so
   that it has the information to print from it. It saves the event in
   the iterator descriptor called "ent". What it doesn't save is the
   ent_size of the event which is now used to know if the function graph
   arguments are to be printed. The peek doesn't save the size so the
   size used happens to be that of the size of the last event that was
   seen.

   Save the entry event size in the iterator descriptor so that the
   correct size is used.

 - Fix several errors with freeing data in the histogram code

   The histogram code had a lot of leaked or or incorrect accounting
   when failures happen. Correct them.

 - Fix histogram regression of .percent and .graph modifiers

   Up until 6.3 histogram values could have "percent" or "graph"
   modifiers that changed how they were printed. But a change that added
   restricting histograms values from being strings, stack traces and
   other modifiers inadvertently prevented them from using the percent
   and graph modifiers, which were legal use cases for values.

   Put back the percent and graph modifiers.

 - Fix various typos in the comments

 - Set the trace_clock before initializing a histogram with clock
   argument

   The histogram API allows the user to specific which trace clock to
   use via a "clock=" string. The histogram is set up first before the
   clock is checked. If the passed in clock is not valid, it exits
   without fully fixing up the histogram leaving it on the list and a
   use-after-free can trigger.

   Update the clock argument first and if it fails then exit gracefully
   before the histogram trigger is placed on any lists.

 - Restore :mod: trailer after parsing in ftrace_set_clr_event

   The function ftrace_set_clr_event() modifies the parse string and
   needs to put it back to what was passed in. It searches for ":mod:"
   via a strsep() but fails to put back the first ':' in the string.

   Add back the ':' in the passed in string.

 - Take trace_array reference when opening a tracer options file

   The options files are dynamically created and some tracers add their
   own options. When a tracer adds their own list of options, the
   trace_array holding them has an array to hold the list of options for
   each tracer. This array increases in size via a krealloc(), and the
   new entry gets a newly allocated array to hold the options of the new
   tracer being added.

   The element in each entry of the tracer's option array holds a
   pointer back to the trace_array, a pointer to the tracer it is
   associated to, a pointer to the flags of the option.

   The issue is that these arrays are freed when the trace_array is
   freed when its instance it represents is removed from the instances
   directory. There's a race that an open of one of these options files
   can happen when the instance is being removed.

   Add a new helper function to be called by the open function of the
   options file to iterate all existing trace_arrays under a lock and
   find the one that has the given option element in one of it's tracer
   arrays. If found, then update the associated trace_array's reference
   counter to keep it from being freed. If not found, have the open call
   return -ENODEV.

 - Disable interrupts when acquiring the lock in rb_wake_up_waiters()

   The function rb_wake_up_waiters() assumes it will be called in
   interrupt context and does not disable irqs when taking
   cpu_buffer->reader_lock, which can be called in hard interrupt
   context. The issue is in PREEMPT_RT, this function is called in
   thread context leaving this lock open to a deadlock.

   Take the lock with interrupts disabled.

 - Use rcu_assign_pointer() for tmp_ops filter hash

   The tmp_ops used in update_ftrace_direct_mod() assigns its
   filter_hash field directly, but that field is annotated as __rcu and
   sparse complains. Assign it with rcu_assign_pointer()

 - Fix use-after-free in enable_trigger_private_data_free()

   The trace_event_call is accessed through the event_trigger_data's
   trace_event_file pointer to put the trace_event_call on freeing. The
   issue is that the trace_event_file data may have been freed already
   causing a use-after-free. Add a field to the event_trigger_data that
   points directly to the trace_event_call so that it can decrement its
   reference directly without needing to go through the
   trace_event_file.

 - Fix accounting of buffer data remote headers

   trace_buffer_desc_size() and trace_remote_alloc_buffer() undercount
   the number of pages is needed for the asked for size as it doesn't
   take into account the meta data on each page. Add a helper function
   to do the calculation properly and use that in these functions.

 - Catch nr_page_va overflow in ring_buffer_desc sizing

   The number of pages per remote ring buffer is capped by
   ring_buffer_desc::nr_page_va (32 bits). A buffer_size large enough to
   overflow that field would silently allocate a descriptor smaller than
   what was asked for.

 - Do not resize the subbuf order if any per_cpu buffer is disabled

   The mmapping of ring buffers disables resizing the subbuffers, but it
   is done per-cpu whereas the subbuf size change is done for all the
   per_cpu buffers under the buffer->mutex. It could change the size of
   some while the mapping is happening on others. Have the resize of the
   subbuf order check all the per_cpu buffers under the lock to see if
   any of them is disabled before starting and causing an inconsistency
   between buffers that are being mapped.

* tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (25 commits)
  ring-buffer: Check resize_disabled before publishing the new subbuf order
  tracing/remotes: Catch nr_page_va overflow in ring_buffer_desc sizing
  tracing/remotes: Account for ring buffer page header in size calculation
  tracing: Don't dereference trace_event_file in deferred trigger free
  ftrace: Use rcu_assign_pointer() for tmp_ops filter hash
  ring-buffer: Acquire the lock with irqsave in rb_wake_up_waiters()
  tracing: Take trace_array reference when opening a tracer options file
  tracing: Fix ring_buffer_read_page_size() kernel-doc
  tracing: Restore :mod: trailer after parsing in ftrace_set_clr_event()
  tracing: Fix memory corruption from a "STACKTRACE" histogram key
  tracing: Fix memory corruption from the histogram stacktrace modifier
  tracing: Undo the registration when enabling the histogram trigger fails
  tracing: Take the reference before publishing the named histogram trigger
  tracing: Set the trace clock before registering the histogram trigger
  tracing: Fix typo "preceeded" in comment
  tracing: Fix typo "availabe" in comment
  tracing: Let histogram values keep the percent and graph modifiers
  tracing: Keep the entry count when the histogram stats allocation fails
  tracing: Free histogram the field rejected for a bad modifier
  tracing: Free histogram the var ref when its initialization fails
  ...

1 files changed, 1402 insertions, 0 deletions

diff --git a/net/ethtool/common.c b/net/ethtool/common.c
new file mode 100644
index 000000000..23db40618
--- /dev/null
+++ b/net/ethtool/common.c
@@ -0,0 +1,1402 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/ethtool_netlink.h>
+#include <linux/net_tstamp.h>
+#include <linux/phy.h>
+#include <linux/rtnetlink.h>
+#include <linux/ptp_clock_kernel.h>
+#include <linux/phy_link_topology.h>
+#include <net/netdev_queues.h>
+
+#include "common.h"
+#include "netlink.h"
+#include "../core/dev.h"
+
+
+const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
+	[NETIF_F_SG_BIT] =               "tx-scatter-gather",
+	[NETIF_F_IP_CSUM_BIT] =          "tx-checksum-ipv4",
+	[NETIF_F_HW_CSUM_BIT] =          "tx-checksum-ip-generic",
+	[NETIF_F_IPV6_CSUM_BIT] =        "tx-checksum-ipv6",
+	[NETIF_F_HIGHDMA_BIT] =          "highdma",
+	[NETIF_F_FRAGLIST_BIT] =         "tx-scatter-gather-fraglist",
+	[NETIF_F_HW_VLAN_CTAG_TX_BIT] =  "tx-vlan-hw-insert",
+
+	[NETIF_F_HW_VLAN_CTAG_RX_BIT] =  "rx-vlan-hw-parse",
+	[NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
+	[NETIF_F_HW_VLAN_STAG_TX_BIT] =  "tx-vlan-stag-hw-insert",
+	[NETIF_F_HW_VLAN_STAG_RX_BIT] =  "rx-vlan-stag-hw-parse",
+	[NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
+	[NETIF_F_VLAN_CHALLENGED_BIT] =  "vlan-challenged",
+	[NETIF_F_GSO_BIT] =              "tx-generic-segmentation",
+	[NETIF_F_GRO_BIT] =              "rx-gro",
+	[NETIF_F_GRO_HW_BIT] =           "rx-gro-hw",
+	[NETIF_F_LRO_BIT] =              "rx-lro",
+
+	[NETIF_F_TSO_BIT] =              "tx-tcp-segmentation",
+	[NETIF_F_GSO_ROBUST_BIT] =       "tx-gso-robust",
+	[NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
+	[NETIF_F_GSO_ACCECN_BIT] =	 "tx-tcp-accecn-segmentation",
+	[NETIF_F_TSO_MANGLEID_BIT] =	 "tx-tcp-mangleid-segmentation",
+	[NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
+	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
+	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
+	[NETIF_F_GSO_GRE_CSUM_BIT] =	 "tx-gre-csum-segmentation",
+	[NETIF_F_GSO_IPXIP4_BIT] =	 "tx-ipxip4-segmentation",
+	[NETIF_F_GSO_IPXIP6_BIT] =	 "tx-ipxip6-segmentation",
+	[NETIF_F_GSO_UDP_TUNNEL_BIT] =	 "tx-udp_tnl-segmentation",
+	[NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
+	[NETIF_F_GSO_PARTIAL_BIT] =	 "tx-gso-partial",
+	[NETIF_F_GSO_TUNNEL_REMCSUM_BIT] = "tx-tunnel-remcsum-segmentation",
+	[NETIF_F_GSO_SCTP_BIT] =	 "tx-sctp-segmentation",
+	[NETIF_F_GSO_ESP_BIT] =		 "tx-esp-segmentation",
+	[NETIF_F_GSO_UDP_L4_BIT] =	 "tx-udp-segmentation",
+	[NETIF_F_GSO_FRAGLIST_BIT] =	 "tx-gso-list",
+
+	[NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
+	[NETIF_F_SCTP_CRC_BIT] =        "tx-checksum-sctp",
+	[NETIF_F_NTUPLE_BIT] =           "rx-ntuple-filter",
+	[NETIF_F_RXHASH_BIT] =           "rx-hashing",
+	[NETIF_F_RXCSUM_BIT] =           "rx-checksum",
+	[NETIF_F_NOCACHE_COPY_BIT] =     "tx-nocache-copy",
+	[NETIF_F_LOOPBACK_BIT] =         "loopback",
+	[NETIF_F_RXFCS_BIT] =            "rx-fcs",
+	[NETIF_F_RXALL_BIT] =            "rx-all",
+	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
+	[NETIF_F_HW_TC_BIT] =		 "hw-tc-offload",
+	[NETIF_F_HW_ESP_BIT] =		 "esp-hw-offload",
+	[NETIF_F_HW_ESP_TX_CSUM_BIT] =	 "esp-tx-csum-hw-offload",
+	[NETIF_F_RX_UDP_TUNNEL_PORT_BIT] =	 "rx-udp_tunnel-port-offload",
+	[NETIF_F_HW_TLS_TX_BIT] =	 "tls-hw-tx-offload",
+	[NETIF_F_HW_TLS_RX_BIT] =	 "tls-hw-rx-offload",
+	[NETIF_F_GRO_FRAGLIST_BIT] =	 "rx-gro-list",
+	[NETIF_F_HW_MACSEC_BIT] =	 "macsec-hw-offload",
+	[NETIF_F_GRO_UDP_FWD_BIT] =	 "rx-udp-gro-forwarding",
+	[NETIF_F_HW_HSR_TAG_INS_BIT] =	 "hsr-tag-ins-offload",
+	[NETIF_F_HW_HSR_TAG_RM_BIT] =	 "hsr-tag-rm-offload",
+	[NETIF_F_HW_HSR_FWD_BIT] =	 "hsr-fwd-offload",
+	[NETIF_F_HW_HSR_DUP_BIT] =	 "hsr-dup-offload",
+};
+
+const char
+rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
+	[ETH_RSS_HASH_TOP_BIT] =	"toeplitz",
+	[ETH_RSS_HASH_XOR_BIT] =	"xor",
+	[ETH_RSS_HASH_CRC32_BIT] =	"crc32",
+};
+
+const char
+tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
+	[ETHTOOL_ID_UNSPEC]     = "Unspec",
+	[ETHTOOL_RX_COPYBREAK]	= "rx-copybreak",
+	[ETHTOOL_TX_COPYBREAK]	= "tx-copybreak",
+	[ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",
+	[ETHTOOL_TX_COPYBREAK_BUF_SIZE] = "tx-copybreak-buf-size",
+};
+
+const char
+phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
+	[ETHTOOL_ID_UNSPEC]     = "Unspec",
+	[ETHTOOL_PHY_DOWNSHIFT]	= "phy-downshift",
+	[ETHTOOL_PHY_FAST_LINK_DOWN] = "phy-fast-link-down",
+	[ETHTOOL_PHY_EDPD]	= "phy-energy-detect-power-down",
+	[ETHTOOL_PHY_SHORT_CABLE_PRESET] = "phy-short-cable-preset",
+	[ETHTOOL_PHY_LPF_BW]	= "phy-lpf-bandwidth",
+	[ETHTOOL_PHY_DSP_EQ_INIT_VALUE] = "phy-dsp-eq-init-value",
+};
+
+#define __LINK_MODE_NAME(speed, type, duplex) \
+	#speed "base" #type "/" #duplex
+#define __DEFINE_LINK_MODE_NAME(speed, type, duplex) \
+	[ETHTOOL_LINK_MODE(speed, type, duplex)] = \
+	__LINK_MODE_NAME(speed, type, duplex)
+#define __DEFINE_SPECIAL_MODE_NAME(_mode, _name) \
+	[ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = _name
+
+const char link_mode_names[][ETH_GSTRING_LEN] = {
+	__DEFINE_LINK_MODE_NAME(10, T, Half),
+	__DEFINE_LINK_MODE_NAME(10, T, Full),
+	__DEFINE_LINK_MODE_NAME(100, T, Half),
+	__DEFINE_LINK_MODE_NAME(100, T, Full),
+	__DEFINE_LINK_MODE_NAME(1000, T, Half),
+	__DEFINE_LINK_MODE_NAME(1000, T, Full),
+	__DEFINE_SPECIAL_MODE_NAME(Autoneg, "Autoneg"),
+	__DEFINE_SPECIAL_MODE_NAME(TP, "TP"),
+	__DEFINE_SPECIAL_MODE_NAME(AUI, "AUI"),
+	__DEFINE_SPECIAL_MODE_NAME(MII, "MII"),
+	__DEFINE_SPECIAL_MODE_NAME(FIBRE, "FIBRE"),
+	__DEFINE_SPECIAL_MODE_NAME(BNC, "BNC"),
+	__DEFINE_LINK_MODE_NAME(10000, T, Full),
+	__DEFINE_SPECIAL_MODE_NAME(Pause, "Pause"),
+	__DEFINE_SPECIAL_MODE_NAME(Asym_Pause, "Asym_Pause"),
+	__DEFINE_LINK_MODE_NAME(2500, X, Full),
+	__DEFINE_SPECIAL_MODE_NAME(Backplane, "Backplane"),
+	__DEFINE_LINK_MODE_NAME(1000, KX, Full),
+	__DEFINE_LINK_MODE_NAME(10000, KX4, Full),
+	__DEFINE_LINK_MODE_NAME(10000, KR, Full),
+	__DEFINE_SPECIAL_MODE_NAME(10000baseR_FEC, "10000baseR_FEC"),
+	__DEFINE_LINK_MODE_NAME(20000, MLD2, Full),
+	__DEFINE_LINK_MODE_NAME(20000, KR2, Full),
+	__DEFINE_LINK_MODE_NAME(40000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(40000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(40000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(40000, LR4, Full),
+	__DEFINE_LINK_MODE_NAME(56000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(56000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(56000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(56000, LR4, Full),
+	__DEFINE_LINK_MODE_NAME(25000, CR, Full),
+	__DEFINE_LINK_MODE_NAME(25000, KR, Full),
+	__DEFINE_LINK_MODE_NAME(25000, SR, Full),
+	__DEFINE_LINK_MODE_NAME(50000, CR2, Full),
+	__DEFINE_LINK_MODE_NAME(50000, KR2, Full),
+	__DEFINE_LINK_MODE_NAME(100000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(100000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(100000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(100000, LR4_ER4, Full),
+	__DEFINE_LINK_MODE_NAME(50000, SR2, Full),
+	__DEFINE_LINK_MODE_NAME(1000, X, Full),
+	__DEFINE_LINK_MODE_NAME(10000, CR, Full),
+	__DEFINE_LINK_MODE_NAME(10000, SR, Full),
+	__DEFINE_LINK_MODE_NAME(10000, LR, Full),
+	__DEFINE_LINK_MODE_NAME(10000, LRM, Full),
+	__DEFINE_LINK_MODE_NAME(10000, ER, Full),
+	__DEFINE_LINK_MODE_NAME(2500, T, Full),
+	__DEFINE_LINK_MODE_NAME(5000, T, Full),
+	__DEFINE_SPECIAL_MODE_NAME(FEC_NONE, "None"),
+	__DEFINE_SPECIAL_MODE_NAME(FEC_RS, "RS"),
+	__DEFINE_SPECIAL_MODE_NAME(FEC_BASER, "BASER"),
+	__DEFINE_LINK_MODE_NAME(50000, KR, Full),
+	__DEFINE_LINK_MODE_NAME(50000, SR, Full),
+	__DEFINE_LINK_MODE_NAME(50000, CR, Full),
+	__DEFINE_LINK_MODE_NAME(50000, LR_ER_FR, Full),
+	__DEFINE_LINK_MODE_NAME(50000, DR, Full),
+	__DEFINE_LINK_MODE_NAME(100000, KR2, Full),
+	__DEFINE_LINK_MODE_NAME(100000, SR2, Full),
+	__DEFINE_LINK_MODE_NAME(100000, CR2, Full),
+	__DEFINE_LINK_MODE_NAME(100000, LR2_ER2_FR2, Full),
+	__DEFINE_LINK_MODE_NAME(100000, DR2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(200000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(200000, LR4_ER4_FR4, Full),
+	__DEFINE_LINK_MODE_NAME(200000, DR4, Full),
+	__DEFINE_LINK_MODE_NAME(200000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(100, T1, Full),
+	__DEFINE_LINK_MODE_NAME(1000, T1, Full),
+	__DEFINE_LINK_MODE_NAME(400000, KR8, Full),
+	__DEFINE_LINK_MODE_NAME(400000, SR8, Full),
+	__DEFINE_LINK_MODE_NAME(400000, LR8_ER8_FR8, Full),
+	__DEFINE_LINK_MODE_NAME(400000, DR8, Full),
+	__DEFINE_LINK_MODE_NAME(400000, CR8, Full),
+	__DEFINE_SPECIAL_MODE_NAME(FEC_LLRS, "LLRS"),
+	__DEFINE_LINK_MODE_NAME(100000, KR, Full),
+	__DEFINE_LINK_MODE_NAME(100000, SR, Full),
+	__DEFINE_LINK_MODE_NAME(100000, LR_ER_FR, Full),
+	__DEFINE_LINK_MODE_NAME(100000, DR, Full),
+	__DEFINE_LINK_MODE_NAME(100000, CR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, KR2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, SR2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, LR2_ER2_FR2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, DR2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, CR2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(400000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(400000, LR4_ER4_FR4, Full),
+	__DEFINE_LINK_MODE_NAME(400000, DR4, Full),
+	__DEFINE_LINK_MODE_NAME(400000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(100, FX, Half),
+	__DEFINE_LINK_MODE_NAME(100, FX, Full),
+	__DEFINE_LINK_MODE_NAME(10, T1L, Full),
+	__DEFINE_LINK_MODE_NAME(800000, CR8, Full),
+	__DEFINE_LINK_MODE_NAME(800000, KR8, Full),
+	__DEFINE_LINK_MODE_NAME(800000, DR8, Full),
+	__DEFINE_LINK_MODE_NAME(800000, DR8_2, Full),
+	__DEFINE_LINK_MODE_NAME(800000, SR8, Full),
+	__DEFINE_LINK_MODE_NAME(800000, VR8, Full),
+	__DEFINE_LINK_MODE_NAME(10, T1S, Full),
+	__DEFINE_LINK_MODE_NAME(10, T1S, Half),
+	__DEFINE_LINK_MODE_NAME(10, T1S_P2MP, Half),
+	__DEFINE_LINK_MODE_NAME(10, T1BRR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, CR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, KR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, DR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, DR_2, Full),
+	__DEFINE_LINK_MODE_NAME(200000, SR, Full),
+	__DEFINE_LINK_MODE_NAME(200000, VR, Full),
+	__DEFINE_LINK_MODE_NAME(400000, CR2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, KR2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, DR2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, DR2_2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, SR2, Full),
+	__DEFINE_LINK_MODE_NAME(400000, VR2, Full),
+	__DEFINE_LINK_MODE_NAME(800000, CR4, Full),
+	__DEFINE_LINK_MODE_NAME(800000, KR4, Full),
+	__DEFINE_LINK_MODE_NAME(800000, DR4, Full),
+	__DEFINE_LINK_MODE_NAME(800000, DR4_2, Full),
+	__DEFINE_LINK_MODE_NAME(800000, SR4, Full),
+	__DEFINE_LINK_MODE_NAME(800000, VR4, Full),
+	__DEFINE_LINK_MODE_NAME(1600000, CR8, Full),
+	__DEFINE_LINK_MODE_NAME(1600000, KR8, Full),
+	__DEFINE_LINK_MODE_NAME(1600000, DR8, Full),
+	__DEFINE_LINK_MODE_NAME(1600000, DR8_2, Full),
+};
+static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
+
+#define __LINK_MODE_LANES_CR		1
+#define __LINK_MODE_LANES_CR2		2
+#define __LINK_MODE_LANES_CR4		4
+#define __LINK_MODE_LANES_CR8		8
+#define __LINK_MODE_LANES_DR		1
+#define __LINK_MODE_LANES_DR_2		1
+#define __LINK_MODE_LANES_DR2		2
+#define __LINK_MODE_LANES_DR2_2		2
+#define __LINK_MODE_LANES_DR4		4
+#define __LINK_MODE_LANES_DR4_2		4
+#define __LINK_MODE_LANES_DR8		8
+#define __LINK_MODE_LANES_KR		1
+#define __LINK_MODE_LANES_KR2		2
+#define __LINK_MODE_LANES_KR4		4
+#define __LINK_MODE_LANES_KR8		8
+#define __LINK_MODE_LANES_SR		1
+#define __LINK_MODE_LANES_SR2		2
+#define __LINK_MODE_LANES_SR4		4
+#define __LINK_MODE_LANES_SR8		8
+#define __LINK_MODE_LANES_ER		1
+#define __LINK_MODE_LANES_KX		1
+#define __LINK_MODE_LANES_KX4		4
+#define __LINK_MODE_LANES_LR		1
+#define __LINK_MODE_LANES_LR4		4
+#define __LINK_MODE_LANES_LR4_ER4	4
+#define __LINK_MODE_LANES_LR_ER_FR	1
+#define __LINK_MODE_LANES_LR2_ER2_FR2	2
+#define __LINK_MODE_LANES_LR4_ER4_FR4	4
+#define __LINK_MODE_LANES_LR8_ER8_FR8	8
+#define __LINK_MODE_LANES_LRM		1
+#define __LINK_MODE_LANES_MLD2		2
+#define __LINK_MODE_LANES_T		1
+#define __LINK_MODE_LANES_T1		1
+#define __LINK_MODE_LANES_X		1
+#define __LINK_MODE_LANES_FX		1
+#define __LINK_MODE_LANES_T1L		1
+#define __LINK_MODE_LANES_T1S		1
+#define __LINK_MODE_LANES_T1S_P2MP	1
+#define __LINK_MODE_LANES_VR		1
+#define __LINK_MODE_LANES_VR2		2
+#define __LINK_MODE_LANES_VR4		4
+#define __LINK_MODE_LANES_VR8		8
+#define __LINK_MODE_LANES_DR8_2		8
+#define __LINK_MODE_LANES_T1BRR		1
+
+#define __DEFINE_LINK_MODE_PARAMS_PAIRS(_speed, _type, _min_pairs, _pairs, _duplex, _medium) \
+	[ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = {		\
+		.speed  = SPEED_ ## _speed, \
+		.lanes  = __LINK_MODE_LANES_ ## _type, \
+		.min_pairs = _min_pairs, \
+		.pairs = _pairs, \
+		.duplex	= __DUPLEX_ ## _duplex, \
+		.mediums = BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium) \
+	}
+
+#define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _duplex, _medium)	\
+	[ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = {		\
+		.speed  = SPEED_ ## _speed, \
+		.lanes  = __LINK_MODE_LANES_ ## _type, \
+		.min_pairs = 0, \
+		.pairs = 0, \
+		.duplex	= __DUPLEX_ ## _duplex, \
+		.mediums = BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium) \
+	}
+#define __DEFINE_LINK_MODE_PARAMS_MEDIUMS(_speed, _type, _duplex, _mediums)	\
+	[ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = {		\
+		.speed  = SPEED_ ## _speed, \
+		.lanes  = __LINK_MODE_LANES_ ## _type, \
+		.min_pairs = 0, \
+		.pairs = 0, \
+		.duplex	= __DUPLEX_ ## _duplex, \
+		.mediums = (_mediums) \
+	}
+#define __MED(_medium)	(BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium))
+#define __DUPLEX_Half DUPLEX_HALF
+#define __DUPLEX_Full DUPLEX_FULL
+#define __DEFINE_SPECIAL_MODE_PARAMS(_mode) \
+	[ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = { \
+		.speed	= SPEED_UNKNOWN, \
+		.lanes	= 0, \
+		.duplex	= DUPLEX_UNKNOWN, \
+		.mediums = BIT(ETHTOOL_LINK_MEDIUM_NONE), \
+	}
+
+const struct link_mode_info link_mode_params[] = {
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T, 2, 4, Half, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T, 2, 4, Full, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(100, T, 2, 4, Half, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(100, T, 2, 4, Full, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T, 4, 4, Half, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T, 4, 4, Full, T),
+	__DEFINE_SPECIAL_MODE_PARAMS(Autoneg),
+	__DEFINE_SPECIAL_MODE_PARAMS(TP),
+	__DEFINE_SPECIAL_MODE_PARAMS(AUI),
+	__DEFINE_SPECIAL_MODE_PARAMS(MII),
+	__DEFINE_SPECIAL_MODE_PARAMS(FIBRE),
+	__DEFINE_SPECIAL_MODE_PARAMS(BNC),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10000, T, 4, 4, Full, T),
+	__DEFINE_SPECIAL_MODE_PARAMS(Pause),
+	__DEFINE_SPECIAL_MODE_PARAMS(Asym_Pause),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(2500, X, Full,
+					  __MED(C) | __MED(S) | __MED(L)),
+	__DEFINE_SPECIAL_MODE_PARAMS(Backplane),
+	__DEFINE_LINK_MODE_PARAMS(1000, KX, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(10000, KX4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(10000, KR, Full, K),
+	[ETHTOOL_LINK_MODE_10000baseR_FEC_BIT] = {
+		.speed	= SPEED_10000,
+		.lanes	= 1,
+		.duplex = DUPLEX_FULL,
+	},
+	__DEFINE_LINK_MODE_PARAMS(20000, MLD2, Full, MLD),
+	__DEFINE_LINK_MODE_PARAMS(20000, KR2, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(40000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(40000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(40000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(40000, LR4, Full, L),
+	__DEFINE_LINK_MODE_PARAMS(56000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(56000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(56000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(56000, LR4, Full, L),
+	__DEFINE_LINK_MODE_PARAMS(25000, CR, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(25000, KR, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(25000, SR, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(50000, CR2, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(50000, KR2, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(100000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(100000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(100000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR4_ER4, Full,
+					  __MED(L) | __MED(E)),
+	__DEFINE_LINK_MODE_PARAMS(50000, SR2, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(1000, X, Full,
+					  __MED(C) | __MED(S) | __MED(L)),
+	__DEFINE_LINK_MODE_PARAMS(10000, CR, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(10000, SR, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(10000, LR, Full, L),
+	__DEFINE_LINK_MODE_PARAMS(10000, LRM, Full, L),
+	__DEFINE_LINK_MODE_PARAMS(10000, ER, Full, E),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(2500, T, 4, 4, Full, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(5000, T, 4, 4, Full, T),
+	__DEFINE_SPECIAL_MODE_PARAMS(FEC_NONE),
+	__DEFINE_SPECIAL_MODE_PARAMS(FEC_RS),
+	__DEFINE_SPECIAL_MODE_PARAMS(FEC_BASER),
+	__DEFINE_LINK_MODE_PARAMS(50000, KR, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(50000, SR, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(50000, CR, Full, C),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(50000, LR_ER_FR, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(50000, DR, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(100000, KR2, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(100000, SR2, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(100000, CR2, Full, C),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR2_ER2_FR2, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(100000, DR2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(200000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(200000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(200000, LR4_ER4_FR4, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(200000, DR4, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(200000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(100, T1, 1, 1, Full, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T1, 1, 1, Full, T),
+	__DEFINE_LINK_MODE_PARAMS(400000, KR8, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(400000, SR8, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(400000, LR8_ER8_FR8, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(400000, DR8, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(400000, CR8, Full, C),
+	__DEFINE_SPECIAL_MODE_PARAMS(FEC_LLRS),
+	__DEFINE_LINK_MODE_PARAMS(100000, KR, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(100000, SR, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR_ER_FR, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(100000, DR, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(100000, CR, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(200000, KR2, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(200000, SR2, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(200000, LR2_ER2_FR2, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(200000, DR2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(200000, CR2, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(400000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(400000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS_MEDIUMS(400000, LR4_ER4_FR4, Full,
+					  __MED(L) | __MED(E) | __MED(F)),
+	__DEFINE_LINK_MODE_PARAMS(400000, DR4, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(400000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(100, FX, Half, F),
+	__DEFINE_LINK_MODE_PARAMS(100, FX, Full, F),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1L, 1, 1, Full, T),
+	__DEFINE_LINK_MODE_PARAMS(800000, CR8, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(800000, KR8, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(800000, DR8, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(800000, DR8_2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(800000, SR8, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(800000, VR8, Full, V),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S, 1, 1, Full, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S, 1, 1, Half, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S_P2MP, 1, 1, Half, T),
+	__DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1BRR, 1, 1, Full, T),
+	__DEFINE_LINK_MODE_PARAMS(200000, CR, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(200000, KR, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(200000, DR, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(200000, DR_2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(200000, SR, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(200000, VR, Full, V),
+	__DEFINE_LINK_MODE_PARAMS(400000, CR2, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(400000, KR2, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(400000, DR2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(400000, DR2_2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(400000, SR2, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(400000, VR2, Full, V),
+	__DEFINE_LINK_MODE_PARAMS(800000, CR4, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(800000, KR4, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(800000, DR4, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(800000, DR4_2, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(800000, SR4, Full, S),
+	__DEFINE_LINK_MODE_PARAMS(800000, VR4, Full, V),
+	__DEFINE_LINK_MODE_PARAMS(1600000, CR8, Full, C),
+	__DEFINE_LINK_MODE_PARAMS(1600000, KR8, Full, K),
+	__DEFINE_LINK_MODE_PARAMS(1600000, DR8, Full, D),
+	__DEFINE_LINK_MODE_PARAMS(1600000, DR8_2, Full, D),
+};
+static_assert(ARRAY_SIZE(link_mode_params) == __ETHTOOL_LINK_MODE_MASK_NBITS);
+EXPORT_SYMBOL_GPL(link_mode_params);
+
+static const char ethtool_link_medium_names[][ETH_GSTRING_LEN] = {
+	[ETHTOOL_LINK_MEDIUM_BASET] = "BaseT",
+	[ETHTOOL_LINK_MEDIUM_BASEK] = "BaseK",
+	[ETHTOOL_LINK_MEDIUM_BASES] = "BaseS",
+	[ETHTOOL_LINK_MEDIUM_BASEC] = "BaseC",
+	[ETHTOOL_LINK_MEDIUM_BASEL] = "BaseL",
+	[ETHTOOL_LINK_MEDIUM_BASED] = "BaseD",
+	[ETHTOOL_LINK_MEDIUM_BASEE] = "BaseE",
+	[ETHTOOL_LINK_MEDIUM_BASEF] = "BaseF",
+	[ETHTOOL_LINK_MEDIUM_BASEV] = "BaseV",
+	[ETHTOOL_LINK_MEDIUM_BASEMLD] = "BaseMLD",
+	[ETHTOOL_LINK_MEDIUM_NONE] = "None",
+};
+static_assert(ARRAY_SIZE(ethtool_link_medium_names) == __ETHTOOL_LINK_MEDIUM_LAST);
+
+const char netif_msg_class_names[][ETH_GSTRING_LEN] = {
+	[NETIF_MSG_DRV_BIT]		= "drv",
+	[NETIF_MSG_PROBE_BIT]		= "probe",
+	[NETIF_MSG_LINK_BIT]		= "link",
+	[NETIF_MSG_TIMER_BIT]		= "timer",
+	[NETIF_MSG_IFDOWN_BIT]		= "ifdown",
+	[NETIF_MSG_IFUP_BIT]		= "ifup",
+	[NETIF_MSG_RX_ERR_BIT]		= "rx_err",
+	[NETIF_MSG_TX_ERR_BIT]		= "tx_err",
+	[NETIF_MSG_TX_QUEUED_BIT]	= "tx_queued",
+	[NETIF_MSG_INTR_BIT]		= "intr",
+	[NETIF_MSG_TX_DONE_BIT]		= "tx_done",
+	[NETIF_MSG_RX_STATUS_BIT]	= "rx_status",
+	[NETIF_MSG_PKTDATA_BIT]		= "pktdata",
+	[NETIF_MSG_HW_BIT]		= "hw",
+	[NETIF_MSG_WOL_BIT]		= "wol",
+};
+static_assert(ARRAY_SIZE(netif_msg_class_names) == NETIF_MSG_CLASS_COUNT);
+
+const char wol_mode_names[][ETH_GSTRING_LEN] = {
+	[const_ilog2(WAKE_PHY)]		= "phy",
+	[const_ilog2(WAKE_UCAST)]	= "ucast",
+	[const_ilog2(WAKE_MCAST)]	= "mcast",
+	[const_ilog2(WAKE_BCAST)]	= "bcast",
+	[const_ilog2(WAKE_ARP)]		= "arp",
+	[const_ilog2(WAKE_MAGIC)]	= "magic",
+	[const_ilog2(WAKE_MAGICSECURE)]	= "magicsecure",
+	[const_ilog2(WAKE_FILTER)]	= "filter",
+};
+static_assert(ARRAY_SIZE(wol_mode_names) == WOL_MODE_COUNT);
+
+const char sof_timestamping_names[][ETH_GSTRING_LEN] = {
+	[const_ilog2(SOF_TIMESTAMPING_TX_HARDWARE)]  = "hardware-transmit",
+	[const_ilog2(SOF_TIMESTAMPING_TX_SOFTWARE)]  = "software-transmit",
+	[const_ilog2(SOF_TIMESTAMPING_RX_HARDWARE)]  = "hardware-receive",
+	[const_ilog2(SOF_TIMESTAMPING_RX_SOFTWARE)]  = "software-receive",
+	[const_ilog2(SOF_TIMESTAMPING_SOFTWARE)]     = "software-system-clock",
+	[const_ilog2(SOF_TIMESTAMPING_SYS_HARDWARE)] = "hardware-legacy-clock",
+	[const_ilog2(SOF_TIMESTAMPING_RAW_HARDWARE)] = "hardware-raw-clock",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_ID)]       = "option-id",
+	[const_ilog2(SOF_TIMESTAMPING_TX_SCHED)]     = "sched-transmit",
+	[const_ilog2(SOF_TIMESTAMPING_TX_ACK)]       = "ack-transmit",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_CMSG)]     = "option-cmsg",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_TSONLY)]   = "option-tsonly",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_STATS)]    = "option-stats",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_PKTINFO)]  = "option-pktinfo",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_TX_SWHW)]  = "option-tx-swhw",
+	[const_ilog2(SOF_TIMESTAMPING_BIND_PHC)]     = "bind-phc",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_ID_TCP)]   = "option-id-tcp",
+	[const_ilog2(SOF_TIMESTAMPING_OPT_RX_FILTER)] = "option-rx-filter",
+	[const_ilog2(SOF_TIMESTAMPING_TX_COMPLETION)] = "tx-completion",
+};
+static_assert(ARRAY_SIZE(sof_timestamping_names) == __SOF_TIMESTAMPING_CNT);
+
+const char ts_tx_type_names[][ETH_GSTRING_LEN] = {
+	[HWTSTAMP_TX_OFF]		= "off",
+	[HWTSTAMP_TX_ON]		= "on",
+	[HWTSTAMP_TX_ONESTEP_SYNC]	= "onestep-sync",
+	[HWTSTAMP_TX_ONESTEP_P2P]	= "onestep-p2p",
+};
+static_assert(ARRAY_SIZE(ts_tx_type_names) == __HWTSTAMP_TX_CNT);
+
+const char ts_rx_filter_names[][ETH_GSTRING_LEN] = {
+	[HWTSTAMP_FILTER_NONE]			= "none",
+	[HWTSTAMP_FILTER_ALL]			= "all",
+	[HWTSTAMP_FILTER_SOME]			= "some",
+	[HWTSTAMP_FILTER_PTP_V1_L4_EVENT]	= "ptpv1-l4-event",
+	[HWTSTAMP_FILTER_PTP_V1_L4_SYNC]	= "ptpv1-l4-sync",
+	[HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ]	= "ptpv1-l4-delay-req",
+	[HWTSTAMP_FILTER_PTP_V2_L4_EVENT]	= "ptpv2-l4-event",
+	[HWTSTAMP_FILTER_PTP_V2_L4_SYNC]	= "ptpv2-l4-sync",
+	[HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ]	= "ptpv2-l4-delay-req",
+	[HWTSTAMP_FILTER_PTP_V2_L2_EVENT]	= "ptpv2-l2-event",
+	[HWTSTAMP_FILTER_PTP_V2_L2_SYNC]	= "ptpv2-l2-sync",
+	[HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ]	= "ptpv2-l2-delay-req",
+	[HWTSTAMP_FILTER_PTP_V2_EVENT]		= "ptpv2-event",
+	[HWTSTAMP_FILTER_PTP_V2_SYNC]		= "ptpv2-sync",
+	[HWTSTAMP_FILTER_PTP_V2_DELAY_REQ]	= "ptpv2-delay-req",
+	[HWTSTAMP_FILTER_NTP_ALL]		= "ntp-all",
+};
+static_assert(ARRAY_SIZE(ts_rx_filter_names) == __HWTSTAMP_FILTER_CNT);
+
+const char ts_flags_names[][ETH_GSTRING_LEN] = {
+	[const_ilog2(HWTSTAMP_FLAG_BONDED_PHC_INDEX)] = "bonded-phc-index",
+};
+static_assert(ARRAY_SIZE(ts_flags_names) == __HWTSTAMP_FLAG_CNT);
+
+const char udp_tunnel_type_names[][ETH_GSTRING_LEN] = {
+	[ETHTOOL_UDP_TUNNEL_TYPE_VXLAN]		= "vxlan",
+	[ETHTOOL_UDP_TUNNEL_TYPE_GENEVE]	= "geneve",
+	[ETHTOOL_UDP_TUNNEL_TYPE_VXLAN_GPE]	= "vxlan-gpe",
+};
+static_assert(ARRAY_SIZE(udp_tunnel_type_names) ==
+	      __ETHTOOL_UDP_TUNNEL_TYPE_CNT);
+
+/* return false if legacy contained non-0 deprecated fields
+ * maxtxpkt/maxrxpkt. rest of ksettings always updated
+ */
+bool
+convert_legacy_settings_to_link_ksettings(
+	struct ethtool_link_ksettings *link_ksettings,
+	const struct ethtool_cmd *legacy_settings)
+{
+	bool retval = true;
+
+	memset(link_ksettings, 0, sizeof(*link_ksettings));
+
+	/* This is used to tell users that driver is still using these
+	 * deprecated legacy fields, and they should not use
+	 * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
+	 */
+	if (legacy_settings->maxtxpkt ||
+	    legacy_settings->maxrxpkt)
+		retval = false;
+
+	ethtool_convert_legacy_u32_to_link_mode(
+		link_ksettings->link_modes.supported,
+		legacy_settings->supported);
+	ethtool_convert_legacy_u32_to_link_mode(
+		link_ksettings->link_modes.advertising,
+		legacy_settings->advertising);
+	ethtool_convert_legacy_u32_to_link_mode(
+		link_ksettings->link_modes.lp_advertising,
+		legacy_settings->lp_advertising);
+	link_ksettings->base.speed
+		= ethtool_cmd_speed(legacy_settings);
+	link_ksettings->base.duplex
+		= legacy_settings->duplex;
+	link_ksettings->base.port
+		= legacy_settings->port;
+	link_ksettings->base.phy_address
+		= legacy_settings->phy_address;
+	link_ksettings->base.autoneg
+		= legacy_settings->autoneg;
+	link_ksettings->base.mdio_support
+		= legacy_settings->mdio_support;
+	link_ksettings->base.eth_tp_mdix
+		= legacy_settings->eth_tp_mdix;
+	link_ksettings->base.eth_tp_mdix_ctrl
+		= legacy_settings->eth_tp_mdix_ctrl;
+	return retval;
+}
+
+int __ethtool_get_link(struct net_device *dev)
+{
+	if (!dev->ethtool_ops->get_link)
+		return -EOPNOTSUPP;
+
+	return netif_running(dev) && dev->ethtool_ops->get_link(dev);
+}
+
+int ethtool_get_rx_ring_count(struct net_device *dev)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+
+	if (!ops->get_rx_ring_count)
+		return -EOPNOTSUPP;
+
+	return ops->get_rx_ring_count(dev);
+}
+
+static int ethtool_get_rxnfc_rule_count(struct net_device *dev)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	struct ethtool_rxnfc info = {
+		.cmd = ETHTOOL_GRXCLSRLCNT,
+	};
+	int err;
+
+	err = ops->get_rxnfc(dev, &info, NULL);
+	if (err)
+		return err;
+
+	return info.rule_cnt;
+}
+
+/* Max offset for one RSS context */
+static u32 ethtool_get_rss_ctx_max_channel(struct ethtool_rxfh_context *ctx)
+{
+	u32 max_ring = 0;
+	u32 i, *tbl;
+
+	if (WARN_ON_ONCE(!ctx))
+		return 0;
+	tbl = ethtool_rxfh_context_indir(ctx);
+	for (i = 0; i < ctx->indir_size; i++)
+		max_ring = max(max_ring, tbl[i]);
+	return max_ring;
+}
+
+static int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	struct ethtool_rxnfc *info;
+	int err, i, rule_cnt;
+	u64 max_ring = 0;
+
+	if (!ops->get_rxnfc)
+		return -EOPNOTSUPP;
+
+	rule_cnt = ethtool_get_rxnfc_rule_count(dev);
+	if (rule_cnt <= 0)
+		return -EINVAL;
+
+	info = kvzalloc_flex(*info, rule_locs, rule_cnt);
+	if (!info)
+		return -ENOMEM;
+
+	info->cmd = ETHTOOL_GRXCLSRLALL;
+	info->rule_cnt = rule_cnt;
+	err = ops->get_rxnfc(dev, info, info->rule_locs);
+	if (err)
+		goto err_free_info;
+
+	for (i = 0; i < rule_cnt; i++) {
+		struct ethtool_rxnfc rule_info = {
+			.cmd = ETHTOOL_GRXCLSRULE,
+			.fs.location = info->rule_locs[i],
+		};
+
+		err = ops->get_rxnfc(dev, &rule_info, NULL);
+		if (err)
+			goto err_free_info;
+
+		if (rule_info.fs.ring_cookie != RX_CLS_FLOW_DISC &&
+		    rule_info.fs.ring_cookie != RX_CLS_FLOW_WAKE &&
+		    !ethtool_get_flow_spec_ring_vf(rule_info.fs.ring_cookie)) {
+			u64 ring = rule_info.fs.ring_cookie;
+
+			if (rule_info.flow_type & FLOW_RSS) {
+				struct ethtool_rxfh_context *ctx;
+
+				ctx = xa_load(&dev->ethtool->rss_ctx,
+					      rule_info.rss_context);
+				ring += ethtool_get_rss_ctx_max_channel(ctx);
+			}
+			max_ring = max_t(u64, max_ring, ring);
+		}
+	}
+
+	kvfree(info);
+	*max = max_ring;
+	return 0;
+
+err_free_info:
+	kvfree(info);
+	return err;
+}
+
+/* Max offset across all of a device's RSS contexts */
+static u32 ethtool_get_max_rss_ctx_channel(struct net_device *dev)
+{
+	struct ethtool_rxfh_context *ctx;
+	unsigned long context;
+	u32 max_ring = 0;
+
+	mutex_lock(&dev->ethtool->rss_lock);
+	xa_for_each(&dev->ethtool->rss_ctx, context, ctx)
+		max_ring = max(max_ring, ethtool_get_rss_ctx_max_channel(ctx));
+	mutex_unlock(&dev->ethtool->rss_lock);
+
+	return max_ring;
+}
+
+static u32 ethtool_get_max_rxfh_channel(struct net_device *dev)
+{
+	struct ethtool_rxfh_param rxfh = {};
+	u32 dev_size, current_max = 0;
+	int ret;
+
+	/* While we do track whether RSS context has an indirection
+	 * table explicitly set by the user, no driver looks at that bit.
+	 * Assume drivers won't auto-regenerate the additional tables,
+	 * to be safe.
+	 */
+	current_max = ethtool_get_max_rss_ctx_channel(dev);
+
+	if (!netif_is_rxfh_configured(dev))
+		return current_max;
+
+	if (!dev->ethtool_ops->get_rxfh_indir_size ||
+	    !dev->ethtool_ops->get_rxfh)
+		return current_max;
+	dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
+	if (dev_size == 0)
+		return current_max;
+
+	rxfh.indir = kzalloc_objs(rxfh.indir[0], dev_size, GFP_USER);
+	if (!rxfh.indir)
+		return U32_MAX;
+
+	mutex_lock(&dev->ethtool->rss_lock);
+	ret = dev->ethtool_ops->get_rxfh(dev, &rxfh);
+	mutex_unlock(&dev->ethtool->rss_lock);
+	if (ret) {
+		current_max = U32_MAX;
+		goto out_free;
+	}
+
+	while (dev_size--)
+		current_max = max(current_max, rxfh.indir[dev_size]);
+
+out_free:
+	kfree(rxfh.indir);
+	return current_max;
+}
+
+int ethtool_check_max_channel(struct net_device *dev,
+			      struct ethtool_channels channels,
+			      struct genl_info *info)
+{
+	u64 max_rxnfc_in_use;
+	u32 max_rxfh_in_use;
+	int max_mp_in_use;
+
+	/* ensure the new Rx count fits within the configured Rx flow
+	 * indirection table/rxnfc settings
+	 */
+	if (ethtool_get_max_rxnfc_channel(dev, &max_rxnfc_in_use))
+		max_rxnfc_in_use = 0;
+	max_rxfh_in_use = ethtool_get_max_rxfh_channel(dev);
+	if (channels.combined_count + channels.rx_count <= max_rxfh_in_use) {
+		if (info)
+			GENL_SET_ERR_MSG_FMT(info, "requested channel counts are too low for existing indirection table (%d)", max_rxfh_in_use);
+		return -EINVAL;
+	}
+	if (channels.combined_count + channels.rx_count <= max_rxnfc_in_use) {
+		if (info)
+			GENL_SET_ERR_MSG(info, "requested channel counts are too low for existing ntuple filter settings");
+		return -EINVAL;
+	}
+
+	max_mp_in_use = dev_get_min_mp_channel_count(dev);
+	if (channels.combined_count + channels.rx_count <= max_mp_in_use) {
+		if (info)
+			GENL_SET_ERR_MSG_FMT(info, "requested channel counts are too low for existing memory provider setting (%d)", max_mp_in_use);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int ethtool_check_rss_ctx_busy(struct net_device *dev, u32 rss_context)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	struct ethtool_rxnfc *info;
+	int rc, i, rule_cnt;
+
+	if (!ops->get_rxnfc)
+		return 0;
+
+	rule_cnt = ethtool_get_rxnfc_rule_count(dev);
+	if (!rule_cnt)
+		return 0;
+
+	if (rule_cnt < 0)
+		return -EINVAL;
+
+	info = kvzalloc_flex(*info, rule_locs, rule_cnt);
+	if (!info)
+		return -ENOMEM;
+
+	info->cmd = ETHTOOL_GRXCLSRLALL;
+	info->rule_cnt = rule_cnt;
+	rc = ops->get_rxnfc(dev, info, info->rule_locs);
+	if (rc)
+		goto out_free;
+
+	for (i = 0; i < rule_cnt; i++) {
+		struct ethtool_rxnfc rule_info = {
+			.cmd = ETHTOOL_GRXCLSRULE,
+			.fs.location = info->rule_locs[i],
+		};
+
+		rc = ops->get_rxnfc(dev, &rule_info, NULL);
+		if (rc)
+			goto out_free;
+
+		if (rule_info.fs.flow_type & FLOW_RSS &&
+		    rule_info.rss_context == rss_context) {
+			rc = -EBUSY;
+			goto out_free;
+		}
+	}
+
+out_free:
+	kvfree(info);
+	return rc;
+}
+
+struct ethtool_rxfh_context *
+ethtool_rxfh_ctx_alloc(const struct ethtool_ops *ops,
+		       u32 indir_size, u32 key_size)
+{
+	size_t indir_bytes, flex_len, key_off, size;
+	struct ethtool_rxfh_context *ctx;
+	u32 priv_bytes, indir_max;
+	u16 key_max;
+
+	key_max = max(key_size, ops->rxfh_key_space);
+	indir_max = max(indir_size, ops->rxfh_indir_space);
+
+	priv_bytes = ALIGN(ops->rxfh_priv_size, sizeof(u32));
+	indir_bytes = array_size(indir_max, sizeof(u32));
+
+	key_off = size_add(priv_bytes, indir_bytes);
+	flex_len = size_add(key_off, key_max);
+	size = struct_size_t(struct ethtool_rxfh_context, data, flex_len);
+
+	ctx = kzalloc(size, GFP_KERNEL_ACCOUNT);
+	if (!ctx)
+		return NULL;
+
+	ctx->indir_size = indir_size;
+	ctx->key_size = key_size;
+	ctx->key_off = key_off;
+	ctx->priv_size = ops->rxfh_priv_size;
+
+	return ctx;
+}
+
+/* Check if fields configured for flow hash are symmetric - if src is included
+ * so is dst and vice versa.
+ */
+int ethtool_rxfh_config_is_sym(u64 rxfh)
+{
+	bool sym;
+
+	sym = rxfh == (rxfh & (RXH_IP_SRC | RXH_IP_DST |
+			       RXH_L4_B_0_1 | RXH_L4_B_2_3));
+	sym &= !!(rxfh & RXH_IP_SRC)   == !!(rxfh & RXH_IP_DST);
+	sym &= !!(rxfh & RXH_L4_B_0_1) == !!(rxfh & RXH_L4_B_2_3);
+
+	return sym;
+}
+
+int ethtool_check_ops(const struct ethtool_ops *ops)
+{
+	if (WARN_ON(ops->set_coalesce && !ops->supported_coalesce_params))
+		return -EINVAL;
+	if (WARN_ON(ops->rxfh_max_num_contexts == 1))
+		return -EINVAL;
+	if (WARN_ON(ops->supported_input_xfrm && !ops->get_rxfh_fields))
+		return -EINVAL;
+	if (WARN_ON(ops->supported_input_xfrm &&
+		    ops->rxfh_per_ctx_fields != ops->rxfh_per_ctx_key))
+		return -EINVAL;
+
+	/* NOTE: sufficiently insane drivers may swap ethtool_ops at runtime,
+	 * the fact that ops are checked at registration time does not
+	 * mean the ops attached to a netdev later on are sane.
+	 */
+	return 0;
+}
+
+void ethtool_ringparam_get_cfg(struct net_device *dev,
+			       struct ethtool_ringparam *param,
+			       struct kernel_ethtool_ringparam *kparam,
+			       struct netlink_ext_ack *extack)
+{
+	memset(param, 0, sizeof(*param));
+	memset(kparam, 0, sizeof(*kparam));
+
+	param->cmd = ETHTOOL_GRINGPARAM;
+	dev->ethtool_ops->get_ringparam(dev, param, kparam, extack);
+
+	/* Driver gives us current state, we want to return current config */
+	kparam->tcp_data_split = dev->cfg->hds_config;
+	kparam->hds_thresh = dev->cfg->hds_thresh;
+}
+
+static void ethtool_init_tsinfo(struct kernel_ethtool_ts_info *info)
+{
+	memset(info, 0, sizeof(*info));
+	info->cmd = ETHTOOL_GET_TS_INFO;
+	info->phc_index = -1;
+}
+
+int ethtool_net_get_ts_info_by_phc(struct net_device *dev,
+				   struct kernel_ethtool_ts_info *info,
+				   struct hwtstamp_provider_desc *hwprov_desc)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	int err;
+
+	if (!ops->get_ts_info)
+		return -EOPNOTSUPP;
+
+	/* Does ptp comes from netdev */
+	ethtool_init_tsinfo(info);
+	info->phc_qualifier = hwprov_desc->qualifier;
+	err = ops->get_ts_info(dev, info);
+	if (err)
+		return err;
+
+	if (info->phc_index == hwprov_desc->index &&
+	    net_support_hwtstamp_qualifier(dev, hwprov_desc->qualifier))
+		return 0;
+
+	return -ENODEV;
+}
+
+struct phy_device *
+ethtool_phy_get_ts_info_by_phc(struct net_device *dev,
+			       struct kernel_ethtool_ts_info *info,
+			       struct hwtstamp_provider_desc *hwprov_desc)
+{
+	int err;
+
+	/* Only precise qualifier is supported in phydev */
+	if (hwprov_desc->qualifier != HWTSTAMP_PROVIDER_QUALIFIER_PRECISE)
+		return ERR_PTR(-ENODEV);
+
+	/* Look in the phy topology */
+	if (dev->link_topo) {
+		struct phy_device_node *pdn;
+		unsigned long phy_index;
+
+		xa_for_each(&dev->link_topo->phys, phy_index, pdn) {
+			if (!phy_has_tsinfo(pdn->phy))
+				continue;
+
+			ethtool_init_tsinfo(info);
+			err = phy_ts_info(pdn->phy, info);
+			if (err)
+				return ERR_PTR(err);
+
+			if (info->phc_index == hwprov_desc->index)
+				return pdn->phy;
+		}
+		return ERR_PTR(-ENODEV);
+	}
+
+	/* Look on the dev->phydev */
+	if (phy_has_tsinfo(dev->phydev)) {
+		ethtool_init_tsinfo(info);
+		err = phy_ts_info(dev->phydev, info);
+		if (err)
+			return ERR_PTR(err);
+
+		if (info->phc_index == hwprov_desc->index)
+			return dev->phydev;
+	}
+
+	return ERR_PTR(-ENODEV);
+}
+
+int ethtool_get_ts_info_by_phc(struct net_device *dev,
+			       struct kernel_ethtool_ts_info *info,
+			       struct hwtstamp_provider_desc *hwprov_desc)
+{
+	int err;
+
+	err = ethtool_net_get_ts_info_by_phc(dev, info, hwprov_desc);
+	if (err == -ENODEV || err == -EOPNOTSUPP) {
+		struct phy_device *phy;
+
+		phy = ethtool_phy_get_ts_info_by_phc(dev, info, hwprov_desc);
+		if (IS_ERR(phy))
+			return PTR_ERR(phy);
+
+		/* Report the phc source only if we have a real
+		 * phc source with an index.
+		 */
+		if (info->phc_index >= 0) {
+			info->phc_source = HWTSTAMP_SOURCE_PHYLIB;
+			info->phc_phyindex = phy->phyindex;
+		}
+		err = 0;
+	} else if (!err && info->phc_index >= 0) {
+		info->phc_source = HWTSTAMP_SOURCE_NETDEV;
+	}
+
+	info->so_timestamping |= SOF_TIMESTAMPING_RX_SOFTWARE |
+				 SOF_TIMESTAMPING_SOFTWARE;
+
+	return err;
+}
+
+int __ethtool_get_ts_info(struct net_device *dev,
+			  struct kernel_ethtool_ts_info *info)
+{
+	struct hwtstamp_provider *hwprov;
+	int err = 0;
+
+	rcu_read_lock();
+	hwprov = rcu_dereference(dev->hwprov);
+	/* No provider specified, use default behavior */
+	if (!hwprov) {
+		const struct ethtool_ops *ops = dev->ethtool_ops;
+		struct phy_device *phydev = dev->phydev;
+
+		ethtool_init_tsinfo(info);
+		if (phy_is_default_hwtstamp(phydev) &&
+		    phy_has_tsinfo(phydev)) {
+			err = phy_ts_info(phydev, info);
+			/* Report the phc source only if we have a real
+			 * phc source with an index.
+			 */
+			if (!err && info->phc_index >= 0) {
+				info->phc_source = HWTSTAMP_SOURCE_PHYLIB;
+				info->phc_phyindex = phydev->phyindex;
+			}
+		} else if (ops->get_ts_info) {
+			err = ops->get_ts_info(dev, info);
+			if (!err && info->phc_index >= 0)
+				info->phc_source = HWTSTAMP_SOURCE_NETDEV;
+		}
+
+		info->so_timestamping |= SOF_TIMESTAMPING_RX_SOFTWARE |
+					 SOF_TIMESTAMPING_SOFTWARE;
+
+		rcu_read_unlock();
+		return err;
+	}
+
+	err = ethtool_get_ts_info_by_phc(dev, info, &hwprov->desc);
+	rcu_read_unlock();
+	return err;
+}
+
+bool net_support_hwtstamp_qualifier(struct net_device *dev,
+				    enum hwtstamp_provider_qualifier qualifier)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+
+	if (!ops)
+		return false;
+
+	/* Return true with precise qualifier and with NIC without
+	 * qualifier description to not break the old behavior.
+	 */
+	if (!ops->supported_hwtstamp_qualifiers &&
+	    qualifier == HWTSTAMP_PROVIDER_QUALIFIER_PRECISE)
+		return true;
+
+	if (ops->supported_hwtstamp_qualifiers & BIT(qualifier))
+		return true;
+
+	return false;
+}
+
+int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index)
+{
+	struct kernel_ethtool_ts_info info = { };
+	int num = 0;
+
+	if (!__ethtool_get_ts_info(dev, &info))
+		num = ptp_get_vclocks_index(info.phc_index, vclock_index);
+
+	return num;
+}
+EXPORT_SYMBOL(ethtool_get_phc_vclocks);
+
+int ethtool_get_ts_info_by_layer(struct net_device *dev, struct kernel_ethtool_ts_info *info)
+{
+	return __ethtool_get_ts_info(dev, info);
+}
+EXPORT_SYMBOL(ethtool_get_ts_info_by_layer);
+
+const struct ethtool_phy_ops *ethtool_phy_ops;
+
+void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops)
+{
+	ASSERT_RTNL();
+	ethtool_phy_ops = ops;
+}
+EXPORT_SYMBOL_GPL(ethtool_set_ethtool_phy_ops);
+
+void
+ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
+			      enum ethtool_link_mode_bit_indices link_mode)
+{
+	const struct link_mode_info *link_info;
+
+	if (WARN_ON_ONCE(link_mode >= __ETHTOOL_LINK_MODE_MASK_NBITS))
+		return;
+
+	link_info = &link_mode_params[link_mode];
+	link_ksettings->base.speed = link_info->speed;
+	link_ksettings->lanes = link_info->lanes;
+	link_ksettings->base.duplex = link_info->duplex;
+}
+EXPORT_SYMBOL_GPL(ethtool_params_from_link_mode);
+
+/**
+ * ethtool_forced_speed_maps_init
+ * @maps: Pointer to an array of Ethtool forced speed map
+ * @size: Array size
+ *
+ * Initialize an array of Ethtool forced speed map to Ethtool link modes. This
+ * should be called during driver module init.
+ */
+void
+ethtool_forced_speed_maps_init(struct ethtool_forced_speed_map *maps, u32 size)
+{
+	for (u32 i = 0; i < size; i++) {
+		struct ethtool_forced_speed_map *map = &maps[i];
+
+		linkmode_set_bit_array(map->cap_arr, map->arr_size, map->caps);
+		map->cap_arr = NULL;
+		map->arr_size = 0;
+	}
+}
+EXPORT_SYMBOL_GPL(ethtool_forced_speed_maps_init);
+
+void ethtool_rxfh_context_lost(struct net_device *dev, u32 context_id)
+{
+	struct ethtool_rxfh_context *ctx;
+
+	WARN_ONCE(!rtnl_is_locked() &&
+		  !lockdep_is_held_type(&dev->ethtool->rss_lock, -1),
+		  "RSS context lock assertion failed\n");
+
+	netdev_err(dev, "device error, RSS context %d lost\n", context_id);
+	ctx = xa_erase(&dev->ethtool->rss_ctx, context_id);
+	kfree(ctx);
+	ethtool_rss_notify(dev, ETHTOOL_MSG_RSS_DELETE_NTF, context_id);
+}
+EXPORT_SYMBOL(ethtool_rxfh_context_lost);
+
+bool netif_is_rxfh_configured(const struct net_device *dev)
+{
+	return dev->ethtool->rss_indir_user_size;
+}
+EXPORT_SYMBOL(netif_is_rxfh_configured);
+
+/**
+ * ethtool_rxfh_indir_lost - Notify core that the RSS indirection table was lost
+ * @dev: network device
+ *
+ * Drivers should call this when the device can no longer maintain the
+ * user-configured indirection table, typically after a HW fault recovery
+ * that reduced the maximum queue count. Marks the default RSS context
+ * indirection table as unconfigured and sends an %ETHTOOL_MSG_RSS_NTF
+ * notification.
+ */
+void ethtool_rxfh_indir_lost(struct net_device *dev)
+{
+	WARN_ONCE(!rtnl_is_locked() &&
+		  !lockdep_is_held_type(&dev->ethtool->rss_lock, -1),
+		  "RSS context lock assertion failed\n");
+
+	netdev_err(dev, "device error, RSS indirection table lost\n");
+	dev->ethtool->rss_indir_user_size = 0;
+	ethtool_rss_notify(dev, ETHTOOL_MSG_RSS_NTF, 0);
+}
+EXPORT_SYMBOL(ethtool_rxfh_indir_lost);
+
+static bool ethtool_rxfh_is_periodic(const u32 *tbl, u32 old_size, u32 new_size)
+{
+	u32 i;
+
+	for (i = new_size; i < old_size; i++)
+		if (tbl[i] != tbl[i % new_size])
+			return false;
+	return true;
+}
+
+static bool ethtool_rxfh_can_resize(const u32 *tbl, u32 old_size, u32 new_size,
+				    u32 user_size)
+{
+	if (new_size == old_size)
+		return true;
+
+	if (!user_size)
+		return true;
+
+	if (new_size < old_size) {
+		if (new_size < user_size)
+			return false;
+		if (old_size % new_size)
+			return false;
+		if (!ethtool_rxfh_is_periodic(tbl, old_size, new_size))
+			return false;
+		return true;
+	}
+
+	if (new_size % old_size)
+		return false;
+	return true;
+}
+
+/* Resize without validation; caller must have called can_resize first */
+static void ethtool_rxfh_resize(u32 *tbl, u32 old_size, u32 new_size)
+{
+	u32 i;
+
+	/* Grow: replicate existing pattern; shrink is a no-op on the data */
+	for (i = old_size; i < new_size; i++)
+		tbl[i] = tbl[i % old_size];
+}
+
+/**
+ * ethtool_rxfh_indir_can_resize - Check if context 0 indir table can resize
+ * @dev: network device
+ * @tbl: indirection table
+ * @old_size: current number of entries in the table
+ * @new_size: desired number of entries
+ *
+ * Validate that @tbl can be resized from @old_size to @new_size without
+ * data loss. Uses the user_size floor from context 0. When user_size is
+ * zero the table is not user-configured and resize always succeeds.
+ * Read-only; does not modify the table.
+ *
+ * Return: true if resize is possible, false otherwise.
+ */
+bool ethtool_rxfh_indir_can_resize(struct net_device *dev, const u32 *tbl,
+				   u32 old_size, u32 new_size)
+{
+	return ethtool_rxfh_can_resize(tbl, old_size, new_size,
+				       dev->ethtool->rss_indir_user_size);
+}
+EXPORT_SYMBOL(ethtool_rxfh_indir_can_resize);
+
+/**
+ * ethtool_rxfh_indir_resize - Fold or unfold context 0 indirection table
+ * @dev: network device
+ * @tbl: indirection table (must have room for max(old_size, new_size) entries)
+ * @old_size: current number of entries in the table
+ * @new_size: desired number of entries
+ *
+ * Resize the default RSS context indirection table in place. Caller
+ * must have validated with ethtool_rxfh_indir_can_resize() first.
+ */
+void ethtool_rxfh_indir_resize(struct net_device *dev, u32 *tbl,
+			       u32 old_size, u32 new_size)
+{
+	if (!dev->ethtool->rss_indir_user_size)
+		return;
+
+	ethtool_rxfh_resize(tbl, old_size, new_size);
+}
+EXPORT_SYMBOL(ethtool_rxfh_indir_resize);
+
+/**
+ * ethtool_rxfh_ctxs_can_resize - Validate resize for all RSS contexts
+ * @dev: network device
+ * @new_indir_size: new indirection table size
+ *
+ * Validate that the indirection tables of all non-default RSS contexts
+ * can be resized to @new_indir_size. Read-only; does not modify any
+ * context. Intended to be paired with ethtool_rxfh_ctxs_resize().
+ *
+ * Return: 0 if all contexts can be resized, negative errno on failure.
+ */
+int ethtool_rxfh_ctxs_can_resize(struct net_device *dev, u32 new_indir_size)
+{
+	struct ethtool_rxfh_context *ctx;
+	unsigned long context;
+	int ret = 0;
+
+	if (!dev->ethtool_ops->rxfh_indir_space ||
+	    new_indir_size > dev->ethtool_ops->rxfh_indir_space)
+		return -EINVAL;
+
+	mutex_lock(&dev->ethtool->rss_lock);
+	xa_for_each(&dev->ethtool->rss_ctx, context, ctx) {
+		u32 *indir = ethtool_rxfh_context_indir(ctx);
+
+		if (!ethtool_rxfh_can_resize(indir, ctx->indir_size,
+					     new_indir_size,
+					     ctx->indir_user_size)) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	}
+unlock:
+	mutex_unlock(&dev->ethtool->rss_lock);
+	return ret;
+}
+EXPORT_SYMBOL(ethtool_rxfh_ctxs_can_resize);
+
+/**
+ * ethtool_rxfh_ctxs_resize - Resize all RSS context indirection tables
+ * @dev: network device
+ * @new_indir_size: new indirection table size
+ *
+ * Resize the indirection table of every non-default RSS context to
+ * @new_indir_size. Caller must have validated with
+ * ethtool_rxfh_ctxs_can_resize() first. An %ETHTOOL_MSG_RSS_NTF is
+ * sent for each resized context.
+ *
+ * Notifications are sent outside the RSS lock to avoid holding the
+ * mutex during notification delivery.
+ */
+void ethtool_rxfh_ctxs_resize(struct net_device *dev, u32 new_indir_size)
+{
+	struct ethtool_rxfh_context *ctx;
+	unsigned long context;
+
+	mutex_lock(&dev->ethtool->rss_lock);
+	xa_for_each(&dev->ethtool->rss_ctx, context, ctx) {
+		ethtool_rxfh_resize(ethtool_rxfh_context_indir(ctx),
+				    ctx->indir_size, new_indir_size);
+		ctx->indir_size = new_indir_size;
+	}
+	mutex_unlock(&dev->ethtool->rss_lock);
+
+	xa_for_each(&dev->ethtool->rss_ctx, context, ctx)
+		ethtool_rss_notify(dev, ETHTOOL_MSG_RSS_NTF, context);
+}
+EXPORT_SYMBOL(ethtool_rxfh_ctxs_resize);
+
+enum ethtool_link_medium ethtool_str_to_medium(const char *str)
+{
+	int i;
+
+	for (i = 0; i < __ETHTOOL_LINK_MEDIUM_LAST; i++)
+		if (!strcmp(ethtool_link_medium_names[i], str))
+			return i;
+
+	return ETHTOOL_LINK_MEDIUM_NONE;
+}
+EXPORT_SYMBOL_GPL(ethtool_str_to_medium);