Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Support usec resolution of TCP timestamps, enabled selectively by a
     route attribute.

   - Defer regular TCP ACK while processing socket backlog, try to send
     a cumulative ACK at the end. Increase single TCP flow performance
     on a 200Gbit NIC by 20% (100Gbit -> 120Gbit).

   - The Fair Queuing (FQ) packet scheduler:
       - add built-in 3 band prio / WRR scheduling
       - support bypass if the qdisc is mostly idle (5% speed up for TCP RR)
       - improve inactive flow reporting
       - optimize the layout of structures for better cache locality

   - Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern
     replacement for the old MD5 option.

   - Add more retransmission timeout (RTO) related statistics to
     TCP_INFO.

   - Support sending fragmented skbs over vsock sockets.

   - Make sure we send SIGPIPE for vsock sockets if socket was
     shutdown().

   - Add sysctl for ignoring lower limit on lifetime in Router
     Advertisement PIO, based on an in-progress IETF draft.

   - Add sysctl to control activation of TCP ping-pong mode.

   - Add sysctl to make connection timeout in MPTCP configurable.

   - Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps
     limit the number of wakeups.

   - Support netlink GET for MDB (multicast forwarding), allowing user
     space to request a single MDB entry instead of dumping the entire
     table.

   - Support selective FDB flushing in the VXLAN tunnel driver.

   - Allow limiting learned FDB entries in bridges, prevent OOM attacks.

   - Allow controlling via configfs netconsole targets which were
     created via the kernel cmdline at boot, rather than via configfs at
     runtime.

   - Support multiple PTP timestamp event queue readers with different
     filters.

   - MCTP over I3C.

  BPF:

   - Add new veth-like netdevice where BPF program defines the logic of
     the xmit routine. It can operate in L3 and L2 mode.

   - Support exceptions - allow asserting conditions which should never
     be true but are hard for the verifier to infer. With some extra
     flexibility around handling of the exit / failure:

          https://lwn.net/Articles/938435/

   - Add support for local per-cpu kptr, allow allocating and storing
     per-cpu objects in maps. Access to those objects operates on the
     value for the current CPU.

     This allows to deprecate local one-off implementations of per-CPU
     storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps.

   - Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is
     for systemd to re-implement the LogNamespace feature which allows
     running multiple instances of systemd-journald to process the logs
     of different services.

   - Enable open-coded task_vma iteration, after maple tree conversion
     made it hard to directly walk VMAs in tracing programs.

   - Add open-coded task, css_task and css iterator support. One of the
     use cases is customizable OOM victim selection via BPF.

   - Allow source address selection with bpf_*_fib_lookup().

   - Add ability to pin BPF timer to the current CPU.

   - Prevent creation of infinite loops by combining tail calls and
     fentry/fexit programs.

   - Add missed stats for kprobes to retrieve the number of missed
     kprobe executions and subsequent executions of BPF programs.

   - Inherit system settings for CPU security mitigations.

   - Add BPF v4 CPU instruction support for arm32 and s390x.

  Changes to common code:

   - overflow: add DEFINE_FLEX() for on-stack definition of structs with
     flexible array members.

   - Process doc update with more guidance for reviewers.

  Driver API:

   - Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy
     mutex in most places and remove a lot of smaller locks.

   - Create a common DPLL configuration API. Allow configuring and
     querying state of PLL circuits used for clock syntonization, in
     network time distribution.

   - Unify fragmented and full page allocation APIs in page pool code.
     Let drivers be ignorant of PAGE_SIZE.

   - Rework PHY state machine to avoid races with calls to phy_stop().

   - Notify DSA drivers of MAC address changes on user ports, improve
     correctness of offloads which depend on matching port MAC
     addresses.

   - Allow antenna control on injected WiFi frames.

   - Reduce the number of variants of napi_schedule().

   - Simplify error handling when composing devlink health messages.

  Misc:

   - A lot of KCSAN data race "fixes", from Eric.

   - A lot of __counted_by() annotations, from Kees.

   - A lot of strncpy -> strscpy and printf format fixes.

   - Replace master/slave terminology with conduit/user in DSA drivers.

   - Handful of KUnit tests for netdev and WiFi core.

  Removed:

   - AppleTalk COPS.

   - AppleTalk ipddp.

   - TI AR7 CPMAC Ethernet driver.

  Drivers:

   - Ethernet high-speed NICs:
      - Intel (100G, ice, idpf):
         - add a driver for the Intel E2000 IPUs
         - make CRC/FCS stripping configurable
         - cross-timestamping for E823 devices
         - basic support for E830 devices
         - use aux-bus for managing client drivers
         - i40e: report firmware versions via devlink
      - nVidia/Mellanox:
         - support 4-port NICs
         - increase max number of channels to 256
         - optimize / parallelize SF creation flow
      - Broadcom (bnxt):
         - enhance NIC temperature reporting
         - support PAM4 speeds and lane configuration
      - Marvell OcteonTX2:
         - PTP pulse-per-second output support
         - enable hardware timestamping for VFs
      - Solarflare/AMD:
         - conntrack NAT offload and offload for tunnels
      - Wangxun (ngbe/txgbe):
         - expose HW statistics
      - Pensando/AMD:
         - support PCI level reset
         - narrow down the condition under which skbs are linearized
      - Netronome/Corigine (nfp):
         - support CHACHA20-POLY1305 crypto in IPsec offload

   - Ethernet NICs embedded, slower, virtual:
      - Synopsys (stmmac):
         - add Loongson-1 SoC support
         - enable use of HW queues with no offload capabilities
         - enable PPS input support on all 5 channels
         - increase TX coalesce timer to 5ms
      - RealTek USB (r8152): improve efficiency of Rx by using GRO frags
      - xen: support SW packet timestamping
      - add drivers for implementations based on TI's PRUSS (AM64x EVM)

   - nVidia/Mellanox Ethernet datacenter switches:
      - avoid poor HW resource use on Spectrum-4 by better block
        selection for IPv6 multicast forwarding and ordering of blocks
        in ACL region

   - Ethernet embedded switches:
      - Microchip:
         - support configuring the drive strength for EMI compliance
         - ksz9477: partial ACL support
         - ksz9477: HSR offload
         - ksz9477: Wake on LAN
      - Realtek:
         - rtl8366rb: respect device tree config of the CPU port

   - Ethernet PHYs:
      - support Broadcom BCM5221 PHYs
      - TI dp83867: support hardware LED blinking

   - CAN:
      - add support for Linux-PHY based CAN transceivers
      - at91_can: clean up and use rx-offload helpers

   - WiFi:
      - MediaTek (mt76):
         - new sub-driver for mt7925 USB/PCIe devices
         - HW wireless <> Ethernet bridging in MT7988 chips
         - mt7603/mt7628 stability improvements
      - Qualcomm (ath12k):
         - WCN7850:
            - enable 320 MHz channels in 6 GHz band
            - hardware rfkill support
            - enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to
              make scan faster
            - read board data variant name from SMBIOS
        - QCN9274: mesh support
      - RealTek (rtw89):
         - TDMA-based multi-channel concurrency (MCC)
      - Silicon Labs (wfx):
         - Remain-On-Channel (ROC) support

   - Bluetooth:
      - ISO: many improvements for broadcast support
      - mark BCM4378/BCM4387 as BROKEN_LE_CODED
      - add support for QCA2066
      - btmtksdio: enable Bluetooth wakeup from suspend"

* tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits)
  net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers
  net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos()
  net: mana: Use xdp_set_features_flag instead of direct assignment
  vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size()
  iavf: delete the iavf client interface
  iavf: add a common function for undoing the interrupt scheme
  iavf: use unregister_netdev
  iavf: rely on netdev's own registered state
  iavf: fix the waiting time for initial reset
  iavf: in iavf_down, don't queue watchdog_task if comms failed
  iavf: simplify mutex_trylock+sleep loops
  iavf: fix comments about old bit locks
  doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name
  tools: ynl: introduce option to process unknown attributes or types
  ipvlan: properly track tx_errors
  netdevsim: Block until all devices are released
  nfp: using napi_build_skb() to replace build_skb()
  net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy"
  net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN
  net: dsa: microchip: Refactor switch shutdown routine for WoL preparation
  ...

1 files changed, 147 insertions, 1 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index cf27f106d4d5..329c545f65fd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -50,8 +50,18 @@ static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
 					 size_t count, loff_t *ppos)
 {
 	int ret;
+	bool force;
 
-	if (!iwl_mvm_is_ctdp_supported(mvm))
+	if (!kstrtobool(buf, &force))
+		IWL_DEBUG_INFO(mvm,
+			       "force start is %d [0=disabled, 1=enabled]\n",
+			       force);
+
+	/* we allow skipping cap support check and force stop ctdp
+	 * statistics collection and with guerantee that it is
+	 * safe to use.
+	 */
+	if (!force && !iwl_mvm_is_ctdp_supported(mvm))
 		return -EOPNOTSUPP;
 
 	if (!iwl_mvm_firmware_running(mvm) ||
@@ -65,6 +75,36 @@ static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
 	return ret ?: count;
 }
 
+static ssize_t iwl_dbgfs_start_ctdp_write(struct iwl_mvm *mvm,
+					  char *buf, size_t count,
+					  loff_t *ppos)
+{
+	int ret;
+	bool force;
+
+	if (!kstrtobool(buf, &force))
+		IWL_DEBUG_INFO(mvm,
+			       "force start is %d [0=disabled, 1=enabled]\n",
+			       force);
+
+	/* we allow skipping cap support check and force enable ctdp
+	 * for statistics collection and with guerantee that it is
+	 * safe to use.
+	 */
+	if (!force && !iwl_mvm_is_ctdp_supported(mvm))
+		return -EOPNOTSUPP;
+
+	if (!iwl_mvm_firmware_running(mvm) ||
+	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
+		return -EIO;
+
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, 0);
+	mutex_unlock(&mvm->mutex);
+
+	return ret ?: count;
+}
+
 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
 					    size_t count, loff_t *ppos)
 {
@@ -965,6 +1005,13 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 	char *buf;
 	int ret;
 	size_t bufsz;
+	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
+					   WIDE_ID(SYSTEM_GROUP,
+						   SYSTEM_STATISTICS_CMD),
+					   IWL_FW_CMD_VER_UNKNOWN);
+
+	if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
+		return -EOPNOTSUPP;
 
 	if (iwl_mvm_has_new_rx_stats_api(mvm))
 		bufsz = ((sizeof(struct mvm_statistics_rx) /
@@ -1144,6 +1191,101 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 }
 #undef PRINT_STAT_LE32
 
+static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file,
+					      char __user *user_buf,
+					      size_t count, loff_t *ppos)
+{
+	char *buff, *pos, *endpos;
+	int ret;
+	size_t bufsz;
+	int i;
+	struct iwl_mvm_vif *mvmvif;
+	struct ieee80211_vif *vif;
+	struct iwl_mvm *mvm = file->private_data;
+	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
+					   WIDE_ID(SYSTEM_GROUP,
+						   SYSTEM_STATISTICS_CMD),
+					   IWL_FW_CMD_VER_UNKNOWN);
+
+	/* in case of a wrong cmd version, allocate buffer only for error msg */
+	bufsz = (cmd_ver == 1) ? 4096 : 64;
+
+	buff = kzalloc(bufsz, GFP_KERNEL);
+	if (!buff)
+		return -ENOMEM;
+
+	pos = buff;
+	endpos = pos + bufsz;
+
+	if (cmd_ver != 1) {
+		pos += scnprintf(pos, endpos - pos,
+				 "System stats not supported:%d\n", cmd_ver);
+		goto send_out;
+	}
+
+	mutex_lock(&mvm->mutex);
+	if (iwl_mvm_firmware_running(mvm))
+		iwl_mvm_request_statistics(mvm, false);
+
+	for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
+		vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
+		if (!vif)
+			continue;
+
+		if (vif->type == NL80211_IFTYPE_STATION)
+			break;
+	}
+
+	if (i == NUM_MAC_INDEX_DRIVER || !vif) {
+		pos += scnprintf(pos, endpos - pos, "vif is NULL\n");
+		goto release_send_out;
+	}
+
+	mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	if (!mvmvif) {
+		pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n");
+		goto release_send_out;
+	}
+
+	for_each_mvm_vif_valid_link(mvmvif, i) {
+		struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i];
+
+		pos += scnprintf(pos, endpos - pos,
+				 "link_id %d", i);
+		pos += scnprintf(pos, endpos - pos,
+				 " num_beacons %d",
+				 link_info->beacon_stats.num_beacons);
+		pos += scnprintf(pos, endpos - pos,
+				 " accu_num_beacons %d",
+				 link_info->beacon_stats.accu_num_beacons);
+		pos += scnprintf(pos, endpos - pos,
+				 " avg_signal %d\n",
+				 link_info->beacon_stats.avg_signal);
+	}
+
+	pos += scnprintf(pos, endpos - pos,
+			 "radio_stats.rx_time %lld\n",
+			 mvm->radio_stats.rx_time);
+	pos += scnprintf(pos, endpos - pos,
+			 "radio_stats.tx_time %lld\n",
+			 mvm->radio_stats.tx_time);
+	pos += scnprintf(pos, endpos - pos,
+			 "accu_radio_stats.rx_time %lld\n",
+			 mvm->accu_radio_stats.rx_time);
+	pos += scnprintf(pos, endpos - pos,
+			 "accu_radio_stats.tx_time %lld\n",
+			 mvm->accu_radio_stats.tx_time);
+
+release_send_out:
+	mutex_unlock(&mvm->mutex);
+
+send_out:
+	ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
+	kfree(buff);
+
+	return ret;
+}
+
 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 					  char __user *user_buf, size_t count,
 					  loff_t *ppos,
@@ -1998,6 +2140,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
 /* Device wide debugfs entries */
 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
+MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8);
 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
@@ -2012,6 +2155,7 @@ MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
+MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats);
 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
 MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
@@ -2210,6 +2354,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
 	MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
+	MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400);
@@ -2218,6 +2363,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
 	MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
+	MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400);
 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);