Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster

Pull networking updates from Jakub Kicinski:
 "Not much excitement - a handful of large patchsets (devmem among them)
  did not make it in time.

  Core & protocols:

   - Use local_lock in addition to local_bh_disable() to protect per-CPU
     resources in networking, a step closer for local_bh_disable() not
     to act as a big lock on PREEMPT_RT

   - Use flex array for netdevice priv area, ensure its cache alignment

   - Add a sysctl knob to allow user to specify a default rto_min at
     socket init time. Bit of a big hammer but multiple companies were
     independently carrying such patch downstream so clearly it's useful

   - Support scheduling transmission of packets based on CLOCK_TAI

   - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
     off using cpusets

   - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

   - Allow configuration of multipath hash seed, to both allow
     synchronizing hashing of two routers, and preventing partial
     accidental sync

   - Improve TCP compliance with RFC 9293 for simultaneous connect()

   - Support sending NAT keepalives in IPsec ESP in UDP states.
     Userspace IKE daemon had to do this before, but the kernel can
     better keep track of it

   - Support sending supervision HSR frames with MAC addresses stored in
     ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

   - Introduce IPPROTO_SMC for selecting SMC when socket is created

   - Allow UDP GSO transmit from devices with no checksum offload

   - openvswitch: add packet sampling via psample, separating the
     sampled traffic from "upcall" packets sent to user space for
     forwarding

   - nf_tables: shrink memory consumption for transaction objects

  Things we sprinkled into general kernel code:

   - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
     QCA6390)           [ Already merged separately - Linus ]

   - Add IRQ information in sysfs for auxiliary bus

   - Introduce guard definition for local_lock

   - Add aligned flavor of __cacheline_group_{begin, end}() markings for
     grouping fields in structures

  BPF:

   - Notify user space (via epoll) when a struct_ops object is getting
     detached/unregistered

   - Add new kfuncs for a generic, open-coded bits iterator

   - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
     bpf_list_head

   - Support resilient split BTF which cuts down on duplication and
     makes BTF as compact as possible WRT BTF from modules

   - Add support for dumping kfunc prototypes from BTF which enables
     both detecting as well as dumping compilable prototypes for kfuncs

   - riscv64 BPF JIT improvements in particular to add 12-argument
     support for BPF trampolines and to utilize bpf_prog_pack for the
     latter

   - Add the capability to offload the netfilter flowtable in XDP layer
     through kfuncs

  Driver API:

   - Allow users to configure IRQ tresholds between which automatic IRQ
     moderation can choose

   - Expand Power Sourcing (PoE) status with power, class and failure
     reason. Support setting power limits

   - Track additional RSS contexts in the core, make sure configuration
     changes don't break them

   - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
     ESP data paths

   - Support updating firmware on SFP modules

  Tests and tooling:

   - mptcp: use net/lib.sh to manage netns

   - TCP-AO and TCP-MD5: replace debug prints used by tests with
     tracepoints

   - openvswitch: make test self-contained (don't depend on OvS CLI
     tools)

  Drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - increase the max total outstanding PTP TX packets to 4
         - add timestamping statistics support
         - implement netdev_queue_mgmt_ops
         - support new RSS context API
      - Intel (100G, ice, idpf):
         - implement FEC statistics and dumping signal quality indicators
         - support E825C products (with 56Gbps PHYs)
      - nVidia/Mellanox:
         - support HW-GRO
         - mlx4/mlx5: support per-queue statistics via netlink
         - obey the max number of EQs setting in sub-functions
      - AMD/Solarflare:
         - support new RSS context API
      - AMD/Pensando:
         - ionic: rework fix for doorbell miss to lower overhead and
           skip it on new HW
      - Wangxun:
         - txgbe: support Flow Director perfect filters

   - Ethernet NICs consumer, embedded and virtual:
      - Add driver for Tehuti Networks TN40xx chips
      - Add driver for Meta's internal NIC chips
      - Add driver for Ethernet MAC on Airoha EN7581 SoCs
      - Add driver for Renesas Ethernet-TSN devices
      - Google cloud vNIC:
         - flow steering support
      - Microsoft vNIC:
         - support page sizes other than 4KB on ARM64
      - vmware vNIC:
         - support latency measurement (update to version 9)
      - VirtIO net:
         - support for Byte Queue Limits
         - support configuring thresholds for automatic IRQ moderation
         - support for AF_XDP Rx zero-copy
      - Synopsys (stmmac):
         - support for STM32MP13 SoC
         - let platforms select the right PCS implementation
      - TI:
         - icssg-prueth: add multicast filtering support
         - icssg-prueth: enable PTP timestamping and PPS
      - Renesas:
         - ravb: improve Rx performance 30-400% by using page pool,
           theaded NAPI and timer-based IRQ coalescing
         - ravb: add MII support for R-Car V4M
      - Cadence (macb):
         - macb: add ARP support to Wake-On-LAN
      - Cortina:
         - use phylib for RX and TX pause configuration

   - Ethernet switches:
      - nVidia/Mellanox:
         - support configuration of multipath hash seed
         - report more accurate max MTU
         - use page_pool to improve Rx performance
      - MediaTek:
         - mt7530: add support for bridge port isolation
      - Qualcomm:
         - qca8k: add support for bridge port isolation
      - Microchip:
         - lan9371/2: add 100BaseTX PHY support
      - NXP:
         - vsc73xx: implement VLAN operations

   - Ethernet PHYs:
      - aquantia: enable support for aqr115c
      - aquantia: add support for PHY LEDs
      - realtek: add support for rtl8224 2.5Gbps PHY
      - xpcs: add memory-mapped device support
      - add BroadR-Reach link mode and support in Broadcom's PHY driver

   - CAN:
      - add document for ISO 15765-2 protocol support
      - mcp251xfd: workaround for erratum DS80000789E, use timestamps to
        catch when device returns incorrect FIFO status

   - WiFi:
      - mac80211/cfg80211:
         - parse Transmit Power Envelope (TPE) data in mac80211 instead
           of in drivers
         - improvements for 6 GHz regulatory flexibility
         - multi-link improvements
         - support multiple radios per wiphy
         - remove DEAUTH_NEED_MGD_TX_PREP flag
      - Intel (iwlwifi):
         - bump FW API to 91 for BZ/SC devices
         - report 64-bit radiotap timestamp
         - enable P2P low latency by default
         - handle Transmit Power Envelope (TPE) advertised by AP
         - remove support for older FW for new devices
         - fast resume (keeping the device configured)
         - mvm: re-enable Multi-Link Operation (MLO)
         - aggregation (A-MSDU) optimizations
      - MediaTek (mt76):
         - mt7925 Multi-Link Operation (MLO) support
      - Qualcomm (ath10k):
         - LED support for various chipsets
      - Qualcomm (ath12k):
         - remove unsupported Tx monitor handling
         - support channel 2 in 6 GHz band
         - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
         - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
           Advertisements (EMA)
         - support dynamic VLAN
         - add panic handler for resetting the firmware state
         - DebugFS support for datapath statistics
         - WCN7850: support for Wake on WLAN
      - Microchip (wilc1000):
         - read MAC address during probe to make it visible to user space
         - suspend/resume improvements
      - TI (wl18xx):
         - support newer firmware versions
      - RealTek (rtw89):
         - preparation for RTL8852BE-VT support
         - Wake on WLAN support for WiFi 6 chips
         - 36-bit PCI DMA support
      - RealTek (rtlwifi):
         - RTL8192DU support
      - Broadcom (brcmfmac):
         - Management Frame Protection support (to enable WPA3)

   - Bluetooth:
      - qualcomm: use the power sequencer for QCA6390
      - btusb: mediatek: add ISO data transmission functions
      - hci_bcm4377: add BCM4388 support
      - btintel: add support for BlazarU core
      - btintel: add support for Whale Peak2
      - btnxpuart: add support for AW693 A1 chipset
      - btnxpuart: add support for IW615 chipset
      - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
  eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
  tcp: Replace strncpy() with strscpy()
  wifi: ath12k: fix build vs old compiler
  tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
  eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
  eth: fbnic: Add L2 address programming
  eth: fbnic: Add basic Rx handling
  eth: fbnic: Add basic Tx handling
  eth: fbnic: Add link detection
  eth: fbnic: Add initial messaging to notify FW of our presence
  eth: fbnic: Implement Rx queue alloc/start/stop/free
  eth: fbnic: Implement Tx queue alloc/start/stop/free
  eth: fbnic: Allocate a netdevice and napi vectors with queues
  eth: fbnic: Add FW communication mechanism
  eth: fbnic: Add message parsing for FW messages
  eth: fbnic: Add register init to set PCIe/Ethernet device config
  eth: fbnic: Allocate core device specific structures and devlink interface
  eth: fbnic: Add scaffolding for Meta's NIC driver
  PCI: Add Meta Platforms vendor ID
  net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
  ...

1 files changed, 181 insertions, 9 deletions

diff --git a/drivers/net/wireless/realtek/rtw89/regd.c b/drivers/net/wireless/realtek/rtw89/regd.c
index 1a133914f673..a251b0e3b16e 100644
--- a/drivers/net/wireless/realtek/rtw89/regd.c
+++ b/drivers/net/wireless/realtek/rtw89/regd.c
@@ -714,7 +714,154 @@ exit:
 	mutex_unlock(&rtwdev->mutex);
 }
 
-static void __rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev)
+/* Maximum Transmit Power field (@raw) can be EIRP or PSD.
+ * Both units are 0.5 dB-based. Return a constraint in dB.
+ */
+static s8 tpe_get_constraint(s8 raw)
+{
+	const u8 hw_deviation = 3; /* unit: 0.5 dB */
+	const u8 antenna_gain = 10; /* unit: 0.5 dB */
+	const u8 array_gain = 6; /* unit: 0.5 dB */
+	const u8 offset = hw_deviation + antenna_gain + array_gain;
+
+	return (raw - offset) / 2;
+}
+
+static void tpe_intersect_constraint(struct rtw89_reg_6ghz_tpe *tpe, s8 cstr)
+{
+	if (tpe->valid) {
+		tpe->constraint = min(tpe->constraint, cstr);
+		return;
+	}
+
+	tpe->constraint = cstr;
+	tpe->valid = true;
+}
+
+static void tpe_deal_with_eirp(struct rtw89_reg_6ghz_tpe *tpe,
+			       const struct ieee80211_parsed_tpe_eirp *eirp)
+{
+	unsigned int i;
+	s8 cstr;
+
+	if (!eirp->valid)
+		return;
+
+	for (i = 0; i < eirp->count; i++) {
+		cstr = tpe_get_constraint(eirp->power[i]);
+		tpe_intersect_constraint(tpe, cstr);
+	}
+}
+
+static s8 tpe_convert_psd_to_eirp(s8 psd)
+{
+	static const unsigned int mlog20 = 1301;
+
+	return psd + 10 * mlog20 / 1000;
+}
+
+static void tpe_deal_with_psd(struct rtw89_reg_6ghz_tpe *tpe,
+			      const struct ieee80211_parsed_tpe_psd *psd)
+{
+	unsigned int i;
+	s8 cstr_psd;
+	s8 cstr;
+
+	if (!psd->valid)
+		return;
+
+	for (i = 0; i < psd->count; i++) {
+		cstr_psd = tpe_get_constraint(psd->power[i]);
+		cstr = tpe_convert_psd_to_eirp(cstr_psd);
+		tpe_intersect_constraint(tpe, cstr);
+	}
+}
+
+static void rtw89_calculate_tpe(struct rtw89_dev *rtwdev,
+				struct rtw89_reg_6ghz_tpe *result_tpe,
+				const struct ieee80211_parsed_tpe *parsed_tpe)
+{
+	static const u8 category = IEEE80211_TPE_CAT_6GHZ_DEFAULT;
+
+	tpe_deal_with_eirp(result_tpe, &parsed_tpe->max_local[category]);
+	tpe_deal_with_eirp(result_tpe, &parsed_tpe->max_reg_client[category]);
+	tpe_deal_with_psd(result_tpe, &parsed_tpe->psd_local[category]);
+	tpe_deal_with_psd(result_tpe, &parsed_tpe->psd_reg_client[category]);
+}
+
+static bool __rtw89_reg_6ghz_tpe_recalc(struct rtw89_dev *rtwdev)
+{
+	struct rtw89_regulatory_info *regulatory = &rtwdev->regulatory;
+	struct rtw89_reg_6ghz_tpe new = {};
+	struct rtw89_vif *rtwvif;
+	bool changed = false;
+
+	rtw89_for_each_rtwvif(rtwdev, rtwvif) {
+		const struct rtw89_reg_6ghz_tpe *tmp;
+		const struct rtw89_chan *chan;
+
+		chan = rtw89_chan_get(rtwdev, rtwvif->sub_entity_idx);
+		if (chan->band_type != RTW89_BAND_6G)
+			continue;
+
+		tmp = &rtwvif->reg_6ghz_tpe;
+		if (!tmp->valid)
+			continue;
+
+		tpe_intersect_constraint(&new, tmp->constraint);
+	}
+
+	if (memcmp(&regulatory->reg_6ghz_tpe, &new,
+		   sizeof(regulatory->reg_6ghz_tpe)) != 0)
+		changed = true;
+
+	if (changed) {
+		if (new.valid)
+			rtw89_debug(rtwdev, RTW89_DBG_REGD,
+				    "recalc 6 GHz reg TPE to %d dBm\n",
+				    new.constraint);
+		else
+			rtw89_debug(rtwdev, RTW89_DBG_REGD,
+				    "recalc 6 GHz reg TPE to none\n");
+
+		regulatory->reg_6ghz_tpe = new;
+	}
+
+	return changed;
+}
+
+static int rtw89_reg_6ghz_tpe_recalc(struct rtw89_dev *rtwdev,
+				     struct rtw89_vif *rtwvif, bool active,
+				     unsigned int *changed)
+{
+	struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
+	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+	struct rtw89_reg_6ghz_tpe *tpe = &rtwvif->reg_6ghz_tpe;
+
+	memset(tpe, 0, sizeof(*tpe));
+
+	if (!active || rtwvif->reg_6ghz_power != RTW89_REG_6GHZ_POWER_STD)
+		goto bottom;
+
+	rtw89_calculate_tpe(rtwdev, tpe, &bss_conf->tpe);
+	if (!tpe->valid)
+		goto bottom;
+
+	if (tpe->constraint < RTW89_MIN_VALID_POWER_CONSTRAINT) {
+		rtw89_err(rtwdev,
+			  "%s: constraint %d dBm is less than min valid val\n",
+			  __func__, tpe->constraint);
+
+		tpe->valid = false;
+		return -EINVAL;
+	}
+
+bottom:
+	*changed += __rtw89_reg_6ghz_tpe_recalc(rtwdev);
+	return 0;
+}
+
+static bool __rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev)
 {
 	struct rtw89_regulatory_info *regulatory = &rtwdev->regulatory;
 	const struct rtw89_regd *regd = regulatory->regd;
@@ -751,23 +898,21 @@ static void __rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev)
 	}
 
 	if (regulatory->reg_6ghz_power == sel)
-		return;
+		return false;
 
 	rtw89_debug(rtwdev, RTW89_DBG_REGD,
 		    "recalc 6 GHz reg power type to %d\n", sel);
 
 	regulatory->reg_6ghz_power = sel;
-
-	rtw89_core_set_chip_txpwr(rtwdev);
+	return true;
 }
 
-void rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev,
-				 struct rtw89_vif *rtwvif, bool active)
+static int rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev,
+				       struct rtw89_vif *rtwvif, bool active,
+				       unsigned int *changed)
 {
 	struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
 
-	lockdep_assert_held(&rtwdev->mutex);
-
 	if (active) {
 		switch (vif->bss_conf.power_type) {
 		case IEEE80211_REG_VLP_AP:
@@ -787,5 +932,32 @@ void rtw89_reg_6ghz_power_recalc(struct rtw89_dev *rtwdev,
 		rtwvif->reg_6ghz_power = RTW89_REG_6GHZ_POWER_DFLT;
 	}
 
-	__rtw89_reg_6ghz_power_recalc(rtwdev);
+	*changed += __rtw89_reg_6ghz_power_recalc(rtwdev);
+	return 0;
+}
+
+int rtw89_reg_6ghz_recalc(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif,
+			  bool active)
+{
+	unsigned int changed = 0;
+	int ret;
+
+	lockdep_assert_held(&rtwdev->mutex);
+
+	/* The result of reg_6ghz_tpe may depend on reg_6ghz_power type,
+	 * so must do reg_6ghz_tpe_recalc() after reg_6ghz_power_recalc().
+	 */
+
+	ret = rtw89_reg_6ghz_power_recalc(rtwdev, rtwvif, active, &changed);
+	if (ret)
+		return ret;
+
+	ret = rtw89_reg_6ghz_tpe_recalc(rtwdev, rtwvif, active, &changed);
+	if (ret)
+		return ret;
+
+	if (changed)
+		rtw89_core_set_chip_txpwr(rtwdev);
+
+	return 0;
 }