Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 528 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_taprio.c b/drivers/net/ethernet/microchip/lan966x/lan966x_taprio.c
new file mode 100644
index 000000000..3f5b21206
--- /dev/null
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_taprio.c
@@ -0,0 +1,528 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "lan966x_main.h"
+
+#define LAN966X_TAPRIO_TIMEOUT_MS		1000
+#define LAN966X_TAPRIO_ENTRIES_PER_PORT		2
+
+/* Minimum supported cycle time in nanoseconds */
+#define LAN966X_TAPRIO_MIN_CYCLE_TIME_NS	NSEC_PER_USEC
+
+/* Maximum supported cycle time in nanoseconds */
+#define LAN966X_TAPRIO_MAX_CYCLE_TIME_NS	(NSEC_PER_SEC - 1)
+
+/* Total number of TAS GCL entries */
+#define LAN966X_TAPRIO_NUM_GCL			256
+
+/* TAPRIO link speeds for calculation of guard band */
+enum lan966x_taprio_link_speed {
+	LAN966X_TAPRIO_SPEED_NO_GB,
+	LAN966X_TAPRIO_SPEED_10,
+	LAN966X_TAPRIO_SPEED_100,
+	LAN966X_TAPRIO_SPEED_1000,
+	LAN966X_TAPRIO_SPEED_2500,
+};
+
+/* TAPRIO list states */
+enum lan966x_taprio_state {
+	LAN966X_TAPRIO_STATE_ADMIN,
+	LAN966X_TAPRIO_STATE_ADVANCING,
+	LAN966X_TAPRIO_STATE_PENDING,
+	LAN966X_TAPRIO_STATE_OPERATING,
+	LAN966X_TAPRIO_STATE_TERMINATING,
+	LAN966X_TAPRIO_STATE_MAX,
+};
+
+/* TAPRIO GCL command */
+enum lan966x_taprio_gcl_cmd {
+	LAN966X_TAPRIO_GCL_CMD_SET_GATE_STATES = 0,
+};
+
+static u32 lan966x_taprio_list_index(struct lan966x_port *port, u8 entry)
+{
+	return port->chip_port * LAN966X_TAPRIO_ENTRIES_PER_PORT + entry;
+}
+
+static u32 lan966x_taprio_list_state_get(struct lan966x_port *port)
+{
+	struct lan966x *lan966x = port->lan966x;
+	u32 val;
+
+	val = lan_rd(lan966x, QSYS_TAS_LST);
+	return QSYS_TAS_LST_LIST_STATE_GET(val);
+}
+
+static u32 lan966x_taprio_list_index_state_get(struct lan966x_port *port,
+					       u32 list)
+{
+	struct lan966x *lan966x = port->lan966x;
+
+	lan_rmw(QSYS_TAS_CFG_CTRL_LIST_NUM_SET(list),
+		QSYS_TAS_CFG_CTRL_LIST_NUM,
+		lan966x, QSYS_TAS_CFG_CTRL);
+
+	return lan966x_taprio_list_state_get(port);
+}
+
+static void lan966x_taprio_list_state_set(struct lan966x_port *port,
+					  u32 state)
+{
+	struct lan966x *lan966x = port->lan966x;
+
+	lan_rmw(QSYS_TAS_LST_LIST_STATE_SET(state),
+		QSYS_TAS_LST_LIST_STATE,
+		lan966x, QSYS_TAS_LST);
+}
+
+static int lan966x_taprio_list_shutdown(struct lan966x_port *port,
+					u32 list)
+{
+	struct lan966x *lan966x = port->lan966x;
+	bool pending, operating;
+	unsigned long end;
+	u32 state;
+
+	end = jiffies +  msecs_to_jiffies(LAN966X_TAPRIO_TIMEOUT_MS);
+	/* It is required to try multiple times to set the state of list,
+	 * because the HW can overwrite this.
+	 */
+	do {
+		state = lan966x_taprio_list_state_get(port);
+
+		pending = false;
+		operating = false;
+
+		if (state == LAN966X_TAPRIO_STATE_ADVANCING ||
+		    state == LAN966X_TAPRIO_STATE_PENDING) {
+			lan966x_taprio_list_state_set(port,
+						      LAN966X_TAPRIO_STATE_ADMIN);
+			pending = true;
+		}
+
+		if (state == LAN966X_TAPRIO_STATE_OPERATING) {
+			lan966x_taprio_list_state_set(port,
+						      LAN966X_TAPRIO_STATE_TERMINATING);
+			operating = true;
+		}
+
+		/* If the entry was in pending and now gets in admin, then there
+		 * is nothing else to do, so just bail out
+		 */
+		state = lan966x_taprio_list_state_get(port);
+		if (pending &&
+		    state == LAN966X_TAPRIO_STATE_ADMIN)
+			return 0;
+
+		/* If the list was in operating and now is in terminating or
+		 * admin, then is OK to exit but it needs to wait until the list
+		 * will get in admin. It is not required to set the state
+		 * again.
+		 */
+		if (operating &&
+		    (state == LAN966X_TAPRIO_STATE_TERMINATING ||
+		     state == LAN966X_TAPRIO_STATE_ADMIN))
+			break;
+
+	} while (!time_after(jiffies, end));
+
+	end = jiffies + msecs_to_jiffies(LAN966X_TAPRIO_TIMEOUT_MS);
+	do {
+		state = lan966x_taprio_list_state_get(port);
+		if (state == LAN966X_TAPRIO_STATE_ADMIN)
+			break;
+
+	} while (!time_after(jiffies, end));
+
+	/* If the list was in operating mode, it could be stopped while some
+	 * queues where closed, so make sure to restore "all-queues-open"
+	 */
+	if (operating) {
+		lan_wr(QSYS_TAS_GS_CTRL_HSCH_POS_SET(port->chip_port),
+		       lan966x, QSYS_TAS_GS_CTRL);
+
+		lan_wr(QSYS_TAS_GATE_STATE_TAS_GATE_STATE_SET(0xff),
+		       lan966x, QSYS_TAS_GATE_STATE);
+	}
+
+	return 0;
+}
+
+static int lan966x_taprio_shutdown(struct lan966x_port *port)
+{
+	u32 i, list, state;
+	int err;
+
+	for (i = 0; i < LAN966X_TAPRIO_ENTRIES_PER_PORT; ++i) {
+		list = lan966x_taprio_list_index(port, i);
+		state = lan966x_taprio_list_index_state_get(port, list);
+		if (state == LAN966X_TAPRIO_STATE_ADMIN)
+			continue;
+
+		err = lan966x_taprio_list_shutdown(port, list);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+/* Find a suitable list for a new schedule. First priority is a list in state
+ * pending. Second priority is a list in state admin.
+ */
+static int lan966x_taprio_find_list(struct lan966x_port *port,
+				    struct tc_taprio_qopt_offload *qopt,
+				    int *new_list, int *obs_list)
+{
+	int state[LAN966X_TAPRIO_ENTRIES_PER_PORT];
+	int list[LAN966X_TAPRIO_ENTRIES_PER_PORT];
+	int err, oper = -1;
+	u32 i;
+
+	*new_list = -1;
+	*obs_list = -1;
+
+	/* If there is already an entry in operating mode, return this list in
+	 * obs_list, such that when the new list will get activated the
+	 * operating list will be stopped. In this way is possible to have
+	 * smooth transitions between the lists
+	 */
+	for (i = 0; i < LAN966X_TAPRIO_ENTRIES_PER_PORT; ++i) {
+		list[i] = lan966x_taprio_list_index(port, i);
+		state[i] = lan966x_taprio_list_index_state_get(port, list[i]);
+		if (state[i] == LAN966X_TAPRIO_STATE_OPERATING)
+			oper = list[i];
+	}
+
+	for (i = 0; i < LAN966X_TAPRIO_ENTRIES_PER_PORT; ++i) {
+		if (state[i] == LAN966X_TAPRIO_STATE_PENDING) {
+			err = lan966x_taprio_shutdown(port);
+			if (err)
+				return err;
+
+			*new_list = list[i];
+			*obs_list = (oper == -1) ? *new_list : oper;
+			return 0;
+		}
+	}
+
+	for (i = 0; i < LAN966X_TAPRIO_ENTRIES_PER_PORT; ++i) {
+		if (state[i] == LAN966X_TAPRIO_STATE_ADMIN) {
+			*new_list = list[i];
+			*obs_list = (oper == -1) ? *new_list : oper;
+			return 0;
+		}
+	}
+
+	return -ENOSPC;
+}
+
+static int lan966x_taprio_check(struct tc_taprio_qopt_offload *qopt)
+{
+	u64 total_time = 0;
+	u32 i;
+
+	/* This is not supported by th HW */
+	if (qopt->cycle_time_extension)
+		return -EOPNOTSUPP;
+
+	/* There is a limited number of gcl entries that can be used, they are
+	 * shared by all ports
+	 */
+	if (qopt->num_entries > LAN966X_TAPRIO_NUM_GCL)
+		return -EINVAL;
+
+	/* Don't allow cycle times bigger than 1 sec or smaller than 1 usec */
+	if (qopt->cycle_time < LAN966X_TAPRIO_MIN_CYCLE_TIME_NS ||
+	    qopt->cycle_time > LAN966X_TAPRIO_MAX_CYCLE_TIME_NS)
+		return -EINVAL;
+
+	for (i = 0; i < qopt->num_entries; ++i) {
+		struct tc_taprio_sched_entry *entry = &qopt->entries[i];
+
+		/* Don't allow intervals bigger than 1 sec or smaller than 1
+		 * usec
+		 */
+		if (entry->interval < LAN966X_TAPRIO_MIN_CYCLE_TIME_NS ||
+		    entry->interval > LAN966X_TAPRIO_MAX_CYCLE_TIME_NS)
+			return -EINVAL;
+
+		if (qopt->entries[i].command != TC_TAPRIO_CMD_SET_GATES)
+			return -EINVAL;
+
+		total_time += qopt->entries[i].interval;
+	}
+
+	/* Don't allow the total time of intervals be bigger than 1 sec */
+	if (total_time > LAN966X_TAPRIO_MAX_CYCLE_TIME_NS)
+		return -EINVAL;
+
+	/* The HW expects that the cycle time to be at least as big as sum of
+	 * each interval of gcl
+	 */
+	if (qopt->cycle_time < total_time)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int lan966x_taprio_gcl_free_get(struct lan966x_port *port,
+				       unsigned long *free_list)
+{
+	struct lan966x *lan966x = port->lan966x;
+	u32 num_free, state, list;
+	u32 base, next, max_list;
+
+	/* By default everything is free */
+	bitmap_fill(free_list, LAN966X_TAPRIO_NUM_GCL);
+	num_free = LAN966X_TAPRIO_NUM_GCL;
+
+	/* Iterate over all gcl entries and find out which are free. And mark
+	 * those that are not free.
+	 */
+	max_list = lan966x->num_phys_ports * LAN966X_TAPRIO_ENTRIES_PER_PORT;
+	for (list = 0; list < max_list; ++list) {
+		state = lan966x_taprio_list_index_state_get(port, list);
+		if (state == LAN966X_TAPRIO_STATE_ADMIN)
+			continue;
+
+		base = lan_rd(lan966x, QSYS_TAS_LIST_CFG);
+		base = QSYS_TAS_LIST_CFG_LIST_BASE_ADDR_GET(base);
+		next = base;
+
+		do {
+			clear_bit(next, free_list);
+			num_free--;
+
+			lan_rmw(QSYS_TAS_CFG_CTRL_GCL_ENTRY_NUM_SET(next),
+				QSYS_TAS_CFG_CTRL_GCL_ENTRY_NUM,
+				lan966x, QSYS_TAS_CFG_CTRL);
+
+			next = lan_rd(lan966x, QSYS_TAS_GCL_CT_CFG2);
+			next = QSYS_TAS_GCL_CT_CFG2_NEXT_GCL_GET(next);
+		} while (base != next);
+	}
+
+	return num_free;
+}
+
+static void lan966x_taprio_gcl_setup_entry(struct lan966x_port *port,
+					   struct tc_taprio_sched_entry *entry,
+					   u32 next_entry)
+{
+	struct lan966x *lan966x = port->lan966x;
+
+	/* Setup a single gcl entry */
+	lan_wr(QSYS_TAS_GCL_CT_CFG_GATE_STATE_SET(entry->gate_mask) |
+	       QSYS_TAS_GCL_CT_CFG_HSCH_POS_SET(port->chip_port) |
+	       QSYS_TAS_GCL_CT_CFG_OP_TYPE_SET(LAN966X_TAPRIO_GCL_CMD_SET_GATE_STATES),
+	       lan966x, QSYS_TAS_GCL_CT_CFG);
+
+	lan_wr(QSYS_TAS_GCL_CT_CFG2_PORT_PROFILE_SET(port->chip_port) |
+	       QSYS_TAS_GCL_CT_CFG2_NEXT_GCL_SET(next_entry),
+	       lan966x, QSYS_TAS_GCL_CT_CFG2);
+
+	lan_wr(entry->interval, lan966x, QSYS_TAS_GCL_TM_CFG);
+}
+
+static int lan966x_taprio_gcl_setup(struct lan966x_port *port,
+				    struct tc_taprio_qopt_offload *qopt,
+				    int list)
+{
+	DECLARE_BITMAP(free_list, LAN966X_TAPRIO_NUM_GCL);
+	struct lan966x *lan966x = port->lan966x;
+	u32 i, base, next;
+
+	if (lan966x_taprio_gcl_free_get(port, free_list) < qopt->num_entries)
+		return -ENOSPC;
+
+	/* Select list */
+	lan_rmw(QSYS_TAS_CFG_CTRL_LIST_NUM_SET(list),
+		QSYS_TAS_CFG_CTRL_LIST_NUM,
+		lan966x, QSYS_TAS_CFG_CTRL);
+
+	/* Setup the address of the first gcl entry */
+	base = find_first_bit(free_list, LAN966X_TAPRIO_NUM_GCL);
+	lan_rmw(QSYS_TAS_LIST_CFG_LIST_BASE_ADDR_SET(base),
+		QSYS_TAS_LIST_CFG_LIST_BASE_ADDR,
+		lan966x, QSYS_TAS_LIST_CFG);
+
+	/* Iterate over entries and add them to the gcl list */
+	next = base;
+	for (i = 0; i < qopt->num_entries; ++i) {
+		lan_rmw(QSYS_TAS_CFG_CTRL_GCL_ENTRY_NUM_SET(next),
+			QSYS_TAS_CFG_CTRL_GCL_ENTRY_NUM,
+			lan966x, QSYS_TAS_CFG_CTRL);
+
+		/* If the entry is last, point back to the start of the list */
+		if (i == qopt->num_entries - 1)
+			next = base;
+		else
+			next = find_next_bit(free_list, LAN966X_TAPRIO_NUM_GCL,
+					     next + 1);
+
+		lan966x_taprio_gcl_setup_entry(port, &qopt->entries[i], next);
+	}
+
+	return 0;
+}
+
+/* Calculate new base_time based on cycle_time. The HW recommends to have the
+ * new base time at least 2 * cycle type + current time
+ */
+static void lan966x_taprio_new_base_time(struct lan966x *lan966x,
+					 const u32 cycle_time,
+					 const ktime_t org_base_time,
+					 ktime_t *new_base_time)
+{
+	ktime_t current_time, threshold_time;
+	struct timespec64 ts;
+
+	/* Get the current time and calculate the threshold_time */
+	lan966x_ptp_gettime64(&lan966x->phc[LAN966X_PHC_PORT].info, &ts);
+	current_time = timespec64_to_ktime(ts);
+	threshold_time = current_time + (2 * cycle_time);
+
+	/* If the org_base_time is in enough in future just use it */
+	if (org_base_time >= threshold_time) {
+		*new_base_time = org_base_time;
+		return;
+	}
+
+	/* If the org_base_time is smaller than current_time, calculate the new
+	 * base time as following.
+	 */
+	if (org_base_time <= current_time) {
+		u64 tmp = current_time - org_base_time;
+		u32 rem = 0;
+
+		if (tmp > cycle_time)
+			div_u64_rem(tmp, cycle_time, &rem);
+		rem = cycle_time - rem;
+		*new_base_time = threshold_time + rem;
+		return;
+	}
+
+	/* The only left place for org_base_time is between current_time and
+	 * threshold_time. In this case the new_base_time is calculated like
+	 * org_base_time + 2 * cycletime
+	 */
+	*new_base_time = org_base_time + 2 * cycle_time;
+}
+
+int lan966x_taprio_speed_set(struct lan966x_port *port, int speed)
+{
+	struct lan966x *lan966x = port->lan966x;
+	u8 taprio_speed;
+
+	switch (speed) {
+	case SPEED_10:
+		taprio_speed = LAN966X_TAPRIO_SPEED_10;
+		break;
+	case SPEED_100:
+		taprio_speed = LAN966X_TAPRIO_SPEED_100;
+		break;
+	case SPEED_1000:
+		taprio_speed = LAN966X_TAPRIO_SPEED_1000;
+		break;
+	case SPEED_2500:
+		taprio_speed = LAN966X_TAPRIO_SPEED_2500;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	lan_rmw(QSYS_TAS_PROFILE_CFG_LINK_SPEED_SET(taprio_speed),
+		QSYS_TAS_PROFILE_CFG_LINK_SPEED,
+		lan966x, QSYS_TAS_PROFILE_CFG(port->chip_port));
+
+	return 0;
+}
+
+int lan966x_taprio_add(struct lan966x_port *port,
+		       struct tc_taprio_qopt_offload *qopt)
+{
+	struct lan966x *lan966x = port->lan966x;
+	int err, new_list, obs_list;
+	struct timespec64 ts;
+	ktime_t base_time;
+
+	err = lan966x_taprio_check(qopt);
+	if (err)
+		return err;
+
+	err = lan966x_taprio_find_list(port, qopt, &new_list, &obs_list);
+	if (err)
+		return err;
+
+	err = lan966x_taprio_gcl_setup(port, qopt, new_list);
+	if (err)
+		return err;
+
+	lan966x_taprio_new_base_time(lan966x, qopt->cycle_time,
+				     qopt->base_time, &base_time);
+
+	ts = ktime_to_timespec64(base_time);
+	lan_wr(QSYS_TAS_BT_NSEC_NSEC_SET(ts.tv_nsec),
+	       lan966x, QSYS_TAS_BT_NSEC);
+
+	lan_wr(lower_32_bits(ts.tv_sec),
+	       lan966x, QSYS_TAS_BT_SEC_LSB);
+
+	lan_wr(QSYS_TAS_BT_SEC_MSB_SEC_MSB_SET(upper_32_bits(ts.tv_sec)),
+	       lan966x, QSYS_TAS_BT_SEC_MSB);
+
+	lan_wr(qopt->cycle_time, lan966x, QSYS_TAS_CT_CFG);
+
+	lan_rmw(QSYS_TAS_STARTUP_CFG_OBSOLETE_IDX_SET(obs_list),
+		QSYS_TAS_STARTUP_CFG_OBSOLETE_IDX,
+		lan966x, QSYS_TAS_STARTUP_CFG);
+
+	/* Start list processing */
+	lan_rmw(QSYS_TAS_LST_LIST_STATE_SET(LAN966X_TAPRIO_STATE_ADVANCING),
+		QSYS_TAS_LST_LIST_STATE,
+		lan966x, QSYS_TAS_LST);
+
+	return err;
+}
+
+int lan966x_taprio_del(struct lan966x_port *port)
+{
+	return lan966x_taprio_shutdown(port);
+}
+
+void lan966x_taprio_init(struct lan966x *lan966x)
+{
+	int num_taprio_lists;
+	int p;
+
+	lan_wr(QSYS_TAS_STM_CFG_REVISIT_DLY_SET((256 * 1000) /
+						lan966x_ptp_get_period_ps()),
+	       lan966x, QSYS_TAS_STM_CFG);
+
+	num_taprio_lists = lan966x->num_phys_ports *
+			   LAN966X_TAPRIO_ENTRIES_PER_PORT;
+
+	/* For now we always use guard band on all queues */
+	lan_rmw(QSYS_TAS_CFG_CTRL_LIST_NUM_MAX_SET(num_taprio_lists) |
+		QSYS_TAS_CFG_CTRL_ALWAYS_GB_SCH_Q_SET(1),
+		QSYS_TAS_CFG_CTRL_LIST_NUM_MAX |
+		QSYS_TAS_CFG_CTRL_ALWAYS_GB_SCH_Q,
+		lan966x, QSYS_TAS_CFG_CTRL);
+
+	for (p = 0; p < lan966x->num_phys_ports; p++)
+		lan_rmw(QSYS_TAS_PROFILE_CFG_PORT_NUM_SET(p),
+			QSYS_TAS_PROFILE_CFG_PORT_NUM,
+			lan966x, QSYS_TAS_PROFILE_CFG(p));
+}
+
+void lan966x_taprio_deinit(struct lan966x *lan966x)
+{
+	int p;
+
+	for (p = 0; p < lan966x->num_phys_ports; ++p) {
+		if (!lan966x->ports[p])
+			continue;
+
+		lan966x_taprio_del(lan966x->ports[p]);
+	}
+}