Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:
 "Another merge window, another pull full of stuff:

   1) Support alternative names for network devices, from Jiri Pirko.

   2) Introduce per-netns netdev notifiers, also from Jiri Pirko.

   3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara
      Larsen.

   4) Allow compiling out the TLS TOE code, from Jakub Kicinski.

   5) Add several new tracepoints to the kTLS code, also from Jakub.

   6) Support set channels ethtool callback in ena driver, from Sameeh
      Jubran.

   7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED,
      SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long.

   8) Add XDP support to mvneta driver, from Lorenzo Bianconi.

   9) Lots of netfilter hw offload fixes, cleanups and enhancements,
      from Pablo Neira Ayuso.

  10) PTP support for aquantia chips, from Egor Pomozov.

  11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From
      Josh Hunt.

  12) Add smart nagle to tipc, from Jon Maloy.

  13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat
      Duvvuru.

  14) Add a flow mask cache to OVS, from Tonghao Zhang.

  15) Add XDP support to ice driver, from Maciej Fijalkowski.

  16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak.

  17) Support UDP GSO offload in atlantic driver, from Igor Russkikh.

  18) Support it in stmmac driver too, from Jose Abreu.

  19) Support TIPC encryption and auth, from Tuong Lien.

  20) Introduce BPF trampolines, from Alexei Starovoitov.

  21) Make page_pool API more numa friendly, from Saeed Mahameed.

  22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni.

  23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits)
  libbpf: Fix usage of u32 in userspace code
  mm: Implement no-MMU variant of vmalloc_user_node_flags
  slip: Fix use-after-free Read in slip_open
  net: dsa: sja1105: fix sja1105_parse_rgmii_delays()
  macvlan: schedule bc_work even if error
  enetc: add support Credit Based Shaper(CBS) for hardware offload
  net: phy: add helpers phy_(un)lock_mdio_bus
  mdio_bus: don't use managed reset-controller
  ax88179_178a: add ethtool_op_get_ts_info()
  mlxsw: spectrum_router: Fix use of uninitialized adjacency index
  mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels
  bpf: Simplify __bpf_arch_text_poke poke type handling
  bpf: Introduce BPF_TRACE_x helper for the tracing tests
  bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT
  bpf, testing: Add various tail call test cases
  bpf, x86: Emit patchable direct jump as tail call
  bpf: Constant map key tracking for prog array pokes
  bpf: Add poke dependency tracking for prog array maps
  bpf: Add initial poke descriptor table for jit images
  bpf: Move owner type, jited info into array auxiliary data
  ...

1 files changed, 1263 insertions, 4 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 2fde9653a608..eae707ddf8e8 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -411,6 +411,27 @@ ice_aq_add_sched_elems(struct ice_hw *hw, u16 grps_req,
 }
 
 /**
+ * ice_aq_cfg_sched_elems - configures scheduler elements
+ * @hw: pointer to the HW struct
+ * @elems_req: number of elements to configure
+ * @buf: pointer to buffer
+ * @buf_size: buffer size in bytes
+ * @elems_cfgd: returns total number of elements configured
+ * @cd: pointer to command details structure or NULL
+ *
+ * Configure scheduling elements (0x0403)
+ */
+static enum ice_status
+ice_aq_cfg_sched_elems(struct ice_hw *hw, u16 elems_req,
+		       struct ice_aqc_conf_elem *buf, u16 buf_size,
+		       u16 *elems_cfgd, struct ice_sq_cd *cd)
+{
+	return ice_aqc_send_sched_elem_cmd(hw, ice_aqc_opc_cfg_sched_elems,
+					   elems_req, (void *)buf, buf_size,
+					   elems_cfgd, cd);
+}
+
+/**
  * ice_aq_suspend_sched_elems - suspend scheduler elements
  * @hw: pointer to the HW struct
  * @elems_req: number of elements to suspend
@@ -557,6 +578,149 @@ ice_alloc_lan_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs)
 }
 
 /**
+ * ice_aq_rl_profile - performs a rate limiting task
+ * @hw: pointer to the HW struct
+ * @opcode:opcode for add, query, or remove profile(s)
+ * @num_profiles: the number of profiles
+ * @buf: pointer to buffer
+ * @buf_size: buffer size in bytes
+ * @num_processed: number of processed add or remove profile(s) to return
+ * @cd: pointer to command details structure
+ *
+ * RL profile function to add, query, or remove profile(s)
+ */
+static enum ice_status
+ice_aq_rl_profile(struct ice_hw *hw, enum ice_adminq_opc opcode,
+		  u16 num_profiles, struct ice_aqc_rl_profile_generic_elem *buf,
+		  u16 buf_size, u16 *num_processed, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_rl_profile *cmd;
+	struct ice_aq_desc desc;
+	enum ice_status status;
+
+	cmd = &desc.params.rl_profile;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, opcode);
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+	cmd->num_profiles = cpu_to_le16(num_profiles);
+	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
+	if (!status && num_processed)
+		*num_processed = le16_to_cpu(cmd->num_processed);
+	return status;
+}
+
+/**
+ * ice_aq_add_rl_profile - adds rate limiting profile(s)
+ * @hw: pointer to the HW struct
+ * @num_profiles: the number of profile(s) to be add
+ * @buf: pointer to buffer
+ * @buf_size: buffer size in bytes
+ * @num_profiles_added: total number of profiles added to return
+ * @cd: pointer to command details structure
+ *
+ * Add RL profile (0x0410)
+ */
+static enum ice_status
+ice_aq_add_rl_profile(struct ice_hw *hw, u16 num_profiles,
+		      struct ice_aqc_rl_profile_generic_elem *buf,
+		      u16 buf_size, u16 *num_profiles_added,
+		      struct ice_sq_cd *cd)
+{
+	return ice_aq_rl_profile(hw, ice_aqc_opc_add_rl_profiles,
+				 num_profiles, buf,
+				 buf_size, num_profiles_added, cd);
+}
+
+/**
+ * ice_aq_remove_rl_profile - removes RL profile(s)
+ * @hw: pointer to the HW struct
+ * @num_profiles: the number of profile(s) to remove
+ * @buf: pointer to buffer
+ * @buf_size: buffer size in bytes
+ * @num_profiles_removed: total number of profiles removed to return
+ * @cd: pointer to command details structure or NULL
+ *
+ * Remove RL profile (0x0415)
+ */
+static enum ice_status
+ice_aq_remove_rl_profile(struct ice_hw *hw, u16 num_profiles,
+			 struct ice_aqc_rl_profile_generic_elem *buf,
+			 u16 buf_size, u16 *num_profiles_removed,
+			 struct ice_sq_cd *cd)
+{
+	return ice_aq_rl_profile(hw, ice_aqc_opc_remove_rl_profiles,
+				 num_profiles, buf,
+				 buf_size, num_profiles_removed, cd);
+}
+
+/**
+ * ice_sched_del_rl_profile - remove RL profile
+ * @hw: pointer to the HW struct
+ * @rl_info: rate limit profile information
+ *
+ * If the profile ID is not referenced anymore, it removes profile ID with
+ * its associated parameters from HW DB,and locally. The caller needs to
+ * hold scheduler lock.
+ */
+static enum ice_status
+ice_sched_del_rl_profile(struct ice_hw *hw,
+			 struct ice_aqc_rl_profile_info *rl_info)
+{
+	struct ice_aqc_rl_profile_generic_elem *buf;
+	u16 num_profiles_removed;
+	enum ice_status status;
+	u16 num_profiles = 1;
+
+	if (rl_info->prof_id_ref != 0)
+		return ICE_ERR_IN_USE;
+
+	/* Safe to remove profile ID */
+	buf = (struct ice_aqc_rl_profile_generic_elem *)
+		&rl_info->profile;
+	status = ice_aq_remove_rl_profile(hw, num_profiles, buf, sizeof(*buf),
+					  &num_profiles_removed, NULL);
+	if (status || num_profiles_removed != num_profiles)
+		return ICE_ERR_CFG;
+
+	/* Delete stale entry now */
+	list_del(&rl_info->list_entry);
+	devm_kfree(ice_hw_to_dev(hw), rl_info);
+	return status;
+}
+
+/**
+ * ice_sched_clear_rl_prof - clears RL prof entries
+ * @pi: port information structure
+ *
+ * This function removes all RL profile from HW as well as from SW DB.
+ */
+static void ice_sched_clear_rl_prof(struct ice_port_info *pi)
+{
+	u16 ln;
+
+	for (ln = 0; ln < pi->hw->num_tx_sched_layers; ln++) {
+		struct ice_aqc_rl_profile_info *rl_prof_elem;
+		struct ice_aqc_rl_profile_info *rl_prof_tmp;
+
+		list_for_each_entry_safe(rl_prof_elem, rl_prof_tmp,
+					 &pi->rl_prof_list[ln], list_entry) {
+			struct ice_hw *hw = pi->hw;
+			enum ice_status status;
+
+			rl_prof_elem->prof_id_ref = 0;
+			status = ice_sched_del_rl_profile(hw, rl_prof_elem);
+			if (status) {
+				ice_debug(hw, ICE_DBG_SCHED,
+					  "Remove rl profile failed\n");
+				/* On error, free mem required */
+				list_del(&rl_prof_elem->list_entry);
+				devm_kfree(ice_hw_to_dev(hw), rl_prof_elem);
+			}
+		}
+	}
+}
+
+/**
  * ice_sched_clear_agg - clears the aggregator related information
  * @hw: pointer to the hardware structure
  *
@@ -592,6 +756,8 @@ static void ice_sched_clear_tx_topo(struct ice_port_info *pi)
 {
 	if (!pi)
 		return;
+	/* remove RL profiles related lists */
+	ice_sched_clear_rl_prof(pi);
 	if (pi->root) {
 		ice_free_sched_node(pi, pi->root);
 		pi->root = NULL;
@@ -632,8 +798,7 @@ void ice_sched_cleanup_all(struct ice_hw *hw)
 		hw->layer_info = NULL;
 	}
 
-	if (hw->port_info)
-		ice_sched_clear_port(hw->port_info);
+	ice_sched_clear_port(hw->port_info);
 
 	hw->num_tx_sched_layers = 0;
 	hw->num_tx_sched_phys_layers = 0;
@@ -1014,6 +1179,8 @@ enum ice_status ice_sched_init_port(struct ice_port_info *pi)
 	/* initialize the port for handling the scheduler tree */
 	pi->port_state = ICE_SCHED_PORT_STATE_READY;
 	mutex_init(&pi->sched_lock);
+	for (i = 0; i < ICE_AQC_TOPO_MAX_LEVEL_NUM; i++)
+		INIT_LIST_HEAD(&pi->rl_prof_list[i]);
 
 err_init_port:
 	if (status && pi->root) {
@@ -1062,8 +1229,8 @@ enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw)
 	 * and so on. This array will be populated from root (index 0) to
 	 * qgroup layer 7. Leaf node has no children.
 	 */
-	for (i = 0; i < hw->num_tx_sched_layers; i++) {
-		max_sibl = buf->layer_props[i].max_sibl_grp_sz;
+	for (i = 0; i < hw->num_tx_sched_layers - 1; i++) {
+		max_sibl = buf->layer_props[i + 1].max_sibl_grp_sz;
 		hw->max_children[i] = le16_to_cpu(max_sibl);
 	}
 
@@ -1670,3 +1837,1095 @@ enum ice_status ice_rm_vsi_lan_cfg(struct ice_port_info *pi, u16 vsi_handle)
 {
 	return ice_sched_rm_vsi_cfg(pi, vsi_handle, ICE_SCHED_NODE_OWNER_LAN);
 }
+
+/**
+ * ice_sched_rm_unused_rl_prof - remove unused RL profile
+ * @pi: port information structure
+ *
+ * This function removes unused rate limit profiles from the HW and
+ * SW DB. The caller needs to hold scheduler lock.
+ */
+static void ice_sched_rm_unused_rl_prof(struct ice_port_info *pi)
+{
+	u16 ln;
+
+	for (ln = 0; ln < pi->hw->num_tx_sched_layers; ln++) {
+		struct ice_aqc_rl_profile_info *rl_prof_elem;
+		struct ice_aqc_rl_profile_info *rl_prof_tmp;
+
+		list_for_each_entry_safe(rl_prof_elem, rl_prof_tmp,
+					 &pi->rl_prof_list[ln], list_entry) {
+			if (!ice_sched_del_rl_profile(pi->hw, rl_prof_elem))
+				ice_debug(pi->hw, ICE_DBG_SCHED,
+					  "Removed rl profile\n");
+		}
+	}
+}
+
+/**
+ * ice_sched_update_elem - update element
+ * @hw: pointer to the HW struct
+ * @node: pointer to node
+ * @info: node info to update
+ *
+ * It updates the HW DB, and local SW DB of node. It updates the scheduling
+ * parameters of node from argument info data buffer (Info->data buf) and
+ * returns success or error on config sched element failure. The caller
+ * needs to hold scheduler lock.
+ */
+static enum ice_status
+ice_sched_update_elem(struct ice_hw *hw, struct ice_sched_node *node,
+		      struct ice_aqc_txsched_elem_data *info)
+{
+	struct ice_aqc_conf_elem buf;
+	enum ice_status status;
+	u16 elem_cfgd = 0;
+	u16 num_elems = 1;
+
+	buf.generic[0] = *info;
+	/* Parent TEID is reserved field in this aq call */
+	buf.generic[0].parent_teid = 0;
+	/* Element type is reserved field in this aq call */
+	buf.generic[0].data.elem_type = 0;
+	/* Flags is reserved field in this aq call */
+	buf.generic[0].data.flags = 0;
+
+	/* Update HW DB */
+	/* Configure element node */
+	status = ice_aq_cfg_sched_elems(hw, num_elems, &buf, sizeof(buf),
+					&elem_cfgd, NULL);
+	if (status || elem_cfgd != num_elems) {
+		ice_debug(hw, ICE_DBG_SCHED, "Config sched elem error\n");
+		return ICE_ERR_CFG;
+	}
+
+	/* Config success case */
+	/* Now update local SW DB */
+	/* Only copy the data portion of info buffer */
+	node->info.data = info->data;
+	return status;
+}
+
+/**
+ * ice_sched_cfg_node_bw_alloc - configure node BW weight/alloc params
+ * @hw: pointer to the HW struct
+ * @node: sched node to configure
+ * @rl_type: rate limit type CIR, EIR, or shared
+ * @bw_alloc: BW weight/allocation
+ *
+ * This function configures node element's BW allocation.
+ */
+static enum ice_status
+ice_sched_cfg_node_bw_alloc(struct ice_hw *hw, struct ice_sched_node *node,
+			    enum ice_rl_type rl_type, u8 bw_alloc)
+{
+	struct ice_aqc_txsched_elem_data buf;
+	struct ice_aqc_txsched_elem *data;
+	enum ice_status status;
+
+	buf = node->info;
+	data = &buf.data;
+	if (rl_type == ICE_MIN_BW) {
+		data->valid_sections |= ICE_AQC_ELEM_VALID_CIR;
+		data->cir_bw.bw_alloc = cpu_to_le16(bw_alloc);
+	} else if (rl_type == ICE_MAX_BW) {
+		data->valid_sections |= ICE_AQC_ELEM_VALID_EIR;
+		data->eir_bw.bw_alloc = cpu_to_le16(bw_alloc);
+	} else {
+		return ICE_ERR_PARAM;
+	}
+
+	/* Configure element */
+	status = ice_sched_update_elem(hw, node, &buf);
+	return status;
+}
+
+/**
+ * ice_set_clear_cir_bw - set or clear CIR BW
+ * @bw_t_info: bandwidth type information structure
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ *
+ * Save or clear CIR bandwidth (BW) in the passed param bw_t_info.
+ */
+static void
+ice_set_clear_cir_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
+{
+	if (bw == ICE_SCHED_DFLT_BW) {
+		clear_bit(ICE_BW_TYPE_CIR, bw_t_info->bw_t_bitmap);
+		bw_t_info->cir_bw.bw = 0;
+	} else {
+		/* Save type of BW information */
+		set_bit(ICE_BW_TYPE_CIR, bw_t_info->bw_t_bitmap);
+		bw_t_info->cir_bw.bw = bw;
+	}
+}
+
+/**
+ * ice_set_clear_eir_bw - set or clear EIR BW
+ * @bw_t_info: bandwidth type information structure
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ *
+ * Save or clear EIR bandwidth (BW) in the passed param bw_t_info.
+ */
+static void
+ice_set_clear_eir_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
+{
+	if (bw == ICE_SCHED_DFLT_BW) {
+		clear_bit(ICE_BW_TYPE_EIR, bw_t_info->bw_t_bitmap);
+		bw_t_info->eir_bw.bw = 0;
+	} else {
+		/* EIR BW and Shared BW profiles are mutually exclusive and
+		 * hence only one of them may be set for any given element.
+		 * First clear earlier saved shared BW information.
+		 */
+		clear_bit(ICE_BW_TYPE_SHARED, bw_t_info->bw_t_bitmap);
+		bw_t_info->shared_bw = 0;
+		/* save EIR BW information */
+		set_bit(ICE_BW_TYPE_EIR, bw_t_info->bw_t_bitmap);
+		bw_t_info->eir_bw.bw = bw;
+	}
+}
+
+/**
+ * ice_set_clear_shared_bw - set or clear shared BW
+ * @bw_t_info: bandwidth type information structure
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ *
+ * Save or clear shared bandwidth (BW) in the passed param bw_t_info.
+ */
+static void
+ice_set_clear_shared_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
+{
+	if (bw == ICE_SCHED_DFLT_BW) {
+		clear_bit(ICE_BW_TYPE_SHARED, bw_t_info->bw_t_bitmap);
+		bw_t_info->shared_bw = 0;
+	} else {
+		/* EIR BW and Shared BW profiles are mutually exclusive and
+		 * hence only one of them may be set for any given element.
+		 * First clear earlier saved EIR BW information.
+		 */
+		clear_bit(ICE_BW_TYPE_EIR, bw_t_info->bw_t_bitmap);
+		bw_t_info->eir_bw.bw = 0;
+		/* save shared BW information */
+		set_bit(ICE_BW_TYPE_SHARED, bw_t_info->bw_t_bitmap);
+		bw_t_info->shared_bw = bw;
+	}
+}
+
+/**
+ * ice_sched_calc_wakeup - calculate RL profile wakeup parameter
+ * @bw: bandwidth in Kbps
+ *
+ * This function calculates the wakeup parameter of RL profile.
+ */
+static u16 ice_sched_calc_wakeup(s32 bw)
+{
+	s64 bytes_per_sec, wakeup_int, wakeup_a, wakeup_b, wakeup_f;
+	s32 wakeup_f_int;
+	u16 wakeup = 0;
+
+	/* Get the wakeup integer value */
+	bytes_per_sec = div64_long(((s64)bw * 1000), BITS_PER_BYTE);
+	wakeup_int = div64_long(ICE_RL_PROF_FREQUENCY, bytes_per_sec);
+	if (wakeup_int > 63) {
+		wakeup = (u16)((1 << 15) | wakeup_int);
+	} else {
+		/* Calculate fraction value up to 4 decimals
+		 * Convert Integer value to a constant multiplier
+		 */
+		wakeup_b = (s64)ICE_RL_PROF_MULTIPLIER * wakeup_int;
+		wakeup_a = div64_long((s64)ICE_RL_PROF_MULTIPLIER *
+					   ICE_RL_PROF_FREQUENCY,
+				      bytes_per_sec);
+
+		/* Get Fraction value */
+		wakeup_f = wakeup_a - wakeup_b;
+
+		/* Round up the Fractional value via Ceil(Fractional value) */
+		if (wakeup_f > div64_long(ICE_RL_PROF_MULTIPLIER, 2))
+			wakeup_f += 1;
+
+		wakeup_f_int = (s32)div64_long(wakeup_f * ICE_RL_PROF_FRACTION,
+					       ICE_RL_PROF_MULTIPLIER);
+		wakeup |= (u16)(wakeup_int << 9);
+		wakeup |= (u16)(0x1ff & wakeup_f_int);
+	}
+
+	return wakeup;
+}
+
+/**
+ * ice_sched_bw_to_rl_profile - convert BW to profile parameters
+ * @bw: bandwidth in Kbps
+ * @profile: profile parameters to return
+ *
+ * This function converts the BW to profile structure format.
+ */
+static enum ice_status
+ice_sched_bw_to_rl_profile(u32 bw, struct ice_aqc_rl_profile_elem *profile)
+{
+	enum ice_status status = ICE_ERR_PARAM;
+	s64 bytes_per_sec, ts_rate, mv_tmp;
+	bool found = false;
+	s32 encode = 0;
+	s64 mv = 0;
+	s32 i;
+
+	/* Bw settings range is from 0.5Mb/sec to 100Gb/sec */
+	if (bw < ICE_SCHED_MIN_BW || bw > ICE_SCHED_MAX_BW)
+		return status;
+
+	/* Bytes per second from Kbps */
+	bytes_per_sec = div64_long(((s64)bw * 1000), BITS_PER_BYTE);
+
+	/* encode is 6 bits but really useful are 5 bits */
+	for (i = 0; i < 64; i++) {
+		u64 pow_result = BIT_ULL(i);
+
+		ts_rate = div64_long((s64)ICE_RL_PROF_FREQUENCY,
+				     pow_result * ICE_RL_PROF_TS_MULTIPLIER);
+		if (ts_rate <= 0)
+			continue;
+
+		/* Multiplier value */
+		mv_tmp = div64_long(bytes_per_sec * ICE_RL_PROF_MULTIPLIER,
+				    ts_rate);
+
+		/* Round to the nearest ICE_RL_PROF_MULTIPLIER */
+		mv = round_up_64bit(mv_tmp, ICE_RL_PROF_MULTIPLIER);
+
+		/* First multiplier value greater than the given
+		 * accuracy bytes
+		 */
+		if (mv > ICE_RL_PROF_ACCURACY_BYTES) {
+			encode = i;
+			found = true;
+			break;
+		}
+	}
+	if (found) {
+		u16 wm;
+
+		wm = ice_sched_calc_wakeup(bw);
+		profile->rl_multiply = cpu_to_le16(mv);
+		profile->wake_up_calc = cpu_to_le16(wm);
+		profile->rl_encode = cpu_to_le16(encode);
+		status = 0;
+	} else {
+		status = ICE_ERR_DOES_NOT_EXIST;
+	}
+
+	return status;
+}
+
+/**
+ * ice_sched_add_rl_profile - add RL profile
+ * @pi: port information structure
+ * @rl_type: type of rate limit BW - min, max, or shared
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ * @layer_num: specifies in which layer to create profile
+ *
+ * This function first checks the existing list for corresponding BW
+ * parameter. If it exists, it returns the associated profile otherwise
+ * it creates a new rate limit profile for requested BW, and adds it to
+ * the HW DB and local list. It returns the new profile or null on error.
+ * The caller needs to hold the scheduler lock.
+ */
+static struct ice_aqc_rl_profile_info *
+ice_sched_add_rl_profile(struct ice_port_info *pi,
+			 enum ice_rl_type rl_type, u32 bw, u8 layer_num)
+{
+	struct ice_aqc_rl_profile_generic_elem *buf;
+	struct ice_aqc_rl_profile_info *rl_prof_elem;
+	u16 profiles_added = 0, num_profiles = 1;
+	enum ice_status status;
+	struct ice_hw *hw;
+	u8 profile_type;
+
+	if (layer_num >= ICE_AQC_TOPO_MAX_LEVEL_NUM)
+		return NULL;
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_CIR;
+		break;
+	case ICE_MAX_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_EIR;
+		break;
+	case ICE_SHARED_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_SRL;
+		break;
+	default:
+		return NULL;
+	}
+
+	if (!pi)
+		return NULL;
+	hw = pi->hw;
+	list_for_each_entry(rl_prof_elem, &pi->rl_prof_list[layer_num],
+			    list_entry)
+		if (rl_prof_elem->profile.flags == profile_type &&
+		    rl_prof_elem->bw == bw)
+			/* Return existing profile ID info */
+			return rl_prof_elem;
+
+	/* Create new profile ID */
+	rl_prof_elem = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rl_prof_elem),
+				    GFP_KERNEL);
+
+	if (!rl_prof_elem)
+		return NULL;
+
+	status = ice_sched_bw_to_rl_profile(bw, &rl_prof_elem->profile);
+	if (status)
+		goto exit_add_rl_prof;
+
+	rl_prof_elem->bw = bw;
+	/* layer_num is zero relative, and fw expects level from 1 to 9 */
+	rl_prof_elem->profile.level = layer_num + 1;
+	rl_prof_elem->profile.flags = profile_type;
+	rl_prof_elem->profile.max_burst_size = cpu_to_le16(hw->max_burst_size);
+
+	/* Create new entry in HW DB */
+	buf = (struct ice_aqc_rl_profile_generic_elem *)
+		&rl_prof_elem->profile;
+	status = ice_aq_add_rl_profile(hw, num_profiles, buf, sizeof(*buf),
+				       &profiles_added, NULL);
+	if (status || profiles_added != num_profiles)
+		goto exit_add_rl_prof;
+
+	/* Good entry - add in the list */
+	rl_prof_elem->prof_id_ref = 0;
+	list_add(&rl_prof_elem->list_entry, &pi->rl_prof_list[layer_num]);
+	return rl_prof_elem;
+
+exit_add_rl_prof:
+	devm_kfree(ice_hw_to_dev(hw), rl_prof_elem);
+	return NULL;
+}
+
+/**
+ * ice_sched_cfg_node_bw_lmt - configure node sched params
+ * @hw: pointer to the HW struct
+ * @node: sched node to configure
+ * @rl_type: rate limit type CIR, EIR, or shared
+ * @rl_prof_id: rate limit profile ID
+ *
+ * This function configures node element's BW limit.
+ */
+static enum ice_status
+ice_sched_cfg_node_bw_lmt(struct ice_hw *hw, struct ice_sched_node *node,
+			  enum ice_rl_type rl_type, u16 rl_prof_id)
+{
+	struct ice_aqc_txsched_elem_data buf;
+	struct ice_aqc_txsched_elem *data;
+
+	buf = node->info;
+	data = &buf.data;
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		data->valid_sections |= ICE_AQC_ELEM_VALID_CIR;
+		data->cir_bw.bw_profile_idx = cpu_to_le16(rl_prof_id);
+		break;
+	case ICE_MAX_BW:
+		/* EIR BW and Shared BW profiles are mutually exclusive and
+		 * hence only one of them may be set for any given element
+		 */
+		if (data->valid_sections & ICE_AQC_ELEM_VALID_SHARED)
+			return ICE_ERR_CFG;
+		data->valid_sections |= ICE_AQC_ELEM_VALID_EIR;
+		data->eir_bw.bw_profile_idx = cpu_to_le16(rl_prof_id);
+		break;
+	case ICE_SHARED_BW:
+		/* Check for removing shared BW */
+		if (rl_prof_id == ICE_SCHED_NO_SHARED_RL_PROF_ID) {
+			/* remove shared profile */
+			data->valid_sections &= ~ICE_AQC_ELEM_VALID_SHARED;
+			data->srl_id = 0; /* clear SRL field */
+
+			/* enable back EIR to default profile */
+			data->valid_sections |= ICE_AQC_ELEM_VALID_EIR;
+			data->eir_bw.bw_profile_idx =
+				cpu_to_le16(ICE_SCHED_DFLT_RL_PROF_ID);
+			break;
+		}
+		/* EIR BW and Shared BW profiles are mutually exclusive and
+		 * hence only one of them may be set for any given element
+		 */
+		if ((data->valid_sections & ICE_AQC_ELEM_VALID_EIR) &&
+		    (le16_to_cpu(data->eir_bw.bw_profile_idx) !=
+			    ICE_SCHED_DFLT_RL_PROF_ID))
+			return ICE_ERR_CFG;
+		/* EIR BW is set to default, disable it */
+		data->valid_sections &= ~ICE_AQC_ELEM_VALID_EIR;
+		/* Okay to enable shared BW now */
+		data->valid_sections |= ICE_AQC_ELEM_VALID_SHARED;
+		data->srl_id = cpu_to_le16(rl_prof_id);
+		break;
+	default:
+		/* Unknown rate limit type */
+		return ICE_ERR_PARAM;
+	}
+
+	/* Configure element */
+	return ice_sched_update_elem(hw, node, &buf);
+}
+
+/**
+ * ice_sched_get_node_rl_prof_id - get node's rate limit profile ID
+ * @node: sched node
+ * @rl_type: rate limit type
+ *
+ * If existing profile matches, it returns the corresponding rate
+ * limit profile ID, otherwise it returns an invalid ID as error.
+ */
+static u16
+ice_sched_get_node_rl_prof_id(struct ice_sched_node *node,
+			      enum ice_rl_type rl_type)
+{
+	u16 rl_prof_id = ICE_SCHED_INVAL_PROF_ID;
+	struct ice_aqc_txsched_elem *data;
+
+	data = &node->info.data;
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		if (data->valid_sections & ICE_AQC_ELEM_VALID_CIR)
+			rl_prof_id = le16_to_cpu(data->cir_bw.bw_profile_idx);
+		break;
+	case ICE_MAX_BW:
+		if (data->valid_sections & ICE_AQC_ELEM_VALID_EIR)
+			rl_prof_id = le16_to_cpu(data->eir_bw.bw_profile_idx);
+		break;
+	case ICE_SHARED_BW:
+		if (data->valid_sections & ICE_AQC_ELEM_VALID_SHARED)
+			rl_prof_id = le16_to_cpu(data->srl_id);
+		break;
+	default:
+		break;
+	}
+
+	return rl_prof_id;
+}
+
+/**
+ * ice_sched_get_rl_prof_layer - selects rate limit profile creation layer
+ * @pi: port information structure
+ * @rl_type: type of rate limit BW - min, max, or shared
+ * @layer_index: layer index
+ *
+ * This function returns requested profile creation layer.
+ */
+static u8
+ice_sched_get_rl_prof_layer(struct ice_port_info *pi, enum ice_rl_type rl_type,
+			    u8 layer_index)
+{
+	struct ice_hw *hw = pi->hw;
+
+	if (layer_index >= hw->num_tx_sched_layers)
+		return ICE_SCHED_INVAL_LAYER_NUM;
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		if (hw->layer_info[layer_index].max_cir_rl_profiles)
+			return layer_index;
+		break;
+	case ICE_MAX_BW:
+		if (hw->layer_info[layer_index].max_eir_rl_profiles)
+			return layer_index;
+		break;
+	case ICE_SHARED_BW:
+		/* if current layer doesn't support SRL profile creation
+		 * then try a layer up or down.
+		 */
+		if (hw->layer_info[layer_index].max_srl_profiles)
+			return layer_index;
+		else if (layer_index < hw->num_tx_sched_layers - 1 &&
+			 hw->layer_info[layer_index + 1].max_srl_profiles)
+			return layer_index + 1;
+		else if (layer_index > 0 &&
+			 hw->layer_info[layer_index - 1].max_srl_profiles)
+			return layer_index - 1;
+		break;
+	default:
+		break;
+	}
+	return ICE_SCHED_INVAL_LAYER_NUM;
+}
+
+/**
+ * ice_sched_get_srl_node - get shared rate limit node
+ * @node: tree node
+ * @srl_layer: shared rate limit layer
+ *
+ * This function returns SRL node to be used for shared rate limit purpose.
+ * The caller needs to hold scheduler lock.
+ */
+static struct ice_sched_node *
+ice_sched_get_srl_node(struct ice_sched_node *node, u8 srl_layer)
+{
+	if (srl_layer > node->tx_sched_layer)
+		return node->children[0];
+	else if (srl_layer < node->tx_sched_layer)
+		/* Node can't be created without a parent. It will always
+		 * have a valid parent except root node.
+		 */
+		return node->parent;
+	else
+		return node;
+}
+
+/**
+ * ice_sched_rm_rl_profile - remove RL profile ID
+ * @pi: port information structure
+ * @layer_num: layer number where profiles are saved
+ * @profile_type: profile type like EIR, CIR, or SRL
+ * @profile_id: profile ID to remove
+ *
+ * This function removes rate limit profile from layer 'layer_num' of type
+ * 'profile_type' and profile ID as 'profile_id'. The caller needs to hold
+ * scheduler lock.
+ */
+static enum ice_status
+ice_sched_rm_rl_profile(struct ice_port_info *pi, u8 layer_num, u8 profile_type,
+			u16 profile_id)
+{
+	struct ice_aqc_rl_profile_info *rl_prof_elem;
+	enum ice_status status = 0;
+
+	if (layer_num >= ICE_AQC_TOPO_MAX_LEVEL_NUM)
+		return ICE_ERR_PARAM;
+	/* Check the existing list for RL profile */
+	list_for_each_entry(rl_prof_elem, &pi->rl_prof_list[layer_num],
+			    list_entry)
+		if (rl_prof_elem->profile.flags == profile_type &&
+		    le16_to_cpu(rl_prof_elem->profile.profile_id) ==
+		    profile_id) {
+			if (rl_prof_elem->prof_id_ref)
+				rl_prof_elem->prof_id_ref--;
+
+			/* Remove old profile ID from database */
+			status = ice_sched_del_rl_profile(pi->hw, rl_prof_elem);
+			if (status && status != ICE_ERR_IN_USE)
+				ice_debug(pi->hw, ICE_DBG_SCHED,
+					  "Remove rl profile failed\n");
+			break;
+		}
+	if (status == ICE_ERR_IN_USE)
+		status = 0;
+	return status;
+}
+
+/**
+ * ice_sched_set_node_bw_dflt - set node's bandwidth limit to default
+ * @pi: port information structure
+ * @node: pointer to node structure
+ * @rl_type: rate limit type min, max, or shared
+ * @layer_num: layer number where RL profiles are saved
+ *
+ * This function configures node element's BW rate limit profile ID of
+ * type CIR, EIR, or SRL to default. This function needs to be called
+ * with the scheduler lock held.
+ */
+static enum ice_status
+ice_sched_set_node_bw_dflt(struct ice_port_info *pi,
+			   struct ice_sched_node *node,
+			   enum ice_rl_type rl_type, u8 layer_num)
+{
+	enum ice_status status;
+	struct ice_hw *hw;
+	u8 profile_type;
+	u16 rl_prof_id;
+	u16 old_id;
+
+	hw = pi->hw;
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_CIR;
+		rl_prof_id = ICE_SCHED_DFLT_RL_PROF_ID;
+		break;
+	case ICE_MAX_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_EIR;
+		rl_prof_id = ICE_SCHED_DFLT_RL_PROF_ID;
+		break;
+	case ICE_SHARED_BW:
+		profile_type = ICE_AQC_RL_PROFILE_TYPE_SRL;
+		/* No SRL is configured for default case */
+		rl_prof_id = ICE_SCHED_NO_SHARED_RL_PROF_ID;
+		break;
+	default:
+		return ICE_ERR_PARAM;
+	}
+	/* Save existing RL prof ID for later clean up */
+	old_id = ice_sched_get_node_rl_prof_id(node, rl_type);
+	/* Configure BW scheduling parameters */
+	status = ice_sched_cfg_node_bw_lmt(hw, node, rl_type, rl_prof_id);
+	if (status)
+		return status;
+
+	/* Remove stale RL profile ID */
+	if (old_id == ICE_SCHED_DFLT_RL_PROF_ID ||
+	    old_id == ICE_SCHED_INVAL_PROF_ID)
+		return 0;
+
+	return ice_sched_rm_rl_profile(pi, layer_num, profile_type, old_id);
+}
+
+/**
+ * ice_sched_set_eir_srl_excl - set EIR/SRL exclusiveness
+ * @pi: port information structure
+ * @node: pointer to node structure
+ * @layer_num: layer number where rate limit profiles are saved
+ * @rl_type: rate limit type min, max, or shared
+ * @bw: bandwidth value
+ *
+ * This function prepares node element's bandwidth to SRL or EIR exclusively.
+ * EIR BW and Shared BW profiles are mutually exclusive and hence only one of
+ * them may be set for any given element. This function needs to be called
+ * with the scheduler lock held.
+ */
+static enum ice_status
+ice_sched_set_eir_srl_excl(struct ice_port_info *pi,
+			   struct ice_sched_node *node,
+			   u8 layer_num, enum ice_rl_type rl_type, u32 bw)
+{
+	if (rl_type == ICE_SHARED_BW) {
+		/* SRL node passed in this case, it may be different node */
+		if (bw == ICE_SCHED_DFLT_BW)
+			/* SRL being removed, ice_sched_cfg_node_bw_lmt()
+			 * enables EIR to default. EIR is not set in this
+			 * case, so no additional action is required.
+			 */
+			return 0;
+
+		/* SRL being configured, set EIR to default here.
+		 * ice_sched_cfg_node_bw_lmt() disables EIR when it
+		 * configures SRL
+		 */
+		return ice_sched_set_node_bw_dflt(pi, node, ICE_MAX_BW,
+						  layer_num);
+	} else if (rl_type == ICE_MAX_BW &&
+		   node->info.data.valid_sections & ICE_AQC_ELEM_VALID_SHARED) {
+		/* Remove Shared profile. Set default shared BW call
+		 * removes shared profile for a node.
+		 */
+		return ice_sched_set_node_bw_dflt(pi, node,
+						  ICE_SHARED_BW,
+						  layer_num);
+	}
+	return 0;
+}
+
+/**
+ * ice_sched_set_node_bw - set node's bandwidth
+ * @pi: port information structure
+ * @node: tree node
+ * @rl_type: rate limit type min, max, or shared
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ * @layer_num: layer number
+ *
+ * This function adds new profile corresponding to requested BW, configures
+ * node's RL profile ID of type CIR, EIR, or SRL, and removes old profile
+ * ID from local database. The caller needs to hold scheduler lock.
+ */
+static enum ice_status
+ice_sched_set_node_bw(struct ice_port_info *pi, struct ice_sched_node *node,
+		      enum ice_rl_type rl_type, u32 bw, u8 layer_num)
+{
+	struct ice_aqc_rl_profile_info *rl_prof_info;
+	enum ice_status status = ICE_ERR_PARAM;
+	struct ice_hw *hw = pi->hw;
+	u16 old_id, rl_prof_id;
+
+	rl_prof_info = ice_sched_add_rl_profile(pi, rl_type, bw, layer_num);
+	if (!rl_prof_info)
+		return status;
+
+	rl_prof_id = le16_to_cpu(rl_prof_info->profile.profile_id);
+
+	/* Save existing RL prof ID for later clean up */
+	old_id = ice_sched_get_node_rl_prof_id(node, rl_type);
+	/* Configure BW scheduling parameters */
+	status = ice_sched_cfg_node_bw_lmt(hw, node, rl_type, rl_prof_id);
+	if (status)
+		return status;
+
+	/* New changes has been applied */
+	/* Increment the profile ID reference count */
+	rl_prof_info->prof_id_ref++;
+
+	/* Check for old ID removal */
+	if ((old_id == ICE_SCHED_DFLT_RL_PROF_ID && rl_type != ICE_SHARED_BW) ||
+	    old_id == ICE_SCHED_INVAL_PROF_ID || old_id == rl_prof_id)
+		return 0;
+
+	return ice_sched_rm_rl_profile(pi, layer_num,
+				       rl_prof_info->profile.flags,
+				       old_id);
+}
+
+/**
+ * ice_sched_set_node_bw_lmt - set node's BW limit
+ * @pi: port information structure
+ * @node: tree node
+ * @rl_type: rate limit type min, max, or shared
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ *
+ * It updates node's BW limit parameters like BW RL profile ID of type CIR,
+ * EIR, or SRL. The caller needs to hold scheduler lock.
+ */
+static enum ice_status
+ice_sched_set_node_bw_lmt(struct ice_port_info *pi, struct ice_sched_node *node,
+			  enum ice_rl_type rl_type, u32 bw)
+{
+	struct ice_sched_node *cfg_node = node;
+	enum ice_status status;
+
+	struct ice_hw *hw;
+	u8 layer_num;
+
+	if (!pi)
+		return ICE_ERR_PARAM;
+	hw = pi->hw;
+	/* Remove unused RL profile IDs from HW and SW DB */
+	ice_sched_rm_unused_rl_prof(pi);
+	layer_num = ice_sched_get_rl_prof_layer(pi, rl_type,
+						node->tx_sched_layer);
+	if (layer_num >= hw->num_tx_sched_layers)
+		return ICE_ERR_PARAM;
+
+	if (rl_type == ICE_SHARED_BW) {
+		/* SRL node may be different */
+		cfg_node = ice_sched_get_srl_node(node, layer_num);
+		if (!cfg_node)
+			return ICE_ERR_CFG;
+	}
+	/* EIR BW and Shared BW profiles are mutually exclusive and
+	 * hence only one of them may be set for any given element
+	 */
+	status = ice_sched_set_eir_srl_excl(pi, cfg_node, layer_num, rl_type,
+					    bw);
+	if (status)
+		return status;
+	if (bw == ICE_SCHED_DFLT_BW)
+		return ice_sched_set_node_bw_dflt(pi, cfg_node, rl_type,
+						  layer_num);
+	return ice_sched_set_node_bw(pi, cfg_node, rl_type, bw, layer_num);
+}
+
+/**
+ * ice_sched_set_node_bw_dflt_lmt - set node's BW limit to default
+ * @pi: port information structure
+ * @node: pointer to node structure
+ * @rl_type: rate limit type min, max, or shared
+ *
+ * This function configures node element's BW rate limit profile ID of
+ * type CIR, EIR, or SRL to default. This function needs to be called
+ * with the scheduler lock held.
+ */
+static enum ice_status
+ice_sched_set_node_bw_dflt_lmt(struct ice_port_info *pi,
+			       struct ice_sched_node *node,
+			       enum ice_rl_type rl_type)
+{
+	return ice_sched_set_node_bw_lmt(pi, node, rl_type,
+					 ICE_SCHED_DFLT_BW);
+}
+
+/**
+ * ice_sched_validate_srl_node - Check node for SRL applicability
+ * @node: sched node to configure
+ * @sel_layer: selected SRL layer
+ *
+ * This function checks if the SRL can be applied to a selected layer node on
+ * behalf of the requested node (first argument). This function needs to be
+ * called with scheduler lock held.
+ */
+static enum ice_status
+ice_sched_validate_srl_node(struct ice_sched_node *node, u8 sel_layer)
+{
+	/* SRL profiles are not available on all layers. Check if the
+	 * SRL profile can be applied to a node above or below the
+	 * requested node. SRL configuration is possible only if the
+	 * selected layer's node has single child.
+	 */
+	if (sel_layer == node->tx_sched_layer ||
+	    ((sel_layer == node->tx_sched_layer + 1) &&
+	    node->num_children == 1) ||
+	    ((sel_layer == node->tx_sched_layer - 1) &&
+	    (node->parent && node->parent->num_children == 1)))
+		return 0;
+
+	return ICE_ERR_CFG;
+}
+
+/**
+ * ice_sched_save_q_bw - save queue node's BW information
+ * @q_ctx: queue context structure
+ * @rl_type: rate limit type min, max, or shared
+ * @bw: bandwidth in Kbps - Kilo bits per sec
+ *
+ * Save BW information of queue type node for post replay use.
+ */
+static enum ice_status
+ice_sched_save_q_bw(struct ice_q_ctx *q_ctx, enum ice_rl_type rl_type, u32 bw)
+{
+	switch (rl_type) {
+	case ICE_MIN_BW:
+		ice_set_clear_cir_bw(&q_ctx->bw_t_info, bw);
+		break;
+	case ICE_MAX_BW:
+		ice_set_clear_eir_bw(&q_ctx->bw_t_info, bw);
+		break;
+	case ICE_SHARED_BW:
+		ice_set_clear_shared_bw(&q_ctx->bw_t_info, bw);
+		break;
+	default:
+		return ICE_ERR_PARAM;
+	}
+	return 0;
+}
+
+/**
+ * ice_sched_set_q_bw_lmt - sets queue BW limit
+ * @pi: port information structure
+ * @vsi_handle: sw VSI handle
+ * @tc: traffic class
+ * @q_handle: software queue handle
+ * @rl_type: min, max, or shared
+ * @bw: bandwidth in Kbps
+ *
+ * This function sets BW limit of queue scheduling node.
+ */
+static enum ice_status
+ice_sched_set_q_bw_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+		       u16 q_handle, enum ice_rl_type rl_type, u32 bw)
+{
+	enum ice_status status = ICE_ERR_PARAM;
+	struct ice_sched_node *node;
+	struct ice_q_ctx *q_ctx;
+
+	if (!ice_is_vsi_valid(pi->hw, vsi_handle))
+		return ICE_ERR_PARAM;
+	mutex_lock(&pi->sched_lock);
+	q_ctx = ice_get_lan_q_ctx(pi->hw, vsi_handle, tc, q_handle);
+	if (!q_ctx)
+		goto exit_q_bw_lmt;
+	node = ice_sched_find_node_by_teid(pi->root, q_ctx->q_teid);
+	if (!node) {
+		ice_debug(pi->hw, ICE_DBG_SCHED, "Wrong q_teid\n");
+		goto exit_q_bw_lmt;
+	}
+
+	/* Return error if it is not a leaf node */
+	if (node->info.data.elem_type != ICE_AQC_ELEM_TYPE_LEAF)
+		goto exit_q_bw_lmt;
+
+	/* SRL bandwidth layer selection */
+	if (rl_type == ICE_SHARED_BW) {
+		u8 sel_layer; /* selected layer */
+
+		sel_layer = ice_sched_get_rl_prof_layer(pi, rl_type,
+							node->tx_sched_layer);
+		if (sel_layer >= pi->hw->num_tx_sched_layers) {
+			status = ICE_ERR_PARAM;
+			goto exit_q_bw_lmt;
+		}
+		status = ice_sched_validate_srl_node(node, sel_layer);
+		if (status)
+			goto exit_q_bw_lmt;
+	}
+
+	if (bw == ICE_SCHED_DFLT_BW)
+		status = ice_sched_set_node_bw_dflt_lmt(pi, node, rl_type);
+	else
+		status = ice_sched_set_node_bw_lmt(pi, node, rl_type, bw);
+
+	if (!status)
+		status = ice_sched_save_q_bw(q_ctx, rl_type, bw);
+
+exit_q_bw_lmt:
+	mutex_unlock(&pi->sched_lock);
+	return status;
+}
+
+/**
+ * ice_cfg_q_bw_lmt - configure queue BW limit
+ * @pi: port information structure
+ * @vsi_handle: sw VSI handle
+ * @tc: traffic class
+ * @q_handle: software queue handle
+ * @rl_type: min, max, or shared
+ * @bw: bandwidth in Kbps
+ *
+ * This function configures BW limit of queue scheduling node.
+ */
+enum ice_status
+ice_cfg_q_bw_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+		 u16 q_handle, enum ice_rl_type rl_type, u32 bw)
+{
+	return ice_sched_set_q_bw_lmt(pi, vsi_handle, tc, q_handle, rl_type,
+				      bw);
+}
+
+/**
+ * ice_cfg_q_bw_dflt_lmt - configure queue BW default limit
+ * @pi: port information structure
+ * @vsi_handle: sw VSI handle
+ * @tc: traffic class
+ * @q_handle: software queue handle
+ * @rl_type: min, max, or shared
+ *
+ * This function configures BW default limit of queue scheduling node.
+ */
+enum ice_status
+ice_cfg_q_bw_dflt_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+		      u16 q_handle, enum ice_rl_type rl_type)
+{
+	return ice_sched_set_q_bw_lmt(pi, vsi_handle, tc, q_handle, rl_type,
+				      ICE_SCHED_DFLT_BW);
+}
+
+/**
+ * ice_cfg_rl_burst_size - Set burst size value
+ * @hw: pointer to the HW struct
+ * @bytes: burst size in bytes
+ *
+ * This function configures/set the burst size to requested new value. The new
+ * burst size value is used for future rate limit calls. It doesn't change the
+ * existing or previously created RL profiles.
+ */
+enum ice_status ice_cfg_rl_burst_size(struct ice_hw *hw, u32 bytes)
+{
+	u16 burst_size_to_prog;
+
+	if (bytes < ICE_MIN_BURST_SIZE_ALLOWED ||
+	    bytes > ICE_MAX_BURST_SIZE_ALLOWED)
+		return ICE_ERR_PARAM;
+	if (ice_round_to_num(bytes, 64) <=
+	    ICE_MAX_BURST_SIZE_64_BYTE_GRANULARITY) {
+		/* 64 byte granularity case */
+		/* Disable MSB granularity bit */
+		burst_size_to_prog = ICE_64_BYTE_GRANULARITY;
+		/* round number to nearest 64 byte granularity */
+		bytes = ice_round_to_num(bytes, 64);
+		/* The value is in 64 byte chunks */
+		burst_size_to_prog |= (u16)(bytes / 64);
+	} else {
+		/* k bytes granularity case */
+		/* Enable MSB granularity bit */
+		burst_size_to_prog = ICE_KBYTE_GRANULARITY;
+		/* round number to nearest 1024 granularity */
+		bytes = ice_round_to_num(bytes, 1024);
+		/* check rounding doesn't go beyond allowed */
+		if (bytes > ICE_MAX_BURST_SIZE_KBYTE_GRANULARITY)
+			bytes = ICE_MAX_BURST_SIZE_KBYTE_GRANULARITY;
+		/* The value is in k bytes */
+		burst_size_to_prog |= (u16)(bytes / 1024);
+	}
+	hw->max_burst_size = burst_size_to_prog;
+	return 0;
+}
+
+/**
+ * ice_sched_replay_node_prio - re-configure node priority
+ * @hw: pointer to the HW struct
+ * @node: sched node to configure
+ * @priority: priority value
+ *
+ * This function configures node element's priority value. It
+ * needs to be called with scheduler lock held.
+ */
+static enum ice_status
+ice_sched_replay_node_prio(struct ice_hw *hw, struct ice_sched_node *node,
+			   u8 priority)
+{
+	struct ice_aqc_txsched_elem_data buf;
+	struct ice_aqc_txsched_elem *data;
+	enum ice_status status;
+
+	buf = node->info;
+	data = &buf.data;
+	data->valid_sections |= ICE_AQC_ELEM_VALID_GENERIC;
+	data->generic = priority;
+
+	/* Configure element */
+	status = ice_sched_update_elem(hw, node, &buf);
+	return status;
+}
+
+/**
+ * ice_sched_replay_node_bw - replay node(s) BW
+ * @hw: pointer to the HW struct
+ * @node: sched node to configure
+ * @bw_t_info: BW type information
+ *
+ * This function restores node's BW from bw_t_info. The caller needs
+ * to hold the scheduler lock.
+ */
+static enum ice_status
+ice_sched_replay_node_bw(struct ice_hw *hw, struct ice_sched_node *node,
+			 struct ice_bw_type_info *bw_t_info)
+{
+	struct ice_port_info *pi = hw->port_info;
+	enum ice_status status = ICE_ERR_PARAM;
+	u16 bw_alloc;
+
+	if (!node)
+		return status;
+	if (bitmap_empty(bw_t_info->bw_t_bitmap, ICE_BW_TYPE_CNT))
+		return 0;
+	if (test_bit(ICE_BW_TYPE_PRIO, bw_t_info->bw_t_bitmap)) {
+		status = ice_sched_replay_node_prio(hw, node,
+						    bw_t_info->generic);
+		if (status)
+			return status;
+	}
+	if (test_bit(ICE_BW_TYPE_CIR, bw_t_info->bw_t_bitmap)) {
+		status = ice_sched_set_node_bw_lmt(pi, node, ICE_MIN_BW,
+						   bw_t_info->cir_bw.bw);
+		if (status)
+			return status;
+	}
+	if (test_bit(ICE_BW_TYPE_CIR_WT, bw_t_info->bw_t_bitmap)) {
+		bw_alloc = bw_t_info->cir_bw.bw_alloc;
+		status = ice_sched_cfg_node_bw_alloc(hw, node, ICE_MIN_BW,
+						     bw_alloc);
+		if (status)
+			return status;
+	}
+	if (test_bit(ICE_BW_TYPE_EIR, bw_t_info->bw_t_bitmap)) {
+		status = ice_sched_set_node_bw_lmt(pi, node, ICE_MAX_BW,
+						   bw_t_info->eir_bw.bw);
+		if (status)
+			return status;
+	}
+	if (test_bit(ICE_BW_TYPE_EIR_WT, bw_t_info->bw_t_bitmap)) {
+		bw_alloc = bw_t_info->eir_bw.bw_alloc;
+		status = ice_sched_cfg_node_bw_alloc(hw, node, ICE_MAX_BW,
+						     bw_alloc);
+		if (status)
+			return status;
+	}
+	if (test_bit(ICE_BW_TYPE_SHARED, bw_t_info->bw_t_bitmap))
+		status = ice_sched_set_node_bw_lmt(pi, node, ICE_SHARED_BW,
+						   bw_t_info->shared_bw);
+	return status;
+}
+
+/**
+ * ice_sched_replay_q_bw - replay queue type node BW
+ * @pi: port information structure
+ * @q_ctx: queue context structure
+ *
+ * This function replays queue type node bandwidth. This function needs to be
+ * called with scheduler lock held.
+ */
+enum ice_status
+ice_sched_replay_q_bw(struct ice_port_info *pi, struct ice_q_ctx *q_ctx)
+{
+	struct ice_sched_node *q_node;
+
+	/* Following also checks the presence of node in tree */
+	q_node = ice_sched_find_node_by_teid(pi->root, q_ctx->q_teid);
+	if (!q_node)
+		return ICE_ERR_PARAM;
+	return ice_sched_replay_node_bw(pi->hw, q_node, &q_ctx->bw_t_info);
+}