/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2001-2019
+ * Copyright(c) 2001-2020 Intel Corporation
*/
#include "ice_sched.h"
return ICE_ERR_PARAM;
}
- /* query the current node information from FW before additing it
+ /* query the current node information from FW before adding it
* to the SW DB
*/
status = ice_sched_query_elem(hw, LE32_TO_CPU(info->node_teid), &elem);
/**
* ice_aq_rl_profile - performs a rate limiting task
* @hw: pointer to the HW struct
- * @opcode:opcode for add, query, or remove profile(s)
+ * @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)
+ * 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,
}
/**
- * ice_sched_clear_tx_topo - clears the schduler tree nodes
+ * ice_sched_clear_tx_topo - clears the scheduler tree nodes
* @pi: port information structure
*
* This function removes all the nodes from HW as well as from SW DB.
u16 buf_size;
u32 teid;
- buf_size = sizeof(*buf) + sizeof(*buf->generic) * (num_nodes - 1);
+ buf_size = ice_struct_size(buf, generic, num_nodes - 1);
buf = (struct ice_aqc_add_elem *)ice_malloc(hw, buf_size);
if (!buf)
return ICE_ERR_NO_MEMORY;
return false;
}
+/**
+ * ice_sched_get_free_qgrp - Scan all Q group siblings and find a free node
+ * @pi: port information structure
+ * @vsi_node: software VSI handle
+ * @qgrp_node: first Q group node identified for scanning
+ * @owner: LAN or RDMA
+ *
+ * This function retrieves a free LAN or RDMA Q group node by scanning
+ * qgrp_node and its siblings for the Q group with the fewest number
+ * of queues currently assigned.
+ */
+static struct ice_sched_node *
+ice_sched_get_free_qgrp(struct ice_port_info *pi,
+ struct ice_sched_node *vsi_node,
+ struct ice_sched_node *qgrp_node, u8 owner)
+{
+ struct ice_sched_node *min_qgrp;
+ u8 min_children;
+
+ if (!qgrp_node)
+ return qgrp_node;
+ min_children = qgrp_node->num_children;
+ if (!min_children)
+ return qgrp_node;
+ min_qgrp = qgrp_node;
+ /* scan all Q groups until find a node which has less than the
+ * minimum number of children. This way all Q group nodes get
+ * equal number of shares and active. The bandwidth will be equally
+ * distributed across all Qs.
+ */
+ while (qgrp_node) {
+ /* make sure the qgroup node is part of the VSI subtree */
+ if (ice_sched_find_node_in_subtree(pi->hw, vsi_node, qgrp_node))
+ if (qgrp_node->num_children < min_children &&
+ qgrp_node->owner == owner) {
+ /* replace the new min Q group node */
+ min_qgrp = qgrp_node;
+ min_children = min_qgrp->num_children;
+ /* break if it has no children, */
+ if (!min_children)
+ break;
+ }
+ qgrp_node = qgrp_node->sibling;
+ }
+ return min_qgrp;
+}
+
/**
* ice_sched_get_free_qparent - Get a free LAN or RDMA queue group node
* @pi: port information structure
ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
u8 owner)
{
- struct ice_sched_node *vsi_node, *qgrp_node = NULL;
+ struct ice_sched_node *vsi_node, *qgrp_node;
struct ice_vsi_ctx *vsi_ctx;
u16 max_children;
u8 qgrp_layer;
vsi_node = vsi_ctx->sched.vsi_node[tc];
/* validate invalid VSI ID */
if (!vsi_node)
- goto lan_q_exit;
+ return NULL;
/* get the first queue group node from VSI sub-tree */
qgrp_node = ice_sched_get_first_node(pi, vsi_node, qgrp_layer);
qgrp_node = qgrp_node->sibling;
}
-lan_q_exit:
- return qgrp_node;
+ /* Select the best queue group */
+ return ice_sched_get_free_qgrp(pi, vsi_node, qgrp_node, owner);
}
/**
* This function removes single aggregator VSI info entry from
* aggregator list.
*/
-static void
-ice_sched_rm_agg_vsi_info(struct ice_port_info *pi, u16 vsi_handle)
+static void ice_sched_rm_agg_vsi_info(struct ice_port_info *pi, u16 vsi_handle)
{
struct ice_sched_agg_info *agg_info;
struct ice_sched_agg_info *atmp;
* This function validates aggregator ID. The function returns info if
* aggregator ID is present in list otherwise it returns null.
*/
-static struct ice_sched_agg_info*
+static struct ice_sched_agg_info *
ice_get_agg_info(struct ice_hw *hw, u32 agg_id)
{
struct ice_sched_agg_info *agg_info;
* The function returns aggregator VSI info based on VSI handle. This function
* needs to be called with scheduler lock held.
*/
-static struct ice_sched_agg_vsi_info*
+static struct ice_sched_agg_vsi_info *
ice_get_agg_vsi_info(struct ice_sched_agg_info *agg_info, u16 vsi_handle)
{
struct ice_sched_agg_vsi_info *agg_vsi_info;
* VSI has in this case a different aggregator than the default one. This
* function needs to be called with scheduler lock held.
*/
-static struct ice_sched_agg_info*
+static struct ice_sched_agg_info *
ice_get_vsi_agg_info(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_sched_agg_info *agg_info;
*/
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)
+ enum ice_rl_type rl_type, u16 bw_alloc)
{
struct ice_aqc_txsched_elem_data buf;
struct ice_aqc_txsched_elem *data;
*
* 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)
+static void ice_set_clear_cir_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
{
if (bw == ICE_SCHED_DFLT_BW) {
ice_clear_bit(ICE_BW_TYPE_CIR, bw_t_info->bw_t_bitmap);
*
* 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)
+static void ice_set_clear_eir_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
{
if (bw == ICE_SCHED_DFLT_BW) {
ice_clear_bit(ICE_BW_TYPE_EIR, bw_t_info->bw_t_bitmap);
*
* 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)
+static void ice_set_clear_shared_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
{
if (bw == ICE_SCHED_DFLT_BW) {
ice_clear_bit(ICE_BW_TYPE_SHARED, bw_t_info->bw_t_bitmap);
*
* Save or clear priority (prio) in the passed param bw_t_info.
*/
-static void
-ice_set_clear_prio(struct ice_bw_type_info *bw_t_info, u8 prio)
+static void ice_set_clear_prio(struct ice_bw_type_info *bw_t_info, u8 prio)
{
bw_t_info->generic = prio;
if (bw_t_info->generic)
* @pi: port information structure
* @num_qs: number of VSI queues
* @q_ids: queue IDs array
- * @q_ids: queue IDs array
* @q_prio: queue priority array
*
* This function configures the queue node priority (Sibling Priority) of the
hw = pi->hw;
LIST_FOR_EACH_ENTRY(rl_prof_elem, &pi->rl_prof_list[layer_num],
ice_aqc_rl_profile_info, list_entry)
- if (rl_prof_elem->profile.flags == profile_type &&
- rl_prof_elem->bw == bw)
+ if ((rl_prof_elem->profile.flags & ICE_AQC_RL_PROFILE_TYPE_M) ==
+ profile_type && rl_prof_elem->bw == bw)
/* Return existing profile ID info */
return rl_prof_elem;
/* Check the existing list for RL profile */
LIST_FOR_EACH_ENTRY(rl_prof_elem, &pi->rl_prof_list[layer_num],
ice_aqc_rl_profile_info, list_entry)
- if (rl_prof_elem->profile.flags == profile_type &&
+ if ((rl_prof_elem->profile.flags & ICE_AQC_RL_PROFILE_TYPE_M) ==
+ profile_type &&
LE16_TO_CPU(rl_prof_elem->profile.profile_id) ==
profile_id) {
if (rl_prof_elem->prof_id_ref)
return ICE_SUCCESS;
return ice_sched_rm_rl_profile(pi, layer_num,
- rl_prof_info->profile.flags,
- old_id);
+ rl_prof_info->profile.flags &
+ ICE_AQC_RL_PROFILE_TYPE_M, old_id);
}
/**
return ICE_SUCCESS;
}
-/*
+/**
* ice_sched_replay_node_prio - re-configure node priority
* @hw: pointer to the HW struct
* @node: sched node to configure
ice_acquire_lock(&pi->sched_lock);
LIST_FOR_EACH_ENTRY(agg_info, &hw->agg_list, ice_sched_agg_info,
- list_entry) {
+ list_entry)
/* replay aggregator (re-create aggregator node) */
if (!ice_cmp_bitmap(agg_info->tc_bitmap,
agg_info->replay_tc_bitmap,
ice_info(hw, "Replay agg bw [id=%d] failed\n",
agg_info->agg_id);
}
- }
ice_release_lock(&pi->sched_lock);
}
*
* This function replay TC nodes.
*/
-enum ice_status
-ice_sched_replay_tc_node_bw(struct ice_port_info *pi)
+enum ice_status ice_sched_replay_tc_node_bw(struct ice_port_info *pi)
{
enum ice_status status = ICE_SUCCESS;
u8 tc;
* This function replays association of VSI to aggregator type nodes, and
* node bandwidth information.
*/
-enum ice_status
-ice_replay_vsi_agg(struct ice_hw *hw, u16 vsi_handle)
+enum ice_status ice_replay_vsi_agg(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_port_info *pi = hw->port_info;
enum ice_status status;
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