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ice: Introduce new parameters in ice_sched_node

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To support new devlink-rate API ice_sched_node struct needs to store
a number of additional parameters. This includes tx_max, tx_share,
tx_weight, and tx_priority.

Add new fields to ice_sched_node struct. Add new functions to configure
the hardware with new parameters. Introduce new xarray to identify
nodes uniquely.

Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michal Wilczynski 2022-11-15 11:48:20 +01:00 committed by Jakub Kicinski
parent f2fc15e271
commit 16dfa49406
5 changed files with 116 additions and 7 deletions
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4
drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
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@ -848,9 +848,9 @@ struct ice_aqc_txsched_elem {
u8 generic;
#define ICE_AQC_ELEM_GENERIC_MODE_M 0x1
#define ICE_AQC_ELEM_GENERIC_PRIO_S 0x1
#define ICE_AQC_ELEM_GENERIC_PRIO_M (0x7 << ICE_AQC_ELEM_GENERIC_PRIO_S)
#define ICE_AQC_ELEM_GENERIC_PRIO_M GENMASK(3, 1)
#define ICE_AQC_ELEM_GENERIC_SP_S 0x4
#define ICE_AQC_ELEM_GENERIC_SP_M (0x1 << ICE_AQC_ELEM_GENERIC_SP_S)
#define ICE_AQC_ELEM_GENERIC_SP_M GENMASK(4, 4)
#define ICE_AQC_ELEM_GENERIC_ADJUST_VAL_S 0x5
#define ICE_AQC_ELEM_GENERIC_ADJUST_VAL_M \
(0x3 << ICE_AQC_ELEM_GENERIC_ADJUST_VAL_S)

3
drivers/net/ethernet/intel/ice/ice_common.c
View File

@ -1105,6 +1105,9 @@ int ice_init_hw(struct ice_hw *hw)
hw->evb_veb = true;
/* init xarray for identifying scheduling nodes uniquely */
xa_init_flags(&hw->port_info->sched_node_ids, XA_FLAGS_ALLOC);
/* Query the allocated resources for Tx scheduler */
status = ice_sched_query_res_alloc(hw);
if (status) {

81
drivers/net/ethernet/intel/ice/ice_sched.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */
#include <net/devlink.h>
#include "ice_sched.h"
/**
@ -355,6 +356,9 @@ void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node)
/* leaf nodes have no children */
if (node->children)
devm_kfree(ice_hw_to_dev(hw), node->children);
kfree(node->name);
xa_erase(&pi->sched_node_ids, node->id);
devm_kfree(ice_hw_to_dev(hw), node);
}
@ -875,7 +879,7 @@ void ice_sched_cleanup_all(struct ice_hw *hw)
*
* This function add nodes to HW as well as to SW DB for a given layer
*/
static int
int
ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node,
struct ice_sched_node *parent, u8 layer, u16 num_nodes,
u16 *num_nodes_added, u32 *first_node_teid)
@ -940,6 +944,22 @@ ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node,
new_node->sibling = NULL;
new_node->tc_num = tc_node->tc_num;
new_node->tx_weight = ICE_SCHED_DFLT_BW_WT;
new_node->tx_share = ICE_SCHED_DFLT_BW;
new_node->tx_max = ICE_SCHED_DFLT_BW;
new_node->name = kzalloc(SCHED_NODE_NAME_MAX_LEN, GFP_KERNEL);
if (!new_node->name)
return -ENOMEM;
status = xa_alloc(&pi->sched_node_ids, &new_node->id, NULL, XA_LIMIT(0, UINT_MAX),
GFP_KERNEL);
if (status) {
ice_debug(hw, ICE_DBG_SCHED, "xa_alloc failed for sched node status =%d\n",
status);
break;
}
snprintf(new_node->name, SCHED_NODE_NAME_MAX_LEN, "node_%u", new_node->id);
/* add it to previous node sibling pointer */
/* Note: siblings are not linked across branches */
@ -2154,7 +2174,7 @@ ice_sched_get_free_vsi_parent(struct ice_hw *hw, struct ice_sched_node *node,
* This function removes the child from the old parent and adds it to a new
* parent
*/
static void
void
ice_sched_update_parent(struct ice_sched_node *new_parent,
struct ice_sched_node *node)
{
@ -2188,7 +2208,7 @@ ice_sched_update_parent(struct ice_sched_node *new_parent,
*
* This function move the child nodes to a given parent.
*/
static int
int
ice_sched_move_nodes(struct ice_port_info *pi, struct ice_sched_node *parent,
u16 num_items, u32 *list)
{
@ -3560,7 +3580,7 @@ ice_sched_set_eir_srl_excl(struct ice_port_info *pi,
* 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 int
int
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)
{
@ -3596,6 +3616,57 @@ ice_sched_set_node_bw(struct ice_port_info *pi, struct ice_sched_node *node,
ICE_AQC_RL_PROFILE_TYPE_M, old_id);
}
/**
* ice_sched_set_node_priority - set node's priority
* @pi: port information structure
* @node: tree node
* @priority: number 0-7 representing priority among siblings
*
* This function sets priority of a node among it's siblings.
*/
int
ice_sched_set_node_priority(struct ice_port_info *pi, struct ice_sched_node *node,
u16 priority)
{
struct ice_aqc_txsched_elem_data buf;
struct ice_aqc_txsched_elem *data;
buf = node->info;
data = &buf.data;
data->valid_sections |= ICE_AQC_ELEM_VALID_GENERIC;
data->generic |= FIELD_PREP(ICE_AQC_ELEM_GENERIC_PRIO_M, priority);
return ice_sched_update_elem(pi->hw, node, &buf);
}
/**
* ice_sched_set_node_weight - set node's weight
* @pi: port information structure
* @node: tree node
* @weight: number 1-200 representing weight for WFQ
*
* This function sets weight of the node for WFQ algorithm.
*/
int
ice_sched_set_node_weight(struct ice_port_info *pi, struct ice_sched_node *node, u16 weight)
{
struct ice_aqc_txsched_elem_data buf;
struct ice_aqc_txsched_elem *data;
buf = node->info;
data = &buf.data;
data->valid_sections = ICE_AQC_ELEM_VALID_CIR | ICE_AQC_ELEM_VALID_EIR |
ICE_AQC_ELEM_VALID_GENERIC;
data->cir_bw.bw_alloc = cpu_to_le16(weight);
data->eir_bw.bw_alloc = cpu_to_le16(weight);
data->generic |= FIELD_PREP(ICE_AQC_ELEM_GENERIC_SP_M, 0x0);
return ice_sched_update_elem(pi->hw, node, &buf);
}
/**
* ice_sched_set_node_bw_lmt - set node's BW limit
* @pi: port information structure
@ -3606,7 +3677,7 @@ ice_sched_set_node_bw(struct ice_port_info *pi, struct ice_sched_node *node,
* 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 int
int
ice_sched_set_node_bw_lmt(struct ice_port_info *pi, struct ice_sched_node *node,
enum ice_rl_type rl_type, u32 bw)
{

27
drivers/net/ethernet/intel/ice/ice_sched.h
View File

@ -6,6 +6,8 @@
#include "ice_common.h"
#define SCHED_NODE_NAME_MAX_LEN 32
#define ICE_QGRP_LAYER_OFFSET 2
#define ICE_VSI_LAYER_OFFSET 4
#define ICE_AGG_LAYER_OFFSET 6
@ -69,6 +71,28 @@ int
ice_aq_query_sched_elems(struct ice_hw *hw, u16 elems_req,
struct ice_aqc_txsched_elem_data *buf, u16 buf_size,
u16 *elems_ret, struct ice_sq_cd *cd);
int
ice_sched_set_node_bw_lmt(struct ice_port_info *pi, struct ice_sched_node *node,
enum ice_rl_type rl_type, u32 bw);
int
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);
int
ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node,
struct ice_sched_node *parent, u8 layer, u16 num_nodes,
u16 *num_nodes_added, u32 *first_node_teid);
int
ice_sched_move_nodes(struct ice_port_info *pi, struct ice_sched_node *parent,
u16 num_items, u32 *list);
int ice_sched_set_node_priority(struct ice_port_info *pi, struct ice_sched_node *node,
u16 priority);
int ice_sched_set_node_weight(struct ice_port_info *pi, struct ice_sched_node *node, u16 weight);
int ice_sched_init_port(struct ice_port_info *pi);
int ice_sched_query_res_alloc(struct ice_hw *hw);
void ice_sched_get_psm_clk_freq(struct ice_hw *hw);
@ -82,6 +106,9 @@ ice_sched_find_node_by_teid(struct ice_sched_node *start_node, u32 teid);
int
ice_sched_add_node(struct ice_port_info *pi, u8 layer,
struct ice_aqc_txsched_elem_data *info);
void
ice_sched_update_parent(struct ice_sched_node *new_parent,
struct ice_sched_node *node);
void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node);
struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc);
struct ice_sched_node *

8
drivers/net/ethernet/intel/ice/ice_type.h
View File

@ -524,7 +524,14 @@ struct ice_sched_node {
struct ice_sched_node *sibling; /* next sibling in the same layer */
struct ice_sched_node **children;
struct ice_aqc_txsched_elem_data info;
char *name;
struct devlink_rate *rate_node;
u64 tx_max;
u64 tx_share;
u32 agg_id; /* aggregator group ID */
u32 id;
u32 tx_priority;
u32 tx_weight;
u16 vsi_handle;
u8 in_use; /* suspended or in use */
u8 tx_sched_layer; /* Logical Layer (1-9) */
@ -706,6 +713,7 @@ struct ice_port_info {
/* List contain profile ID(s) and other params per layer */
struct list_head rl_prof_list[ICE_AQC_TOPO_MAX_LEVEL_NUM];
struct ice_qos_cfg qos_cfg;
struct xarray sched_node_ids;
u8 is_vf:1;
};