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qcacmn: Add histogram framework for DP path

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A new framework added to calculate the per packet level
histogram

Change-Id: Iac52f7a672fa2afe1d6aec26931a8bc3115c6a98
This commit is contained in:
Aniruddha Paul
2020-05-12 19:55:22 +05:30
committed by nshrivas
parent 9cf786a2ab
commit 96a1be4fcb
5 changed files with 353 additions and 0 deletions
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89
dp/inc/cdp_txrx_hist_struct.h Normal file
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@@ -0,0 +1,89 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/**
* @file cdp_txrx_hist_struct.h
* @brief Define the host data path histogram data types
*/
#ifndef _CDP_TXRX_HIST_STRUCT_H_
#define _CDP_TXRX_HIST_STRUCT_H_
/*
* cdp_hist_bucket_index : Histogram Bucket
* @CDP_HIST_BUCKET_0: Bucket Index 0
* @CDP_HIST_BUCKET_1: Bucket Index 1
* @CDP_HIST_BUCKET_2: Bucket Index 2
* @CDP_HIST_BUCKET_3: Bucket Index 3
* @CDP_HIST_BUCKET_4: Bucket Index 4
* @CDP_HIST_BUCKET_5: Bucket Index 5
* @CDP_HIST_BUCKET_6: Bucket Index 6
* @CDP_HIST_BUCKET_7: Bucket Index 7
* @CDP_HIST_BUCKET_8: Bucket Index 8
* @CDP_HIST_BUCKET_9: Bucket Index 9
*/
enum cdp_hist_bucket_index {
CDP_HIST_BUCKET_0,
CDP_HIST_BUCKET_1,
CDP_HIST_BUCKET_2,
CDP_HIST_BUCKET_3,
CDP_HIST_BUCKET_4,
CDP_HIST_BUCKET_5,
CDP_HIST_BUCKET_6,
CDP_HIST_BUCKET_7,
CDP_HIST_BUCKET_8,
CDP_HIST_BUCKET_9,
CDP_HIST_BUCKET_MAX,
};
/*
* cdp_hist_types: Histogram Types
* @CDP_HIST_TYPE_SW_ENQEUE_DELAY: From stack to HW enqueue delay
* @CDP_HIST_TYPE_HW_COMP_DELAY: From HW enqueue to completion delay
* @CDP_HIST_TYPE_REAP_STACK: Rx HW reap to stack deliver delay
*/
enum cdp_hist_types {
CDP_HIST_TYPE_SW_ENQEUE_DELAY,
CDP_HIST_TYPE_HW_COMP_DELAY,
CDP_HIST_TYPE_REAP_STACK,
CDP_HIST_TYPE_MAX,
};
/*
* cdp_hist_bucket: Histogram Bucket
* @hist_type: Histogram type
* @freq: Frequency
*/
struct cdp_hist_bucket {
enum cdp_hist_types hist_type;
uint64_t freq[CDP_HIST_BUCKET_MAX];
};
/*
* cdp_hist_stats : Histogram of a stats type
* @hist: Frequency distribution
* @max: Max frequency
* @min: Minimum frequency
* @avg: Average frequency
*/
struct cdp_hist_stats {
struct cdp_hist_bucket hist;
int max;
int min;
int avg;
};
#endif /* _CDP_TXRX_HIST_STRUCT_H_ */

45
dp/inc/cdp_txrx_stats_struct.h
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@@ -25,6 +25,7 @@
#define _CDP_TXRX_STATS_STRUCT_H_ #define _CDP_TXRX_STATS_STRUCT_H_
#include <qdf_types.h> #include <qdf_types.h>
#include <cdp_txrx_hist_struct.h>
#define TXRX_STATS_LEVEL_OFF 0 #define TXRX_STATS_LEVEL_OFF 0
#define TXRX_STATS_LEVEL_BASIC 1 #define TXRX_STATS_LEVEL_BASIC 1
@@ -76,6 +77,11 @@
#define CDP_MAX_TX_TQM_STATUS 9 /* max tx tqm completion status */ #define CDP_MAX_TX_TQM_STATUS 9 /* max tx tqm completion status */
#define CDP_MAX_TX_HTT_STATUS 7 /* max tx htt completion status */ #define CDP_MAX_TX_HTT_STATUS 7 /* max tx htt completion status */
/*
* Max of TxRx context
*/
#define CDP_MAX_TXRX_CTX CDP_MAX_RX_RINGS
/* TID level VoW stats macros /* TID level VoW stats macros
* to add and get stats * to add and get stats
*/ */
@@ -509,6 +515,45 @@ struct cdp_tid_stats {
[CDP_MAX_DATA_TIDS]; [CDP_MAX_DATA_TIDS];
}; };
/*
* struct cdp_delay_tx_stats: Tx delay stats
* @tx_swq_delay: software enqueue delay
* @hwtx_delay: HW enque to completion delay
*/
struct cdp_delay_tx_stats {
struct cdp_hist_stats tx_swq_delay;
struct cdp_hist_stats hwtx_delay;
};
/*
* struct cdp_delay_rx_stats: Rx delay stats
* @to_stack_delay: To stack delay
*/
struct cdp_delay_rx_stats {
struct cdp_hist_stats to_stack_delay;
};
/*
* struct cdp_delay_tid_stats: Delay tid stats
* @tx_delay: Tx delay related stats
* @rx_delay: Rx delay related stats
*/
struct cdp_delay_tid_stats {
struct cdp_delay_tx_stats tx_delay;
struct cdp_delay_rx_stats rx_delay;
};
/*
* cdp_peer_ext_stats: Peer extended stats
* @delay_stats: Per TID delay stats
*/
struct cdp_peer_ext_stats {
struct cdp_delay_tid_stats delay_stats[CDP_MAX_DATA_TIDS]
[CDP_MAX_TXRX_CTX];
/*Customer can add MSDU level Tx/Rx stats */
};
/* struct cdp_pkt_info - packet info /* struct cdp_pkt_info - packet info
* @num: no of packets * @num: no of packets
* @bytes: total no of bytes * @bytes: total no of bytes

176
dp/wifi3.0/dp_hist.c Normal file
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@@ -0,0 +1,176 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <qdf_util.h>
#include <qdf_mem.h>
#include <cdp_txrx_hist_struct.h>
#include "dp_hist.h"
/*
* dp_hist_sw_enq_dbucket: Sofware enqueue delay bucket in ms
* @index_0 = 0_1 ms
* @index_1 = 1_2 ms
* @index_2 = 2_3 ms
* @index_3 = 3_4 ms
* @index_4 = 4_5 ms
* @index_5 = 5_6 ms
* @index_6 = 6_7 ms
* @index_7 = 7_8 ms
* @index_8 = 8_9 ms
* @index_8 = 9+ ms
*/
static uint16_t dp_hist_sw_enq_dbucket[CDP_HIST_BUCKET_MAX] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
/*
* cdp_hist_fw2hw_dbucket: HW enqueue to Completion Delay
* @index_0 = 0_10 ms
* @index_1 = 10_20 ms
* @index_2 = 20_30ms
* @index_3 = 30_40 ms
* @index_4 = 40_50 ms
* @index_5 = 50_60 ms
* @index_6 = 60_70 ms
* @index_7 = 70_80 ms
* @index_8 = 80_90 ms
* @index_9 = 90+ ms
*/
static uint16_t dp_hist_fw2hw_dbucket[CDP_HIST_BUCKET_MAX] = {
0, 10, 20, 30, 40, 50, 60, 70, 80, 90};
/*
* dp_hist_reap2stack_bucket: Reap to stack bucket
* @index_0 = 0_5 ms
* @index_1 = 5_10 ms
* @index_2 = 10_15 ms
* @index_3 = 15_20 ms
* @index_4 = 20_25 ms
* @index_5 = 25_30 ms
* @index_6 = 30_35 ms
* @index_7 = 35_40 ms
* @index_8 = 40_45 ms
* @index_9 = 45+ ms
*/
static uint16_t dp_hist_reap2stack_bucket[CDP_HIST_BUCKET_MAX] = {
0, 5, 10, 15, 20, 25, 30, 35, 40, 45};
/*
* dp_hist_find_bucket_idx: Find the bucket index
* @bucket_array: Bucket array
* @value: Frequency value
*
* Return: The bucket index
*/
static int dp_hist_find_bucket_idx(int16_t *bucket_array, int value)
{
uint8_t idx = CDP_HIST_BUCKET_0;
for (; idx < (CDP_HIST_BUCKET_MAX - 1); idx++) {
if (value < bucket_array[idx + 1])
break;
}
return idx;
}
/*
* dp_hist_fill_buckets: Fill the histogram frequency buckets
* @hist_bucket: Histogram bukcets
* @value: Frequency value
*
* Return: void
*/
static void dp_hist_fill_buckets(struct cdp_hist_bucket *hist_bucket, int value)
{
enum cdp_hist_types hist_type;
int idx = CDP_HIST_BUCKET_MAX;
if (qdf_unlikely(!hist_bucket))
return;
hist_type = hist_bucket->hist_type;
/* Identify the bucket the bucket and update. */
switch (hist_type) {
case CDP_HIST_TYPE_SW_ENQEUE_DELAY:
idx = dp_hist_find_bucket_idx(&dp_hist_sw_enq_dbucket[0],
value);
break;
case CDP_HIST_TYPE_HW_COMP_DELAY:
idx = dp_hist_find_bucket_idx(&dp_hist_fw2hw_dbucket[0],
value);
break;
case CDP_HIST_TYPE_REAP_STACK:
idx = dp_hist_find_bucket_idx(
&dp_hist_reap2stack_bucket[0], value);
break;
default:
break;
}
if (idx == CDP_HIST_BUCKET_MAX)
return;
hist_bucket->freq[idx]++;
}
/*
* dp_hist_update_stats: Update histogram stats
* @hist_stats: Hist stats object
* @value: Delay value
*
* Return: void
*/
void dp_hist_update_stats(struct cdp_hist_stats *hist_stats, int value)
{
if (qdf_unlikely(!hist_stats))
return;
/*
* Fill the histogram buckets according to the delay
*/
dp_hist_fill_buckets(&hist_stats->hist, value);
/*
* Compute the min, max and average. Average computed is weighted
* average
*/
if (value < hist_stats->min)
hist_stats->min = value;
if (value > hist_stats->max)
hist_stats->max = value;
if (qdf_unlikely(!hist_stats->avg))
hist_stats->avg = value;
else
hist_stats->avg = hist_stats->avg +
((value - hist_stats->avg) >> HIST_AVG_WEIGHT_DENOM);
}
/*
* dp_hist_init(): Initialize the histogram object
* @hist_stats: Hist stats object
* @hist_type: Histogram type
*/
void dp_hist_init(struct cdp_hist_stats *hist_stats,
enum cdp_hist_types hist_type)
{
qdf_mem_zero(hist_stats, sizeof(*hist_stats));
hist_stats->hist.hist_type = hist_type;
}

40
dp/wifi3.0/dp_hist.h Normal file
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@@ -0,0 +1,40 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/**
* @file dp_hist.h
* @brief: histogram header file
*/
#ifndef __DP_HIST_H_
#define __DP_HIST_H_
#define HIST_AVG_WEIGHT_DENOM 4
/*
* dp_hist_update_stats: Update histogram stats
* @hist_delay: Delay histogram
* @value: Delay value
*
* Return: void
*/
void dp_hist_update_stats(struct cdp_hist_stats *hist_stats, int value);
void dp_hist_init(struct cdp_hist_stats *hist_stats,
enum cdp_hist_types hist_type);
#endif /* __DP_HIST_H_ */

3
dp/wifi3.0/dp_types.h
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@@ -2275,6 +2275,9 @@ struct dp_peer {
/* Peer Stats */ /* Peer Stats */
struct cdp_peer_stats stats; struct cdp_peer_stats stats;
/* Peer extended stats */
struct cdp_peer_ext_stats *pext_stats;
TAILQ_HEAD(, dp_ast_entry) ast_entry_list; TAILQ_HEAD(, dp_ast_entry) ast_entry_list;
/* TBD */ /* TBD */