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ANDROID: mmc: Add vendor hooks for sdcard failure diagnostics

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For sdcard failure diagnostics, add vendor hooks to monitor the sdcard
bus speed mode change and the sdcard reset failure in the request
recovery handling.

Bug: 303549480
Change-Id: Id40337ffb09a31199335cdb8a273d76618415649
Signed-off-by: Keita Aihara <keita.aihara@sony.com>
This commit is contained in:
Keita Aihara 2023-09-29 10:57:49 +09:00 committed by Todd Kjos
parent f8d3b450e9
commit 977770ec27
4 changed files with 18 additions and 0 deletions
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2
drivers/android/vendor_hooks.c
View File

@ -351,3 +351,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_resume_begin);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_resume_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_early_resume_begin);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_filemap_get_folio);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmc_blk_mq_rw_recovery);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sd_update_bus_speed_mode);

3
drivers/mmc/core/block.c
View File

@ -49,6 +49,8 @@
#include <linux/uaccess.h>
#include <trace/hooks/mmc.h>
#include "queue.h"
#include "block.h"
#include "core.h"
@ -1870,6 +1872,7 @@ static void mmc_blk_mq_rw_recovery(struct mmc_queue *mq, struct request *req)
err && mmc_blk_reset(md, card->host, type)) {
pr_err("%s: recovery failed!\n", req->q->disk->disk_name);
mqrq->retries = MMC_NO_RETRIES;
trace_android_vh_mmc_blk_mq_rw_recovery(card);
return;
}

4
drivers/mmc/core/sd.c
View File

@ -21,6 +21,8 @@
#include <linux/mmc/mmc.h>
#include <linux/mmc/sd.h>
#include <trace/hooks/mmc.h>
#include "core.h"
#include "card.h"
#include "host.h"
@ -481,6 +483,8 @@ static void sd_update_bus_speed_mode(struct mmc_card *card)
SD_MODE_UHS_SDR12)) {
card->sd_bus_speed = UHS_SDR12_BUS_SPEED;
}
trace_android_vh_sd_update_bus_speed_mode(card);
}
static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)

9
include/trace/hooks/mmc.h
View File

@ -7,11 +7,20 @@
#define _TRACE_HOOK_MMC_H
#include <trace/hooks/vendor_hooks.h>
struct mmc_host;
struct mmc_card;
/*
* Following tracepoints are not exported in tracefs and provide a
* mechanism for vendor modules to hook and extend functionality
*/
DECLARE_HOOK(android_vh_mmc_blk_mq_rw_recovery,
TP_PROTO(struct mmc_card *card),
TP_ARGS(card));
DECLARE_HOOK(android_vh_sd_update_bus_speed_mode,
TP_PROTO(struct mmc_card *card),
TP_ARGS(card));
DECLARE_RESTRICTED_HOOK(android_rvh_mmc_suspend,
TP_PROTO(struct mmc_host *host),
TP_ARGS(host), 1);