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scsi: ufs: ufs-mediatek: Provide detailed description for UIC errors

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Provide detailed description in logs for UIC errors for easier issue
breakdown.

Link: https://lore.kernel.org/r/20220802235437.4547-3-stanley.chu@mediatek.com
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2022-08-03 07:54:34 +08:00 committed by Martin K. Petersen
parent de9f43f0d2
commit 4d869fe67a
1 changed files with 58 additions and 0 deletions
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58
drivers/ufs/host/ufs-mediatek.c
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@ -46,6 +46,44 @@ static const struct of_device_id ufs_mtk_of_match[] = {
{},
};
/*
* Details of UIC Errors
*/
static const char *const ufs_uic_err_str[] = {
"PHY Adapter Layer",
"Data Link Layer",
"Network Link Layer",
"Transport Link Layer",
"DME"
};
static const char *const ufs_uic_pa_err_str[] = {
"PHY error on Lane 0",
"PHY error on Lane 1",
"PHY error on Lane 2",
"PHY error on Lane 3",
"Generic PHY Adapter Error. This should be the LINERESET indication"
};
static const char *const ufs_uic_dl_err_str[] = {
"NAC_RECEIVED",
"TCx_REPLAY_TIMER_EXPIRED",
"AFCx_REQUEST_TIMER_EXPIRED",
"FCx_PROTECTION_TIMER_EXPIRED",
"CRC_ERROR",
"RX_BUFFER_OVERFLOW",
"MAX_FRAME_LENGTH_EXCEEDED",
"WRONG_SEQUENCE_NUMBER",
"AFC_FRAME_SYNTAX_ERROR",
"NAC_FRAME_SYNTAX_ERROR",
"EOF_SYNTAX_ERROR",
"FRAME_SYNTAX_ERROR",
"BAD_CTRL_SYMBOL_TYPE",
"PA_INIT_ERROR",
"PA_ERROR_IND_RECEIVED",
"PA_INIT"
};
static bool ufs_mtk_is_boost_crypt_enabled(struct ufs_hba *hba)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
@ -1309,8 +1347,28 @@ static void ufs_mtk_event_notify(struct ufs_hba *hba,
enum ufs_event_type evt, void *data)
{
unsigned int val = *(u32 *)data;
unsigned long reg;
u8 bit;
trace_ufs_mtk_event(evt, val);
/* Print details of UIC Errors */
if (evt <= UFS_EVT_DME_ERR) {
dev_info(hba->dev,
"Host UIC Error Code (%s): %08x\n",
ufs_uic_err_str[evt], val);
reg = val;
}
if (evt == UFS_EVT_PA_ERR) {
for_each_set_bit(bit, &reg, ARRAY_SIZE(ufs_uic_pa_err_str))
dev_info(hba->dev, "%s\n", ufs_uic_pa_err_str[bit]);
}
if (evt == UFS_EVT_DL_ERR) {
for_each_set_bit(bit, &reg, ARRAY_SIZE(ufs_uic_dl_err_str))
dev_info(hba->dev, "%s\n", ufs_uic_dl_err_str[bit]);
}
}
/*