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scsi: mpt3sas: Display message before releasing diag buffer

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Display message before releasing the diag buffer so that user knows which
event caused the release of diag buffer.

Releasing of diag buffer means HBA firmware stops posting the firmware logs
on the registered diag buffer.

Link: https://lore.kernel.org/r/1568379890-18347-3-git-send-email-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sreekanth Reddy 2019-09-13 09:04:39 -04:00 committed by Martin K. Petersen
parent d04a6edfed
commit 4bc50dc1af
2 changed files with 16 additions and 3 deletions
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7
drivers/scsi/mpt3sas/mpt3sas_ctl.c
View File

@ -466,6 +466,13 @@ void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
if ((ioc->diag_buffer_status[i] &
MPT3_DIAG_BUFFER_IS_RELEASED))
continue;
/*
* add a log message to indicate the release
*/
ioc_info(ioc,
"%s: Releasing the trace buffer due to adapter reset.",
__func__);
mpt3sas_send_diag_release(ioc, i, &issue_reset);
}
}

12
drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
View File

@ -113,15 +113,21 @@ mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
{
u8 issue_reset = 0;
u32 *trig_data = (u32 *)&event_data->u.master;
dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));
/* release the diag buffer trace */
if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
dTriggerDiagPrintk(ioc,
ioc_info(ioc, "%s: release trace diag buffer\n",
__func__));
/*
* add a log message so that user knows which event caused
* the release
*/
ioc_info(ioc,
"%s: Releasing the trace buffer. Trigger_Type 0x%08x, Data[0] 0x%08x, Data[1] 0x%08x\n",
__func__, event_data->trigger_type,
trig_data[0], trig_data[1]);
mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
&issue_reset);
}