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Message-ID: <CAMGffEmEJp_oVAsbCVV9PKs7vOKWLrUhRGcBGoUSx7+t4ZtsQA@mail.gmail.com>
Date: Thu, 17 Oct 2024 08:45:43 +0200
From: Jinpu Wang <jinpu.wang@...os.com>
To: Salomon Dushimirimana <salomondush@...gle.com>
Cc: Jack Wang <jinpu.wang@...ud.ionos.com>, 
	"James E . J . Bottomley" <James.Bottomley@...senpartnership.com>, 
	"Martin K . Petersen" <martin.petersen@...cle.com>, linux-scsi@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Bhavesh Jashnani <bjashnani@...gle.com>
Subject: Re: [PATCH] scsi: pm80xx: Use module param to set pcs event log severity

Hi,

On Thu, Oct 17, 2024 at 12:10 AM Salomon Dushimirimana
<salomondush@...gle.com> wrote:
>
> The pm8006 driver sets pcs event log threshold very high which causes
> most of the FW logs to not be captured. This adds a module parameter to
> configure pcs event log severity with 3 (medium severity) as the
> default.
upstream does not like more module parameters, can we just change the
default to 3, any harm?

Thx!
>
> Signed-off-by: Bhavesh Jashnani <bjashnani@...gle.com>
> Signed-off-by: Salomon Dushimirimana <salomondush@...gle.com>
> ---
>  drivers/scsi/pm8001/pm8001_init.c | 4 ++++
>  drivers/scsi/pm8001/pm8001_sas.h  | 2 ++
>  drivers/scsi/pm8001/pm80xx_hwi.c  | 3 ++-
>  3 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
> index 1e63cb6cd8e3..355aab0c982a 100644
> --- a/drivers/scsi/pm8001/pm8001_init.c
> +++ b/drivers/scsi/pm8001/pm8001_init.c
> @@ -68,6 +68,10 @@ static bool pm8001_read_wwn = true;
>  module_param_named(read_wwn, pm8001_read_wwn, bool, 0444);
>  MODULE_PARM_DESC(zoned, "Get WWN from the controller. Default: true");
>
> +uint pcs_event_log_severity = 0x03;
> +module_param(pcs_event_log_severity, int, 0644);
> +MODULE_PARM_DESC(pcs_event_log_severity, "PCS event log severity level");
> +
>  static struct scsi_transport_template *pm8001_stt;
>  static int pm8001_init_ccb_tag(struct pm8001_hba_info *);
>
> diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
> index ced6721380a8..42c7b3f7afbf 100644
> --- a/drivers/scsi/pm8001/pm8001_sas.h
> +++ b/drivers/scsi/pm8001/pm8001_sas.h
> @@ -96,6 +96,8 @@ extern struct list_head hba_list;
>  extern const struct pm8001_dispatch pm8001_8001_dispatch;
>  extern const struct pm8001_dispatch pm8001_80xx_dispatch;
>
> +extern uint pcs_event_log_severity;
> +
>  struct pm8001_hba_info;
>  struct pm8001_ccb_info;
>  struct pm8001_device;
> diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
> index 8fe886dc5e47..9b237a764d0b 100644
> --- a/drivers/scsi/pm8001/pm80xx_hwi.c
> +++ b/drivers/scsi/pm8001/pm80xx_hwi.c
> @@ -763,7 +763,8 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
>                 pm8001_ha->memoryMap.region[IOP].phys_addr_lo;
>         pm8001_ha->main_cfg_tbl.pm80xx_tbl.pcs_event_log_size           =
>                                                         PM8001_EVENT_LOG_SIZE;
> -       pm8001_ha->main_cfg_tbl.pm80xx_tbl.pcs_event_log_severity       = 0x01;
> +       pm8001_ha->main_cfg_tbl.pm80xx_tbl.pcs_event_log_severity       =
> +               pcs_event_log_severity;
>         pm8001_ha->main_cfg_tbl.pm80xx_tbl.fatal_err_interrupt          = 0x01;
>
>         /* Enable higher IQs and OQs, 32 to 63, bit 16 */
> --
> 2.47.0.rc1.288.g06298d1525-goog
>

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