Re: [PATCH 08/21] libmultipath/checkers: rdac: use message id

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On Fri, Oct 12, 2018 at 12:26:54AM +0200, Martin Wilck wrote:

Reviewed-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>

> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
> ---
>  libmultipath/checkers/rdac.c | 64 +++++++++++++++++++++++++-----------
>  1 file changed, 45 insertions(+), 19 deletions(-)
> 
> diff --git a/libmultipath/checkers/rdac.c b/libmultipath/checkers/rdac.c
> index 5104e4e5..266f8e10 100644
> --- a/libmultipath/checkers/rdac.c
> +++ b/libmultipath/checkers/rdac.c
> @@ -31,9 +31,7 @@
>  #define CURRENT_PAGE_CODE_VALUES	0
>  #define CHANGEABLE_PAGE_CODE_VALUES	1
>  
> -#define MSG_RDAC_UP    "rdac checker reports path is up"
> -#define MSG_RDAC_DOWN  "rdac checker reports path is down"
> -#define MSG_RDAC_GHOST "rdac checker reports path is ghost"
> +#define MSG_RDAC_DOWN  " reports path is down"
>  #define MSG_RDAC_DOWN_TYPE(STR) MSG_RDAC_DOWN": "STR
>  
>  #define RTPG_UNAVAILABLE	0x3
> @@ -219,41 +217,69 @@ struct volume_access_inq
>  	char dontcare1[34];
>  };
>  
> -const char
> -*checker_msg_string(struct volume_access_inq *inq)
> +enum {
> +	RDAC_MSGID_NOT_CONN = CHECKER_FIRST_MSGID,
> +	RDAC_MSGID_IN_STARTUP,
> +	RDAC_MSGID_NON_RESPONSIVE,
> +	RDAC_MSGID_IN_RESET,
> +	RDAC_MSGID_FW_DOWNLOADING,
> +	RDAC_MSGID_QUIESCED,
> +	RDAC_MSGID_SERVICE_MODE,
> +	RDAC_MSGID_UNAVAILABLE,
> +	RDAC_MSGID_INQUIRY_FAILED,
> +};
> +
> +#define _IDX(x) (RDAC_MSGID_##x - CHECKER_FIRST_MSGID)
> +const char *libcheck_msgtable[] = {
> +	[_IDX(NOT_CONN)] = MSG_RDAC_DOWN_TYPE("lun not connected"),
> +	[_IDX(IN_STARTUP)] = MSG_RDAC_DOWN_TYPE("ctlr is in startup sequence"),
> +	[_IDX(NON_RESPONSIVE)] =
> +	MSG_RDAC_DOWN_TYPE("non-responsive to queries"),
> +	[_IDX(IN_RESET)] = MSG_RDAC_DOWN_TYPE("ctlr held in reset"),
> +	[_IDX(FW_DOWNLOADING)] =
> +	MSG_RDAC_DOWN_TYPE("ctlr firmware downloading"),
> +	[_IDX(QUIESCED)] = MSG_RDAC_DOWN_TYPE("ctlr quiesced by admin request"),
> +	[_IDX(SERVICE_MODE)] = MSG_RDAC_DOWN_TYPE("ctlr is in service mode"),
> +	[_IDX(UNAVAILABLE)] = MSG_RDAC_DOWN_TYPE("ctlr is unavailable"),
> +	[_IDX(INQUIRY_FAILED)] = MSG_RDAC_DOWN_TYPE("inquiry failed"),
> +	NULL,
> +};
> +
> +static int
> +checker_msg_string(const struct volume_access_inq *inq)
>  {
>  	/* lun not connected */
>  	if (((inq->PQ_PDT & 0xE0) == 0x20) || (inq->PQ_PDT & 0x7f))
> -		return MSG_RDAC_DOWN_TYPE("lun not connected");
> +		return RDAC_MSGID_NOT_CONN;
>  
>  	/* if no tpg data is available, give the generic path down message */
>  	if (!(inq->avtcvp & 0x10))
> -		return MSG_RDAC_DOWN;
> +		return CHECKER_MSGID_DOWN;
>  
>  	/* controller is booting up */
>  	if (((inq->aas_cur & 0x0F) == RTPG_TRANSITIONING) &&
>  		(inq->aas_alt & 0x0F) != RTPG_TRANSITIONING)
> -		return MSG_RDAC_DOWN_TYPE("ctlr is in startup sequence");
> +		return RDAC_MSGID_IN_STARTUP;
>  
>  	/* if not unavailable, give generic message */
>  	if ((inq->aas_cur & 0x0F) != RTPG_UNAVAILABLE)
> -		return MSG_RDAC_DOWN;
> +		return CHECKER_MSGID_DOWN;
>  
>  	/* target port group unavailable */
>  	switch (inq->vendor_specific_cur) {
>  	case RTPG_UNAVAIL_NON_RESPONSIVE:
> -		return MSG_RDAC_DOWN_TYPE("non-responsive to queries");
> +		return RDAC_MSGID_NON_RESPONSIVE;
>  	case RTPG_UNAVAIL_IN_RESET:
> -		return MSG_RDAC_DOWN_TYPE("ctlr held in reset");
> +		return RDAC_MSGID_IN_RESET;
>  	case RTPG_UNAVAIL_CFW_DL1:
>  	case RTPG_UNAVAIL_CFW_DL2:
> -		return MSG_RDAC_DOWN_TYPE("ctlr firmware downloading");
> +		return RDAC_MSGID_FW_DOWNLOADING;
>  	case RTPG_UNAVAIL_QUIESCED:
> -		return MSG_RDAC_DOWN_TYPE("ctlr quiesced by admin request");
> +		return RDAC_MSGID_QUIESCED;
>  	case RTPG_UNAVAIL_SERVICE_MODE:
> -		return MSG_RDAC_DOWN_TYPE("ctlr is in service mode");
> +		return RDAC_MSGID_SERVICE_MODE;
>  	default:
> -		return MSG_RDAC_DOWN_TYPE("ctlr is unavailable");
> +		return RDAC_MSGID_UNAVAILABLE;
>  	}
>  }
>  
> @@ -307,14 +333,14 @@ int libcheck_check(struct checker * c)
>  done:
>  	switch (ret) {
>  	case PATH_DOWN:
> -		MSG(c, "%s", (inqfail) ? MSG_RDAC_DOWN_TYPE("inquiry failed") :
> -			checker_msg_string(&inq));
> +		c->msgid = (inqfail ? RDAC_MSGID_INQUIRY_FAILED :
> +			    checker_msg_string(&inq));
>  		break;
>  	case PATH_UP:
> -		MSG(c, MSG_RDAC_UP);
> +		c->msgid = CHECKER_MSGID_UP;
>  		break;
>  	case PATH_GHOST:
> -		MSG(c, MSG_RDAC_GHOST);
> +		c->msgid = CHECKER_MSGID_GHOST;
>  		break;
>  	}
>  
> -- 
> 2.19.0

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