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Re: [PATCH, take 2] libertas: convert GET_LOG to a direct command

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On Mon, 2008-03-17 at 12:45 +0100, Holger Schurig wrote:
> [PATCH] libertas: convert GET_LOG to a direct command
> 
> Now uses __lbs_cmd() to get the "log" (it's actually more a snapshot of
> various counters, not a sequential log). Besides the "mechanical" convertion
> the patch add the following logical changes:
> 
> * Removes the priv->logmsg variable, it was only used in one place anyway,
>   also don't blindly get the counters when associating. Getting the
>   counters then the user asks via WEXT for them is good enought.
> * don't set wstats.discard.fragment with log.rxfrag, because the latter is
>   a counter for successfully received packets, not for fragmented packets.
> 
> Signed-off-by: Holger Schurig <hs4233@xxxxxxxxxxxxxxxxxxxx>

Acked-by: Dan Williams <dcbw@xxxxxxxxxx>

> Index: wireless-testing/drivers/net/wireless/libertas/wext.c
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/wext.c	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/wext.c	2008-03-17 11:38:04.000000000 +0100
> @@ -820,6 +821,7 @@ static struct iw_statistics *lbs_get_wir
>  	int stats_valid = 0;
>  	u8 rssi;
>  	u32 tx_retries;
> +	struct cmd_ds_802_11_get_log log;
>  
>  	lbs_deb_enter(LBS_DEB_WEXT);
>  
> @@ -863,7 +865,11 @@ static struct iw_statistics *lbs_get_wir
>  	/* Quality by TX errors */
>  	priv->wstats.discard.retries = priv->stats.tx_errors;
>  
> -	tx_retries = le32_to_cpu(priv->logmsg.retry);
> +	memset(&log, 0, sizeof(log));
> +	log.hdr.size = cpu_to_le16(sizeof(log));
> +	lbs_cmd_with_response(priv, CMD_802_11_GET_LOG, &log);
> +
> +	tx_retries = le32_to_cpu(log.retry);
>  
>  	if (tx_retries > 75)
>  		tx_qual = (90 - tx_retries) * POOR / 15;
> @@ -879,10 +885,9 @@ static struct iw_statistics *lbs_get_wir
>  		    (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
>  	quality = min(quality, tx_qual);
>  
> -	priv->wstats.discard.code = le32_to_cpu(priv->logmsg.wepundecryptable);
> -	priv->wstats.discard.fragment = le32_to_cpu(priv->logmsg.rxfrag);
> +	priv->wstats.discard.code = le32_to_cpu(log.wepundecryptable);
>  	priv->wstats.discard.retries = tx_retries;
> -	priv->wstats.discard.misc = le32_to_cpu(priv->logmsg.ackfailure);
> +	priv->wstats.discard.misc = le32_to_cpu(log.ackfailure);
>  
>  	/* Calculate quality */
>  	priv->wstats.qual.qual = min_t(u8, quality, 100);
> @@ -892,8 +897,6 @@ static struct iw_statistics *lbs_get_wir
>  	/* update stats asynchronously for future calls */
>  	lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
>  					0, 0, NULL);
> -	lbs_prepare_and_send_command(priv, CMD_802_11_GET_LOG, 0,
> -					0, 0, NULL);
>  out:
>  	if (!stats_valid) {
>  		priv->wstats.miss.beacon = 0;
> Index: wireless-testing/drivers/net/wireless/libertas/assoc.c
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/assoc.c	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/assoc.c	2008-03-17 11:21:29.000000000 +0100
> @@ -628,10 +628,6 @@ void lbs_association_worker(struct work_
>  			lbs_prepare_and_send_command(priv,
>  				CMD_802_11_RSSI,
>  				0, CMD_OPTION_WAITFORRSP, 0, NULL);
> -
> -			lbs_prepare_and_send_command(priv,
> -				CMD_802_11_GET_LOG,
> -				0, CMD_OPTION_WAITFORRSP, 0, NULL);
>  		} else {
>  			ret = -1;
>  		}
> Index: wireless-testing/drivers/net/wireless/libertas/cmd.c
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/cmd.c	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/cmd.c	2008-03-17 11:22:06.000000000 +0100
> @@ -454,18 +454,6 @@ static int lbs_cmd_802_11_reset(struct l
>  	return 0;
>  }
>  
> -static int lbs_cmd_802_11_get_log(struct lbs_private *priv,
> -				   struct cmd_ds_command *cmd)
> -{
> -	lbs_deb_enter(LBS_DEB_CMD);
> -	cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
> -	cmd->size =
> -		cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
> -
> -	lbs_deb_leave(LBS_DEB_CMD);
> -	return 0;
> -}
> -
>  static int lbs_cmd_802_11_get_stat(struct lbs_private *priv,
>  				    struct cmd_ds_command *cmd)
>  {
> @@ -1384,10 +1372,6 @@ int lbs_prepare_and_send_command(struct 
>  		ret = lbs_cmd_802_11_reset(priv, cmdptr, cmd_action);
>  		break;
>  
> -	case CMD_802_11_GET_LOG:
> -		ret = lbs_cmd_802_11_get_log(priv, cmdptr);
> -		break;
> -
>  	case CMD_802_11_AUTHENTICATE:
>  		ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
>  		break;
> Index: wireless-testing/drivers/net/wireless/libertas/cmdresp.c
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/cmdresp.c	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/cmdresp.c	2008-03-17 11:21:29.000000000 +0100
> @@ -303,20 +303,6 @@ static int lbs_ret_802_11_eeprom_access(
>  	return 0;
>  }
>  
> -static int lbs_ret_get_log(struct lbs_private *priv,
> -			    struct cmd_ds_command *resp)
> -{
> -	struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog;
> -
> -	lbs_deb_enter(LBS_DEB_CMD);
> -
> -	/* Stored little-endian */
> -	memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log));
> -
> -	lbs_deb_leave(LBS_DEB_CMD);
> -	return 0;
> -}
> -
>  static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
>  					struct cmd_ds_command *resp)
>  {
> @@ -352,10 +338,6 @@ static inline int handle_cmd_response(st
>  		ret = lbs_ret_reg_access(priv, respcmd, resp);
>  		break;
>  
> -	case CMD_RET(CMD_802_11_GET_LOG):
> -		ret = lbs_ret_get_log(priv, resp);
> -		break;
> -
>  	case CMD_RET_802_11_ASSOCIATE:
>  	case CMD_RET(CMD_802_11_ASSOCIATE):
>  	case CMD_RET(CMD_802_11_REASSOCIATE):
> Index: wireless-testing/drivers/net/wireless/libertas/dev.h
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/dev.h	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/dev.h	2008-03-17 11:21:29.000000000 +0100
> @@ -323,8 +323,6 @@ struct lbs_private {
>  	u8 *prdeeprom;
>  	struct lbs_offset_value offsetvalue;
>  
> -	struct cmd_ds_802_11_get_log logmsg;
> -
>  	u32 monitormode;
>  	u8 fw_ready;
>  };
> Index: wireless-testing/drivers/net/wireless/libertas/hostcmd.h
> ===================================================================
> --- wireless-testing.orig/drivers/net/wireless/libertas/hostcmd.h	2008-03-17 11:21:02.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/libertas/hostcmd.h	2008-03-17 11:21:29.000000000 +0100
> @@ -195,6 +195,8 @@ struct cmd_ds_802_11_scan_rsp {
>  };
>  
>  struct cmd_ds_802_11_get_log {
> +	struct cmd_header hdr;
> +
>  	__le32 mcasttxframe;
>  	__le32 failed;
>  	__le32 retry;
> @@ -701,7 +703,6 @@ struct cmd_ds_command {
>  		struct cmd_ds_802_11_ad_hoc_start ads;
>  		struct cmd_ds_802_11_reset reset;
>  		struct cmd_ds_802_11_ad_hoc_result result;
> -		struct cmd_ds_802_11_get_log glog;
>  		struct cmd_ds_802_11_authenticate auth;
>  		struct cmd_ds_802_11_get_stat gstat;
>  		struct cmd_ds_802_3_get_stat gstat_8023;
> 

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