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iwlagn: continue perform rate scale when error detected

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If for some reason, the actual link command not matching neither
active nor search table; instead of return and not performing rate
scale, by-pass the data collection and continue the rate scale process.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-08-03 08:23:32 -07:00 committed by John W. Linville
parent b1a78858c4
commit 80e9158c3f
1 changed files with 17 additions and 3 deletions
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20
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
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@ -82,6 +82,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta);
static void rs_fill_link_cmd(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
static void rs_stay_in_table(struct iwl_lq_sta *lq_sta);
#ifdef CONFIG_MAC80211_DEBUGFS
@ -502,6 +503,7 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags);
u8 mcs;
memset(tbl, 0, sizeof(struct iwl_scale_tbl_info));
*rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags);
if (*rate_idx == IWL_RATE_INVALID) {
@ -848,7 +850,20 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
} else {
IWL_DEBUG_RATE(priv, "Neither active nor search matches tx rate\n");
return;
tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
IWL_DEBUG_RATE(priv, "active- lq:%x, ant:%x, SGI:%d\n",
tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI);
tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
IWL_DEBUG_RATE(priv, "search- lq:%x, ant:%x, SGI:%d\n",
tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI);
IWL_DEBUG_RATE(priv, "actual- lq:%x, ant:%x, SGI:%d\n",
tbl_type.lq_type, tbl_type.ant_type, tbl_type.is_SGI);
/*
* no matching table found, let's by-pass the data collection
* and continue to perform rate scale to find the rate table
*/
rs_stay_in_table(lq_sta);
goto done;
}
/*
@ -909,7 +924,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
}
/* The last TX rate is cached in lq_sta; it's set in if/else above */
lq_sta->last_rate_n_flags = tx_rate;
done:
/* See if there's a better rate or modulation mode to try. */
if (sta && sta->supp_rates[sband->band])
rs_rate_scale_perform(priv, skb, sta, lq_sta);
@ -2598,7 +2613,6 @@ static void rs_fill_link_cmd(struct iwl_priv *priv,
rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
/* Interpret new_rate (rate_n_flags) */
memset(&tbl_type, 0, sizeof(tbl_type));
rs_get_tbl_info_from_mcs(new_rate, lq_sta->band,
&tbl_type, &rate_idx);