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iwlagn: separate and enhance the fixed rate from

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For testing purpose, we need better control of msc from user application.
Separate the fixed_rate between debugfs and testmode and enforce it.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2011-07-08 08:46:28 -07:00 committed by John W. Linville
parent eedb6e357a
commit 4e30811977
4 changed files with 30 additions and 12 deletions
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28
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View File

@ -336,6 +336,12 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
}
#ifdef CONFIG_MAC80211_DEBUGFS
/**
* Program the device to use fixed rate for frame transmit
* This is for debugging/testing only
* once the device start use fixed rate, we need to reload the module
* to being back the normal operation.
*/
static void rs_program_fix_rate(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta)
{
@ -348,13 +354,15 @@ static void rs_program_fix_rate(struct iwl_priv *priv,
lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->dbg_fixed_rate = priv->dbg_fixed_rate;
/* testmode has higher priority to overwirte the fixed rate */
if (priv->tm_fixed_rate)
lq_sta->dbg_fixed_rate = priv->tm_fixed_rate;
IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
lq_sta->lq.sta_id, priv->dbg_fixed_rate);
lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
if (priv->dbg_fixed_rate) {
rs_fill_link_cmd(NULL, lq_sta, priv->dbg_fixed_rate);
if (lq_sta->dbg_fixed_rate) {
rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
false);
}
@ -1073,7 +1081,8 @@ done:
if (sta && sta->supp_rates[sband->band])
rs_rate_scale_perform(priv, skb, sta, lq_sta);
#ifdef CONFIG_MAC80211_DEBUGFS
if (priv->dbg_fixed_rate != lq_sta->dbg_fixed_rate)
if ((priv->tm_fixed_rate) &&
(priv->tm_fixed_rate != lq_sta->dbg_fixed_rate))
rs_program_fix_rate(priv, lq_sta);
#endif
if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
@ -2896,7 +2905,7 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
lq_sta->is_agg = 0;
priv->dbg_fixed_rate = 0;
priv->tm_fixed_rate = 0;
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->dbg_fixed_rate = 0;
#endif
@ -3095,7 +3104,6 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
} else {
lq_sta->dbg_fixed_rate = 0;
priv->dbg_fixed_rate = 0;
IWL_ERR(priv,
"Invalid antenna selection 0x%X, Valid is 0x%X\n",
ant_sel_tx, valid_tx_ant);
@ -3123,9 +3131,9 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
return -EFAULT;
if (sscanf(buf, "%x", &parsed_rate) == 1)
priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = parsed_rate;
lq_sta->dbg_fixed_rate = parsed_rate;
else
priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = 0;
lq_sta->dbg_fixed_rate = 0;
rs_program_fix_rate(priv, lq_sta);
@ -3155,7 +3163,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
lq_sta->total_failed, lq_sta->total_success,
lq_sta->active_legacy_rate);
desc += sprintf(buff+desc, "fixed rate 0x%X\n",
priv->dbg_fixed_rate);
lq_sta->dbg_fixed_rate);
desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
(priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
(priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",

10
drivers/net/wireless/iwlwifi/iwl-agn-tx.c
View File

@ -436,6 +436,16 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
if (ieee80211_is_data(fc)) {
tx_cmd->initial_rate_index = 0;
tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
if (priv->tm_fixed_rate) {
/*
* rate overwrite by testmode
* we not only send lq command to change rate
* we also re-enforce per data pkt base.
*/
tx_cmd->tx_flags &= ~TX_CMD_FLG_STA_RATE_MSK;
memcpy(&tx_cmd->rate_n_flags, &priv->tm_fixed_rate,
sizeof(tx_cmd->rate_n_flags));
}
return;
}

2
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -1605,7 +1605,7 @@ struct iwl_priv {
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
struct iwl_testmode_trace testmode_trace;
#endif
u32 dbg_fixed_rate;
u32 tm_fixed_rate;
}; /*iwl_priv */

2
drivers/net/wireless/iwlwifi/iwl-sv-open.c
View File

@ -454,7 +454,7 @@ static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
"Error finding fixrate setting\n");
return -ENOMSG;
}
priv->dbg_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
break;
default: