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path: root/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rs.c117
1 files changed, 61 insertions, 56 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index d03b4734c89..592b0cfcf71 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -1,6 +1,6 @@
/******************************************************************************
*
- * Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@@ -115,13 +115,18 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
/* FIXME:RS: ^^ should be INV (legacy) */
};
+static inline u8 rs_extract_rate(u32 rate_n_flags)
+{
+ return (u8)(rate_n_flags & RATE_MCS_RATE_MSK);
+}
+
static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
{
int idx = 0;
/* HT rate format */
if (rate_n_flags & RATE_MCS_HT_MSK) {
- idx = (rate_n_flags & 0xff);
+ idx = rs_extract_rate(rate_n_flags);
if (idx >= IWL_RATE_MIMO3_6M_PLCP)
idx = idx - IWL_RATE_MIMO3_6M_PLCP;
@@ -138,7 +143,8 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
/* legacy rate format, search for match in table */
} else {
for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
- if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
+ if (iwl_rates[idx].plcp ==
+ rs_extract_rate(rate_n_flags))
return idx;
}
@@ -239,11 +245,6 @@ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
#define MCS_INDEX_PER_STREAM (8)
-static inline u8 rs_extract_rate(u32 rate_n_flags)
-{
- return (u8)(rate_n_flags & 0xFF);
-}
-
static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)
{
window->data = 0;
@@ -334,6 +335,32 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
return tid;
}
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void rs_program_fix_rate(struct iwl_priv *priv,
+ struct iwl_lq_sta *lq_sta)
+{
+ struct iwl_station_priv *sta_priv =
+ container_of(lq_sta, struct iwl_station_priv, lq_sta);
+ struct iwl_rxon_context *ctx = sta_priv->common.ctx;
+
+ lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
+ lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ 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;
+
+ IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
+ lq_sta->lq.sta_id, priv->dbg_fixed_rate);
+
+ if (priv->dbg_fixed_rate) {
+ rs_fill_link_cmd(NULL, lq_sta, priv->dbg_fixed_rate);
+ iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
+ false);
+ }
+}
+#endif
+
/*
get the traffic load value for tid
*/
@@ -1045,7 +1072,10 @@ 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);
-
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (priv->dbg_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)
rs_bt_update_lq(priv, ctx, lq_sta);
}
@@ -2169,11 +2199,11 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
* setup rate table in uCode
* return rate_n_flags as used in the table
*/
-static u32 rs_update_rate_tbl(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct iwl_lq_sta *lq_sta,
- struct iwl_scale_tbl_info *tbl,
- int index, u8 is_green)
+static void rs_update_rate_tbl(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx,
+ struct iwl_lq_sta *lq_sta,
+ struct iwl_scale_tbl_info *tbl,
+ int index, u8 is_green)
{
u32 rate;
@@ -2181,8 +2211,6 @@ static u32 rs_update_rate_tbl(struct iwl_priv *priv,
rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
rs_fill_link_cmd(priv, lq_sta, rate);
iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
-
- return rate;
}
/*
@@ -2211,7 +2239,6 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
u8 update_lq = 0;
struct iwl_scale_tbl_info *tbl, *tbl1;
u16 rate_scale_index_msk = 0;
- u32 rate;
u8 is_green = 0;
u8 active_tbl = 0;
u8 done_search = 0;
@@ -2298,8 +2325,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
/* get "active" rate info */
index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
- rate = rs_update_rate_tbl(priv, ctx, lq_sta,
- tbl, index, is_green);
+ rs_update_rate_tbl(priv, ctx, lq_sta, tbl,
+ index, is_green);
}
return;
}
@@ -2540,8 +2567,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
lq_update:
/* Replace uCode's rate table for the destination station. */
if (update_lq)
- rate = rs_update_rate_tbl(priv, ctx, lq_sta,
- tbl, index, is_green);
+ rs_update_rate_tbl(priv, ctx, lq_sta, tbl, index, is_green);
if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI) {
/* Should we stay with this modulation mode,
@@ -2770,16 +2796,13 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
gfp_t gfp)
{
- struct iwl_lq_sta *lq_sta;
struct iwl_station_priv *sta_priv = (struct iwl_station_priv *) sta->drv_priv;
struct iwl_priv *priv;
priv = (struct iwl_priv *)priv_rate;
IWL_DEBUG_RATE(priv, "create station rate scale window\n");
- lq_sta = &sta_priv->lq_sta;
-
- return lq_sta;
+ return &sta_priv->lq_sta;
}
/*
@@ -2873,6 +2896,7 @@ 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;
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->dbg_fixed_rate = 0;
#endif
@@ -2912,7 +2936,8 @@ static void rs_fill_link_cmd(struct iwl_priv *priv,
ant_toggle_cnt = 1;
repeat_rate = IWL_NUMBER_TRY;
} else {
- repeat_rate = IWL_HT_NUMBER_TRY;
+ repeat_rate = min(IWL_HT_NUMBER_TRY,
+ LINK_QUAL_AGG_DISABLE_START_DEF - 1);
}
lq_cmd->general_params.mimo_delimiter =
@@ -3046,7 +3071,6 @@ static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
IWL_DEBUG_RATE(priv, "leave\n");
}
-
#ifdef CONFIG_MAC80211_DEBUGFS
static int open_file_generic(struct inode *inode, struct file *file)
{
@@ -3071,6 +3095,7 @@ 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);
@@ -3087,11 +3112,9 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
struct iwl_lq_sta *lq_sta = file->private_data;
struct iwl_priv *priv;
char buf[64];
- int buf_size;
+ size_t buf_size;
u32 parsed_rate;
- struct iwl_station_priv *sta_priv =
- container_of(lq_sta, struct iwl_station_priv, lq_sta);
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
+
priv = lq_sta->drv;
memset(buf, 0, sizeof(buf));
@@ -3100,23 +3123,11 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
return -EFAULT;
if (sscanf(buf, "%x", &parsed_rate) == 1)
- lq_sta->dbg_fixed_rate = parsed_rate;
+ priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = parsed_rate;
else
- lq_sta->dbg_fixed_rate = 0;
-
- lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
- lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
- 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 */
-
- IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
- lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
+ priv->dbg_fixed_rate = lq_sta->dbg_fixed_rate = 0;
- 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);
- }
+ rs_program_fix_rate(priv, lq_sta);
return count;
}
@@ -3144,7 +3155,7 @@ 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",
- lq_sta->dbg_fixed_rate);
+ priv->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," : "",
@@ -3255,15 +3266,10 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
- char buff[120];
- int desc = 0;
- ssize_t ret;
-
struct iwl_lq_sta *lq_sta = file->private_data;
- struct iwl_priv *priv;
struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
-
- priv = lq_sta->drv;
+ char buff[120];
+ int desc = 0;
if (is_Ht(tbl->lq_type))
desc += sprintf(buff+desc,
@@ -3274,8 +3280,7 @@ static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
"Bit Rate= %d Mb/s\n",
iwl_rates[lq_sta->last_txrate_idx].ieee >> 1);
- ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
- return ret;
+ return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
}
static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-01 18:27:39 +0000