/******************************************************************************
*
- * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2008 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
#include <linux/skbuff.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
-#include <net/ieee80211.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/workqueue.h>
-#include "../net/mac80211/ieee80211_rate.h"
+#include "../net/mac80211/rate.h"
-#include "iwl-4965.h"
+#include "iwl-dev.h"
+#include "iwl-core.h"
#include "iwl-helpers.h"
#define RS_NAME "iwl-4965-rs"
-#define NUM_TRY_BEFORE_ANTENNA_TOGGLE 1
+#define NUM_TRY_BEFORE_ANT_TOGGLE 1
#define IWL_NUMBER_TRY 1
#define IWL_HT_NUMBER_TRY 3
IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX
};
-struct iwl4965_rate {
- u32 rate_n_flags;
-} __attribute__ ((packed));
+static const u8 ant_toggle_lookup[] = {
+ /*ANT_NONE -> */ ANT_NONE,
+ /*ANT_A -> */ ANT_B,
+ /*ANT_B -> */ ANT_C,
+ /*ANT_AB -> */ ANT_BC,
+ /*ANT_C -> */ ANT_A,
+ /*ANT_AC -> */ ANT_AB,
+ /*ANT_BC -> */ ANT_AC,
+ /*ANT_ABC -> */ ANT_ABC,
+};
/**
* struct iwl4965_rate_scale_data -- tx success history for one rate
/**
* struct iwl4965_scale_tbl_info -- tx params and success history for all rates
*
- * There are two of these in struct iwl_rate_scale_priv,
+ * There are two of these in struct iwl4965_lq_sta,
* one for "active", and one for "search".
*/
struct iwl4965_scale_tbl_info {
- enum iwl4965_table_type lq_type;
- enum iwl4965_antenna_type antenna_type;
+ enum iwl_table_type lq_type;
+ u8 ant_type;
u8 is_SGI; /* 1 = short guard interval */
u8 is_fat; /* 1 = 40 MHz channel width */
u8 is_dup; /* 1 = duplicated data streams */
u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
- struct iwl4965_rate current_rate; /* rate_n_flags, uCode API format */
+ u32 current_rate; /* rate_n_flags, uCode API format */
struct iwl4965_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
};
+#ifdef CONFIG_IWL4965_HT
+
+struct iwl4965_traffic_load {
+ unsigned long time_stamp; /* age of the oldest statistics */
+ u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
+ * slice */
+ u32 total; /* total num of packets during the
+ * last TID_MAX_TIME_DIFF */
+ u8 queue_count; /* number of queues that has
+ * been used since the last cleanup */
+ u8 head; /* start of the circular buffer */
+};
+
+#endif /* CONFIG_IWL4965_HT */
+
/**
- * struct iwl_rate_scale_priv -- driver's rate scaling private structure
+ * struct iwl4965_lq_sta -- driver's rate scaling private structure
*
* Pointer to this gets passed back and forth between driver and mac80211.
*/
u32 flush_timer; /* time staying in mode before new search */
u8 action_counter; /* # mode-switch actions tried */
- u8 antenna;
- u8 valid_antenna;
u8 is_green;
u8 is_dup;
- u8 phymode;
+ enum ieee80211_band band;
u8 ibss_sta_added;
/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
u32 supp_rates;
- u16 active_rate;
+ u16 active_legacy_rate;
u16 active_siso_rate;
- u16 active_mimo_rate;
+ u16 active_mimo2_rate;
+ u16 active_mimo3_rate;
u16 active_rate_basic;
- struct iwl4965_link_quality_cmd lq;
+ struct iwl_link_quality_cmd lq;
struct iwl4965_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
+#ifdef CONFIG_IWL4965_HT
+ struct iwl4965_traffic_load load[TID_MAX_LOAD_COUNT];
+ u8 tx_agg_tid_en;
+#endif
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_scale_table_file;
struct dentry *rs_sta_dbgfs_stats_table_file;
- struct iwl4965_rate dbg_fixed;
- struct iwl4965_priv *drv;
+#ifdef CONFIG_IWL4965_HT
+ struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
+#endif
+ u32 dbg_fixed_rate;
+ struct iwl_priv *drv;
#endif
};
-static void rs_rate_scale_perform(struct iwl4965_priv *priv,
+static void rs_rate_scale_perform(struct iwl_priv *priv,
struct net_device *dev,
struct ieee80211_hdr *hdr,
struct sta_info *sta);
-static void rs_fill_link_cmd(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *tx_mcs,
- struct iwl4965_link_quality_cmd *tbl);
+static void rs_fill_link_cmd(const struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
+ u32 rate_n_flags);
#ifdef CONFIG_MAC80211_DEBUGFS
static void rs_dbgfs_set_mcs(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *mcs, int index);
+ u32 *rate_n_flags, int index);
#else
static void rs_dbgfs_set_mcs(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *mcs, int index)
+ u32 *rate_n_flags, int index)
{}
#endif
* 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
* "G" is the only table that supports CCK (the first 4 rates).
*/
+/*FIXME:RS:need to spearate tables for MIMO2/MIMO3*/
static s32 expected_tpt_A[IWL_RATE_COUNT] = {
0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186, 186
};
0, 0, 0, 0, 131, 131, 191, 222, 242, 270, 284, 289, 293
};
-static int iwl4965_lq_sync_callback(struct iwl4965_priv *priv,
- struct iwl4965_cmd *cmd, struct sk_buff *skb)
+static inline u8 rs_extract_rate(u32 rate_n_flags)
{
- /*We didn't cache the SKB; let the caller free it */
- return 1;
+ return (u8)(rate_n_flags & 0xFF);
}
-static inline u8 iwl4965_rate_get_rate(u32 rate_n_flags)
+static void rs_rate_scale_clear_window(struct iwl4965_rate_scale_data *window)
{
- return (u8)(rate_n_flags & 0xFF);
+ window->data = 0;
+ window->success_counter = 0;
+ window->success_ratio = IWL_INVALID_VALUE;
+ window->counter = 0;
+ window->average_tpt = IWL_INVALID_VALUE;
+ window->stamp = 0;
}
-static int rs_send_lq_cmd(struct iwl4965_priv *priv,
- struct iwl4965_link_quality_cmd *lq, u8 flags)
+static inline u8 rs_is_valid_ant(u8 valid_antenna, u8 ant_type)
{
-#ifdef CONFIG_IWL4965_DEBUG
- int i;
-#endif
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_TX_LINK_QUALITY_CMD,
- .len = sizeof(struct iwl4965_link_quality_cmd),
- .meta.flags = flags,
- .data = lq,
- };
-
- if ((lq->sta_id == 0xFF) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_IBSS))
- return -EINVAL;
+ return ((ant_type & valid_antenna) == ant_type);
+}
+
+#ifdef CONFIG_IWL4965_HT
+/*
+ * removes the old data from the statistics. All data that is older than
+ * TID_MAX_TIME_DIFF, will be deleted.
+ */
+static void rs_tl_rm_old_stats(struct iwl4965_traffic_load *tl, u32 curr_time)
+{
+ /* The oldest age we want to keep */
+ u32 oldest_time = curr_time - TID_MAX_TIME_DIFF;
+
+ while (tl->queue_count &&
+ (tl->time_stamp < oldest_time)) {
+ tl->total -= tl->packet_count[tl->head];
+ tl->packet_count[tl->head] = 0;
+ tl->time_stamp += TID_QUEUE_CELL_SPACING;
+ tl->queue_count--;
+ tl->head++;
+ if (tl->head >= TID_QUEUE_MAX_SIZE)
+ tl->head = 0;
+ }
+}
- if (lq->sta_id == 0xFF)
- lq->sta_id = IWL_AP_ID;
+/*
+ * increment traffic load value for tid and also remove
+ * any old values if passed the certain time period
+ */
+static void rs_tl_add_packet(struct iwl4965_lq_sta *lq_data, u8 tid)
+{
+ u32 curr_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 index;
+ struct iwl4965_traffic_load *tl = NULL;
- IWL_DEBUG_RATE("lq station id 0x%x\n", lq->sta_id);
- IWL_DEBUG_RATE("lq dta 0x%X 0x%X\n",
- lq->general_params.single_stream_ant_msk,
- lq->general_params.dual_stream_ant_msk);
-#ifdef CONFIG_IWL4965_DEBUG
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
- IWL_DEBUG_RATE("lq index %d 0x%X\n",
- i, lq->rs_table[i].rate_n_flags);
-#endif
+ if (tid >= TID_MAX_LOAD_COUNT)
+ return;
- if (flags & CMD_ASYNC)
- cmd.meta.u.callback = iwl4965_lq_sync_callback;
+ tl = &lq_data->load[tid];
- if (iwl4965_is_associated(priv) && priv->assoc_station_added &&
- priv->lq_mngr.lq_ready)
- return iwl4965_send_cmd(priv, &cmd);
+ curr_time -= curr_time % TID_ROUND_VALUE;
- return 0;
+ /* Happens only for the first packet. Initialize the data */
+ if (!(tl->queue_count)) {
+ tl->total = 1;
+ tl->time_stamp = curr_time;
+ tl->queue_count = 1;
+ tl->head = 0;
+ tl->packet_count[0] = 1;
+ return;
+ }
+
+ time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
+ index = time_diff / TID_QUEUE_CELL_SPACING;
+
+ /* The history is too long: remove data that is older than */
+ /* TID_MAX_TIME_DIFF */
+ if (index >= TID_QUEUE_MAX_SIZE)
+ rs_tl_rm_old_stats(tl, curr_time);
+
+ index = (tl->head + index) % TID_QUEUE_MAX_SIZE;
+ tl->packet_count[index] = tl->packet_count[index] + 1;
+ tl->total = tl->total + 1;
+
+ if ((index + 1) > tl->queue_count)
+ tl->queue_count = index + 1;
}
-static void rs_rate_scale_clear_window(struct iwl4965_rate_scale_data *window)
+/*
+ get the traffic load value for tid
+*/
+static u32 rs_tl_get_load(struct iwl4965_lq_sta *lq_data, u8 tid)
{
- window->data = 0;
- window->success_counter = 0;
- window->success_ratio = IWL_INVALID_VALUE;
- window->counter = 0;
- window->average_tpt = IWL_INVALID_VALUE;
- window->stamp = 0;
+ u32 curr_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 index;
+ struct iwl4965_traffic_load *tl = NULL;
+
+ if (tid >= TID_MAX_LOAD_COUNT)
+ return 0;
+
+ tl = &(lq_data->load[tid]);
+
+ curr_time -= curr_time % TID_ROUND_VALUE;
+
+ if (!(tl->queue_count))
+ return 0;
+
+ time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
+ index = time_diff / TID_QUEUE_CELL_SPACING;
+
+ /* The history is too long: remove data that is older than */
+ /* TID_MAX_TIME_DIFF */
+ if (index >= TID_QUEUE_MAX_SIZE)
+ rs_tl_rm_old_stats(tl, curr_time);
+
+ return tl->total;
+}
+
+static void rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_data, u8 tid,
+ struct sta_info *sta)
+{
+ unsigned long state;
+ DECLARE_MAC_BUF(mac);
+
+ spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+ state = sta->ampdu_mlme.tid_state_tx[tid];
+ spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+ if (state == HT_AGG_STATE_IDLE &&
+ rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
+ IWL_DEBUG_HT("Starting Tx agg: STA: %s tid: %d\n",
+ print_mac(mac, sta->addr), tid);
+ ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
+ }
+}
+
+static void rs_tl_turn_on_agg(struct iwl_priv *priv, u8 tid,
+ struct iwl4965_lq_sta *lq_data,
+ struct sta_info *sta)
+{
+ if ((tid < TID_MAX_LOAD_COUNT))
+ rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
+ else if (tid == IWL_AGG_ALL_TID)
+ for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
+ rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
+}
+
+#endif /* CONFIG_IWLWIFI_HT */
+
+static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
+{
+ return (!!(rate_n_flags & RATE_MCS_ANT_A_MSK) +
+ !!(rate_n_flags & RATE_MCS_ANT_B_MSK) +
+ !!(rate_n_flags & RATE_MCS_ANT_C_MSK));
}
/**
* packets.
*/
static int rs_collect_tx_data(struct iwl4965_rate_scale_data *windows,
- int scale_index, s32 tpt, u32 status)
+ int scale_index, s32 tpt, int retries,
+ int successes)
{
struct iwl4965_rate_scale_data *window = NULL;
- u64 mask;
- u8 win_size = IWL_RATE_MAX_WINDOW;
+ static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1));
s32 fail_count;
if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
* subtract "1" from the success counter (this is the main reason
* we keep these bitmaps!).
*/
- if (window->counter >= win_size) {
- window->counter = win_size - 1;
- mask = 1;
- mask = (mask << (win_size - 1));
- if ((window->data & mask)) {
- window->data &= ~mask;
- window->success_counter = window->success_counter - 1;
+ while (retries > 0) {
+ if (window->counter >= IWL_RATE_MAX_WINDOW) {
+
+ /* remove earliest */
+ window->counter = IWL_RATE_MAX_WINDOW - 1;
+
+ if (window->data & mask) {
+ window->data &= ~mask;
+ window->success_counter--;
+ }
}
- }
- /* Increment frames-attempted counter */
- window->counter = window->counter + 1;
+ /* Increment frames-attempted counter */
+ window->counter++;
+
+ /* Shift bitmap by one frame (throw away oldest history),
+ * OR in "1", and increment "success" if this
+ * frame was successful. */
+ window->data <<= 1;;
+ if (successes > 0) {
+ window->success_counter++;
+ window->data |= 0x1;
+ successes--;
+ }
- /* Shift bitmap by one frame (throw away oldest history),
- * OR in "1", and increment "success" if this frame was successful. */
- mask = window->data;
- window->data = (mask << 1);
- if (status != 0) {
- window->success_counter = window->success_counter + 1;
- window->data |= 0x1;
+ retries--;
}
/* Calculate current success ratio, avoid divide-by-0! */
/*
* Fill uCode API rate_n_flags field, based on "search" or "active" table.
*/
-static void rs_mcs_from_tbl(struct iwl4965_rate *mcs_rate,
- struct iwl4965_scale_tbl_info *tbl,
- int index, u8 use_green)
+/* FIXME:RS:remove this function and put the flags statically in the table */
+static u32 rate_n_flags_from_tbl(struct iwl4965_scale_tbl_info *tbl,
+ int index, u8 use_green)
{
+ u32 rate_n_flags = 0;
+
if (is_legacy(tbl->lq_type)) {
- mcs_rate->rate_n_flags = iwl4965_rates[index].plcp;
+ rate_n_flags = iwl4965_rates[index].plcp;
if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
- mcs_rate->rate_n_flags |= RATE_MCS_CCK_MSK;
+ rate_n_flags |= RATE_MCS_CCK_MSK;
- } else if (is_siso(tbl->lq_type)) {
- if (index > IWL_LAST_OFDM_RATE)
- index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_siso |
- RATE_MCS_HT_MSK;
- } else {
- if (index > IWL_LAST_OFDM_RATE)
+ } else if (is_Ht(tbl->lq_type)) {
+ if (index > IWL_LAST_OFDM_RATE) {
+ IWL_ERROR("invalid HT rate index %d\n", index);
index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_mimo |
- RATE_MCS_HT_MSK;
- }
-
- switch (tbl->antenna_type) {
- case ANT_BOTH:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_AB_MSK;
- break;
- case ANT_MAIN:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_A_MSK;
- break;
- case ANT_AUX:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_B_MSK;
- break;
- case ANT_NONE:
- break;
- }
-
- if (is_legacy(tbl->lq_type))
- return;
+ }
+ rate_n_flags = RATE_MCS_HT_MSK;
- if (tbl->is_fat) {
- if (tbl->is_dup)
- mcs_rate->rate_n_flags |= RATE_MCS_DUP_MSK;
+ if (is_siso(tbl->lq_type))
+ rate_n_flags |= iwl4965_rates[index].plcp_siso;
+ else if (is_mimo2(tbl->lq_type))
+ rate_n_flags |= iwl4965_rates[index].plcp_mimo2;
else
- mcs_rate->rate_n_flags |= RATE_MCS_FAT_MSK;
+ rate_n_flags |= iwl4965_rates[index].plcp_mimo3;
+ } else {
+ IWL_ERROR("Invalid tbl->lq_type %d\n", tbl->lq_type);
}
- if (tbl->is_SGI)
- mcs_rate->rate_n_flags |= RATE_MCS_SGI_MSK;
- if (use_green) {
- mcs_rate->rate_n_flags |= RATE_MCS_GF_MSK;
- if (is_siso(tbl->lq_type))
- mcs_rate->rate_n_flags &= ~RATE_MCS_SGI_MSK;
+ rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
+ RATE_MCS_ANT_ABC_MSK);
+
+ if (is_Ht(tbl->lq_type)) {
+ if (tbl->is_fat) {
+ if (tbl->is_dup)
+ rate_n_flags |= RATE_MCS_DUP_MSK;
+ else
+ rate_n_flags |= RATE_MCS_FAT_MSK;
+ }
+ if (tbl->is_SGI)
+ rate_n_flags |= RATE_MCS_SGI_MSK;
+
+ if (use_green) {
+ rate_n_flags |= RATE_MCS_GF_MSK;
+ if (is_siso(tbl->lq_type) && tbl->is_SGI) {
+ rate_n_flags &= ~RATE_MCS_SGI_MSK;
+ IWL_ERROR("GF was set with SGI:SISO\n");
+ }
+ }
}
+ return rate_n_flags;
}
/*
* Interpret uCode API's rate_n_flags format,
* fill "search" or "active" tx mode table.
*/
-static int rs_get_tbl_info_from_mcs(const struct iwl4965_rate *mcs_rate,
- int phymode, struct iwl4965_scale_tbl_info *tbl,
+static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
+ enum ieee80211_band band,
+ struct iwl4965_scale_tbl_info *tbl,
int *rate_idx)
{
- int index;
- u32 ant_msk;
+ u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK);
+ u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags);
+ u8 mcs;
- index = iwl4965_rate_index_from_plcp(mcs_rate->rate_n_flags);
+ *rate_idx = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
- if (index == IWL_RATE_INVALID) {
+ if (*rate_idx == IWL_RATE_INVALID) {
*rate_idx = -1;
return -EINVAL;
}
tbl->is_SGI = 0; /* default legacy setup */
tbl->is_fat = 0;
tbl->is_dup = 0;
- tbl->antenna_type = ANT_BOTH; /* default MIMO setup */
+ tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
+ tbl->lq_type = LQ_NONE;
/* legacy rate format */
- if (!(mcs_rate->rate_n_flags & RATE_MCS_HT_MSK)) {
- ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
-
- if (ant_msk == RATE_MCS_ANT_AB_MSK)
- tbl->lq_type = LQ_NONE;
- else {
-
- if (phymode == MODE_IEEE80211A)
+ if (!(rate_n_flags & RATE_MCS_HT_MSK)) {
+ if (num_of_ant == 1) {
+ if (band == IEEE80211_BAND_5GHZ)
tbl->lq_type = LQ_A;
else
tbl->lq_type = LQ_G;
-
- if (mcs_rate->rate_n_flags & RATE_MCS_ANT_A_MSK)
- tbl->antenna_type = ANT_MAIN;
- else
- tbl->antenna_type = ANT_AUX;
- }
- *rate_idx = index;
-
- /* HT rate format, SISO (might be 20 MHz legacy or 40 MHz fat width) */
- } else if (iwl4965_rate_get_rate(mcs_rate->rate_n_flags)
- <= IWL_RATE_SISO_60M_PLCP) {
- tbl->lq_type = LQ_SISO;
-
- ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
- if (ant_msk == RATE_MCS_ANT_AB_MSK)
- tbl->lq_type = LQ_NONE;
- else {
- if (mcs_rate->rate_n_flags & RATE_MCS_ANT_A_MSK)
- tbl->antenna_type = ANT_MAIN;
- else
- tbl->antenna_type = ANT_AUX;
}
- if (mcs_rate->rate_n_flags & RATE_MCS_SGI_MSK)
- tbl->is_SGI = 1;
-
- if ((mcs_rate->rate_n_flags & RATE_MCS_FAT_MSK) ||
- (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK))
- tbl->is_fat = 1;
-
- if (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK)
- tbl->is_dup = 1;
-
- *rate_idx = index;
-
- /* HT rate format, MIMO (might be 20 MHz legacy or 40 MHz fat width) */
+ /* HT rate format */
} else {
- tbl->lq_type = LQ_MIMO;
- if (mcs_rate->rate_n_flags & RATE_MCS_SGI_MSK)
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
tbl->is_SGI = 1;
- if ((mcs_rate->rate_n_flags & RATE_MCS_FAT_MSK) ||
- (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK))
+ if ((rate_n_flags & RATE_MCS_FAT_MSK) ||
+ (rate_n_flags & RATE_MCS_DUP_MSK))
tbl->is_fat = 1;
- if (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK)
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
tbl->is_dup = 1;
- *rate_idx = index;
+
+ mcs = rs_extract_rate(rate_n_flags);
+
+ /* SISO */
+ if (mcs <= IWL_RATE_SISO_60M_PLCP) {
+ if (num_of_ant == 1)
+ tbl->lq_type = LQ_SISO; /*else NONE*/
+ /* MIMO2 */
+ } else if (mcs <= IWL_RATE_MIMO2_60M_PLCP) {
+ if (num_of_ant == 2)
+ tbl->lq_type = LQ_MIMO2;
+ /* MIMO3 */
+ } else {
+ if (num_of_ant == 3)
+ tbl->lq_type = LQ_MIMO3;
+ }
}
return 0;
}
-static inline void rs_toggle_antenna(struct iwl4965_rate *new_rate,
- struct iwl4965_scale_tbl_info *tbl)
+/* switch to another antenna/antennas and return 1 */
+/* if no other valid antenna found, return 0 */
+static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
+ struct iwl4965_scale_tbl_info *tbl)
{
- if (tbl->antenna_type == ANT_AUX) {
- tbl->antenna_type = ANT_MAIN;
- new_rate->rate_n_flags &= ~RATE_MCS_ANT_B_MSK;
- new_rate->rate_n_flags |= RATE_MCS_ANT_A_MSK;
- } else {
- tbl->antenna_type = ANT_AUX;
- new_rate->rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
- new_rate->rate_n_flags |= RATE_MCS_ANT_B_MSK;
- }
+ u8 new_ant_type;
+
+ if (!tbl->ant_type || tbl->ant_type > ANT_ABC)
+ return 0;
+
+ if (!rs_is_valid_ant(valid_ant, tbl->ant_type))
+ return 0;
+
+ new_ant_type = ant_toggle_lookup[tbl->ant_type];
+
+ while ((new_ant_type != tbl->ant_type) &&
+ !rs_is_valid_ant(valid_ant, new_ant_type))
+ new_ant_type = ant_toggle_lookup[new_ant_type];
+
+ if (new_ant_type == tbl->ant_type)
+ return 0;
+
+ tbl->ant_type = new_ant_type;
+ *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK;
+ *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS;
+ return 1;
}
-static inline u8 rs_use_green(struct iwl4965_priv *priv,
- struct ieee80211_conf *conf)
+/* FIXME:RS: in 4965 we don't use greenfield at all */
+/* FIXME:RS: don't use greenfield for now in TX */
+/* #ifdef CONFIG_IWL4965_HT */
+#if 0
+static inline u8 rs_use_green(struct iwl_priv *priv, struct ieee80211_conf *conf)
{
-#ifdef CONFIG_IWL4965_HT
return ((conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
priv->current_ht_config.is_green_field &&
!priv->current_ht_config.non_GF_STA_present);
-#endif /* CONFIG_IWL4965_HT */
+}
+#else
+static inline u8 rs_use_green(struct iwl_priv *priv, struct ieee80211_conf *conf)
+{
return 0;
}
+#endif /* CONFIG_IWL4965_HT */
/**
* rs_get_supported_rates - get the available rates
* basic available rates.
*
*/
-static void rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
+static u16 rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
struct ieee80211_hdr *hdr,
- enum iwl4965_table_type rate_type,
- u16 *data_rate)
+ enum iwl_table_type rate_type)
{
- if (is_legacy(rate_type))
- *data_rate = lq_sta->active_rate;
- else {
+ if (hdr && is_multicast_ether_addr(hdr->addr1) &&
+ lq_sta->active_rate_basic)
+ return lq_sta->active_rate_basic;
+
+ if (is_legacy(rate_type)) {
+ return lq_sta->active_legacy_rate;
+ } else {
if (is_siso(rate_type))
- *data_rate = lq_sta->active_siso_rate;
+ return lq_sta->active_siso_rate;
+ else if (is_mimo2(rate_type))
+ return lq_sta->active_mimo2_rate;
else
- *data_rate = lq_sta->active_mimo_rate;
- }
-
- if (hdr && is_multicast_ether_addr(hdr->addr1) &&
- lq_sta->active_rate_basic) {
- *data_rate = lq_sta->active_rate_basic;
+ return lq_sta->active_mimo3_rate;
}
}
return (high << 8) | low;
}
-static void rs_get_lower_rate(struct iwl4965_lq_sta *lq_sta,
+static u32 rs_get_lower_rate(struct iwl4965_lq_sta *lq_sta,
struct iwl4965_scale_tbl_info *tbl, u8 scale_index,
- u8 ht_possible, struct iwl4965_rate *mcs_rate)
+ u8 ht_possible)
{
s32 low;
u16 rate_mask;
if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_index)) {
switch_to_legacy = 1;
scale_index = rs_ht_to_legacy[scale_index];
- if (lq_sta->phymode == MODE_IEEE80211A)
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
tbl->lq_type = LQ_A;
else
tbl->lq_type = LQ_G;
- if ((tbl->antenna_type == ANT_BOTH) ||
- (tbl->antenna_type == ANT_NONE))
- tbl->antenna_type = ANT_MAIN;
+ if (num_of_ant(tbl->ant_type) > 1)
+ tbl->ant_type = ANT_A;/*FIXME:RS*/
tbl->is_fat = 0;
tbl->is_SGI = 0;
}
- rs_get_supported_rates(lq_sta, NULL, tbl->lq_type, &rate_mask);
+ rate_mask = rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
/* Mask with station rate restriction */
if (is_legacy(tbl->lq_type)) {
/* supp_rates has no CCK bits in A mode */
- if (lq_sta->phymode == (u8) MODE_IEEE80211A)
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
rate_mask = (u16)(rate_mask &
(lq_sta->supp_rates << IWL_FIRST_OFDM_RATE));
else
/* If we switched from HT to legacy, check current rate */
if (switch_to_legacy && (rate_mask & (1 << scale_index))) {
- rs_mcs_from_tbl(mcs_rate, tbl, scale_index, is_green);
- return;
+ low = scale_index;
+ goto out;
}
high_low = rs_get_adjacent_rate(scale_index, rate_mask, tbl->lq_type);
low = high_low & 0xff;
- if (low != IWL_RATE_INVALID)
- rs_mcs_from_tbl(mcs_rate, tbl, low, is_green);
- else
- rs_mcs_from_tbl(mcs_rate, tbl, scale_index, is_green);
+ if (low == IWL_RATE_INVALID)
+ low = scale_index;
+
+out:
+ return rate_n_flags_from_tbl(tbl, low, is_green);
}
/*
u8 retries;
int rs_index, index = 0;
struct iwl4965_lq_sta *lq_sta;
- struct iwl4965_link_quality_cmd *table;
+ struct iwl_link_quality_cmd *table;
struct sta_info *sta;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
+ struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = local_to_hw(local);
struct iwl4965_rate_scale_data *window = NULL;
struct iwl4965_rate_scale_data *search_win = NULL;
- struct iwl4965_rate tx_mcs;
+ u32 tx_rate;
struct iwl4965_scale_tbl_info tbl_type;
struct iwl4965_scale_tbl_info *curr_tbl, *search_tbl;
u8 active_index = 0;
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
return;
+ /* This packet was aggregated but doesn't carry rate scale info */
+ if ((tx_resp->control.flags & IEEE80211_TXCTL_AMPDU) &&
+ !(tx_resp->flags & IEEE80211_TX_STATUS_AMPDU))
+ return;
+
retries = tx_resp->retry_count;
if (retries > 15)
retries = 15;
+ rcu_read_lock();
sta = sta_info_get(local, hdr->addr1);
- if (!sta || !sta->rate_ctrl_priv) {
- if (sta)
- sta_info_put(sta);
- return;
- }
+ if (!sta || !sta->rate_ctrl_priv)
+ goto out;
+
lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
if (!priv->lq_mngr.lq_ready)
- return;
+ goto out;
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
!lq_sta->ibss_sta_added)
- return;
+ goto out;
table = &lq_sta->lq;
active_index = lq_sta->active_tbl;
- /* Get mac80211 antenna info */
- lq_sta->antenna =
- (lq_sta->valid_antenna & local->hw.conf.antenna_sel_tx);
- if (!lq_sta->antenna)
- lq_sta->antenna = lq_sta->valid_antenna;
-
- /* Ignore mac80211 antenna info for now */
- lq_sta->antenna = lq_sta->valid_antenna;
-
curr_tbl = &(lq_sta->lq_info[active_index]);
search_tbl = &(lq_sta->lq_info[(1 - active_index)]);
window = (struct iwl4965_rate_scale_data *)
search_win = (struct iwl4965_rate_scale_data *)
&(search_tbl->win[0]);
- tx_mcs.rate_n_flags = tx_resp->control.tx_rate;
-
- rs_get_tbl_info_from_mcs(&tx_mcs, priv->phymode,
- &tbl_type, &rs_index);
- if ((rs_index < 0) || (rs_index >= IWL_RATE_COUNT)) {
- IWL_DEBUG_RATE("bad rate index at: %d rate 0x%X\n",
- rs_index, tx_mcs.rate_n_flags);
- sta_info_put(sta);
- return;
- }
-
/*
* Ignore this Tx frame response if its initial rate doesn't match
* that of latest Link Quality command. There may be stragglers
* to check "search" mode, or a prior "search" mode after we've moved
* to a new "search" mode (which might become the new "active" mode).
*/
- if (retries &&
- (tx_mcs.rate_n_flags !=
- le32_to_cpu(table->rs_table[0].rate_n_flags))) {
- IWL_DEBUG_RATE("initial rate does not match 0x%x 0x%x\n",
- tx_mcs.rate_n_flags,
- le32_to_cpu(table->rs_table[0].rate_n_flags));
- sta_info_put(sta);
- return;
+ tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
+ rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, &rs_index);
+ if (priv->band == IEEE80211_BAND_5GHZ)
+ rs_index -= IWL_FIRST_OFDM_RATE;
+
+ if ((tx_resp->control.tx_rate == NULL) ||
+ (tbl_type.is_SGI ^
+ !!(tx_resp->control.flags & IEEE80211_TXCTL_SHORT_GI)) ||
+ (tbl_type.is_fat ^
+ !!(tx_resp->control.flags & IEEE80211_TXCTL_40_MHZ_WIDTH)) ||
+ (tbl_type.is_dup ^
+ !!(tx_resp->control.flags & IEEE80211_TXCTL_DUP_DATA)) ||
+ (tbl_type.ant_type ^ tx_resp->control.antenna_sel_tx) ||
+ (!!(tx_rate & RATE_MCS_HT_MSK) ^
+ !!(tx_resp->control.flags & IEEE80211_TXCTL_OFDM_HT)) ||
+ (!!(tx_rate & RATE_MCS_GF_MSK) ^
+ !!(tx_resp->control.flags & IEEE80211_TXCTL_GREEN_FIELD)) ||
+ (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
+ tx_resp->control.tx_rate->bitrate)) {
+ IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate);
+ goto out;
}
/* Update frame history window with "failure" for each Tx retry. */
while (retries) {
/* Look up the rate and other info used for each tx attempt.
* Each tx attempt steps one entry deeper in the rate table. */
- tx_mcs.rate_n_flags =
- le32_to_cpu(table->rs_table[index].rate_n_flags);
- rs_get_tbl_info_from_mcs(&tx_mcs, priv->phymode,
+ tx_rate = le32_to_cpu(table->rs_table[index].rate_n_flags);
+ rs_get_tbl_info_from_mcs(tx_rate, priv->band,
&tbl_type, &rs_index);
/* If type matches "search" table,
* add failure to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
- (tbl_type.antenna_type == search_tbl->antenna_type) &&
+ (tbl_type.ant_type == search_tbl->ant_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
if (search_tbl->expected_tpt)
tpt = search_tbl->expected_tpt[rs_index];
else
tpt = 0;
- rs_collect_tx_data(search_win, rs_index, tpt, 0);
+ rs_collect_tx_data(search_win, rs_index, tpt, 1, 0);
/* Else if type matches "current/active" table,
* add failure to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
- (tbl_type.antenna_type == curr_tbl->antenna_type) &&
+ (tbl_type.ant_type == curr_tbl->ant_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
if (curr_tbl->expected_tpt)
tpt = curr_tbl->expected_tpt[rs_index];
else
tpt = 0;
- rs_collect_tx_data(window, rs_index, tpt, 0);
+ rs_collect_tx_data(window, rs_index, tpt, 1, 0);
}
/* If not searching for a new mode, increment failed counter
* if Tx was successful first try, use original rate,
* else look up the rate that was, finally, successful.
*/
- if (!tx_resp->retry_count)
- tx_mcs.rate_n_flags = tx_resp->control.tx_rate;
- else
- tx_mcs.rate_n_flags =
- le32_to_cpu(table->rs_table[index].rate_n_flags);
-
- rs_get_tbl_info_from_mcs(&tx_mcs, priv->phymode,
- &tbl_type, &rs_index);
+ tx_rate = le32_to_cpu(table->rs_table[index].rate_n_flags);
+ rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, &rs_index);
/* Update frame history window with "success" if Tx got ACKed ... */
if (tx_resp->flags & IEEE80211_TX_STATUS_ACK)
/* If type matches "search" table,
* add final tx status to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
- (tbl_type.antenna_type == search_tbl->antenna_type) &&
+ (tbl_type.ant_type == search_tbl->ant_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
if (search_tbl->expected_tpt)
tpt = search_tbl->expected_tpt[rs_index];
else
tpt = 0;
- rs_collect_tx_data(search_win,
- rs_index, tpt, status);
-
+ if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU)
+ rs_collect_tx_data(search_win, rs_index, tpt,
+ tx_resp->ampdu_ack_len,
+ tx_resp->ampdu_ack_map);
+ else
+ rs_collect_tx_data(search_win, rs_index, tpt,
+ 1, status);
/* Else if type matches "current/active" table,
* add final tx status to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
- (tbl_type.antenna_type == curr_tbl->antenna_type) &&
+ (tbl_type.ant_type == curr_tbl->ant_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
if (curr_tbl->expected_tpt)
tpt = curr_tbl->expected_tpt[rs_index];
else
tpt = 0;
- rs_collect_tx_data(window, rs_index, tpt, status);
+ if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU)
+ rs_collect_tx_data(window, rs_index, tpt,
+ tx_resp->ampdu_ack_len,
+ tx_resp->ampdu_ack_map);
+ else
+ rs_collect_tx_data(window, rs_index, tpt,
+ 1, status);
}
/* If not searching for new mode, increment success/failed counter
* ... these help determine when to start searching again */
if (lq_sta->stay_in_tbl) {
- if (status)
- lq_sta->total_success++;
- else
- lq_sta->total_failed++;
+ if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU) {
+ lq_sta->total_success += tx_resp->ampdu_ack_map;
+ lq_sta->total_failed +=
+ (tx_resp->ampdu_ack_len - tx_resp->ampdu_ack_map);
+ } else {
+ if (status)
+ lq_sta->total_success++;
+ else
+ lq_sta->total_failed++;
+ }
}
/* See if there's a better rate or modulation mode to try. */
rs_rate_scale_perform(priv, dev, hdr, sta);
- sta_info_put(sta);
+out:
+ rcu_read_unlock();
return;
}
-static u8 rs_is_ant_connected(u8 valid_antenna,
- enum iwl4965_antenna_type antenna_type)
-{
- if (antenna_type == ANT_AUX)
- return ((valid_antenna & 0x2) ? 1:0);
- else if (antenna_type == ANT_MAIN)
- return ((valid_antenna & 0x1) ? 1:0);
- else if (antenna_type == ANT_BOTH)
- return ((valid_antenna & 0x3) == 0x3);
-
- return 1;
-}
-
-static u8 rs_is_other_ant_connected(u8 valid_antenna,
- enum iwl4965_antenna_type antenna_type)
-{
- if (antenna_type == ANT_AUX)
- return rs_is_ant_connected(valid_antenna, ANT_MAIN);
- else
- return rs_is_ant_connected(valid_antenna, ANT_AUX);
-
- return 0;
-}
-
/*
* Begin a period of staying with a selected modulation mode.
* Set "stay_in_tbl" flag to prevent any mode switches.
static void rs_set_stay_in_table(u8 is_legacy,
struct iwl4965_lq_sta *lq_sta)
{
- IWL_DEBUG_HT("we are staying in the same table\n");
+ IWL_DEBUG_RATE("we are staying in the same table\n");
lq_sta->stay_in_tbl = 1; /* only place this gets set */
if (is_legacy) {
lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
/*
* Find correct throughput table for given mode of modulation
*/
-static void rs_get_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
+static void rs_set_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
struct iwl4965_scale_tbl_info *tbl)
{
if (is_legacy(tbl->lq_type)) {
else
tbl->expected_tpt = expected_tpt_siso20MHz;
- } else if (is_mimo(tbl->lq_type)) {
+ } else if (is_mimo(tbl->lq_type)) { /* FIXME:need to separate mimo2/3 */
if (tbl->is_fat && !lq_sta->is_dup)
if (tbl->is_SGI)
tbl->expected_tpt = expected_tpt_mimo40MHzSGI;
* to decrease to match "active" throughput. When moving from MIMO to SISO,
* bit rate will typically need to increase, but not if performance was bad.
*/
-static s32 rs_get_best_rate(struct iwl4965_priv *priv,
+static s32 rs_get_best_rate(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct iwl4965_scale_tbl_info *tbl, /* "search" */
- u16 rate_mask, s8 index, s8 rate)
+ u16 rate_mask, s8 index)
{
/* "active" values */
struct iwl4965_scale_tbl_info *active_tbl =
s32 new_rate, high, low, start_hi;
u16 high_low;
+ s8 rate = index;
new_rate = high = low = start_hi = IWL_RATE_INVALID;
}
#endif /* CONFIG_IWL4965_HT */
-static inline u8 rs_is_both_ant_supp(u8 valid_antenna)
-{
- return (rs_is_ant_connected(valid_antenna, ANT_BOTH));
-}
-
/*
* Set up search table for MIMO
*/
-static int rs_switch_to_mimo(struct iwl4965_priv *priv,
+#ifdef CONFIG_IWL4965_HT
+static int rs_switch_to_mimo2(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
struct iwl4965_scale_tbl_info *tbl, int index)
{
-#ifdef CONFIG_IWL4965_HT
u16 rate_mask;
s32 rate;
s8 is_green = lq_sta->is_green;
!sta->ht_info.ht_supported)
return -1;
- IWL_DEBUG_HT("LQ: try to switch to MIMO\n");
- tbl->lq_type = LQ_MIMO;
- rs_get_supported_rates(lq_sta, NULL, tbl->lq_type,
- &rate_mask);
-
if (priv->current_ht_config.tx_mimo_ps_mode == IWL_MIMO_PS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */
- if (!rs_is_both_ant_supp(lq_sta->antenna))
+ if (priv->hw_params.tx_chains_num < 2)
return -1;
+ IWL_DEBUG_RATE("LQ: try to switch to MIMO2\n");
+
+ tbl->lq_type = LQ_MIMO2;
tbl->is_dup = lq_sta->is_dup;
tbl->action = 0;
+ rate_mask = lq_sta->active_mimo2_rate;
+
if (priv->current_ht_config.supported_chan_width
- == IWL_CHANNEL_WIDTH_40MHZ)
+ == IWL_CHANNEL_WIDTH_40MHZ)
tbl->is_fat = 1;
else
tbl->is_fat = 0;
+ /* FIXME: - don't toggle SGI here
if (tbl->is_fat) {
if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
tbl->is_SGI = 1;
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
+ */
- rs_get_expected_tpt_table(lq_sta, tbl);
+ rs_set_expected_tpt_table(lq_sta, tbl);
- rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
+ rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_HT("LQ: MIMO best rate %d mask %X\n", rate, rate_mask);
- if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask))
+ IWL_DEBUG_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
+
+ if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
+ IWL_DEBUG_RATE("Can't switch with index %d rate mask %x\n",
+ rate, rate_mask);
return -1;
- rs_mcs_from_tbl(&tbl->current_rate, tbl, rate, is_green);
+ }
+ tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
- IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
- tbl->current_rate.rate_n_flags, is_green);
+ IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
+ tbl->current_rate, is_green);
return 0;
+}
#else
+static int rs_switch_to_mimo2(struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
+ struct iwl4965_scale_tbl_info *tbl, int index)
+{
return -1;
-#endif /*CONFIG_IWL4965_HT */
}
+#endif /*CONFIG_IWL4965_HT */
/*
* Set up search table for SISO
*/
-static int rs_switch_to_siso(struct iwl4965_priv *priv,
+static int rs_switch_to_siso(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
u8 is_green = lq_sta->is_green;
s32 rate;
- IWL_DEBUG_HT("LQ: try to switch to SISO\n");
if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
!sta->ht_info.ht_supported)
return -1;
+ IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
+
tbl->is_dup = lq_sta->is_dup;
tbl->lq_type = LQ_SISO;
tbl->action = 0;
- rs_get_supported_rates(lq_sta, NULL, tbl->lq_type,
- &rate_mask);
+ rate_mask = lq_sta->active_siso_rate;
if (priv->current_ht_config.supported_chan_width
== IWL_CHANNEL_WIDTH_40MHZ)
else
tbl->is_fat = 0;
+ /* FIXME: - don't toggle SGI here
if (tbl->is_fat) {
if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
tbl->is_SGI = 1;
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
+ */
if (is_green)
- tbl->is_SGI = 0;
+ tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
- rs_get_expected_tpt_table(lq_sta, tbl);
- rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
+ rs_set_expected_tpt_table(lq_sta, tbl);
+ rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_HT("LQ: get best rate %d mask %X\n", rate, rate_mask);
+ IWL_DEBUG_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_HT("can not switch with index %d rate mask %x\n",
+ IWL_DEBUG_RATE("can not switch with index %d rate mask %x\n",
rate, rate_mask);
return -1;
}
- rs_mcs_from_tbl(&tbl->current_rate, tbl, rate, is_green);
- IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
- tbl->current_rate.rate_n_flags, is_green);
+ tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
+ IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
+ tbl->current_rate, is_green);
return 0;
#else
return -1;
-
-#endif /*CONFIG_IWL4965_HT */
+#endif /*CONFIG_IWL4965_HT */
}
/*
* Try to switch to new modulation mode from legacy
*/
-static int rs_move_legacy_other(struct iwl4965_priv *priv,
+static int rs_move_legacy_other(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
int index)
{
- int ret = 0;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
struct iwl4965_scale_tbl_info *search_tbl =
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+ int ret = 0;
for (; ;) {
switch (tbl->action) {
case IWL_LEGACY_SWITCH_ANTENNA:
- IWL_DEBUG_HT("LQ Legacy switch Antenna\n");
+ IWL_DEBUG_RATE("LQ: Legacy toggle Antenna\n");
- search_tbl->lq_type = LQ_NONE;
lq_sta->action_counter++;
/* Don't change antenna if success has been great */
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
- /* Don't change antenna if other one is not connected */
- if (!rs_is_other_ant_connected(lq_sta->antenna,
- tbl->antenna_type))
- break;
-
/* Set up search table to try other antenna */
memcpy(search_tbl, tbl, sz);
- rs_toggle_antenna(&(search_tbl->current_rate),
- search_tbl);
- rs_get_expected_tpt_table(lq_sta, search_tbl);
- lq_sta->search_better_tbl = 1;
- goto out;
+ if (rs_toggle_antenna(valid_tx_ant,
+ &search_tbl->current_rate, search_tbl)) {
+ lq_sta->search_better_tbl = 1;
+ goto out;
+ }
case IWL_LEGACY_SWITCH_SISO:
- IWL_DEBUG_HT("LQ: Legacy switch to SISO\n");
+ IWL_DEBUG_RATE("LQ: Legacy switch to SISO\n");
/* Set up search table to try SISO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_SISO;
search_tbl->is_SGI = 0;
- search_tbl->is_fat = 0;
ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
search_tbl, index);
if (!ret) {
}
break;
- case IWL_LEGACY_SWITCH_MIMO:
- IWL_DEBUG_HT("LQ: Legacy switch MIMO\n");
+ case IWL_LEGACY_SWITCH_MIMO2:
+ IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n");
/* Set up search table to try MIMO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
search_tbl->is_SGI = 0;
- search_tbl->is_fat = 0;
- search_tbl->antenna_type = ANT_BOTH;
- ret = rs_switch_to_mimo(priv, lq_sta, conf, sta,
+ search_tbl->ant_type = ANT_AB;/*FIXME:RS*/
+ /*FIXME:RS:need to check ant validity*/
+ ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
search_tbl, index);
if (!ret) {
lq_sta->search_better_tbl = 1;
break;
}
tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO)
+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
if (tbl->action == start_action)
out:
tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO)
+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
return 0;
/*
* Try to switch to new modulation mode from SISO
*/
-static int rs_move_siso_to_other(struct iwl4965_priv *priv,
+static int rs_move_siso_to_other(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
int index)
{
- int ret;
u8 is_green = lq_sta->is_green;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+ int ret;
for (;;) {
lq_sta->action_counter++;
switch (tbl->action) {
case IWL_SISO_SWITCH_ANTENNA:
- IWL_DEBUG_HT("LQ: SISO SWITCH ANTENNA SISO\n");
- search_tbl->lq_type = LQ_NONE;
+ IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n");
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
- if (!rs_is_other_ant_connected(lq_sta->antenna,
- tbl->antenna_type))
- break;
memcpy(search_tbl, tbl, sz);
- search_tbl->action = IWL_SISO_SWITCH_MIMO;
- rs_toggle_antenna(&(search_tbl->current_rate),
- search_tbl);
- lq_sta->search_better_tbl = 1;
-
- goto out;
+ if (rs_toggle_antenna(valid_tx_ant,
+ &search_tbl->current_rate, search_tbl)) {
+ lq_sta->search_better_tbl = 1;
+ goto out;
+ }
- case IWL_SISO_SWITCH_MIMO:
- IWL_DEBUG_HT("LQ: SISO SWITCH TO MIMO FROM SISO\n");
+ case IWL_SISO_SWITCH_MIMO2:
+ IWL_DEBUG_RATE("LQ: SISO switch to MIMO\n");
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
search_tbl->is_SGI = 0;
- search_tbl->is_fat = 0;
- search_tbl->antenna_type = ANT_BOTH;
- ret = rs_switch_to_mimo(priv, lq_sta, conf, sta,
+ search_tbl->ant_type = ANT_AB; /*FIXME:RS*/
+ ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
search_tbl, index);
if (!ret) {
lq_sta->search_better_tbl = 1;
}
break;
case IWL_SISO_SWITCH_GI:
- IWL_DEBUG_HT("LQ: SISO SWITCH TO GI\n");
+ IWL_DEBUG_RATE("LQ: SISO toggle SGI/NGI\n");
+
memcpy(search_tbl, tbl, sz);
- search_tbl->action = 0;
- if (search_tbl->is_SGI)
- search_tbl->is_SGI = 0;
- else if (!is_green)
- search_tbl->is_SGI = 1;
- else
- break;
- lq_sta->search_better_tbl = 1;
- if ((tbl->lq_type == LQ_SISO) &&
- (tbl->is_SGI)) {
+ if (is_green) {
+ if (!tbl->is_SGI)
+ break;
+ else
+ IWL_ERROR("SGI was set in GF+SISO\n");
+ }
+ search_tbl->is_SGI = !tbl->is_SGI;
+ rs_set_expected_tpt_table(lq_sta, search_tbl);
+ if (tbl->is_SGI) {
s32 tpt = lq_sta->last_tpt / 100;
- if (((!tbl->is_fat) &&
- (tpt >= expected_tpt_siso20MHz[index])) ||
- ((tbl->is_fat) &&
- (tpt >= expected_tpt_siso40MHz[index])))
- lq_sta->search_better_tbl = 0;
+ if (tpt >= search_tbl->expected_tpt[index])
+ break;
}
- rs_get_expected_tpt_table(lq_sta, search_tbl);
- rs_mcs_from_tbl(&search_tbl->current_rate,
- search_tbl, index, is_green);
+ search_tbl->current_rate = rate_n_flags_from_tbl(
+ search_tbl, index, is_green);
+ lq_sta->search_better_tbl = 1;
goto out;
}
tbl->action++;
/*
* Try to switch to new modulation mode from MIMO
*/
-static int rs_move_mimo_to_other(struct iwl4965_priv *priv,
+static int rs_move_mimo_to_other(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
int index)
{
- int ret;
s8 is_green = lq_sta->is_green;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ /*u8 valid_tx_ant = priv->hw_params.valid_tx_ant;*/
+ int ret;
for (;;) {
lq_sta->action_counter++;
switch (tbl->action) {
case IWL_MIMO_SWITCH_ANTENNA_A:
case IWL_MIMO_SWITCH_ANTENNA_B:
- IWL_DEBUG_HT("LQ: MIMO SWITCH TO SISO\n");
+ IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n");
/* Set up new search table for SISO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_SISO;
- search_tbl->is_SGI = 0;
- search_tbl->is_fat = 0;
+
+ /*FIXME:RS:need to check ant validity + C*/
if (tbl->action == IWL_MIMO_SWITCH_ANTENNA_A)
- search_tbl->antenna_type = ANT_MAIN;
+ search_tbl->ant_type = ANT_A;
else
- search_tbl->antenna_type = ANT_AUX;
+ search_tbl->ant_type = ANT_B;
ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
search_tbl, index);
break;
case IWL_MIMO_SWITCH_GI:
- IWL_DEBUG_HT("LQ: MIMO SWITCH TO GI\n");
+ IWL_DEBUG_RATE("LQ: MIMO toggle SGI/NGI\n");
/* Set up new search table for MIMO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
- search_tbl->antenna_type = ANT_BOTH;
- search_tbl->action = 0;
- if (search_tbl->is_SGI)
- search_tbl->is_SGI = 0;
- else
- search_tbl->is_SGI = 1;
- lq_sta->search_better_tbl = 1;
-
+ search_tbl->is_SGI = !tbl->is_SGI;
+ rs_set_expected_tpt_table(lq_sta, search_tbl);
/*
* If active table already uses the fastest possible
* modulation (dual stream with short guard interval),
* and it's working well, there's no need to look
* for a better type of modulation!
*/
- if ((tbl->lq_type == LQ_MIMO) &&
- (tbl->is_SGI)) {
+ if (tbl->is_SGI) {
s32 tpt = lq_sta->last_tpt / 100;
- if (((!tbl->is_fat) &&
- (tpt >= expected_tpt_mimo20MHz[index])) ||
- ((tbl->is_fat) &&
- (tpt >= expected_tpt_mimo40MHz[index])))
- lq_sta->search_better_tbl = 0;
+ if (tpt >= search_tbl->expected_tpt[index])
+ break;
}
- rs_get_expected_tpt_table(lq_sta, search_tbl);
- rs_mcs_from_tbl(&search_tbl->current_rate,
- search_tbl, index, is_green);
+ search_tbl->current_rate = rate_n_flags_from_tbl(
+ search_tbl, index, is_green);
+ lq_sta->search_better_tbl = 1;
goto out;
}
(unsigned long)(lq_sta->flush_timer +
IWL_RATE_SCALE_FLUSH_INTVL));
- /* For now, disable the elapsed time criterion */
- flush_interval_passed = 0;
-
/*
* Check if we should allow search for new modulation mode.
* If many frames have failed or succeeded, or we've used
(lq_sta->total_success > lq_sta->max_success_limit) ||
((!lq_sta->search_better_tbl) && (lq_sta->flush_timer)
&& (flush_interval_passed))) {
- IWL_DEBUG_HT("LQ: stay is expired %d %d %d\n:",
+ IWL_DEBUG_RATE("LQ: stay is expired %d %d %d\n:",
lq_sta->total_failed,
lq_sta->total_success,
flush_interval_passed);
lq_sta->table_count_limit) {
lq_sta->table_count = 0;
- IWL_DEBUG_HT("LQ: stay in table clear win\n");
+ IWL_DEBUG_RATE("LQ: stay in table clear win\n");
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(
&(tbl->win[i]));
/*
* Do rate scaling and search for new modulation mode.
*/
-static void rs_rate_scale_perform(struct iwl4965_priv *priv,
+static void rs_rate_scale_perform(struct iwl_priv *priv,
struct net_device *dev,
struct ieee80211_hdr *hdr,
struct sta_info *sta)
struct iwl4965_lq_sta *lq_sta;
struct iwl4965_scale_tbl_info *tbl, *tbl1;
u16 rate_scale_index_msk = 0;
- struct iwl4965_rate mcs_rate;
+ u32 rate;
u8 is_green = 0;
u8 active_tbl = 0;
u8 done_search = 0;
u16 high_low;
+#ifdef CONFIG_IWL4965_HT
+ u8 tid = MAX_TID_COUNT;
+ __le16 *qc;
+#endif
IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
}
lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
+#ifdef CONFIG_IWL4965_HT
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc) {
+ tid = (u8)(le16_to_cpu(*qc) & 0xf);
+ rs_tl_add_packet(lq_sta, tid);
+ }
+#endif
/*
* Select rate-scale / modulation-mode table to work with in
* the rest of this function: "search" if searching for better
is_green = lq_sta->is_green;
/* current tx rate */
- index = sta->last_txrate;
+ index = sta->last_txrate_idx;
IWL_DEBUG_RATE("Rate scale index %d for type %d\n", index,
tbl->lq_type);
/* rates available for this association, and for modulation mode */
- rs_get_supported_rates(lq_sta, hdr, tbl->lq_type,
- &rate_mask);
+ rate_mask = rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
IWL_DEBUG_RATE("mask 0x%04X \n", rate_mask);
/* mask with station rate restriction */
if (is_legacy(tbl->lq_type)) {
- if (lq_sta->phymode == (u8) MODE_IEEE80211A)
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
/* supp_rates has no CCK bits in A mode */
rate_scale_index_msk = (u16) (rate_mask &
(lq_sta->supp_rates << IWL_FIRST_OFDM_RATE));
if (!rate_scale_index_msk)
rate_scale_index_msk = rate_mask;
- /* If current rate is no longer supported on current association,
- * or user changed preferences for rates, find a new supported rate. */
- if (index < 0 || !((1 << index) & rate_scale_index_msk)) {
- index = IWL_INVALID_VALUE;
- update_lq = 1;
-
- /* get the highest available rate */
- for (i = 0; i <= IWL_RATE_COUNT; i++) {
- if ((1 << i) & rate_scale_index_msk)
- index = i;
- }
-
- if (index == IWL_INVALID_VALUE) {
- IWL_WARNING("Can not find a suitable rate\n");
- return;
- }
+ if (!((1 << index) & rate_scale_index_msk)) {
+ IWL_ERROR("Current Rate is not valid\n");
+ return;
}
/* Get expected throughput table and history window for current rate */
- if (!tbl->expected_tpt)
- rs_get_expected_tpt_table(lq_sta, tbl);
+ if (!tbl->expected_tpt) {
+ IWL_ERROR("tbl->expected_tpt is NULL\n");
+ return;
+ }
window = &(tbl->win[index]);
* in current association (use new rate found above).
*/
fail_count = window->counter - window->success_counter;
- if (((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
- (window->success_counter < IWL_RATE_MIN_SUCCESS_TH))
- || (tbl->expected_tpt == NULL)) {
- IWL_DEBUG_RATE("LQ: still below TH succ %d total %d "
+ if ((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
+ (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) {
+ IWL_DEBUG_RATE("LQ: still below TH. succ=%d total=%d "
"for index %d\n",
window->success_counter, window->counter, index);
* or search for a new one? */
rs_stay_in_table(lq_sta);
- /* Set up new rate table in uCode, if needed */
- if (update_lq) {
- rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
- rs_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
- }
goto out;
/* Else we have enough samples; calculate estimate of
* actual average throughput */
- } else
- window->average_tpt = ((window->success_ratio *
+ } else {
+ /*FIXME:RS remove this else if we don't get this error*/
+ if (window->average_tpt != ((window->success_ratio *
+ tbl->expected_tpt[index] + 64) / 128)) {
+ IWL_ERROR("expected_tpt should have been calculated"
+ " by now\n");
+ window->average_tpt = ((window->success_ratio *
tbl->expected_tpt[index] + 64) / 128);
+ }
+ }
/* If we are searching for better modulation mode, check success. */
if (lq_sta->search_better_tbl) {
- int success_limit = IWL_RATE_SCALE_SWITCH;
/* If good success, continue using the "search" mode;
* no need to send new link quality command, since we're
* continuing to use the setup that we've been trying. */
- if ((window->success_ratio > success_limit) ||
- (window->average_tpt > lq_sta->last_tpt)) {
- if (!is_legacy(tbl->lq_type)) {
- IWL_DEBUG_HT("LQ: we are switching to HT"
- " rate suc %d current tpt %d"
- " old tpt %d\n",
- window->success_ratio,
- window->average_tpt,
- lq_sta->last_tpt);
+ if (window->average_tpt > lq_sta->last_tpt) {
+
+ IWL_DEBUG_RATE("LQ: SWITCHING TO CURRENT TABLE "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ window->success_ratio,
+ window->average_tpt,
+ lq_sta->last_tpt);
+
+ if (!is_legacy(tbl->lq_type))
lq_sta->enable_counter = 1;
- }
+
/* Swap tables; "search" becomes "active" */
lq_sta->active_tbl = active_tbl;
current_tpt = window->average_tpt;
/* Else poor success; go back to mode in "active" table */
} else {
+
+ IWL_DEBUG_RATE("LQ: GOING BACK TO THE OLD TABLE "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ window->success_ratio,
+ window->average_tpt,
+ lq_sta->last_tpt);
+
/* Nullify "search" table */
tbl->lq_type = LQ_NONE;
tbl = &(lq_sta->lq_info[active_tbl]);
/* Revert to "active" rate and throughput info */
- index = iwl4965_rate_index_from_plcp(
- tbl->current_rate.rate_n_flags);
+ index = iwl4965_hwrate_to_plcp_idx(
+ tbl->current_rate);
current_tpt = lq_sta->last_tpt;
/* Need to set up a new rate table in uCode */
update_lq = 1;
- IWL_DEBUG_HT("XXY GO BACK TO OLD TABLE\n");
}
/* Either way, we've made a decision; modulation mode
break;
}
- IWL_DEBUG_HT("choose rate scale index %d action %d low %d "
+ IWL_DEBUG_RATE("choose rate scale index %d action %d low %d "
"high %d type %d\n",
index, scale_action, low, high, tbl->lq_type);
lq_update:
/* Replace uCode's rate table for the destination station. */
if (update_lq) {
- rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
- rs_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+ rate = rate_n_flags_from_tbl(tbl, index, is_green);
+ rs_fill_link_cmd(priv, lq_sta, rate);
+ iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
/* Should we stay with this modulation mode, or search for a new one? */
rs_rate_scale_clear_window(&(tbl->win[i]));
/* Use new "search" start rate */
- index = iwl4965_rate_index_from_plcp(
- tbl->current_rate.rate_n_flags);
-
- IWL_DEBUG_HT("Switch current mcs: %X index: %d\n",
- tbl->current_rate.rate_n_flags, index);
- rs_fill_link_cmd(lq_sta, &tbl->current_rate,
- &lq_sta->lq);
- rs_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+ index = iwl4965_hwrate_to_plcp_idx(
+ tbl->current_rate);
+
+ IWL_DEBUG_RATE("Switch current mcs: %X index: %d\n",
+ tbl->current_rate, index);
+ rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
+ iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
/* If the "active" (non-search) mode was legacy,
#endif
(lq_sta->action_counter >= 1)) {
lq_sta->action_counter = 0;
- IWL_DEBUG_HT("LQ: STAY in legacy table\n");
+ IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
rs_set_stay_in_table(1, lq_sta);
}
* mode for a while before next round of mode comparisons. */
if (lq_sta->enable_counter &&
(lq_sta->action_counter >= IWL_ACTION_LIMIT)) {
-#ifdef CONFIG_IWL4965_HT_AGG
- /* If appropriate, set up aggregation! */
- if ((lq_sta->last_tpt > TID_AGG_TPT_THREHOLD) &&
- (priv->lq_mngr.agg_ctrl.auto_agg)) {
- priv->lq_mngr.agg_ctrl.tid_retry =
- TID_ALL_SPECIFIED;
- schedule_work(&priv->agg_work);
+#ifdef CONFIG_IWL4965_HT
+ if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
+ (lq_sta->tx_agg_tid_en & (1 << tid)) &&
+ (tid != MAX_TID_COUNT)) {
+ IWL_DEBUG_RATE("try to aggregate tid %d\n", tid);
+ rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
}
-#endif /*CONFIG_IWL4965_HT_AGG */
+#endif /*CONFIG_IWL4965_HT */
lq_sta->action_counter = 0;
rs_set_stay_in_table(0, lq_sta);
}
}
out:
- rs_mcs_from_tbl(&tbl->current_rate, tbl, index, is_green);
+ tbl->current_rate = rate_n_flags_from_tbl(tbl, index, is_green);
i = index;
- sta->last_txrate = i;
+ sta->last_txrate_idx = i;
- /* sta->txrate is an index to A mode rates which start
+ /* sta->txrate_idx is an index to A mode rates which start
* at IWL_FIRST_OFDM_RATE
*/
- if (lq_sta->phymode == (u8) MODE_IEEE80211A)
- sta->txrate = i - IWL_FIRST_OFDM_RATE;
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
+ sta->txrate_idx = i - IWL_FIRST_OFDM_RATE;
else
- sta->txrate = i;
+ sta->txrate_idx = i;
return;
}
-static void rs_initialize_lq(struct iwl4965_priv *priv,
+static void rs_initialize_lq(struct iwl_priv *priv,
struct ieee80211_conf *conf,
struct sta_info *sta)
{
- int i;
struct iwl4965_lq_sta *lq_sta;
struct iwl4965_scale_tbl_info *tbl;
- u8 active_tbl = 0;
int rate_idx;
+ int i;
+ u32 rate;
u8 use_green = rs_use_green(priv, conf);
- struct iwl4965_rate mcs_rate;
+ u8 active_tbl = 0;
+ u8 valid_tx_ant;
if (!sta || !sta->rate_ctrl_priv)
goto out;
lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
- i = sta->last_txrate;
+ i = sta->last_txrate_idx;
if ((lq_sta->lq.sta_id == 0xff) &&
(priv->iw_mode == IEEE80211_IF_TYPE_IBSS))
goto out;
+ valid_tx_ant = priv->hw_params.valid_tx_ant;
+
if (!lq_sta->search_better_tbl)
active_tbl = lq_sta->active_tbl;
else
if ((i < 0) || (i >= IWL_RATE_COUNT))
i = 0;
- mcs_rate.rate_n_flags = iwl4965_rates[i].plcp ;
- mcs_rate.rate_n_flags |= RATE_MCS_ANT_B_MSK;
- mcs_rate.rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
+ /* FIXME:RS: This is also wrong in 4965 */
+ rate = iwl4965_rates[i].plcp;
+ rate |= RATE_MCS_ANT_B_MSK;
+ rate &= ~RATE_MCS_ANT_A_MSK;
if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE)
- mcs_rate.rate_n_flags |= RATE_MCS_CCK_MSK;
-
- tbl->antenna_type = ANT_AUX;
- rs_get_tbl_info_from_mcs(&mcs_rate, priv->phymode, tbl, &rate_idx);
- if (!rs_is_ant_connected(priv->valid_antenna, tbl->antenna_type))
- rs_toggle_antenna(&mcs_rate, tbl);
-
- rs_mcs_from_tbl(&mcs_rate, tbl, rate_idx, use_green);
- tbl->current_rate.rate_n_flags = mcs_rate.rate_n_flags;
- rs_get_expected_tpt_table(lq_sta, tbl);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
- rs_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+ rate |= RATE_MCS_CCK_MSK;
+
+ tbl->ant_type = ANT_B;
+ rs_get_tbl_info_from_mcs(rate, priv->band, tbl, &rate_idx);
+ if (!rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
+ rs_toggle_antenna(valid_tx_ant, &rate, tbl);
+
+ rate = rate_n_flags_from_tbl(tbl, rate_idx, use_green);
+ tbl->current_rate = rate;
+ rs_set_expected_tpt_table(lq_sta, tbl);
+ rs_fill_link_cmd(NULL, lq_sta, rate);
+ iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
out:
return;
}
static void rs_get_rate(void *priv_rate, struct net_device *dev,
- struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+ struct ieee80211_supported_band *sband,
+ struct sk_buff *skb,
struct rate_selection *sel)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct sta_info *sta;
u16 fc;
- struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
+ struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
struct iwl4965_lq_sta *lq_sta;
IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
+ rcu_read_lock();
+
sta = sta_info_get(local, hdr->addr1);
/* Send management frames and broadcast/multicast data using lowest
fc = le16_to_cpu(hdr->frame_control);
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
!sta || !sta->rate_ctrl_priv) {
- sel->rate = rate_lowest(local, local->oper_hw_mode, sta);
- if (sta)
- sta_info_put(sta);
- return;
+ sel->rate = rate_lowest(local, sband, sta);
+ goto out;
}
lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
- i = sta->last_txrate;
+ i = sta->last_txrate_idx;
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
!lq_sta->ibss_sta_added) {
- u8 sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
+ u8 sta_id = iwl_find_station(priv, hdr->addr1);
DECLARE_MAC_BUF(mac);
if (sta_id == IWL_INVALID_STATION) {
goto done;
}
- done:
+done:
if ((i < 0) || (i > IWL_RATE_COUNT)) {
- sel->rate = rate_lowest(local, local->oper_hw_mode, sta);
- return;
+ sel->rate = rate_lowest(local, sband, sta);
+ goto out;
}
- sta_info_put(sta);
sel->rate = &priv->ieee_rates[i];
+out:
+ rcu_read_unlock();
}
static void *rs_alloc_sta(void *priv, gfp_t gfp)
{
int i, j;
struct ieee80211_conf *conf = &local->hw.conf;
- struct ieee80211_hw_mode *mode = local->oper_hw_mode;
- struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
+ struct ieee80211_supported_band *sband;
+ struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
struct iwl4965_lq_sta *lq_sta = priv_sta;
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
lq_sta->flush_timer = 0;
- lq_sta->supp_rates = sta->supp_rates;
- sta->txrate = 3;
+ lq_sta->supp_rates = sta->supp_rates[sband->band];
+ sta->txrate_idx = 3;
for (j = 0; j < LQ_SIZE; j++)
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&(lq_sta->lq_info[j].win[i]));
- IWL_DEBUG_RATE("rate scale global init\n");
+ IWL_DEBUG_RATE("LQ: *** rate scale global init ***\n");
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
lq_sta->ibss_sta_added = 0;
if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- u8 sta_id = iwl4965_hw_find_station(priv, sta->addr);
+ u8 sta_id = iwl_find_station(priv, sta->addr);
DECLARE_MAC_BUF(mac);
/* for IBSS the call are from tasklet */
- IWL_DEBUG_HT("LQ: ADD station %s\n",
+ IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, sta->addr));
if (sta_id == IWL_INVALID_STATION) {
}
/* Find highest tx rate supported by hardware and destination station */
- for (i = 0; i < mode->num_rates; i++) {
- if ((sta->supp_rates & BIT(i)) &&
- (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED))
- sta->txrate = i;
- }
- sta->last_txrate = sta->txrate;
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (sta->supp_rates[sband->band] & BIT(i))
+ sta->txrate_idx = i;
+
+ sta->last_txrate_idx = sta->txrate_idx;
+ /* WTF is with this bogus comment? A doesn't have cck rates */
/* For MODE_IEEE80211A, cck rates are at end of rate table */
- if (local->hw.conf.phymode == MODE_IEEE80211A)
- sta->last_txrate += IWL_FIRST_OFDM_RATE;
+ if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
lq_sta->is_dup = 0;
- lq_sta->valid_antenna = priv->valid_antenna;
- lq_sta->antenna = priv->antenna;
lq_sta->is_green = rs_use_green(priv, conf);
- lq_sta->active_rate = priv->active_rate;
- lq_sta->active_rate &= ~(0x1000);
+ lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
lq_sta->active_rate_basic = priv->active_rate_basic;
- lq_sta->phymode = priv->phymode;
+ lq_sta->band = priv->band;
#ifdef CONFIG_IWL4965_HT
/*
* active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
* supp_rates[] does not; shift to convert format, force 9 MBits off.
*/
- lq_sta->active_siso_rate = (priv->current_ht_config.supp_mcs_set[0] << 1);
+ lq_sta->active_siso_rate =
+ priv->current_ht_config.supp_mcs_set[0] << 1;
lq_sta->active_siso_rate |=
- (priv->current_ht_config.supp_mcs_set[0] & 0x1);
+ priv->current_ht_config.supp_mcs_set[0] & 0x1;
lq_sta->active_siso_rate &= ~((u16)0x2);
- lq_sta->active_siso_rate =
- lq_sta->active_siso_rate << IWL_FIRST_OFDM_RATE;
+ lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
/* Same here */
- lq_sta->active_mimo_rate = (priv->current_ht_config.supp_mcs_set[1] << 1);
- lq_sta->active_mimo_rate |=
- (priv->current_ht_config.supp_mcs_set[1] & 0x1);
- lq_sta->active_mimo_rate &= ~((u16)0x2);
- lq_sta->active_mimo_rate =
- lq_sta->active_mimo_rate << IWL_FIRST_OFDM_RATE;
- IWL_DEBUG_HT("SISO RATE 0x%X MIMO RATE 0x%X\n",
+ lq_sta->active_mimo2_rate =
+ priv->current_ht_config.supp_mcs_set[1] << 1;
+ lq_sta->active_mimo2_rate |=
+ priv->current_ht_config.supp_mcs_set[1] & 0x1;
+ lq_sta->active_mimo2_rate &= ~((u16)0x2);
+ lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
+
+ lq_sta->active_mimo3_rate =
+ priv->current_ht_config.supp_mcs_set[2] << 1;
+ lq_sta->active_mimo3_rate |=
+ priv->current_ht_config.supp_mcs_set[2] & 0x1;
+ lq_sta->active_mimo3_rate &= ~((u16)0x2);
+ lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
+
+ IWL_DEBUG_RATE("SISO-RATE=%X MIMO2-RATE=%X MIMO3-RATE=%X\n",
lq_sta->active_siso_rate,
- lq_sta->active_mimo_rate);
+ lq_sta->active_mimo2_rate,
+ lq_sta->active_mimo3_rate);
+
+ /* These values will be overriden later */
+ lq_sta->lq.general_params.single_stream_ant_msk = ANT_A;
+ lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB;
+
+ /* as default allow aggregation for all tids */
+ lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
#endif /*CONFIG_IWL4965_HT*/
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->drv = priv;
rs_initialize_lq(priv, conf, sta);
}
-static void rs_fill_link_cmd(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *tx_mcs,
- struct iwl4965_link_quality_cmd *lq_cmd)
+static void rs_fill_link_cmd(const struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
+ u32 new_rate)
{
+ struct iwl4965_scale_tbl_info tbl_type;
int index = 0;
int rate_idx;
int repeat_rate = 0;
- u8 ant_toggle_count = 0;
+ u8 ant_toggle_cnt = 0;
u8 use_ht_possible = 1;
- struct iwl4965_rate new_rate;
- struct iwl4965_scale_tbl_info tbl_type = { 0 };
+ u8 valid_tx_ant = 0;
+ struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq;
/* Override starting rate (index 0) if needed for debug purposes */
- rs_dbgfs_set_mcs(lq_sta, tx_mcs, index);
+ rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
- /* Interpret rate_n_flags */
- rs_get_tbl_info_from_mcs(tx_mcs, lq_sta->phymode,
+ /* 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);
/* How many times should we repeat the initial rate? */
if (is_legacy(tbl_type.lq_type)) {
- ant_toggle_count = 1;
+ ant_toggle_cnt = 1;
repeat_rate = IWL_NUMBER_TRY;
- } else
+ } else {
repeat_rate = IWL_HT_NUMBER_TRY;
+ }
lq_cmd->general_params.mimo_delimiter =
is_mimo(tbl_type.lq_type) ? 1 : 0;
/* Fill 1st table entry (index 0) */
- lq_cmd->rs_table[index].rate_n_flags =
- cpu_to_le32(tx_mcs->rate_n_flags);
- new_rate.rate_n_flags = tx_mcs->rate_n_flags;
+ lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate);
- if (is_mimo(tbl_type.lq_type) || (tbl_type.antenna_type == ANT_MAIN))
- lq_cmd->general_params.single_stream_ant_msk
- = LINK_QUAL_ANT_A_MSK;
- else
- lq_cmd->general_params.single_stream_ant_msk
- = LINK_QUAL_ANT_B_MSK;
+ if (num_of_ant(tbl_type.ant_type) == 1) {
+ lq_cmd->general_params.single_stream_ant_msk =
+ tbl_type.ant_type;
+ } else if (num_of_ant(tbl_type.ant_type) == 2) {
+ lq_cmd->general_params.dual_stream_ant_msk =
+ tbl_type.ant_type;
+ } /* otherwise we don't modify the existing value */
index++;
repeat_rate--;
+ if (priv)
+ valid_tx_ant = priv->hw_params.valid_tx_ant;
+
/* Fill rest of rate table */
while (index < LINK_QUAL_MAX_RETRY_NUM) {
/* Repeat initial/next rate.
* For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */
while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) {
if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_count <
- NUM_TRY_BEFORE_ANTENNA_TOGGLE)
- ant_toggle_count++;
- else {
- rs_toggle_antenna(&new_rate, &tbl_type);
- ant_toggle_count = 1;
- }
- }
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (priv &&
+ rs_toggle_antenna(valid_tx_ant,
+ &new_rate, &tbl_type))
+ ant_toggle_cnt = 1;
+}
/* Override next rate if needed for debug purposes */
rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
/* Fill next table entry */
lq_cmd->rs_table[index].rate_n_flags =
- cpu_to_le32(new_rate.rate_n_flags);
+ cpu_to_le32(new_rate);
repeat_rate--;
index++;
}
- rs_get_tbl_info_from_mcs(&new_rate, lq_sta->phymode, &tbl_type,
+ rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type,
&rate_idx);
/* Indicate to uCode which entries might be MIMO.
lq_cmd->general_params.mimo_delimiter = index;
/* Get next rate */
- rs_get_lower_rate(lq_sta, &tbl_type, rate_idx,
- use_ht_possible, &new_rate);
+ new_rate = rs_get_lower_rate(lq_sta, &tbl_type, rate_idx,
+ use_ht_possible);
/* How many times should we repeat the next rate? */
if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_count < NUM_TRY_BEFORE_ANTENNA_TOGGLE)
- ant_toggle_count++;
- else {
- rs_toggle_antenna(&new_rate, &tbl_type);
- ant_toggle_count = 1;
- }
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (priv &&
+ rs_toggle_antenna(valid_tx_ant,
+ &new_rate, &tbl_type))
+ ant_toggle_cnt = 1;
+
repeat_rate = IWL_NUMBER_TRY;
- } else
+ } else {
repeat_rate = IWL_HT_NUMBER_TRY;
+ }
/* Don't allow HT rates after next pass.
* rs_get_lower_rate() will change type to LQ_A or LQ_G. */
rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
/* Fill next table entry */
- lq_cmd->rs_table[index].rate_n_flags =
- cpu_to_le32(new_rate.rate_n_flags);
+ lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate);
index++;
repeat_rate--;
}
- lq_cmd->general_params.dual_stream_ant_msk = 3;
lq_cmd->agg_params.agg_dis_start_th = 3;
lq_cmd->agg_params.agg_time_limit = cpu_to_le16(4000);
}
static void rs_clear(void *priv_rate)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *) priv_rate;
+ struct iwl_priv *priv = (struct iwl_priv *) priv_rate;
IWL_DEBUG_RATE("enter\n");
priv->lq_mngr.lq_ready = 0;
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- if (priv->lq_mngr.agg_ctrl.granted_ba)
- iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);
-#endif /*CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
IWL_DEBUG_RATE("leave\n");
}
return 0;
}
static void rs_dbgfs_set_mcs(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *mcs, int index)
+ u32 *rate_n_flags, int index)
{
- u32 base_rate;
-
- if (lq_sta->phymode == (u8) MODE_IEEE80211A)
- base_rate = 0x800D;
- else
- base_rate = 0x820A;
-
- if (lq_sta->dbg_fixed.rate_n_flags) {
- if (index < 12)
- mcs->rate_n_flags = lq_sta->dbg_fixed.rate_n_flags;
- else
- mcs->rate_n_flags = base_rate;
+ if (lq_sta->dbg_fixed_rate) {
+ if (index < 12) {
+ *rate_n_flags = lq_sta->dbg_fixed_rate;
+ } else {
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
+ *rate_n_flags = 0x800D;
+ else
+ *rate_n_flags = 0x820A;
+ }
IWL_DEBUG_RATE("Fixed rate ON\n");
- return;
+ } else {
+ IWL_DEBUG_RATE("Fixed rate OFF\n");
}
-
- IWL_DEBUG_RATE("Fixed rate OFF\n");
}
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_n_flags = parsed_rate;
+ lq_sta->dbg_fixed_rate = parsed_rate;
else
- lq_sta->dbg_fixed.rate_n_flags = 0;
+ lq_sta->dbg_fixed_rate = 0;
- lq_sta->active_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
- lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
- lq_sta->active_mimo_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ 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("sta_id %d rate 0x%X\n",
- lq_sta->lq.sta_id, lq_sta->dbg_fixed.rate_n_flags);
+ lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
- if (lq_sta->dbg_fixed.rate_n_flags) {
- rs_fill_link_cmd(lq_sta, &lq_sta->dbg_fixed, &lq_sta->lq);
- rs_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC);
+ 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, &lq_sta->lq, CMD_ASYNC);
}
return count;
desc += sprintf(buff+desc, "sta_id %d\n", lq_sta->lq.sta_id);
desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n",
lq_sta->total_failed, lq_sta->total_success,
- lq_sta->active_rate);
+ lq_sta->active_legacy_rate);
desc += sprintf(buff+desc, "fixed rate 0x%X\n",
- lq_sta->dbg_fixed.rate_n_flags);
+ lq_sta->dbg_fixed_rate);
desc += sprintf(buff+desc, "general:"
"flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
lq_sta->lq.general_params.flags,
lq_sta->lq_info[i].is_SGI,
lq_sta->lq_info[i].is_fat,
lq_sta->lq_info[i].is_dup,
- lq_sta->lq_info[i].current_rate.rate_n_flags);
+ lq_sta->lq_info[i].current_rate);
for (j = 0; j < IWL_RATE_COUNT; j++) {
desc += sprintf(buff+desc,
"counter=%d success=%d %%=%d\n",
lq_sta->rs_sta_dbgfs_stats_table_file =
debugfs_create_file("rate_stats_table", 0600, dir,
lq_sta, &rs_sta_dbgfs_stats_table_ops);
+#ifdef CONFIG_IWL4965_HT
+ lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
+ debugfs_create_u8("tx_agg_tid_enable", 0600, dir,
+ &lq_sta->tx_agg_tid_en);
+#endif
+
}
static void rs_remove_debugfs(void *priv, void *priv_sta)
struct iwl4965_lq_sta *lq_sta = priv_sta;
debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
+#ifdef CONFIG_IWL4965_HT
+ debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
+#endif
}
#endif
int iwl4965_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
struct iwl4965_lq_sta *lq_sta;
struct sta_info *sta;
int cnt = 0, i;
u32 max_time = 0;
u8 lq_type, antenna;
+ rcu_read_lock();
+
sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
if (!sta || !sta->rate_ctrl_priv) {
- if (sta) {
- sta_info_put(sta);
+ if (sta)
IWL_DEBUG_RATE("leave - no private rate data!\n");
- } else
+ else
IWL_DEBUG_RATE("leave - no station!\n");
+ rcu_read_unlock();
return sprintf(buf, "station %d not found\n", sta_id);
}
lq_sta = (void *)sta->rate_ctrl_priv;
lq_type = lq_sta->lq_info[lq_sta->active_tbl].lq_type;
- antenna = lq_sta->lq_info[lq_sta->active_tbl].antenna_type;
+ antenna = lq_sta->lq_info[lq_sta->active_tbl].ant_type;
if (is_legacy(lq_type))
i = IWL_RATE_54M_INDEX;
cnt += sprintf(&buf[cnt], "\nrate scale type %d antenna %d "
"active_search %d rate index %d\n", lq_type, antenna,
- lq_sta->search_better_tbl, sta->last_txrate);
+ lq_sta->search_better_tbl, sta->last_txrate_idx);
- sta_info_put(sta);
+ rcu_read_unlock();
return cnt;
}
void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
priv->lq_mngr.lq_ready = 1;
}
-void iwl4965_rate_control_register(struct ieee80211_hw *hw)
+int iwl4965_rate_control_register(void)
{
- ieee80211_rate_control_register(&rs_ops);
+ return ieee80211_rate_control_register(&rs_ops);
}
-void iwl4965_rate_control_unregister(struct ieee80211_hw *hw)
+void iwl4965_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_ops);
}