* file called LICENSE.
*
* Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include "iwl-dev.h"
#include "iwl-sta.h"
#include "iwl-core.h"
-#include "iwl-helpers.h"
#define RS_NAME "iwl-agn-rs"
* 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*/
+/*FIXME:RS:need to separate 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
};
u32 time_diff;
s32 index;
struct iwl_traffic_load *tl = NULL;
- __le16 fc = hdr->frame_control;
u8 tid;
- if (ieee80211_is_data_qos(fc)) {
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
u8 *qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
} else
struct iwl_lq_sta *lq_data, u8 tid,
struct ieee80211_sta *sta)
{
- DECLARE_MAC_BUF(mac);
-
if (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);
+ IWL_DEBUG_HT("Starting Tx agg: STA: %pM tid: %d\n",
+ sta->addr, tid);
ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
}
}
int status;
u8 retries;
int rs_index, index = 0;
- struct iwl_lq_sta *lq_sta;
+ struct iwl_lq_sta *lq_sta = priv_sta;
struct iwl_link_quality_cmd *table;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct iwl_scale_tbl_info tbl_type;
struct iwl_scale_tbl_info *curr_tbl, *search_tbl;
u8 active_index = 0;
- __le16 fc = hdr->frame_control;
s32 tpt = 0;
IWL_DEBUG_RATE_LIMIT("get frame ack response, update rate scale window\n");
- if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
+ if (!ieee80211_is_data(hdr->frame_control) ||
+ is_multicast_ether_addr(hdr->addr1))
return;
/* This packet was aggregated but doesn't carry rate scale info */
!(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
- retries = info->status.retry_count;
+ retries = info->status.rates[0].count - 1;
if (retries > 15)
retries = 15;
- lq_sta = (struct iwl_lq_sta *)priv_sta;
-
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!lq_sta->ibss_sta_added)
goto out;
if (priv->band == IEEE80211_BAND_5GHZ)
rs_index -= IWL_FIRST_OFDM_RATE;
- if ((info->tx_rate_idx < 0) ||
- (tbl_type.is_SGI ^
- !!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) ||
- (tbl_type.is_fat ^
- !!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) ||
- (tbl_type.is_dup ^
- !!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) ||
- (tbl_type.ant_type ^ info->antenna_sel_tx) ||
- (!!(tx_rate & RATE_MCS_HT_MSK) ^
- !!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) ||
- (!!(tx_rate & RATE_MCS_GF_MSK) ^
- !!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) ||
+ if ((info->status.rates[0].idx < 0) ||
+ (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) ||
+ (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
+ (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) ||
+ (tbl_type.ant_type != info->antenna_sel_tx) ||
+ (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) ||
+ (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
(hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
- hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) {
+ hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) {
IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate);
+ /* the last LQ command could failed so the LQ in ucode not
+ * the same in driver sync up
+ */
+ iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
goto out;
}
}
/* See if there's a better rate or modulation mode to try. */
- rs_rate_scale_perform(priv, hdr, sta, lq_sta);
+ if (sta && sta->supp_rates[sband->band])
+ rs_rate_scale_perform(priv, hdr, sta, lq_sta);
out:
return;
}
s32 rate;
s8 is_green = lq_sta->is_green;
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->ht_info.ht_supported)
+ if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
return -1;
- if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
+ if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
return -1;
u8 is_green = lq_sta->is_green;
s32 rate;
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->ht_info.ht_supported)
+ if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
return -1;
IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
int high_tpt = IWL_INVALID_VALUE;
u32 fail_count;
s8 scale_action = 0;
- __le16 fc;
u16 rate_mask;
u8 update_lq = 0;
struct iwl_scale_tbl_info *tbl, *tbl1;
IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
- fc = hdr->frame_control;
- if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1)) {
- /* Send management frames and broadcast/multicast data using
- * lowest rate. */
- /* TODO: this could probably be improved.. */
+ /* Send management frames and broadcast/multicast data using
+ * lowest rate. */
+ /* TODO: this could probably be improved.. */
+ if (!ieee80211_is_data(hdr->frame_control) ||
+ is_multicast_ether_addr(hdr->addr1))
return;
- }
if (!sta || !lq_sta)
return;
* stay with best antenna legacy modulation for a while
* before next round of mode comparisons. */
tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
- if (is_legacy(tbl1->lq_type) &&
- (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) &&
- (lq_sta->action_counter >= 1)) {
+ if (is_legacy(tbl1->lq_type) && !conf->ht.enabled &&
+ lq_sta->action_counter >= 1) {
lq_sta->action_counter = 0;
IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
rs_set_stay_in_table(priv, 1, lq_sta);
if ((i < 0) || (i >= IWL_RATE_COUNT))
i = 0;
- /* FIXME:RS: This is also wrong in 4965 */
rate = iwl_rates[i].plcp;
- rate |= RATE_MCS_ANT_B_MSK;
- rate &= ~RATE_MCS_ANT_A_MSK;
+ tbl->ant_type = first_antenna(valid_tx_ant);
+ rate |= tbl->ant_type << RATE_MCS_ANT_POS;
if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE)
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);
return;
}
-static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta,
- struct sk_buff *skb, struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
+ struct ieee80211_tx_rate_control *txrc)
{
- int i;
+ struct sk_buff *skb = txrc->skb;
+ struct ieee80211_supported_band *sband = txrc->sband;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- __le16 fc;
- struct iwl_lq_sta *lq_sta;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct iwl_lq_sta *lq_sta = priv_sta;
+ int rate_idx;
+ u64 mask_bit = 0;
IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
+ if (sta)
+ mask_bit = sta->supp_rates[sband->band];
+
/* Send management frames and broadcast/multicast data using lowest
* rate. */
- fc = hdr->frame_control;
- if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
- !sta || !priv_sta) {
- sel->rate_idx = rate_lowest_index(sband, sta);
+ if (!ieee80211_is_data(hdr->frame_control) ||
+ is_multicast_ether_addr(hdr->addr1) || !sta || !lq_sta) {
+ if (!mask_bit)
+ info->control.rates[0].idx =
+ rate_lowest_index(sband, NULL);
+ else
+ info->control.rates[0].idx =
+ rate_lowest_index(sband, sta);
return;
}
- lq_sta = (struct iwl_lq_sta *)priv_sta;
- i = lq_sta->last_txrate_idx;
+ rate_idx = lq_sta->last_txrate_idx;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!lq_sta->ibss_sta_added) {
u8 sta_id = iwl_find_station(priv, hdr->addr1);
- DECLARE_MAC_BUF(mac);
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_RATE("LQ: ADD station %s\n",
- print_mac(mac, hdr->addr1));
+ IWL_DEBUG_RATE("LQ: ADD station %pM\n",
+ hdr->addr1);
sta_id = iwl_add_station_flags(priv, hdr->addr1,
0, CMD_ASYNC, NULL);
}
}
}
- if ((i < 0) || (i > IWL_RATE_COUNT)) {
- sel->rate_idx = rate_lowest_index(sband, sta);
- return;
- }
+ if (rate_idx < 0 || rate_idx > IWL_RATE_COUNT)
+ rate_idx = rate_lowest_index(sband, sta);
+ else if (sband->band == IEEE80211_BAND_5GHZ)
+ rate_idx -= IWL_FIRST_OFDM_RATE;
- if (sband->band == IEEE80211_BAND_5GHZ)
- i -= IWL_FIRST_OFDM_RATE;
- sel->rate_idx = i;
+ info->control.rates[0].idx = rate_idx;
}
static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_conf *conf = &priv->hw->conf;
struct iwl_lq_sta *lq_sta = priv_sta;
+ u16 mask_bit = 0;
lq_sta->flush_timer = 0;
lq_sta->supp_rates = sta->supp_rates[sband->band];
lq_sta->ibss_sta_added = 0;
if (priv->iw_mode == NL80211_IFTYPE_AP) {
u8 sta_id = iwl_find_station(priv, sta->addr);
- DECLARE_MAC_BUF(mac);
/* for IBSS the call are from tasklet */
- IWL_DEBUG_RATE("LQ: ADD station %s\n",
- print_mac(mac, sta->addr));
+ IWL_DEBUG_RATE("LQ: ADD station %pM\n", sta->addr);
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_RATE("LQ: ADD station %s\n",
- print_mac(mac, sta->addr));
+ IWL_DEBUG_RATE("LQ: ADD station %pM\n", sta->addr);
sta_id = iwl_add_station_flags(priv, sta->addr,
0, CMD_ASYNC, NULL);
}
priv->assoc_station_added = 1;
}
- /* Find highest tx rate supported by hardware and destination station */
- lq_sta->last_txrate_idx = 3;
- for (i = 0; i < sband->n_bitrates; i++)
- if (sta->supp_rates[sband->band] & BIT(i))
- lq_sta->last_txrate_idx = i;
-
- /* For MODE_IEEE80211A, skip over cck rates in global rate table */
- if (sband->band == IEEE80211_BAND_5GHZ)
- lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
-
lq_sta->is_dup = 0;
lq_sta->is_green = rs_use_green(priv, conf);
lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
* 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 = conf->ht_conf.supp_mcs_set[0] << 1;
- lq_sta->active_siso_rate |= conf->ht_conf.supp_mcs_set[0] & 0x1;
+ lq_sta->active_siso_rate = sta->ht_cap.mcs.rx_mask[0] << 1;
+ lq_sta->active_siso_rate |= sta->ht_cap.mcs.rx_mask[0] & 0x1;
lq_sta->active_siso_rate &= ~((u16)0x2);
lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
/* Same here */
- lq_sta->active_mimo2_rate = conf->ht_conf.supp_mcs_set[1] << 1;
- lq_sta->active_mimo2_rate |= conf->ht_conf.supp_mcs_set[1] & 0x1;
+ lq_sta->active_mimo2_rate = sta->ht_cap.mcs.rx_mask[1] << 1;
+ lq_sta->active_mimo2_rate |= sta->ht_cap.mcs.rx_mask[1] & 0x1;
lq_sta->active_mimo2_rate &= ~((u16)0x2);
lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
- lq_sta->active_mimo3_rate = conf->ht_conf.supp_mcs_set[2] << 1;
- lq_sta->active_mimo3_rate |= conf->ht_conf.supp_mcs_set[2] & 0x1;
+ lq_sta->active_mimo3_rate = sta->ht_cap.mcs.rx_mask[2] << 1;
+ lq_sta->active_mimo3_rate |= sta->ht_cap.mcs.rx_mask[2] & 0x1;
lq_sta->active_mimo3_rate &= ~((u16)0x2);
lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
lq_sta->active_mimo2_rate,
lq_sta->active_mimo3_rate);
- /* These values will be overriden later */
+ /* These values will be overridden later */
lq_sta->lq.general_params.single_stream_ant_msk = ANT_A;
lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB;
lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
lq_sta->drv = priv;
+ /* Find highest tx rate supported by hardware and destination station */
+ mask_bit = sta->supp_rates[sband->band] & lq_sta->active_legacy_rate;
+ lq_sta->last_txrate_idx = 3;
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (mask_bit & BIT(i))
+ lq_sta->last_txrate_idx = i;
+
+ /* For MODE_IEEE80211A, skip over cck rates in global rate table */
+ if (sband->band == IEEE80211_BAND_5GHZ)
+ lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
+
rs_initialize_lq(priv, conf, sta, lq_sta);
}
return;
}
-static void rs_clear(void *priv_rate)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_priv *priv = (struct iwl_priv *) priv_rate;
-
- IWL_DEBUG_RATE("enter\n");
-
- /* TODO - add rate scale state reset */
-
- IWL_DEBUG_RATE("leave\n");
-#endif /* CONFIG_IWLWIFI_DEBUG */
-}
-
static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
void *priv_sta)
{
for (i = 0; i < LQ_SIZE; i++) {
desc += sprintf(buff+desc, "%s type=%d SGI=%d FAT=%d DUP=%d\n"
"rate=0x%X\n",
- lq_sta->active_tbl == i?"*":"x",
+ lq_sta->active_tbl == i ? "*" : "x",
lq_sta->lq_info[i].lq_type,
lq_sta->lq_info[i].is_SGI,
lq_sta->lq_info[i].is_fat,
.tx_status = rs_tx_status,
.get_rate = rs_get_rate,
.rate_init = rs_rate_init,
- .clear = rs_clear,
.alloc = rs_alloc,
.free = rs_free,
.alloc_sta = rs_alloc_sta,
projects / linux-2.6-omap-h63xx.git / blobdiff