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path: root/drivers/net/wireless/iwlwifi/mvm/rs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/rs.c122
1 files changed, 95 insertions, 27 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 6abf74e1351f..399709f2be2e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -166,7 +166,7 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return false;
- if (num_of_ant(iwl_fw_valid_tx_ant(mvm->fw)) < 2)
+ if (num_of_ant(mvm->fw->valid_tx_ant) < 2)
return false;
if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
@@ -380,49 +380,49 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search);
* (2.4 GHz) band.
*/
-static s32 expected_tpt_legacy[IWL_RATE_COUNT] = {
+static const u16 expected_tpt_legacy[IWL_RATE_COUNT] = {
7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0
};
/* Expected TpT tables. 4 indexes:
* 0 - NGI, 1 - SGI, 2 - AGG+NGI, 3 - AGG+SGI
*/
-static s32 expected_tpt_siso_20MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_siso_20MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 42, 0, 76, 102, 124, 159, 183, 193, 202, 216, 0},
{0, 0, 0, 0, 46, 0, 82, 110, 132, 168, 192, 202, 210, 225, 0},
{0, 0, 0, 0, 49, 0, 97, 145, 192, 285, 375, 420, 464, 551, 0},
{0, 0, 0, 0, 54, 0, 108, 160, 213, 315, 415, 465, 513, 608, 0},
};
-static s32 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257, 269, 275},
{0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264, 275, 280},
{0, 0, 0, 0, 101, 0, 199, 295, 389, 570, 744, 828, 911, 1070, 1173},
{0, 0, 0, 0, 112, 0, 220, 326, 429, 629, 819, 912, 1000, 1173, 1284},
};
-static s32 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 130, 0, 191, 223, 244, 273, 288, 294, 298, 305, 308},
{0, 0, 0, 0, 138, 0, 200, 231, 251, 279, 293, 298, 302, 308, 312},
{0, 0, 0, 0, 217, 0, 429, 634, 834, 1220, 1585, 1760, 1931, 2258, 2466},
{0, 0, 0, 0, 241, 0, 475, 701, 921, 1343, 1741, 1931, 2117, 2468, 2691},
};
-static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250, 261, 0},
{0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256, 267, 0},
{0, 0, 0, 0, 98, 0, 193, 286, 375, 550, 718, 799, 878, 1032, 0},
{0, 0, 0, 0, 109, 0, 214, 316, 414, 607, 790, 879, 965, 1132, 0},
};
-static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289, 296, 300},
{0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293, 300, 303},
{0, 0, 0, 0, 200, 0, 390, 571, 741, 1067, 1365, 1505, 1640, 1894, 2053},
{0, 0, 0, 0, 221, 0, 430, 630, 816, 1169, 1490, 1641, 1784, 2053, 2221},
};
-static s32 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = {
+static const u16 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = {
{0, 0, 0, 0, 182, 0, 240, 264, 278, 299, 308, 311, 313, 317, 319},
{0, 0, 0, 0, 190, 0, 247, 269, 282, 302, 310, 313, 315, 319, 320},
{0, 0, 0, 0, 428, 0, 833, 1215, 1577, 2254, 2863, 3147, 3418, 3913, 4219},
@@ -905,7 +905,7 @@ static void rs_get_lower_rate_down_column(struct iwl_lq_sta *lq_sta,
rate->bw = RATE_MCS_CHAN_WIDTH_20;
- WARN_ON_ONCE(rate->index < IWL_RATE_MCS_0_INDEX &&
+ WARN_ON_ONCE(rate->index < IWL_RATE_MCS_0_INDEX ||
rate->index > IWL_RATE_MCS_9_INDEX);
rate->index = rs_ht_to_legacy[rate->index];
@@ -917,7 +917,7 @@ static void rs_get_lower_rate_down_column(struct iwl_lq_sta *lq_sta,
if (num_of_ant(rate->ant) > 1)
- rate->ant = first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
+ rate->ant = first_antenna(mvm->fw->valid_tx_ant);
/* Relevant in both switching to SISO or Legacy */
rate->sgi = false;
@@ -1169,12 +1169,12 @@ static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy,
lq_sta->visited_columns = 0;
}
-static s32 *rs_get_expected_tpt_table(struct iwl_lq_sta *lq_sta,
+static const u16 *rs_get_expected_tpt_table(struct iwl_lq_sta *lq_sta,
const struct rs_tx_column *column,
u32 bw)
{
/* Used to choose among HT tables */
- s32 (*ht_tbl_pointer)[IWL_RATE_COUNT];
+ const u16 (*ht_tbl_pointer)[IWL_RATE_COUNT];
if (WARN_ON_ONCE(column->mode != RS_LEGACY &&
column->mode != RS_SISO &&
@@ -1262,9 +1262,8 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm,
&(lq_sta->lq_info[lq_sta->active_tbl]);
s32 active_sr = active_tbl->win[index].success_ratio;
s32 active_tpt = active_tbl->expected_tpt[index];
-
/* expected "search" throughput */
- s32 *tpt_tbl = tbl->expected_tpt;
+ const u16 *tpt_tbl = tbl->expected_tpt;
s32 new_rate, high, low, start_hi;
u16 high_low;
@@ -1478,8 +1477,8 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
const struct rs_tx_column *curr_col = &rs_tx_columns[tbl->column];
const struct rs_tx_column *next_col;
allow_column_func_t allow_func;
- u8 valid_ants = iwl_fw_valid_tx_ant(mvm->fw);
- s32 *expected_tpt_tbl;
+ u8 valid_ants = mvm->fw->valid_tx_ant;
+ const u16 *expected_tpt_tbl;
s32 tpt, max_expected_tpt;
for (i = 0; i < MAX_NEXT_COLUMNS; i++) {
@@ -2090,7 +2089,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
i = lq_sta->last_txrate_idx;
- valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw);
+ valid_tx_ant = mvm->fw->valid_tx_ant;
if (!lq_sta->search_better_tbl)
active_tbl = lq_sta->active_tbl;
@@ -2241,6 +2240,73 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta,
}
}
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+static void iwl_mvm_reset_frame_stats(struct iwl_mvm *mvm,
+ struct iwl_mvm_frame_stats *stats)
+{
+ spin_lock_bh(&mvm->drv_stats_lock);
+ memset(stats, 0, sizeof(*stats));
+ spin_unlock_bh(&mvm->drv_stats_lock);
+}
+
+void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm,
+ struct iwl_mvm_frame_stats *stats,
+ u32 rate, bool agg)
+{
+ u8 nss = 0, mcs = 0;
+
+ spin_lock(&mvm->drv_stats_lock);
+
+ if (agg)
+ stats->agg_frames++;
+
+ stats->success_frames++;
+
+ switch (rate & RATE_MCS_CHAN_WIDTH_MSK) {
+ case RATE_MCS_CHAN_WIDTH_20:
+ stats->bw_20_frames++;
+ break;
+ case RATE_MCS_CHAN_WIDTH_40:
+ stats->bw_40_frames++;
+ break;
+ case RATE_MCS_CHAN_WIDTH_80:
+ stats->bw_80_frames++;
+ break;
+ default:
+ WARN_ONCE(1, "bad BW. rate 0x%x", rate);
+ }
+
+ if (rate & RATE_MCS_HT_MSK) {
+ stats->ht_frames++;
+ mcs = rate & RATE_HT_MCS_RATE_CODE_MSK;
+ nss = ((rate & RATE_HT_MCS_NSS_MSK) >> RATE_HT_MCS_NSS_POS) + 1;
+ } else if (rate & RATE_MCS_VHT_MSK) {
+ stats->vht_frames++;
+ mcs = rate & RATE_VHT_MCS_RATE_CODE_MSK;
+ nss = ((rate & RATE_VHT_MCS_NSS_MSK) >>
+ RATE_VHT_MCS_NSS_POS) + 1;
+ } else {
+ stats->legacy_frames++;
+ }
+
+ if (nss == 1)
+ stats->siso_frames++;
+ else if (nss == 2)
+ stats->mimo2_frames++;
+
+ if (rate & RATE_MCS_SGI_MSK)
+ stats->sgi_frames++;
+ else
+ stats->ngi_frames++;
+
+ stats->last_rates[stats->last_frame_idx] = rate;
+ stats->last_frame_idx = (stats->last_frame_idx + 1) %
+ ARRAY_SIZE(stats->last_rates);
+
+ spin_unlock(&mvm->drv_stats_lock);
+}
+#endif
+
/*
* Called after adding a new station to initialize rate scaling
*/
@@ -2320,7 +2386,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
/* These values will be overridden later */
lq_sta->lq.single_stream_ant_msk =
- first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
+ first_antenna(mvm->fw->valid_tx_ant);
lq_sta->lq.dual_stream_ant_msk = ANT_AB;
/* as default allow aggregation for all tids */
@@ -2335,7 +2401,9 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->dbg_fixed_rate = 0;
#endif
-
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ iwl_mvm_reset_frame_stats(mvm, &mvm->drv_rx_stats);
+#endif
rs_initialize_lq(mvm, sta, lq_sta, band, init);
}
@@ -2446,7 +2514,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
memcpy(&rate, initial_rate, sizeof(rate));
- valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw);
+ valid_tx_ant = mvm->fw->valid_tx_ant;
if (is_siso(&rate)) {
num_rates = RS_INITIAL_SISO_NUM_RATES;
@@ -2547,7 +2615,7 @@ static void rs_free_sta(void *mvm_r, struct ieee80211_sta *sta,
}
#ifdef CONFIG_MAC80211_DEBUGFS
-static int rs_pretty_print_rate(char *buf, const u32 rate)
+int rs_pretty_print_rate(char *buf, const u32 rate)
{
char *type, *bw;
@@ -2596,7 +2664,7 @@ static int rs_pretty_print_rate(char *buf, const u32 rate)
return sprintf(buf, "%s | ANT: %s BW: %s MCS: %d NSS: %d %s%s%s%s%s\n",
type, rs_pretty_ant(ant), bw, mcs, nss,
(rate & RATE_MCS_SGI_MSK) ? "SGI " : "NGI ",
- (rate & RATE_MCS_STBC_MSK) ? "STBC " : "",
+ (rate & RATE_MCS_HT_STBC_MSK) ? "STBC " : "",
(rate & RATE_MCS_LDPC_MSK) ? "LDPC " : "",
(rate & RATE_MCS_BF_MSK) ? "BF " : "",
(rate & RATE_MCS_ZLF_MSK) ? "ZLF " : "");
@@ -2677,9 +2745,9 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
desc += sprintf(buff+desc, "fixed rate 0x%X\n",
lq_sta->dbg_fixed_rate);
desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
- (iwl_fw_valid_tx_ant(mvm->fw) & ANT_A) ? "ANT_A," : "",
- (iwl_fw_valid_tx_ant(mvm->fw) & ANT_B) ? "ANT_B," : "",
- (iwl_fw_valid_tx_ant(mvm->fw) & ANT_C) ? "ANT_C" : "");
+ (mvm->fw->valid_tx_ant & ANT_A) ? "ANT_A," : "",
+ (mvm->fw->valid_tx_ant & ANT_B) ? "ANT_B," : "",
+ (mvm->fw->valid_tx_ant & ANT_C) ? "ANT_C" : "");
desc += sprintf(buff+desc, "lq type %s\n",
(is_legacy(rate)) ? "legacy" :
is_vht(rate) ? "VHT" : "HT");
@@ -2815,8 +2883,8 @@ static void rs_rate_init_stub(void *mvm_r,
struct ieee80211_sta *sta, void *mvm_sta)
{
}
-static struct rate_control_ops rs_mvm_ops = {
- .module = NULL,
+
+static const struct rate_control_ops rs_mvm_ops = {
.name = RS_NAME,
.tx_status = rs_tx_status,
.get_rate = rs_get_rate,
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