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@@ -52,7 +52,7 @@
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/* max allowed rate miss before sync LQ cmd */
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#define IWL_MISSED_RATE_MAX 15
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/* max time to accum history 2 seconds */
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-#define IWL_RATE_SCALE_FLUSH_INTVL (2*HZ)
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+#define IWL_RATE_SCALE_FLUSH_INTVL (3*HZ)
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static u8 rs_ht_to_legacy[] = {
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IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX,
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@@ -135,7 +135,7 @@ struct iwl_lq_sta {
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u32 table_count;
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u32 total_failed; /* total failed frames, any/all rates */
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u32 total_success; /* total successful frames, any/all rates */
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- u32 flush_timer; /* time staying in mode before new search */
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+ u64 flush_timer; /* time staying in mode before new search */
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u8 action_counter; /* # mode-switch actions tried */
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u8 is_green;
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@@ -167,6 +167,8 @@ struct iwl_lq_sta {
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/* used to be in sta_info */
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int last_txrate_idx;
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+ /* last tx rate_n_flags */
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+ u32 last_rate_n_flags;
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};
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static void rs_rate_scale_perform(struct iwl_priv *priv,
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@@ -191,7 +193,7 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
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* 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
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* "G" is the only table that supports CCK (the first 4 rates).
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*/
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-/*FIXME:RS:need to separate tables for MIMO2/MIMO3*/
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+
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static s32 expected_tpt_A[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186, 186
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};
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@@ -208,11 +210,11 @@ static s32 expected_tpt_siso20MHzSGI[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 46, 46, 82, 110, 132, 168, 192, 202, 211
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};
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-static s32 expected_tpt_mimo20MHz[IWL_RATE_COUNT] = {
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+static s32 expected_tpt_mimo2_20MHz[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 74, 74, 123, 155, 179, 214, 236, 244, 251
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};
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-static s32 expected_tpt_mimo20MHzSGI[IWL_RATE_COUNT] = {
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+static s32 expected_tpt_mimo2_20MHzSGI[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 81, 81, 131, 164, 188, 222, 243, 251, 257
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};
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@@ -224,14 +226,48 @@ static s32 expected_tpt_siso40MHzSGI[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 83, 83, 135, 169, 193, 229, 250, 257, 264
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};
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-static s32 expected_tpt_mimo40MHz[IWL_RATE_COUNT] = {
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+static s32 expected_tpt_mimo2_40MHz[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 123, 123, 182, 214, 235, 264, 279, 285, 289
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};
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-static s32 expected_tpt_mimo40MHzSGI[IWL_RATE_COUNT] = {
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+static s32 expected_tpt_mimo2_40MHzSGI[IWL_RATE_COUNT] = {
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0, 0, 0, 0, 131, 131, 191, 222, 242, 270, 284, 289, 293
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};
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+/* Expected throughput metric MIMO3 */
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+static s32 expected_tpt_mimo3_20MHz[IWL_RATE_COUNT] = {
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+ 0, 0, 0, 0, 99, 99, 153, 186, 208, 239, 256, 263, 268
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+};
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+
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+static s32 expected_tpt_mimo3_20MHzSGI[IWL_RATE_COUNT] = {
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+ 0, 0, 0, 0, 106, 106, 162, 194, 215, 246, 262, 268, 273
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+};
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+
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+static s32 expected_tpt_mimo3_40MHz[IWL_RATE_COUNT] = {
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+ 0, 0, 0, 0, 152, 152, 211, 239, 255, 279, 290, 294, 297
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+};
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+
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+static s32 expected_tpt_mimo3_40MHzSGI[IWL_RATE_COUNT] = {
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+ 0, 0, 0, 0, 160, 160, 219, 245, 261, 284, 294, 297, 300
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+};
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+
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+/* mbps, mcs */
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+const static struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
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+ {"1", ""},
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+ {"2", ""},
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+ {"5.5", ""},
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+ {"11", ""},
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+ {"6", "BPSK 1/2"},
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+ {"9", "BPSK 1/2"},
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+ {"12", "QPSK 1/2"},
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+ {"18", "QPSK 3/4"},
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+ {"24", "16QAM 1/2"},
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+ {"36", "16QAM 3/4"},
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+ {"48", "64QAM 2/3"},
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+ {"54", "64QAM 3/4"},
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+ {"60", "64QAM 5/6"}
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+};
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+
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static inline u8 rs_extract_rate(u32 rate_n_flags)
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{
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return (u8)(rate_n_flags & 0xFF);
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@@ -902,6 +938,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
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* else look up the rate that was, finally, successful.
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*/
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tx_rate = le32_to_cpu(table->rs_table[index].rate_n_flags);
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+ lq_sta->last_rate_n_flags = tx_rate;
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rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, &rs_index);
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/* Update frame history window with "success" if Tx got ACKed ... */
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@@ -988,6 +1025,7 @@ static void rs_set_stay_in_table(struct iwl_priv *priv, u8 is_legacy,
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lq_sta->table_count = 0;
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lq_sta->total_failed = 0;
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lq_sta->total_success = 0;
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+ lq_sta->flush_timer = jiffies;
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}
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/*
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@@ -1011,17 +1049,26 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
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tbl->expected_tpt = expected_tpt_siso20MHzSGI;
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else
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tbl->expected_tpt = expected_tpt_siso20MHz;
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-
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- } else if (is_mimo(tbl->lq_type)) { /* FIXME:need to separate mimo2/3 */
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+ } else if (is_mimo2(tbl->lq_type)) {
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+ if (tbl->is_fat && !lq_sta->is_dup)
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+ if (tbl->is_SGI)
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+ tbl->expected_tpt = expected_tpt_mimo2_40MHzSGI;
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+ else
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+ tbl->expected_tpt = expected_tpt_mimo2_40MHz;
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+ else if (tbl->is_SGI)
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+ tbl->expected_tpt = expected_tpt_mimo2_20MHzSGI;
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+ else
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+ tbl->expected_tpt = expected_tpt_mimo2_20MHz;
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+ } else if (is_mimo3(tbl->lq_type)) {
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if (tbl->is_fat && !lq_sta->is_dup)
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if (tbl->is_SGI)
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- tbl->expected_tpt = expected_tpt_mimo40MHzSGI;
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+ tbl->expected_tpt = expected_tpt_mimo3_40MHzSGI;
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else
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- tbl->expected_tpt = expected_tpt_mimo40MHz;
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+ tbl->expected_tpt = expected_tpt_mimo3_40MHz;
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else if (tbl->is_SGI)
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- tbl->expected_tpt = expected_tpt_mimo20MHzSGI;
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+ tbl->expected_tpt = expected_tpt_mimo3_20MHzSGI;
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else
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- tbl->expected_tpt = expected_tpt_mimo20MHz;
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+ tbl->expected_tpt = expected_tpt_mimo3_20MHz;
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} else
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tbl->expected_tpt = expected_tpt_G;
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}
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@@ -1130,7 +1177,7 @@ static s32 rs_get_best_rate(struct iwl_priv *priv,
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}
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/*
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- * Set up search table for MIMO
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+ * Set up search table for MIMO2
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*/
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static int rs_switch_to_mimo2(struct iwl_priv *priv,
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struct iwl_lq_sta *lq_sta,
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@@ -1183,7 +1230,73 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
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rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
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IWL_DEBUG_RATE(priv, "LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
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+ if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
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+ IWL_DEBUG_RATE(priv, "Can't switch with index %d rate mask %x\n",
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+ rate, rate_mask);
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+ return -1;
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+ }
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+ tbl->current_rate = rate_n_flags_from_tbl(priv, tbl, rate, is_green);
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+
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+ IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n",
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+ tbl->current_rate, is_green);
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+ return 0;
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+}
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+
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+/*
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+ * Set up search table for MIMO3
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+ */
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+static int rs_switch_to_mimo3(struct iwl_priv *priv,
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+ struct iwl_lq_sta *lq_sta,
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+ struct ieee80211_conf *conf,
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+ struct ieee80211_sta *sta,
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+ struct iwl_scale_tbl_info *tbl, int index)
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+{
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+ u16 rate_mask;
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+ s32 rate;
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+ s8 is_green = lq_sta->is_green;
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+
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+ if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
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+ return -1;
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+
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+ if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
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+ == WLAN_HT_CAP_SM_PS_STATIC)
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+ return -1;
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+
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+ /* Need both Tx chains/antennas to support MIMO */
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+ if (priv->hw_params.tx_chains_num < 3)
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+ return -1;
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+
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+ IWL_DEBUG_RATE(priv, "LQ: try to switch to MIMO3\n");
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+
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+ tbl->lq_type = LQ_MIMO3;
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+ tbl->is_dup = lq_sta->is_dup;
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+ tbl->action = 0;
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+ rate_mask = lq_sta->active_mimo3_rate;
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+
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+ if (priv->current_ht_config.supported_chan_width
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+ == IWL_CHANNEL_WIDTH_40MHZ)
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+ tbl->is_fat = 1;
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+ else
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+ tbl->is_fat = 0;
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+
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+ /* FIXME: - don't toggle SGI here
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+ if (tbl->is_fat) {
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+ if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
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+ tbl->is_SGI = 1;
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+ else
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+ tbl->is_SGI = 0;
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+ } else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
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+ tbl->is_SGI = 1;
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+ else
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+ tbl->is_SGI = 0;
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+ */
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+
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+ rs_set_expected_tpt_table(lq_sta, tbl);
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+
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+ rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
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+ IWL_DEBUG_RATE(priv, "LQ: MIMO3 best rate %d mask %X\n",
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+ rate, rate_mask);
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if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
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IWL_DEBUG_RATE(priv, "Can't switch with index %d rate mask %x\n",
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rate, rate_mask);
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@@ -1342,9 +1455,29 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
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goto out;
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}
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break;
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+
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+ case IWL_LEGACY_SWITCH_MIMO3_ABC:
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+ IWL_DEBUG_RATE(priv, "LQ: Legacy switch to MIMO3\n");
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+
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+ /* Set up search table to try MIMO3 */
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+ memcpy(search_tbl, tbl, sz);
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+ search_tbl->is_SGI = 0;
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+
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+ search_tbl->ant_type = ANT_ABC;
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+
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+ if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
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+ break;
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+
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+ ret = rs_switch_to_mimo3(priv, lq_sta, conf, sta,
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+ search_tbl, index);
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+ if (!ret) {
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+ lq_sta->action_counter = 0;
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+ goto out;
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+ }
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+ break;
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}
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tbl->action++;
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- if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
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+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC)
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tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
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if (tbl->action == start_action)
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@@ -1357,7 +1490,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
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out:
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lq_sta->search_better_tbl = 1;
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tbl->action++;
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- if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
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+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC)
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tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
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return 0;
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@@ -1457,9 +1590,23 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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rate_n_flags_from_tbl(priv, search_tbl,
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index, is_green);
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goto out;
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+ case IWL_SISO_SWITCH_MIMO3_ABC:
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+ IWL_DEBUG_RATE(priv, "LQ: SISO switch to MIMO3\n");
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+ memcpy(search_tbl, tbl, sz);
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+ search_tbl->is_SGI = 0;
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+ search_tbl->ant_type = ANT_ABC;
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+
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+ if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
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+ break;
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+
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+ ret = rs_switch_to_mimo3(priv, lq_sta, conf, sta,
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+ search_tbl, index);
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+ if (!ret)
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+ goto out;
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+ break;
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}
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tbl->action++;
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- if (tbl->action > IWL_SISO_SWITCH_GI)
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+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC)
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tbl->action = IWL_SISO_SWITCH_ANTENNA1;
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if (tbl->action == start_action)
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@@ -1471,15 +1618,15 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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out:
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lq_sta->search_better_tbl = 1;
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tbl->action++;
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- if (tbl->action > IWL_SISO_SWITCH_GI)
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+ if (tbl->action > IWL_SISO_SWITCH_MIMO3_ABC)
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tbl->action = IWL_SISO_SWITCH_ANTENNA1;
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return 0;
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}
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/*
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- * Try to switch to new modulation mode from MIMO
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+ * Try to switch to new modulation mode from MIMO2
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*/
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-static int rs_move_mimo_to_other(struct iwl_priv *priv,
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+static int rs_move_mimo2_to_other(struct iwl_priv *priv,
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struct iwl_lq_sta *lq_sta,
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struct ieee80211_conf *conf,
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struct ieee80211_sta *sta, int index)
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@@ -1501,7 +1648,7 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
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switch (tbl->action) {
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case IWL_MIMO2_SWITCH_ANTENNA1:
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case IWL_MIMO2_SWITCH_ANTENNA2:
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- IWL_DEBUG_RATE(priv, "LQ: MIMO toggle Antennas\n");
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+ IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle Antennas\n");
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if (tx_chains_num <= 2)
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break;
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@@ -1549,9 +1696,9 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
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HT_SHORT_GI_40MHZ))
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break;
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- IWL_DEBUG_RATE(priv, "LQ: MIMO toggle SGI/NGI\n");
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+ IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle SGI/NGI\n");
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- /* Set up new search table for MIMO */
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+ /* Set up new search table for MIMO2 */
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memcpy(search_tbl, tbl, sz);
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search_tbl->is_SGI = !tbl->is_SGI;
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rs_set_expected_tpt_table(lq_sta, search_tbl);
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@@ -1571,9 +1718,24 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
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index, is_green);
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goto out;
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+ case IWL_MIMO2_SWITCH_MIMO3_ABC:
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+ IWL_DEBUG_RATE(priv, "LQ: MIMO2 switch to MIMO3\n");
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+ memcpy(search_tbl, tbl, sz);
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+ search_tbl->is_SGI = 0;
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+ search_tbl->ant_type = ANT_ABC;
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+
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+ if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
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+ break;
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+
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+ ret = rs_switch_to_mimo3(priv, lq_sta, conf, sta,
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+ search_tbl, index);
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+ if (!ret)
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+ goto out;
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+
|
|
|
+ break;
|
|
|
}
|
|
|
tbl->action++;
|
|
|
- if (tbl->action > IWL_MIMO2_SWITCH_GI)
|
|
|
+ if (tbl->action > IWL_MIMO2_SWITCH_MIMO3_ABC)
|
|
|
tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
|
|
|
|
|
|
if (tbl->action == start_action)
|
|
@@ -1584,12 +1746,149 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
|
|
|
out:
|
|
|
lq_sta->search_better_tbl = 1;
|
|
|
tbl->action++;
|
|
|
- if (tbl->action > IWL_MIMO2_SWITCH_GI)
|
|
|
+ if (tbl->action > IWL_MIMO2_SWITCH_MIMO3_ABC)
|
|
|
tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
+/*
|
|
|
+ * Try to switch to new modulation mode from MIMO3
|
|
|
+ */
|
|
|
+static int rs_move_mimo3_to_other(struct iwl_priv *priv,
|
|
|
+ struct iwl_lq_sta *lq_sta,
|
|
|
+ struct ieee80211_conf *conf,
|
|
|
+ struct ieee80211_sta *sta, int index)
|
|
|
+{
|
|
|
+ s8 is_green = lq_sta->is_green;
|
|
|
+ struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
|
|
|
+ struct iwl_scale_tbl_info *search_tbl =
|
|
|
+ &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
|
|
|
+ struct iwl_rate_scale_data *window = &(tbl->win[index]);
|
|
|
+ u32 sz = (sizeof(struct iwl_scale_tbl_info) -
|
|
|
+ (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
|
|
|
+ u8 start_action = tbl->action;
|
|
|
+ u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
|
|
|
+ u8 tx_chains_num = priv->hw_params.tx_chains_num;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ for (;;) {
|
|
|
+ lq_sta->action_counter++;
|
|
|
+ switch (tbl->action) {
|
|
|
+ case IWL_MIMO3_SWITCH_ANTENNA1:
|
|
|
+ case IWL_MIMO3_SWITCH_ANTENNA2:
|
|
|
+ IWL_DEBUG_RATE(priv, "LQ: MIMO3 toggle Antennas\n");
|
|
|
+
|
|
|
+ if (tx_chains_num <= 3)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (window->success_ratio >= IWL_RS_GOOD_RATIO)
|
|
|
+ break;
|
|
|
+
|
|
|
+ memcpy(search_tbl, tbl, sz);
|
|
|
+ if (rs_toggle_antenna(valid_tx_ant,
|
|
|
+ &search_tbl->current_rate, search_tbl))
|
|
|
+ goto out;
|
|
|
+ break;
|
|
|
+ case IWL_MIMO3_SWITCH_SISO_A:
|
|
|
+ case IWL_MIMO3_SWITCH_SISO_B:
|
|
|
+ case IWL_MIMO3_SWITCH_SISO_C:
|
|
|
+ IWL_DEBUG_RATE(priv, "LQ: MIMO3 switch to SISO\n");
|
|
|
+
|
|
|
+ /* Set up new search table for SISO */
|
|
|
+ memcpy(search_tbl, tbl, sz);
|
|
|
+
|
|
|
+ if (tbl->action == IWL_MIMO3_SWITCH_SISO_A)
|
|
|
+ search_tbl->ant_type = ANT_A;
|
|
|
+ else if (tbl->action == IWL_MIMO3_SWITCH_SISO_B)
|
|
|
+ search_tbl->ant_type = ANT_B;
|
|
|
+ else
|
|
|
+ search_tbl->ant_type = ANT_C;
|
|
|
+
|
|
|
+ if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
|
|
|
+ break;
|
|
|
+
|
|
|
+ ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
|
|
|
+ search_tbl, index);
|
|
|
+ if (!ret)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ break;
|
|
|
+
|
|
|
+ case IWL_MIMO3_SWITCH_MIMO2_AB:
|
|
|
+ case IWL_MIMO3_SWITCH_MIMO2_AC:
|
|
|
+ case IWL_MIMO3_SWITCH_MIMO2_BC:
|
|
|
+ IWL_DEBUG_RATE(priv, "LQ: MIMO3 switch to MIMO2\n");
|
|
|
+
|
|
|
+ memcpy(search_tbl, tbl, sz);
|
|
|
+ search_tbl->is_SGI = 0;
|
|
|
+ if (tbl->action == IWL_MIMO3_SWITCH_MIMO2_AB)
|
|
|
+ search_tbl->ant_type = ANT_AB;
|
|
|
+ else if (tbl->action == IWL_MIMO3_SWITCH_MIMO2_AC)
|
|
|
+ search_tbl->ant_type = ANT_AC;
|
|
|
+ else
|
|
|
+ search_tbl->ant_type = ANT_BC;
|
|
|
+
|
|
|
+ if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
|
|
|
+ break;
|
|
|
+
|
|
|
+ ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
|
|
|
+ search_tbl, index);
|
|
|
+ if (!ret)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ break;
|
|
|
+
|
|
|
+ case IWL_MIMO3_SWITCH_GI:
|
|
|
+ if (!tbl->is_fat &&
|
|
|
+ !(priv->current_ht_config.sgf &
|
|
|
+ HT_SHORT_GI_20MHZ))
|
|
|
+ break;
|
|
|
+ if (tbl->is_fat &&
|
|
|
+ !(priv->current_ht_config.sgf &
|
|
|
+ HT_SHORT_GI_40MHZ))
|
|
|
+ break;
|
|
|
+
|
|
|
+ IWL_DEBUG_RATE(priv, "LQ: MIMO3 toggle SGI/NGI\n");
|
|
|
+
|
|
|
+ /* Set up new search table for MIMO */
|
|
|
+ memcpy(search_tbl, tbl, sz);
|
|
|
+ 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->is_SGI) {
|
|
|
+ s32 tpt = lq_sta->last_tpt / 100;
|
|
|
+ if (tpt >= search_tbl->expected_tpt[index])
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ search_tbl->current_rate =
|
|
|
+ rate_n_flags_from_tbl(priv, search_tbl,
|
|
|
+ index, is_green);
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ tbl->action++;
|
|
|
+ if (tbl->action > IWL_MIMO3_SWITCH_GI)
|
|
|
+ tbl->action = IWL_MIMO3_SWITCH_ANTENNA1;
|
|
|
+
|
|
|
+ if (tbl->action == start_action)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ search_tbl->lq_type = LQ_NONE;
|
|
|
+ return 0;
|
|
|
+ out:
|
|
|
+ lq_sta->search_better_tbl = 1;
|
|
|
+ tbl->action++;
|
|
|
+ if (tbl->action > IWL_MIMO3_SWITCH_GI)
|
|
|
+ tbl->action = IWL_MIMO3_SWITCH_ANTENNA1;
|
|
|
+ return 0;
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
/*
|
|
|
* Check whether we should continue using same modulation mode, or
|
|
|
* begin search for a new mode, based on:
|
|
@@ -1616,8 +1915,8 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta)
|
|
|
/* Elapsed time using current modulation mode */
|
|
|
if (lq_sta->flush_timer)
|
|
|
flush_interval_passed =
|
|
|
- time_after(jiffies,
|
|
|
- (unsigned long)(lq_sta->flush_timer +
|
|
|
+ time_after(jiffies,
|
|
|
+ (unsigned long)(lq_sta->flush_timer +
|
|
|
IWL_RATE_SCALE_FLUSH_INTVL));
|
|
|
|
|
|
/*
|
|
@@ -1951,6 +2250,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
|
|
|
update_lq = 1;
|
|
|
index = low;
|
|
|
}
|
|
|
+
|
|
|
break;
|
|
|
case 1:
|
|
|
/* Increase starting rate, update uCode's rate table */
|
|
@@ -1997,8 +2297,10 @@ lq_update:
|
|
|
rs_move_legacy_other(priv, lq_sta, conf, sta, index);
|
|
|
else if (is_siso(tbl->lq_type))
|
|
|
rs_move_siso_to_other(priv, lq_sta, conf, sta, index);
|
|
|
+ else if (is_mimo2(tbl->lq_type))
|
|
|
+ rs_move_mimo2_to_other(priv, lq_sta, conf, sta, index);
|
|
|
else
|
|
|
- rs_move_mimo_to_other(priv, lq_sta, conf, sta, index);
|
|
|
+ rs_move_mimo3_to_other(priv, lq_sta, conf, sta, index);
|
|
|
|
|
|
/* If new "search" mode was selected, set up in uCode table */
|
|
|
if (lq_sta->search_better_tbl) {
|
|
@@ -2014,8 +2316,11 @@ lq_update:
|
|
|
tbl->current_rate, index);
|
|
|
rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
|
|
|
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
|
|
|
- }
|
|
|
+ } else
|
|
|
+ done_search = 1;
|
|
|
+ }
|
|
|
|
|
|
+ if (done_search && !lq_sta->stay_in_tbl) {
|
|
|
/* If the "active" (non-search) mode was legacy,
|
|
|
* and we've tried switching antennas,
|
|
|
* but we haven't been able to try HT modes (not available),
|
|
@@ -2050,17 +2355,6 @@ lq_update:
|
|
|
lq_sta->action_counter = 0;
|
|
|
rs_set_stay_in_table(priv, 0, lq_sta);
|
|
|
}
|
|
|
-
|
|
|
- /*
|
|
|
- * Else, don't search for a new modulation mode.
|
|
|
- * Put new timestamp in stay-in-modulation-mode flush timer if:
|
|
|
- * 1) Not changing rates right now
|
|
|
- * 2) Not just finishing up a search
|
|
|
- * 3) flush timer is empty
|
|
|
- */
|
|
|
- } else {
|
|
|
- if ((!update_lq) && (!done_search) && (!lq_sta->flush_timer))
|
|
|
- lq_sta->flush_timer = jiffies;
|
|
|
}
|
|
|
|
|
|
out:
|
|
@@ -2173,13 +2467,15 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
|
|
|
|
|
|
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
|
|
|
!lq_sta->ibss_sta_added) {
|
|
|
- u8 sta_id = iwl_find_station(priv, hdr->addr1);
|
|
|
+ u8 sta_id = priv->cfg->ops->smgmt->find_station(priv,
|
|
|
+ hdr->addr1);
|
|
|
|
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
|
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n",
|
|
|
hdr->addr1);
|
|
|
- sta_id = iwl_add_station_flags(priv, hdr->addr1,
|
|
|
- 0, CMD_ASYNC, NULL);
|
|
|
+ sta_id = priv->cfg->ops->smgmt->add_station(priv,
|
|
|
+ hdr->addr1, 0,
|
|
|
+ CMD_ASYNC, NULL);
|
|
|
}
|
|
|
if ((sta_id != IWL_INVALID_STATION)) {
|
|
|
lq_sta->lq.sta_id = sta_id;
|
|
@@ -2246,15 +2542,17 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
|
|
|
|
|
|
lq_sta->ibss_sta_added = 0;
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_AP) {
|
|
|
- u8 sta_id = iwl_find_station(priv, sta->addr);
|
|
|
+ u8 sta_id = priv->cfg->ops->smgmt->find_station(priv,
|
|
|
+ sta->addr);
|
|
|
|
|
|
/* for IBSS the call are from tasklet */
|
|
|
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
|
|
|
|
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
|
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
|
|
|
- sta_id = iwl_add_station_flags(priv, sta->addr,
|
|
|
- 0, CMD_ASYNC, NULL);
|
|
|
+ sta_id = priv->cfg->ops->smgmt->add_station(priv,
|
|
|
+ sta->addr, 0,
|
|
|
+ CMD_ASYNC, NULL);
|
|
|
}
|
|
|
if ((sta_id != IWL_INVALID_STATION)) {
|
|
|
lq_sta->lq.sta_id = sta_id;
|
|
@@ -2539,6 +2837,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
|
|
|
char *buff;
|
|
|
int desc = 0;
|
|
|
int i = 0;
|
|
|
+ int index = 0;
|
|
|
ssize_t ret;
|
|
|
|
|
|
struct iwl_lq_sta *lq_sta = file->private_data;
|
|
@@ -2570,6 +2869,8 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
|
|
|
(tbl->is_fat) ? "40MHz" : "20MHz");
|
|
|
desc += sprintf(buff+desc, " %s\n", (tbl->is_SGI) ? "SGI" : "");
|
|
|
}
|
|
|
+ desc += sprintf(buff+desc, "last tx rate=0x%X\n",
|
|
|
+ lq_sta->last_rate_n_flags);
|
|
|
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,
|
|
@@ -2590,10 +2891,19 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
|
|
|
lq_sta->lq.general_params.start_rate_index[2],
|
|
|
lq_sta->lq.general_params.start_rate_index[3]);
|
|
|
|
|
|
-
|
|
|
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
|
|
|
- desc += sprintf(buff+desc, " rate[%d] 0x%X\n",
|
|
|
- i, le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags));
|
|
|
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
|
|
|
+ index = iwl_hwrate_to_plcp_idx(
|
|
|
+ le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags));
|
|
|
+ if (is_legacy(tbl->lq_type)) {
|
|
|
+ desc += sprintf(buff+desc, " rate[%d] 0x%X %smbps\n",
|
|
|
+ i, le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags),
|
|
|
+ iwl_rate_mcs[index].mbps);
|
|
|
+ } else {
|
|
|
+ desc += sprintf(buff+desc, " rate[%d] 0x%X %smbps (%s)\n",
|
|
|
+ i, le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags),
|
|
|
+ iwl_rate_mcs[index].mbps, iwl_rate_mcs[index].mcs);
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
|
|
|
kfree(buff);
|