From 1c055e55a242a33e574e48be530e06770a210dcd Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 19 Feb 2024 03:26:26 +0000
Subject: [PATCH] add r8169 read mac form eeprom
---
kernel/drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 653 ++++++++++++++++++++++++++++++++--------------------------
1 files changed, 357 insertions(+), 296 deletions(-)
diff --git a/kernel/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/kernel/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index 6f4508d..ed7382e 100644
--- a/kernel/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/kernel/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/******************************************************************************
*
- * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2014, 2018 - 2020 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
- *
- * 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
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <linuxwifi@intel.com>
@@ -615,7 +603,7 @@
struct iwl_lq_sta *lq_data, u8 tid,
struct ieee80211_sta *sta)
{
- int ret = -EAGAIN;
+ int ret;
IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
sta->addr, tid);
@@ -841,6 +829,12 @@
ucode_rate |= RATE_MCS_CCK_MSK;
return ucode_rate;
}
+
+ /* set RTS protection for all non legacy rates
+ * This helps with congested environments reducing the conflict cost to
+ * RTS retries only, instead of the entire BA packet.
+ */
+ ucode_rate |= RATE_MCS_RTS_REQUIRED_MSK;
if (is_ht(rate)) {
if (index < IWL_FIRST_HT_RATE || index > IWL_LAST_HT_RATE) {
@@ -1208,239 +1202,6 @@
return tid;
}
-void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
- int tid, struct ieee80211_tx_info *info, bool ndp)
-{
- int legacy_success;
- int retries;
- int i;
- struct iwl_lq_cmd *table;
- u32 lq_hwrate;
- struct rs_rate lq_rate, tx_resp_rate;
- struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
- u32 tlc_info = (uintptr_t)info->status.status_driver_data[0];
- u8 reduced_txp = tlc_info & RS_DRV_DATA_TXP_MSK;
- u8 lq_color = RS_DRV_DATA_LQ_COLOR_GET(tlc_info);
- u32 tx_resp_hwrate = (uintptr_t)info->status.status_driver_data[1];
- struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
- struct iwl_lq_sta *lq_sta = &mvmsta->lq_sta.rs_drv;
-
- /* Treat uninitialized rate scaling data same as non-existing. */
- if (!lq_sta) {
- IWL_DEBUG_RATE(mvm, "Station rate scaling not created yet.\n");
- return;
- } else if (!lq_sta->pers.drv) {
- IWL_DEBUG_RATE(mvm, "Rate scaling not initialized yet.\n");
- return;
- }
-
- /* This packet was aggregated but doesn't carry status info */
- if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
- !(info->flags & IEEE80211_TX_STAT_AMPDU))
- return;
-
- if (rs_rate_from_ucode_rate(tx_resp_hwrate, info->band,
- &tx_resp_rate)) {
- WARN_ON_ONCE(1);
- return;
- }
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* Disable last tx check if we are debugging with fixed rate but
- * update tx stats */
- if (lq_sta->pers.dbg_fixed_rate) {
- int index = tx_resp_rate.index;
- enum rs_column column;
- int attempts, success;
-
- column = rs_get_column_from_rate(&tx_resp_rate);
- if (WARN_ONCE(column == RS_COLUMN_INVALID,
- "Can't map rate 0x%x to column",
- tx_resp_hwrate))
- return;
-
- if (info->flags & IEEE80211_TX_STAT_AMPDU) {
- attempts = info->status.ampdu_len;
- success = info->status.ampdu_ack_len;
- } else {
- attempts = info->status.rates[0].count;
- success = !!(info->flags & IEEE80211_TX_STAT_ACK);
- }
-
- lq_sta->pers.tx_stats[column][index].total += attempts;
- lq_sta->pers.tx_stats[column][index].success += success;
-
- IWL_DEBUG_RATE(mvm, "Fixed rate 0x%x success %d attempts %d\n",
- tx_resp_hwrate, success, attempts);
- return;
- }
-#endif
-
- if (time_after(jiffies,
- (unsigned long)(lq_sta->last_tx +
- (IWL_MVM_RS_IDLE_TIMEOUT * HZ)))) {
- IWL_DEBUG_RATE(mvm, "Tx idle for too long. reinit rs\n");
- iwl_mvm_rs_rate_init(mvm, sta, info->band, true);
- return;
- }
- lq_sta->last_tx = jiffies;
-
- /* Ignore this Tx frame response if its initial rate doesn't match
- * that of latest Link Quality command. There may be stragglers
- * from a previous Link Quality command, but we're no longer interested
- * in those; they're either from the "active" mode while we're trying
- * 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).
- */
- table = &lq_sta->lq;
- lq_hwrate = le32_to_cpu(table->rs_table[0]);
- if (rs_rate_from_ucode_rate(lq_hwrate, info->band, &lq_rate)) {
- WARN_ON_ONCE(1);
- return;
- }
-
- /* Here we actually compare this rate to the latest LQ command */
- if (lq_color != LQ_FLAG_COLOR_GET(table->flags)) {
- IWL_DEBUG_RATE(mvm,
- "tx resp color 0x%x does not match 0x%x\n",
- lq_color, LQ_FLAG_COLOR_GET(table->flags));
-
- /*
- * Since rates mis-match, the last LQ command may have failed.
- * After IWL_MISSED_RATE_MAX mis-matches, resync the uCode with
- * ... driver.
- */
- lq_sta->missed_rate_counter++;
- if (lq_sta->missed_rate_counter > IWL_MVM_RS_MISSED_RATE_MAX) {
- lq_sta->missed_rate_counter = 0;
- IWL_DEBUG_RATE(mvm,
- "Too many rates mismatch. Send sync LQ. rs_state %d\n",
- lq_sta->rs_state);
- iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, false);
- }
- /* Regardless, ignore this status info for outdated rate */
- return;
- } else
- /* Rate did match, so reset the missed_rate_counter */
- lq_sta->missed_rate_counter = 0;
-
- if (!lq_sta->search_better_tbl) {
- curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- } else {
- curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- }
-
- if (WARN_ON_ONCE(!rs_rate_column_match(&lq_rate, &curr_tbl->rate))) {
- IWL_DEBUG_RATE(mvm,
- "Neither active nor search matches tx rate\n");
- tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- rs_dump_rate(mvm, &tmp_tbl->rate, "ACTIVE");
- tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- rs_dump_rate(mvm, &tmp_tbl->rate, "SEARCH");
- rs_dump_rate(mvm, &lq_rate, "ACTUAL");
-
- /*
- * no matching table found, let's by-pass the data collection
- * and continue to perform rate scale to find the rate table
- */
- rs_stay_in_table(lq_sta, true);
- goto done;
- }
-
- /*
- * Updating the frame history depends on whether packets were
- * aggregated.
- *
- * For aggregation, all packets were transmitted at the same rate, the
- * first index into rate scale table.
- */
- if (info->flags & IEEE80211_TX_STAT_AMPDU) {
- rs_collect_tpc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,
- info->status.ampdu_len,
- info->status.ampdu_ack_len,
- reduced_txp);
-
- /* ampdu_ack_len = 0 marks no BA was received. For TLC, treat
- * it as a single frame loss as we don't want the success ratio
- * to dip too quickly because a BA wasn't received.
- * For TPC, there's no need for this optimisation since we want
- * to recover very quickly from a bad power reduction and,
- * therefore we'd like the success ratio to get an immediate hit
- * when failing to get a BA, so we'd switch back to a lower or
- * zero power reduction. When FW transmits agg with a rate
- * different from the initial rate, it will not use reduced txp
- * and will send BA notification twice (one empty with reduced
- * txp equal to the value from LQ and one with reduced txp 0).
- * We need to update counters for each txp level accordingly.
- */
- if (info->status.ampdu_ack_len == 0)
- info->status.ampdu_len = 1;
-
- rs_collect_tlc_data(mvm, mvmsta, tid, curr_tbl, tx_resp_rate.index,
- info->status.ampdu_len,
- info->status.ampdu_ack_len);
-
- /* Update success/fail counts if not searching for new mode */
- if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) {
- lq_sta->total_success += info->status.ampdu_ack_len;
- lq_sta->total_failed += (info->status.ampdu_len -
- info->status.ampdu_ack_len);
- }
- } else {
- /* For legacy, update frame history with for each Tx retry. */
- retries = info->status.rates[0].count - 1;
- /* HW doesn't send more than 15 retries */
- retries = min(retries, 15);
-
- /* The last transmission may have been successful */
- legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK);
- /* Collect data for each rate used during failed TX attempts */
- for (i = 0; i <= retries; ++i) {
- lq_hwrate = le32_to_cpu(table->rs_table[i]);
- if (rs_rate_from_ucode_rate(lq_hwrate, info->band,
- &lq_rate)) {
- WARN_ON_ONCE(1);
- return;
- }
-
- /*
- * Only collect stats if retried rate is in the same RS
- * table as active/search.
- */
- if (rs_rate_column_match(&lq_rate, &curr_tbl->rate))
- tmp_tbl = curr_tbl;
- else if (rs_rate_column_match(&lq_rate,
- &other_tbl->rate))
- tmp_tbl = other_tbl;
- else
- continue;
-
- rs_collect_tpc_data(mvm, lq_sta, tmp_tbl,
- tx_resp_rate.index, 1,
- i < retries ? 0 : legacy_success,
- reduced_txp);
- rs_collect_tlc_data(mvm, mvmsta, tid, tmp_tbl,
- tx_resp_rate.index, 1,
- i < retries ? 0 : legacy_success);
- }
-
- /* Update success/fail counts if not searching for new mode */
- if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) {
- lq_sta->total_success += legacy_success;
- lq_sta->total_failed += retries + (1 - legacy_success);
- }
- }
- /* The last TX rate is cached in lq_sta; it's set in if/else above */
- lq_sta->last_rate_n_flags = lq_hwrate;
- IWL_DEBUG_RATE(mvm, "reduced txpower: %d\n", reduced_txp);
-done:
- /* See if there's a better rate or modulation mode to try. */
- if (sta->supp_rates[info->band])
- rs_rate_scale_perform(mvm, sta, lq_sta, tid, ndp);
-}
-
/*
* mac80211 sends us Tx status
*/
@@ -1453,8 +1214,9 @@
struct iwl_op_mode *op_mode = mvm_r;
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
- if (!iwl_mvm_sta_from_mac80211(sta)->vif)
+ if (!mvmsta->vif)
return;
if (!ieee80211_is_data(hdr->frame_control) ||
@@ -1595,6 +1357,18 @@
tbl->expected_tpt = rs_get_expected_tpt_table(lq_sta, column, rate->bw);
}
+/* rs uses two tables, one is active and the second is for searching better
+ * configuration. This function, according to the index of the currently
+ * active table returns the search table, which is located at the
+ * index complementary to 1 according to the active table (active = 1,
+ * search = 0 or active = 0, search = 1).
+ * Since lq_info is an arary of size 2, make sure index cannot be out of bounds.
+ */
+static inline u8 rs_search_tbl(u8 active_tbl)
+{
+ return (active_tbl ^ 1) & 1;
+}
+
static s32 rs_get_best_rate(struct iwl_mvm *mvm,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl, /* "search" */
@@ -1643,8 +1417,27 @@
static u32 rs_bw_from_sta_bw(struct ieee80211_sta *sta)
{
+ struct ieee80211_sta_vht_cap *sta_vht_cap = &sta->vht_cap;
+ struct ieee80211_vht_cap vht_cap = {
+ .vht_cap_info = cpu_to_le32(sta_vht_cap->cap),
+ .supp_mcs = sta_vht_cap->vht_mcs,
+ };
+
switch (sta->bandwidth) {
case IEEE80211_STA_RX_BW_160:
+ /*
+ * Don't use 160 MHz if VHT extended NSS support
+ * says we cannot use 2 streams, we don't want to
+ * deal with this.
+ * We only check MCS 0 - they will support that if
+ * we got here at all and we don't care which MCS,
+ * we want to determine a more global state.
+ */
+ if (ieee80211_get_vht_max_nss(&vht_cap,
+ IEEE80211_VHT_CHANWIDTH_160MHZ,
+ 0, true,
+ sta->rx_nss) < sta->rx_nss)
+ return RATE_MCS_CHAN_WIDTH_80;
return RATE_MCS_CHAN_WIDTH_160;
case IEEE80211_STA_RX_BW_80:
return RATE_MCS_CHAN_WIDTH_80;
@@ -1744,6 +1537,9 @@
enum rs_action scale_action)
{
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+ int i;
+
+ sta->max_amsdu_len = rs_fw_get_max_amsdu_len(sta);
/*
* In case TLC offload is not active amsdu_enabled is either 0xFFFF
@@ -1756,7 +1552,25 @@
else
mvmsta->amsdu_enabled = 0xFFFF;
- mvmsta->max_amsdu_len = sta->max_amsdu_len;
+ if (mvmsta->vif->bss_conf.he_support &&
+ !iwlwifi_mod_params.disable_11ax)
+ mvmsta->max_amsdu_len = sta->max_amsdu_len;
+ else
+ mvmsta->max_amsdu_len = min_t(int, sta->max_amsdu_len, 8500);
+
+ sta->max_rc_amsdu_len = mvmsta->max_amsdu_len;
+
+ for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
+ if (mvmsta->amsdu_enabled)
+ sta->max_tid_amsdu_len[i] =
+ iwl_mvm_max_amsdu_size(mvm, sta, i);
+ else
+ /*
+ * Not so elegant, but this will effectively
+ * prevent AMSDU on this TID
+ */
+ sta->max_tid_amsdu_len[i] = 1;
+ }
}
/*
@@ -1768,7 +1582,7 @@
struct iwl_scale_tbl_info *tbl)
{
rs_fill_lq_cmd(mvm, sta, lq_sta, &tbl->rate);
- iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, false);
+ iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq);
}
static bool rs_tweak_rate_tbl(struct iwl_mvm *mvm,
@@ -1777,7 +1591,7 @@
struct iwl_scale_tbl_info *tbl,
enum rs_action scale_action)
{
- if (sta->bandwidth != IEEE80211_STA_RX_BW_80)
+ if (rs_bw_from_sta_bw(sta) != RATE_MCS_CHAN_WIDTH_80)
return false;
if (!is_vht_siso(&tbl->rate))
@@ -1905,9 +1719,9 @@
struct ieee80211_sta *sta,
enum rs_column col_id)
{
- struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ 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)]);
+ &lq_sta->lq_info[rs_search_tbl(lq_sta->active_tbl)];
struct rs_rate *rate = &search_tbl->rate;
const struct rs_tx_column *column = &rs_tx_columns[col_id];
const struct rs_tx_column *curr_column = &rs_tx_columns[tbl->column];
@@ -2315,7 +2129,7 @@
if (!lq_sta->search_better_tbl)
active_tbl = lq_sta->active_tbl;
else
- active_tbl = 1 - lq_sta->active_tbl;
+ active_tbl = rs_search_tbl(lq_sta->active_tbl);
tbl = &(lq_sta->lq_info[active_tbl]);
rate = &tbl->rate;
@@ -2539,7 +2353,7 @@
/* If new "search" mode was selected, set up in uCode table */
if (lq_sta->search_better_tbl) {
/* Access the "search" table, clear its history. */
- tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+ tbl = &lq_sta->lq_info[rs_search_tbl(lq_sta->active_tbl)];
rs_rate_scale_clear_tbl_windows(mvm, tbl);
/* Use new "search" start rate */
@@ -2870,7 +2684,7 @@
static void rs_initialize_lq(struct iwl_mvm *mvm,
struct ieee80211_sta *sta,
struct iwl_lq_sta *lq_sta,
- enum nl80211_band band, bool update)
+ enum nl80211_band band)
{
struct iwl_scale_tbl_info *tbl;
struct rs_rate *rate;
@@ -2882,7 +2696,7 @@
if (!lq_sta->search_better_tbl)
active_tbl = lq_sta->active_tbl;
else
- active_tbl = 1 - lq_sta->active_tbl;
+ active_tbl = rs_search_tbl(lq_sta->active_tbl);
tbl = &(lq_sta->lq_info[active_tbl]);
rate = &tbl->rate;
@@ -2900,7 +2714,7 @@
rs_set_expected_tpt_table(lq_sta, tbl);
rs_fill_lq_cmd(mvm, sta, lq_sta, rate);
/* TODO restore station should remember the lq cmd */
- iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, !update);
+ iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq);
}
static void rs_drv_get_rate(void *mvm_r, struct ieee80211_sta *sta,
@@ -2922,10 +2736,6 @@
sta = NULL;
mvm_sta = NULL;
}
-
- /* Send management frames and NO_ACK data using lowest rate. */
- if (rate_control_send_low(sta, mvm_sta, txrc))
- return;
if (!mvm_sta)
return;
@@ -3153,7 +2963,7 @@
* Called after adding a new station to initialize rate scaling
*/
static void rs_drv_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
- enum nl80211_band band, bool update)
+ enum nl80211_band band)
{
int i, j;
struct ieee80211_hw *hw = mvm->hw;
@@ -3163,6 +2973,8 @@
struct iwl_lq_sta *lq_sta = &mvmsta->lq_sta.rs_drv;
struct ieee80211_supported_band *sband;
unsigned long supp; /* must be unsigned long for for_each_set_bit */
+
+ lockdep_assert_held(&mvmsta->lq_sta.rs_drv.pers.lock);
/* clear all non-persistent lq data */
memset(lq_sta, 0, offsetof(typeof(*lq_sta), pers));
@@ -3224,7 +3036,7 @@
/* These values will be overridden later */
lq_sta->lq.single_stream_ant_msk =
- first_antenna(iwl_mvm_get_valid_tx_ant(mvm));
+ iwl_mvm_bt_coex_get_single_ant_msk(mvm, iwl_mvm_get_valid_tx_ant(mvm));
lq_sta->lq.dual_stream_ant_msk = ANT_AB;
/* as default allow aggregation for all tids */
@@ -3233,7 +3045,7 @@
#ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_reset_frame_stats(mvm);
#endif
- rs_initialize_lq(mvm, sta, lq_sta, band, update);
+ rs_initialize_lq(mvm, sta, lq_sta, band);
}
static void rs_drv_rate_update(void *mvm_r,
@@ -3254,6 +3066,254 @@
ieee80211_stop_tx_ba_session(sta, tid);
iwl_mvm_rs_rate_init(mvm, sta, sband->band, true);
+}
+
+static void __iwl_mvm_rs_tx_status(struct iwl_mvm *mvm,
+ struct ieee80211_sta *sta,
+ int tid, struct ieee80211_tx_info *info,
+ bool ndp)
+{
+ int legacy_success;
+ int retries;
+ int i;
+ struct iwl_lq_cmd *table;
+ u32 lq_hwrate;
+ struct rs_rate lq_rate, tx_resp_rate;
+ struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
+ u32 tlc_info = (uintptr_t)info->status.status_driver_data[0];
+ u8 reduced_txp = tlc_info & RS_DRV_DATA_TXP_MSK;
+ u8 lq_color = RS_DRV_DATA_LQ_COLOR_GET(tlc_info);
+ u32 tx_resp_hwrate = (uintptr_t)info->status.status_driver_data[1];
+ struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+ struct iwl_lq_sta *lq_sta = &mvmsta->lq_sta.rs_drv;
+
+ if (!lq_sta->pers.drv) {
+ IWL_DEBUG_RATE(mvm, "Rate scaling not initialized yet.\n");
+ return;
+ }
+
+ /* This packet was aggregated but doesn't carry status info */
+ if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
+ !(info->flags & IEEE80211_TX_STAT_AMPDU))
+ return;
+
+ if (rs_rate_from_ucode_rate(tx_resp_hwrate, info->band,
+ &tx_resp_rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* Disable last tx check if we are debugging with fixed rate but
+ * update tx stats
+ */
+ if (lq_sta->pers.dbg_fixed_rate) {
+ int index = tx_resp_rate.index;
+ enum rs_column column;
+ int attempts, success;
+
+ column = rs_get_column_from_rate(&tx_resp_rate);
+ if (WARN_ONCE(column == RS_COLUMN_INVALID,
+ "Can't map rate 0x%x to column",
+ tx_resp_hwrate))
+ return;
+
+ if (info->flags & IEEE80211_TX_STAT_AMPDU) {
+ attempts = info->status.ampdu_len;
+ success = info->status.ampdu_ack_len;
+ } else {
+ attempts = info->status.rates[0].count;
+ success = !!(info->flags & IEEE80211_TX_STAT_ACK);
+ }
+
+ lq_sta->pers.tx_stats[column][index].total += attempts;
+ lq_sta->pers.tx_stats[column][index].success += success;
+
+ IWL_DEBUG_RATE(mvm, "Fixed rate 0x%x success %d attempts %d\n",
+ tx_resp_hwrate, success, attempts);
+ return;
+ }
+#endif
+
+ if (time_after(jiffies,
+ (unsigned long)(lq_sta->last_tx +
+ (IWL_MVM_RS_IDLE_TIMEOUT * HZ)))) {
+ IWL_DEBUG_RATE(mvm, "Tx idle for too long. reinit rs\n");
+ /* reach here only in case of driver RS, call directly
+ * the unlocked version
+ */
+ rs_drv_rate_init(mvm, sta, info->band);
+ return;
+ }
+ lq_sta->last_tx = jiffies;
+
+ /* Ignore this Tx frame response if its initial rate doesn't match
+ * that of latest Link Quality command. There may be stragglers
+ * from a previous Link Quality command, but we're no longer interested
+ * in those; they're either from the "active" mode while we're trying
+ * 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).
+ */
+ table = &lq_sta->lq;
+ lq_hwrate = le32_to_cpu(table->rs_table[0]);
+ if (rs_rate_from_ucode_rate(lq_hwrate, info->band, &lq_rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+ /* Here we actually compare this rate to the latest LQ command */
+ if (lq_color != LQ_FLAG_COLOR_GET(table->flags)) {
+ IWL_DEBUG_RATE(mvm,
+ "tx resp color 0x%x does not match 0x%x\n",
+ lq_color, LQ_FLAG_COLOR_GET(table->flags));
+
+ /* Since rates mis-match, the last LQ command may have failed.
+ * After IWL_MISSED_RATE_MAX mis-matches, resync the uCode with
+ * ... driver.
+ */
+ lq_sta->missed_rate_counter++;
+ if (lq_sta->missed_rate_counter > IWL_MVM_RS_MISSED_RATE_MAX) {
+ lq_sta->missed_rate_counter = 0;
+ IWL_DEBUG_RATE(mvm,
+ "Too many rates mismatch. Send sync LQ. rs_state %d\n",
+ lq_sta->rs_state);
+ iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq);
+ }
+ /* Regardless, ignore this status info for outdated rate */
+ return;
+ }
+
+ /* Rate did match, so reset the missed_rate_counter */
+ lq_sta->missed_rate_counter = 0;
+
+ if (!lq_sta->search_better_tbl) {
+ curr_tbl = &lq_sta->lq_info[lq_sta->active_tbl];
+ other_tbl = &lq_sta->lq_info[rs_search_tbl(lq_sta->active_tbl)];
+ } else {
+ curr_tbl = &lq_sta->lq_info[rs_search_tbl(lq_sta->active_tbl)];
+ other_tbl = &lq_sta->lq_info[lq_sta->active_tbl];
+ }
+
+ if (WARN_ON_ONCE(!rs_rate_column_match(&lq_rate, &curr_tbl->rate))) {
+ IWL_DEBUG_RATE(mvm,
+ "Neither active nor search matches tx rate\n");
+ tmp_tbl = &lq_sta->lq_info[lq_sta->active_tbl];
+ rs_dump_rate(mvm, &tmp_tbl->rate, "ACTIVE");
+ tmp_tbl = &lq_sta->lq_info[rs_search_tbl(lq_sta->active_tbl)];
+ rs_dump_rate(mvm, &tmp_tbl->rate, "SEARCH");
+ rs_dump_rate(mvm, &lq_rate, "ACTUAL");
+
+ /* no matching table found, let's by-pass the data collection
+ * and continue to perform rate scale to find the rate table
+ */
+ rs_stay_in_table(lq_sta, true);
+ goto done;
+ }
+
+ /* Updating the frame history depends on whether packets were
+ * aggregated.
+ *
+ * For aggregation, all packets were transmitted at the same rate, the
+ * first index into rate scale table.
+ */
+ if (info->flags & IEEE80211_TX_STAT_AMPDU) {
+ rs_collect_tpc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,
+ info->status.ampdu_len,
+ info->status.ampdu_ack_len,
+ reduced_txp);
+
+ /* ampdu_ack_len = 0 marks no BA was received. For TLC, treat
+ * it as a single frame loss as we don't want the success ratio
+ * to dip too quickly because a BA wasn't received.
+ * For TPC, there's no need for this optimisation since we want
+ * to recover very quickly from a bad power reduction and,
+ * therefore we'd like the success ratio to get an immediate hit
+ * when failing to get a BA, so we'd switch back to a lower or
+ * zero power reduction. When FW transmits agg with a rate
+ * different from the initial rate, it will not use reduced txp
+ * and will send BA notification twice (one empty with reduced
+ * txp equal to the value from LQ and one with reduced txp 0).
+ * We need to update counters for each txp level accordingly.
+ */
+ if (info->status.ampdu_ack_len == 0)
+ info->status.ampdu_len = 1;
+
+ rs_collect_tlc_data(mvm, mvmsta, tid, curr_tbl,
+ tx_resp_rate.index,
+ info->status.ampdu_len,
+ info->status.ampdu_ack_len);
+
+ /* Update success/fail counts if not searching for new mode */
+ if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) {
+ lq_sta->total_success += info->status.ampdu_ack_len;
+ lq_sta->total_failed += (info->status.ampdu_len -
+ info->status.ampdu_ack_len);
+ }
+ } else {
+ /* For legacy, update frame history with for each Tx retry. */
+ retries = info->status.rates[0].count - 1;
+ /* HW doesn't send more than 15 retries */
+ retries = min(retries, 15);
+
+ /* The last transmission may have been successful */
+ legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK);
+ /* Collect data for each rate used during failed TX attempts */
+ for (i = 0; i <= retries; ++i) {
+ lq_hwrate = le32_to_cpu(table->rs_table[i]);
+ if (rs_rate_from_ucode_rate(lq_hwrate, info->band,
+ &lq_rate)) {
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+ /* Only collect stats if retried rate is in the same RS
+ * table as active/search.
+ */
+ if (rs_rate_column_match(&lq_rate, &curr_tbl->rate))
+ tmp_tbl = curr_tbl;
+ else if (rs_rate_column_match(&lq_rate,
+ &other_tbl->rate))
+ tmp_tbl = other_tbl;
+ else
+ continue;
+
+ rs_collect_tpc_data(mvm, lq_sta, tmp_tbl,
+ tx_resp_rate.index, 1,
+ i < retries ? 0 : legacy_success,
+ reduced_txp);
+ rs_collect_tlc_data(mvm, mvmsta, tid, tmp_tbl,
+ tx_resp_rate.index, 1,
+ i < retries ? 0 : legacy_success);
+ }
+
+ /* Update success/fail counts if not searching for new mode */
+ if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) {
+ lq_sta->total_success += legacy_success;
+ lq_sta->total_failed += retries + (1 - legacy_success);
+ }
+ }
+ /* The last TX rate is cached in lq_sta; it's set in if/else above */
+ lq_sta->last_rate_n_flags = lq_hwrate;
+ IWL_DEBUG_RATE(mvm, "reduced txpower: %d\n", reduced_txp);
+done:
+ /* See if there's a better rate or modulation mode to try. */
+ if (sta->supp_rates[info->band])
+ rs_rate_scale_perform(mvm, sta, lq_sta, tid, ndp);
+}
+
+void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
+ int tid, struct ieee80211_tx_info *info, bool ndp)
+{
+ struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+
+ /* If it's locked we are in middle of init flow
+ * just wait for next tx status to update the lq_sta data
+ */
+ if (!spin_trylock(&mvmsta->lq_sta.rs_drv.pers.lock))
+ return;
+
+ __iwl_mvm_rs_tx_status(mvm, sta, tid, info, ndp);
+ spin_unlock(&mvmsta->lq_sta.rs_drv.pers.lock);
}
#ifdef CONFIG_MAC80211_DEBUGFS
@@ -3286,7 +3346,7 @@
if (num_of_ant(ant) == 1)
lq_cmd->single_stream_ant_msk = ant;
- if (!mvm->trans->cfg->gen2)
+ if (!mvm->trans->trans_cfg->gen2)
lq_cmd->agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
else
lq_cmd->agg_frame_cnt_limit =
@@ -3332,12 +3392,12 @@
/* Building the rate table is non trivial. When we're in MIMO2/VHT/80Mhz/SGI
* column the rate table should look like this:
*
- * rate[0] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI
- * rate[1] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI
- * rate[2] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI
- * rate[3] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI
- * rate[4] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI
- * rate[5] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI
+ * rate[0] 0x400F019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI
+ * rate[1] 0x400F019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI
+ * rate[2] 0x400F018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI
+ * rate[3] 0x400F018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI
+ * rate[4] 0x400F017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI
+ * rate[5] 0x400F017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI
* rate[6] 0x4005007 VHT | ANT: A BW: 80Mhz MCS: 7 NSS: 1 NGI
* rate[7] 0x4009006 VHT | ANT: B BW: 80Mhz MCS: 6 NSS: 1 NGI
* rate[8] 0x4005005 VHT | ANT: A BW: 80Mhz MCS: 5 NSS: 1 NGI
@@ -3547,7 +3607,7 @@
bfersta_ss_params &= ~LQ_SS_BFER_ALLOWED;
bfersta_lq_cmd->ss_params = cpu_to_le32(bfersta_ss_params);
- iwl_mvm_send_lq_cmd(mvm, bfersta_lq_cmd, false);
+ iwl_mvm_send_lq_cmd(mvm, bfersta_lq_cmd);
ss_params |= LQ_SS_BFER_ALLOWED;
IWL_DEBUG_RATE(mvm,
@@ -3590,7 +3650,8 @@
mvmsta = iwl_mvm_sta_from_mac80211(sta);
mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
- if (num_of_ant(initial_rate->ant) == 1)
+ if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) &&
+ num_of_ant(initial_rate->ant) == 1)
lq_cmd->single_stream_ant_msk = initial_rate->ant;
lq_cmd->agg_frame_cnt_limit = mvmsta->max_agg_bufsize;
@@ -3610,7 +3671,7 @@
cpu_to_le16(iwl_mvm_coex_agg_time_limit(mvm, sta));
}
-static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
+static void *rs_alloc(struct ieee80211_hw *hw)
{
return hw->priv;
}
@@ -3630,7 +3691,6 @@
IWL_DEBUG_RATE(mvm, "leave\n");
}
-#ifdef CONFIG_MAC80211_DEBUGFS
int rs_pretty_print_rate(char *buf, int bufsz, const u32 rate)
{
@@ -3643,7 +3703,7 @@
!(rate & RATE_MCS_HE_MSK)) {
int index = iwl_hwrate_to_plcp_idx(rate);
- return scnprintf(buf, bufsz, "Legacy | ANT: %s Rate: %s Mbps\n",
+ return scnprintf(buf, bufsz, "Legacy | ANT: %s Rate: %s Mbps",
rs_pretty_ant(ant),
index == IWL_RATE_INVALID ? "BAD" :
iwl_rate_mcs[index].mbps);
@@ -3686,14 +3746,16 @@
}
return scnprintf(buf, bufsz,
- "%s | ANT: %s BW: %s MCS: %d NSS: %d %s%s%s%s\n",
- type, rs_pretty_ant(ant), bw, mcs, nss,
+ "0x%x: %s | ANT: %s BW: %s MCS: %d NSS: %d %s%s%s%s%s",
+ rate, type, rs_pretty_ant(ant), bw, mcs, nss,
(rate & RATE_MCS_SGI_MSK) ? "SGI " : "NGI ",
(rate & RATE_MCS_STBC_MSK) ? "STBC " : "",
(rate & RATE_MCS_LDPC_MSK) ? "LDPC " : "",
+ (rate & RATE_HE_DUAL_CARRIER_MODE_MSK) ? "DCM " : "",
(rate & RATE_MCS_BF_MSK) ? "BF " : "");
}
+#ifdef CONFIG_MAC80211_DEBUGFS
/**
* Program the device to use fixed rate for frame transmit
* This is for debugging/testing only
@@ -3712,7 +3774,7 @@
if (lq_sta->pers.dbg_fixed_rate) {
rs_fill_lq_cmd(mvm, NULL, lq_sta, NULL);
- iwl_mvm_send_lq_cmd(lq_sta->pers.drv, &lq_sta->lq, false);
+ iwl_mvm_send_lq_cmd(lq_sta->pers.drv, &lq_sta->lq);
}
}
@@ -3833,6 +3895,8 @@
desc += scnprintf(buff + desc, bufsz - desc,
" rate[%d] 0x%X ", i, r);
desc += rs_pretty_print_rate(buff + desc, bufsz - desc, r);
+ if (desc < bufsz - 1)
+ buff[desc++] = '\n';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
@@ -4040,9 +4104,8 @@
#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_lq_sta)
#define MVM_DEBUGFS_ADD_FILE_RS(name, parent, mode) do { \
- if (!debugfs_create_file(#name, mode, parent, lq_sta, \
- &iwl_dbgfs_##name##_ops)) \
- goto err; \
+ debugfs_create_file(#name, mode, parent, lq_sta, \
+ &iwl_dbgfs_##name##_ops); \
} while (0)
MVM_DEBUGFS_READ_WRITE_FILE_OPS(ss_force, 32);
@@ -4070,13 +4133,6 @@
&lq_sta->pers.dbg_fixed_txp_reduction);
MVM_DEBUGFS_ADD_FILE_RS(ss_force, dir, 0600);
- return;
-err:
- IWL_ERR((struct iwl_mvm *)mvm, "Can't create debugfs entity\n");
-}
-
-void rs_remove_sta_debugfs(void *mvm, void *mvm_sta)
-{
}
#endif
@@ -4105,17 +4161,22 @@
.rate_update = rs_drv_rate_update,
#ifdef CONFIG_MAC80211_DEBUGFS
.add_sta_debugfs = rs_drv_add_sta_debugfs,
- .remove_sta_debugfs = rs_remove_sta_debugfs,
#endif
+ .capa = RATE_CTRL_CAPA_VHT_EXT_NSS_BW,
};
void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
enum nl80211_band band, bool update)
{
- if (iwl_mvm_has_tlc_offload(mvm))
+ if (iwl_mvm_has_tlc_offload(mvm)) {
rs_fw_rate_init(mvm, sta, band, update);
- else
- rs_drv_rate_init(mvm, sta, band, update);
+ } else {
+ struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+
+ spin_lock(&mvmsta->lq_sta.rs_drv.pers.lock);
+ rs_drv_rate_init(mvm, sta, band);
+ spin_unlock(&mvmsta->lq_sta.rs_drv.pers.lock);
+ }
}
int iwl_mvm_rate_control_register(void)
@@ -4145,7 +4206,7 @@
lq->flags &= ~LQ_FLAG_USE_RTS_MSK;
}
- return iwl_mvm_send_lq_cmd(mvm, lq, false);
+ return iwl_mvm_send_lq_cmd(mvm, lq);
}
/**
--
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