(Split the big patch into smaller intermediate patches by functionality
for easier review. Refer to the cover letter for more info.)
Signed-off-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
---
.../wireless/mediatek/mt76/mt7996/debugfs.c | 851 ++++++++++++++++++
1 file changed, 851 insertions(+)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
new file mode 100644
index 000000000000..0a122264a858
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
@@ -0,0 +1,851 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2022 MediaTek Inc.
+ */
+
+#include <linux/relay.h>
+#include "mt7996.h"
+#include "eeprom.h"
+#include "mcu.h"
+#include "mac.h"
+
+#define FW_BIN_LOG_MAGIC 0x44d9c99a
+
+/** global debugfs **/
+
+struct hw_queue_map {
+ const char *name;
+ u8 index;
+ u8 pid;
+ u8 qid;
+};
+
+static int
+mt7996_implicit_txbf_set(void *data, u64 val)
+{
+ struct mt7996_dev *dev = data;
+
+ /* The existing connected stations shall reconnect to apply
+ * new implicit txbf configuration.
+ */
+ dev->ibf = !!val;
+
+ return mt7996_mcu_set_txbf(dev, BF_HW_EN_UPDATE);
+}
+
+static int
+mt7996_implicit_txbf_get(void *data, u64 *val)
+{
+ struct mt7996_dev *dev = data;
+
+ *val = dev->ibf;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7996_implicit_txbf_get,
+ mt7996_implicit_txbf_set, "%lld\n");
+
+/* test knob of system error recovery */
+static ssize_t
+mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct mt7996_phy *phy = file->private_data;
+ struct mt7996_dev *dev = phy->dev;
+ u8 band_idx = phy->mt76->band_idx;
+ char buf[16];
+ int ret = 0;
+ u16 val;
+
+ if (count >= sizeof(buf))
+ return -EINVAL;
+
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+
+ if (count && buf[count - 1] == '\n')
+ buf[count - 1] = '\0';
+ else
+ buf[count] = '\0';
+
+ if (kstrtou16(buf, 0, &val))
+ return -EINVAL;
+
+ switch (val) {
+ case SER_SET_RECOVER_L1:
+ case SER_SET_RECOVER_L2:
+ case SER_SET_RECOVER_L3_RX_ABORT:
+ case SER_SET_RECOVER_L3_TX_ABORT:
+ case SER_SET_RECOVER_L3_TX_DISABLE:
+ case SER_SET_RECOVER_L3_BF:
+ ret = mt7996_mcu_set_ser(dev, SER_ENABLE, BIT(val), band_idx);
+ if (ret)
+ return ret;
+
+ ret = mt7996_mcu_set_ser(dev, SER_RECOVER, val, band_idx);
+ break;
+ default:
+ break;
+ }
+
+ return ret ? ret : count;
+}
+
+static const struct file_operations mt7996_fw_ser_ops = {
+ .write = mt7996_fw_ser_set,
+ /* TODO: ser read */
+ .open = simple_open,
+ .llseek = default_llseek,
+};
+
+static int
+mt7996_radar_trigger(void *data, u64 val)
+{
+ struct mt7996_dev *dev = data;
+
+ if (val > MT_RX_SEL2)
+ return -EINVAL;
+
+ return mt7996_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE,
+ val, 0, 0);
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
+ mt7996_radar_trigger, "%lld\n");
+
+static int
+mt7996_rdd_monitor(struct seq_file *s, void *data)
+{
+ struct mt7996_dev *dev = dev_get_drvdata(s->private);
+ struct cfg80211_chan_def *chandef = &dev->rdd2_chandef;
+ const char *bw;
+ int ret = 0;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ if (!cfg80211_chandef_valid(chandef)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!dev->rdd2_phy) {
+ seq_puts(s, "not running\n");
+ goto out;
+ }
+
+ switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_40:
+ bw = "40";
+ break;
+ case NL80211_CHAN_WIDTH_80:
+ bw = "80";
+ break;
+ case NL80211_CHAN_WIDTH_160:
+ bw = "160";
+ break;
+ case NL80211_CHAN_WIDTH_80P80:
+ bw = "80P80";
+ break;
+ default:
+ bw = "20";
+ break;
+ }
+
+ seq_printf(s, "channel %d (%d MHz) width %s MHz center1: %d MHz\n",
+ chandef->chan->hw_value, chandef->chan->center_freq,
+ bw, chandef->center_freq1);
+out:
+ mutex_unlock(&dev->mt76.mutex);
+
+ return ret;
+}
+
+static int
+mt7996_fw_debug_wm_set(void *data, u64 val)
+{
+ struct mt7996_dev *dev = data;
+ enum {
+ DEBUG_TXCMD = 62,
+ DEBUG_CMD_RPT_TX,
+ DEBUG_CMD_RPT_TRIG,
+ DEBUG_SPL,
+ DEBUG_RPT_RX,
+ DEBUG_RPT_RA = 68,
+ } debug;
+ bool tx, rx, en;
+ int ret;
+
+ dev->fw_debug_wm = val ? MCU_FW_LOG_TO_HOST : 0;
+
+ if (dev->fw_debug_bin)
+ val = MCU_FW_LOG_RELAY;
+ else
+ val = dev->fw_debug_wm;
+
+ tx = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(1));
+ rx = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(2));
+ en = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(0));
+
+ ret = mt7996_mcu_fw_log_2_host(dev, MCU_FW_LOG_WM, val);
+ if (ret)
+ return ret;
+
+ for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RA; debug++) {
+ if (debug == 67)
+ continue;
+
+ if (debug == DEBUG_RPT_RX)
+ val = en && rx;
+ else
+ val = en && tx;
+
+ ret = mt7996_mcu_fw_dbg_ctrl(dev, debug, val);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+mt7996_fw_debug_wm_get(void *data, u64 *val)
+{
+ struct mt7996_dev *dev = data;
+
+ *val = dev->fw_debug_wm;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wm, mt7996_fw_debug_wm_get,
+ mt7996_fw_debug_wm_set, "%lld\n");
+
+static int
+mt7996_fw_debug_wa_set(void *data, u64 val)
+{
+ struct mt7996_dev *dev = data;
+ int ret;
+
+ dev->fw_debug_wa = val ? MCU_FW_LOG_TO_HOST : 0;
+
+ ret = mt7996_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, dev->fw_debug_wa);
+ if (ret)
+ return ret;
+
+ return mt7996_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET), MCU_WA_PARAM_PDMA_RX,
+ !!dev->fw_debug_wa, 0);
+}
+
+static int
+mt7996_fw_debug_wa_get(void *data, u64 *val)
+{
+ struct mt7996_dev *dev = data;
+
+ *val = dev->fw_debug_wa;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wa, mt7996_fw_debug_wa_get,
+ mt7996_fw_debug_wa_set, "%lld\n");
+
+static struct dentry *
+create_buf_file_cb(const char *filename, struct dentry *parent, umode_t mode,
+ struct rchan_buf *buf, int *is_global)
+{
+ struct dentry *f;
+
+ f = debugfs_create_file("fwlog_data", mode, parent, buf,
+ &relay_file_operations);
+ if (IS_ERR(f))
+ return NULL;
+
+ *is_global = 1;
+
+ return f;
+}
+
+static int
+remove_buf_file_cb(struct dentry *f)
+{
+ debugfs_remove(f);
+
+ return 0;
+}
+
+static int
+mt7996_fw_debug_bin_set(void *data, u64 val)
+{
+ static struct rchan_callbacks relay_cb = {
+ .create_buf_file = create_buf_file_cb,
+ .remove_buf_file = remove_buf_file_cb,
+ };
+ struct mt7996_dev *dev = data;
+
+ if (!dev->relay_fwlog)
+ dev->relay_fwlog = relay_open("fwlog_data", dev->debugfs_dir,
+ 1500, 512, &relay_cb, NULL);
+ if (!dev->relay_fwlog)
+ return -ENOMEM;
+
+ dev->fw_debug_bin = val;
+
+ relay_reset(dev->relay_fwlog);
+
+ return mt7996_fw_debug_wm_set(dev, dev->fw_debug_wm);
+}
+
+static int
+mt7996_fw_debug_bin_get(void *data, u64 *val)
+{
+ struct mt7996_dev *dev = data;
+
+ *val = dev->fw_debug_bin;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_bin, mt7996_fw_debug_bin_get,
+ mt7996_fw_debug_bin_set, "%lld\n");
+
+static int
+mt7996_fw_util_wa_show(struct seq_file *file, void *data)
+{
+ struct mt7996_dev *dev = file->private;
+
+ if (dev->fw_debug_wa)
+ return mt7996_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(QUERY),
+ MCU_WA_PARAM_CPU_UTIL, 0, 0);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_fw_util_wa);
+
+static void
+mt7996_ampdu_stat_read_phy(struct mt7996_phy *phy, struct seq_file *file)
+{
+ struct mt7996_dev *dev = phy->dev;
+ int bound[15], range[8], i;
+ u8 band_idx = phy->mt76->band_idx;
+
+ /* Tx ampdu stat */
+ for (i = 0; i < ARRAY_SIZE(range); i++)
+ range[i] = mt76_rr(dev, MT_MIB_ARNG(band_idx, i));
+
+ for (i = 0; i < ARRAY_SIZE(bound); i++)
+ bound[i] = MT_MIB_ARNCR_RANGE(range[i / 2], i % 2) + 1;
+
+ seq_printf(file, "\nPhy %s, Phy band %d\n",
+ wiphy_name(phy->mt76->hw->wiphy), band_idx);
+
+ seq_printf(file, "Length: %8d | ", bound[0]);
+ for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
+ seq_printf(file, "%3d -%3d | ",
+ bound[i] + 1, bound[i + 1]);
+
+ seq_puts(file, "\nCount: ");
+ for (i = 0; i < ARRAY_SIZE(bound); i++)
+ seq_printf(file, "%8d | ", phy->mt76->aggr_stats[i]);
+ seq_puts(file, "\n");
+
+ seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
+}
+
+static void
+mt7996_txbf_stat_read_phy(struct mt7996_phy *phy, struct seq_file *s)
+{
+ static const char * const bw[] = {
+ "BW20", "BW40", "BW80", "BW160"
+ };
+ struct mib_stats *mib = &phy->mib;
+
+ /* Tx Beamformer monitor */
+ seq_puts(s, "\nTx Beamformer applied PPDU counts: ");
+
+ seq_printf(s, "iBF: %d, eBF: %d\n",
+ mib->tx_bf_ibf_ppdu_cnt,
+ mib->tx_bf_ebf_ppdu_cnt);
+
+ /* Tx Beamformer Rx feedback monitor */
+ seq_puts(s, "Tx Beamformer Rx feedback statistics: ");
+
+ seq_printf(s, "All: %d, HE: %d, VHT: %d, HT: %d, ",
+ mib->tx_bf_rx_fb_all_cnt,
+ mib->tx_bf_rx_fb_he_cnt,
+ mib->tx_bf_rx_fb_vht_cnt,
+ mib->tx_bf_rx_fb_ht_cnt);
+
+ seq_printf(s, "%s, NC: %d, NR: %d\n",
+ bw[mib->tx_bf_rx_fb_bw],
+ mib->tx_bf_rx_fb_nc_cnt,
+ mib->tx_bf_rx_fb_nr_cnt);
+
+ /* Tx Beamformee Rx NDPA & Tx feedback report */
+ seq_printf(s, "Tx Beamformee successful feedback frames: %d\n",
+ mib->tx_bf_fb_cpl_cnt);
+ seq_printf(s, "Tx Beamformee feedback triggered counts: %d\n",
+ mib->tx_bf_fb_trig_cnt);
+
+ /* Tx SU & MU counters */
+ seq_printf(s, "Tx multi-user Beamforming counts: %d\n",
+ mib->tx_mu_bf_cnt);
+ seq_printf(s, "Tx multi-user MPDU counts: %d\n", mib->tx_mu_mpdu_cnt);
+ seq_printf(s, "Tx multi-user successful MPDU counts: %d\n",
+ mib->tx_mu_acked_mpdu_cnt);
+ seq_printf(s, "Tx single-user successful MPDU counts: %d\n",
+ mib->tx_su_acked_mpdu_cnt);
+
+ seq_puts(s, "\n");
+}
+
+static int
+mt7996_tx_stats_show(struct seq_file *file, void *data)
+{
+ struct mt7996_phy *phy = file->private;
+ struct mt7996_dev *dev = phy->dev;
+ struct mib_stats *mib = &phy->mib;
+ int i;
+ u32 attempts, success, per;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ mt7996_mac_update_stats(phy);
+ mt7996_ampdu_stat_read_phy(phy, file);
+
+ attempts = mib->tx_mpdu_attempts_cnt;
+ success = mib->tx_mpdu_success_cnt;
+ per = attempts ? 100 - success * 100 / attempts : 100;
+ seq_printf(file, "Tx attempts: %8u (MPDUs)\n", attempts);
+ seq_printf(file, "Tx success: %8u (MPDUs)\n", success);
+ seq_printf(file, "Tx PER: %u%%\n", per);
+
+ mt7996_txbf_stat_read_phy(phy, file);
+
+ /* Tx amsdu info */
+ seq_puts(file, "Tx MSDU statistics:\n");
+ for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) {
+ seq_printf(file, "AMSDU pack count of %d MSDU in TXD: %8d ",
+ i + 1, mib->tx_amsdu[i]);
+ if (mib->tx_amsdu_cnt)
+ seq_printf(file, "(%3d%%)\n",
+ mib->tx_amsdu[i] * 100 / mib->tx_amsdu_cnt);
+ else
+ seq_puts(file, "\n");
+ }
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_tx_stats);
+
+static void
+mt7996_hw_queue_read(struct seq_file *s, u32 size,
+ const struct hw_queue_map *map)
+{
+ struct mt7996_phy *phy = s->private;
+ struct mt7996_dev *dev = phy->dev;
+ u32 i, val;
+
+ val = mt76_rr(dev, MT_FL_Q_EMPTY);
+ for (i = 0; i < size; i++) {
+ u32 ctrl, head, tail, queued;
+
+ if (val & BIT(map[i].index))
+ continue;
+
+ ctrl = BIT(31) | (map[i].pid << 10) | (map[i].qid << 24);
+ mt76_wr(dev, MT_FL_Q0_CTRL, ctrl);
+
+ head = mt76_get_field(dev, MT_FL_Q2_CTRL,
+ GENMASK(11, 0));
+ tail = mt76_get_field(dev, MT_FL_Q2_CTRL,
+ GENMASK(27, 16));
+ queued = mt76_get_field(dev, MT_FL_Q3_CTRL,
+ GENMASK(11, 0));
+
+ seq_printf(s, "\t%s: ", map[i].name);
+ seq_printf(s, "queued:0x%03x head:0x%03x tail:0x%03x\n",
+ queued, head, tail);
+ }
+}
+
+static void
+mt7996_sta_hw_queue_read(void *data, struct ieee80211_sta *sta)
+{
+ struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
+ struct mt7996_dev *dev = msta->vif->phy->dev;
+ struct seq_file *s = data;
+ u8 ac;
+
+ for (ac = 0; ac < 4; ac++) {
+ u32 qlen, ctrl, val;
+ u32 idx = msta->wcid.idx >> 5;
+ u8 offs = msta->wcid.idx & GENMASK(4, 0);
+
+ ctrl = BIT(31) | BIT(11) | (ac << 24);
+ val = mt76_rr(dev, MT_PLE_AC_QEMPTY(ac, idx));
+
+ if (val & BIT(offs))
+ continue;
+
+ mt76_wr(dev, MT_FL_Q0_CTRL, ctrl | msta->wcid.idx);
+ qlen = mt76_get_field(dev, MT_FL_Q3_CTRL,
+ GENMASK(11, 0));
+ seq_printf(s, "\tSTA %pM wcid %d: AC%d%d queued:%d\n",
+ sta->addr, msta->wcid.idx,
+ msta->vif->mt76.wmm_idx, ac, qlen);
+ }
+}
+
+static int
+mt7996_hw_queues_show(struct seq_file *file, void *data)
+{
+ struct mt7996_phy *phy = file->private;
+ struct mt7996_dev *dev = phy->dev;
+ static const struct hw_queue_map ple_queue_map[] = {
+ { "CPU_Q0", 0, 1, MT_CTX0 },
+ { "CPU_Q1", 1, 1, MT_CTX0 + 1 },
+ { "CPU_Q2", 2, 1, MT_CTX0 + 2 },
+ { "CPU_Q3", 3, 1, MT_CTX0 + 3 },
+ { "ALTX_Q0", 8, 2, MT_LMAC_ALTX0 },
+ { "BMC_Q0", 9, 2, MT_LMAC_BMC0 },
+ { "BCN_Q0", 10, 2, MT_LMAC_BCN0 },
+ { "PSMP_Q0", 11, 2, MT_LMAC_PSMP0 },
+ { "ALTX_Q1", 12, 2, MT_LMAC_ALTX0 + 4 },
+ { "BMC_Q1", 13, 2, MT_LMAC_BMC0 + 4 },
+ { "BCN_Q1", 14, 2, MT_LMAC_BCN0 + 4 },
+ { "PSMP_Q1", 15, 2, MT_LMAC_PSMP0 + 4 },
+ };
+ static const struct hw_queue_map pse_queue_map[] = {
+ { "CPU Q0", 0, 1, MT_CTX0 },
+ { "CPU Q1", 1, 1, MT_CTX0 + 1 },
+ { "CPU Q2", 2, 1, MT_CTX0 + 2 },
+ { "CPU Q3", 3, 1, MT_CTX0 + 3 },
+ { "HIF_Q0", 8, 0, MT_HIF0 },
+ { "HIF_Q1", 9, 0, MT_HIF0 + 1 },
+ { "HIF_Q2", 10, 0, MT_HIF0 + 2 },
+ { "HIF_Q3", 11, 0, MT_HIF0 + 3 },
+ { "HIF_Q4", 12, 0, MT_HIF0 + 4 },
+ { "HIF_Q5", 13, 0, MT_HIF0 + 5 },
+ { "LMAC_Q", 16, 2, 0 },
+ { "MDP_TXQ", 17, 2, 1 },
+ { "MDP_RXQ", 18, 2, 2 },
+ { "SEC_TXQ", 19, 2, 3 },
+ { "SEC_RXQ", 20, 2, 4 },
+ };
+ u32 val, head, tail;
+
+ /* ple queue */
+ val = mt76_rr(dev, MT_PLE_FREEPG_CNT);
+ head = mt76_get_field(dev, MT_PLE_FREEPG_HEAD_TAIL, GENMASK(11, 0));
+ tail = mt76_get_field(dev, MT_PLE_FREEPG_HEAD_TAIL, GENMASK(27, 16));
+ seq_puts(file, "PLE page info:\n");
+ seq_printf(file,
+ "\tTotal free page: 0x%08x head: 0x%03x tail: 0x%03x\n",
+ val, head, tail);
+
+ val = mt76_rr(dev, MT_PLE_PG_HIF_GROUP);
+ head = mt76_get_field(dev, MT_PLE_HIF_PG_INFO, GENMASK(11, 0));
+ tail = mt76_get_field(dev, MT_PLE_HIF_PG_INFO, GENMASK(27, 16));
+ seq_printf(file, "\tHIF free page: 0x%03x res: 0x%03x used: 0x%03x\n",
+ val, head, tail);
+
+ seq_puts(file, "PLE non-empty queue info:\n");
+ mt7996_hw_queue_read(file, ARRAY_SIZE(ple_queue_map),
+ &ple_queue_map[0]);
+
+ /* iterate per-sta ple queue */
+ ieee80211_iterate_stations_atomic(phy->mt76->hw,
+ mt7996_sta_hw_queue_read, file);
+ /* pse queue */
+ seq_puts(file, "PSE non-empty queue info:\n");
+ mt7996_hw_queue_read(file, ARRAY_SIZE(pse_queue_map),
+ &pse_queue_map[0]);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_hw_queues);
+
+static int
+mt7996_xmit_queues_show(struct seq_file *file, void *data)
+{
+ struct mt7996_phy *phy = file->private;
+ struct mt7996_dev *dev = phy->dev;
+ struct {
+ struct mt76_queue *q;
+ char *queue;
+ } queue_map[] = {
+ { phy->mt76->q_tx[MT_TXQ_BE], " MAIN" },
+ { dev->mt76.q_mcu[MT_MCUQ_WM], " MCUWM" },
+ { dev->mt76.q_mcu[MT_MCUQ_WA], " MCUWA" },
+ { dev->mt76.q_mcu[MT_MCUQ_FWDL], "MCUFWDL" },
+ };
+ int i;
+
+ seq_puts(file, " queue | hw-queued | head | tail |\n");
+ for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
+ struct mt76_queue *q = queue_map[i].q;
+
+ if (!q)
+ continue;
+
+ seq_printf(file, " %s | %9d | %9d | %9d |\n",
+ queue_map[i].queue, q->queued, q->head,
+ q->tail);
+ }
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_xmit_queues);
+
+static int
+mt7996_twt_stats(struct seq_file *s, void *data)
+{
+ struct mt7996_dev *dev = dev_get_drvdata(s->private);
+ struct mt7996_twt_flow *iter;
+
+ rcu_read_lock();
+
+ seq_puts(s, " wcid | id | flags | exp | mantissa");
+ seq_puts(s, " | duration | tsf |\n");
+ list_for_each_entry_rcu(iter, &dev->twt_list, list)
+ seq_printf(s,
+ "%9d | %8d | %5c%c%c%c | %8d | %8d | %8d | %14lld |\n",
+ iter->wcid, iter->id,
+ iter->sched ? 's' : 'u',
+ iter->protection ? 'p' : '-',
+ iter->trigger ? 't' : '-',
+ iter->flowtype ? '-' : 'a',
+ iter->exp, iter->mantissa,
+ iter->duration, iter->tsf);
+
+ rcu_read_unlock();
+
+ return 0;
+}
+
+/* The index of RF registers use the generic regidx, combined with two parts:
+ * WF selection [31:24] and offset [23:0].
+ */
+static int
+mt7996_rf_regval_get(void *data, u64 *val)
+{
+ struct mt7996_dev *dev = data;
+ u32 regval;
+ int ret;
+
+ ret = mt7996_mcu_rf_regval(dev, dev->mt76.debugfs_reg, ®val, false);
+ if (ret)
+ return ret;
+
+ *val = le32_to_cpu(regval);
+
+ return 0;
+}
+
+static int
+mt7996_rf_regval_set(void *data, u64 val)
+{
+ struct mt7996_dev *dev = data;
+
+ return mt7996_mcu_rf_regval(dev, dev->mt76.debugfs_reg, (u32 *)&val, true);
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_rf_regval, mt7996_rf_regval_get,
+ mt7996_rf_regval_set, "0x%08llx\n");
+
+int mt7996_init_debugfs(struct mt7996_phy *phy)
+{
+ struct mt7996_dev *dev = phy->dev;
+ struct dentry *dir;
+
+ dir = mt76_register_debugfs_fops(phy->mt76, NULL);
+ if (!dir)
+ return -ENOMEM;
+ debugfs_create_file("hw-queues", 0400, dir, phy,
+ &mt7996_hw_queues_fops);
+ debugfs_create_file("xmit-queues", 0400, dir, phy,
+ &mt7996_xmit_queues_fops);
+ debugfs_create_file("tx_stats", 0400, dir, phy, &mt7996_tx_stats_fops);
+ debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm);
+ debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa);
+ debugfs_create_file("fw_debug_bin", 0600, dir, dev, &fops_fw_debug_bin);
+ /* TODO: wm fw cpu utilization */
+ debugfs_create_file("fw_util_wa", 0400, dir, dev,
+ &mt7996_fw_util_wa_fops);
+ debugfs_create_file("implicit_txbf", 0600, dir, dev,
+ &fops_implicit_txbf);
+ debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
+ mt7996_twt_stats);
+ debugfs_create_file("fw_ser", 0600, dir, phy, &mt7996_fw_ser_ops);
+ debugfs_create_file("rf_regval", 0600, dir, dev, &fops_rf_regval);
+
+ if (phy->mt76->cap.has_5ghz) {
+ debugfs_create_u32("dfs_hw_pattern", 0400, dir,
+ &dev->hw_pattern);
+ debugfs_create_file("radar_trigger", 0200, dir, dev,
+ &fops_radar_trigger);
+ debugfs_create_devm_seqfile(dev->mt76.dev, "rdd_monitor", dir,
+ mt7996_rdd_monitor);
+ }
+
+ if (phy == &dev->phy)
+ dev->debugfs_dir = dir;
+
+ return 0;
+}
+
+static void
+mt7996_debugfs_write_fwlog(struct mt7996_dev *dev, const void *hdr, int hdrlen,
+ const void *data, int len)
+{
+ static DEFINE_SPINLOCK(lock);
+ unsigned long flags;
+ void *dest;
+
+ spin_lock_irqsave(&lock, flags);
+ dest = relay_reserve(dev->relay_fwlog, hdrlen + len + 4);
+ if (dest) {
+ *(u32 *)dest = hdrlen + len;
+ dest += 4;
+
+ if (hdrlen) {
+ memcpy(dest, hdr, hdrlen);
+ dest += hdrlen;
+ }
+
+ memcpy(dest, data, len);
+ relay_flush(dev->relay_fwlog);
+ }
+ spin_unlock_irqrestore(&lock, flags);
+}
+
+void mt7996_debugfs_rx_fw_monitor(struct mt7996_dev *dev, const void *data, int len)
+{
+ struct {
+ __le32 magic;
+ u8 version;
+ u8 _rsv;
+ __le16 serial_id;
+ __le32 timestamp;
+ __le16 msg_type;
+ __le16 len;
+ } hdr = {
+ .version = 0x1,
+ .magic = cpu_to_le32(FW_BIN_LOG_MAGIC),
+ .msg_type = cpu_to_le16(PKT_TYPE_RX_FW_MONITOR),
+ };
+
+ if (!dev->relay_fwlog)
+ return;
+
+ hdr.serial_id = cpu_to_le16(dev->fw_debug_seq++);
+ hdr.timestamp = cpu_to_le32(mt76_rr(dev, MT_LPON_FRCR(0)));
+ hdr.len = *(__le16 *)data;
+ mt7996_debugfs_write_fwlog(dev, &hdr, sizeof(hdr), data, len);
+}
+
+bool mt7996_debugfs_rx_log(struct mt7996_dev *dev, const void *data, int len)
+{
+ if (get_unaligned_le32(data) != FW_BIN_LOG_MAGIC)
+ return false;
+
+ if (dev->relay_fwlog)
+ mt7996_debugfs_write_fwlog(dev, NULL, 0, data, len);
+
+ return true;
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+/** per-station debugfs **/
+
+static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+#define SHORT_PREAMBLE 0
+#define LONG_PREAMBLE 1
+ struct ieee80211_sta *sta = file->private_data;
+ struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
+ struct mt7996_dev *dev = msta->vif->phy->dev;
+ struct ra_rate phy = {};
+ char buf[100];
+ int ret;
+ u16 gi, ltf;
+
+ if (count >= sizeof(buf))
+ return -EINVAL;
+
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+
+ if (count && buf[count - 1] == '\n')
+ buf[count - 1] = '\0';
+ else
+ buf[count] = '\0';
+
+ /* mode - cck: 0, ofdm: 1, ht: 2, gf: 3, vht: 4, he_su: 8, he_er: 9
+ * bw - bw20: 0, bw40: 1, bw80: 2, bw160: 3
+ * nss - vht: 1~4, he: 1~4, others: ignore
+ * mcs - cck: 0~4, ofdm: 0~7, ht: 0~32, vht: 0~9, he_su: 0~11, he_er: 0~2
+ * gi - (ht/vht) lgi: 0, sgi: 1; (he) 0.8us: 0, 1.6us: 1, 3.2us: 2
+ * preamble - short: 1, long: 0
+ * ldpc - off: 0, on: 1
+ * stbc - off: 0, on: 1
+ * ltf - 1xltf: 0, 2xltf: 1, 4xltf: 2
+ */
+ if (sscanf(buf, "%hhu %hhu %hhu %hhu %hu %hhu %hhu %hhu %hhu %hu",
+ &phy.mode, &phy.bw, &phy.mcs, &phy.nss, &gi,
+ &phy.preamble, &phy.stbc, &phy.ldpc, &phy.spe, <f) != 10) {
+ dev_warn(dev->mt76.dev,
+ "format: Mode BW MCS NSS GI Preamble STBC LDPC SPE ltf\n");
+ goto out;
+ }
+
+ phy.wlan_idx = cpu_to_le16(msta->wcid.idx);
+ phy.gi = cpu_to_le16(gi);
+ phy.ltf = cpu_to_le16(ltf);
+ phy.ldpc = phy.ldpc ? 7 : 0;
+ phy.preamble = phy.preamble ? SHORT_PREAMBLE : LONG_PREAMBLE;
+
+ ret = mt7996_mcu_set_fixed_rate_ctrl(dev, &phy, 0);
+ if (ret)
+ return -EFAULT;
+
+out:
+ return count;
+}
+
+static const struct file_operations fops_fixed_rate = {
+ .write = mt7996_sta_fixed_rate_set,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+static int
+mt7996_queues_show(struct seq_file *s, void *data)
+{
+ struct ieee80211_sta *sta = s->private;
+
+ mt7996_sta_hw_queue_read(s, sta);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_queues);
+
+void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct dentry *dir)
+{
+ debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
+ debugfs_create_file("hw-queues", 0400, dir, sta, &mt7996_queues_fops);
+}
+
+#endif
--
2.25.1
