mirror of
https://github.com/outbackdingo/mt76.git
synced 2026-10-24 13:26:48 +00:00
wifi: mt76: mt7996: add full system reset knobs into debugfs
Add testing points into debugfs to trigger firmware assert and enable full system recovery. Also rename knob "fw_ser" to a clear-cut name "sys_recovery". Co-developed-by: Bo Jiao <[email protected]> Signed-off-by: Bo Jiao <[email protected]> Signed-off-by: Ryder Lee <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Ryder Lee
+134
-15
@@ -48,12 +48,12 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7996_implicit_txbf_get,
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/* test knob of system error recovery */
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static ssize_t
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mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
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size_t count, loff_t *ppos)
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mt7996_sys_recovery_set(struct file *file, const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct mt7996_phy *phy = file->private_data;
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struct mt7996_dev *dev = phy->dev;
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u8 band_idx = phy->mt76->band_idx;
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bool band = phy->mt76->band_idx;
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char buf[16];
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int ret = 0;
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u16 val;
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@@ -73,17 +73,47 @@ mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
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return -EINVAL;
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switch (val) {
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case SER_SET_RECOVER_L1:
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case SER_SET_RECOVER_L2:
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case SER_SET_RECOVER_L3_RX_ABORT:
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case SER_SET_RECOVER_L3_TX_ABORT:
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case SER_SET_RECOVER_L3_TX_DISABLE:
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case SER_SET_RECOVER_L3_BF:
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ret = mt7996_mcu_set_ser(dev, SER_ENABLE, BIT(val), band_idx);
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/*
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* 0: grab firmware current SER state.
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* 1: trigger & enable system error L1 recovery.
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* 2: trigger & enable system error L2 recovery.
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* 3: trigger & enable system error L3 rx abort.
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* 4: trigger & enable system error L3 tx abort
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* 5: trigger & enable system error L3 tx disable.
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* 6: trigger & enable system error L3 bf recovery.
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* 7: trigger & enable system error L4 mdp recovery.
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* 8: trigger & enable system error full recovery.
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* 9: trigger firmware crash.
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*/
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case UNI_CMD_SER_QUERY:
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ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_QUERY, 0, band);
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break;
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case UNI_CMD_SER_SET_RECOVER_L1:
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case UNI_CMD_SER_SET_RECOVER_L2:
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case UNI_CMD_SER_SET_RECOVER_L3_RX_ABORT:
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case UNI_CMD_SER_SET_RECOVER_L3_TX_ABORT:
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case UNI_CMD_SER_SET_RECOVER_L3_TX_DISABLE:
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case UNI_CMD_SER_SET_RECOVER_L3_BF:
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case UNI_CMD_SER_SET_RECOVER_L4_MDP:
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ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_SET, BIT(val), band);
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if (ret)
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return ret;
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ret = mt7996_mcu_set_ser(dev, SER_RECOVER, val, band_idx);
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ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, val, band);
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break;
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/* enable full chip reset */
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case UNI_CMD_SER_SET_RECOVER_FULL:
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mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
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dev->recovery.state |= MT_MCU_CMD_WDT_MASK;
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mt7996_reset(dev);
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break;
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/* WARNING: trigger firmware crash */
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case UNI_CMD_SER_SET_SYSTEM_ASSERT:
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ret = mt7996_mcu_trigger_assert(dev);
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if (ret)
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return ret;
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break;
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default:
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break;
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@@ -92,9 +122,97 @@ mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
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return ret ? ret : count;
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}
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static const struct file_operations mt7996_fw_ser_ops = {
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.write = mt7996_fw_ser_set,
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/* TODO: ser read */
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static ssize_t
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mt7996_sys_recovery_get(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct mt7996_phy *phy = file->private_data;
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struct mt7996_dev *dev = phy->dev;
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char *buff;
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int desc = 0;
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ssize_t ret;
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static const size_t bufsz = 1024;
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buff = kmalloc(bufsz, GFP_KERNEL);
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if (!buff)
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return -ENOMEM;
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/* HELP */
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desc += scnprintf(buff + desc, bufsz - desc,
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"Please echo the correct value ...\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"0: grab firmware transient SER state\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"1: trigger system error L1 recovery\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"2: trigger system error L2 recovery\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"3: trigger system error L3 rx abort\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"4: trigger system error L3 tx abort\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"5: trigger system error L3 tx disable\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"6: trigger system error L3 bf recovery\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"7: trigger system error L4 mdp recovery\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"8: trigger system error full recovery\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"9: trigger firmware crash\n");
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/* SER statistics */
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desc += scnprintf(buff + desc, bufsz - desc,
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"\nlet's dump firmware SER statistics...\n");
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_STATUS = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_SER_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_PLE_ERR = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_PLE_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_PLE_ERR_1 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_PLE1_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_PLE_ERR_AMSDU = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_PLE_AMSDU_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_PSE_ERR = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_PSE_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_PSE_ERR_1 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_PSE1_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR6_B0 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN0_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR6_B1 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN1_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR6_B2 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN2_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR7_B0 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN0_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR7_B1 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN1_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"::E R , SER_LMAC_WISR7_B2 = 0x%08x\n",
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mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN2_STATS));
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desc += scnprintf(buff + desc, bufsz - desc,
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"\nSYS_RESET_COUNT: WM %d, WA %d\n",
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dev->recovery.wm_reset_count,
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dev->recovery.wa_reset_count);
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ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
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kfree(buff);
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return ret;
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}
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static const struct file_operations mt7996_sys_recovery_ops = {
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.write = mt7996_sys_recovery_set,
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.read = mt7996_sys_recovery_get,
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.open = simple_open,
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.llseek = default_llseek,
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};
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@@ -674,6 +792,8 @@ int mt7996_init_debugfs(struct mt7996_phy *phy)
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debugfs_create_file("xmit-queues", 0400, dir, phy,
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&mt7996_xmit_queues_fops);
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debugfs_create_file("tx_stats", 0400, dir, phy, &mt7996_tx_stats_fops);
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debugfs_create_file("sys_recovery", 0600, dir, phy,
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&mt7996_sys_recovery_ops);
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debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm);
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debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa);
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debugfs_create_file("fw_debug_bin", 0600, dir, dev, &fops_fw_debug_bin);
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@@ -684,7 +804,6 @@ int mt7996_init_debugfs(struct mt7996_phy *phy)
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&fops_implicit_txbf);
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debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
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mt7996_twt_stats);
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debugfs_create_file("fw_ser", 0600, dir, phy, &mt7996_fw_ser_ops);
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debugfs_create_file("rf_regval", 0600, dir, dev, &fops_rf_regval);
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if (phy->mt76->cap.has_5ghz) {
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