diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debug.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debugfs.c | 69 |
2 files changed, 71 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 4ac06ad69ed..cad5e27fe8b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -98,6 +98,8 @@ struct iwl_debugfs { struct dentry *file_rx_statistics; struct dentry *file_tx_statistics; struct dentry *file_traffic_log; + struct dentry *file_rx_queue; + struct dentry *file_tx_queue; } dbgfs_debug_files; u32 sram_offset; u32 sram_len; diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index a0e5063cd8c..d4109cbb4f3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -887,9 +887,74 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, return count; } +static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + + struct iwl_priv *priv = (struct iwl_priv *)file->private_data; + struct iwl_tx_queue *txq; + struct iwl_queue *q; + char *buf; + int pos = 0; + int cnt; + int ret; + const size_t bufsz = sizeof(char) * 60 * IWL_MAX_NUM_QUEUES; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { + txq = &priv->txq[cnt]; + q = &txq->q; + pos += scnprintf(buf + pos, bufsz - pos, + "hwq %.2d: read=%u write=%u stop=%d" + " swq_id=%#.2x (ac %d/hwq %d)\n", + cnt, q->read_ptr, q->write_ptr, + !!test_bit(cnt, priv->queue_stopped), + txq->swq_id, + txq->swq_id & 0x80 ? txq->swq_id & 3 : + txq->swq_id, + txq->swq_id & 0x80 ? (txq->swq_id >> 2) & + 0x1f : txq->swq_id); + if (cnt >= 4) + continue; + /* for the ACs, display the stop count too */ + pos += scnprintf(buf + pos, bufsz - pos, + " stop-count: %d\n", + atomic_read(&priv->queue_stop_count[cnt])); + } + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_rx_queue_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + + struct iwl_priv *priv = (struct iwl_priv *)file->private_data; + struct iwl_rx_queue *rxq = &priv->rxq; + char buf[256]; + int pos = 0; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", + rxq->read); + pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", + rxq->write); + pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n", + rxq->free_count); + pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n", + le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF); + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics); DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics); DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); +DEBUGFS_READ_FILE_OPS(rx_queue); +DEBUGFS_READ_FILE_OPS(tx_queue); /* * Create the debugfs files and directories @@ -934,6 +999,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(rx_statistics, debug); DEBUGFS_ADD_FILE(tx_statistics, debug); DEBUGFS_ADD_FILE(traffic_log, debug); + DEBUGFS_ADD_FILE(rx_queue, debug); + DEBUGFS_ADD_FILE(tx_queue, debug); DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); DEBUGFS_ADD_BOOL(disable_chain_noise, rf, &priv->disable_chain_noise_cal); @@ -976,6 +1043,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue); DEBUGFS_REMOVE(priv->dbgfs->dir_debug); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise); |