From 41f5e0475c7c04b17b207736146187636b04eb4c Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 6 Sep 2011 09:31:20 -0700 Subject: [PATCH] iwlagn: move traffic_log back to upper layer The traffic log debugfs handlers were mistakenly moved to the transport layer because they print the pointers of the Tx / Rx queues. The pointers of the queues can be fetched by another debugfs handler. So bring the traffic log back to the upper layer and remove the part that reads the Tx / Rx queues' pointers. Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 85 ++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-trans.c | 107 --------------------- 2 files changed, 85 insertions(+), 107 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index e320cc10167..d0c63cfee15 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -804,6 +804,89 @@ DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override); DEBUGFS_READ_FILE_OPS(current_sleep_command); +static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = file->private_data; + int pos = 0, ofs = 0; + int cnt = 0, entry; + + char *buf; + int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) + + (hw_params(priv).max_txq_num * 32 * 8) + 400; + const u8 *ptr; + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IWL_ERR(priv, "Can not allocate buffer\n"); + return -ENOMEM; + } + if (priv->tx_traffic && + (iwl_get_debug_level(priv->shrd) & IWL_DL_TX)) { + ptr = priv->tx_traffic; + pos += scnprintf(buf + pos, bufsz - pos, + "Tx Traffic idx: %u\n", priv->tx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += scnprintf(buf + pos, bufsz - pos, + "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } + + if (priv->rx_traffic && + (iwl_get_debug_level(priv->shrd) & IWL_DL_RX)) { + ptr = priv->rx_traffic; + pos += scnprintf(buf + pos, bufsz - pos, + "Rx Traffic idx: %u\n", priv->rx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += scnprintf(buf + pos, bufsz - pos, + "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = file->private_data; + char buf[8]; + int buf_size; + int traffic_log; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &traffic_log) != 1) + return -EFAULT; + if (traffic_log == 0) + iwl_reset_traffic_log(priv); + + return count; +} + static const char *fmt_value = " %-30s %10u\n"; static const char *fmt_hex = " %-30s 0x%02X\n"; static const char *fmt_table = " %-30s %10u %10u %10u %10u\n"; @@ -2340,6 +2423,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file, DEBUGFS_READ_FILE_OPS(rx_statistics); DEBUGFS_READ_FILE_OPS(tx_statistics); +DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); DEBUGFS_READ_FILE_OPS(ucode_rx_stats); DEBUGFS_READ_FILE_OPS(ucode_tx_stats); DEBUGFS_READ_FILE_OPS(ucode_general_stats); @@ -2400,6 +2484,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR); DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR); DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR); diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index 3948d317bc1..28fbaa2517a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -1561,111 +1561,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .llseek = generic_file_llseek, \ }; -static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_trans *trans = file->private_data; - struct iwl_priv *priv = priv(trans); - int pos = 0, ofs = 0; - int cnt = 0, entry; - struct iwl_trans_pcie *trans_pcie = - IWL_TRANS_GET_PCIE_TRANS(trans); - struct iwl_tx_queue *txq; - struct iwl_queue *q; - struct iwl_rx_queue *rxq = &trans_pcie->rxq; - char *buf; - int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) + - (hw_params(trans).max_txq_num * 32 * 8) + 400; - const u8 *ptr; - ssize_t ret; - - if (!trans_pcie->txq) { - IWL_ERR(trans, "txq not ready\n"); - return -EAGAIN; - } - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(trans, "Can not allocate buffer\n"); - return -ENOMEM; - } - pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n"); - for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { - txq = &trans_pcie->txq[cnt]; - q = &txq->q; - pos += scnprintf(buf + pos, bufsz - pos, - "q[%d]: read_ptr: %u, write_ptr: %u\n", - cnt, q->read_ptr, q->write_ptr); - } - if (priv->tx_traffic && - (iwl_get_debug_level(trans->shrd) & IWL_DL_TX)) { - ptr = priv->tx_traffic; - pos += scnprintf(buf + pos, bufsz - pos, - "Tx Traffic idx: %u\n", priv->tx_traffic_idx); - for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { - for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; - entry++, ofs += 16) { - pos += scnprintf(buf + pos, bufsz - pos, - "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16, 16, 2, - buf + pos, bufsz - pos, 0); - pos += strlen(buf + pos); - if (bufsz - pos > 0) - buf[pos++] = '\n'; - } - } - } - - pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n"); - pos += scnprintf(buf + pos, bufsz - pos, - "read: %u, write: %u\n", - rxq->read, rxq->write); - - if (priv->rx_traffic && - (iwl_get_debug_level(trans->shrd) & IWL_DL_RX)) { - ptr = priv->rx_traffic; - pos += scnprintf(buf + pos, bufsz - pos, - "Rx Traffic idx: %u\n", priv->rx_traffic_idx); - for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { - for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; - entry++, ofs += 16) { - pos += scnprintf(buf + pos, bufsz - pos, - "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16, 16, 2, - buf + pos, bufsz - pos, 0); - pos += strlen(buf + pos); - if (bufsz - pos > 0) - buf[pos++] = '\n'; - } - } - } - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_trans *trans = file->private_data; - char buf[8]; - int buf_size; - int traffic_log; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &traffic_log) != 1) - return -EFAULT; - if (traffic_log == 0) - iwl_reset_traffic_log(priv(trans)); - - return count; -} - static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -2031,7 +1926,6 @@ static ssize_t iwl_dbgfs_fh_reg_read(struct file *file, return ret; } -DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); DEBUGFS_READ_WRITE_FILE_OPS(log_event); DEBUGFS_READ_WRITE_FILE_OPS(interrupt); DEBUGFS_READ_FILE_OPS(fh_reg); @@ -2046,7 +1940,6 @@ DEBUGFS_WRITE_FILE_OPS(csr); static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, struct dentry *dir) { - DEBUGFS_ADD_FILE(traffic_log, dir, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(rx_queue, dir, S_IRUSR); DEBUGFS_ADD_FILE(tx_queue, dir, S_IRUSR); DEBUGFS_ADD_FILE(log_event, dir, S_IWUSR | S_IRUSR); -- 2.20.1