iwlagn: move the NIC error flow to the transport layer

[mv-sheeva.git] / drivers / net / wireless / iwlwifi / iwl-trans.c

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c
index 687a09226e6d90c7bf2578f709793f0d3242c3f7..5926cac711b389c60a7b01e39cb5a3e6411a5f1d 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-trans.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.c
@@ -1458,7 +1458,46 @@ static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
        return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+static ssize_t iwl_dbgfs_log_event_read(struct file *file,
+                                        char __user *user_buf,
+                                        size_t count, loff_t *ppos)
+{
+       struct iwl_trans *trans = file->private_data;
+       char *buf;
+       int pos = 0;
+       ssize_t ret = -ENOMEM;
+
+       ret = pos = iwl_dump_nic_event_log(priv(trans), true, &buf, true);
+       if (buf) {
+               ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+               kfree(buf);
+       }
+       return ret;
+}
+
+static ssize_t iwl_dbgfs_log_event_write(struct file *file,
+                                       const char __user *user_buf,
+                                       size_t count, loff_t *ppos)
+{
+       struct iwl_trans *trans = file->private_data;
+       u32 event_log_flag;
+       char buf[8];
+       int buf_size;
+
+       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", &event_log_flag) != 1)
+               return -EFAULT;
+       if (event_log_flag == 1)
+               iwl_dump_nic_event_log(priv(trans), true, NULL, false);
+
+       return count;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
+DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(rx_queue);
 DEBUGFS_READ_FILE_OPS(tx_queue);
 
@@ -1472,6 +1511,7 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
        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);
        return 0;
 }
 #else