NTB: Clean up QP stats info

Make QP stats info more readable for debugging purposes.  Also add an
entry to indicate whether DMA is being used.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 29553fb..777436c 100644 (file)
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -452,7 +452,7 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
 
        out_offset = 0;
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "NTB QP stats\n");
+                              "\nNTB QP stats:\n\n");
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "rx_bytes - \t%llu\n", qp->rx_bytes);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
@@ -470,11 +470,11 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "rx_err_ver - \t%llu\n", qp->rx_err_ver);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "rx_buff - \t%p\n", qp->rx_buff);
+                              "rx_buff - \t0x%p\n", qp->rx_buff);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "rx_index - \t%u\n", qp->rx_index);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "rx_max_entry - \t%u\n", qp->rx_max_entry);
+                              "rx_max_entry - \t%u\n\n", qp->rx_max_entry);
 
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "tx_bytes - \t%llu\n", qp->tx_bytes);
@@ -489,21 +489,28 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "tx_err_no_buf - %llu\n", qp->tx_err_no_buf);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "tx_mw - \t%p\n", qp->tx_mw);
+                              "tx_mw - \t0x%p\n", qp->tx_mw);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "tx_index - \t%u\n", qp->tx_index);
+                              "tx_index (H) - \t%u\n", qp->tx_index);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "tx_max_entry - \t%u\n", qp->tx_max_entry);
-       out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "qp->remote_rx_info->entry - \t%u\n",
+                              "RRI (T) - \t%u\n",
                               qp->remote_rx_info->entry);
+       out_offset += snprintf(buf + out_offset, out_count - out_offset,
+                              "tx_max_entry - \t%u\n", qp->tx_max_entry);
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
                               "free tx - \t%u\n",
                               ntb_transport_tx_free_entry(qp));
 
        out_offset += snprintf(buf + out_offset, out_count - out_offset,
-                              "\nQP Link %s\n",
+                              "\n");
+       out_offset += snprintf(buf + out_offset, out_count - out_offset,
+                              "Using DMA - \t%s\n", use_dma ? "Yes" : "No");
+       out_offset += snprintf(buf + out_offset, out_count - out_offset,
+                              "QP Link - \t%s\n",
                               qp->link_is_up ? "Up" : "Down");
+       out_offset += snprintf(buf + out_offset, out_count - out_offset,
+                              "\n");
+
        if (out_offset > out_count)
                out_offset = out_count;