UHCI: fix bandwidth allocation

[firefly-linux-kernel-4.4.55.git] / drivers / usb / host / uhci-debug.c

diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 3fbb5ba802494576b4adbc6487fac5a3815eca8b..5d6c06bc4524f10c1356583aedfad58396ecb66c 100644 (file)
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -168,9 +168,13 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
                        space, "", qh, qtype,
                        le32_to_cpu(qh->link), le32_to_cpu(element));
        if (qh->type == USB_ENDPOINT_XFER_ISOC)
-               out += sprintf(out, "%*s    period %d frame %x desc [%p]\n",
-                               space, "", qh->period, qh->iso_frame,
-                               qh->iso_packet_desc);
+               out += sprintf(out, "%*s    period %d phase %d load %d us, "
+                               "frame %x desc [%p]\n",
+                               space, "", qh->period, qh->phase, qh->load,
+                               qh->iso_frame, qh->iso_packet_desc);
+       else if (qh->type == USB_ENDPOINT_XFER_INT)
+               out += sprintf(out, "%*s    period %d phase %d load %d us\n",
+                               space, "", qh->period, qh->phase, qh->load);
 
        if (element & UHCI_PTR_QH)
                out += sprintf(out, "%*s  Element points to QH (bug?)\n", space, "");
@@ -352,6 +356,17 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len)
        out += uhci_show_root_hub_state(uhci, out, len - (out - buf));
        out += sprintf(out, "HC status\n");
        out += uhci_show_status(uhci, out, len - (out - buf));
+
+       out += sprintf(out, "Periodic load table\n");
+       for (i = 0; i < MAX_PHASE; ++i) {
+               out += sprintf(out, "\t%d", uhci->load[i]);
+               if (i % 8 == 7)
+                       *out++ = '\n';
+       }
+       out += sprintf(out, "Total: %d, #INT: %d, #ISO: %d\n",
+                       uhci->total_load,
+                       uhci_to_hcd(uhci)->self.bandwidth_int_reqs,
+                       uhci_to_hcd(uhci)->self.bandwidth_isoc_reqs);
        if (debug <= 1)
                return out - buf;