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Implement boot time analysis framework.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-03-19 20:25:09 +01:00
parent e5a2dd7b55
commit e744219bb6
14 changed files with 232 additions and 8 deletions
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35
grub-core/bus/usb/usbhub.c
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@ -52,6 +52,8 @@ grub_usb_hub_add_dev (grub_usb_controller_t controller,
int i;
grub_usb_err_t err;
grub_boot_time ("Attaching USB device");
dev = grub_zalloc (sizeof (struct grub_usb_device));
if (! dev)
return NULL;
@ -108,8 +110,12 @@ grub_usb_hub_add_dev (grub_usb_controller_t controller,
/* Wait "recovery interval", spec. says 2ms */
grub_millisleep (2);
grub_boot_time ("Probing USB device driver");
grub_usb_device_attach (dev);
grub_boot_time ("Attached USB device");
return dev;
}
@ -194,6 +200,8 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
grub_usb_speed_t current_speed = GRUB_USB_SPEED_NONE;
int changed=0;
grub_boot_time ("detect_dev USB root portno=%d\n", portno);
#if 0
/* Specification does not say about disabling of port when device
* connected. If disabling is really necessary for some devices,
@ -203,6 +211,9 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
if (err)
return;
#endif
grub_boot_time ("Before the stable power wait portno=%d", portno);
/* Wait for completion of insertion and stable power (USB spec.)
* Should be at least 100ms, some devices requires more...
* There is also another thing - some devices have worse contacts
@ -239,6 +250,8 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
/* If the device is a Hub, scan it for more devices. */
if (dev->descdev.class == 0x09)
grub_usb_add_hub (dev);
grub_boot_time ("Attached root port");
}
grub_usb_err_t
@ -248,6 +261,8 @@ grub_usb_root_hub (grub_usb_controller_t controller)
struct grub_usb_hub *hub;
int changed=0;
grub_boot_time ("Registering USB root hub");
hub = grub_malloc (sizeof (*hub));
if (!hub)
return GRUB_USB_ERR_INTERNAL;
@ -287,6 +302,8 @@ grub_usb_root_hub (grub_usb_controller_t controller)
}
}
grub_boot_time ("USB root hub registered");
return GRUB_USB_ERR_NONE;
}
@ -407,12 +424,13 @@ poll_nonroot_hub (grub_usb_device_t dev)
/* Connected and status of connection changed ? */
if (status & GRUB_USB_HUB_STATUS_PORT_CONNECTED)
{
grub_boot_time ("Before the stable power wait portno=%d", i);
/* A device is actually connected to this port. */
/* Wait for completion of insertion and stable power (USB spec.)
* Should be at least 100ms, some devices requires more...
* There is also another thing - some devices have worse contacts
* and connected signal is unstable for some time - we should handle
* it - but prevent deadlock in case when device is too faulty... */
/* Wait for completion of insertion and stable power (USB spec.)
* Should be at least 100ms, some devices requires more...
* There is also another thing - some devices have worse contacts
* and connected signal is unstable for some time - we should handle
* it - but prevent deadlock in case when device is too faulty... */
for (total = j = 0; (j < 250) && (total < 2000); j++, total++)
{
grub_millisleep (1);
@ -432,6 +450,9 @@ poll_nonroot_hub (grub_usb_device_t dev)
if (!(current_status & GRUB_USB_HUB_STATUS_PORT_CONNECTED))
j = 0;
}
grub_boot_time ("After the stable power wait portno=%d", i);
grub_dprintf ("usb", "(non-root) total=%d\n", total);
if (total >= 2000)
continue;
@ -443,6 +464,8 @@ poll_nonroot_hub (grub_usb_device_t dev)
GRUB_USB_REQ_SET_FEATURE,
GRUB_USB_HUB_FEATURE_PORT_RESET,
i, 0, 0);
grub_boot_time ("Resetting port %d", i);
rescan = 1;
/* We cannot reset more than one device at the same time !
* Resetting more devices together results in very bad
@ -464,6 +487,8 @@ poll_nonroot_hub (grub_usb_device_t dev)
GRUB_USB_REQ_CLEAR_FEATURE,
GRUB_USB_HUB_FEATURE_C_PORT_RESET, i, 0, 0);
grub_boot_time ("Port %d reset", i);
if (status & GRUB_USB_HUB_STATUS_PORT_CONNECTED)
{
grub_usb_speed_t speed;