You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.4 KiB
70 lines
2.4 KiB
diff -Nurb linux-2.6.16.1/drivers/usb/host/ehci.h linux-patched/drivers/usb/host/ehci.h
|
|
--- linux-2.6.16.1/drivers/usb/host/ehci.h 2006-03-27 22:49:02.000000000 -0800
|
|
+++ linux-patched/drivers/usb/host/ehci.h 2006-04-07 12:07:30.000000000 -0700
|
|
@@ -82,6 +82,7 @@
|
|
struct dma_pool *sitd_pool; /* sitd per split iso urb */
|
|
|
|
struct timer_list watchdog;
|
|
+ struct timer_list softirq;
|
|
struct notifier_block reboot_notifier;
|
|
unsigned long actions;
|
|
unsigned stamp;
|
|
diff -Nurb linux-2.6.16.1/drivers/usb/host/ehci-hcd.c linux-patched/drivers/usb/host/ehci-hcd.c
|
|
--- linux-2.6.16.1/drivers/usb/host/ehci-hcd.c 2006-03-27 22:49:02.000000000 -0800
|
|
+++ linux-patched/drivers/usb/host/ehci-hcd.c 2006-04-07 13:20:13.000000000 -0700
|
|
@@ -116,6 +116,7 @@
|
|
#define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */
|
|
#define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */
|
|
#define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */
|
|
+#define EHCI_SOFTIRQ (HZ/400)
|
|
|
|
/* Initial IRQ latency: faster than hw default */
|
|
static int log2_irq_thresh = 0; // 0 to 6
|
|
@@ -263,6 +264,16 @@
|
|
#include "ehci-sched.c"
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
+static irqreturn_t ehci_irq (struct usb_hcd *hcd, struct pt_regs *regs);
|
|
+
|
|
+static void ehci_softirq (unsigned long param)
|
|
+{
|
|
+ struct ehci_hcd *ehci = (struct ehci_hcd *) param;
|
|
+
|
|
+ if (ehci_irq(ehci_to_hcd(ehci),0) != IRQ_NONE)
|
|
+ set_bit(HCD_FLAG_SAW_IRQ, &(ehci_to_hcd(ehci))->flags);
|
|
+ mod_timer (&ehci->softirq, jiffies + EHCI_SOFTIRQ);
|
|
+}
|
|
|
|
static void ehci_watchdog (unsigned long param)
|
|
{
|
|
@@ -280,6 +291,10 @@
|
|
COUNT (ehci->stats.lost_iaa);
|
|
writel (STS_IAA, &ehci->regs->status);
|
|
ehci->reclaim_ready = 1;
|
|
+ if (!timer_pending(&ehci->softirq)) {
|
|
+ ehci_info(ehci, "switching to softirq\n");
|
|
+ mod_timer (&ehci->softirq, jiffies + EHCI_SOFTIRQ);
|
|
+ }
|
|
}
|
|
}
|
|
|
|
@@ -371,6 +388,7 @@
|
|
|
|
/* no more interrupts ... */
|
|
del_timer_sync (&ehci->watchdog);
|
|
+ del_timer_sync (&ehci->softirq);
|
|
|
|
spin_lock_irq(&ehci->lock);
|
|
if (HC_IS_RUNNING (hcd->state))
|
|
@@ -418,6 +436,10 @@
|
|
ehci->watchdog.function = ehci_watchdog;
|
|
ehci->watchdog.data = (unsigned long) ehci;
|
|
|
|
+ init_timer(&ehci->softirq);
|
|
+ ehci->softirq.function = ehci_softirq;
|
|
+ ehci->softirq.data = (unsigned long) ehci;
|
|
+
|
|
/*
|
|
* hw default: 1K periodic list heads, one per frame.
|
|
* periodic_size can shrink by USBCMD update if hcc_params allows.
|
|
|
|
|