/*
* @fn VOID CONTROL_Invoke_Parallel_Service(func, ctx, blocking, exclude)
*
* @param func - function to be invoked by each core in the system
* @param ctx - pointer to the parameter block for each function invocation
* @param blocking - Wait for invoked function to complete
* @param exclude - exclude the current core from executing the code
*
* @returns None
*
* @brief Service routine to handle all kinds of parallel invoke on all CPU calls
*
* <I>Special Notes:</I>
* Invoke the function provided in parallel in either a blocking or
* non-blocking mode. The current core may be excluded if desired.
* NOTE - Do not call this function directly from source code.
* Use the aliases CONTROL_Invoke_Parallel(), CONTROL_Invoke_Parallel_NB(),
* or CONTROL_Invoke_Parallel_XS().
*
*/
extern VOID
CONTROL_Invoke_Parallel_Service(VOID(*func) (PVOID),
PVOID ctx, int blocking, int exclude)
{
GLOBAL_STATE_cpu_count(driver_state) = 0;
GLOBAL_STATE_dpc_count(driver_state) = 0;
preempt_disable();
SMP_CALL_FUNCTION(func, ctx, 0, blocking);
if (!exclude) {
func(ctx);
}
preempt_enable();
return;
}
void
orig_dtrace_xcall(processorid_t cpu, dtrace_xcall_t func, void *arg)
{
//dtrace_printf("orig_dtrace_xcall %lu\n", cnt_xcall1);
cnt_xcall1++;
if (cpu == DTRACE_CPUALL) {
cnt_xcall2++;
/***********************************************/
/* Avoid calling local_irq_disable, since */
/* we will likely be called from the */
/* hrtimer callback. */
/***********************************************/
preempt_disable();
SMP_CALL_FUNCTION(func, arg, TRUE);
func(arg);
preempt_enable();
} else {
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 26)
/***********************************************/
/* 20090710 Special case where we are */
/* trying to call ourselves, since */
/* smp_call_function_single doesnt like us */
/* doing this. Patch provided by */
/* [email protected] */
/***********************************************/
int me = get_cpu();
put_cpu();
if (me == cpu) {
local_irq_disable();
func(arg);
local_irq_enable();
return;
}
SMP_CALL_FUNCTION_SINGLE(cpu, func, arg, TRUE);
#else
SMP_CALL_FUNCTION_SINGLE(cpu, func, arg, TRUE);
#endif
}
}
