[ofw][patch][ibal] use non-pageable memory to prevent possibleproblems on power down

[Leonid Keller]

Applied to the trunk (2480).


________________________________

	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Leonid Keller
	Sent: Tuesday, September 15, 2009 11:15 AM
	To: ofw_list
	Subject: [ofw][patch][ibal] use non-pageable memory to prevent
possibleproblems on power down
	
	
	IBAL uses pageable memory to create PnP context.
	It can create possible problems in power down flows at the time
of system contention.
	 
	We saw some similar case at a customer.
	There is no strong evidence that that is what influenced, but
with this patch IBAL will be more safe and at no cost.
	 
	Found by Hobin Lee (Xsigo).
	 
	Index: kernel/al_pnp.c
	
===================================================================
	--- kernel/al_pnp.c (revision 2421)
	+++ kernel/al_pnp.c (working copy)
	@@ -587,7 +587,7 @@
	  CL_ASSERT( p_reg );
	 
	  /* No context exists for this port.  Create one. */
	- p_context = (al_pnp_context_t*)cl_pzalloc(
sizeof(al_pnp_context_t) );
	+ p_context = (al_pnp_context_t*)cl_zalloc(
sizeof(al_pnp_context_t) );
	  if( !p_context )
	  {
	   AL_PRINT( TRACE_LEVEL_ERROR, AL_DBG_ERROR,
	

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