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List:       linux-ia64
Subject:    [patch] Altix BTE error handling fix
From:       Russ Anderson <rja () efs ! americas ! sgi ! com>
Date:       2005-01-10 23:33:19
Message-ID: 200501102333.j0ANXJ4p068948 () efs ! americas ! sgi ! com
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This patch fixes off-node BTE error handling.

Signed-off-by: Russ Anderson <rja@sgi.com>

------------------------------------------------------------------
Index: 2.6.11/arch/ia64/sn/kernel/bte_error.c
===================================================================
--- 2.6.11.orig/arch/ia64/sn/kernel/bte_error.c	2005-01-10 15:39:36.813394456 -0600
+++ 2.6.11/arch/ia64/sn/kernel/bte_error.c	2005-01-10 16:06:53.244516756 -0600
@@ -47,6 +47,7 @@
 	ii_icrb0_d_u_t icrbd;	/* II CRB Register D */
 	ii_ibcr_u_t ibcr;
 	ii_icmr_u_t icmr;
+	ii_ieclr_u_t ieclr;
 
 	BTE_PRINTK(("bte_error_handler(%p) - %d\n", err_nodepda,
 		    smp_processor_id()));
@@ -131,6 +132,14 @@
 	imem.ii_imem_fld_s.i_b0_esd = imem.ii_imem_fld_s.i_b1_esd = 1;
 	REMOTE_HUB_S(nasid, IIO_IMEM, imem.ii_imem_regval);
 
+	/* Clear BTE0/1 error bits */
+	ieclr.ii_ieclr_regval = 0;
+	if (err_nodepda->bte_if[0].bh_error != BTE_SUCCESS)
+		ieclr.ii_ieclr_fld_s.i_e_bte_0 = 1;
+	if (err_nodepda->bte_if[1].bh_error != BTE_SUCCESS)
+		ieclr.ii_ieclr_fld_s.i_e_bte_1 = 1;
+	REMOTE_HUB_S(nasid, IIO_IECLR, ieclr.ii_ieclr_regval);
+
 	/* Reinitialize both BTE state machines. */
 	ibcr.ii_ibcr_regval = REMOTE_HUB_L(nasid, IIO_IBCR);
 	ibcr.ii_ibcr_fld_s.i_soft_reset = 1;
@@ -152,7 +161,7 @@
 		err_nodepda->bte_if[i].cleanup_active = 0;
 		BTE_PRINTK(("eh:%p:%d Unlocked %d\n", err_nodepda,
 			    smp_processor_id(), i));
-		spin_unlock(&pda->cpu_bte_if[i]->spinlock);
+		spin_unlock(&err_nodepda->bte_if[i].spinlock);
 	}
 
 	del_timer(recovery_timer);
-- 
Russ Anderson, OS RAS/Partitioning Project Lead  
SGI - Silicon Graphics Inc          rja@sgi.com
-
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