Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / ia64 / sn / kernel / bte_error.c

diff --git a/arch/ia64/sn/kernel/bte_error.c b/arch/ia64/sn/kernel/bte_error.c
index fcbc748..f1ec137 100644 (file)
--- a/arch/ia64/sn/kernel/bte_error.c
+++ b/arch/ia64/sn/kernel/bte_error.c
@@ -33,7 +33,7 @@ void bte_error_handler(unsigned long);
  * Wait until all BTE related CRBs are completed
  * and then reset the interfaces.
  */
-void shub1_bte_error_handler(unsigned long _nodepda)
+int shub1_bte_error_handler(unsigned long _nodepda)
 {
        struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
        struct timer_list *recovery_timer = &err_nodepda->bte_recovery_timer;
@@ -53,7 +53,7 @@ void shub1_bte_error_handler(unsigned long _nodepda)
            (err_nodepda->bte_if[1].bh_error == BTE_SUCCESS)) {
                BTE_PRINTK(("eh:%p:%d Nothing to do.\n", err_nodepda,
                            smp_processor_id()));
-               return;
+               return 1;
        }
 
        /* Determine information about our hub */
@@ -81,7 +81,7 @@ void shub1_bte_error_handler(unsigned long _nodepda)
                mod_timer(recovery_timer, HZ * 5);
                BTE_PRINTK(("eh:%p:%d Marked Giving up\n", err_nodepda,
                            smp_processor_id()));
-               return;
+               return 1;
        }
        if (icmr.ii_icmr_fld_s.i_crb_vld != 0) {
 
@@ -99,7 +99,7 @@ void shub1_bte_error_handler(unsigned long _nodepda)
                                BTE_PRINTK(("eh:%p:%d Valid %d, Giving up\n",
                                            err_nodepda, smp_processor_id(),
                                            i));
-                               return;
+                               return 1;
                        }
                }
        }
@@ -124,6 +124,42 @@ void shub1_bte_error_handler(unsigned long _nodepda)
        REMOTE_HUB_S(nasid, IIO_IBCR, ibcr.ii_ibcr_regval);
 
        del_timer(recovery_timer);
+       return 0;
+}
+
+/*
+ * Wait until all BTE related CRBs are completed
+ * and then reset the interfaces.
+ */
+int shub2_bte_error_handler(unsigned long _nodepda)
+{
+       struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
+       struct timer_list *recovery_timer = &err_nodepda->bte_recovery_timer;
+       struct bteinfo_s *bte;
+       nasid_t nasid;
+       u64 status;
+       int i;
+
+       nasid = cnodeid_to_nasid(err_nodepda->bte_if[0].bte_cnode);
+
+       /*
+        * Verify that all the BTEs are complete
+        */
+       for (i = 0; i < BTES_PER_NODE; i++) {
+               bte = &err_nodepda->bte_if[i];
+               status = BTE_LNSTAT_LOAD(bte);
+               if ((status & IBLS_ERROR) || !(status & IBLS_BUSY))
+                       continue;
+               mod_timer(recovery_timer, HZ * 5);
+               BTE_PRINTK(("eh:%p:%d Marked Giving up\n", err_nodepda,
+                           smp_processor_id()));
+               return 1;
+       }
+       if (ia64_sn_bte_recovery(nasid))
+               panic("bte_error_handler(): Fatal BTE Error");
+
+       del_timer(recovery_timer);
+       return 0;
 }
 
 /*
@@ -135,7 +171,6 @@ void bte_error_handler(unsigned long _nodepda)
        struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
        spinlock_t *recovery_lock = &err_nodepda->bte_recovery_lock;
        int i;
-       nasid_t nasid;
        unsigned long irq_flags;
        volatile u64 *notify;
        bte_result_t bh_error;
@@ -160,12 +195,15 @@ void bte_error_handler(unsigned long _nodepda)
        }
 
        if (is_shub1()) {
-               shub1_bte_error_handler(_nodepda);
+               if (shub1_bte_error_handler(_nodepda)) {
+                       spin_unlock_irqrestore(recovery_lock, irq_flags);
+                       return;
+               }
        } else {
-               nasid = cnodeid_to_nasid(err_nodepda->bte_if[0].bte_cnode);
-
-               if (ia64_sn_bte_recovery(nasid))
-                       panic("bte_error_handler(): Fatal BTE Error");
+               if (shub2_bte_error_handler(_nodepda)) {
+                       spin_unlock_irqrestore(recovery_lock, irq_flags);
+                       return;
+               }
        }
 
        for (i = 0; i < BTES_PER_NODE; i++) {