For now, we only support outbound error injection. Actually, the
hardware supports injecting inbound errors as well. The patch enables
to inject inbound errors.
Signed-off-by: Gavin Shan <sha...@linux.vnet.ibm.com>
---
arch/powerpc/platforms/powernv/eeh-ioda.c | 59 ++++++++++++++++++++++++----
1 files changed, 50 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c
b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 855c1d5..3ee44b0 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -66,26 +66,60 @@ static struct notifier_block ioda_eeh_nb = {
};
#ifdef CONFIG_DEBUG_FS
-static int ioda_eeh_dbgfs_set(void *data, u64 val)
+static int ioda_eeh_dbgfs_set(void *data, int offset, u64 val)
{
struct pci_controller *hose = data;
struct pnv_phb *phb = hose->private_data;
- out_be64(phb->regs + 0xD10, val);
+ out_be64(phb->regs + offset, val);
return 0;
}
-static int ioda_eeh_dbgfs_get(void *data, u64 *val)
+static int ioda_eeh_dbgfs_get(void *data, int offset, u64 *val)
{
struct pci_controller *hose = data;
struct pnv_phb *phb = hose->private_data;
- *val = in_be64(phb->regs + 0xD10);
+ *val = in_be64(phb->regs + offset);
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_dbgfs_ops, ioda_eeh_dbgfs_get,
- ioda_eeh_dbgfs_set, "0x%llx\n");
+static int ioda_eeh_outb_dbgfs_set(void *data, u64 val)
+{
+ return ioda_eeh_dbgfs_set(data, 0xD10, val);
+}
+
+static int ioda_eeh_outb_dbgfs_get(void *data, u64 *val)
+{
+ return ioda_eeh_dbgfs_get(data, 0xD10, val);
+}
+
+static int ioda_eeh_inbA_dbgfs_set(void *data, u64 val)
+{
+ return ioda_eeh_dbgfs_set(data, 0xD90, val);
+}
+
+static int ioda_eeh_inbA_dbgfs_get(void *data, u64 *val)
+{
+ return ioda_eeh_dbgfs_get(data, 0xD90, val);
+}
+
+static int ioda_eeh_inbB_dbgfs_set(void *data, u64 val)
+{
+ return ioda_eeh_dbgfs_set(data, 0xE10, val);
+}
+
+static int ioda_eeh_inbB_dbgfs_get(void *data, u64 *val)
+{
+ return ioda_eeh_dbgfs_get(data, 0xE10, val);
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_outb_dbgfs_ops, ioda_eeh_outb_dbgfs_get,
+ ioda_eeh_outb_dbgfs_set, "0x%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_inbA_dbgfs_ops, ioda_eeh_inbA_dbgfs_get,
+ ioda_eeh_inbA_dbgfs_set, "0x%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_inbB_dbgfs_ops, ioda_eeh_inbB_dbgfs_get,
+ ioda_eeh_inbB_dbgfs_set, "0x%llx\n");
#endif /* CONFIG_DEBUG_FS */
/**
@@ -123,10 +157,17 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
}
#ifdef CONFIG_DEBUG_FS
- if (phb->dbgfs)
- debugfs_create_file("err_injct", 0600,
+ if (phb->dbgfs) {
+ debugfs_create_file("err_injct_outbound", 0600,
+ phb->dbgfs, hose,
+ &ioda_eeh_outb_dbgfs_ops);
+ debugfs_create_file("err_injct_inboundA", 0600,
phb->dbgfs, hose,
- &ioda_eeh_dbgfs_ops);
+ &ioda_eeh_inbA_dbgfs_ops);
+ debugfs_create_file("err_injct_inboundB", 0600,
+ phb->dbgfs, hose,
+ &ioda_eeh_inbB_dbgfs_ops);
+ }
#endif
phb->eeh_state |= PNV_EEH_STATE_ENABLED;
--
1.7.5.4
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
