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authorLinas Vepstas <linas@austin.ibm.com>2007-05-10 02:38:11 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-10 21:28:13 +1000
commit17213c3bf67bd532d4d04c286663f9bbf92b9c18 (patch)
tree835c3bd828ef427749b36a68665513fa0b1b475a /arch
parent979ee32f7f8e9582a0cadd4ed9a158ddc3036ad1 (diff)
downloadop-kernel-dev-17213c3bf67bd532d4d04c286663f9bbf92b9c18.zip
op-kernel-dev-17213c3bf67bd532d4d04c286663f9bbf92b9c18.tar.gz
[POWERPC] Assorted janitorial EEH cleanups
Assorted minor cleanups to EEH code; -- use literals, use kerneldoc format. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 13 ++++++++++--- arch/powerpc/platforms/pseries/eeh_driver.c | 7 ++++--- include/asm-powerpc/ppc-pci.h | 18 +++++++++++++++--- 3 files changed, 29 insertions(+), 9 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c13
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c7
2 files changed, 14 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 093438b..5f3e6d8 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -76,7 +76,7 @@
*/
#define EEH_MAX_FAILS 2100000
-/* Time to wait for a PCI slot to retport status, in milliseconds */
+/* Time to wait for a PCI slot to report status, in milliseconds */
#define PCI_BUS_RESET_WAIT_MSEC (60*1000)
/* RTAS tokens */
@@ -95,11 +95,18 @@ EXPORT_SYMBOL(eeh_subsystem_enabled);
/* Lock to avoid races due to multiple reports of an error */
static DEFINE_SPINLOCK(confirm_error_lock);
-/* Buffer for reporting slot-error-detail rtas calls */
+/* Buffer for reporting slot-error-detail rtas calls. Its here
+ * in BSS, and not dynamically alloced, so that it ends up in
+ * RMO where RTAS can access it.
+ */
static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX];
static DEFINE_SPINLOCK(slot_errbuf_lock);
static int eeh_error_buf_size;
+/* Buffer for reporting pci register dumps. Its here in BSS, and
+ * not dynamically alloced, so that it ends up in RMO where RTAS
+ * can access it.
+ */
#define EEH_PCI_REGS_LOG_LEN 4096
static unsigned char pci_regs_buf[EEH_PCI_REGS_LOG_LEN];
@@ -218,7 +225,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len)
void eeh_slot_error_detail(struct pci_dn *pdn, int severity)
{
size_t loglen = 0;
- memset(pci_regs_buf, 0, EEH_PCI_REGS_LOG_LEN);
+ pci_regs_buf[0] = 0;
rtas_pci_enable(pdn, EEH_THAW_MMIO);
loglen = gather_pci_data(pdn, pci_regs_buf, EEH_PCI_REGS_LOG_LEN);
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index f07d849..161a584 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -378,8 +378,9 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event)
/* Since rtas may enable MMIO when posting the error log,
* don't post the error log until after all dev drivers
- * have been informed. */
- eeh_slot_error_detail(frozen_pdn, 1 /* Temporary Error */);
+ * have been informed.
+ */
+ eeh_slot_error_detail(frozen_pdn, EEH_LOG_TEMP_FAILURE);
/* If all device drivers were EEH-unaware, then shut
* down all of the device drivers, and hope they
@@ -470,7 +471,7 @@ hard_fail:
location, drv_str, pci_str);
perm_error:
- eeh_slot_error_detail(frozen_pdn, 2 /* Permanent Error */);
+ eeh_slot_error_detail(frozen_pdn, EEH_LOG_PERM_FAILURE);
/* Notify all devices that they're about to go down. */
pci_walk_bus(frozen_bus, eeh_report_failure, NULL);
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