Use the debugfs to keep track of a pci function's status changes.
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
extern debug_info_t *pci_debug_err_id;
#ifdef CONFIG_PCI_DEBUG
-#define zpci_dbg(fmt, args...) \
- do { \
- if (pci_debug_msg_id->level >= 2) \
- debug_sprintf_event(pci_debug_msg_id, 2, fmt , ## args);\
- } while (0)
+#define zpci_dbg(imp, fmt, args...) \
+ debug_sprintf_event(pci_debug_msg_id, imp, fmt, ##args)
#else /* !CONFIG_PCI_DEBUG */
-#define zpci_dbg(fmt, args...) do { } while (0)
+#define zpci_dbg(imp, fmt, args...) do { } while (0)
#endif
#define zpci_err(text...) \
static struct kmem_cache *zdev_irq_cache;
static struct kmem_cache *zdev_fmb_cache;
-debug_info_t *pci_debug_msg_id;
-debug_info_t *pci_debug_err_id;
-
static inline int irq_to_msi_nr(unsigned int irq)
{
return irq & ZPCI_MSI_MASK;
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/pci.h>
+#include <asm/pci_debug.h>
#include <asm/pci_clp.h>
/*
struct zpci_dev *zdev;
int rc;
+ zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
zdev = zpci_alloc_device();
if (IS_ERR(zdev))
return PTR_ERR(zdev);
if (!rc && rrb->response.hdr.rsp == CLP_RC_OK)
*fh = rrb->response.fh;
else {
- pr_err("Set PCI FN failed with response: %x cc: %d\n",
- rrb->response.hdr.rsp, rc);
+ zpci_dbg(0, "SPF fh:%x, cc:%d, resp:%x\n", *fh, rc,
+ rrb->response.hdr.rsp);
rc = -EIO;
}
clp_free_block(rrb);
if (!rc)
/* Success -> store enabled handle in zdev */
zdev->fh = fh;
+
+ zpci_dbg(3, "ena fid:%x, fh:%x, rc:%d\n", zdev->fid, zdev->fh, rc);
return rc;
}
if (!rc)
/* Success -> store disabled handle in zdev */
zdev->fh = fh;
- else
- dev_err(&zdev->pdev->dev,
- "Failed to disable fn handle: 0x%x\n", fh);
+
+ zpci_dbg(3, "dis fid:%x, fh:%x, rc:%d\n", zdev->fid, zdev->fh, rc);
return rc;
}
#include <linux/kernel.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
+#include <linux/export.h>
#include <linux/pci.h>
#include <asm/debug.h>
#include <asm/pci_dma.h>
static struct dentry *debugfs_root;
+debug_info_t *pci_debug_msg_id;
+EXPORT_SYMBOL_GPL(pci_debug_msg_id);
+debug_info_t *pci_debug_err_id;
+EXPORT_SYMBOL_GPL(pci_debug_err_id);
static char *pci_perf_names[] = {
/* hardware counters */
return -EINVAL;
debug_register_view(pci_debug_msg_id, &debug_sprintf_view);
debug_set_level(pci_debug_msg_id, 3);
- zpci_dbg("Debug view initialized\n");
/* error log */
pci_debug_err_id = debug_register("pci_error", 2, 1, 16);
return -EINVAL;
debug_register_view(pci_debug_err_id, &debug_hex_ascii_view);
debug_set_level(pci_debug_err_id, 6);
- zpci_err("Debug view initialized\n");
debugfs_root = debugfs_create_dir("pci", NULL);
return 0;
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/init.h>
+#include <asm/pci_debug.h>
#include <asm/sclp.h>
#define SLOT_NAME_SIZE 10
return -EIO;
rc = sclp_pci_configure(slot->zdev->fid);
+ zpci_dbg(3, "conf fid:%x, rc:%d\n", slot->zdev->fid, rc);
if (!rc) {
slot->zdev->state = ZPCI_FN_STATE_CONFIGURED;
/* automatically scan the device after is was configured */
* or do we need to trigger that here?
*/
rc = sclp_pci_deconfigure(slot->zdev->fid);
+ zpci_dbg(3, "deconf fid:%x, rc:%d\n", slot->zdev->fid, rc);
if (!rc) {
/* Fixme: better call List-PCI to find the disabled FH
for the FID since the FH should be opaque... */