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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-04-16 14:11:14 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-04-17 14:07:35 +0200 |
| commit | a2ab833360abbed3321fd694b69a5a32ee15785f (patch) | |
| tree | bdf3d75949f7510d4bacfcbddcbe640c9e4cdca3 /drivers/pci/hotplug | |
| parent | s390/pci: msi cleanup hash usage (diff) | |
| download | linux-a2ab833360abbed3321fd694b69a5a32ee15785f.tar.xz linux-a2ab833360abbed3321fd694b69a5a32ee15785f.zip | |
s390/pci: debug device states
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>
Diffstat (limited to 'drivers/pci/hotplug')
| -rw-r--r-- | drivers/pci/hotplug/s390_pci_hpc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c index 7db249a25016..6053e7221b51 100644 --- a/drivers/pci/hotplug/s390_pci_hpc.c +++ b/drivers/pci/hotplug/s390_pci_hpc.c @@ -16,6 +16,7 @@ #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 @@ -49,6 +50,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot) 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 */ @@ -70,6 +72,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot) * 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... */ |