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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2016-07-18 15:05:21 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-08-24 10:23:56 +0300
commitbd3a172557d6685f5fbd4b09713f74b84872e2b9 (patch)
tree92adc43266a1f53cfc70114ddbd89652bb582724 /arch/s390/pci
parent6c29588578edc9ae2c9fae27ff96f443cf39c0f3 (diff)
downloadlinux-bd3a172557d6685f5fbd4b09713f74b84872e2b9.tar.xz
s390/pci: add zpci_report_error interface
The 'report_error' interface for PCI devices found on s390 can be used by a user space program to inject an adapter error notification. Add a new kernel interface zpci_report_error to allow a PCI device driver to inject these error notifications without a detour over user space. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/pci')
-rw-r--r--arch/s390/pci/pci.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 871af75c69c2..15ffc19c8c0c 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -854,6 +854,15 @@ void zpci_stop_device(struct zpci_dev *zdev)
}
EXPORT_SYMBOL_GPL(zpci_stop_device);
+int zpci_report_error(struct pci_dev *pdev,
+ struct zpci_report_error_header *report)
+{
+ struct zpci_dev *zdev = to_zpci(pdev);
+
+ return sclp_pci_report(report, zdev->fh, zdev->fid);
+}
+EXPORT_SYMBOL(zpci_report_error);
+
static inline int barsize(u8 size)
{
return (size) ? (1 << size) >> 10 : 0;