summaryrefslogtreecommitdiffstats
path: root/arch/s390
diff options
context:
space:
mode:
authorSebastian Ott <sebott@linux.vnet.ibm.com>2015-11-27 11:22:57 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-04-15 18:16:39 +0200
commit368704a65be8620df795ccbeb44e025dafbc3e1f (patch)
treeaa2a9b9f4466d6ddeca83617cdb375fa43fc71b8 /arch/s390
parent12283a4035691697977083a5ac1e00ad5cfa6a3d (diff)
downloadop-kernel-dev-368704a65be8620df795ccbeb44e025dafbc3e1f.zip
op-kernel-dev-368704a65be8620df795ccbeb44e025dafbc3e1f.tar.gz
s390/pci: add report_error attribute
Provide an report_error attribute to send an adapter-error notification associated with a PCI function. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/pci/pci_sysfs.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index f37a580..ed484dc 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -12,6 +12,8 @@
#include <linux/stat.h>
#include <linux/pci.h>
+#include <asm/sclp.h>
+
#define zpci_attr(name, fmt, member) \
static ssize_t name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
@@ -77,8 +79,29 @@ static ssize_t util_string_read(struct file *filp, struct kobject *kobj,
sizeof(zdev->util_str));
}
static BIN_ATTR_RO(util_string, CLP_UTIL_STR_LEN);
+
+static ssize_t report_error_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf,
+ loff_t off, size_t count)
+{
+ struct zpci_report_error_header *report = (void *) buf;
+ struct device *dev = kobj_to_dev(kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct zpci_dev *zdev = to_zpci(pdev);
+ int ret;
+
+ if (off || (count < sizeof(*report)))
+ return -EINVAL;
+
+ ret = sclp_pci_report(report, zdev->fh, zdev->fid);
+
+ return ret ? ret : count;
+}
+static BIN_ATTR(report_error, S_IWUSR, NULL, report_error_write, PAGE_SIZE);
+
static struct bin_attribute *zpci_bin_attrs[] = {
&bin_attr_util_string,
+ &bin_attr_report_error,
NULL,
};
OpenPOWER on IntegriCloud