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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2015-11-27 11:22:57 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-04-15 18:16:39 +0200 |
| commit | 368704a65be8620df795ccbeb44e025dafbc3e1f (patch) | |
| tree | aa2a9b9f4466d6ddeca83617cdb375fa43fc71b8 /arch/s390/pci | |
| parent | 12283a4035691697977083a5ac1e00ad5cfa6a3d (diff) | |
| download | linux-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/pci')
| -rw-r--r-- | arch/s390/pci/pci_sysfs.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index f37a5808883d..ed484dc84d14 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, }; |