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zpcictl: Initiate recover after reset

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After a zpcitctl --reset the PCI function is currently left in an error
state. This seems unexpected, so follow the SCLP reset with an OS level
recovery using /sys/bus/devices/<dev>/recover.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Niklas Schnelle
2020-02-05 10:43:55 +01:00
committed by Jan Höppner
parent a1697a581d
commit bc0d40c580
1 changed files with 21 additions and 0 deletions
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21
zpcictl/zpcictl.c
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@@ -163,6 +163,26 @@ static unsigned int sysfs_read_value(struct zpci_device *pdev, const char *attr)
return val;
}
static void sysfs_write_value(struct zpci_device *pdev, const char *attr,
unsigned int val)
{
char *path;
FILE *fp;
path = util_path_sysfs("bus/pci/devices/%s/%s", pdev->slot, attr);
fp = fopen(path, "w");
if (!fp)
fopen_err(path);
if (fprintf(fp, "%x", val) < 0) {
fclose(fp);
warnx("Could not write to file %s: %s", path, strerror(errno));
free(path);
exit(EXIT_FAILURE);
}
fclose(fp);
free(path);
}
static void sysfs_write_data(struct zpci_report_error *report, char *slot)
{
size_t r_size;
@@ -297,6 +317,7 @@ static void sclp_issue_action(struct zpci_device *pdev, int action)
static void sclp_reset_device(struct zpci_device *pdev)
{
sclp_issue_action(pdev, SCLP_ERRNOTIFY_AQ_RESET);
sysfs_write_value(pdev, "recover", 1);
}
/*