IB/qib: Allow writes to the diag_counters to be able to clear them
Signed-off-by: Ira Weiny <weiny2@llnl.gov> Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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@ -347,7 +347,7 @@ static struct kobj_type qib_sl2vl_ktype = {
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#define QIB_DIAGC_ATTR(N) \
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static struct qib_diagc_attr qib_diagc_attr_##N = { \
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.attr = { .name = __stringify(N), .mode = 0444 }, \
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.attr = { .name = __stringify(N), .mode = 0664 }, \
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.counter = offsetof(struct qib_ibport, n_##N) \
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}
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@ -403,8 +403,27 @@ static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr,
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return sprintf(buf, "%u\n", *(u32 *)((char *)qibp + dattr->counter));
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}
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static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr,
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const char *buf, size_t size)
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{
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struct qib_diagc_attr *dattr =
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container_of(attr, struct qib_diagc_attr, attr);
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struct qib_pportdata *ppd =
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container_of(kobj, struct qib_pportdata, diagc_kobj);
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struct qib_ibport *qibp = &ppd->ibport_data;
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char *endp;
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long val = simple_strtol(buf, &endp, 0);
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if (val < 0 || endp == buf)
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return -EINVAL;
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*(u32 *)((char *) qibp + dattr->counter) = val;
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return size;
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}
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static const struct sysfs_ops qib_diagc_ops = {
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.show = diagc_attr_show,
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.store = diagc_attr_store,
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};
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static struct kobj_type qib_diagc_ktype = {
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