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path: root/drivers/s390/net/qeth_sys.c
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Diffstat (limited to 'drivers/s390/net/qeth_sys.c')
-rw-r--r--drivers/s390/net/qeth_sys.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c
index c1f3187f37e..5836737ac58 100644
--- a/drivers/s390/net/qeth_sys.c
+++ b/drivers/s390/net/qeth_sys.c
@@ -743,6 +743,47 @@ static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show,
qeth_dev_layer2_store);
static ssize_t
+qeth_dev_performance_stats_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct qeth_card *card = dev->driver_data;
+
+ if (!card)
+ return -EINVAL;
+
+ return sprintf(buf, "%i\n", card->options.performance_stats ? 1:0);
+}
+
+static ssize_t
+qeth_dev_performance_stats_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct qeth_card *card = dev->driver_data;
+ char *tmp;
+ int i;
+
+ if (!card)
+ return -EINVAL;
+
+ i = simple_strtoul(buf, &tmp, 16);
+ if ((i == 0) || (i == 1)) {
+ if (i == card->options.performance_stats)
+ return count;
+ card->options.performance_stats = i;
+ if (i == 0)
+ memset(&card->perf_stats, 0,
+ sizeof(struct qeth_perf_stats));
+ card->perf_stats.initial_rx_packets = card->stats.rx_packets;
+ card->perf_stats.initial_tx_packets = card->stats.tx_packets;
+ } else {
+ PRINT_WARN("performance_stats: write 0 or 1 to this file!\n");
+ return -EINVAL;
+ }
+ return count;
+}
+
+static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show,
+ qeth_dev_performance_stats_store);
+
+static ssize_t
qeth_dev_large_send_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev->driver_data;
@@ -928,6 +969,7 @@ static struct device_attribute * qeth_device_attrs[] = {
&dev_attr_canonical_macaddr,
&dev_attr_layer2,
&dev_attr_large_send,
+ &dev_attr_performance_stats,
NULL,
};