@@ -181,12 +181,17 @@ gve_get_ethtool_stats(struct net_device *netdev,
sizeof(int), GFP_KERNEL);
if (!rx_qid_to_stats_idx)
return;
+ for (ring = 0; ring < priv->rx_cfg.num_queues; ring++)
+ rx_qid_to_stats_idx[ring] = -1;
tx_qid_to_stats_idx = kmalloc_array(num_tx_queues,
sizeof(int), GFP_KERNEL);
if (!tx_qid_to_stats_idx) {
kfree(rx_qid_to_stats_idx);
return;
}
+ for (ring = 0; ring < num_tx_queues; ring++)
+ tx_qid_to_stats_idx[ring] = -1;
+
for (rx_pkts = 0, rx_bytes = 0, rx_hsplit_pkt = 0,
rx_skb_alloc_fail = 0, rx_buf_alloc_fail = 0,
rx_desc_err_dropped_pkt = 0, rx_hsplit_unsplit_pkt = 0,
@@ -308,11 +313,11 @@ gve_get_ethtool_stats(struct net_device *netdev,
data[i++] = rx->rx_copybreak_pkt;
data[i++] = rx->rx_copied_pkt;
/* stats from NIC */
- if (skip_nic_stats) {
+ stats_idx = rx_qid_to_stats_idx[ring];
+ if (skip_nic_stats || stats_idx == -1) {
/* skip NIC rx stats */
i += NIC_RX_STATS_REPORT_NUM;
} else {
- stats_idx = rx_qid_to_stats_idx[ring];
for (j = 0; j < NIC_RX_STATS_REPORT_NUM; j++) {
u64 value =
be64_to_cpu(report_stats[stats_idx + j].value);
@@ -383,11 +388,11 @@ gve_get_ethtool_stats(struct net_device *netdev,
data[i++] = gve_tx_load_event_counter(priv, tx);
data[i++] = tx->dma_mapping_error;
/* stats from NIC */
- if (skip_nic_stats) {
+ stats_idx = tx_qid_to_stats_idx[ring];
+ if (skip_nic_stats || stats_idx == -1) {
/* skip NIC tx stats */
i += NIC_TX_STATS_REPORT_NUM;
} else {
- stats_idx = tx_qid_to_stats_idx[ring];
for (j = 0; j < NIC_TX_STATS_REPORT_NUM; j++) {
u64 value =
be64_to_cpu(report_stats[stats_idx + j].value);
We now account for the fact that the NIC might send us stats for a subset of queues. Without this change, gve_get_ethtool_stats might make an invalid access on the priv->stats_report->stats array. Signed-off-by: Shailend Chand <shailend@google.com> --- drivers/net/ethernet/google/gve/gve_ethtool.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)