From: Intiyaz Basha <intiyaz.basha@cavium.com>
Date: Fri, 3 Nov 2017 14:32:33 -0700
Subject: liquidio: do not consider packets dropped by network stack as driver
Rx dropped
Patch-mainline: v4.15-rc1
Git-commit: 952484610cc2f67303be4feedb0e52a519c31470
References: bsc#1119406 FATE#326562
netdev->rx_dropped was including packets dropped by napi_gro_receive.
If a packet is dropped by network stack, it should not be counted under
driver Rx dropped.
Made necessary changes to not include network stack drops under
netdev->rx_dropped.
Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/cavium/liquidio/lio_core.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
--- a/drivers/net/ethernet/cavium/liquidio/lio_core.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c
@@ -467,7 +467,6 @@ liquidio_push_packet(u32 octeon_id __att
if (netdev) {
struct lio *lio = GET_LIO(netdev);
struct octeon_device *oct = lio->oct_dev;
- int packet_was_received;
/* Do not proceed if the interface is not in RUNNING state. */
if (!ifstate_check(lio, LIO_IFSTATE_RUNNING)) {
@@ -570,18 +569,10 @@ liquidio_push_packet(u32 octeon_id __att
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vtag);
}
- packet_was_received = (napi_gro_receive(napi, skb) != GRO_DROP);
-
- if (packet_was_received) {
- droq->stats.rx_bytes_received += len;
- droq->stats.rx_pkts_received++;
- } else {
- droq->stats.rx_dropped++;
- netif_info(lio, rx_err, lio->netdev,
- "droq:%d error rx_dropped:%llu\n",
- droq->q_no, droq->stats.rx_dropped);
- }
+ napi_gro_receive(napi, skb);
+ droq->stats.rx_bytes_received += len;
+ droq->stats.rx_pkts_received++;
} else {
recv_buffer_free(skb);
}