From: Ganesh Goudar <ganeshgr@chelsio.com>
Date: Fri, 14 Sep 2018 14:46:04 +0530
Subject: cxgb4: add per rx-queue counter for packet errors
Patch-mainline: v4.20-rc1
Git-commit: 992bea8e40b7f5d2ad5e59ce167556a84da388e2
References: bsc#1104279 FATE#325938 bsc#1104277 FATE#325936 bsc#1127371

print per rx-queue packet errors in sge_qinfo

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h         |    1 +
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c |    1 +
 drivers/net/ethernet/chelsio/cxgb4/sge.c           |    4 ++++
 3 files changed, 6 insertions(+)

--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -692,6 +692,7 @@ struct sge_eth_stats {              /* E
 	unsigned long rx_cso;       /* # of Rx checksum offloads */
 	unsigned long vlan_ex;      /* # of Rx VLAN extractions */
 	unsigned long rx_drops;     /* # of packets dropped due to no mem */
+	unsigned long bad_rx_pkts;  /* # of packets with err_vec!=0 */
 };
 
 struct sge_eth_rxq {                /* SW Ethernet Rx queue */
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2784,6 +2784,7 @@ do { \
 		RL("LROmerged:", stats.lro_merged);
 		RL("LROpackets:", stats.lro_pkts);
 		RL("RxDrops:", stats.rx_drops);
+		RL("RxBadPkts:", stats.bad_rx_pkts);
 		TL("TSO:", tso);
 		TL("TxCSO:", tx_cso);
 		TL("VLANins:", vlan_ins);
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2831,6 +2831,10 @@ int t4_ethrx_handler(struct sge_rspq *q,
 
 	csum_ok = pkt->csum_calc && !err_vec &&
 		  (q->netdev->features & NETIF_F_RXCSUM);
+
+	if (err_vec)
+		rxq->stats.bad_rx_pkts++;
+
 	if (((pkt->l2info & htonl(RXF_TCP_F)) ||
 	     tnl_hdr_len) &&
 	    (q->netdev->features & NETIF_F_GRO) && csum_ok && !pkt->ip_frag) {