linux-kernel - [PATCH 4.4 306/312] bna: add missing per queue ethtool stat

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Date:   Fri,  8 May 2020 14:34:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ivan Vecera <ivecera@...hat.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.4 306/312] bna: add missing per queue ethtool stat

From: Ivan Vecera <ivecera@...hat.com>

commit 2835d2d9e366a2985b24051d228333bfba82f3a7 upstream.

Commit ba5ca784 "bna: check for dma mapping errors" added besides other
things a statistic that counts number of DMA buffer mapping failures
per each Rx queue. This counter is not included in ethtool stats output.

Fixes: ba5ca784 "bna: check for dma mapping errors"
Signed-off-by: Ivan Vecera <ivecera@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/ethernet/brocade/bna/bnad_ethtool.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/brocade/bna/bnad_ethtool.c
+++ b/drivers/net/ethernet/brocade/bna/bnad_ethtool.c
@@ -31,7 +31,7 @@
 #define BNAD_NUM_TXF_COUNTERS 12
 #define BNAD_NUM_RXF_COUNTERS 10
 #define BNAD_NUM_CQ_COUNTERS (3 + 5)
-#define BNAD_NUM_RXQ_COUNTERS 6
+#define BNAD_NUM_RXQ_COUNTERS 7
 #define BNAD_NUM_TXQ_COUNTERS 5
 
 #define BNAD_ETHTOOL_STATS_NUM						\
@@ -658,6 +658,8 @@ bnad_get_strings(struct net_device *netd
 				string += ETH_GSTRING_LEN;
 				sprintf(string, "rxq%d_allocbuf_failed", q_num);
 				string += ETH_GSTRING_LEN;
+				sprintf(string, "rxq%d_mapbuf_failed", q_num);
+				string += ETH_GSTRING_LEN;
 				sprintf(string, "rxq%d_producer_index", q_num);
 				string += ETH_GSTRING_LEN;
 				sprintf(string, "rxq%d_consumer_index", q_num);
@@ -678,6 +680,9 @@ bnad_get_strings(struct net_device *netd
 					sprintf(string, "rxq%d_allocbuf_failed",
 								q_num);
 					string += ETH_GSTRING_LEN;
+					sprintf(string, "rxq%d_mapbuf_failed",
+						q_num);
+					string += ETH_GSTRING_LEN;
 					sprintf(string, "rxq%d_producer_index",
 								q_num);
 					string += ETH_GSTRING_LEN;