netdev - [PATCH v2 net-next 7/8] dpaa2-eth: Cleanup channel stats

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Message-ID: <1543249591-14563-8-git-send-email-ruxandra.radulescu@nxp.com>
Date:   Mon, 26 Nov 2018 16:27:33 +0000
From:   Ioana Ciocoi Radulescu <ruxandra.radulescu@....com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>
CC:     Ioana Ciornei <ioana.ciornei@....com>,
        "dsahern@...il.com" <dsahern@...il.com>,
        Camelia Alexandra Groza <camelia.groza@....com>
Subject: [PATCH v2 net-next 7/8] dpaa2-eth: Cleanup channel stats

Remove unused counter. Reorder fields in channel stats structure
to match the ethtool strings order and make it easier to print them
with ethtool -S.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@....com>
---
v2: no changes

 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c     |  1 -
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h     |  6 ++----
 drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 16 +++++-----------
 3 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index bc582c4..d2bc5da 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -467,7 +467,6 @@ static int consume_frames(struct dpaa2_eth_channel *ch,
 		return 0;
 
 	fq->stats.frames += cleaned;
-	ch->stats.frames += cleaned;
 
 	/* A dequeue operation only pulls frames from a single queue
 	 * into the store. Return the frame queue as an out param.
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
index 5530a0e..41a2a0d 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
@@ -245,12 +245,10 @@ struct dpaa2_eth_fq_stats {
 struct dpaa2_eth_ch_stats {
 	/* Volatile dequeues retried due to portal busy */
 	__u64 dequeue_portal_busy;
-	/* Number of CDANs; useful to estimate avg NAPI len */
-	__u64 cdan;
-	/* Number of frames received on queues from this channel */
-	__u64 frames;
 	/* Pull errors */
 	__u64 pull_err;
+	/* Number of CDANs; useful to estimate avg NAPI len */
+	__u64 cdan;
 };
 
 /* Maximum number of queues associated with a DPNI */
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
index 26bd5a2..79eeebe 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -174,8 +174,6 @@ static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
 	int j, k, err;
 	int num_cnt;
 	union dpni_statistics dpni_stats;
-	u64 cdan = 0;
-	u64 portal_busy = 0, pull_err = 0;
 	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
 	struct dpaa2_eth_drv_stats *extras;
 	struct dpaa2_eth_ch_stats *ch_stats;
@@ -212,16 +210,12 @@ static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
 	}
 	i += j;
 
-	for (j = 0; j < priv->num_channels; j++) {
-		ch_stats = &priv->channel[j]->stats;
-		cdan += ch_stats->cdan;
-		portal_busy += ch_stats->dequeue_portal_busy;
-		pull_err += ch_stats->pull_err;
+	/* Per-channel stats */
+	for (k = 0; k < priv->num_channels; k++) {
+		ch_stats = &priv->channel[k]->stats;
+		for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64); j++)
+			*((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
 	}
-
-	*(data + i++) = portal_busy;
-	*(data + i++) = pull_err;
-	*(data + i++) = cdan;
 }
 
 static int prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
-- 
2.7.4