netdev - [PATCH netnext 14/16] net: aquantia: get total counters from DMA block

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <35729c530dee2886ecf82cf11acc208f9d9abc38.1555158087.git.igor.russkikh@aquantia.com>
Date:   Sat, 13 Apr 2019 12:32:15 +0000
From:   Igor Russkikh <Igor.Russkikh@...antia.com>
To:     "David S . Miller" <davem@...emloft.net>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Nikita Danilov <Nikita.Danilov@...antia.com>,
        Dmitry Bogdanov <Dmitry.Bogdanov@...antia.com>,
        Igor Russkikh <Igor.Russkikh@...antia.com>,
        Nikita Danilov <Nikita.Danilov@...antia.com>
Subject: [PATCH netnext 14/16] net: aquantia: get total counters from DMA
 block

From: Dmitry Bogdanov <dmitry.bogdanov@...antia.com>

aq_nic_update_ndev_stats pushes statistics to ndev->stats from
system interface. This is not always good because it counts packets/bytes
before any of rx filters (including mac filter).

Its better to report the packet/bytes statistics from DMA
counters which gives actual values of data transferred over pci.
System level stats is still available via ethtool.

Signed-off-by: Nikita Danilov <ndanilov@...antia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@...antia.com>
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@...antia.com>
---
 drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index 45a29cfba282..ce4a8bd14475 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -766,11 +766,12 @@ static void aq_nic_update_ndev_stats(struct aq_nic_s *self)
 	struct net_device *ndev = self->ndev;
 	struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
 
-	ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc;
-	ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc;
+	ndev->stats.rx_packets = stats->dma_pkt_rc;
+	ndev->stats.rx_bytes = stats->dma_oct_rc;
 	ndev->stats.rx_errors = stats->erpr;
-	ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc;
-	ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc;
+	ndev->stats.rx_dropped = stats->dpc;
+	ndev->stats.tx_packets = stats->dma_pkt_tc;
+	ndev->stats.tx_bytes = stats->dma_oct_tc;
 	ndev->stats.tx_errors = stats->erpt;
 	ndev->stats.multicast = stats->mprc;
 }
-- 
2.17.1