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netvsc: report per-channel stats in ethtool statistics

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Report packets and bytes transferred through a vmbus channel via ethtool.
This supersedes need for per-cpu statistics.

Example:
$ ethtool -S eth0
NIC statistics:
...
     tx_queue_0_packets: 3523179
     tx_queue_0_bytes: 505370920
     rx_queue_0_packets: 41430490
     rx_queue_0_bytes: 62714661254
     tx_queue_1_packets: 0
     tx_queue_1_bytes: 0
     rx_queue_1_packets: 0
     rx_queue_1_bytes: 0
...

Reviewed-by: Long Li <longli@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Simon Xiao <sixiao@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Xiao
2017-01-24 13:06:13 -08:00
committed by David S. Miller
parent 793e395555
commit 6c80f3fc23
3 changed files with 91 additions and 55 deletions
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2
drivers/net/hyperv/netvsc.c
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@@ -621,7 +621,7 @@ static void netvsc_send_tx_complete(struct netvsc_device *net_device,
q_idx = packet->q_idx;
channel = incoming_channel;
tx_stats = this_cpu_ptr(net_device_ctx->tx_stats);
tx_stats = &net_device->chan_table[q_idx].tx_stats;
u64_stats_update_begin(&tx_stats->syncp);
tx_stats->packets += packet->total_packets;