tree 86c7227b467f50313292561b7412a2f8e608eb9d
parent 22b331c9e0a345126708af60f7d00d38b53db70b
author Netanel Belgazal <netanel@annapurnalabs.com> 1486646492 +0200
committer David S. Miller <davem@davemloft.net> 1486697226 -0500

net/ena: refactor ena_get_stats64 to be atomic context safe

ndo_get_stat64() can be called from atomic context, but the current
implementation sends an admin command to retrieve the statistics from
the device. This admin command can sleep.

This patch re-factors the implementation of ena_get_stats64() to use
the {rx,tx}bytes/count from the driver's inner counters, and to obtain
the rx drop counter from the asynchronous keep alive (heart bit)
event.

Signed-off-by: Netanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: David S. Miller <davem@davemloft.net>