tree d110f3614a6e5278abbf67441a951f00ea2ff4e6
parent 197df02cb3d3e969fb1d6fc11f5a634b7bfc2124
author Igor Russkikh <igor.russkikh@aquantia.com> 1508426633 +0300
committer David S. Miller <davem@davemloft.net> 1508585544 +0100

net: aquantia: Reset nic statistics on interface up/down

Internal statistics system on chip never gets reset until hardware
reboot. This is quite inconvenient in terms of ethtool statistics usage.

This patch implements incremental statistics update inside of
service callback.

Upon nic initialization, first request is done to fetch
initial stat data, current collected stat data gets cleared.
Internal statistics mailbox readout is improved to save space and
increase readability

Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>