]> git.baikalelectronics.ru Git - kernel.git/commit
net/ena: refactor ena_get_stats64 to be atomic context safe
authorNetanel Belgazal <netanel@annapurnalabs.com>
Thu, 9 Feb 2017 13:21:32 +0000 (15:21 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 10 Feb 2017 03:27:06 +0000 (22:27 -0500)
commit054ce6cd4ac521314f976f38c660166c9356d413
tree86c7227b467f50313292561b7412a2f8e608eb9d
parentacb91ad5762d8e2c6f72051217e17ca56e6563d6
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>
drivers/net/ethernet/amazon/ena/ena_admin_defs.h
drivers/net/ethernet/amazon/ena/ena_netdev.c
drivers/net/ethernet/amazon/ena/ena_netdev.h