net: ena: ethtool: add extra properties retrieval via get_priv_flags
authorArthur Kiyanovski <akiyano@amazon.com>
Mon, 3 Jun 2019 14:43:20 +0000 (17:43 +0300)
committerDavid S. Miller <davem@davemloft.net>
Mon, 3 Jun 2019 20:30:38 +0000 (13:30 -0700)
commit315c28d2b714f2c52c0b22f38dbf9b44f8f0c9e4
tree71fc8dceadab619673c43fe36d2d9cc32194bc83
parent05d62ca218f8425c70389d0416c15bd0d455b416
net: ena: ethtool: add extra properties retrieval via get_priv_flags

This commit adds a mechanism for exposing different device
properties via ethtool's priv_flags. The strings are provided
by the device and copied to user space through the driver.

In this commit we:

Add commands, structs and defines necessary for handling
extra properties

Add functions for:
Allocation/destruction of a buffer for extra properties strings.
Retreival of extra properties strings and flags from the network device.

Handle the allocation of a buffer for extra properties strings.

* Initialize buffer with extra properties strings from the
  network device at driver startup.

Use ethtool's get_priv_flags to expose extra properties of
the ENA device

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.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_com.c
drivers/net/ethernet/amazon/ena/ena_com.h
drivers/net/ethernet/amazon/ena/ena_ethtool.c
drivers/net/ethernet/amazon/ena/ena_netdev.c
drivers/net/ethernet/amazon/ena/ena_netdev.h