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ethtool: provide netdev features with FEATURES_GET request

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Implement FEATURES_GET request to get network device features. These are
traditionally available via ETHTOOL_GFEATURES ioctl request.

v2:
  - style cleanup suggested by Jakub Kicinski

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kubecek
2020-03-12 21:07:48 +01:00
committed by David S. Miller
parent f70bb06563
commit 0524399d46
8 changed files with 202 additions and 12 deletions
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17
include/uapi/linux/ethtool_netlink.h
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@@ -24,6 +24,7 @@ enum {
ETHTOOL_MSG_DEBUG_SET,
ETHTOOL_MSG_WOL_GET,
ETHTOOL_MSG_WOL_SET,
ETHTOOL_MSG_FEATURES_GET,
/* add new constants above here */
__ETHTOOL_MSG_USER_CNT,
@@ -43,6 +44,7 @@ enum {
ETHTOOL_MSG_DEBUG_NTF,
ETHTOOL_MSG_WOL_GET_REPLY,
ETHTOOL_MSG_WOL_NTF,
ETHTOOL_MSG_FEATURES_GET_REPLY,
/* add new constants above here */
__ETHTOOL_MSG_KERNEL_CNT,
@@ -228,6 +230,21 @@ enum {
ETHTOOL_A_WOL_MAX = __ETHTOOL_A_WOL_CNT - 1
};
/* FEATURES */
enum {
ETHTOOL_A_FEATURES_UNSPEC,
ETHTOOL_A_FEATURES_HEADER, /* nest - _A_HEADER_* */
ETHTOOL_A_FEATURES_HW, /* bitset */
ETHTOOL_A_FEATURES_WANTED, /* bitset */
ETHTOOL_A_FEATURES_ACTIVE, /* bitset */
ETHTOOL_A_FEATURES_NOCHANGE, /* bitset */
/* add new constants above here */
__ETHTOOL_A_FEATURES_CNT,
ETHTOOL_A_FEATURES_MAX = __ETHTOOL_A_FEATURES_CNT - 1
};
/* generic netlink info */
#define ETHTOOL_GENL_NAME "ethtool"
#define ETHTOOL_GENL_VERSION 1