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ethtool: support FEC settings over netlink

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Add FEC API to netlink.

This is not a 1-to-1 conversion.

FEC settings already depend on link modes to tell user which
modes are supported. Take this further an use link modes for
manual configuration. Old struct ethtool_fecparam is still
used to talk to the drivers, so we need to translate back
and forth. We can revisit the internal API if number of FEC
encodings starts to grow.

Enforce only one active FEC bit (by using a bit position
rather than another mask).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2021-03-29 20:59:52 -07:00 • committed by David S. Miller
parent 28110056f2
commit 1e5d1f69d9
6 changed files with 339 additions and 3 deletions
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17
include/uapi/linux/ethtool_netlink.h
View file

@ -42,6 +42,8 @@ enum {
ETHTOOL_MSG_CABLE_TEST_ACT,
ETHTOOL_MSG_CABLE_TEST_TDR_ACT,
ETHTOOL_MSG_TUNNEL_INFO_GET,
ETHTOOL_MSG_FEC_GET,
ETHTOOL_MSG_FEC_SET,
/* add new constants above here */
__ETHTOOL_MSG_USER_CNT,
@ -80,6 +82,8 @@ enum {
ETHTOOL_MSG_CABLE_TEST_NTF,
ETHTOOL_MSG_CABLE_TEST_TDR_NTF,
ETHTOOL_MSG_TUNNEL_INFO_GET_REPLY,
ETHTOOL_MSG_FEC_GET_REPLY,
ETHTOOL_MSG_FEC_NTF,
/* add new constants above here */
__ETHTOOL_MSG_KERNEL_CNT,
@ -629,6 +633,19 @@ enum {
ETHTOOL_A_TUNNEL_INFO_MAX = (__ETHTOOL_A_TUNNEL_INFO_CNT - 1)
};
/* FEC */
enum {
ETHTOOL_A_FEC_UNSPEC,
ETHTOOL_A_FEC_HEADER, /* nest - _A_HEADER_* */
ETHTOOL_A_FEC_MODES, /* bitset */
ETHTOOL_A_FEC_AUTO, /* u8 */
ETHTOOL_A_FEC_ACTIVE, /* u32 */
__ETHTOOL_A_FEC_CNT,
ETHTOOL_A_FEC_MAX = (__ETHTOOL_A_FEC_CNT - 1)
};
/* generic netlink info */
#define ETHTOOL_GENL_NAME "ethtool"
#define ETHTOOL_GENL_VERSION 1